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Stapler
Abstract: A stapler (1) is provided with a penetrating part (2) including a pair of cutting blades (21, 21) which are disposed at an interval in a second direction. Holes are formed in sheets (P) and a pair of leg portions (IOi, 10i) of a staple (10) penetrate the sheets (P) by penetrating and withdrawing the cutting blades (21, 21) into and from the sheets (P) in the first direction. An interval in the second direction between the pair of cutting blades (21, 21) at a tip end sides in the first direction is narrower than an interval in the second direction between the pair of cutting blades (21, 21) at base end sides which are opposite to the tip end sides in the first direction.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
14 February 2013
Publication Number
03/2015
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
remfry-sagar@remfry.com
Parent Application
Patent Number
Legal Status
Grant Date
2021-01-12
Renewal Date
Applicants
MAX CO., LTD.
6-6, NIHONBASHI HAKOZAKI-CHO, CHUO-KU, TOKYO
103-8502, JAPAN
Inventors
1. YUTAKA KATO
MAX CO., LTD.,
6-6, NIHONBASHI HAKOZAKI-CHO, CHUO-KU, TOKYO
103-8502, JAPAN
2. SUGURU MIWA
MAX CO., LTD.,
6-6, NIHONBASHI HAKOZAKI-CHO, CHUO-KU, TOKYO
103-8502, JAPAN
Specification
STAPLER
BACKGROUND OF THE INVENTION
5 [OOOI]
The present invention relates to a stapler capable of stapling a workpiece
using non-metal staples.
10 [0002]
Conventionally, there has been proposed a stapler capable of stapling a
workpiece using staples made of a non-metal material which is a soft material,
such as paper, instead of metal staples. A stapler using metal staples is
configured to penetrate the workpiece using a staple element, but a stapler
1s using staples made of a non-metal material which is a soft material, such as
paper, includes insert blades for forming holes in the workpiece, by which the
workpiece is formed with holes by the insert blades, and leg portions of the
staples penetrate the holes.
[0003]
2 o The stapler including the insert blades and using the staples made of the
non-metal material which is the soft material is configured to hold the staples
between two insert blades in a state in which a pair of leg portions of the staple
are arranged along each insert blade, and to drive the staple against the
workpiece together with the insert blades to allow the one pair of leg portions of
25 the staple to penetrate the workpiece.
[0004]
As a configuration of holding the staple at the insert blades,
JP-A-2002-168216 and JP-A-2007-167978 proposes a structure in which a
boss for holding a tip end of the leg portion of the staple is provided on an inner
3 o surface of the insert blade.
[0005]
In the structure, when the boss provided on the inside of the insert blade
passes the workpiece by an operation of the insert blade penetrating the
stapling blade and an operation of the insert blade leaving from the workpiece,
a resistance between the insert blade and the workpiece is increased. In a
5 stapler operated by a human power, if the resistance between the insert blade
and the workpiece is increased, it causes a load to increase in push-down
operation and returning operation of an operating handle.
[0006]
Further, when the boss provided on the inside of the insert blade passes
lo the workpiece, an inside of the hole is torn off. For this reason, when the leg
portions of the staple are bent, there is a convex portion causing the leg
portions or the like to deform, which deteriorates appearance of the staple
stapling the workpiece.
15 SUMMARY OF THE INVENTION
[0007]
One or more embodiments of the invention relates to a stapler capable of
decreasing a resistance when blade portions for penetrating leg portions of a
staple penetrate a workpiece, and improving appearance of the staple binding
20 the workpiece.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008]
FIG. 1 is a side sectional view illustrating one example of an internal
25 configuration of a stapler according to one embodiment.
FIG. 2 is a side sectional view illustrating one example of the internal
configuration of the stapler according to this embodiment.
FIG. 3 is a side sectional view illustrating one example of the stapler
according to this embodiment.
3 o FIG. 4 is a perspective view illustrating one example of the stapler
according to one embodiment when seen from a front.
FIG. 5 is a perspective view illustrating one example of the stapler
according to this embodiment when seen from a rear.
FIG. 6 is a forward sectional view illustrating one example of the internal
configuration in a penetrating mechanism of the stapler according to this
5 embodiment.
FIG. 7 is a forward sectional view illustrating one example of the internal
configuration in a cuttinglforming mechanism of the stapler according to this
embodiment.
FIG. 8 is a plan view illustrating one example of a
1 o staple-materials-connecting-body.
FIG. 9 is a perspective view illustrating one example of a receiving state
of the staple-materials-connecting-body.
FIG. 10 is a perspective view illustrating one example of a formed staple.
FIG. 11 is a cross-sectional view illustrating one example of a state in
15 which paper sheets to be stapled are stapled with the staple.
FIG. 12 is a perspective view illustrating one example of a staple
cartridge.
FIG. 13 is a perspective view illustrating one example of the staple
cartridge.
20 FIG. 14 is a perspective view illustrating one example of the internal
configuration in a portion of the penetrating mechanism of the stapler according
to this embodiment.
FIG. 15 is a front view illustrating one example of the penetrating
mechanism.
2 5 FIG. 16 is a rear view illustrating one example of the penetrating
mechanism.
FIG. 17 is a perspective view illustrating one example of the penetrating
mechanism.
FIG. 18 is a perspective view illustrating one example of a cutting blade
30 guide.
FIG. 19 is an operation chart illustrating an exemplary operation of the
penetrating mechanism.
FIG. 20 is an operation chart illustrating an exemplary operation of the
penetrating mechanism.
FIG. 21 is an operation chart illustrating an exemplary operation of the
penetrating mechanism.
FIG. 22 is an operation chart illustrating an exemplary operation of the
penetrating mechanism.
FIG. 23 is an operation chart illustrating an exemplary operation of the
penetrating mechanism.
FIG. 24 is an operation chart illustrating an exemplary operation of the
penetrating mechanism.
FIG. 25(a) is an explanatory diagram illustrating a variation of the cutting
blade.
FIG. 25(b) is an explanatory diagram illustrating a variation of the cutting
blade.
FIG. 26 is an operation chart illustrating an exemplary operation of the
penetrating mechanism according to a difference in the number of paper sheets
FIG. 27 is an operation chart illustrating an exemplary operation of the
penetrating mechanism according to the difference in the number of paper
sheets.
FIG. 28 is a front view illustrating one example of the cuttinglforming
mechanism.
FIG. 29 is a rear view illustrating one example of the cuttinglforming
mechanism.
FIG. 30 is a perspective view of the cuttinglforrning mechanism when
seen from a front.
FIG. 31 is a perspective view of the cuttinglforming mechanism when
seen from a rear.
FIG. 32 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 33 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 34 is an operation chart illustrating an exemplary operation of the
5 cuttinglforming mechanism.
FIG. 35 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 36 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
10 FIGS. 37(a), 37(b) and 37(c) illustrate an operation of cutting the
staple-materials-connecting-body.
FIG. 38 is a side sectional view of major parts of the stapler illustrating
one example of an attachingldetaching mechanism.
FIG. 39 is an operation chart illustrating an exemplary operation of the
15 attachingldetaching mechanism.
FIG. 40 is an operation chart illustrating an exemplary operation of the
attachingldetaching mechanism.
FIG. 41 is an operation chart illustrating an exemplary operation of the
attachingldetaching mechanism.
2 o FIG. 42 is an operation chart illustrating an exemplary operation of the
attachingldetaching mechanism.
FIGS. 43(a), 43(b) and 43(c) illustrate an exemplary operation of
conveying the staple-materials-connecting-body by an operation of the
attachingldetaching mechanism.
2 5 FIG. 44 is a side sectional view of major parts of the stapler illustrating a
variation of the attachingldetaching mechanism.
FIG. 45 is an operation chart illustrating an exemplary operation of the
attachingldetaching mechanism according to a variation.
FIG. 46 is an operation chart illustrating an exemplary operation of the
30 attachingldetaching mechanism according to a variation.
FIG. 47 is an operation chart illustrating an exemplary operation of the
attachingldetaching mechanism according to a variation.
FIG. 48 is an operation chart illustrating an exemplary operation of an
operating handle portion.
5 FIG. 49 is an operation chart illustrating an exemplary operation of the
operating handle portion.
FIG. 50 is an operation chart illustrating an exemplary operation of the
operating handle portion.
FIG. 51 is an operation chart illustrating an exemplary operation of the
l o operating handle portion.
FIG. 52 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 53 is an operation chart illustrating an exemplary operation of the
entire stapler.
15 FIG. 54 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 55 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 56 is an operation chart illustrating an exemplary operation of the
20 entire stapler.
FIG. 57 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 58 is an operation chart illustrating an exemplary operation of the
entire stapler.
2 5 FIG. 59 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 60 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 61 is an operation chart illustrating an exemplary operation of the
3 o entire stapler.
FIG. 62 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 63 is an operation chart illustrating an exemplary operation of the
entire stapler.
5 FIG. 64 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 65 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 66 is an operation chart illustrating an exemplary operation of the
lo entire stapler.
FIG. 67 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 68 is an operation chart illustrating an exemplary operation of the
entire stapler.
15 FIG. 69 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 70 is an operation chart illustrating an exemplary operation of the
entire stapler.
FIG. 71 is an operation chart illustrating an exemplary operation of the
20 penetrating mechanism and a bending mechanism.
FIG. 72 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 73 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
2 5 FIG. 74 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 75 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 76 is an operation chart illustrating an exemplary operation of the
30 penetrating mechanism and the bending mechanism.
FIG. 77 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 78 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
5 FIG. 79 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 80 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 81 is an operation chart illustrating an exemplary operation of the
1.0 penetrating mechanism and the bending mechanism.
FIG. 82 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 83 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
15 FIG. 84 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 85 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 86 is an operation chart illustrating an exemplary operation of the
20 penetrating mechanism and the bending mechanism.
FIG. 87 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 88 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
2 5 FIG. 89 is an operation chart illustrating an exemplary operation of the
penetrating mechanism and the bending mechanism.
FIG. 90 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 91 is an operation chart illustrating an exemplary operation of the
30 cuttinglforming mechanism.
FIG. 92 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 93 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
5 FIG. 94 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 95 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
FIG. 96 is an operation chart illustrating an exemplary operation of the
lo cuttinglforming mechanism.
FIG. 97 is an operation chart illustrating an exemplary operation of the
cuttinglforming mechanism.
DETAILED DESCRIPTION OF THE EMBODIMENTS
15 [0009]
An exemplary embodiment of a stapler will be described with reference
the accompanying drawings.
[OO 1 01
20 FIGS. 1 and 2 are side sectional views illustrating one example of the
internal configuration of the stapler according to the embodiment, in which FIG.
1 shows a mounting state of a staple cartridge, and FIG. 2 shows a detached
state of the staple cartridge. FIG. 3 is a side view illustrating one example of
the stapler according to the embodiment.
25 [OOII]
FIG. 4 is a perspective view illustrating one example of the stapler
according to one embodiment when seen from a front. FIG. 5 is a perspective
view illustrating one example of the stapler according to this embodiment when
seen from a rear. FIG. 6 is a forward sectional view illustrating one example of
30 the internal configuration in a penetrating mechanism of the stapler according to
this embodiment. FIG. 7 is a forward sectional view illustrating one example of
the internal configuration in a cuttinglforming mechanism of the stapler
according to this embodiment;
[OO 1 21
First, explaining an outline of the stapler 1 according to this embodiment,
5 the stapler 1 binds the paper sheets P which are a workpiece, using a staple 10
made of a non-metal material which is a soft material. The staple 10 is
supplied as a band-like staple-materials-connecting-body 1 Oa integrally
configured, as will be described later, and the staple-materials-connecting-body
10a is received in a staple cartridge 11, so that it is mounted in the stapler 1.
l o [0013]
The stapler 1 includes a penetrating mechanism 2 configured to make a
hole in the paper sheets P and to penetrate the staple 10 into the paper sheets
P by an action of driving the staple 10 which is cut from the
staple-materials-connecting-body 10a and formed.
15 [0014]
Further, the stapler 1 includes a cuttinglforming mechanism 3 configured
to cut a staple material 1 Om from the staple-materials-connecting-body 10a and
form the cut staple material 10m into a formed staple 10, in association with an
operation of the penetrating mechanism 2 which drives the staple 10 and
2 o penetrates the paper sheets P.
[00 1 51
Further, the stapler 1 includes a paper holding mechanism 4 configured
to hold the paper sheets P to be penetrated by the penetrating mechanism 2, in
association with the operation of the penetrating mechanism 2 which drives the
25 staple 10 and penetrates the paper sheets P.
[OO 1 61
Further, the stapler 1 includes a bending mechanism 5 configured to
bend the staple 10 penetrated the paper sheets P, in association with the
operation of the penetrating mechanism 2 which drives the staple 10 and
3 o penetrates the paper sheets P.
[OOI 71
Further, the stapler 1 includes a conveying mechanism 6 configured to
convey the staples 10 cut from the staple-materials-connecting-body 10a and
formed to the penetrating mechanism 2 which drives the staple 10, and convey
the staple-materials-connecting-body IOa to the cuttinglforming mechanism 3
from which the next staple 10 is conveyed to the penetrating mechanism 2.
[00 1 81
Further, the stapler 1 includes an attachingldetaching mechanism 7A
configured to convey the staple-materials-connecting-body 10a received in the
staple cartridge 11 to a desired position, in association with the conveying
mechanism 6, when the staple cartridge 11 is mounted in the stapler 1.
[00 1 91
The stapler 1 includes a body section 8 provided with the penetrating
mechanism 2, the cuttinglforming mechanism 3, the paper holding mechanism
4, the bending mechanism 5, the conveying mechanism 6, and the
attachingldetaching mechanism 7A which are described above. With the
stapler I , the respective above-described constituent elements is operated by a
desired driving force, and the respective constituent elements is operated in an
interlocking manner by operation of an operating handle 9 which is manipulated
by a human power.
[0020]
The body section 8 includes a paper placing base 80 in which the paper
sheets P are placed, and a cartridge receiving portion 81 mounted with the
staple cartridge 11. With the stapler 1, the paper placing base 80 is installed at
one side, that is, a front side, of the body section 8, and the cartridge receiving
portion 81 is installed at a rear side.
[002 1 ]
In the body section 8, the penetrating mechanism 2, the cuttinglforrning
mechanism 3, and the paper holding mechanism 4 are installed over the paper
placing base 80. The penetrating mechanism 2, the cuttinglforming
mechanism 3, and the paper holding mechanism 4 are disposed in order of the
cuttinglforming mechanism 3, the penetrating mechanism 2, and the paper
holding mechanism 4 from a rear side in a conveyance direction of the
staple-materials-connecting-body 1 Oa.
5 [0022]
The body section 8 is provided with guide grooves 82a for guiding
movement of the penetrating mechanism 2, guide grooves 82b for guiding
movement of the cuttinglforming mechanism 3, and guide grooves 82c for
guiding movement of the paper holding mechanism 4. The guide grooves 82a
10 to 82c respectively extend in a vertical direction with respect to the paper sheets
P placed in the paper placing base 80, and are provided parallel to each other.
[0023]
Further, in the body section 8, the conveying mechanism 6 is installed at
the rear of the penetrating mechanism 2, the cuttinglforming mechanism 3, and
15 the paper holding mechanism 4. The body section 8 is provided with a guide
(not illustrated) for guiding movement of the conveying mechanism 6. In
addition, in the body section 8, the bending mechanism 5 is installed under the
paper placing base 80.
100241
2 o The body section 8 is rotatably attached to a base section in a state in
which the body section is urged in an upward direction by a spring (not
illustrated) using a shaft 83a as a fulcrum. Also, as the body section 8 is
rotated around the shaft 83a, the body section operates in the vertical direction.
The operating handle 9 is rotatably attached to the body section 8 in a state in
25 which the operating handle 9 is urged in the upward direction by a spring (not
illustrated) using a shaft 90 as a fulcrum. Also, as the operating handle 9 is
rotated around the shaft 90, the operating handle operates in the vertical
direction.
[0025]
The operating handle 9 has an elongated slot 91 for transmitting the
operation of the operating handle rotating around the shaft 90 to the penetrating
mechanism 2. Further, the handle operating 9 has a link 92 for transmitting the
operation of the operating handle rotating around the shaft 90 to the conveying
mechanism 6 and the bending mechanism 5.
5 [0026]
In the stapler 1, the operation of the operating handle 9 is transmitted to
the penetrating mechanism 2, the cuttinglforming mechanism 3, and the paper
holding mechanism 4 through the elongated slot 91, so that the penetrating
mechanism 2, the cuttinglforming mechanism 3, and the paper holding
10 mechanism 4 are guided by the guide grooves 82a to 82c to move in the
vertical direction with respect to the paper sheets P placed in the paper placing
base 80.
[0027]
Accordingly, the stapler 1 performs the operation of the paper holding
1s mechanism 4 to hold the paper sheets P placed in the paper placing base 80,
as the operating handle 9 is operated. Also, in association with the operation
of the paper holding mechanism 4 to hold the paper sheets P, the stapler
performs the operation of the penetrating mechanism 2 to allow the staple 10 to
penetrate the paper sheets P. Furthermore, in association with the operation
20 of the penetrating mechanism 2 to allow the staple 10 to penetrate the paper
sheets P, the stapler performs the operation of the cuttinglforming mechanism 3
to cut and form the next staple 10.
[0028]
Further, the stapler 1 performs the operation of the bending mechanism
25 5 to bend the staple 10 penetrating the paper sheets P, as the body section 8 is
rotated in association with the operation of the operating handle 9.
[0029]
In the stapler 1, the operation of the operating handle 9 is transmitted to
the conveying mechanism 6 via the link 92, and thus the conveying mechanism
30 6 is moved in a forward and backward direction along the conveyance direction
of the staple-materials-connecting-body 10a. Accordingly, as the operating
handle 9 is operated, the stapler 1 conveys the
staple-materials-connecting-body 10a to the cuttinglforming mechanism 3 by
the conveying mechanism 6, and conveys the staple 10 located at the leading
end, which is cut and formed from the staple-materials-connecting-body, 10a to
the penetrating mechanism 2.
[0030]
FIG. 8 is a plan view illustrating one example of the
staple-materials-connecting-body according to this embodiment. FIG. 9 is a
perspective view illustrating one example of a receiving state of the
staple-materials-connecting-body according to this embodiment. FIG. 10 is a
perspective view illustrating one example of the formed staple according to the
embodiment. FIG. 11 is a cross-sectional view illustrating one example of a
state in which the paper sheets are stapled with the staple. Next, the
configuration of the staple 10 and the staple-materials-connecting-body 10a
according to this embodiment will be described with reference to each drawing.
[0031]
The staple 10 is made of a non-metal material, which is a soft material,
having a predetermined thickness. A staple material 10m before being formed
to the staple 10 has an elongated straight shape, and both tip end portions lob
in its longitudinal direction are tapered toward its tip end. In this embodiment,
the staple 10 and the staple material 10m is made of the paper, but may be
made of resin film or sheet, instead of the paper.
[0032]
The staple-materials-connecting-body 10a has a plurality of staple
materials 10m arranged parallel to each other in the longitudinal direction, and
each staple material 10m is connected to each other by a pair of connecting
portions 10c provided in the inside of the tip end portions lob near both end
portions thereof in the longitudinal direction. In the
staple-materials-connecting-body IOa, a portion outer than each connecting
portion 10c in the longitudinal direction of each staple material is not provided
with a portion connecting the staple materials 10m arranged parallel to each
other, due to the tapered shape of the tip end portion lob.
5 [0033]
The staple-materials-connecting-body 10a is provided with a hole 10d
adjacent to each connecting portion 10c at the inside of the one pair of the
connecting portions 10c connecting the staple materials 10m arranged parallel
to each other. The hole 10d has a predetermined length in the longitudinal
l o direction and a short-side direction of the staple material IOm, and, in this
embodiment, the hole is formed by an aperture of a substantially rectangular
shape due to the rounded leg portion. Also, the hole 10d may be formed as a
circular or oval aperture. The staple-materials-connecting-body 10a is not
provided with a cut portion of the staples arranged parallel to each other
15 between the connecting portion 10c and the hole 10d.
[OO 341
Further, the staple-materials-connecting-body 10a is provided with a slit
10e for separating the staple materials 10m arranged parallel to each other,
between the respective holes 10d. The slit portion 10e is consecutively formed
20 from one hole 1Oe to the other hole IOd, and thus the
staple-materials-connecting-body 10a is not provided with a connecting portion
of the staple materials 10 arranged parallel to each other, between the one hole
10d to the other hole 10d.
[0035]
2 5 The staple-materials-connecting-body 10a is punched by pressing or
stamping to have a predetermined shape of the tip end portions lob, the
connecting portions IOc, the holes IOd, and the slit portions IOe, which are
described above.
[0036]
The staple-materials-connecting-body 10a is provided with an adhesive
portion 10f on one surface, that is, a reverse surface, of the one tip end portion
lob which is the end portion of each staple material 10m in the longitudinal
direction. The adhesive portion 10f uses a property to obtain a desired
adhesive force when the leg portion 101 of the staple 10 is bonded, in
5 accordance with the material type of the staple 10.
[0037]
When the staple-materials-connecting-body I Oa is wound in a roll shape,
as illustrated in FIG. 9, the staple materials 10m are overlapped, and thus the
adhesive portion 10f located on the reverse surface of the one tip end portion
l o lob of the outer-peripheral staple material 10 comes into contact with the
obverse surface of the one tip end portion lob of the inner-peripheral staple
material 10.
[0038]
When the staple-materials-connecting-body 10a is wound in the roll
15 shape, the other surface of the one tip end portion which at least comes into
contact with the adhesive portion 10f is provided with a coated portion log
made of silicon or the like, thereby preventing the staples from sticking in the
staple-materials-connecting-body 10a which is wound.
[0039]
2 o Since the staple material 10m is cut and formed from the
staple-materials-connecting-body 10a by the cuttinglforming mechanism 3
illustrated in FIGS. 1 and 7, both end portions thereof in the longitudinal
direction are bent by a predetermined length to be substantially parallel in a first
direction, thereby the staple 10 in which a crown portion 10h as illustrated in
25 FIG. 10 and leg portions 10i at both end portions of the crown portion 10h is
formed.
[0040]
According to the staple 10 cut and formed from the
staple-materials-connecting-body 1 Oa, the one pair of leg portions 10i penetrate
30 the paper sheets P by the penetrating mechanism 2, and the one pair of leg
portions 10i penetrating the paper sheets P are bent in a second direction along
the paper sheets P by the bending mechanism 5.
[004 1 ]
Since the reverse surface of the one tip end portion lob of the staple 10
5 is provided with the adhesive portion IOf, an adhesive force 10f is provided on
the rear surface of one leg portion 10i in the form of the crown portion 1 Oh and
the leg portion 10i which are formed. In this embodiment, the staple 10 has a
bending position inside than the hole IOd, and a length of the leg portion 10i is
equal to or more than a half of the length of the crown portion 10h. If the one
l o pair of leg portions 10i are bent, the adhesive 10f is overlapped with the leg
portion 10i.
[0042]
Accordingly, as illustrated in FIG. 11, after the other leg portion 10i is
bent in the second direction along the paper sheets P, the one leg portion 10i is
1 5 bent in the second direction along the paper sheets P, and thus the one leg
portion 10i is overlapped with the other leg portion IOi, so that the leg portion
10i are bonded at the adhesive portion 1 Of.
[0043]
2 o FIGS. 12 and 13 are perspective views illustrating one example of the
staple cartridge. The configuration of the staple cartridge 11 will now be
described with reference to each drawing. Herein, FIG. 12 shows the state in
which the staple cartridge 11 is closed, while FIG. 13 shows the state in which
the staple cartridge 11 is opened.
25 [0044]
The staple cartridge 11 includes a cartridge body 12 and a cartridge
cover 13 for covering the cartridge body 12. In the staple cartridge 11, the
cartridge body 12 is closed by rotation of the cartridge body 13 around a shaft
13a provided at a rear end side thereof.
30 [0045]
The cartridge body 12 has a staple receiving portion 12a for receiving the
staple-materials-connecting-body 10a wound in the roll shape therein, and a
staple conveying path 14, protruding forward from the staple receiving portion
12a, for conveying the staple 10a.
5 [0046]
The staple conveying path 14 has a pair of guide convex portions 14a
adjacent to a tip end side thereof, the guide convex portions having a flat
bottom portion along the surface of the staple-materials-connecting-body 10a
drawn from the staple receiving portion 12a and extending in a straight line to
lo suppress the staple-materials-connecting-body 1Oa from lifting upward.
Further, the staple conveying path 14 has a groove portion 14b through which a
feed claw (will be described later) of the transport mechanism 6 protrudes into
the staple conveying path 14.
[0047]
15 The staple cartridge 1 I includes a pair of openable stopper guides 15 at
both left and right ends of the tip end side of the staple conveying path 14.
The stopper guide 15 is one example of the tip end position guide part, and is
made of a thin sheet-like metallic spring material to have an L-shape in this
example. The stopper guide 15 is installed to shift between a protruding
20 position and a retreated position at both left and right sides of the tip end portion
of the staple conveying path 14.
[0048]
The staple conveying path 14 is provided with a receiving table 16 for
supporting a portion (corresponding to the crown portion 10h) of the staple 10
25 located at the leading end of the staple-materials-connecting-body 10a
conveyed through the staple conveying path 14. The receiving table 16 is
formed continuously from the staple conveying path 14, and protrudes forward
from the tip end of the staple conveying path 14 by conforming to a width
corresponding to an inner width of the crown portion 10h of the staple 10 and a
30 length of one staple 10 in the short side direction, thereby supporting the staple
10 to be cut and formed by the cuttinglforming mechanism 3.
[0049]
The cartridge cover 13 is configured to cover the staple receiving portion
12a and the staple conveying path 14 of the cartridge body 12. The cartridge
5 cover 13 has a pair of bosses 13b as a guide openinglclosing part for opening
and closing the stopper guide 15 by openinglclosing operation of the cartridge
body 12.
[0050]
The cartridge cover 13 is provided with bosses 13b at positions in which
lo the bosses are engaged with the stopper guides 15 when the cartridge body 12
is closed. The stopper guides protrude into the staple conveying path 14 from
both left and right sides of the tip end portion of the staple conveying path 14,
as illustrated in FIG. 13.
[0051]
15 In the cartridge cover 13, when the cartridge body 12 is closed, the
bosses 13b are engaged with the stopper guides 15, and an interval between
the one pair of stopper guides 15 is extended by force. The stopper guides 15
are retreated outwardly from both left and right sides of the tip end portion of the
staple conveying path 14, as illustrated in FIG. 12, thereby opening the tip end
20 of the staple conveying path 14.
[0052]
Accordingly, the tip end position of the staple-materials-connecting-body
10a can be determined by opening the cartridge cover 13, accommodating the
staple-materials-connecting-body 10a wound in the roll shape into the staple
25 receiving portion 12a of the cartridge body 12, and abutting the tip end of the
staple-materials-connecting-body 10a against the stopper guides 15.
[0053]
As the cartridge cover 13 is closed and the stopper guides 15 are
retreated, the tip end position of the staple-materials-connecting-body 10a is
30 determined in such a way that the staple-materials-connecting-body 10a can be
conveyed, and then the staple-materials-connecting-body is accommodated in
the staple cartridge 11.
[0054]
The cartridge cover 13 is provided with a staple holding portion 17 at a
5 position opposite to the receiving table 16 when the cartridge body 12 is closed.
The staple holding portion 17 is made of a thin sheet-like metallic spring
material in the example to push the staple material IOm, located at the leading
end which is conveyed to the receiving table 16, in a direction of the receiving
table 16, thereby suppressing displacement of the staple 10 when the staple 10
l o is cut and formed by the cuttinglforming mechanism 3. In the staple cartridge
11, the cartridge cover 13 is provided a lock portion 13c for openably locking the
cartridge cover 13, and the cartridge body 12 is provided with a pawl portion
12b which is engaged with the lock portion 13c.
[0055]
15 If the staple cartridge 11 is mounted onto the cartridge receiving portion
81 of the stapler 1, as illustrated in FIG. 1, the staple conveying path 14
functions as a conveying path of the stapler 1. Also, the receiving table 16
protrudes toward the cuttinglforming mechanism 3 to function as a receiving
table of the staple 10 cut and formed by the cuttinglforming mechanism 3.
20 Also, in this embodiment, the stopper guides 15 and the bosses 13b are
provided at both sides of the staple conveying path 14, but may be provided any
one side of the staple conveying path 14.
[0056]
2 5 FIG. 14 is a perspective view illustrating one example of the internal
configuration in a portion of the penetrating mechanism of the stapler according
to this embodiment. FIG. 15 is a front view illustrating one example of the
penetrating mechanism. FIG. 16 is a rear view illustrating one example of the
penetrating mechanism. FIG. 17 is a perspective view illustrating one example
30 of the penetrating mechanism. The configuration of the penetrating
mechanism will now be described with reference each drawing.
[0057]
The penetrating mechanism 2 is one example of a penetrating part, and
includes a penetrating mechanism body 20 transmitted with the operation of the
5 operating handle 9, two sheets of cutting blades 21 for opening the holes in the
paper sheets P by the operation of the penetrating mechanism body 20 and
allowing the staple 10 to penetrate the paper sheets P, and a staple press-down
portion 22 for driving the staple 10.
COO581
10 The penetrating mechanism body 20 has guide convex portions 20a for
guiding the movement of the penetrating mechanism 2, a coupling shaft portion
20b connected with the operating handle 9, and a protruding pin 20c for
transmitting the operation of the operating handle 9 to the cuttinglforming
mechanism 3. Also, the penetrating mechanism body 20 has a guide convex
15 portion 20d for guiding the movement of the penetrating mechanism 2 and the
cuttinglforming mechanism 3, and a guide convex portion 20e for guiding the
movement of the penetrating mechanism 2 and the paper holding mechanism 4.
[0059]
The guide convex portions 20a protrude outwardly from both ends of the
20 penetrating mechanism body 20 in a widthwise direction, and are engaged with
the guide grooves 82a of the body section 8 which are provided in both sides of
the body section 8 of the stapler 1 in the widthwise direction and are opened
along the moving direction of the penetrating mechanism 2. The guide convex
portions 20a are formed in an elliptical shape which is formed by connecting two
25 semicircles with a straight line, to restrict a posture of the penetrating
mechanism 2 in its rotating direction.
[0060]
The coupling shaft portion 20b protrudes from both ends of the
penetrating mechanism body 20 in the widthwise direction to the outside of the
30 guide convex portions 20a, and is engaged with the elongated slot 91 provided
4
in the operating handle 9.
[0061]
1 The protruding pin 20c is configured to protrude from a rear surface,
I 1 which is opposite to the cuttinglforming mechanism 3, of the penetrating
5 mechanism body 20 in a projectinglretracting manner. The protruding pin 20c
is provided integrally with the penetrating mechanism body 20 made of a resin
material via a support portion 20f in this example.
[0062]
The protruding pin 20c is supported by the support portion 20f in a
l o cantilever form, and is configured to be projectedlretracted fromlinto the surface
opposite to the cuttinglforming mechanism 3 mainly by the resilient deformation
of the support portion 20f. Accordingly, the protruding pin 20c which protrudes
in a retractable manner can be configured, without installing a separate
component such as a spring.
15 [0063]
The guide convex portions 20d are formed by installing bosses at a rear
surface of the penetrating mechanism body 20 opposite to the cuttinglforming
mechanism 3. The guide convex portions 20e are formed by installing bosses
at a surface of the penetrating mechanism body 20 opposite to the paper
20 holding mechanism 4.
[0064]
The penetrating mechanism 2 includes two cutting blades 21 attached at
an interval to a lower portion of the penetrating mechanism body 20. The two
cutting blades 21 extend downward from the penetrating mechanism body 20 in
25 a direction parallel to each other, and a tip end which is a lower end of each
cutting blade 21 is formed with a blade portion 21a.
[0065]
An interval of the two cutting blades 21 is narrow at the tip end provided
with the blade portion 21a, and each cutting blade 21 is provided with a stepped
30 portion formed to widen its outer width from the tip end to the rear end, that is, a
base end, at an outer surface of the one pair of cutting blades 21, and a
stepped portion formed to widen an inner width from the tip end to the base
end.
[0066]
That is, each cutting blade 21 is configured so that the interval of the two
cutting blades 21 is equal to or slightly less than the inner width of the one pair
of leg portions 10i which is the inner width of the crown portion 10h of the staple
10, in the range of the predetermined length at the tip end provided with the
blade portion 21 a, thereby forming a first penetrating portion 21 b.
[0067]
Also, each cutting blade 21 is configured so that the interval of the two
cutting blades 21 is equal to or slightly more than the outer width of the one pair
of leg portions 10i which is the outer width of the crown portion 1 Oh of the staple
10, at the penetrating mechanism body 20, of which the upper portion rather
than the first penetrating portion 21 b becomes the base end, thereby forming a
second penetrating portion 21 c.
[0068]
Each cutting blade 21 is bent in a substantial crank form at a
predetermined intermediate position which becomes a boundary between the
first penetrating portion 21 b and the second penetrating portion 21c, and the
first penetrating portion 21 b and the second penetrating portion 21c extend in a
substantially straight shape along the moving direction of the penetrating
mechanism 2.
[0069]
Accordingly, each cutting blade 21 is provided with a stepped portion, of
which the inner width of the first penetrating portion 21 b is slightly narrow, at the
inside of the predetermined intermediate position which becomes the boundary
between the first penetrating portion 21 b and the second penetrating portion
21c, and a staple support portion 21d for supporting the leg portion 10i of the
staple 10 is formed by the stepped portion formed at the inside opposite to each
cutting blade 21.
[0070]
Also, each cutting blade 21 is provided with a stepped portion, of which
the outer width of the second penetrating portion 21c is wide, at the outside of
5 the predetermined intermediate position which becomes the boundary between
the first penetrating portion 21 b and the second penetrating portion 21c, and a
hole expansion portion 21e is formed by the stepped portion provided at the
outside of each cutting blade 21 to outwardly expand the hole penetrating the
paper sheets P by the penetrating operation of the cutting blade 21 with respect
l o to the paper sheets P.
[0071]
The staple support portion 21d has a gentle slope so that the inner
surface shape of the cutting blade 21 is gradually narrowed from the second
penetrating portion 21c to the first penetrating portion 21 b. The staple support
15 portion 21d is configured so that a variation in interval of the cutting blade 21 at
the staple support portion 21d does not cause the cutting resistance to increase
when the cutting blade 21 gets away from the paper sheets P.
[0072]
Further, the hole expansion portion 21e has a gentle slope so that the
20 outer surface shape of the cutting blade 21 is gradually widened from the first
penetrating portion 21b to the second penetrating portion 21c. The hole
expansion portion 21e is configured so that a variation in interval of the cutting
blade 21 at the hole expansion portion 21e does not cause the penetrating
resistance to increase when the cutting blade 21 penetrates the paper sheets P.
25 [0073]
At the tip end of the first penetrating portion 21 b rather than the staple
support portion 21d, the inner surfaces of the one pair of cutting blades 21
extend in a straight shape in an insertionlwithdrawal direction of the cutting
blade 21, so that the inner surface of the cutting blade 21 is not provided with a
3 o stepped portion at the tip end rather than the staple support portion 21d. Also,
1 at the tip end of the first penetrating portion 21 b rather than the hole expansion
I
portion 21e, the outer surfaces of the one pair of cutting blades 21 extend in a
straight shape in the insertionlwithdrawal direction of the cutting blade 21, so
that the outer surface of the cutting blade 21 is not provided with a stepped
5 portion at the tip end rather than the hole expansion portion 21e.
[0074]
At the tip end of the second penetrating portion 21c rather than the staple
support portion 21d, the inner surfaces of the one pair of cutting blades 21
extend in the straight shape in the insertionlwithdrawal direction of the cutting
10 blade 21, so that the inner surface of the cutting blade 21 is not provided with a
stepped portion at the base end rather than the staple support portion 21d.
Also, at the base end of the second penetrating portion 21c rather than the hole
expansion portion 21e, the outer surfaces of the one pair of cutting blades 21
extend in the straight shape in the insertionlwithdrawal direction of the cutting
15 blade 21, so that the outer surface of the cutting blade 21 is not provided with a
stepped portion at the base end rather than the hole expansion portion 21e.
[0075]
Each cutting blade 21 is provided with ejecting holes 21f which penetrate
front and back surfaces of the second penetrating portion 21c, and an ejecting
20 member (will be described later) for bending the leg portions of the staple 10
penetrating the paper sheets P protrudes from the ejecting holes.
[0076]
The staple press-down portion 22 is installed between the two cutting
blades 21 provided in the width of the crown portion 10h of the staple 10. The
25 staple press-down portion 22 is configured to move along the moving direction
of the penetrating mechanism body 20, and is supported by the penetrating
mechanism body 20 in the state in which it is urged downwardly by a spring
22a.
[0077]
3 o In the stapler 1, if the penetrating mechanism 2 moves down to a
predetermined position, the bending mechanism 5 is operated to start the
bending of the leg portions 10i of the staple 10 penetrating the paper sheets P.
In order to bend the leg portions 10i of the staple 10 at a constant timing
irrespective of the difference in the number of paper sheets P to be stapled to
5 be stapled, the difference in the number of the paper sheets P is absorbed by
the movement of the staple press-down portion 22, and the penetrating 2 is
configured to move down to the predetermined position.
[0078]
10 FIG. 10 is a perspective view illustrating one example of the cutting blade
guide. The configuration of the cutting blade guide will now be described with
reference to the drawing. As described above, the cutting blade 21 is formed
so that the first penetrating portion 21 b of the tip end is offset inwardly with
respect to the second penetrating portion 21c supported by the penetrating
15 mechanism body 20.
[0079]
For this reason, in the process in which the blade portion 21a of the
cutting blade 21 penetrates the paper sheets P by the lowering movement of
the penetrating mechanism 2, the force applied to the cutting blade 21 by the
20 penetrating mechanism body 20 acts on the second penetrating portion 21c, so
that a force is applied to the cutting blade 21 to be inclined inwardly.
[0080]
The cutting blade guide 23 is projected or retracted between the one pair
of cutting blades 21. As illustrated in FIG. 1 and so forth, the cutting blade
25 guide 23 is provided under the paper placing base 80, and is installed to be
projected or retracted between the one pair of cutting blades 21 penetrating the
paper sheets P, while being urged by the spring 23a.
[008 1 ]
Although the mechanism for operating the cutting blade guide 23 will be
30 described later, in the process in which the cutting blade 21 of the penetrating
mechanism 2 penetrates the paper sheets P by the operation of the operating
handle 9 and the leg portions 10i of the staple 10 penetrate the paper sheets P,
the butting blade guide is projected between the one pair of cutting blades 21 to
suppress the cutting blades 21 from being falling down. In the process of
5 stapling the leg portions 10i of the staple 10 by the bending mechanism 5, the
cutting blade guide is retracted between the one pair of cutting blades 21.
100821
FIGS. 19 to 24 are operation chart illustrating an example of the
l o operation of the penetrating mechanism. The insertinglwithdrawing process of
the cutting blade 21 with respect to the paper sheets P will be described with
reference to each drawing.
[0083]
In a standby state, as illustrated in FIG. 19, in the state in which the
15 crown portion 10h of the staple 10 is pushed down by the staple press-down
portion 22 between the one pair of cutting blades 21, the leg portions 10i of the
staple 10 are supported by the staple support portion 21d.
[0084]
When the penetrating mechanism 2 is moved down by the operation of
20 the operating handle 9 illustrated in FIG. 1 and so forth, and the blades portion
21a of the cutting blades 21 reach the paper sheets P placed in the paper
placing base 80, the cutting blades 21 start penetrating the paper sheets P, and
as illustrated in FIG. 20, holes PI are opened in the paper sheets P.
[0085]
2 5 According to the cutting blades 21, the first penetrating portions 21b
having the narrow width of the one pair of cutting blades 21 first penetrate the
paper sheets P. As described above, in the process in which the blade portion
21a of the cutting blade 21 penetrates the paper sheets, the force applied to the
cutting blade 21 by the penetrating mechanism body 20 acts on the second
30 penetrating portion 21c which is offset outwardly with respect to the first
penetrating portion 21 b, so that the cutting blade 21 is about to be inclined
inwardly.
[0086]
In this way, since the cutting blade guide 23 protrudes between the one
5 pair of cutting blades 21 penetrating the paper sheets P, each cutting blade 21
is prevented from being inclined inwardly by the penetrating operation of the
cutting blades 21 to the paper sheets P, so that the cutting blades 21 penetrates
in a direction substantially perpendicular to the paper sheets P.
[0087]
10 If the penetrating mechanism 2 is further moved down, as illustrated in
FIG. 21, the hole expansion portion 21e of the cutting blade 21 reaches the
paper sheets P. The hole expansion portion 21e has the gentle slope so that
the outer surface shape of the cutting blade 21 is gradually widened from the
first penetrating portion 21 b to the second penetrating portion 21c. Therefore,
15 when the hole expansion portion 21e of the cutting blade 21 penetrates the
paper sheets P by the lowering movement of the penetrating mechanism 2, the
burr P2 is formed at the outside of the hole PI of the paper sheets P to face
downward, so that the hole PI is widened in an outward direction.
[0088]
2 o According to the penetrating mechanism 2, in the state in which the
crown portion 10h of the staple 10 is pushed down by the staple press-down
portion 22 between the one pair of cutting blades 21, the leg portion 10i of the
staple 10 are supported by the staple support portion 21d. The staple support
portion 21d is formed at the inner portion of the hole expansion portion 21e in
25 the respective cutting blades 21 by the shape of the cutting blades 21 forming
the hole expansion portion 21e.
[0089]
In this way, when the hole expansion portion 21e of the cutting blade 21
penetrates the paper sheets P by the lowering movement of the penetrating
30 mechanism 2, the leg portions 10i of the staple 10 supported by the staple
support portion 21d penetrate the hole PI of the paper sheets P.
[0090]
If the penetrating mechanism 2 is further lowered, as illustrated in FIG.
22, the second penetrating portions 21c of the cutting blades 21 penetrate the
5 hole PI of the paper sheets P, and the leg portions 10i of the staple 10
supported inside the second penetrating portions 21c penetrate the hole PI of
the paper sheets P.
[0091]
In the process in which the second penetrating portions 21c penetrate
lo the hole PI of the paper sheets P, the force acting on the cutting blade 21 by
the penetrating mechanism body 20 coincides with the second penetrating
portion 21c, the force is not applied to the cutting blade 21 to be inclined
inwardly. Therefore, the cutting blade guide 23 is configured to be retracted in
the process in which the second penetrating portion 21c of the cutting blade 21
1s penetrates the hole PI of the paper sheets P.
[0092]
As described above, since the interval of the two cutting blades 21 is
substantially equal to the inner width of the one pair of leg portions 10i of the
staple 10 which are formed by the first penetrating portion 21b, the hole pl of
20 the paper sheets P formed by the first penetrating portion 21 b substantially
coincides with the position of the leg portion 10i of the staple 10.
[0093]
The burr P2 is formed at the outside of the hole PI of the paper sheets P
to face downward by the stepped portion of the hole expansion portion 21e
25 outside each cutting blade 21, so that the hole PI is widened in the outward
direction by the interval through which the overlapped cutting blade 21 and leg
portion 10i of the staple 10 can pass.
[0094]
The hole expansion portion 21e has the gentle slope so that the outer
30 surface shape of the cutting blade 21 is gradually widened from the first
penetrating portion 21 b to the second penetrating portion 21c. Therefore, in
the process in which the cutting blade 21 penetrates the paper sheets P, the
increase in resistance is suppressed when the hole expansion portion 21e of
the cutting blade 21 passes the hole PI of the paper sheets P.
5 [0095]
Accordingly, the force required to move the penetrating mechanism 2
down is small, and thus an operating load to push the operating handle 9 down
is decreased.
[0096]
10 After the penetrating mechanism 2 is further lowered and the crown
portion 1 Oh of the staple 10 arrives at the paper sheets P, the leg portions 10i of
the staple 10 are bent inwardly by the operation of the bending mechanism 5
which will be described later, and as illustrated in FIG. 23, the one pair of leg
portions 10i are bonded.
15 [0097]
Since the holes PI formed in the paper sheets P by the cutting blades 21
are widened outwardly by the hole expansion portions 21e so that the
overlapped cutting blades 21 and the leg portions 10i of the staple 10 can pass
the holes, the burr is not formed in the hole PI. Accordingly, when the leg
20 portions 10i of the staple 10 are bent inwardly, there is no convex portion to
deform the leg portion IOi, and thus the appearance of the staple 10 stapling
the paper sheets can be improved.
[0098]
After the paper sheets P are stapled by the staple 10, if the penetrating
25 mechanism 2 is moved up by upward returning of the operation handle 9, and
as illustrated in FIG. 24, the staple support portion 21d of the cutting blade 21
arrives at the back surface of the paper sheets P.
[0099]
The staple support portion 21d has the gentle slope so that the inner
30 surface shape of the cutting blade 21 is gradually narrowed from the second
penetrating portion 21c to the first penetrating portion 21 b. Also, the hole PI
through which the staple 10 stapling the paper sheets P passes is widened
outwardly.
[O 1 001
5 When the staple support portion 21d is withdrawn from the paper sheets
P, the force acts on the cutting blade 21 to widen the blade 21 outwardly.
However, since the hole PI formed by the cutting blade 21 is shaped to be
widened outwardly, the resistance is suppressed when the staple support
portion 21d of the cutting blade 21 passes the hole PI of the paper sheets P in
l o the process in which the cutting blade 21 is withdrawn from the paper sheets P.
[OI 011
Accordingly, the force required to move the penetrating mechanism 2 up
is small, and thus an operating load to return the operating handle 9 is
decreased.
1 5 [0102]
FIG. 25 is an explanatory diagram illustrating a variation of the cutting
blade. The cutting blade 21 of the above embodiment is bent in the substantial
crank form at the predetermined intermediate position which becomes the
boundary between the first penetrating portion 21 b and the second penetrating
20 portion 21c, with the blade thickness being substantially constant. The interval
between the two cutting blades 21 is narrow at the tip end provided with the
blade portion 21a. The hole expansion portion 21e is formed by the stepped
portion, of which the outer width is widened from the tip end to the base end, at
the outer surface of the one pair of cutting blades 21. The staple support
25 portion 21d is formed by the stepped portion, of which the inner width is
widened from the tip end to the base end, at the inner surface of the one pair of
cutting blades 21.
[0 1 031
Whereas, like a cutting blade 21A according to a variation illustrated in
30 FIG. 25(a), the blade thickness may be thickened at the predetermined
intermediate position which becomes the boundary between the first penetrating
portion 21 b and the second penetrating portion 21c. Thus, the hole expansion
portion 21e may be formed by the stepped portion, of which the outer width is
widened from the tip end to the base end, at the outer surface of the one pair of
5 cutting blades 21, and the staple support portion 21d may be formed by the
stepped portion, of which the inner width is widened from the tip end to the base
end, at the inner surface of the one pair of cutting blades 21.
[0 1 041
Further, like a cutting blade 21 B according to a variation illustrated in FIG.
l o 25(b), the blade thickness may be thinned at the predetermined intermediate
position which becomes the boundary between the first penetrating portion 21 b
and the second penetrating portion 21 c, so that the staple support portion 21 d is
provided at the tip end with respect to the hole expansion portion 21e.
[0 1 051
15 FIGS. 26 and 27 are operation charts illustrating an exemplary operation
of the penetrating mechanism according to the difference in the number of the
paper sheets. The stapler 1 is configured to bind the paper sheets P from n=2
sheets, which is the minimum number of sheets, to the predetermined
maximum number of sheets N, for example, N=15 sheets.
20 [0106]
After the penetrating mechanism 2 is lowered and the crown portion 10h
of the staple 10 arrives at the paper sheets P, the operation of the bending
mechanism 5 starts, and thus the leg portions 10i of the staple 10 are bent.
The lifting movement of the penetrating mechanism 2 and the operation of the
25 bending mechanism 5 are associated, so that the position of the penetrating
mechanism 2 to start the operation of the bending mechanism 5 is referred to
as a bending mechanism operating position M.
[OI 071
As illustrated in FIG. 26, in the state in which the paper sheets P having
30 the minimum number of stapled sheets n is placed in the paper placing base 80,
when the penetrating mechanism 2 is lowered to the bending mechanism
operating position M, the staple press-down portion 22 comes into contact with
the crown portion 10h of the staple 10 at a predetermined lower end position,
and thus the crown portion 10h presses the paper sheets P.
5 [0108]
Meanwhile, as illustrated in FIG. 27, in the state in which the paper
sheets P having the maximum number of stapled sheets N are placed in the
paper placing base 80, when the penetrating mechanism 2 is lowered to the
bending mechanism operating position M, the staple press-down portion 22
l o compresses the spring 22a, and then the spring 22a is pushed up to a
predetermined upper end position. The staple press-down portion 22 comes
into contact with the crown portion 10h of the staple 10, and thus the crown
portion 1 Oh presses the paper sheets P.
[0 1 091
15 In this way, in the penetrating mechanism 2 which pushes down the
staple 10 to penetrate the paper sheets P, the staple press-down portion 22
pushing down the crown portion 10h of the staple 10 is able to move in the
vertical direction in accordance with the moving direction of the penetrating
mechanism 2, and is urged downwardly by the spring 22a, thereby maintaining
20 the bending mechanism operating position M at a constant height, irrespective
of the number of the paper sheets P.
[OI 101
In the case where the staple press-down portion 22 is stationary, the
operating position of the bending mechanism is set to the minimum number of
25 paper sheets, and then the maximum number of paper sheets is stapled, the
penetrating mechanism is not lowered to the bending mechanism operating
position, so that the bending mechanism probably is not operated. Also, in the
case where the bending mechanism operating position is set to the maximum
number of sheets of paper sheets and then the minimum number of paper
30 sheets is stapled, the crown portion of the staple is not sufficiently pressed.
a
[OI 1 I ]
Whereas, since the staple press-down portion 22 is operated, the
penetrating mechanism is lowered to the bending mechanism operating position
M, irrespective of the number of paper sheets, and thus the crown portion 10h
5 of the staple 10 is sufficiently pressed to operate the bending mechanism 5.
[OI 121
FIG. 28 is a front view illustrating one example of the cuttinglforming
mechanism. FIG. 29 is a rear view illustrating one example of the
l o cuttinglforming mechanism. FIG. 30 is a perspective view of the
cuttinglforming mechanism when seen from a front. FIG. 31 is a perspective
view of the cuttinglforming mechanism when seen from a rear. The
configuration of the cuttinglforming mechanism 3 will now be described with
reference to each drawing.
15 [0113]
The cuttinglforming mechanism 3 is one example of a cuttinglforming
part, and includes a cutter plate 30 for cutting the
staple-materials-connecting-body IOa, and a forming plate 31 for forming the
staple material 10 cut by the cutter plate 30 to be the formed staple 10.
20 [0114]
The cutter plate 30 has two cutting blades 32, and first groove portions
30a, second groove portions 30b and convex portions 30c which are
transmitted with a driving force from the penetrating mechanism 2. The cutter
plate 30 is attached to the forming plate 31 in a vertically movable manner.
25 [0115]
The cutting blade 32 is one example of a connecting portion cutting blade,
and each cutting blade 32 is provided with a blade portion 32a which is inclined
to its tip end becoming the tip end. Each cutting blade 32 is attached to the
cutter plate 30 in a state in which the inclined blade portions 32a are faced
30 outwardly.
[OI 161
In each cutting blade 32, an interval between blade edges of the inclined
blade portions 32a conforms to an interval between the one pair of holes 10d of
the staple-materials-connecting-body 10a. Further, a length of the blade
5 portion 32a is set to be longer than that of the connecting portion 10c of the
staple-materials-connecting-body 1 Oa.
[OI 171
In the cuttinglforming mechanism 3, the cutting blade 32 is positioned at
the rear side of the forming plate 31, and at the retracted position in which the
l o cutter plate 30 is raised with respect to the forming plate 31, the cutting blade
32 is retracted from the forming plate 31, so that the cutting blade 32 is not
exposed. At the cutting position in which the cutter plate 30 is lowered with
respect to the forming plate 31, the cutting blade 32 protrudes from the forming
plate 31.
15 [0118]
The first groove portion 30a and the second groove portion 30b are
installed at a predetermined interval in a vertical direction along the moving
direction of the penetrating mechanism 2 and the cuttinglshaping mechanism 3.
The convex portions 30c protrude outwardly from both ends of the cutter plate
20 30 in the widthwise direction.
[OI 191
The first groove portion 30a and the second groove portion 30b are
formed in a desired shape so that the protruding pin 20c provided on the
penetrating mechanism 2 is fitted into the groove portions. A lower end side of
25 the first groove 30a is formed deeply as compared to an upper end side thereof.
In the state in which the protruding pin 20c is positioned at the lower end side
of the first groove portion 30a, substantially the entire protruding pin 20c is fitted
into the first groove portion 30a. Further, in the state in which the protruding
pin 20c is positioned at the upper end side of the first groove portion 30a, a
30 portion of the protruding pin 20c is fitted into the first groove portion 30a.
I
[OI 201
The second groove portion 30b is configured to have the same depth as
that of the lower end side of the first groove portion 30a, so that substantially
the entire protruding pin 20c is fitted into the second groove portion 30b.
5 [0121]
The forming plate 31 has a staple forming portion 33 for forming the
staple 10, and opening retaining members 34 for maintaining the shape of the
staple 10 formed by the staple forming portion 33. Also, the forming plate 31
has guide convex portions 31a for guiding the movement of the cuttinglforrning
lo mechanism 3, and guide groove portions 31 b for guiding the movement of the
penetrating mechanism 2 and the cuttinglshaping mechanism 3.
[O 1 221
The staple forming portion 33 is formed in such a way that a length of a
depth direction is substantially equal to a width of a short-side direction of the
15 staple 10. The staple forming portion 33 is provided with a convex opening
formed by combining an opening which is wider that the width of the staple of a
substantially straight type in the longitudinal direction, and an opening which is
slightly wider than the outer width of the crown portion 10h of the staple 10.
The receiving table 16 of the staple cartridge 11 illustrated in FIG. 12 or the like
20 protrudes into the opening of the staple forming portion 33 when the staple
cartridge 11 is mounted onto the stapler 1.
[0 1 231
The forming plate 31 is provided with one pair of opening retaining
members 34 opposite to each other below the staple forming portion 33. The
25 opening retaining members 34 are attached to the forming plate 31 in such a
way that they are rotatable around a shaft 34a. In association with the vertical
movement of the cuttinglforming mechanism 3, the opening retaining members
34 are rotated between a position which they are opposite to each other at an
interval substantially equal to the outer width of the one pair of leg portions 10i
30 of the staple 10 formed by the staple forming portion 33, and a position in which
they are opposite to each other at an interval wider than the outer width of the
one pair of leg portions 10i of the staple 10 formed by the staple forming
portion 33.
[0 1 241
5 The guide convex portions 31a protrude outwardly from both ends of the
forming plate 31 in the widthwise direction, and are engaged with the guide
grooves 82b which are provided at both sides of the body section 8 of the
stapler 1 in the widthwise direction and opened along the moving direction of
the cuttinglforming mechanism 3. The guide convex portions 31a are formed
lo in an elliptical shape which is formed by connecting two semicircles with a
straight line, to restrict a posture of the cuttinglforming mechanism 3 from being
changed in its rotating direction.
[0 1 251
The guide groove portions 31 b are formed by installing grooves, along
15 which the guide convex portions 20d provided on the penetrating mechanism 2
are movable, on the surface of the forming plate 31, which is opposite to the
penetrating mechanism 2, along the moving direction of the penetrating
mechanism 2 and the cuttinglforming mechanism 3. The convex portions 30c
provided on the cutter plate 30 protrude into the guide groove portions 31 b.
20 The guide convex portions 20d provided on the penetrating mechanism 2 abut
against the convex portions 30c, and thus the cutter plate 30 is pushed up with
respect to the forming plate 31 by the lifting movement of the penetrating
mechanism 2.
[0 1 261
25
FIGS. 32 to 36 are operation charts illustrating the exemplary operation of
the cuttinglforming mechanism. The process of cutting the staple material 1 Om
from the staple-materials-connecting-body 10a and forming the staple 10 will
now be described with reference to each drawing.
30 [0127]
b
As illustrated in FIG. 1 and so forth, as the staple cartridge 11 is mounted
in the cartridge receiving portion 81 of the stapler 1, the receiving table 16
I
I protrudes the staple forming portion 33 of the cuttinglforming mechanism 3.
[0 1 281
5 In the standby state, as illustrated in FIG. 32, the cutter plate 30 is
positioned at the retracted position lifted with respect to the forming plate 31,
and the cutting blade 32 is retracted from the forming plate 31, so that the
cutting blade 32 is not exposed to the staple forming portion 33.
[0 1 291
10 Further, the staple-materials-connecting-body 10a is conveyed to the
cuttinglforming mechanism 3, and the non-cut staple material 10m located at
the leading end of the staple-materials-connecting-body 10a is supported on the
receiving table 16 of the staple cartridge 11 by the staple holding portion 17 in
the held state.
15 [0130]
In the standby state of the cuttinglforming mechanism 3, since the cutting
blade 32 is not exposed to the staple forming portion 33, as illustrated in FIG. 6,
even though the staple cartridge 11 is disengaged from the stapler 1, the cutting
blade 32 is not exposed, thereby securing the high safety.
20 [0131]
In the cuttinglforming mechanism 3, the lowering movement of the
penetrating mechanism 2 which is moved down by the operation of the
operating handle 9 illustrated in FIG. 1 and so forth is transmitted to the cutter
plate 30 by engagement of the protruding pin 20c provided on the penetrating
25 mechanism 2 and the first groove portion 30a provided on the cutter plate 30.
[0 1 321
Accordingly, the cutter plate 30 is moved to the cutting position lowered
with respect to the forming plate 31, and as illustrated in FIG. 33, the cutting
blade 32 protrudes from the staple forming portion 33 of the forming plate 31.
30 When the cutting blade 32 protrudes into the staple forming portion 33, the
1)
connecting portion 10c between the non-cut staple material 10m located at the
I leading end and the next staple material 10m is cut by the cutting blade 32 at
the staple-materials-connecting-body I Oa supported by the receiving table 16.
[OI 331
5 FIG. 37 is an operation chart illustrating the operation of cutting the
staple-materials-connecting-body, and shows the cutting of the
staple-materials-connecting-body 10a by the cutting blade 32 in time series.
As illustrated in FIGS. 37(a) to 37(c), as the one pair of left and right cutting
blades 32 are lowered with respect to the staple-materials-connecting-body IOa,
lo the blade portion 32a of the tip end of each cutting blade 32 is inserted into the
hole 1 Od, and thus each connecting portion 10c is cut in the hole 10d.
[O 1 341
As the blade portions 32a each inclined outwardly are pushed to the one
pair of left and right connecting portions IOc, the force is respectively applied
15 the staple material 10m to be cut and the next staple material 10m in an
opposite direction from the inside to the outside along the longitudinal direction,
thereby cutting the connecting portion 10c. The inner portion of the connecting
portions 10c between the holes 10d is cut by the slit portion 10e in advance,
and it is not necessary to cut the center portion of the staple material 1 Om which
20 becomes a portion of the leg portion 10i and the crown portion 10h.
[OI 351
Accordingly, it is not necessary to support the staple material 10m to be
cut and the next staple material 10m in the wide range, and it is possible to cut
the staple material 10m with high precision by the simple configuration of
25 holding the staple with the staple holding portion 17.
[0 1 361
If the cutter plate 30 is moved to the cutting position, in association with
the lowering movement of the penetrating mechanism 2, the forming plate 31 is
lowered together with the cutter plate 30. If the forming plate 31 is lowered,
30 the portion, corresponding to the crown portion 1 Oh, of the cut staple material
10m located at the leading end, is supported by the receiving table 16, and as
illustrated in FIG. 34, the portions corresponding to the leg portions IOi start
bending in the first direction.
[O 1 371
5 If the forming plate 31 is further lowered, as illustrated in FIG. 35, the
staple material 10m located at the leading end is bent in the first direction so
that the one pair of leg portions 10i are substantially parallel to each other,
thereby forming the crown portion 10h and the leg portions 10i. Thus, the
staple 10 having the crown portion 10h and bent leg portions 10i is formed.
l o Also, as the forming plate 31 is lowered, in association with the bending
operation of the leg portions 10i of the staple material 1 Om in the first direction,
the opening retaining members 34 are rotated around the shaft 34a to be
opened.
[OI 381
15 After the forming of the staple 10 by the cuttinglforming mechanism 3 is
completed, the penetrating mechanism 2 is further lowered while the
cuttinglforming mechanism 3 is stationary, and thus the protruding pin 20c
provided on the penetrating mechanism 2 is away from the first groove portion
30a provided on the cutter plate 30 and is engaged into the second groove
20 portion 30b.
[0 1 391
In the cuttinglforming mechanism 3, the movement of the penetrating
mechanism 2 which is moved up by the upward returning movement of the
operating handle 9 is transmitted to the cutter plate 30 by the engagement of
25 the protruding pin 20c provided on the penetrating mechanism 2 and the
second groove portion 30b provided on the cutter plate 30.
[O 1 401
Accordingly, after the cutter plate 30 is moved to the retracted position
lifted with respect to the forming plate 31, the forming plate 31 is lifted together
30 with the cutter plate 30. If the forming plate 31 is lifted, the formed staple 10 is
withdrawn from the staple forming portion 33. Also, as the forming plate 31 is
lifted, the opening retaining members 34 are rotated around the shaft 34a to be
closed.
[OI 411
As the forming plate 31 is lifted, the leg portions 10i may be deformed in
the opening direction by the resilience of the material of the staple 10 while the
formed staple 10 is withdrawn from the staple forming portion 33. If the
interval between the opening retaining members 34 is constant, the opening
retaining members collide with the leg portions 10i deformed in the opening
direction, as the forming plate 31 is lifted.
[0 1 421
Since the opening retaining members 34 are able to be opened or closed
by the lifting movement of the forming plate 31, as illustrated in FIG. 36, when
the forming plate 31 is lifted and the formed staple 10 is withdrawn from the
staple forming portion 33, the opening retaining members 34 are lifted in the
open state to the outsides of the one pair of leg portions IOi, and thus the
opening retaining members 34 are closed, so that the leg portions 10i are
maintained in the state being bent in the first direction.
[O 1 431
Accordingly, there is no operation failure due to that the opening
retaining members 34 collide with the leg portions 10i of the staple 10 by the
lifting movement of the forming plate 31. The staple 10 formed in the desired
shape by the cuttinglforming mechanism 3 can be conveyed to the penetrating
mechanism 2.
[O 1 441
The configuration of the paper holding mechanism 4 will now be
described with reference to each drawing. The paper holding mechanism 4 is
one example of a paper holding part, and includes a paper holding plate 40 for
holding the paper sheets P placed in the paper placing base 80 illustrated in
FIG. 1 and so forth, and a spring 41 for biasing the paper holding plate 40.
Also, the paper holding mechanism 4 includes guide convex portions 42a for
guiding the movement of the paper holding plate 40, and guide groove portions
42b for guiding the movement of the penetrating mechanism 2 and the paper
5 holding mechanism 4.
[0 1 451
The guide convex portions 42a protrude outwardly from both ends of the
paper holding plate 40 in the widthwise direction, and are engaged with the
guide grooves 82c which are provided at both sides of the body section 8 of the
l o stapler 1 in the widthwise direction and opened along the moving direction of
the paper holding mechanism 4. The guide convex portions 42a are formed in
an elliptical shape which is formed by connecting two semicircles with a straight
line, to restrict a posture of the paper holding mechanism 4 from being changed
in its rotating direction.
15 [0146]
The guide groove portions 42b are formed by installing grooves, along
which the guide convex portions 20e provided on the penetrating mechanism 2
are movable, on the rear surface of the paper holding plate 40, which is
opposite to the penetrating mechanism 2, along the moving direction of the
20 penetrating mechanism 2 and the paper holding mechanism 4.
[0 1 471
In the paper holding mechanism 4, the guide convex portions 20e of the
penetrating mechanism 2 abut against the guide groove portions 42b to restrict
the movement of the paper holding plate 40, and in association with the
25 lowering movement of the penetrating mechanism 2, the paper holding plate 40
is urged downwardly by the spring 41, and thus protrudes into the paper placing
base 80 to hold the paper sheets P.
[0 1 481
The guide convex portions 20e of the penetrating mechanism 2 abut
30 against the guide groove portions 42b by the lifting movement of the penetrating
mechanism 2, and the paper holding plate 40 is pushed up by the lifting
movement of the penetrating mechanism 2, and thus is retracted from the paper
placing base 80.
[0 1 491
5
The configuration of the bending mechanism 5 for bending the leg
portions 10i of the staple 10 penetrating the paper sheets P will now be
described with reference to each drawing.
[0 1 501
10 The bending mechanism 5 is one example of a bending part, and
includes a first bending member 50R for bending the one leg portion 10i of the
staple 10 penetrating the paper sheets PI a second bending member 50L for
bending the other leg portion 10i of the staple 10 penetrating the paper sheets P,
and a bonding member 50s for bonding the one leg portion 10i and the other
15 leg portion 10i.
[OI 511
The first bending member 50R, the second bending member 50L, and
the bonding member 50s are provided to the body section 8, and are moved up
and down by rotating movement around a shaft 50a in this example.
20 [0152]
Also, the bending mechanism 5 includes a push-up member 51 for
pushing up the first bending member 50R, the second bending member 50L,
and the bonding member 50s. The push-up member 51 is provided to a base
portion 83, and by rotating movement of the body section 8 with respect to the
25 base portion 83, the first bending member 50R, the second bending member
50L, and the bonding member 50s are relatively pushed up in corporation with
the spring 51a.
[O 1 531
The bending mechanism 5 is configured so that, as the body section 8 is
30 rotated, the first bending member 50R is pushed up by the push-up member 51,
the second bending member 50L is pushed up, and then the bonding member
50s is pushed up. Further, in the process in which the first bending member
50R and the second bending member 50L are pushed up, an interval between
the first bending member 50R and the second bending member 50L is widened
5 outwardly, and then is narrowed inwardly.
[O 1 541
Also, the bending mechanism 5 includes ejecting members 52
performing the operation of inwardly bending the leg portions 10i of the staple
10 penetrating the paper sheets P, before the first bending member 50R and
10 the second bending member 50L start the operation of bending the leg portions
10i of the staple 10.
[O 1 551
The ejecting members 52 are urged by the spring 52b in accordance with
its rotating movement around the shaft 52a, and thus protrude inwardly from the
15 ejecting hole 21f provided in the cutting blade 21 to inwardly bend the leg
portions 10i of the staple 10 supported by the cutting blades 21.
[OI 561
Also, the bending mechanism 5 includes a clutch mechanism 53 for
restricting and releasing the rotating movement of the body section 8 with
20 respect to the base portion 83, and operating the ejecting member 52, in
association with the operation of the penetrating mechanism 2 lifted by
operation of the operating handle 9.
[OI 571
The clutch mechanism 53 has a slide member 54 transmitted with the
25 operation of the operating handle 9, a spring 55a for urging the slide member 54,
and a receiving member 55b abutting against the slide member 54 to restrict the
rotation of the body section 8.
[OI 581
The slide member 54 has a pin 54a engaged with the link 92 to which the
30 operation of the operating handle 9 is transmitted, a guide portion 54b for
operating the ejecting member 52, and an operating convex portion 54c for
operating cutting blade guide 23, and is attached to the body section 8 in a
horizontally sliding manner. The slide member 54 constitutes a guide driving
part for operating the cutting blade guide 23 in association with the operation of
5 the penetrating mechanism 2.
[O 1 591
As illustrated in FIG. 3, the link 92 connected to the operating handle 9 is
provided with an elongated slot 92b to which the pin 54a of the slide member 54
is engaged. In the displacement of the link 92 caused by the operating handle
lo 9 which is pushed down and then is rotated around the shaft 90, the driving
force is not transmitted to the pin 54a due to the shape of the elongated slot 92b,
until the operating handle 9 is pushed down to the predetermined position. As
a result, the slide member 54 is not displaced.
[0 1 601
15 If the operating handle 9 is pushed down to the predetermined position,
the pin 54a is pushed backward, and thus the slide member 54 is moved
backward. Also, in the displacement of the link 92 caused by the operating
handle 9 which is pushed up and then is rotated around the shaft 90, the slide
member 54 is urged by the spring 55a and thus is moved forward.
20 [0161]
The guide portion 54b has a guide surface abutting against the ejecting
member 52, as illustrated in FIG. 18, to open or close the ejecting member 52 in
accordance with the sliding movement of the slide member 54. The operating
convex portion 54c abuts against the cutting blade guide 23, as illustrated in
25 FIG. 1 and so forth, to move the cutting blade guide 23 forward and backward in
accordance with the sliding movement of the slide member 54.
[0 1 621
The operation of the operating handle 9 is transmitted to the clutch
mechanism 53 via the link 92, and the penetrating mechanism 2 penetrates the
30 paper sheets P by the operation of the operating handle 9. Simultaneously,
the slide member 54 is moved backward in accordance with the operation of the
cuttinglforming mechanism 3 cutting and forming the next staple material 10m.
[0 1 631
As the slide member 54 is moved back, the ejecting member 52 is
5 guided by the guide surface of the guide portion 54b and thus is rotated in the
closing direction. And, the ejecting member 52 protrudes into the ejecting hole
21f of the cutting blade 21 lowered to the predetermined position. Also, as the
slide member 54 is moved back, the cutting blade guide 23 is pushed down and
moved backward by the operating convex portion 54c, and thus is retracted
l o between the cutting blades 21.
[0 1 641
If the slide member 54 is moved to the predetermined release position to
be away from the receiving member 55b, the body section 8 is rotated by the
force of pushing down the operating handle 9.
15 [0165]
Accordingly, by the rotating movement of the body section 8, the first
bending member 50R is pushed up by the push-up member 51, the second
bending member 50L is pushed up, and then the bonding member 50s is
pushed up.
20 [0166]
If the operating handle 9 is pushed up, the body section 8 is rotated
upward, and the slide member 54 urged by the spring 55a is moved forward. If
the slide member 54 is moved forward, the ejecting member 52 is guided by the
guide surface of the guide portion 54b, and is rotated in the open direction to
25 move back outwardly from the ejecting hole 21f of the cutting blade 21. Also,
as the slide member 54 is moved forward, the cutting blade guide 23 is moved
forward while being urged by the spring 23a, so that the cutting blade guide
protrudes between the cutting blades 21.
[0 1 671
3 o
The conveying mechanism 6 for conveying the
staple-materials-connecting-body and the staple 10 cut and formed from the
staple-materials-connecting-body 10a will now be described with reference to
each drawing.
5 [0168]
The conveying mechanism 6 is one example of a conveying part, and
includes a pusher 60 for conveying the staple-materials-connecting-body and
the staple 10 cut and formed from the staple-materials-connecting-body IOa,
and a spring 60a for urging the pusher 60 forward.
l o [0169]
The pusher 60 has a feed claw 61 which is engaged with the hole 10d of
the staple-materials-connecting-body 10a to convey the
staple-materials-connecting-body 1 Oa, a staple pushing portion 62 for extruding
the staple 10 cut and formed from the staple-materials-connecting-body IOa,
1s and a pin 63 engaging with the link 92 to which the operation of the operating
handle 9 is transmitted.
[0 1 701
The link 92 connected with the operating handle 9 is provided with an
elongated slot 92a to which the pin 63 of the pusher 60 is engaged. In the
20 displacement of the link 92 caused by the operating handle 9 which is pushed
down and then is rotated around the shaft 90, the pin 63 is pushed backward,
and thus the pusher 60 is moved backward. Also, in the displacement of the
link 92 caused by the operating handle 9 which is pushed up and then is rotated
around the shaft 90, the pusher 60 is urged by the spring 60a and thus is
2 5 moved forward.
[OI 711
The pusher 60 is made of a resin material in this example, and is formed
integrally with the feed claw 61 and the staple pushing portion 62. The feed
claw 61 is provided on the upper surface of the pusher 60, and is installed at
30 two left and right positions corresponding to the one pair of holes 10d of the
staple-materials-connecting-body IOa, as illustrated in FIG. 6. As illustrated in
FIG. 1, if the staple cartridge 11 is mounted in the cartridge receiving portion 81
of the stapler 1, the feed claw 61 protrudes from the groove portion 14b formed
on the bottom surface of the staple conveying path 14.
5 [OI 721
In the feed claw 61, a front surface along the conveying direction of the
staple-materials-connecting-body 10a is substantially vertically formed as an
engaging surface 61a, and a rear. surface is formed in an inclined surface as a
non-engaging surface 61b. The feed claw 61 is formed integrally with the
l o pusher 60 by a support portion 61 extending backward from the rear surface
thereof.
[OI 731
Since the pusher 60 is made of the resin material, the support portion
61c of the feed claw 61 can be resiliently deformed, and the shape of the feed
1s claw 61 forms an evacuation part for appearing and disappearing the feed claw
61 through the hole 10d of the staple-materials-connecting-body 10a by the
horizontal movement of the pusher 60.
[O 1 741
That is, as the pusher 60 is moved forward, the engaging surface 61a of
20 the feed claw 61 is engaged with the hole 1Od of the
staple-materials-connecting-body 10a to convey the
staple-materials-connecting-body 10a forward. As the pusher 60 is moved
backward, the shape of the inclined surface of the non-engaging surface 61 b of
the feed claw 61 generates the force to push the feed claw 61 down, and thus
25 the feed claw 61 is moved backward from the hole 1Od of the
staple-materials-connecting-body 10a by the resilient deformation of the support
portion 61 c, so that the staple-materials-connecting-body 10a is maintained in
the stationary state.
[OI 751
3 o The staple pushing portion 62 is provided on the front surface of the
pusher 60, and as illustrated in FIG. 10, is configured to push the so-called
U-shaped formed staple 10 of which the leg portions 10i are formed at both
ends of the crown portion IOh.
[0 1 761
5 The staple pushing portion 62 protrudes into the cuttinglforming
mechanism 3 by the forward movement of the pusher 60 to convey the formed
staple 10 to the penetrating mechanism 2. Since the feed claw 61 and the
staple pushing portion 62 are formed integrally with the pusher 60, in
accordance with the forward movement of the pusher 60, the
l o staple-materials-connecting-body 1Oa is conveyed to the cuttinglforming
mechanism 3, and simultaneously, the staple 10 located at the leading end
which is cut and formed from the staple-materials-connecting-body 10a is
conveyed to the penetrating mechanism 2.
[O 1 771
15
FIG. 38 is a side sectional view of major parts of the stapler illustrating
one example of the attachingldetaching mechanism. It will now be described
the configuration of the attachingldetaching mechanism 7A for conveying the
staple-materials-connecting-body 10a received in the staple cartridge 11 to the
20 predetermined position in association with the conveying mechanism 6 when
the staple cartridge 11 is mounted.
[0 1 781
The attachingldetaching mechanism 7A is one example of an
attachingldetaching part, and includes an operating lever 70 and a link 71 for
25 transmitting the operation of the operating lever 70 to the conveying mechanism
6. The operating lever 70 is provided at a rear side of the cartridge receiving
portion 81 of the body section 8, and is rotated around a shaft 70a.
[0 1 791
The link 71 is one example of an operating force transmitting part, and
30 has a tip end side provided with an elongated slot 71a engaged with the pin 63
of the pusher 60, and a rear end side attached to the operating lever 70 in such
a manner that it can rotate around a shaft 71b. The elongated slot 71a
provided in the link 71 extends along the moving direction of the pusher 60 in
accordance with the operation of the operating handle 71, so that the
5 engagement of the pusher 60 and the link 71 does not interfere in the
movement of the pusher 60 by the operation of the operating handle 9.
[0 1 801
When the operating lever 70 is rotated backward around the shaft 70a,
the link 71 connected with the shaft 71 b is moved backward, and thus the pin
l o 63 of the pusher 60 is pushed backward, thereby moving the pusher 60
backward. Also, when the operating lever 70 is rotated forward around the
shaft 70a, the pusher 60 is urged by the spring 60a, and thus is moved forward.
[OI 811
15 FIGS. 39 to 42 are operation charts illustrating the exemplary operation of
the attachingldetaching mechanism. The exemplary operation of the
attachingldetaching mechanism 7A will now be described with reference to
each drawing. First, in the staple cartridge 11 is detached, as illustrated in FIG.
39, the operating lever 70 is positioned at an attachingldetaching position where
20 it is rotated backward around the shaft 70a. Accordingly, the link 71 connected
to the shaft 71b is moved backward, and thus the pin 63 of the pusher 60 is
pushed backward to move the pusher 60 backward, while compressing the
spring 60a.
[O 1 821
2 5 If the operating lever 70 is positioned at the attachingldetaching position,
the shaft 71 b of the link 71 connected to the operating lever 70 is positioned at
a lower position with respect to the shaft 70a of the operating lever 70. The
link 71 is applied by the forwardly urging force from the spring 60a of the pusher
60, but the operating lever 70 is not rotated forward from the positional relation
30 between the shaft 70a of the operating lever 70 and the shaft 71 b of the link 71,
and thus is maintained at the attachingldetaching position.
[0 1 831
As illustrated in FIG. 40, when the staple cartridge 11 is mounted in the
cartridge receiving portion 81 of the stapler 1, the feed claw 61 of the pusher 60
5 protrudes into the staple conveying path 14 of the stapler cartridge 11 illustrated
in FIG. 13, and is engaged with the hole 1Od of the
staple-materials-connecting-body 10a illustrated in FIG. 8.
[0 1 841
As illustrated in FIG. 41, if the staple cartridge 11 is mounted and the
l o operating lever 70 is rotated forward to move upwardly the shaft 71 b connected
to the operating lever 70 with respect to the shaft 70a of the operating lever 70,
the link 71 is able to move forward by the urging force of the spring 60a of the
pusher 60. Accordingly, as illustrated in FIG. 42, as the operating lever 70 is
rotated forward, the pusher 60 is moved forward. When the operating lever 70
15 is rotated by the mounting position illustrated in FIG. 38, the operating lever 70
is engaged with the staple cartridge 11, so that the staple cartridge 11 cannot
be detached without operating the operating lever 70.
[0 1 851
FIG. 43 is an operation chart illustrating an exemplary operation of
20 conveying the staple-materials-connecting-body by the operation of the
attachingldetaching mechanism. Since the feed claw 61 of the pusher 60 is
engaged with the hole 10d of the staple-materials-connecting-body IOa, if the
pusher 60 is moved forward, as illustrated in FIGS. 43(a) and 43(b), the
staple-materials-connecting-body 10a is moved forward.
25 [0186]
As illustrated in FIG. 38, if the operating lever 70 is rotated to the
mounting position, as illustrated in FIG. 43(c), the
staple-materials-connecting-body 10a is moved forward to the predetermined
standby position. In this example, the position in which the tip end of the
30 staple-materials-connecting-body 10a abuts against the cutting blade 21 of the
penetrating mechanism 2 is referred to as the standby position.
[OI 871
As illustrated and described in FIGS. 12 and 13, when the
staple-materials-connecting-body 10a is received in the staple cartridge 11, the
5 tip end of the staple-materials-connecting-body 10a abuts against the stopper
guide 15 to determine the tip end position of the
staple-materials-connecting-body 10a.
[0 1 881
The staple cartridge 11 is mounted in the stapler 1, and the
l o staple-materials-connecting-body 10a is moved forward to the determined
standby position by the operation of the attachingldetaching mechanism 7A.
Therefore, when the staple cartridge 11 is attached or detached, the position of
the staple-materials-connecting-body 10a can be reliably set to the determined
standby position by the operation of the operating lever 70.
15 [0189]
Further, when the staple cartridge 11 is removed, the operating lever 70
is rotated backward from the state illustrated in FIG. 38. If the pusher 60 is
moved backward by rotating the operating lever 70 rotating backward, the feed
claw 61 is moved backward from the hole 1Od of the
20 staple-materials-connecting-body 10a due to the shape of the feed claw 61, so
that the staple-materials-connecting-body 10a is maintained in the stationary
state.
[0 1 901
If the operating lever 70 is rotated to the attachingldetaching position
25 illustrated in FIG. 40, the staple cartridge 11 can be detached in the state in
which the operating lever 70 is maintained in the attachingldetaching position.
[OI 911
When the staple cartridge 11 is detached in the state in which the
staple-materials-connecting-body 10a is left due to jam or the like and the
30 pusher 60 is moved forward, the stapler cartridge 11 is detached in the state in
which the staple material lorn located at the leading end of the
staple-materials-connecting-body 10a and the feed claw 61 of the pusher 60 are
engaged, and the staple-materials-connecting-body 10a is withdrawn.
[OI 921
Whereas, this embodiment is configured so that the staple cartridge 11
cannot be detached without operating the operating lever 70. The pusher 60 is
moved backward by operating the operating lever 70, and then the feed claw 61
is moved backward, so that the engaged state of the staple material 10m
located at the leading end of the staple-materials-connecting-body 10a and the
feed claw 61 of the pusher 60 are released to detach the staple cartridge 11.
Therefore, it is possible to prevent the staple-materials-connecting-body 10a
from being withdrawn.
[O 1 931
FIG. 44 is a side sectional view of major parts of the stapler illustrating a
variation of the attachingldetaching mechanism. An attachingldetaching
mechanism 7B is one example of an attachingldetaching part, and includes an
operating lever 72 and the link 71 for transmitting the operation of the operating
lever 72 to the conveying mechanism 6. The operating lever 72 is provided at
the rear side of the cartridge receiving portion 81 of the body section 8, and is
rotated around a shaft 72a.
[O 1 941
Also, the operating lever 72 has an operating lever 72b which abuts
against an engaging convex portion I l a provided on the stapler cartridge 11 to
press the staple cartridge 11 by mounting the staple cartridge 11, and pushes
up the staple cartridge 11 by detaching the stapler cartridge 11.
[0 1 951
The link 71 has the tip end side provided with the elongated slot 71a
engaged with the pin 63 of the pusher 60, and the rear end side attached to the
operating lever 72 in such a manner that it can rotate around the shaft 71 b.
[0 1 961
When the operating lever 70 is rotated backward around the shaft 72a,
the link 71 connected with the shaft 71b is moved backward, and thus the pin
63 of the pusher 60 is pushed backward, thereby moving the pusher 60
backward. In the case where the staple cartridge 11 is mounted, the operating
lever 72b abuts against the engaging convex portion I I a of the staple cartridge
11 by rotating the operating lever 72 backward, thereby pushing the staple
cartridge I I up.
[O 1 971
Whereas, the operating lever 72b abuts against the engaging convex
portion I l a of the staple cartridge 11 by mounting the staple cartridge 11, and
thus the operating lever 72 is rotated forward around the shaft 72a. As a result,
the pusher 60 is urged by the spring 60a, and thus is moved forward.
[OI 981
FIGS. 45 to 47 are operation charts illustrating the exemplary operation of
the attachingldetaching mechanism according to the variation. The exemplary
operation of attachingldetaching mechanism 7B will now be described with
reference to each drawing. First, explaining the operation of detaching the
staple cartridge 11, as illustrated in FIG. 45, the operating lever 72 is rotated
backward from the mounting position illustrated in FIG. 44.
[0 1 991
If the pusher 60 is moved backward by rotating the operating lever 70
backward, the feed claw 61 is moved backward from a hole of the
staple-materials-connecting-body (not illustrated) due to the shape of the feed
claw 61, so that the staple-materials-connecting-body is maintained in the
stationary state.
[0200]
If the operating lever 72 is rotated to the position illustrated in FIG. 46,
the operating lever 72b abuts against the engaging convex portion I l a of the
staple cartridge 11. Since the operating lever 72 is rotated to the
I)
attachingldetaching position, as illustrated in FIG. 47, the stapler cartridge 11 is
pushed up. Accordingly, the stapler cartridge 11 can be easily detached.
Also, if the operating lever 72 is positioned at the attachingldetaching position,
the operating lever 72 is not rotated forward by the positional relation between
5 the shaft 72a of the operating lever 72 and the shaft 71 b of the link 71, thereby
being maintained at the attachingldetaching position.
[0201]
When the staple cartridge 11 is mounted, the staple cartridge 11 is
pushed down from the state illustrated in FIG. 47. Accordingly, the engaging
lo convex portion I l a of the staple cartridge 11 abuts against the operating lever
72b, and thus the operating lever 72 is rotated forward around the shaft 72a.
[0202]
If the operating lever 72 is rotated forward, and as illustrated in FIG. 46,
the shaft 71 b of the link connected to the operating lever 72 is moved up with
15 respect to the shaft 72a of the operating lever 72, the link 71 is moved forwardly
by the urging force of the spring 60a of the pusher 60.
[0203]
Accordingly, as illustrated in FIG. 45, the engaging convex portion I l a of
the staple cartridge 11 is detached from the operating lever 72b, the operating
20 lever 72 is rotated forward, and the pusher 60 is moved forward. As a result,
the operating lever 72 is rotated to the mounting position illustrated in FIG. 44,
and thus the staple-materials-connecting-body is conveyed to the determined
standby position.
102041
25
FIGs. 48 to 51 are operation charts illustrating the exemplary operation of
the operating handle. FIGs. 52 to 70 are operation charts illustrating the
exemplary operation of the entire stapler. FIGs. 71 to 89 are operation charts
illustrating the exemplary operation of the penetrating mechanism and the
30 bending mechanism. FIGs. 90 to 97 are operation charts illustrating the
@
exemplary operation of the cuttinglforming mechanism. The exemplary overall
operation of the entire stapler 1 according to this embodiment will now be
described with reference to each drawing.
[0205]
5
In the standby state illustrated in FIGS. 48, 52, 71, 90, and so forth, the
staple 10 located at the leading end which is cut and formed from the
staple-materials-connecting-body 1Oa is positioned in the penetrating
mechanism 2. Also, the next staple 10 (staple material 10m) of the
l o staple-materials-connecting-body 10a is positioned in the cuttinglforming
mechanism 3.
[0206]
The staple-materials-connecting-body 1 Oa conveyed to the
cuttinglforming mechanism 3 is conveyed to the determined standby position in
15 which it abuts against the cutting blade 21 of the penetrating mechanism 2 by
the operation of the above-described attachingldetaching mechanisms 7A and
7B. Also, in the cuttinglforming mechanism 3, the cutter plate 30 is positioned
at the retracted position raised with respect to the forming plate 31, and the
cutting blade 32 is not exposed.
20 [0207]
If the operating handle 9 is pushed in a downward direction indicated by
the arrow A from the standby state illustrated in FIG. 48, the link 92 connected
with the operating handle 9 at the coupling shaft portion 20b of the penetrating
25 mechanism 2 is rotated around the coupling shaft portion 20b in a direction
indicated by the arrow B. Accordingly, as illustrated in FIG. 53, the pusher 60
starts moving backward. As the pusher 60 is moved backward, as described
above, the feed claw 61 is spaced apart from the
staple-materials-connecting-body 1 Oa, and thus the
3 o staple-materials-connecting-body 10a is maintained in the stationary state.
[0208]
Further, as the operating handle 9 pushes the connecting shaft portion
20b down, the penetrating mechanism 2 starts lowering, and the paper holding
plate 40 of the paper holding mechanism 4 is urged by the spring 41, in
association with the operation of the penetrating mechanism 2, so that the
paper sheets P placed in the paper placing base 80 are held. In the
penetrating mechanism 2, as illustrated in FIG. 72, the blade portion 21a of the
cutting blade 21 pierces the paper sheets P. In the cuttinglforming mechanism
3, as illustrated in FIG. 91, the cutting blade 32 protrudes from the staple
forming portion 33 of the forming plate 31.
[0209]
If the operating handle 9 is pushed down at the position illustrated in FIG.
54, the retreating operation of the pusher 60 is continuously performed. In the
penetrating mechanism 2, as illustrated in FIG. 73, the first penetrating portion
21 b of the cutting blade 21 penetrates the paper sheets P. The one pair of
cutting blades 21 prevents the tip end side of the cutting blade 21 from being
inclined inwardly, while the cutting blade guide 23 protrudes inside the first
penetrating portion 21 b penetrating the paper sheets P.
[02 1 01
In the cuttinglforming mechanism 3, as illustrated in FIG. 92, the cutter
plate 30 and the forming plate 31 are lowered as one body, and as illustrated in
FIG. 37, the staple material 10m located at the leading end of the
staple-materials-connecting-body 10a is cut by the cutting blade 32. In
addition, the staple forming portion 33 of the forming plate 31 abuts against the
cut staple 10 to start the forming of the staple 10.
[021 I ]
If the operating handle 9 is pushed down at the position illustrated in FIG.
55, the retreating operation of the pusher 60 is continuously performed.
Further, as illustrated in FIG. 49, the elongated slot 92b of the link 92 abuts
against the pin 54a of the slide member 54, and thus, as illustrated in FIG. 55,
the retreat of the slide member 54 starts.
[02 1 21
5 In the penetrating mechanism 2, as illustrated in FIG. 74, the first
penetrating portion 21 b of the cutting blade 21 penetrates the paper sheets P.
In the cuttinglforming mechanism 3, as illustrated in FIG. 93, the leg portions 10i
of the staple 10 are gradually bend by the staple forming portion 33.
[02 1 31
l o
If the operating handle 9 is pushed down at the position illustrated in FIG.
56, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the penetrating mechanism 2, as illustrated in FIGS.
21 and 75, the hole expansion portion 21e of the cutting blade 21 arrives at the
15 paper sheets P, and the hole PI opened in the paper sheets P is winded in the
outward direction. The forming of the staple by the cuttinglforming mechanism
3 is continuously performed, which is not illustrated.
[02 1 41
2 o If the operating handle 9 is pushed down at the position illustrated in FIG.
57, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the penetrating mechanism 2, as illustrated in FIG.
76, the hole expansion portion 21e of the cutting blade 21 penetrates the paper
sheets P. In the cuttinglforming mechanism 3, as illustrated in FIG. 94, as the
25 cutter plate 30 and the forming plate 31 are lowered, the opening retaining
members 34 abut against open cam surfaces 84a formed on the body section 8,
and thus starts opening outwardly.
[02 1 51
3 o If the operating handle 9 is pushed down at the position illustrated in FIG.
58, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the penetrating mechanism 2, as illustrated in FIG.
77, the second penetrating portion 21c of the cutting blade 21 penetrates the
paper sheets P, and thus the staple 10 held inside the cutting blades 21 starts
penetrating the paper sheets P.
[02 1 61
In the cuttinglforming mechanism 3, as illustrated in FIGS. 35 and 95, as
the cutter plate 30 and the forming plate 31 are lowered, the staple 10 is bent in
the first direction so that the one pair of leg portions 10i are substantially parallel
to each other, thereby forming the crown portion 10h and the leg portions 10i.
As a result, the forming is terminated. Also, opening retaining members 34 are
opened, and then the operation is terminated.
102 1 71
If the operating handle 9 is pushed down at the position illustrated in FIG.
59, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed, and the operating convex portion 54c of the slide
member 54 abuts against the cutting blade guide 23. The spring 23a is
compressed, and the cutting blade guide 23 starts retreating.
[02 1 81
In the penetrating mechanism 2, as illustrated in FIG. 78, the second
penetrating portion 21c of the cutting blade 21 penetrates the paper sheets P,
and the staple 10 held inside the cutting blades 21 penetrates the paper sheets
P. The tip end of each cutting blade 21 is guided by the first bending member
50R and the second bending member 50L. As a result, even though the
cutting blade guide 23 is retreated, the displacement in the inclining direction is
suppressed. The cuttinglforming mechanism 3 is lowered, and thus is not
operated.
[02 1 91
I,
If the operating handle 9 is pushed down at the position illustrated in FIG.
60, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed, and is guided by the guide surface of the guide portion
54b of the slide member 54. As a result, as illustrated in FIG. 79, the ejecting
5 members 52 start closing in the inward direction. In the penetrating
mechanism 2, as illustrated in FIG. 79, the second penetrating portion 21c of
the cutting blade 21 penetrates the paper sheets P, and thus the staple 10 held
inside the cutting blades 21 penetrate the paper sheets P.
[0220]
10
If the operating handle 9 is pushed down at the position illustrated in FIG.
61, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed, and is guided by the guide surface of the guide portion
54b of the slide member 54. As a result, as illustrated in FIG. 80, the ejecting
1s members 52 are closed in the inward direction, and protrude into the ejecting
hole 21f of the cutting blade 21 lowered at the predetermined position.
[0221]
In the penetrating mechanism 2, as illustrated in FIG. 80, the second
penetrating portion 21c of the cutting blade 21 penetrates the paper sheets P.
20 In association with the penetrating operation of the staple 10 held inside the
cutting blades 21 into the paper sheets P, the one pair of leg portions 10i of the
staple 10 are bent in the inward direction by the ejecting member 52 protruding
into the ejecting hole 21f.
[0222]
25
If the operating handle 9 is pushed down at the position illustrated in FIG.
62, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the penetrating mechanism 2, as illustrated in FIG.
81, the staple press-down portion 22 lands on the paper sheets P.
30 [0223]
If the operating handle 9 is pushed down at the position illustrated in
FIGs. 50 and 63, the retreating operation of the pusher 60 and the slide
member 54 is continuously performed, and the slide member 54 is retreated to
a determined release position. The slide member 54 is spaced apart from the
receiving member 55b, which is referred to as clutch disengagement.
[0224]
The penetrating mechanism 2 is lowered to the bending mechanism
operating position M, as illustrated in FIGs. 26, 27, and 82, and the crown
portion 10h of the staple 10 is stapled by the staple press-down portion 22 to
press the paper sheets P.
[0225]
If the operating handle 9 is pushed down at the position illustrated in FIG.
64, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the bending mechanism 5, as illustrated in FIGs.
64 and 83, the body section 8 is rotated, which is indicated by the arrow C, by
the pushing force of the operating handle 9. As the body section 8 is rotated,
the first bending member 50R, the second bending member 50L, and the
bonding member 40s start pushing up by the push-up member 51, and the
operating of bending the leg portions 10i of the staple which is referred to as
clinch is started.
[0226]
If the operating handle 9 is pushed down at the position illustrated in FIG.
65, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the bending mechanism 5, as illustrated in FIGs.
65 and 84, the body section 8 is rotated downwardly, which is indicated by the
arrow C, by the pushing force of the operating handle 9. The first bending
member 50R is pushed up by the push-up member 51, so that the right leg 10i
a
of the staple 10 is bent.
[0227]
The leg portion 10i of the staple 10 is bent inwardly at a desired amount
by the ejecting member 52. As the first bending member 50R is rotated
5 upwardly, since the first bending member 50R is pushed up while being
displaced in an external direction, the first bending member reliably enters the
outside of the right leg portion 10i of the staple 10, so that the leg portion 10i is
i bent.
l o
If the operating handle 9 is pushed down at the position illustrated in FIG.
66, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the bending mechanism 5, as illustrated in FIGs.
65 and 85, the body section 8 is rotated downwardly, which is indicated by the
15 arrow C, by the pushing force of the operating handle 9. The first bending
member 50R is pushed up by the push-up member 51, so that the right leg 10i
of the staple 10 is bent.
[0229]
As the second bending member 50L is pushed up by the push-up
20 member 51, the left leg portion 10i of the staple 10 is bent. As the second
bending member 50L is rotated upwardly, since the second bending member
50L is pushed up while being displaced in the external direction, the second
bending member reliably enters the outside of the left leg portion 10i of the
staple 10, so that the leg portion 10i is bent.
25 [0230]
If the operating handle 9 is pushed down at the position illustrated in FIG.
67, the retreating operation of the pusher 60 and the slide member 54 is
continuously performed. In the bending mechanism 5, as illustrated in FIGs.
30 67 and 86, the body section 8 is rotated downwardly, which is indicated by the
I)
arrow C, by the pushing force of the operating handle 9. The second bending
member 50L is pushed up by the push-up member 51, so that the bending of
the left leg 10i of the staple 10 is terminated.
[0231]
5
If the operating handle 9 is pushed down at the position illustrated in
FIGs. 51 and 68, the retreating operation of the pusher 60 and the slide
member 54 is continuously performed. In the bending mechanism 5, as
illustrated in FIGs. 68 and 87, the body section 8 is rotated downwardly, which
l o is indicated by the arrow C, by the pushing force of the operating handle 9.
The bonding member 50s is pushed up by the push-up member 51, so that the
one pair of overlapped leg portions IOi of the staple are pressed adjacent to the
center portion thereof. Accordingly, as illustrated in FIG. 11, the one pair of leg
portions 10i are bonded at the bonding portion 1 Of, and the clinch is terminated.
15 [0232]
If the operating handle 9 is pushed up after the clinch is terminated, the
body section 8 is rotated upwardly, and as illustrated in FIG. 69, the slide
member 54 is moved forward, and runs up onto the receiving member 55b.
20 Further, in association with the advance of the slide member 54, the cutting
blade guide 23 is moved forward between the cutting blades while being urged
by the spring 23a, and simultaneously, the ejecting member 52 is moved
backward outwardly from the cutting blade 21, as illustrated in FIG. 88. In
addition, the pusher 60 is moved forward. As described above, the feed claw
25 61 is engaged with the staple-materials-connecting-body 1Oa to start
conveyance of the staple-materials-connecting-body 10a forward, by the
advancing movement of the pusher 60.
[0233]
In the penetrating mechanism 2, as illustrated in FIG. 88, the cutting
30 blades 21 are moved up in a direction to be withdrawn from the paper sheets P.
In the cuttinglforming mechanism 3, as illustrated in FIG. 96, in association
with the operation of the penetrating mechanism 2, after the cutter plate 30 is
moved to the retreat position lifted with respect to the forming plate 31, the
forming plate 31 is moved up together with the cutter plate 30. If the forming
plate 31 is moved up, the formed staple 10 starts withdrawing from the staple
forming portion 33.
[0234]
Further, as the cutter plate 30 and the forming plate 31 are moved up,
the opening retaining members 34 abut against a close cam surface 84b formed
on the body section 8 to start closing in the inward direction.
[0235]
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 418-del-2013-Form-3-(03-07-2013).pdf | 2013-07-03 |
| 2 | 418-del-2013-Correspondence-Others-(03-07-2013).pdf | 2013-07-03 |
| 3 | 418-del-2013-GPA.pdf | 2013-08-20 |
| 4 | 418-del-2013-Form-5.pdf | 2013-08-20 |
| 5 | 418-del-2013-Form-3.pdf | 2013-08-20 |
| 6 | 418-del-2013-Form-2.pdf | 2013-08-20 |
| 7 | 418-del-2013-Form-1.pdf | 2013-08-20 |
| 8 | 418-del-2013-Drawings.pdf | 2013-08-20 |
| 9 | 418-del-2013-Description(Complete).pdf | 2013-08-20 |
| 10 | 418-del-2013-Correspondence-others.pdf | 2013-08-20 |
| 11 | 418-del-2013-Claims.pdf | 2013-08-20 |
| 12 | 418-del-2013-Abstract.pdf | 2013-08-20 |
| 13 | 418-del-2013-Correspondence-Others-(17-04-2014).pdf | 2014-04-17 |
| 14 | Petition 137 418del2013.pdf | 2014-04-21 |
| 15 | 418-DEL-2013-FER.pdf | 2019-04-09 |
| 16 | 418-DEL-2013-FORM 3 [24-06-2019(online)].pdf | 2019-06-24 |
| 17 | 418-DEL-2013-FER_SER_REPLY [24-06-2019(online)].pdf | 2019-06-24 |
| 18 | 418-DEL-2013-CORRESPONDENCE [24-06-2019(online)].pdf | 2019-06-24 |
| 19 | 418-DEL-2013-COMPLETE SPECIFICATION [24-06-2019(online)].pdf | 2019-06-24 |
| 20 | 418-DEL-2013-CLAIMS [24-06-2019(online)].pdf | 2019-06-24 |
| 21 | 418-DEL-2013-ABSTRACT [24-06-2019(online)].pdf | 2019-06-24 |
| 22 | 418-DEL-2013-Power of Attorney-250619.pdf | 2019-07-05 |
| 23 | 418-DEL-2013-Correspondence-250619.pdf | 2019-07-05 |
| 24 | 418-DEL-2013-PatentCertificate12-01-2021.pdf | 2021-01-12 |
| 25 | 418-del-2013-Correspondence-Others-(03-07-2013).pdf | 2013-07-03 |
| 25 | 418-DEL-2013-IntimationOfGrant12-01-2021.pdf | 2021-01-12 |
| 26 | 418-del-2013-Form-3-(03-07-2013).pdf | 2013-07-03 |
| 26 | 418-DEL-2013-RELEVANT DOCUMENTS [23-09-2022(online)].pdf | 2022-09-23 |
Search Strategy
| 1 | searchstrategy_30-11-2018.pdf |