DESCRIPTION TITLE OF THE INVENTION: ELEVATOR
TECHNICAL FIELD
[0001]
The present invention relates to an elevator in which a controlling board is installed on a landing, and particularly relates to a vertical frame construction of a doorframe to which the controlling board is mounted.
BACKGROUND ART
[0002]
Conventionally, elevators include '■ a car that is disposed hoistably inside a hoistway; a driving apparatus that drives hoisting of the car; and a controlling board that controls operation of the driving apparatus, the driving apparatus and the controlling board being installed inside a machine room that is formed in an upper portion of the hoistway. Because the driving apparatus and the controlling board occupy most of the space in the machine room, demand for space saving in the machine room cannot be adequately accommodated, and this has been a significant obstacle to building design.
[0003]
In consideration of such conditions, elevators have been proposed that attempt to save space in a machine room by removing the controlling board from the machine room, and installing it on a hoistway wall in a vicinity of a doorway of a landing, between the hoistway wall and a vertical stanchion that constitutes part of a landing doorway, or inside a door pocket of a doorframe that constitutes part of a landing doorway, etc., to facilitate building design (see Patent Literature 1 and 2, for example).

CITATION LIST PATENT LITERATURE
[0004]
Patent Literature 1- Japanese Patent Laid"Open No. SHO 59-163270 (Gazette)
Patent Literature 2- Japanese Patent Laid-Open No. 2000-128446 (Gazette)
SUMMARY OF THE INVENTION
PROBLEM TO BE SOLVED BY THE INVENTION
[0005]
If the controlling board is installed on the hoistway wall in the vicinity of a doorway of a landing, then the fixed position of the controlling board may vary depending on a hoistway wall finishing thickness or a floor finishing thickness. It is also necessary to drill wiring apertures in the hoistway wall. Thus, because a fixing bracket that allows for fluctuations in the finish of the wall is required, and additional wiring aperture drilling work is required on the hoistway wall, one problem has been that installation work for the controlling board is complicated.
[0006]
Furthermore, if the controlling board is installed between the hoistway wall and a vertical stanchion that constitutes part of a landing doorway, or inside a door pocket of a doorframe that constitutes part of a landing doorway, then because it is necessary to install the controlling board simultaneously when installing the doorframe, one problem has been that the controlling board may become more likely to fail under the influence of dust from the construction work on the building.
[0007]

The present invention aims to solve the above problems and an object of the present invention is to provide an elevator that simplifies an installation operation for a controlling board, and that suppresses occurrence of failure of the controlling board that results from dust from building construction work, by configuring a vertical stanchion of a doorframe so as to expose a controlling board mounting surface on a landing side to enable an installation operation for the doorframe and the installation operation for the controlling board to be performed separately.
MEANS FOR SOLVING THE PROBLEM
[0008]
An elevator according to the present invention includes^ a doorframe that has a portal shape in which an upper portion horizontal frame is mounted onto and linked to upper ends of a first vertical stanchion and a second vertical stanchion that are arranged so as to have longitudinal directions oriented vertically so as to be parallel and spaced apart from each other, the doorframe being installed in an opening portion that is formed in a hoistway wall; and a controlling board that controls operation of the elevator. The first vertical frame includes: a flat rectangular base portion! a first bend portion that is bent toward a front surface side from a first long side edge portion of the base portion! and a second bend portion that is bent toward a rear surface side from a second long side edge portion of the base portion, the first vertical stanchion being disposed so as to stand in the opening portion by fixing the first bend portion to the hoistway wall so as to be disposed such that the second bend portion faces toward a hoistway and the second vertical stanchion, a side surface plate is mounted to the second long side edge portion on a front surface of the base portion so as to extend from an upper end to a lower end of the base portion, the controlling board is mounted to the front surface of the base portion, and is

housed inside a space that is formed by the first vertical stanchion and the side surface plate, and a cover is mounted to the first vertical stanchion so as to enable opening and closing of the space.
EFFECTS OF THE INVENTION
[0009]
According to the present invention, because a front surface of a base portion to which a controlling board is mounted is exposed on a side near a landing when a doorframe is installed in an opening portion, an installation operation for the doorframe and an installation operation for the controlling board can be performed separately. Thus, the controlling board can be installed without being showered in dust, after completion of building construction work that generates dust such as installation of the doorframe, enabling the occurrence of failure of the controlling board that results from dust to be suppressed.
[0010]
Because the controlling board is mounted to the first vertical stanchion, the fixing position of the controlling board is unaffected by the finishing thickness of the hoistway wall 3 or the floor finishing thickness, enabling a wiring aperture also to be formed on the base portion easily. Thus, because a fixing bracket that allows for fluctuations in the finish of the wall is no longer required, and additional wiring aperture drilling work into the hoistway wall is unnecessary, the installation operation for the controlling board is facilitated.
BRIEF DESCRIPTION OF THE DRAWINGS [0011]
Figure 1 is a front elevation that shows an elevator landing according to Embodiment 1 of the present invention;

Figure 2 is a cross section that is taken along Line II - II in Figure 1 so as to be viewed in the direction of the arrows!
Figure 3 is a lateral cross section that shows an elevator landing according to Embodiment 2 of the present invention; and
Figure 4 is a lateral cross section that shows an elevator landing according to Embodiment 3 of the present invention.
DESCRIPTION OF EMBODIMENTS
[0012] Embodiment 1
Figure 1 is a front elevation that shows an elevator landing according to Embodiment 1 of the present invention, and Figure 2 is a cross section that is taken along Line II • II in Figure 1 so as to be viewed in the direction of the arrows.
[0013]
In Figures 1 and 2, a car 2 is disposed so as to be movable vertically inside a hoistway 1 that is surrounded by a hoistway wall 3. Although not shown, a hoisting machine is installed in a machine room that is configured in an upper portion of the hoistway 1, and the car 2 is linked to a rope that is wound around a sheave of the hoisting machine. The rope moves due to driving of the hoisting machine such that the car 3 ascends and descends through the hoistway 1.
[0014]
The doorframe 7 has a portal shape in which an upper portion horizontal frame 10 is mounted onto and linked to upper ends of first and second vertical frames 8 and 9 that are arranged so as to have longitudinal directions oriented vertically so as to be parallel and spaced apart from each other, and is installed in an opening portion 5 that constitutes a doorway of an elevator landing 4. A landing door 6 is suspended by a door hanger (not

shown) on a door rail (not shown) that is installed on an upper portion of the opening portion 5 on a side of the hoistway wall 3 near the hoistway 1, and is disposed so as to enable opening and closing of the opening portion 5. A controlling board 11 that controls operation of the hoisting machine is disposed on the first vertical stanchion 8. A landing-side operating panel 12 is also disposed on the second vertical stanchion 9.
[0015]
Here, the first vertical stanchion 8 is formed so as to have a crank shape by folding over vicinities of two long side edge portions of a flat rectangular steel plate in opposite directions.
[0016]
Specifically, the first vertical stanchion 8 includes: a flat rectangular base portion 8aJ a first bend portion 8b that is formed so as to have a U shape by being folded over twice perpendicularly from a first long side edge portion of the base portion 8a toward a front surface side; and a second bend portion 8c that is formed so as to have a U shape by being folded over twice perpendicularly from a second long side edge portion of the base portion 8a toward a rear surface side. A controlling board mounting bracket 18 is mounted to a front surface of the base portion 8a. A controlling cable fixing bracket 19 that is formed by bending so as to have an L shape is mounted to a rear surface of the base portion 8a.
[0017]
A side surface plate 16 is formed so as to have a U shape by folding over a vicinity of two long side edge portions of a flat rectangular steel plate that has a length that is similar or identical to that of the first vertical stanchion 8 perpendicularly in identical directions. The side surface plate 16 is disposed so as to extend from a first end to a second end in a longitudinal direction of the base portion 8a on the second long side edge portion of the front surface of the base portion 8a such that an opening of

the U shape is directed toward the first bend portion 8b, and is fixed to the base portion 8a by screws, rivets, adhesive, welding, etc. A cover 17 is produced using a flat rectangular steel plate that has a size that enables closing of an opening between the first bend portion 8b and the side surface plate 16, and is mounted to the first vertical stanchion 8 such that a first long side is linked to the first bend portion 8b by means of a hinge (not shown) so as to enable opening and closing of the opening between the first bend portion 8b and the side surface plate 16.
[0018]
The first vertical stanchion 8 that is configured in this manner is disposed so as to stand on a first side inside the opening portion 5 by fixing the first bend portion 8b to the hoistway wall 3 such that the second bend portion 8c is oriented toward the hoistway 1 and toward the second vertical stanchion 9. Then, the side surface plate 16 is mounted to the first vertical stanchion 8. Here, the controlling board mounting surface, which is a front surface of the base portion 8a, is exposed on side near the landing 4. Then the controlling board 11 is fixed to the controlling board mounting bracket 18 from the side near the landing 4. The controlling cable 13 is suspended from a lower portion of the car 2, is turned around in a drooping curve portion and led upward, is fixed to the controlling cable fixing bracket 19, is led out to the side near the landing 4 through a wiring aperture 21 that has been opened through the base portion 8a, and is connected to the controlling board 11. A portion of the controlling cable 13 is connected by a first end to the hoisting machine and is lowered along an inner wall surface of the hoistway 1, is fixed to the controlling cable fixing bracket 19, is led out to the side near the landing 4 through the wiring aperture 21 that has been opened through the base portion 8a, and is connected to the controlling board 11. Next, the cover 17 is mounted from the side near the landing 4

so as to close the opening between the first bend portion 8b and the side surface plate 16.
[0019]
In Embodiment 1, a controlling board housing space 14 that is formed by the base portion 8a, the first bend portion 8b, and the side surface plate 16 has an opening on the side near the landing 4. Thus, the controlling board 11 can be mounted to the base portion 8a of the first vertical stanchion 8 after installing the doorframe 7 on the opening portion 5.
[0020]
Because the installation operation for the doorframe 7 and the installation operation for the controlling board 11 can thereby be pei"formed separately, the controlling board 11 can be installed without being showered in dust, after completion of building construction work that generates dust such as installation of the doorframe 7. Thus, the occurrence of failure of the controlling board 11 that results from dust can be suppressed.
[0021]
Because the controlling board 11 is mounted to the base portion 8a of the first vertical stanchion 8, the mounted position of the controlling board 11 is unaffected by variations in the finishing thickness of the hoistway wall 3 or the floor finishing thickness. In addition, a wiring aperture 21 need only be drilled in the first vertical stanchion 8, making complicated wiring aperture drilling work into the hoistway wall 3 unnecessary. Thus, installation of the controlling board 11 is facilitated.
[0022]
Because the doorframe 7 can be set in place and the landing door 6 installed before the installation operation for the controlling board 11, the opening portion 5 is closed during the installation operation for the

controlling board 11, improving safety of the installation operation for the controlling board 11. Because the opening portion 5 can be closed by setting the doorframe 7 in place and installing the landing door 6, building finishing can be performed side by side with the elevator construction work, enabling shortening of work time for building construction work to be achieved.
[0023]
Because the controlling board 11 is moved from a machine room in an upper portion of the hoistway 1 to the landing 4, labor saving in the installation operation for the controlling cable 13 can be achieved.
Because the cover 17 is mounted to the first vertical stanchion 8 so as to enable opening and closing of the controlling board housing space 14, maintenance work on the controlling board 11 is facilitated.
[0024]
Moreover, in Embodiment 1 above, first and second bend portions are produced so as to have U shapes, but first and second bend portions may be produced so as to have L shapes.
In Embodiment 1 above, a cover is linked to a first bend portion by means of a hinge, but a cover may be linked to a side surface plate by means of a hinge, or may be fastened to a first bend portion and a side surface plate by screws.
[0025]
In Embodiment 1 above, a side surface plate is mounted to a first vertical stanchion and then a controlling board is mounted to the first vertical stanchion, but the side surface plate may be mounted to the first vertical stanchion after the controlling board is mounted to the first vertical stanchion.
In Embodiment 1 above, a controlling board is mounted to the first vertical stanchion and then a cover is mounted to a first vertical stanchion,

but the cover may be mounted to the first vertical stanchion, and then the controlling board may be mounted to the first vertical stanchion by opening the cover.
[0026] Embodiment 2
Figure 3 is a lateral cross section that shows an elevator landing according to Embodiment 2 of the present invention.
[0027]
In Figure 3, a side surface plate 16 is joined to and integrated with a base portion 8a of a first vertical stanchion 8A by welding, etc.
Moreover, a remainder of the configuration is formed in a similar or identical manner to that of Embodiment 1 above.
[0028]
Similar or identical effects to those in Embodiment 1 above can also be achieved in Embodiment 2.
According to Embodiment 2, because the side surface plate 16 is formed integrally on the first vertical stanchion 8A in advance, an operation for mounting the side surface plate 16 is no longer required at the site, enabling reductions in costs of the installation operation for the controlling board 11 to be achieved.
[0029] Embodiment 3
Figure 4 is a lateral cross section that shows an elevator landing according to Embodiment 3 of the present invention.
[0030]
In Figure 4, a controlling cable fixing bracket 19A is formed so as to have a C shape by folding over vicinities of two long side edge portions of a flat rectangular steel plate perpendicularly in identical directions, and additionally bending and folding vicinities of tips of the folded-over

segments perpendicularly inward. This controlling cable fixing bracket 19A is mounted to a base portion 8a of a first vertical stanchion 8 such that an opening of the C shape is oriented toward a rear surface of the base portion 8a so as to position a wiring aperture 21 that is drilled through the base portion 8a inside the opening of the C shape. A controlling cable 13 is fixed to the controlling cable fixing bracket 19A, passes through the controlling cable fixing bracket 19A, is led out through the wiring aperture 21 to a side near a landing, and is connected to a controlling board 11. A cover 20 includes a U-shaped bend portion 20a that is formed by folding over a vicinity of a second long side edge portion of a flat rectangular steel plate twice perpendicularly toward a rear surface side. A cover 20 is mounted to the first vertical stanchion 8 so as to be able to be open and close by linking a vicinity of a first long side thereof to a first bend portion 8b by means of a hinge (not shown).
Moreover, a remainder of the configuration is formed in a similar or identical manner to that of Embodiment 1 above.
[0031]
In Embodiment 3, because the bend portion 20a that is formed integrally on the cover 20 corresponds to a side surface plate 16, similar effects to those in Embodiment 1 above can be achieved.
According to Embodiment 3, because the side surface plate 16 is no longer required, an operation for mounting the side surface plate 16 is no longer required at the site, enabling reductions in costs of the installation operation for the controlling board 11 to be achieved.
Because the controlling cable fixing bracket 19A that is formed so as to have a C shape is mounted to the base portion 8a such that the opening of the C shape is oriented toward a rear surface of the base portion 8a so as to cover a wiring aperture 21, ejection of flames through the wiring aperture

21 is suppressed during an outbreak of fire inside the hoistway 1, improving" fire performance.

CLAIMS:
1. An elevator comprising:
a doorframe that has a portal shape in which an upper portion horizontal frame is mounted onto and linked to upper ends of a first vertical stanchion and a second vertical stanchion that are arranged so as to have longitudinal directions oriented vertically so as to be parallel and spaced apart from each other, said doorframe being installed in an opening portion that is formed in a hoistway wall; and
a controlling board that controls operation of said elevator,
wherein:
said first vertical frame comprises:
a flat rectangular base portion;
a first bend portion that is bent toward a front surface side from a first long side edge portion of said base portion; and
a second bend portion that is bent toward a rear surface side from a second long side edge portion of said base portion, said first vertical stanchion being disposed so as to stand in said opening portion by fixing said first bend portion to said hoistway wall so as to be disposed such that said second bend portion faces toward a hoistway and said second vertical stanchion;
a side surface plate is mounted to said second long side edge portion on a front surface of said base portion so as to extend from an upper end to a lower end of said base portion;
said controlling board is mounted to said front surface of said base portion, and is housed inside a space that is formed by said first vertical stanchion and said side surface plate; and
a cover is mounted to said first vertical stanchion so as to enable opening and closing of said space.

2. The elevator according to Claim 1, wherein said side surface plate is formed integrally on said first vertical stanchion.
3. The elevator according to Claim 1, wherein said side surface plate is formed integrally on said cover.
4. The elevator according to any one of Claims 1 through 3, wherein a controlling cable fixing bracket is mounted to said rear surface of said base portion, and a controlling cable is fixed to said controlling cable fixing bracket.
5. The elevator according to Claim 4, wherein said controlling cable fixing bracket is formed so as to have a U-shaped or C-shaped cross section, and is mounted to said base portion such that an opening of said U-shaped or C-shaped cross section is oriented toward said base portion and such that a wiring aperture through which said controlling cable is passed is positioned inside said opening of said U-shaped or C-shaped cross section.