PLUG WIRE GUIDE
FIELD OF INVENTION: ·
[001] The present subje~t matter described herein, in general, relates to field of
electrical connector plugs, and in particularly relates to structure of plu·g wire
5 guide which can mount different types of wires, such as multi core flat wire and
multi core twisted wires in a single plug.
BACKGROUND AND PRIOR ART:
[002] Generally, in the electric plug connector, three pins, such as live, neutral,
earth are present. Further, the electric plug connector has wire guide which allows
10 only one type of wire to pass through it. Accordingly, two separate plugs are to be
required to mount two different types of wires, for example, multi core flat wire
and multi core twisted wire. It becomes very complex and difficult for the user to
select the correct plug for the correct wire. If the user uses the wrong plug for
wrong wire, it becomes a safety issues and can cause insulation failure.
15 [003] Further, if wrong plug is used for the wrong wire, wire is not properly
inserted in the casing of the plug and remains lose in the plug which can cause
short circuit in the plug. Furthermore, the wrong wires can easily come out from
the plug and become dangerous for the user or any other person in the proximity
of the wire. The wrong wire in the wrong plug can cause short circuit in the plug
20 due to lose mounting of the wire in the wrong plug.
[004] US patent No.: US4422706 (A) relates to an electrical plug and receptacle
assembly in which the number of different parts is minimized, characterized by,
the ·use of an identical insulator in both the plug housing and the receptacle
housing. The insulator has contact compartments adapted to mount either male or
25 female contacts. Both the male and female contacts include an integral cable
terminal. Additionally, the female contacts are segmented and include spring
means for biasing the female contacts into tight engagement with male contacts.
[005] Thus, in view of the above prior arts, it is clear that the available pin plugs
has common or single wire guide to guide all type of wires having different shape.
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Further, these wire guides don't provide proper fitment of the wire in the plug.
Accordingly, the wire remain lose in the plug which can cause short circuit in the
plug.
[006] Therefore it is desirable in the electric pin plug to mount both types of
5 wires. In order to mount both type of wires in the common plug, a plug wire guide
is required which can accommodate or mount both type of wires in a single plug.
In other words, to eliminate the issue of mounting two separate types of wires in
two different plugs, a plug wire guide is required which can·mount different type
of wires, such as multi core flat wire and multi core twisted wires in a single plug.
10 OBJECTS OF THE INVENTION:
[007] The principal objective of the present invention is to provide a plug wire
guide to mount different type of wires, such as multi core flat wire and multi core
twisted wires in a single plug.
[008] Another object of the present invention is to avoid requirement of separate
15 plugs for different types of wire.
[009] Yet another object of the present invention is to avoid chance of using
wrong Plug for wrong wire due to which sometimes the wires are not properly
inserted inside the casing and causes insulation failure.
SUMMARY OF THE INVENTION:
20 [0010] The present invention relates to a plug wire guide. The plug wire guide is
provided to mount different type of wires,· such as multi core flat wire and multi
core twisted wires in a single plug. The present plug wire guide has a keyhole type
profile into which different types of wire can be mounted. In the keyhole type
plug wire guide, upper round portion accommodates the multi core twisted wire
25 and lower flat portion accommodates the multi core flat wire. Further, the location
of the round portion and the flat portion may be in reversed direction.
[0011] In order to further understand the characteristics and technical contents of
the present subject matter, a description relating thereto will be made with
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reference to the accompanying drawings. However, the drawings are illustrative
only but not used to limit scope of the present subject matter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] It is to be noted, however, that the appended drawings illustrate only
typical embodiments of the present subject matter and an: Utt:n:fort: not to be
co11sid~red for limiting of its s_cope, forJhe inventiQn_ may admit to other equally.
effective embodiments. The detailed description is described with reference to the
accompanying figures. In the figures, the left-most digit(s) of a reference number
identifies the figure in which the reference number first appears. The same
10 numbers are used throughout the figures to reference · like features and
components. Some embodiments of system or methods in accordance with
embodiments of the present subject matter are now described, by way of example~·
and with reference to the accompanying figures, in which:
[0013] Fig. 1 illustrates a plug wire guide, in accordance with an embodiment of
15 the present subject matter;
[0014] Fig. 2 illustrates accommodation of multi core flat wire and multi core
twisted wire in a single plug, in accordance with an embodiment of the present
subject matter;
[0015] Fig. 3 illustrates accommodation only multi core twisted wire in a single
20 plug, in accordance with an embodiment of the present subject matter;
[0016] Fig. 4 illustrates front, side, and top view of the plug wire guide, m
accordance with an embodiment of the present subject matter;
[0017] Fig. 5 illustrates various view of internal structure of the plug, in
accordance with an embodiment of the present subject matter;"and
25 [0018] Fig. 6 illustrates various view of internal structure of the pin plug along
wi~h plug wire guide, in accordance with an embodiment of the present subject
matter.
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[0019] The figure depicts embodiments of the present subject matter for the
purposes of illustration only. A person skilled in the art will easily recognize from
the following description that alternative embodiments of the structures and
methods illustrated herein may be employed without departing from the principles
5 of the disclosure described herein.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0020] The subject matter disclosed herein relates to plug wire guide to mount
different type of wires, such as multi core flat wire and multi core twisted wires in
a single plug.
10 [0021] As explained above in the background section, the electric pm plug
connector has wire guide which allows only one type of wire to pass through it.
Accordingly, two separate plugs are to be required to clamp two different types of
wires, for example, multi core flat wire and multi core twisted wire. It becomes
very complex and difficult for the user to select the correct plug for the correct
15 wire. If the user uses the wrong plug for wire, it becomes a safety issues. Further,
if wrong plug is used for the wire, wire may not be properly inserted in the casing
of the plug and remains lose in the plug. FUrthermore, wrong wires can easily
come out from the plug and become dangerous for the user or any other person in
the proximity. The wrong wire in the wrong plug can cause short circuit in the
20 plug due to lose mounting of the wire in the wrong plug. Therefore, a pin plug
· wire guide is required which can mount both type of wires i.e, multi core flat wire
and multi core twisted wires in a single plug.
[0022] In accordance with an embodiment of the present subject matter, a wire
guide for plug is provided which can mount different type of wires, such as multi
25 core flat wire and multi core twisted wires in a single plug. The present wire guide
has a keyhole type profile into which both types of wire can be mounted. Further,
shape of the wire guide may be in reverse keyhole shape. In the keyhole type wire
guide, round portion accommodates the multi core twisted wire and flat portion
accommodates the multi core flat wire. In the keyhole type wire guide, round
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portion is at upper side and flat portion is at lower side. Further, the location of the
round portion and the flat portion may be in reversed direction.
[0023) These and other advantages of the present subject matter would be
described in greater detail with reference to the following figures. lt should be
5 noted that the description merely illustrates the principles of the present subject
matter. It will thus be appreciated that those skilled in the art will be able to devise
various arrangements that, although not explicitly described. herein, embody the
principles of the present subject matter and are included within its scope.
[0024] Fig. 1 illustrates a wire guide 100, in accordance with an embodiment of
10 the present subject matter. The present wire guide 100 has keyhole shape profile
into which both type of wires, i.e., multi core flat wire and multi core twisted wire
can be accommodated. The wire guide 100 can also be in reverse keyhole shape
profile. The present wire guide 100 has an upper portion 102, lower portion 104,
and screw mounting holes 106. The upper portion 1 02 can be in round or flat
15 shape. The lower portion 104 can also be in round or flat shape. For the present
explanation, the upper portion 1 02 is considered as round shape and the lower
portion 104 is considered as flat shape. Further, the wire guide 100 can be in any
combination of round and_ flat portion. The upper round portion 102
accommodates multi core twisted wire 202 (as shown in figure 2). The lower flat
20 portion 104 accommodates multi core flat wire 204 (as shown in figure 2). The
screw mounting holes 106 are at least one in number which is provided on middle
of the plug wire guide 100. Further the screw mounting holes 106 are provided on
the inner surface of the wire guide 100. The screw mounting holes 106 mount the
wire guide 100 with base (508 as shown in figure 5) of the pin plug which restricts
25 the movement of the plug. wire guide 100 with respect to the plug. Further, the
wire guide 100 can be made with snap fit mounting structure to mount the wire
guide in the plug. Furthermore, the wire guide 100 can be made part of the plug
during molding of plug.
[0025) F.ig. 2 illustrates accommodation of multi core flat wire and multi core
30 twisted wire in· a single plug, in accordance with an embodiment of the present
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subject matter. In one embodiment of the present subject matter, upper portion of
the wire guide 1 00 is round in shape and lower portion is rectangular in shape.
Accordingly, the multi core twisted wire can be inserted in the upper portion of
the wire guide 100 which is round in shape. Further, the multi core flat wire can
5 be inserted in the lower portion of the wire guide 1 00 which is flat or rectangular
in shape. In another embodiment of the present subject matter, upper portion of
the wire guide 1 00 is in flat or rectangular in shape and lower portion is in round
shape. Accordingly, the multi core flat wire can be inserted in the upper portion
and the multi core twisted wire can be inserted in the lower portion of the wire
10 guide 100.
[0026] Fig. 3 illustrates the mounting of the multi core twisted wire in the upper
round portion of the wire guide 100 for plug where the lower flat portion is empty.
Accordingly, if there is one wire only, the wire guide 100 can be used without'
affecting the functionality. Similarly, only multi core flat wire can also be used in
15 the wire guide 100. Accordingly, only one plug can be used for different type of
wires and also the chance of using wrong plug for wrong wire is avoided.
[0027] Fig. 4 illustrates front, side, and top view of the wire guide, in accordance
with an embodiment of the present subject matter. Fig. 4(a) shows the front view
of the wire guide 100 which clearly illustrates the keyhole profile. Fig. 4(b)
20 illustrates the side view of the wire guide 100. Fig. 4(c) shows the top view of the
wire guide 100 along with the screw mounting holes 106.
[0028] Fig. 5 and 6 illustrate internal structure of the pin plug, in accordance with
an embodiment of the present subject matter. The plug 500 has a plurality of
components. The plug 500 includes plug cover 502, a plurality of pins 504, wire
25 guide 506 (similar of 100 of figure 1), cable grip clamp 508, and plug base 510.
The plug base 510 has several openings to accommodate a plurality of pins 504.
Further, the plug base 510 has plurality of screw mounting structures where the
plug cover 502 and the wire guide 506 can be mounted with the help of plurality
of screws. The components of the plug 500, such as plug base 510, the plug cover
30 502, the wire guide 506, and the cable grip clamp 508 are made of electric
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insulator material. The plurality of pins 504 includes live pin, neutral pin, and
earth pin.
[0029] The wire guide 506 is located at the opening of the plug base 510 and the
plug cover 502. The wire guide 506 is mounted on inner surface of the plug base
5 510. Once the wires are inserted in the wire guide 506, lhe cable grip clamp 50~ is
mounted on the wire guide 506 and plug base 51 0 with screws through screws
mounting holes present on the cable grip clamp 508 and the wire guide 506.
Further, the plug base 510 has screw receiving structure to receive the screws
which pass through the screws mounting holes of the cable grip clamp 508 and the
10 wire guide 506. Further, the wire guide 100 can be mounted on the plug with any
of the known positive mounting techniques. It is not restricted only to screw
mounting. The wire gU;ide 506 may be mounted by snap fit on the plug.
[0030] Although embodiments for the present subject matter have been described
in language specific to structural features, it is to be understood that the invention
15 is not necessarily limited to the specific features described. Rather, the specific
features and methods are disclosed as embodiments for the present subject matter.
Numerous modifications and adaptations of the system/device of the present
invention will be apparent to those skilled in the art, and thus it is intended by the
appended claims to cover all such modifications and adaptations which fall within
20 the scope of the present subject matter.

We claim:
1. A wire guide (100, 506) for accommodating different types ofwires.
2. The wire guide (100, 506) as claimed in ~laim 1, wherein the wire guide
(100, 506) has keyhole shape profile.
5 3. The wire guide (1 00, 506) as claimed in claim 1, wherein the different type
-ofwiro:J arc multi core flat wiie ami mulli core twisted wire.
4. The wire guide (1 00, 506) as claimed in claim 1, wherein the wire guide
(1 00, 506) has upper round portion (1 02) and lower flat portion (1 04).
5. The wire guide (100, 506) as claimed in claim 1, wherein the wire guide
10 (1 00, 506) is made of electric insulator material.
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6. The wire guide (1 00, 506) as claimed in claim 1, wherein the wire guide
(1 00, 506) is a in reverse keyhole shape profile.
7. A plug (500) comprises:
a plug cover (502);
a plurality of pins (504);
a wire guide (506);
a cable grip clamp (508); and
a plug base (51 0), wherein the plurality of pins ( 504 ), the pin plug ·
wire guide (506), and the cable grip clamp (508) are mounted on the plug
20 base(510).
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8. The plug (500) as claimed in claim 7, wherein the wire guide (506) is
keyhole shape profile for accommodating different type of wires.
9. The plug (500) as claimed in claim 7, wherein the wire guide (100, 506) is mounted on the plug with positive mounting.