JP2002171634A - Plate for wiring fittings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate for wiring fittings in which wiring fittings having functional size bigger than the reference size are installed being embedded without loss of flexibility in the execution of works. SOLUTION: The plate for wiring fittings are provided with an opening 31 inside which wiring fittings C1 having the size of a function surface not smaller than the size of a cross section almost in parallel to the execution surface are inserted, mounting means for mounting the wiring fittings C1, and four screw through holes 40a and 40b which are disposed on the both ends in the respective directions nearly orthogonal to each other. When fastened on the buried box D with screws, all four through holes 40a and 40b or two chosen from the four through holes 40a and 40b which are formed in either of the above directions, are employed for fastening in accordance with an execution state. As a result, the wiring fittings having a bigger functional surface than wiring fittings having the reference size in conventional embedding can be installed being embedded without loss of flexibility in the execution for being fastened to the buried box D with screws.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device plate for arranging wiring devices in buried holes provided in a construction surface such as a wall surface.

[0002]

2. Description of the Related Art Conventionally, an embedding box (switch box) is embedded in an embedding hole provided on a construction surface such as a wall surface, and a rear end of a wiring device such as a switch or an outlet is embedded in the embedding hole. Attach the plate frame to the embedding box from the front of the embedding hole, and attach the decorative plate covering the plate frame to the front of the plate frame, and install the functional surface of the wiring device (the surface where the switch operation body is provided and the outlet There is provided a wiring device plate that exposes only the surface provided with the insertion port) and embeds and arranges the wiring device on the construction surface with a good appearance.

For example, as shown in FIG. 13, the above-mentioned conventional plate frame A2 is made of an insulating synthetic resin.
A synthetic resin plate frame main body 61 having an opening 62 into which a wiring device C2 is inserted inside as shown in FIG. 14 to cover the opening surface side of the embedding hole, and an opening in the plate frame main body 61. Side frame piece 63 located on one side in the short width direction of portion 62
b, a bending piece 64 having a locking groove 65 into which one of the locking claws 73 protruding from both sides of the wiring device C1 is inserted and locked, and a plate frame. A fixing portion 66 provided on the other side frame piece 63a of the main body 61 and into which the locking claw 73 on the other side of the wiring device C1 is inserted and locked is formed as a whole in a substantially rectangular flat plate shape. .

The side frame pieces 63a and 63b and the side frame piece 6
Side pieces 67 and 6 for connecting 3a and 63b at both ends.
7, that is, at both ends in the vertical and horizontal directions of the plate frame A2 in FIG. 13, a length through which a box screw for attaching the plate frame A2 to the embedding box D shown in FIG. 16 is inserted. Perforated screw insertion hole 68
Are formed.

When the dimension of the opening 62 of the plate frame A2 is defined as the reference dimension of the wiring device C2 (hereinafter referred to as "one module size"), the short width direction of the wiring device C2 is defined as the opening. In a state where the wiring device C2 is inserted into the opening 62 so as to match the longitudinal direction of the wiring device 62, two wiring devices C2 each having a module size can be mounted side by side in the short width direction (hereinafter, this size is referred to as "two Module-compatible dimensions ").

Further, as shown in FIG. 14, a wiring device C2 attached to the conventional wiring device plate has a body 70a made of synthetic resin and a cover 70b connected by a pair of metal assembly frames 71. 70, and a pair of locking claws 73, 73 project from the side end surface of the assembly frame 71, respectively. The wiring device C1 illustrated here is a switch, and is a boss portion 70 of a cover 70b formed in a substantially convex shape.
c) An operation handle 74 is provided which protrudes outward from the inside of the container 70 through a substantially rectangular through hole 75 provided on the front side.

When the wiring device C2 is attached to the plate frame main body 61, one locking claw 73 of the wiring device C2 is inserted and locked in the locking groove 65 on the bending piece 64 side, and is bent by the one locking claw 73. The other locking claw 73 is inserted and locked into the fixing portion 66 while urging the piece 46 outward to bend.
As a result, as shown in FIG. 15, the both locking claws 73 are locked in the locking groove 65 and the fixing portion 66, and the wiring device C <b> 2 is attached to the plate frame main body 61 in a state inserted into the opening 62. .

[0008] The embedding box D conforms to the BS standard, etc.
For example, as shown in FIG. 16, it is made of metal and is formed in a substantially rectangular box shape with one surface opened, and is embedded in an embedding hole provided in the construction surface with the opening surface facing forward. An inwardly protruding tongue piece 81 is formed substantially at the center of each peripheral wall 80 of the embedding box D.
Is provided with one screw hole 81a into which a box screw for screwing the plate frame A2 is screwed. Therefore, the plate frame A2 to which the wiring device C2 is attached as described above is arranged so as to cover the opening surface of the embedding box D, and a box screw is inserted into the screw insertion hole 68 of the plate frame A2, and the embedding box is inserted. D screw hole 81a
It is screwed by screwing it on. Here, when the plate frame A2 is appropriately arranged in the embedding box D, the four screw insertion holes 68 of the plate frame A2 communicate with the four screw holes 81a of the embedding box D, respectively. Depending on the construction state, all four screw insertion holes 68 may be used for screwing, or the four screw insertion holes 68 may be used to secure the screw holes 6 at both ends in the vertical direction of the plate frame A2 in FIG.
8, 68, or screw insertion holes 68,
68, and the selected screw insertion holes 68, 6
8 can be screwed on, increasing the degree of freedom in construction.

[0009]

By the way, the wiring device has a normal type formed to a standard size like the above-mentioned wiring device C2, and a switch operation handle and an outlet of an outlet for the purpose of improving usability. There are two types of wide type in which the dimensions of the functional surface of the provided wiring device are increased. Since this wide-type wiring device has a different size and a different shape of a locking claw than a normal-type wiring device, the wide-type wiring device is embedded in the mounting box D in the above-described conventional plate frame A2. There was a problem that it could not be installed.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to embed a wiring device having a functional surface larger than a reference size without impairing the degree of freedom of construction. An instrument plate is provided.

[0011]

In order to achieve the above object, the invention according to claim 1 is screwed in front of an embedding box buried in a construction surface to expose a functional surface of a wiring device and to perform wiring. A wiring device plate that is installed on the construction surface in a form that embeds a part of the device, and has a functional surface that is larger than the cross-sectional dimension that is approximately parallel to the construction surface at the site where the functional surface is embedded. An opening to be mounted, mounting means for attaching the wiring device while being inserted inside the opening, and an embedding box disposed at both ends in each direction substantially orthogonal to each other so as to surround the periphery of the opening. Characterized in that it is provided with four screw insertion holes for screwing, and when screwing into the embedding box, all four screw insertion holes are screwed according to the construction state, or any of the above. Direction Two screw insertion holes formed at both ends can be selected and screwed using these screw insertion holes. As a result, conventional mounting without impairing the degree of freedom of screwing in the mounting box is achieved. In the example, a wiring device having a larger functional surface than a wiring device of a standard dimension embedded and disposed can be embedded and disposed.

According to a second aspect of the present invention, in the first aspect of the present invention, the attaching means is provided on one of the side frame pieces opposed to each other across the opening, and is engaged with the engaging claw of the wiring device. A fixed beam portion having a groove, and a movable beam portion having a locking groove that is flexibly connected to the other side frame piece and locks the locking claw, and is movable with the other side frame piece. A slit is provided around a portion where the beam portion is connected, and the movable beam portion is bent to the side opposite to the opening to engage the locking claw of the wiring device with the locking groove of the fixed beam portion and the movable beam portion. By detaching and detaching, wiring equipment can be easily attached and detached without using special tools etc.In addition, by providing the slit, the area around the part connecting the movable beam part and the side frame piece is thinned and movable The beam part is easily bent, and the locking groove of the movable beam part and the fixed beam part is locked with the locking claw of the wiring device. De The can be easily performed, so that it is possible to further facilitate attachment and detachment of the wiring devices.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a recess communicating with the opening is provided in a peripheral portion on the front side of two screw insertion holes substantially opposed to each other with the opening interposed therebetween. For example, when the wiring device is a switch and the operation handle of the switch is dimensioned to cover the front side peripheral portions of the two screw insertion holes, the operation handle is provided by providing a recess. Of the operation handle can be suppressed from protruding from the construction surface by storing a part of the operation handle in the recess.

According to a fourth aspect of the present invention, in the third aspect of the present invention, a step is provided around the screw insertion hole of the recess to protrude forward from the bottom surface. For example, when the screw is inserted into the screw insertion hole in the recess and screwed to the embedding box, deformation due to tightening of the screw can be suppressed.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, two screw insertion holes which are substantially opposed to each other across the opening are formed in a round hole shape. When a screw is inserted into the insertion hole and screwed into the embedding box, the movement of the installed wiring device in the embedding box can be restricted, and as a result, for example, the wiring device with the exposed charging part is metallized. In the case where the embedded portion is embedded in the embedded box made of steel, the insulation distance between the charging section and the embedded box can be kept constant, and safety can be ensured.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of the embodiments of the present invention, a brief description will be given of a wide-type wiring device fixed to a wiring device plate according to the present invention and embedded in a construction surface. I do.

The wide-type wiring device is, for example, a switch in which an operation handle (not shown) is attached to the device main body 10 as shown in FIG.

The instrument body 10 is made of a synthetic resin body 10.
a and a cover 10b. A pair of locking projections 11 are provided on both sides along the longitudinal direction of the body 10a, respectively.
0b, projecting projections 13 are provided, each of which has a locking projection 11 and a locking hole 12 for locking and releasable locking. The body 10a and the cover 10b are coupled by engaging the concave and convex 12 with each other. Further, on both side surfaces of the cover 10b opposed to each other in the longitudinal direction, step portions 14, 14 which are one step higher than the front surface of the cover 10b are formed, and each step portion 14 has a pair of locking projections protruding laterally. Claws 15 are protrudingly provided. And
The instrument body 10 includes a swingable reversing handle 16 that projects outward from the inside of the body 10c through a through hole 16a provided on the front side of the cover 10b, and a movable contact housed inside the body 10c, for example. A contact portion having a fixed contact;
An opening / closing mechanism that is driven in accordance with the swing of the reversing handle 16 and that opens and closes the contact portion by moving the movable contact of the contact portion to and away from the fixed contact.

An operation handle is attached to the tip of the above-mentioned reversing handle 16, and the size of the operation surface, which is a functional surface for the purpose of improving the usability of the wiring device, is embedded in the rear end of the body 10c. It is formed so as to have a cross-sectional dimension that is substantially parallel to the construction surface at the portion where the work is to be performed. For example, an operation handle having a dimension of the operation surface substantially equal to the cross-sectional dimension and a size of the operation surface corresponding to 1.5 times the cross-sectional dimension in the short width direction (hereinafter, referred to as “1.5 times equivalent dimension”). There are an operation handle and an operation handle having a dimension corresponding to three times in the short width direction (hereinafter, referred to as “three times equivalent dimension”). That is, the dimensions of the functional surface of the wiring device are different between the normal wiring device C2 and the wide wiring device, and the functional surface of the wide wiring device is larger than that of the normal wiring device C2. . In addition, ordinary wiring equipment C2
Locking claw 73 and the device main body 1 in the wide type wiring device
The shape of the 0 locking claw 15 is also different.

It should be noted that the types of ordinary wiring devices and wide type wiring devices are not limited to switches.

Next, an embodiment of the present invention will be described.
As shown in FIG. 1, the wiring device plate of the present embodiment includes an opening 31 into which the wide-type wiring device C1 including the above-described device main body 10 and the operation handle 20 is inserted, and the wiring device C1. A plate frame A1 provided on a construction surface with mounting means for being inserted into the inside of the opening 31 and an opening window 52 exposing a functional surface (operation surface of the operation handle 20) of the wiring device C1. And a decorative plate B1 attached to the front surface of the plate frame A1 and covering the front surface of the plate frame A1.

As shown in FIG. 3, the plate frame A1 in the present embodiment has a pair of side pieces 32, 32 opposed in the longitudinal direction with the opening 31 interposed therebetween, and substantially perpendicular to the longitudinal direction with the opening 31 interposed therebetween. Pair of side frame pieces 33 facing each other
a plate frame main body 30 formed of an insulating synthetic resin into a substantially rectangular frame shape, and a band-shaped fixed beam portion 34 formed on the back side of one side frame piece 33a.
And the connecting portions 36, 3 separated from the other side frame piece 33b.
6 and a movable beam portion 35 which is integrally and flexibly connected to the side frame piece 33b at both ends thereof. In the fixed beam portion 34, a locking groove 34 for locking the locking claw 15 provided on one side in the longitudinal direction of the device main body 10 of the wiring device C1.
The movable beam 35 is formed with four locking grooves 35a for locking the locking claws 15 provided on the other side in the longitudinal direction of the instrument body 10, and the mounting means is a fixed beam. Part 34
And the movable beam portion 35.

The movable beam portion 35 is supported by a pair of narrow support portions 37 extending integrally from the side frame piece 33b, and a gap formed between the movable beam portion 35 and the side frame piece 33b. Are three slits 38a-
38c. Furthermore, each support portion 3 of the side frame piece 33b
A pair of slots 39 having a long hole shape are provided in the vicinity of 7 in order to make the movable beam portion 35 easily bendable.

Here, the width of the opening 31 in the short width direction is made larger than the width of the opening 62 of the conventional plate frame body 61 in the short width direction. This allows
The size of the opening 31 is the wide type wiring device C shown in FIG.
In a state in which the longitudinal direction of one appliance main body 10 is substantially orthogonal to the longitudinal direction of the opening 31 and the appliance main body 10 is inserted into the opening 31, two instrument main bodies 10 are arranged side by side in a direction substantially orthogonal to the longitudinal direction. It is the size that can be.
The pitch of the locking grooves 34a, 35a provided in the fixed beam portion 34 and the movable beam portion 35 of the plate frame main body 30 is one.
The pitch is equal to the pitch of the locking claws 15 protruding from the side surface of the body 10c of the wiring equipment C1.

As shown in FIG. 4, the locking claws 15 of the wiring device C1 are provided at the distal end portions of the fixed beam portion 34 and the movable beam portion 35.
From the back side of the plate frame body 30 to the locking grooves 34a, 35
a, the locking claws 15 are locked with the locking grooves 34a, 35a.
Guide portions 34b and 35b each having a tapered surface inclined outward are provided for guiding to a. When attaching the wiring device C1 to the plate frame A1, first, the locking claws 15, 15 on one side in the longitudinal direction of the device main body 10 of the wiring device C1 are brought into contact with the tapered surface of the guide 34b, and the one side of the device main body 10 The side is the plate frame body 30
From the back side to the front side. As a result, the locking claws 15, 15 move along the tapered surface of the guide portion 34b, so that they can be smoothly guided by the guide portion 34b and locked in the locking grooves 34a, 34a. Next, in the same manner as described above, the other locking claws 15 in the longitudinal direction of the tool main body 10 of the wiring tool C1 are brought into contact with the tapered surface of the guide 35b. When the other side of the instrument body 10 is pushed from the back side of the plate frame body 30 to the front side, the locking claws 15, 15 urge the movable beam portion 35 outward to bend while the guide portion 35 b It moves along the tapered surface and is guided by the guide portion 35b to be smoothly locked in the locking grooves 35a.

Further, the fixing beam portion 34 is provided with an instrument removing hole 34c which penetrates from the front side of the plate frame main body 30 between the locking grooves 34a, and a tip of a driver or a jig dedicated to removal is provided. If the part is inserted into the instrument removing hole 34c and the body 10c is pushed toward the movable beam 35 by the tip of the jig, the movable beam 35 can be bent with a slight force, and the fixed beam 34 can be bent. The body 10c of the wiring device C2 can be removed from the plate frame main body 30 by releasing the locking between the locking groove 34a on the side and the locking claw 15 of the body 10c.

Here, in this embodiment, the plate frame body 3
A slit 38d communicating with the opening 31 along the longitudinal direction of the movable beam portion 35 is provided around the connecting portions 36, 36 connecting the movable beam portion 35 and the side frame piece 33b.
As a result, the connecting portion 36 becomes thin, and the movable beam portion 35 is easily bent, so that the locking groove 35a of the movable beam portion 35 and the locking claw 15 of the body 10c can be easily locked and released. As a result, the plate frame A1 of the device main body 10 of the wiring device C1.
It can be easily attached to and detached from. Also, slit 3
By forming the outer end portions of 8a and 38c to be bent toward the above-described slit 38d, the connecting portion 36 is further thinned, and the attachment and detachment of the wiring device C1 can be further facilitated.

An elongated screw insertion hole 40a into which a box screw 90 is inserted is provided substantially at the center of each side frame piece 33a, 33b. A round hole-shaped screw insertion hole 40b into which the hole 90 is inserted is provided. Thus, the screw insertion hole 40
a, 40a and the screw insertion holes 40b, 40b are arranged at both ends in each direction substantially orthogonal to each other so as to surround the periphery of the opening 31 of the plate frame main body 30, so that the plate frame A1 can be formed similarly to the conventional example. When screwing, four screw insertion holes 40a, 40a, 40
b, 40b, or screw insertion holes arranged at both ends in any of the above directions, that is, screw insertion holes 40a, 40a or screw insertion holes 40b, 40b.
Can be selected and screwed using these, so that the degree of freedom in the work of screwing into the embedding box D is not impaired.

Further, in the present embodiment, the screw insertion hole 40
When the box screws 90 are inserted into the screw insertion holes 40b and 40b, respectively, and the plate frame A1 is screwed to the embedding box D by forming the round holes b and 40b, the device attached to the plate frame A1 The movement of the main body 10 in the embedding box D can be restricted. For example, as shown in FIG. 5, when the shape of the screw insertion holes 40b, 40b is a long hole along the longitudinal direction of the side piece 32, the box screws 90 are respectively inserted into the screw insertion holes 40b, 40b. When the plate frame A1 is screwed into the embedding box D, as shown in FIG.
6 may be shifted upward in FIG. 6 in the embedding box D, and the distance between the instrument body 10 and the peripheral wall 80 and the tongue piece 81 may be shortened. In such a case, the peripheral wall 80 and the tongue piece 81 of the metal embedding box D and the instrument body 10
The terminal 17 of the charged part exposed from the body 10c of the above-mentioned body is close to the insulation part, and the insulation distance is short.

Therefore, in this embodiment, as described above, the screw insertion holes 40b, 40b are formed into round holes, so that the terminal 17 and the peripheral wall 80 of the embedding box and the tongue piece 81 are formed as shown in FIG. Safety can be ensured by keeping the insulation distance constant.

In the present embodiment, as shown in FIG. 7, a substantially rectangular recess 41 communicating with the opening 31 is provided in the periphery of the front surface of the screw insertion holes 40b, 40b of the plate frame body 30. I have. Therefore, for example, as shown in FIG. 1, the locking claw 15 of the instrument body 10 is fixed to the fixed beam portion 34 and the movable beam portion 3.
5, a pair of locking grooves 34a,
When the instrument main body 10 is attached to the plate frame A1 by being locked to 34a, 35a, 35a and the operation handle 20 whose operation surface is three times as large as the operation surface is attached to the instrument main body 10, the longitudinal length of the operation handle 20 is increased. Both ends in the direction are accommodated in the recesses 41, respectively, so that the operation handle 20 can be prevented from protruding from the construction surface.

Here, since the recess 41 is provided in the plate frame main body 30 as described above, the thickness of the bottom of the recess 41 in the plate frame main body 61 is reduced.
A main step portion 41b projecting forward from the bottom surface is provided around the screw insertion hole 40b of the recess 41. Thus, the mechanical strength is improved by increasing the thickness around the screw insertion hole 40b of the recess 41, and when the box screw 90 is inserted into the screw insertion hole 40b and screwed into the embedding box D, the box screw 9
The deformation of the plate frame main body 30 due to the tightening of 0 can be suppressed. Further, as shown in FIGS. 11 and 12, a step 4 projecting forward from the bottom surface similarly to the step 41 b is provided at a portion sandwiching the main step 41 b in the recess 41.
1a may be provided. Thereby, the plate frame body 30
Can be further improved in mechanical strength.

At four corners of the plate frame body 30, there are provided decorative plate locking holes 42 for locking locking projections (not shown) protruding from the back of the main portion 50 of the decorative plate B1. The decorative plate B1 can be detachably attached to the front side of the plate frame A1 by inserting and locking the locking projections into the decorative plate locking holes 42.

On the other hand, the decorative plate B4 is made of an insulative synthetic resin and has a substantially rectangular main portion 50 covering the front surface of the plate frame A1 and a side wall 51 projecting rearward from the entire periphery of the main portion 50. It has a substantially box shape. Main part 61
In the center of the wiring device C attached to the plate frame A1
An opening window 52 that exposes one operation handle 20 is provided.

On the back of the main part 50, a plurality of ridges (not shown) which are respectively fitted into the slits 38a to 38c of the side frame piece 33b of the plate frame main body 30 are projected. The movement (deflection) of the movable beam portion 35 of the plate frame main body 30 is regulated by the protrusions being fitted into the slits 38a to 38c, so that when the wiring device C1 is subjected to an impact, the wiring device C1 is engaged. The locking between the stop claw 15 and the locking grooves 35a and 34a of the movable beam portion 35 and the fixed beam portion 34 is not easily released.

As shown in FIG. 9, the plate frame A1 of this embodiment has a fixed beam portion 34 and a movable beam portion 35.
Of the device main body 1 in all the locking grooves 34a and 35a of the
By locking the 0 locking claw 15, up to two instrument bodies 10 can be attached. At this time, as shown in FIG. 10, a wiring device C1 ′ including an operation handle 20 ′ having a size of an operation surface equivalent to 1.5 times the size of the operation surface and the device body 10
Can be embedded in two.

[0037]

According to the first aspect of the present invention, the wiring box is screwed in front of an embedding box buried in the construction surface to expose the functional surface of the wiring device and to be embedded in the construction surface in such a manner that a part of the wiring device is embedded. A wiring device plate to be installed, wherein an opening for inserting a wiring device having a cross-sectional dimension substantially equal to or greater than a substantially parallel to a construction surface at a site where the size of the functional surface is embedded is inserted inside; Attachment means attached in a state inserted inside, and four screw insertion holes for screwing to the embedding box, which are arranged at both ends in each direction substantially orthogonal to each other so as to surround the periphery of the opening. Since it is provided, when screwing into the embedding box, it may be screwed using all four screw insertion holes depending on the construction state, or two screw insertion holes formed at both ends in any one of the above directions. Select one of these It can be screwed using the screw insertion hole, and as a result, without impairing the flexibility of installation to screw into the embedding box, it has a higher functional surface than the standard size wiring equipment embedded in the conventional example However, there is an effect that a large wiring device can be embedded and disposed.

According to a second aspect of the present invention, the fixing means is provided on one of the side frame pieces opposed to each other across the opening, and has a locking groove for locking with a locking claw of the wiring device. And a movable beam portion, which is flexibly connected to the other side frame piece and has a locking groove for locking the locking claw, around a portion where the other side frame piece and the movable beam portion are connected. Since the slit is provided in the movable beam, the movable beam is bent to the side opposite to the opening, and the locking claw of the wiring device is locked and released in the locking groove of the fixed beam and the movable beam. The wiring device can be easily attached / detached without using, and furthermore, by providing the slit, the periphery of a portion connecting the movable beam portion and the side frame piece is thinned so that the movable beam portion is easily bent, and the movable beam portion is provided. In addition, the locking groove of the fixing beam and the locking claw of the wiring device can be easily released and released, and the connection , There is an effect that it is possible to further facilitate attachment and detachment of the wiring devices.

According to the third aspect of the present invention, a recess communicating with the opening is provided in a peripheral portion on the front side of the two screw insertion holes substantially opposed to each other with the opening interposed therebetween. When the operating handle of the switch is sized and shaped to cover the peripheral portion on the front side of the two screw insertion holes, a part of the operating handle is placed in the recess by providing the recess, and There is an effect that the protrusion from the construction side can be suppressed.

According to the fourth aspect of the present invention, a step is provided around the screw insertion hole of the recess to protrude forward from the bottom surface. For example, when a screw is inserted into a screw insertion hole in a recess and screwed to an embedding box, deformation due to screw tightening can be suppressed.

According to the fifth aspect of the present invention, the two screw insertion holes which are substantially opposed to each other across the opening are formed into round holes, so that screws are inserted into the two screw insertion holes and screwed to the embedding box. Sometimes, it is possible to regulate the movement of the installed wiring equipment in the embedded box, and as a result, for example, when the wiring equipment with the exposed live part is embedded in the metal embedded box, Has an effect that the insulation distance between the charging part and the embedding box can be kept constant and safety can be ensured.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a mounting configuration of a wiring device according to an embodiment.

2 (a) is a front view, and FIG. 2 (b) is a side view showing a device main body of the wiring device to be attached.

FIG. 3 is a front view of the plate frame according to the first embodiment;

FIG. 4 is a side cross-sectional view when the plate frame to which the wiring device is attached is placed in an embedding box.

FIG. 5 is a front view of the plate frame for comparative description of the above.

FIG. 6 is a side cross-sectional view when a plate frame for comparison explanation to which the wiring device is attached is arranged in an embedding box.

FIG. 7 is a side sectional view of the plate frame of the above.

FIG. 8 is a front view when a wiring device is attached to the plate frame of the above.

FIG. 9 is a front view when two wiring device main bodies are attached to the plate frame of the above.

FIG. 10 is an exploded perspective view showing a mounting configuration of another wiring device of the above.

FIG. 11 is a side sectional view of another plate frame of the above.

FIG. 12 is a front view of another plate frame of the above.

FIG. 13 is a front view of a plate frame showing a conventional example.

FIG. 14 shows a wiring device attached to the above.
(A) is a front view, (b) is a side view.

FIG. 15 is a front view when two wiring devices are attached to the plate frame of the above.

FIG. 16 is a front view showing the embedding box of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Instrument main body 20 Operation handle 31 Opening 33a, 33b Side frame piece 34 Fixed beam part 34a Locking groove 35 Movable beam 35a Locking groove 52 Opening window A1 Plate frame B1 Decorative plate C1 Wiring device D Embedding box

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroyuki Tateishi 1048, Oaza Kadoma, Kadoma, Osaka Prefecture F-term in Matsushita Electric Works, Ltd. (reference) 5G052 AA12 BB03 HA21 HB05 HC03 5G357 CA06 CB04 CC01 CC05 CD03 CF02

Claims (5)

[Claims] 1. A wiring device plate screwed in front of an embedding box embedded in a construction surface and disposed on the construction surface so as to expose a functional surface of the wiring device and to embed a part of the wiring device. An opening for inserting a wiring device having a functional surface having a cross-sectional dimension substantially equal to or greater than a cross-sectional dimension substantially parallel to a construction surface in a portion where the functional device is embedded, and the wiring device is attached with the wiring device inserted inside the opening. Mounting means, and four screw insertion holes for screwing to the embedding box, which are arranged at both ends in each direction substantially orthogonal to each other so as to surround the periphery of the opening. Plate for wiring equipment. 2. The mounting means is provided on one of the side frame pieces opposed to each other across the opening, and has a fixing beam portion provided with a locking groove for locking with a locking claw of the wiring device, and the other side. A movable beam portion, which is flexibly connected to the frame piece and has a locking groove for locking the locking claw, and a slit is provided around a portion where the other side frame piece and the movable beam portion are connected. 2. The wiring device plate according to claim 1, wherein: 3. The wiring device according to claim 1, wherein a recess communicating with the opening is provided in a peripheral portion on the front side of the two screw insertion holes substantially opposed to each other across the opening. Plate. 4. The wiring device plate according to claim 3, wherein a step portion protruding forward from the bottom surface is provided around the screw insertion hole of the recess. 5. The wiring device plate according to claim 1, wherein two screw insertion holes which are substantially opposed to each other with the opening interposed therebetween have a round hole shape.