JP2010148339A - Plate for wiring device, and wiring device - Google Patents

Abstract

To provide a wiring device plate 12 capable of preventing deformation of a resin plate body 21 by screwing. A wiring device plate 12 includes a resin plate body 21 and a pair of screw receiving members 22. Is provided. The plate body 21 is formed in a rectangular frame shape having an opening 24 for attaching the wiring device 13 at the center, and screw receiving member attaching portions 26 are provided at both ends in the longitudinal direction. The screw receiving member 22 is formed of metal and provided with a screw insertion hole 39, and is attached to the screw receiving member attaching portion 26 of the plate body 21. A screw for attaching the wiring device plate 12 to the wiring box is received by the screw receiving member 22.
[Selection] Figure 1

Description

  The present invention relates to a wiring device plate used in a wiring device and a wiring device using the wiring device plate.

  Conventionally, a wiring device is configured to hold a wiring device such as a switch or an outlet, and to be screwed and installed in a wiring box installed on the back side of the wall surface material through an installation hole provided in the wall surface material. Yes. The wiring device includes a wiring device plate that holds the wiring device and is attached to the wiring box, and a decorative panel that is attached to and covers the front surface of the wiring device plate.

  The wiring device plate is made of a resin and is formed in a rectangular frame shape having an opening in the center, and both side edges of the opening in the short direction are provided with wiring device mounting portions facing each other across the opening. Screw insertion holes for inserting screws for screwing the wiring box are provided at both ends in the longitudinal direction.

  By the way, the wiring box is installed inside the wall material. Therefore, when attaching the wiring device plate to the wiring box with screws, the periphery of the wiring device plate abuts against the wall surface material but is separated from the wiring box. The working plate is deformed so as to be pushed into the wiring box side from the surface of the wall surface material, and the wiring device is disposed inside the designated position. Furthermore, there is a problem that the decorative panel is not successfully attached to the wiring device plate or the wiring device plate is damaged.

Therefore, a metal reinforcing member having a rectangular frame shape that is substantially the same shape as the wiring device plate is arranged on the front surface of the wiring device plate so as to prevent deformation of the wiring device plate due to screwing during installation. (For example, refer to Patent Document 1).
JP 2008-160898 A (page 6-8, FIG. 1)

  However, in the conventional wiring device plate, in order to prevent deformation due to screwing, a metal reinforcing member is disposed on the front surface of the wiring device plate. This reinforcing member is substantially the same as the wiring device plate. Since it is formed in the shape of a rectangular frame, it will also reinforce parts that are not related to screwing, and there is a disadvantage that the amount of material used is large and the cost is high.

  The present invention has been made in view of the above points, and a wiring device plate capable of preventing deformation of a plate body due to screwing without using a rectangular frame-shaped reinforcing member as in the prior art, and for this wiring device It aims at providing the wiring apparatus using a plate.

  The wiring device plate according to claim 1, wherein the wiring device plate is formed in a rectangular frame shape having an opening in the center, and is provided opposite to each other with both sides of the opening in the short direction sandwiching the opening. A resin plate body having a mounting portion and screw receiving member mounting portions provided at both ends in the longitudinal direction; and a screw insertion hole formed of a material having rigidity higher than that of the plate body; A pair of screw receiving members attached to each screw receiving member attaching portion of the plate body.

  The plate body can be mounted with, for example, a standardized one-module-sized wiring device and a three-module-sized wiring device, and the wiring device is inserted so as to protrude forward from the rear side of the opening, The wiring device can be held by the wiring device mounting portions provided opposite to each other across the opening on both side edges of the portion.

  Any resin material such as a thermoplastic resin may be used as the resin material of the plate body.

  The screw receiving member may be made of metal or resin, for example, as long as the material is higher in rigidity than the material of the plate body. In order to attach the screw receiving member to the plate main body, a fitting structure may be used, or a part of the plate main body may be thermally welded or fixed to the screw receiving member.

  The wiring device plate according to claim 2 is the wiring device plate according to claim 1, wherein the screw receiving member is formed in a substantially U-shaped cross section.

  The screw receiving member is formed, for example, in a substantially U-shaped cross section by bending both sides in a direction corresponding to the longitudinal direction of the plate body.

  The wiring device plate according to claim 3 is the wiring device plate according to claim 1 or 2, wherein the dimension of the screw receiving member in the direction corresponding to the short direction of the plate body is a wall surface material for mounting the wiring device plate. And at least part of the screw receiving member protrudes in the longitudinal direction of the plate body from the installation hole.

  A wiring box is installed on the back surface side of the wall material provided with the installation hole. The wiring box accommodates a wiring device through the installation hole and is installed with a wiring device plate with screws. Generally, the installation hole provided in the wall surface material is smaller than the opening of the wiring box.

  The dimension of the screw receiving member in the direction corresponding to the short direction of the plate body is larger than the dimension of the installation hole provided in the wall surface material for mounting the wiring device plate, and at least a part of the screw receiving member is larger than the installation hole. Since it protrudes in the longitudinal direction of the plate body, the screwing force of the screw receiving member can be received by the wall surface material.

  The wiring device according to claim 4 is a wiring device plate according to any one of claims 1 to 3; a wiring device attached to the wiring device plate; and a makeup that is attached to the front surface of the wiring device plate. And a panel.

  The wiring device may be, for example, a switch, an outlet, or another wiring device.

  The decorative panel is formed with a window hole through which, for example, the switch operation section and the outlet connection section are exposed.

  According to the wiring device plate of claim 1, the pair of screw receiving members which are formed of a material having rigidity higher than that of the plate body and have screw insertion holes are attached to both ends in the longitudinal direction of the plate body. Because it is configured, without using a rectangular frame-shaped reinforcing member as in the past, the screw receiving member attached to the part necessary for screwing the fret body receives the screwing action and reliably prevents deformation of the plate body it can.

  According to the wiring device plate according to claim 2, in addition to the effect of the wiring device plate according to claim 1, the screw receiving member is formed in a substantially U-shaped cross section, so that the strength of the screw receiving member is increased. The mounting strength by screwing the wiring device plate can be improved.

  According to the wiring device plate according to claim 3, in addition to the effect of the wiring device plate according to claim 1 or 2, the dimension of the screw receiving member in the direction corresponding to the short direction of the plate body is used for the wiring device. Larger than the size of the installation hole provided in the wall surface material for mounting the plate, and at least a part of the screw receiving member protrudes in the longitudinal direction of the plate body from the installation hole, so that deformation of the plate body is reliably prevented. it can.

  According to the wiring device according to the fourth aspect, deformation due to screwing of the wiring device plate can be prevented, the wiring device can be disposed at a predetermined position, and the decorative panel can be reliably attached.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 is a front view of a plate body and a screw receiving member of the wiring device, FIG. 2 is a front view of the plate body, FIG. 3 is a front view of a decorative panel attached to the plate body, and FIG. 4 is a side view of the wiring device. FIG. 5 is a sectional view in an exploded state as viewed from the bottom of the wiring device, FIG. 6 is a sectional view taken along line AA in FIG. 1, and FIG. 7 is a sectional view taken along line BB in FIG. .

  As shown in FIGS. 3 to 5, the wiring device 11 includes a wiring device plate 12, one or a plurality of wiring devices 13 (shown in FIG. 1) attached to the wiring device plate 12, and a wiring device plate. A decorative panel 14 attached to the front surface is provided.

  As shown in FIG. 2, the wiring device 11 is configured to be screwed and installed in a wiring box 16 installed on the back side of the wall surface material through an installation hole provided in a wall material (not shown). An opening 17 is formed in the front surface of the wiring box 16, and mounting holes 18 for screwing the wiring device plate 12 are provided at upper and lower edges of the opening 17. A cable (not shown) connected to the wiring device 13 is drawn into the wiring box 16.

  As shown in FIGS. 1 and 2, and FIGS. 6 and 7, the wiring device plate 12 includes a vertically long rectangular frame-shaped plate body 21 and both ends in the vertical direction, which is the longitudinal direction of the plate body 21. And a pair of screw receiving members 22 attached to the front surface of the unit.

  The plate body 21 is made of, for example, a resin such as a thermoplastic resin, and a vertically long opening 24 for attaching the wiring device 13 is formed at the center.

  On both side edges of the opening 24 in the lateral direction, which is the short direction of the plate body 21, for example, a wiring device mounting portion 25 for mounting a wiring device 13 of 1 module size or 3 module size sandwiches the opening 24. They are formed opposite to each other.

  Screw receiving member attaching portions 26 for attaching the screw receiving members 22 are formed at both ends of the plate main body 21 in the vertical direction. In these screw receiving member mounting portions 26, mounting openings 27 having substantially the same width as the opening portions 24 are formed. At the edge in the vertical direction of the mounting opening 27, an inner support 28 is formed at the edge near the center of the plate main body 21, and an outer support 29 is formed at the outer edge of the plate main body 21. . On the inner surface facing the mounting opening 27 of the inner support portion 28, a plurality of a pair of locking claws 30 are formed to project. These locking claws 30 have an inclined surface on the front side and a locking surface substantially parallel to the front surface of the plate body 21 on the rear side. In addition, the outer support portion 29 is formed by a stepped portion that protrudes into the mounting opening 27.

  The screw receiving member mounting portion 26 has a plurality of pairs of engagements at the left and right side positions of the mounting opening 27 and at the front surface position of the plate body 21 that is intermediate between the inner support portion 28 and the outer support portion 29. The stop piece 31 protrudes forward. Locking claws 32 that protrude toward the center of the plate body 21 are formed at the tips of the locking pieces 31. The locking claw 32 has an inclined surface on the front side and a locking surface substantially parallel to the front surface of the plate body 21 on the rear side.

  Further, a plurality of fitting holes 34 for attaching the decorative panel 14 are formed in the vicinity of the peripheral portion of the plate body 21.

  Subsequently, the screw receiving member 22 is made of a material having higher rigidity than the material of the plate body 21, for example, a metal, and the plate body 21 that is on the rear surface side from both sides of the board portion 36 in the vertical direction. It is formed in a substantially U-shaped cross section having an inner engagement portion 37 and an outer engagement portion 38 that are bent toward the side. When the screw receiving member 22 is attached to the plate body 21, the inner engagement portion 37 is located on the center side of the plate body 21, and the outer engagement portion 38 is on the outer side opposite to the center side of the plate body 21. To position.

  An elongated screw insertion hole 39 that is long in the left-right direction is formed in the center of the substrate portion 36, and a plurality of dowels 40 that protrude toward the surface side of the substrate portion 36 are formed around the screw insertion hole 39. . The dowels 40 are long in the left-right direction and the up-down direction, and are configured so that the strength of the screw receiving member 22 can be obtained in any of the up-down, left-right directions.

  The inner engagement portion 37 has a protruding portion 37a in the center region in the left-right direction extending rearward from both the left and right regions, and is inserted into the mounting opening 27 of the plate body 21 and engages with the inner surface of the inner support portion 28. Is done. The outer engagement portion 38 is provided only in the center region in the left-right direction of the screw receiving member 22 and is engaged with the stepped outer support portion 29 of the plate body 21. When the screw receiving member 22 is attached to the plate main body 21, the inner engaging portion 37 has a plurality of pairs of locking holes into which the respective locking claws 30 of the inner support portion 28 are fitted to prevent the locking. 41 is formed.

  When the screw receiving member 22 is attached to the plate main body 21 on both sides in the left-right direction of the screw receiving member 22 on the outer edge opposite to the center side of the plate main body 21, A locking edge portion 42 is formed in which the pawl 32 is fitted and locked to come off.

  The dimensions of the screw receiving member 22 in the left-right direction and the up-down direction are larger than the dimensions of the wall material installation hole and the opening 17 of the wiring box 16.

  The wiring device 13 is, for example, a 1-module or 3-module switch or outlet, and is inserted so as to protrude forward from the rear surface side of the opening 24 of the wiring device plate 12. It is held by a wiring device mounting portion 25 provided opposite to each other across the opening 24 at the edge.

  In addition, the decorative panel 14 is formed in a dimension that can be attached to and covered with the front surface of the wiring device plate 12, and in the center, the operation portion of the wiring device 13 and the wiring device 13 itself are vertically exposed. Window hole 51 is formed. On the rear surface of the decorative panel 14, a plurality of fitting pieces 52 that are detachably fitted into the respective fitting holes 34 of the wiring device plate 12 are projected.

  Next, the operation of the present embodiment will be described.

  First, the assembly of the wiring device plate 12 will be described.

  The screw receiving members 22 are fitted and attached to the screw receiving member attaching portions 26 of the plate body 21 from the front.

  That is, by fitting the protrusion 37a and the outer engagement portion 38 of the inner engagement portion 37 of the screw receiving member 22 into the inner support portion 28 and the outer support portion 29 of the plate body 21 from the front and moving them. The projecting portion 37a and the outer engaging portion 38 of the inner engaging portion 37 of the screw receiving member 22 are fitted inside the inner supporting portion 28 and the outer supporting portion 29 of the plate body 21, and each locking hole of the screw receiving member 22 is fitted. 41 is locked to each locking claw 30 of the inner support portion 28, and each locking edge portion 42 of the screw receiving member 22 is locked to each locking claw 32 protruding from the plate body 21.

  In a state where the screw receiving member 22 is attached to the plate body 21, the protrusion 37a and the outer engagement portion 38 of the inner engagement portion 37 are engaged with the inner support portion 28 and the outer support portion 29 of the plate body 21, The positioning in both the vertical and horizontal directions is regulated, and the rear surfaces of the left and right ends of the board portion 36 abut against the front surface of the plate body 21 and the locking claws 30 and 32 are locked to the screw receiving member 22 so that the plate body. The attachment / detachment direction with respect to 21, that is, the position in the front-rear direction is regulated. Therefore, the screw receiving member 22 is firmly attached to the plate body 21. Further, the screw insertion hole 39 of the screw receiving member 22 is opposed to the rear side of the plate body 21 through the mounting opening 27 of the plate body 21.

  Next, installation of the wiring device 11 will be described.

  Insert the wiring device 13 so that it protrudes forward from the rear surface side of the opening 24 of the wiring device plate 12, and attach the wiring device provided opposite to each other with the opening 24 on both side edges of the opening 24. The wiring device 13 is held by the portion 25. The cable drawn from the wiring box 16 through the wall material installation hole is connected to the wiring device 13.

  The wiring device plate 12 is placed on the front side of the wiring box 16 through the wall material installation hole while inserting the pulled-out cable and the rear part of the wiring device 13 into the wiring box 16 through the wall material installation hole. A screw is screwed into the mounting hole 18 of the wiring box 16 through the screw insertion hole 39 of each screw receiving member 22 of the wiring device plate 12, and the wiring device plate 12 is fastened and fixed to the wiring box 16.

  At this time, since the metal screw receiving member 22 is used for the portion of the resin plate main body 21 that receives the screw, deformation of the plate main body 21 can be prevented.

  In particular, since the screw receiving member 22 is formed in a substantially U-shaped cross section, the strength of the screw receiving member 22 is high, and the mounting strength of the plate body 21 by screwing can be further improved.

  Further, since the dimensions of the screw receiving member 22 in the left and right direction and the vertical direction are formed so as to protrude in the left and right direction and the vertical direction of the installation hole of the wall surface material, both ends of the screw receiving member 22 are interposed through the wall surface material. Therefore, the plate body 21 can be reliably prevented from being deformed.

  Therefore, lastly, the decorative panel 14 is attached and attached to the wiring device plate 12. However, since the deformation of the wiring device plate 12 hardly occurs, the wiring device 13 can be placed at a predetermined position, and the decorative panel 14 is attached. It can be securely attached to the wiring device plate 12.

  As described above, the wiring device plate 12 is configured to be attached to the plate body 21 with a pair of screw receiving members 22 that are formed of a material higher in rigidity than the material of the plate body 21 and have the screw insertion holes 39. Without the use of a rectangular frame-shaped reinforcing member as in the prior art, the screw receiving member 22 attached to the portion necessary for screwing the fret body 21 can be screwed to reliably prevent deformation of the plate body 21. . Therefore, compared to the case of using a rectangular frame-shaped reinforcing member as in the prior art, the amount of material used for the screw receiving member 22 is reduced, and the cost can be reduced.

  In order to attach the screw receiving member 22 to the plate main body 21, it can be easily assembled by using the fitting structure as described above. For example, a part of the plate main body 21 is thermally welded to the screw receiving member 22. You can fix it.

It is a front view of the plate main body and screw receiving member of the wiring apparatus which shows one embodiment of the present invention. It is a front view of a plate main body same as the above. It is a front view which attached the decorative panel to the plate main body same as the above. It is sectional drawing of the decomposition | disassembly state seen from the side surface direction of the wiring apparatus same as the above. It is sectional drawing of the decomposition | disassembly state seen from the bottom face direction of the wiring apparatus same as the above. It is AA sectional drawing of FIG. 1 same as the above. It is BB sectional drawing of FIG. 1 same as the above.

Explanation of symbols

11 Wiring equipment
12 Wiring device plate
13 Wiring equipment
14 Decorative panel
21 Plate body
22 Screw receiving member
24 opening
25 Wiring fixture attachment part
26 Screw receiving member mounting part
39 Screw insertion hole

Claims (4)

Formed in the shape of a rectangular frame having an opening in the center, and provided on both sides of the opening in the short-side direction and facing each other across the opening, and provided at both ends in the longitudinal direction A resin plate body having a mounted screw receiving member mounting portion;
A pair of screw receiving members that are formed of a material that is higher in rigidity than the material of the plate body and that have screw insertion holes and are attached to the respective screw receiving member mounting portions of the plate body;
A plate for a wiring device, comprising: The plate for a wiring device according to claim 1, wherein the screw receiving member has a substantially U-shaped cross section. The dimension of the screw receiving member in the direction corresponding to the short direction of the plate body is larger than the dimension of the installation hole provided in the wall surface material for mounting the wiring device plate, and at least a part of the screw receiving member is larger than the installation hole. The plate for a wiring device according to claim 1, wherein the plate protrudes in the longitudinal direction of the plate body. A wiring device plate according to any one of claims 1 to 3;
A wiring device attached to the wiring device plate;
A decorative panel applied to the front surface of the wiring device plate;
A wiring device comprising:

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