JP2809279B2 - Plate frame for wiring equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device plate frame in which an opening surface of an embedding hole, such as a wall surface, is arranged aside.

[Prior Art] FIG. 5 shows a mounting frame 1 made of an insulating material to which a conventional wiring device such as a switch is detachably attached, and FIG. 6 is a view showing a construction state. The mounting frame 1 is made of a synthetic resin, and has an opening 2 in the center where a wiring device 8 is arranged. Elongated holes 5 through which screws for screwing into the screw holes 4a of the mounting pieces 4 of the embedding box 3 are inserted are formed above and below the mounting frame 1. Also, screw holes 9 are provided above and below the long hole 5 into which screws 7 for attaching the decorative plate 6 are screwed.
An opening 6 a for exposing the wiring device 8 is opened at the center of the decorative plate 6. The illustrated mounting frame 1 has such a size that three wiring devices 8 each having a size of one module can be arranged vertically. On one side piece 10 of the mounting frame 1, three pairs of locking holes 12 penetrating left and right are formed. The other side piece 11 of the mounting frame 1 is integrally formed with a locking side piece 13 which is parallel to the side piece 11 and has flexibility below the side piece 11. The side piece 11 of the mounting frame 1 and the locking side piece are formed by bridging pieces 14 at both ends of the locking side piece 13 and two intermediate points.
13 are integrally connected.

A flexible locking claw 15 having a convex shape is integrally and projecting upward from the locking side piece 13 between the bridging pieces 14, and a release piece 15 a at a central portion is an outer surface of the side piece 11. The step 15b on both sides of the release piece 15a is located behind the back of the side piece 11, and the locking hole 16 facing the locking hole 12 is formed by the step 15b and the side piece 11. Has formed.

By the way, as shown in FIG. 6, a wiring device 8 constituting a switch attached to the mounting frame 1 has an outer shell composed of a body 8a and a cover 8b. The body 8a and the cover 8b are assembled by two metal assemblies. The two are assembled by frame 17 and joined together.
A pair of locking pieces 18 are integrally formed on the outer side of the assembly frame 17 so as to protrude sideways.
The wiring device 8 is detachably attached to the attachment frame 1 by being inserted and locked to the 12, 16. Here, the attachment and detachment of the wiring device 8 can be facilitated by bending the locking claw 15 of the locking side piece 13 when attaching and detaching the wiring device 8. In another wiring device 8 'shown in FIG. 6, a locking piece 18 is integrally formed with the housing so as to project from the housing.
Attached to.

After the wiring device 8 and the like are mounted on the mounting frame 1, the rear surface of the mounting frame 1 is inserted into the opening surface of the construction surface 19 and abuts against the front surface of the mounting piece 4. The mounting frame 1 is fixed to the embedding box 3 by screwing through the holes 5. Then, the decorative plate 6 is brought into contact with the front surface of the construction surface 19, the screws 7 are screwed into the screw holes 9 of the mounting frame 1, and the decorative plate 6 is fixed to the construction surface 19 via the plate frame 20.

[Problem to be Solved by the Invention] In such a conventional example, since the mounting frame 1 and the plate frame 20 are separate, the decorative plate 6 must be mounted on the mounting frame 1 via the plate frame 20. However, there is a problem that workability is poor.

The present invention has been provided in view of the above points,
The plate frame body is formed by integrating the conventional mounting frame and plate frame, and the wiring device can be detachably attached to the plate frame body to improve workability, and the strength of the locking side piece itself. It is intended to provide a wiring device plate frame for the purpose of increasing the force of the locking side piece to sufficiently secure the locking force of the wiring device and greatly improving the mounting property of the wiring device.

Means for Solving the Problems According to the present invention, a flat plate frame main body is provided in which a decorative plate is mounted on a front surface, has two openings on both sides of a central piece, and has an opening surface of an embedding hole which covers an alligator. A first locking hole into which one of the locking pieces protruding from the wiring device is inserted and locked is formed on both sides of the center piece of the plate frame main body. The other locking piece of the wiring device is inserted and locked between flexible side locking pieces parallel to the side piece and having both longitudinal ends connected to the plate frame body, respectively. A second locking hole is formed facing the first locking hole, and a plurality of long holes are formed along the length direction of the outer piece provided outside the locking side piece of the plate frame body. Forming, providing a thin flexible piece inside the long hole, and bridging the flexible piece and the locking side piece integrally via a support In both cases, the plate frame main body has means for attaching to the embedding box embedded in the embedding hole.

[Operation] A locking side piece for locking the other locking piece of the wiring device of the plate frame body is provided, and a length direction of the outer piece provided outside the locking side piece of the plate frame body is provided. Since a plurality of long holes are formed along the inside of the long holes, a thin-walled flexible piece is provided, and the flexible piece and the locking side piece are integrally bridged via a support post. When the support pushes the flexible piece outward (toward the long hole), the thin-walled flexible piece is easily bent outward, and the locking side piece is also easily bent outward. Since the locking side piece itself has flexibility, the ease with which the bending piece is bent outwards makes it extremely easy to attach and detach the wiring device, further improving workability. Further, by connecting the thin-walled flexible piece to the locking side piece via the support, sufficient flexibility of the locking side piece can be obtained even if the locking side piece is made thick, for example. The strength of the side piece itself can be increased, so that even when force due to the switch operation of the wiring device is frequently applied to the locking side piece, the locking force of the wiring device by the locking side piece can be sufficiently secured. It has become.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. It should be noted that the present invention is characterized in that a conventional general mounting frame made of an insulating material and a plate frame made of the insulating material are integrated into a two-unit type. Portions having similar functions are given the same numbers. The description will be made in comparison with a conventional mounting frame so that the features of the present application can be easily understood.

In FIG. 1, a rectangular frame-shaped plate frame main body 21 is formed by integrally integrating members with an insulating material, and a central piece 22 is provided at a central portion thereof on both sides to form openings 2a and 2b. It is. The openings 2a and 2b are large enough to accommodate three standardized wiring devices each having a module size. It should be noted that the plate frame body 21 of the present invention
Since two openings 2a and 2b and the components formed around them are the same, one opening 2a will be described, but the other opening 2a will be described.
The same applies to 2b. That is, elongated holes 5 as attachment means for attaching to the embedding box are formed in upper and lower portions of the opening 2. The thickness of the plate frame body 21 is substantially the same as the thickness of a general plate frame. Plate frame body
Three sets of a pair of locking holes 12 are formed in the opening of the central piece 22 in the same manner as in the prior art. Side piece 23 of plate frame body 21
A locking side piece 24 is formed to form a locking hole 16 as in the prior art. As shown in FIG. 1 (c), the locking side piece 24 protrudes from the back surface of the plate frame main body 21, and the front side of the locking side piece 24 is recessed behind the side piece 23. . And, as shown in FIG. 1 (b), inside the locking side piece 24,
A locking hole 16 into which the locking piece 18 of the wiring device 8 is inserted is formed, and a pair of guide portions is provided below (backward) the locking hole 16.
41 is formed integrally with the inner surface of the locking side piece 24.

On the inner surface below the guide portion 41, the locking piece 18 of the wiring device 8 is provided.
A taper surface 43 is formed to guide the tape when inserted from the back, and ribs 42 are integrally formed inside the pair of guides 41, respectively. As shown in FIGS. 1 (b) and 4, a rib-shaped step portion 51 is formed on the upper surface (front surface) of the guide portion 41, and between the step portion 51 and the locking side piece 24. The recess 51a (first
(B) of FIG. The lower part 42a of the rib 42 guides the locking piece 18 of the wiring device 8 from both sides, and the upper part of the pair of ribs 42.
The locking piece 18 inserted into the locking hole 16 via the tapered surface 43 by 42b and positioned on the front surface of the step portion 51 is positioned. Here, the locking hole 16 is formed in a space surrounded by the lower surface of the inner piece 23a of the side piece 23, the step portion 51, and the upper portion 42b.

The side piece 23 on the locking side piece 24 side of the plate frame body 21 has an inner piece 23a and an outer piece 23b formed in parallel through a space, and is connected at both ends, and between the two pieces 23a, 23b. Lock side piece 24
Is provided. Both ends of the flexible locking side piece 24 have slits 44 in the center as shown in FIGS.
A thin, flexible connecting portion 44 which is bent into a substantially U-shape through a is formed, and this connecting portion 44 is formed by a slit 44a.
In addition, both ends of the locking side piece 24 are formed in a flat plate shape, and the rigidity of the locking side piece 24 is reduced so that the locking side piece 24 is easily bent. Therefore, by providing the slit 44a in the connecting portion 44, the locking side piece 24 is easily bent, the mounting force (push force) of the wiring device 8 is reduced, and the attachment / detachment is facilitated.

At two places at the center of the side piece 23, there are columns 52, 53 between the inner piece 23a and the locking side piece 24 and the locking side piece 24 and the outer piece 23b, respectively.
Are integrally crosslinked. The portions of the locking side piece 24 other than the vicinity of the posts 52 and 53 and the vicinity of the connecting portion 44 (the perspective portions in FIGS. 1A and 1B) are formed thin, and the locking side piece 24 when attaching and detaching the wiring device 8 is formed. Makes deflection easier. Connection part of locking side piece 24
The portions near 44 and the posts 52 and 53 are not formed thin in order to increase the pushing strength after the wiring device 8 is mounted. In this way, by making the portions other than the vicinity of the posts 52 and 53 thin, the pushing force at the time of mounting the wiring device 8 is made uniform,
It is easy to put on and take off.

Further, two long holes 45 are formed in the outer piece 23b, and the inside of the long hole 45 is formed as a thin flexible piece 46.
And the locking side piece 24 are integrally bridged by a support 53. Therefore, when the wiring device 8 is attached or detached, the support column 53 pushes the bending piece 46 outward to facilitate bending of the locking side piece 24. In addition, as shown in FIG. 1 (b), the column 53 has a recess 53a on the back (lower surface) side thereof.
By making the thickness of the column 53 thinner by the recess 53a and making the column 53 thinner as described above, the locking in the pushing direction by the locking piece 18 of the wiring device 8 can be performed as compared with the case where the column 53 is not provided. The deflection of the side piece 24 is 60%, and the mountability of the wiring device 8 is improved as compared with the case where the support pillar is thick.

Here, the connecting portion 44 of the locking side piece 24 and the supporting portion 22a of the side piece 23 forming the locking hole 12 shown in FIG. 1D do not protrude from the back surface of the plate frame main body 21. There is no need to worry about building materials. The corners protruded in the conventional insulating mounting frame. Protruding from the back surface of the plate frame body 21 is the locking side piece 24, and the protruding portion is minimized, which does not require the precision of drilling and improves workability. . Further, since only the guide portion 41 of the locking side piece 24 protrudes from the back surface of the plate frame main body 21, the entire height (thinness) of the plate frame main body 21 can be reduced.

Also, the periphery of the rear surface of the plate frame main body 21 is a flat surface, and the projections are prevented from protruding from the rear surface of the plate frame main body 21 except for the locking side pieces 24, so that the rear surface of the plate frame main body 21 is Installation is easy. Plate frame body 21
Engagement holes 28 penetrating back and forth are formed in the upper, lower, left and right directions. The front surface of the plate frame body 21 is recessed one step behind the peripheral edge, and a decorative plate 26 having two openings 26a for exposing the head of the cover 8b of the wiring device 8 is fitted in the center of the front surface. You. As shown in Fig. 2, decorative plate
On the back side of 26, a plurality of hooks 27 having a hook-like shape and having elasticity are integrally formed. The hooks 27 are engaged with the engagement holes 28 of the plate frame main body 21, and the decorative plate 26 is fitted to the front surface of the plate frame main body 21. The size of the decorative plate 26 is substantially the same as the size inside the peripheral edge of the plate frame main body 21, and the decorative plate 26 is mounted on the plate frame main body 21 with good appearance. In addition, wiring equipment 8
Although FIG. 2 uses a switch in FIG. 2, an outlet may be used.

The mounting of the plate frame main body 21 into the embedding hole in the wall is performed as follows. That is, one locking piece 18 of the wiring device 8 is inserted and locked by the central piece 22 of the plate frame main body 21 in the locking hole 12, and the other locking piece 18 of the wiring device 8 is connected to the other side piece. Insert and lock into the 23 locking holes 16. At this time, when the locking piece 18 is inserted into the locking hole 16, first, the locking piece 18 slides along the tapered surface 43 of the guide portion 41 and the stepped portion 51.
The locking side piece 24 bends as described above to facilitate insertion of the locking piece 18 into the locking hole 16. After insertion into the locking hole 16, the upper part 42 of the pair of ribs 42
The locking piece 18 is locked by the position b, and the wiring device 8 is attached to the plate frame body 21.
In order to remove the wiring device 8 from the plate frame body 21,
Inserting the tip of a screwdriver or the like into the slit 47 between the locking side piece 24 and the inner side piece 23a and bending the locking side piece 24 outward, the locking piece 18 of the wiring device 8 is moved to the locking side. It can be easily removed from the locking hole 16 formed in the piece 24.

Next, screws are screwed into the screw holes of the embedding box from the front via the long holes 5 of the plate frame body 21. At this time, in the case of this embodiment, the plate mounting body is compared with the case where the insulating mounting frame to which the wiring device is mounted is conventionally mounted in the embedding hole.
Since the periphery of the back of the plate 21 is a flat surface, the size of the embedding hole should be at least as large as the width of the wiring device 8 including the locking side piece 24. The plate frame main body 21 can be easily attached to the front surface of the embedding hole by abutting on the construction surface and screwing the screw into the embedding box via the elongated hole 5. After attaching the plate frame main body 21 to the construction surface, as described above, the hook 27 of the decorative plate 26 is inserted into and engaged with the engaging hole 28 from the front surface, so that the decorative plate 26 is inserted into the plate frame main body 21. Is done.
In this way, the wiring device 8 can be fixed with one touch,
Further, since the present plate frame main body 21 has a structure in which the conventional plate frame and the insulating mounting frame are integrated, the labor for mounting the plate frame on the conventional mounting frame is omitted, and the workability is improved. Further, since the conventional plate frame and the mounting frame are integrated, the strength is increased as compared with the conventional combination of the plate frame and the mounting frame. Also, since there is no protrusion from the back of the plate frame main body 21 except for the locking side piece 24, even if the embedding hole on the construction surface is small, the plate frame main body 21 does not protrude.
But there is no worry that he will not be able to get on the construction side. Further, since the plate frame main body 21 is formed thin and flat, there is no uncomfortable feeling as compared with other plate frames.

[Effects of the Invention] As described above, the present invention forms a flat plate frame main body with a decorative plate attached to the front surface, two opening portions on both sides of the central piece, and an opening surface of the embedding hole covering the rim. A first locking hole into which one of the locking pieces protruding from the wiring device is inserted and locked is formed on both sides of the center piece of the plate frame main body. The other locking piece of the wiring device is inserted and locked between flexible side locking pieces parallel to the side piece and having both longitudinal ends connected to the plate frame body, respectively. A second locking hole is formed facing the first locking hole, and a plurality of long holes are formed along the length direction of the outer piece provided outside the locking side piece of the plate frame body. Formed, and a thin-walled flexible piece is provided inside the long hole, and the flexible piece and the locking side piece are integrally bridged via a support post. Since the plate frame body has means for attaching to the embedding box embedded in the embedding hole,
A conventional plate frame main body in which a mounting frame and a plate frame are integrated is mounted on a construction surface via mounting means. The plate frame main body facilitates mounting of wiring equipment, and has two openings. Therefore, the number of wiring devices can be increased as necessary. In addition, since the plate frame body has a structure in which the conventional plate frame and the insulating mounting frame are integrated, the plate frame is mounted on the conventional mounting frame. This saves labor and improves workability and workability. Further, since the conventional plate frame and the mounting frame are integrated, the strength is improved as compared with the conventional combination of the plate frame and the mounting frame. In addition, when the wiring device is attached or detached, the supporting column pushes the bending piece outward (toward the long hole), so that the bending piece bends outward, whereby the locking side piece easily bends outward. Since the attachment / detachment operation of the device is easy, and the locking side piece itself is also flexible, the attachment / detachment of the wiring device becomes extremely easy in combination with the ease of outward bending by the bending piece, and the workability is improved. Further improve.
Further, by connecting the thin-walled flexible piece to the locking side piece via the support, sufficient flexibility of the locking side piece can be obtained even if the locking side piece is made thick, for example. As a result, the strength of the side piece itself can be increased, so that even if the force of the switch operation of the wiring device is frequently applied to the locking side piece, the locking force of the wiring piece by the locking side piece can be sufficiently secured. ,
It is possible to greatly improve the mountability of the wiring device.

[Brief description of the drawings]

1 (a) to 1 (d) are front views of a plate frame main body according to an embodiment of the present invention, a cutaway front view including a line A-D 'in FIG. 1 (a), and FIG. 1 (a). FIG. 2 is an exploded perspective view of the same, and FIG.
FIG. 4 is a perspective view of an essential part of the same, FIG.
(A) to (c) are a front view, a cross-sectional view, and a plan view of a mounting frame formed of an insulating material of a conventional example, and FIG. 6 is an exploded perspective view showing a construction state of the conventional example. 2 is an opening, 8 is a wiring device, 12 is a first locking hole, 16 is a second locking hole, 18 is a locking piece, 21 is a plate frame main body, 22 is a center piece, 23 is a side piece, 23a is an inner piece, 23b is an outer piece, 24 is a locking side piece, and 26 is a decorative plate.

Claims (1)

(57) [Claims] 1. A flat plate frame main body having a decorative plate mounted on a front surface, having two openings on both sides of a center piece and covering an opening surface of an embedding hole, is formed. First locking holes into which one of the locking pieces protruding from the wiring device is inserted and locked are formed on both sides of the piece, respectively, and both side pieces of the plate frame main body are parallel to the side pieces. A second locking hole into which the other locking piece of the wiring device is inserted and locked between a flexible locking side piece whose both ends in the longitudinal direction are connected to the plate frame body, respectively. A plurality of long holes are formed along the length direction of the outer piece provided outside the locking side piece of the plate frame main body and formed in opposition to the first locking hole. A thin-walled flexure piece is provided, the flexure piece and the locking side piece are bridged integrally via a support, and embedded in the embedding hole. Wire instrument comprising a mounting means for the buried box plate frame body plate frame.