JP2749372B2 - Plate frame for wiring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method in which an opening surface of an embedding hole such as a wall surface is arranged on an alligator,
The present invention relates to a wiring device plate frame to which a switch, an outlet, and the like are mounted.

[Prior Art] FIG. 6 shows a conventional example, in which one side piece of a plate frame main body 50 has a fixed side fixing rib 53 and the other side piece has a movable side bending piece 51. An inclined surface 55 for inserting the outlet 3 as a wiring device is formed in the bending piece 51. In this conventional example, after one locking piece 5 of the outlet 3 is first inserted and locked into the step portion 54 of the fixed rib 53 on the fixed side, the other locking piece 5 is brought into contact with the inclined surface 55 of the bending piece 51. By contacting and extending, the bending piece 51 is bent outward, and is locked to the step 52 of the bending piece 51.

[Problem to be Solved by the Invention] In such a conventional example, the movable-side bending piece 51 has a bending structure and a structure having an inclined surface 55 for inserting an instrument.
Since these two functions are provided, there is a problem in that it is structurally impossible and it is difficult to make the flexible piece 51 rigid.

In addition, when a wiring device is generally mounted, a plate frame is configured by a movable portion on one side and a fixed portion on the other side that does not bend, but in a plate frame having two sets of openings,
If the movable part and the fixed part are arranged side by side as they are,
At the center of the plate frame, the movable portion and the fixed portion are adjacent to each other, and the movable portion bends, so that the locking portion of the locking piece cannot be shared.

The present invention has been provided in view of the above points,
The movable side has a flexure structure, and the fixed side has an inclined surface for instrument insertion.The functions are divided so that the movable side flexure has rigidity, and both sides of the plate frame main body. It is an object of the present invention to provide a wiring device plate frame in which a movable portion is provided with a fixed portion at a central portion so that the fixed portion side of the locking portion of the locking piece can be shared.

Means for Solving the Problems According to the invention of claim 1, a decorative plate is mounted on the front surface,
A plate frame body having two sets of openings for exposing the wiring device in the center and covering the opening surface of the embedding hole is formed, and one side piece of the plate frame body protrudes from both sides of the wiring device. A flexible movable portion for inserting and locking the locking piece of the plate frame body, and a fixing portion for inserting and locking the other locking piece of each of the wiring devices on both sides in the center portion of the plate frame body; A flexible piece that is integrally formed in parallel with the side pieces on both sides and has flexibility in the lateral direction, and a first step portion that is formed on the flexible piece and locks one locking piece of the wiring device. It is characterized by comprising a movable part.

According to a second aspect of the present invention, in the first aspect of the present invention, the fixing portion is inclined such that the other locking piece of the wiring device abuts and follows the wiring piece so that the one locking piece causes the bending piece to flex outward. And a second step portion for locking the other locking piece on the front side of the inclined surface and over the inclined surface.

[Operation] According to the configuration of the first aspect of the present invention, a movable portion is provided on both sides of the plate frame main body and a fixed portion is provided in the central portion so that the fixed portion side of the locking portion of the locking piece can be shared. I have. According to the configuration of the second aspect of the present invention, one of the locking pieces of the wiring device is inserted and locked into the first step portion of the flexible piece of the movable section, and the other locking piece contacts the inclined surface of the fixed section. Along the contact, the bending piece is bent in the lateral direction, and when the locking piece climbs over the inclined surface, the bending piece returns and the locking pieces are locked to both the steps, so that the wiring device is plated. It is designed to be mounted on the frame body.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1 to 4, a plate frame main body 1 made of a synthetic resin is formed in a substantially Japanese character and flat, and a central piece 31
And two openings 2 are provided. An outlet 3 serving as a wiring device is detachably mounted on the plate frame main body 1 with its front surface exposed at the opening 2. The outlet 3 has a body 3a and a cover 3b connected to each other by a pair of metal assembly frames 4, and a pair of locking pieces 5 projecting from side end surfaces of the assembly frame 4, respectively. Note that a switch may be used instead of the outlet 3. The outlet 3 has a size corresponding to one standardized wiring appliance module, and one opening 2 of the plate frame main body 1 is sized so that three outlets 3 can be mounted. Therefore, a total of six outlets 3 can be attached to the plate frame main body 1.

The plate frame main body 1 is installed in front of an opening surface of an embedding box buried in a wall surface or the like. Holes 6 and 7 are respectively formed. A movable portion 34 is formed on both sides of the plate frame main body 1 as described later,
The fixing part 33 is formed on the base 31.

First, the movable section 33 will be described. Plate frame body 1
In the side pieces 8 on both sides, the inner piece 9 and the outer piece 10 are integrally formed in parallel with a gap therebetween. In the gap between the side pieces 9 and 10, a flexible bending piece 11 whose upper and lower ends are integrated with the plate frame body 1 is formed. At two places on both sides of the bending piece 11, the inner surfaces of the both sides pieces 9 and 10 are connected by bridging pieces 12 and 13. A slit 14 is formed in the outer piece 10 to form a thin piece 15 having a thinner inner portion, and the bridging piece 12 is coupled to the thin piece 15 to make the flexible piece 11 bend easily. The bending piece 11 is formed so as to bend in the lateral direction as indicated by the arrow in FIG. Therefore, since the bending piece 11 has only a lateral displacement, a structure in which the bending piece 11 has rigidity can be easily obtained.

As shown in FIG. 3 as viewed from the rear side, three sets of a pair of recesses 16 are formed on the inner surface of the bending piece 11, and as shown in FIG. Locking piece 5 of outlet 3
Is a step 17 to be locked. The rear end of the bending piece 11 is formed to protrude rearward from the outer piece 10, and the step 17 is formed rearward than the outer piece 10.

Next, the fixing portion 33 will be described. As shown in FIGS. 1 and 4 (d), a fixing rib 19 is integrally formed on the back surface of the central piece 31 of the plate frame main body 1. On both sides of the central piece 31, the following configuration is made corresponding to each opening 2. Since both surfaces of the fixing rib 19 are formed symmetrically, only one surface will be described. A recess 20 that penetrates the front and rear is formed on the fixing rib 19 side, and a pair of step portions 21 is provided on the back side of the recess 20.
Are formed. The step part 21 is a front plate 31a of the central piece 31.
Is formed behind the rear surface of the socket 3 to lock the locking piece 5 of the outlet 3. As shown in FIG. 1, an inclined surface 22 is formed at the back corresponding to the step 21 on the side surface of the fixing rib 19, and the locking piece 5 of the outlet 3 comes into contact with the inclined surface 22. As a result, the bending piece 11 is bent outward by the other locking piece 5.

The front surface of the plate frame body 1 is recessed one step from the surroundings,
A decorative plate 23 is detachably mounted on the front surface. That is, a plurality of engaging pieces 24 are integrally formed on the rear surface of the decorative plate 23 to protrude, and an engaging hole 25 for engaging with the engaging pieces 24 is formed in the plate frame main body 1. The decorative plate 23 has an opening window 26 for exposing the front surface of the outlet 3 having the blade insertion hole.
In this embodiment, a decorative plate 23 for one wiring device is used according to each opening 2. Therefore, it is sufficient to use the decorative plate 23 provided with the opening windows 26 corresponding to the number of wiring devices used according to the number of wiring devices used. Holes are provided at the four corners of the plate frame main body 1 for locking for mounting a fireproof plate.
27 are drilled.

Between the pair of recesses 20 of the central piece 31 of the plate frame main body 1, an insertion hole 29 for inserting a driver 28 for releasing the outlet 3 is provided penetrating in the front-rear direction. As shown in FIG. 5, a chamfered portion 30 is formed on the inner side surface of the insertion hole 29 to increase the degree of freedom of the driver 28.

Next, an operation of attaching and detaching the outlet 3 to and from the plate frame main body 1 will be described. First, as shown in FIG. 1, one locking piece 5 of the outlet 3 is inserted and locked into the step 17 on the bending piece 11 side, and the other locking piece 5 is fitted along the inclined surface 22 of the fixing rib 19. To the front. The outlet 3 is moved toward the bending piece 11 by abutting and making contact with the inclined surface 22. Therefore, one locking piece 5 urges the bending piece 11 outward to bend. When the other locking piece 5 climbs over the inclined surface 22 and locks on the stepped portion 21, the outlet 3 returns to the inside of FIG. 17,2
The outlet 3 is attached to the plate frame main body 1 while being locked to 1 and in contact with the back surface of the plate frame main body 1. That is, one of the locking pieces 5 of the outlet 3 is first inserted into the movable piece 34 on the movable side 34 on the flexible piece 11 side, and the movable side flexible piece 11 is moved outward by the inclined surface 22 of the fixed section 33 on the fixed side. It is a structure that is pushed out and fitted. That is, the locking piece 5
The bending piece 11 on the side of the step 17 for inserting and locking the first is bent in the lateral direction, and the side of the fixing rib 19 on the side of the step 21 to be inserted later is not bent. The same applies to the installation of the outlet 3 in the other opening 2.

Next, when the outlet 3 is detached from the plate frame main body 1, the following operation is performed. That is, the driver from the front
28 is inserted into the insertion hole 29, and as shown in FIG. 5, the tip of the driver 28 abuts against the end face of the assembly frame 4 between the locking pieces 5,
Fold the driver 28 outward as shown by the dashed line in the figure. Then, the outlet 3 is urged by the screwdriver 28 to the bending piece 11, and the locking piece 5 is removed from the step portion 22, so that the outlet 3 can be easily removed from the plate frame main body 1. Since the cavities are formed by the aging and chamfered portions 30, the degree of freedom of the driver 28 can be increased, and the driver 28 can be easily removed. Also, if the insertion hole 29 itself is enlarged to facilitate release, the strength of the central piece 31 is reduced by the size of the insertion hole 29, but the strength of the central piece 31 is reduced because only the chamfer is performed. Without this, the outlet 3 can be easily released. Where the driver 28
It is also possible to shift the outlet 3 to the bending piece 11 side by hand without using, and release it.

As described above, in the present embodiment, the movable portion 34 is formed symmetrically around the fixed portion 33 formed on the fixed rib 19, and the fixed portion 33 formed on the central piece 31 does not bend. Therefore, the fixing rib 19 can be shared. In addition, since the shape of the fixing rib 19 can be formed symmetrically on both sides, the thickness of the fixing rib 19 can be increased compared to the case where the movable part and the fixed part are separately formed on the central piece, and the strength of the central piece 31 is improved. Can be done.

As shown in FIG. 4 (d), a substantially Japanese-shaped rib 32 is provided on the periphery of the opening 2 to increase the strength of the plate frame main body 1. That is, the strength of the plate frame main body 1 against the pressing of the wiring device, the tightening of the box screw to the push box, and the like is improved.

[Effect of the Invention] According to the invention of claim 1, a decorative plate is mounted on the front surface,
A plate frame body having two sets of openings for exposing the wiring device in the center and covering the opening surface of the embedding hole is formed, and one side piece of the plate frame body protrudes from both sides of the wiring device. A movable portion capable of inserting and locking a locking piece of the same and providing a flexible portion, and a fixing portion for inserting and locking the other locking piece of each of the wiring devices on both sides in a center portion of the plate frame main body; A flexible piece that is integrally formed in parallel with the side pieces on both sides and has flexibility in the lateral direction, and a first step portion that is formed on the flexible piece and locks one locking piece of the wiring device. Since the movable portion is configured, a movable portion is provided on each side of the plate frame main body for inserting and locking one of the locking pieces of each of the wiring devices on both sides. A fixing portion for inserting and locking each other locking piece of The locking part of the stop piece can be shared, and compared to the case where the movable part and the fixed part are separately provided in the center as in the past, by forming only the fixed part in the center, It can be formed with sufficient dimensions, and
By increasing the thickness of the fixing portion, the strength of the plate frame main body can be improved. Further, as in the related art, a movable portion and a fixed portion are separately provided in a central portion, and a fixed portion is provided on one side and a movable portion is provided on the other side on both sides.
One wiring device has an attachment sequence in which one locking piece is first locked to the side movable portion, and then the other locking piece is locked to the central fixed portion while the movable portion is flexed and deformed. But,
The other wiring device has a mounting sequence in which one locking piece is locked first to the movable portion in the center, and then the other locking piece is locked to the fixed portion on the side while flexing and deforming the movable portion. hand,
In the wiring devices on both sides, the mounting order is reversed, erroneous mounting operations are easily performed, and the mounting operation is troublesome. Since a movable portion for inserting and locking one of the locking pieces is provided, and a fixing portion for inserting and locking the other locking piece of each of the wiring devices on both sides is provided in the center portion, In mounting the wiring devices on both sides, first of all, the wiring devices on both sides must first bend the movable portion with one locking piece locked on the movable portion provided on the side of the plate frame body. While the other locking piece can be mounted by the mounting method of locking to the fixed portion at the center, the mounting order of the wiring devices on both sides becomes the same order, and the mounting order is correctly installed without mistake. thing Can, in which is provided an advantage of being able to simplify the mounting operation.

According to a second aspect of the present invention, in the first aspect of the present invention, the inclined surface is configured such that the movable portion is brought into contact with the other locking piece of the wiring device so that the bending piece is bent outward by one locking piece. And a second step for locking the other locking piece on the front side of the inclined surface and riding over the inclined surface, so that the first step of the flexible piece of the movable portion is formed. One of the locking pieces of the wiring device is inserted and locked, and the other locking piece is along the inclined surface of the fixing portion, and the bending piece is bent laterally, and the locking piece has climbed over the inclined surface. At this time, the flexure piece returns, and both locking pieces are locked on both step portions so that the wiring device is mounted on the plate frame body. Therefore, the movable-side flexure piece is bent in the lateral direction. Since it is sufficient to have only the structure, it is possible to adopt a structure in which the bending piece has rigidity, and the fixed side has an inclined surface. Due to the formation, in which is provided an advantage of being able to reduce the insertion force of the wiring accessories.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an attached state of an embodiment of the present invention, and FIG.
FIG. 3 is an exploded perspective view of the same, FIG. 3 is a perspective view of a main part of the bending piece as viewed from the back, FIGS. 4 (a) to 4 (d) are front views of the plate frame main body, and FIG. FIG. 4A is a cutaway bottom view of the line A-E ', FIG. 4A is a cross-sectional view of the line F-I', and FIG.
The figure is a sectional view of a conventional example. 1 is a plate frame main body, 2 is an opening, 5 is a locking piece, 11 is a bending piece, 17 is a first step, 21 is a second step, 22 is an inclined surface,
23 is a decorative plate, 33 is a fixed part, and 34 is a movable part.

 ──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-64-81609 (JP, A) JP-A-1-69310 (JP, U) JP-A-57-155918 (JP, U)

Claims (2)

(57) [Claims] 1. A plate frame body having a decorative plate mounted on a front surface, two sets of openings for exposing a wiring device in a central portion, and a plate frame main body covering an opening surface of an embedding hole is formed, and both sides of the plate frame main body. A flexible portion is provided on one side piece for inserting and locking one locking piece protruding from both sides of the wiring device, and the other locking piece of each wiring device on both sides is provided at the center of the plate frame body. A fixing portion for inserting and locking each is provided, and a flexible piece formed in parallel with the side pieces on both sides of the plate frame main body and having flexibility in the lateral direction, and one of the wiring devices formed on the flexible piece is provided. A plate frame for wiring equipment, wherein said movable portion is constituted by a first step portion for locking a stop piece. 2. A fixing device comprising: an inclined surface for bending the bending piece outwardly by one of the locking pieces when the other fixing piece of the wiring device abuts along the fixing portion; and a front side of the inclined surface. 2. The wiring device plate frame according to claim 1, further comprising a second step portion for locking the other locking piece that has climbed over the inclined surface.