JP2001086622A - Mounting frame for wiring accessory - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance workability in manufacturing. SOLUTION: A latching piece 10 is formed out of a plate-shaped metal member having flexibility (spring properties), and in which a fixed part 11 fixed to a side 2b, and three latching pieces 12 bent from the end along the longitudinal direction of the fixed part 11 to a back face side are integrally formed. By dropping and inserting the latching pieces 12 respectively from the above into respective inserting grooves 8 of the side 2b of the frame body 1 mounted roughly horizontally, a protrusion 7 for fixing the side 2b is inserted into an inserting hole 11a in the fixing part 11 to be positioned, so that the latching piece 10 is temporarily fixed to the side 2b of the frame body 1. It is thus possible to prevent the latching piece 10 from being displaced and rattling when the front end of the protrusion 7 for fixing is caulked, thereby enhancing workability in manufacturing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting frame for a wiring device used for embedding a wiring device such as a switch or an outlet on a construction surface such as a wall surface.

[0002]

2. Description of the Related Art Conventionally, in order to lay a wiring device such as a switch or an outlet on a construction surface such as a wall surface, a metal wiring device mounting frame as shown in FIG.
30) is used. The mounting frame 30 is mounted on the opening surface side of an embedding box 50 buried in a wall by mounting screws (box screws) 51, 51, and a plate frame 52 made of synthetic resin is further mounted with screws 53, 51.
53 and attached to the front
A decorative plate 54 is attached to the front surface of. Engagement projections 32a and 32b are provided on both sides 31a and 31b of the mounting frame 30 to engage with grooves 22a provided on the assembly frames 22 and 22 of the wiring device 20, and a groove is formed on one side 31b. A hole 33 is provided, and a thin portion 34 is formed between the hole 33 and the opening window 30a. Here, the mounting frame 30
The wiring device 20 is attached to the mounting frame 30 by inserting a part of the wiring device 20 into the opening window 30a of the mounting frame 30 so that the engagement protrusion 32a of the one side 31a is engaged with the groove 22a of the assembly frame 22 on one side. Then, the thin portion 34 is projected and deformed by inserting and prying a tool such as a screwdriver into the slot 33, and the engaging projection 32b of the other side 31b is engaged with the slot 22a of the assembly frame 22 on the opposite side. It is done by that. In this case, when the wiring device 20 is attached to the mounting frame 30, the wiring device 2 is partially inserted into the opening window 30 a of the mounting frame 30.
While the operator has to manually position and hold 0, the thin portion 34 must be protruded and deformed by a tool such as a screwdriver, which has a problem of poor workability.

In order to solve the above problem, a mounting frame 40 as shown in FIG. 14 has already been proposed (see Japanese Utility Model Publication No. 58-52816). This mounting frame 40
Is provided on one side 41a with an engagement protrusion 42a for engaging with a groove 22a provided on the assembly frame 22 of the wiring device 20, and a locking piece 43 as shown in FIGS. The engaging portion 43a of the engaging piece 43 is inserted into the notch 23 below the engaging claw 22b of the assembly frame 22. It is.

[0004] One of the assembly frames 22 is inserted so that a part of the wiring device 20 is inserted into the opening window 40 a of the mounting frame 40.
The engagement protrusion 42a of the mounting frame 40 is engaged with the groove 22a of
In this state, the locking piece 43 enters the notch 23 and the locking portion 43
a enters the recess 24 of the wiring device 20 below the locking claws 22b, 22b, and the wiring device 20 is attached to the mounting frame 40. That is, unlike the conventional example described above, the wiring device 20 can be easily mounted on the mounting frame 40 without using a tool such as a screwdriver. In this case, when the wiring device 20 is removed from the mounting frame 40, the hooked-off portion 43b of the locking piece 43 is pressed by the driver 60 as shown in FIG. The locking with the locking claws 22b, 22b is released.

[0005]

By the way, in the latter conventional example, the fixing portion 43c of the locking piece 43 is mounted on the mounting frame 4c.
The fixing portion 43 is fixed to the rear side of the side portion 41b. The fixing portion 43 and the side portion 41b must be positioned and held at the time of fixation. The work was very difficult because it was fixed to the side portion 41b.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mounting frame for a wiring device capable of improving workability during manufacturing.

[0007]

In order to achieve the above object, the invention according to claim 1 has a pair of opposed side portions and a connecting portion for connecting both side portions, and is surrounded by the side portion and the connecting portion. A frame body for holding the wiring device in a form in which a part of a plurality of wiring devices is inserted into the opening window, fixing means for fixing the frame body to a construction surface such as a wall surface, and a side of the opening window from one side. A plurality of engaging projections protruding into the groove provided on the side surface of each wiring device, a plurality of locking pieces and a plurality of locking members releasably engaging with locking claws protruding on the side surface of each wiring device. And a locking portion which connects the locking piece and is fixed to the other side portion, the locking portion being integrally formed by a flexible member, and the locking portion is provided on the side portion to protrude. The fixing piece is provided with an insertion hole through which the fixing projection is inserted, and each locking piece is inserted into a plurality of insertion grooves provided on the side. It is characterized in that the distal end of the fixing projection protruding from the insertion hole is caulked in a state where it is inserted from, for example, the locking pieces are respectively placed in the respective insertion grooves on the side of the frame body placed substantially horizontally. When it is dropped and inserted, the fixing protrusion on the side portion is inserted into the insertion hole of the fixing portion to be positioned, and the locking portion is temporarily fixed to the side portion of the frame body. As a result, when the tip of the fixing projection is swaged, the displacement and rattling of the locking portion can be prevented, and the workability at the time of manufacturing can be improved.

According to a second aspect of the present invention, in the first aspect of the present invention, an insertion groove is provided in the side portion and a tongue piece which is vertically provided rearward from an edge of the side portion, and a locking piece inserted through the insertion groove. Is formed so as to be able to flex freely in a direction away from the opening window, and a restricting portion for restricting the amount of bending of the locking piece is provided on the tongue, and the restricting portion provided on the tongue when removing the wiring device. Since the contact portion restricts the amount of bending by contacting the locking piece, it is possible to prevent the locking piece from bending more than necessary and being plastically deformed.

According to a third aspect of the present invention, in the first aspect of the present invention, the fixing piece is provided with a release hole which penetrates in the front-rear direction and communicates with the insertion groove to insert a tool for bending the locking piece. The tip of the tool inserted into the release hole from the front of the frame body contacts the locking piece through the insertion groove,
If the locking piece is bent by the tool, the locked state of the wiring device with the locking claw can be released, and the wiring device can be easily removed.

According to a fourth aspect of the present invention, in the first aspect of the present invention, a contact piece for contacting a body of the wiring device held by the frame main body is provided at the locking portion. Abuts against the body of the wiring device, it is possible to prevent rattling of the wiring device with respect to the frame body.

According to a fifth aspect of the present invention, in the first aspect of the invention, a reinforcing rib is provided at a connecting portion of the frame main body, and the strength of the frame main body is improved to prevent deformation such as bending or warping. Can be prevented.

[0012]

(Embodiment 1) Embodiment 1 of the present invention will be described in detail with reference to FIGS.

As shown in FIG. 2, the frame main body 1 of the wiring device mounting frame (hereinafter, abbreviated as "mounting frame") A1 of the present embodiment is made of metal and has a pair of opposed side portions 2a and 2b. Connecting portions 3 and 3 for connecting both side portions 2a and 2b, and side portions 2a and 2
b and an opening window 4 surrounded by the connecting portions 3 and 3. Further, each of the connecting portions 3 and 3 has an elongated screw insertion hole 3 through which an attachment screw 51 (see FIG. 13) for attaching the frame body 1 to the embedding box 50 is inserted.
a, metal clip locking grooves 3b, 3b for locking a metal clip (not shown) for mounting the frame body 1 to a wall material such as a wall panel forming a wall surface, and a plate frame 52. A screw hole 3c into which the screw 53 is screwed is provided.
Reinforcing ribs 3d are protrudingly provided at portions of the connecting portions 3 and 3 between the screw insertion hole 3a and the opening window 4 and at portions outside of the clamp fitting grooves 3b and 3b. The reinforcement ribs 3d improve the strength of the frame body 1 to prevent the frame body 1 from being deformed such as bending or warping.

One of the side portions 2a has an outer edge (the side opposite to the opening window 4) along the longitudinal direction bent forward.
At the inner edge (side facing the opening window 4) along the longitudinal direction of the side portion 2 a, a member that projects toward the opening window 4 and engages with the groove 22 a provided in the assembly frame 22 of the wiring device 20. Three projections 5 are provided at equal intervals along the longitudinal direction. Here, in the present embodiment, three standardized wiring devices having a module size (for example, a large-sized continuous wiring device (see JIS C 8304) specified in Japanese Industrial Standards) are arranged in the short width direction. The dimensions of the frame body 1 and the opening window 4 are set so that they can be attached.

A tongue piece 6 is provided to extend rearward from an outer edge (opposite to the opening window 4) along the longitudinal direction of the other side part 2b, and substantially to the tongue piece 6 and the side part 2b. Three convex insertion grooves 8 are arranged in the longitudinal direction. Thus, the locking portion 10 is fixed to the side portion 2b with the locking pieces 12 inserted into the three insertion grooves 8, respectively. Here, in the vicinity of each insertion groove 8 on the front side of the side portion 2b,
As shown in FIGS. 1 and 2, three pairs of fixing projections 7 are protruded. A protruding portion 6a is formed at a portion of the edge along the longitudinal direction of the tongue piece 6 facing each insertion groove 8 by bending the portion toward the fixing piece 11 side. Furthermore, in each insertion groove 8 provided in the tongue piece 6,
A bar-shaped regulating portion 9 is provided along the longitudinal direction of the side portion 2b.

The locking portion 10 is formed of a flexible (spring-like) plate-like metal member, and as shown in FIG.
And three locking pieces 12 bent from the edge along the longitudinal direction of the fixing piece 11 to the back side.
Are integrally formed. The locking pieces 12 are fixed pieces 11
Locking grooves 12a, 12a are provided at both ends in the vicinity.
It is formed in a substantially rectangular shape bent to one side. The pitch of the pair of locking grooves 12a of each locking piece 12 is substantially equal to the pitch of the pair of locking claws 22b projecting from the assembly frame 22 of the wiring device 20. here,
The fixing piece 11 is provided with three pairs of insertion holes 11a into which the fixing protrusions 7 protruding from the front side of the side portion 2b are inserted. Furthermore, at a portion of the fixing piece 11 facing the convex portion 8a of each insertion groove 8, three substantially rectangular release holes 13 penetrating in the front-rear direction are provided in a row along the longitudinal direction of the fixing piece 11. . The other end of the fixing piece 11 along the longitudinal direction has three pairs of abutting pieces 14 respectively abutting on the instrument body 21 of the wiring instrument 20 attached to the attachment frame A1 as described later.
Is protruding.

The locking portion 10 configured as described above is fixed to the side portion 2b of the frame body 1 as follows. That is, the frame body 1 is placed on a substantially flat place with the front side up, and the three locking pieces 12 are respectively dropped from above into the three insertion grooves 8 of the side part 2b as shown in FIG. And insert it. At this time, the insertion hole 11 provided in the fixing piece 11
By inserting a into the fixing protrusion 7 protruding from the front surface of the side portion 2b, the positioning of the locking portion 10 with respect to the side portion 2b can be performed. The fixing piece 11 can be fixed to the side portion 2b by caulking the tip of the fixing projection 7 protruding forward from the insertion hole 11a.

As described above, according to the present embodiment, for example, the locking pieces 12 are dropped from above into the respective insertion grooves 8 of the side portion 2b of the frame main body 1 placed substantially horizontally, and are inserted therethrough. The fixing projection 7 of the side portion 2 b is inserted into the insertion hole 11 a of the piece 11 and positioned, and the locking portion 10 is temporarily fixed to the side portion 2 b of the frame body 1. As a result, the fixing projection 7
When caulking the front end portion, the displacement and rattling of the locking portion 10 can be prevented, and workability during manufacturing can be improved. Moreover, in the present embodiment, since the three locking pieces 12 are integrally formed with the fixing piece 11 to form the locking portion 10,
As compared with the case where each locking piece 12 is formed separately, there is an advantage that the manufacturing becomes easier and the assembling work to the side portion 2b is simplified.

In the state where the locking portion 10 is fixed to the frame body 1, the tip of the locking piece 12 abuts on the front surface of the projection 6a formed on the tongue piece 6, as shown in FIGS. ing. That is, the rearward bending of the locking piece 12 is restricted by the projection 6a, thereby preventing the locking piece 12 from being bent rearward and deformed.

Thus, a part of the wiring device 20 (the device main body 2)
1 is inserted into the opening window 4 from the rear side of the frame body 1 so that the engaging projection 5 of the side part 2a is engaged with the groove part 22a of one of the assembly frames 22. When the appliance main body 21 is pressed toward the frame main body 1 from this state, a pair of locking claws 22b, 22b projecting from the other assembly frame 22, as shown in FIG. 12
, And the locking piece 12 is pushed by the locking claws 22 b, 22 b and bends away from the opening window 4. Then, when the device main body 21 is further pressed toward the frame main body 1, the locking claws 22b, 22b eventually ride over the portion protruding inside the locking piece 12 (opening window 4 side), and as shown in FIG. As shown, the locking claws 22b, 22b are locked in the locking grooves 12a, 12a of the locking piece 12, and the instrument body 21 is mounted on the mounting frame A1.

When the wiring device 20 is mounted, the contact pieces 14 projecting from the fixing piece 11 are in contact with the wiring device 20 (assembly frame 22) as shown in FIG. The contact piece 14 can prevent the wiring device 20 from rattling against the frame main body 1. In this embodiment, three pairs of abutting pieces 14 are provided on the fixing piece 11 of the locking portion 10 so as to correspond to the respective wiring instruments 20. However, as shown in FIG.
One contact piece 14 may correspond to each 0 and may protrude from the fixed piece 11.

On the other hand, when the wiring device 20 is to be removed from the mounting frame A1, the tip of a tool such as a flathead screwdriver 60 is inserted into the release hole 13 provided in the fixing piece 11 as shown in FIGS. Locking piece 1 through the insertion groove 8
2 with the flathead screwdriver 60 in contact with the opening window 4.
The locking piece 12 bends outward and the locking groove 12
The engagement between the locking claws 22b, 22b of the wiring device 20 and the locking claws 22b, 22b is released, and the wiring device 20 can be removed from the mounting frame A1. At the time of removal, the locking piece 12 abuts on the restricting portion 9 provided in the insertion groove 8, so that the amount of bending of the locking piece 12 in the direction away from the opening window 4 is restricted by the restricting portion 9. It is possible to prevent the stopper 12 from bending more than necessary and being plastically deformed.

(Embodiment 2) Embodiment 2 of the present invention will be described with reference to FIGS. However, since the basic configuration of the present embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted, and only the configuration that is a feature of the present embodiment will be described.

In the present embodiment, as shown in FIG. 9, the locking piece 12 'is formed in a substantially U-shape, and the tongue piece 6 is provided at a portion facing the insertion groove 8 at an end edge along the longitudinal direction. A substantially convex-shaped projection 6b protrudes, and between the pair of legs 12b ', 12b' of the locking piece 12 'when the fixing piece 11' is caulked and fixed to the side portion 2b as in the first embodiment. The projection 6b will be arranged.

As shown in FIGS. 10 (b) and 11 (b), dowels 12c 'protrude from the bases of the legs 12b', 12b 'of the locking piece 12'. 12 'is improved in strength. At both ends of the locking piece 12 'near the fixing piece 11', locking grooves 12a ', 12a' for locking the locking claws 22b, 22b of the wiring device 20 are provided as in the first embodiment. is there. Locking piece 1
Between the two legs 12b 'and 12b' of 2 ', an operation piece 15' bent toward the fixed piece 11 'is protruded.

The locking portion 10 'constructed as described above is
In the same manner as in the first embodiment, with respect to the frame main body 1 placed on a substantially flat place with the front side facing upward, the three locking pieces 12 ′ are respectively inserted into the three insertion grooves 8 of the side portion 2 b from above. The fixing piece 11 ′
By inserting 1a 'through the fixing projection 7 of the side 2b, it is positioned with respect to the side 2b. And the insertion hole 1
The fixing piece 11 'is fixed to the side part 2b by caulking the front end of the fixing projection 7 protruding forward from 1a'.

When the locking portion 10 'is fixed to the frame body 1, the ends of the legs 12b', 12b 'of the locking piece 12' abut against the edges of the insertion groove 8 on both sides of the projection 6b. Thus, the rearward bending of the locking piece 12 ′ is restricted to prevent the locking piece 12 ′ from being bent backward and deformed.

Thus, a part of the wiring device 20 (the device main body 2)
1 is inserted into the opening window 4 from the rear side of the frame body 1 so that the engaging projection 5 of the side part 2a is engaged with the groove part 22a of one of the assembly frames 22. When the device main body 21 is pressed toward the frame main body 1 from this state, a pair of locking claws 22b, 22b projecting from the other assembly frame 22 are engaged with the locking pieces 12 '(a pair of legs 12b',
12b '), and the locking piece 12' is brought into contact with the locking claws 22b, 2b.
2b, it bends in a direction away from the opening window 4. If you press the appliance body 21 further toward the frame body 1 from there,
Eventually, the locking claws 22b, 22b climb over the portion protruding inside the locking piece 12 '(toward the opening window 4), and as shown in FIG. 12
a ', 12a', and the device main body 21 is attached to the mounting frame A2.
Attached to.

When the wiring device 20 is mounted, the contact pieces 14 'projecting from the fixing pieces 11' as shown in FIG.
2), which is common to the first embodiment in that the contact piece 14 ′ can prevent the wiring device 20 from rattling against the frame body 1.

On the other hand, when removing the wiring device 20 from the mounting frame A2, as shown in FIG.
Release hole 13 'in which the tip of a tool such as 0 is provided in the fixing piece 11'
When the flathead screwdriver 60 is tilted toward the opening window 4 in a state where it is in contact with the operation piece 15 ′, the locking piece 1
2 'is bent outward, the locking grooves 12a', 12a 'are disengaged from the locking claws 22b, 22b of the wiring device 20, and the wiring device 20 can be removed from the mounting frame A2. By providing the operation piece 15 'on the locking portion 10' in this manner, the removal operation can be easily performed. At the time of removal, the tip 6c of the protrusion 6b formed on the tongue piece 6
Since the operation piece 15 ′ is in contact with the locking piece 12 ′, the amount of bending of the locking piece 12 ′ in the direction away from the opening window 4 is regulated, and the locking piece 12 ′
Can be prevented from being unnecessarily bent and plastically deformed.

In the present embodiment, as described above, the locking piece 1
Since 2 'is formed in a substantially U-shape, the force required to deflect the locking piece 12' is smaller than that in the first embodiment, so that the wiring device 20 can be easily attached to and detached from the attachment frame A2. There is an advantage of becoming.

[0032]

According to the first aspect of the present invention, a part of a plurality of wiring devices is provided in an opening window which has a pair of opposed side portions and a connecting portion connecting both side portions and is surrounded by the side portion and the connecting portion. A frame body for holding the wiring device in the inserted form, fixing means for fixing the frame body to a construction surface such as a wall surface, and a groove protruding from one side to the opening window side and provided on a side surface of each wiring device; A plurality of engaging projections that engage with a plurality of engaging pieces, and a plurality of engaging pieces that releasably engage with engaging claws that project from the side surface of each wiring device; And a locking portion formed integrally with a flexible member. The locking portion has an insertion hole through which a fixing protrusion protruding from a side portion is inserted. And each of the locking pieces projecting from the insertion hole in a state where each locking piece is inserted from the front into the plurality of insertion grooves provided on the side. Since the tip of the projection is caulked, for example, if the locking piece is dropped from above into each of the insertion grooves on the side of the frame body placed substantially horizontally and inserted, the side The fixing protrusion of the fixing part is inserted and positioned, and the locking part is temporarily fixed to the side of the frame body. As a result, when the tip of the fixing protrusion is crimped, the locking part is displaced or rattled. And the workability during manufacturing can be improved.

According to a second aspect of the present invention, in the first aspect of the present invention, an insertion groove is provided in the side portion and a tongue piece vertically extending backward from an edge of the side portion, and a locking piece inserted in the insertion groove. Is formed so as to be able to bend away from the opening window, and the tongue has a restricting portion for restricting the amount of bending of the locking piece. When the wiring device is removed, the restricting portion provided on the tongue is locked. There is an effect that the amount of bending can be restricted by contacting the piece to prevent the locking piece from bending more than necessary and being plastically deformed.

According to a third aspect of the present invention, in the first aspect of the present invention, the fixing piece is provided with a release hole that penetrates in the front-rear direction and communicates with the insertion groove to insert a tool for bending the locking piece. Therefore, the tip of the tool inserted into the release hole from the front of the frame body abuts on the locking piece, and if the locking piece is bent by the tool, the locked state with the locking claw of the wiring device can be released. This has the effect that the wiring device can be easily removed.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the contact piece for contacting the body of the wiring device held by the frame main body is provided at the locking portion. By contacting the housing, the rattling of the wiring device with respect to the frame body can be prevented.

According to a fifth aspect of the present invention, in the first aspect of the present invention, since the reinforcing rib is provided at the connecting portion of the frame main body, the strength of the frame main body is improved to prevent deformation such as bending and warping. The effect is that it can be prevented.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment 1, in which FIG.
(B) is a perspective view.

FIG. 2 shows a frame main body in the same as the above, (a) is a front view,
(B) is a side view, and (c) is a side sectional view seen from another direction.

3A and 3B show a locking portion of the above, and FIG.
(B) is a side view, (c) is a side view seen from another direction.

4 (a) is a front view, FIG. 4 (b) is a side view, and FIG. 4 (c) is a side view as viewed from another direction.

5A and 5B show the same as above, wherein FIG. 5A is a rear view and FIG. 5B is a side view.

FIGS. 6 (a) and (b) are explanatory diagrams for explaining how to attach and detach a wiring device to the present embodiment, respectively.

FIG. 7 is a side cross-sectional view showing a state where a wiring device is attached thereto.

FIG. 8 is a partially omitted perspective view showing another configuration of the locking portion in the above.

FIG. 9 shows the second embodiment, in which (a) is an exploded perspective view,
(B) is a perspective view.

10A and 10B show the same as above, wherein FIG. 10A is a front view, FIG. 10B is a side view, and FIG. 10C is a side view as viewed from another direction.

11A and 11B show the same as above, wherein FIG. 11A is a rear view and FIG. 11B is a side view.

FIG. 12 is a side cross-sectional view showing a state where a wiring device is attached thereto.

FIG. 13 is a perspective view showing a conventional example.

FIG. 14 is a partially omitted perspective view showing another conventional example.

FIG. 15 is a perspective view of a locking piece in the same.

FIG. 16 is a sectional view of a main part of the above.

FIG. 17 is a schematic sectional view showing an attached state of the above.

[Explanation of symbols]

 A1 Mounting frame for wiring device 1 Frame body 2a, 2b Side 3 Connecting portion 4 Opening window 5 Engagement protrusion 6 Tongue piece 7 Fixing protrusion 8 Insertion groove 10 Locking portion 11 Fixed piece 11a Insertion hole 12 Locking piece

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masuo Kitamura 1048 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Works F-term (reference) 5G357 CA06 CB05 CC01 CD02 CF01 CF03

Claims (5)

[Claims] 1. A wiring having a pair of opposing side portions and a connecting portion for connecting both side portions, wherein a part of a plurality of wiring devices is inserted into an open window surrounded by the side portion and the connecting portion. A frame main body for holding the equipment, fixing means for fixing the frame main body to a construction surface such as a wall surface, and a plurality of engaging members which protrude from one side to the opening window side and engage with grooves provided on the side surfaces of the wiring equipment; A mating projection, a plurality of locking pieces that are removably locked to locking claws protruding from the side of each wiring device, and a fixing piece that connects the plurality of locking pieces and is fixed to the other side is possible. A locking portion integrally formed by a member having flexibility, the locking portion is provided with an insertion hole for inserting a fixing protrusion projecting from a side portion of the fixing piece, and the side portion has The front ends of the fixing projections protruding from the insertion holes when the respective locking pieces are inserted from the front into the plurality of insertion grooves provided. A mounting frame for wiring equipment, which is formed by being tightened. 2. An insertion groove is provided in a side portion and a tongue piece which is provided to extend rearward from an edge of the side portion, and a locking piece inserted in the insertion groove is formed to be flexible in a direction away from the opening window. 2. The mounting frame for a wiring device according to claim 1, wherein a restricting portion for restricting the amount of bending of the locking piece is provided on the tongue piece. 3. The wiring device according to claim 1, wherein a release hole is provided in the fixing piece so as to penetrate in the front-rear direction and communicate with the insertion groove to insert a tool for bending the locking piece. Mounting frame. 4. The mounting frame for a wiring device according to claim 1, wherein a contact piece for abutting on a body of the wiring device held by the frame main body is provided on the locking portion. 5. The mounting frame for a wiring device according to claim 1, wherein a reinforcing rib is provided at a connecting portion of the frame main body.