JP3232287B2 - Mounting frame for wiring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal wiring device mounting frame for mounting a wiring device such as a switch or an outlet.

[0002]

2. Description of the Related Art Conventionally, metal wiring device mounting frames and synthetic resin mounting frames have been provided for embedding wiring devices such as switches and outlets in mounting surfaces.

[0003]

As shown in FIG. 3, the conventional metal mounting frame for a wiring device is formed by notching a frame piece of a frame 7 of the mounting frame as shown in FIG. The wiring device S is fixed by inserting a screwdriver into 7c, deforming the protrusion 7b side, and caulking and fixing the wiring device S, so that the mounting is troublesome.

[0004] On the other hand, the mounting frame made of synthetic resin uses the elasticity of the mounting frame to lock the wiring device, so that the mounting can be easily performed, but there is a problem that the material is cracked.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a mounting frame for a wiring device in which a wiring device can be easily mounted without cracking. It is in.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a metal frame provided with an appliance mounting opening at the center for fitting a front portion of a wiring appliance from behind. The dimension between the opposing opening edges on both sides of the appliance mounting opening is made slightly larger than the longitudinal dimension of the front surface of the wiring device, and the opposing opening edges on both ends orthogonal to the opposing opening edges on both sides. Assuming that the length is approximately an integral multiple of the unit dimension of the front side of the wiring device in the lateral direction, the number of sites that can be fitted with the front surface of the wiring device is equal to the integer multiple in the appliance mounting opening. Provided, one of the frame pieces on both sides of the frame body is provided with a locking portion that locks one side of the wiring device corresponding to the above-described portions, and the other frame piece has
When fitting the front part of the wiring device into the opening from the rear side of the frame, the locking claw protruding sideward from the other side of the wiring device elastically deforms and the locking claw can pass to the end face side A separate member from the frame, wherein the locking claw that has passed is locked between the end face of the extraction prevention piece and the back surface of the frame.
And a locking portion formed of a spring body corresponding to the above-mentioned portion.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment.

FIG. 2 is an exploded perspective view showing a frame 7 of a metal mounting frame mounted in a mounting hole provided in a mounting surface.
Is formed with an instrument mounting opening 8. The fixture mounting opening 8 has a rectangular shape, and its short dimension is fitted into the fixture mounting opening 8 from the rear (back side) of the frame 7 with the front part protruding toward the center of the front surface of the wiring device S. It is formed to the same size as the longitudinal dimension of the front part so that it can be
Further, the dimension in the longitudinal direction is formed to be substantially an integral multiple of the dimension in the lateral direction of one wiring device S.

[0009] Specifically, it is tripled. That is, a maximum of three wiring devices S can be mounted in the device mounting opening 8.

[0010] A pair of mounting pieces 9, 9 are formed by cutting and raising at the outer edge of the long side (frame pieces on both sides).
One of the mounting pieces 9 is divided into a plurality of pieces, and each of the divided pieces 9n is formed in an inverted T shape, and a pair of upper end faces on both sides of the side are protruded outward from both sides of the wiring device S. Stop claws S
As shown in FIG. 1, one of the pair a and Sa is a retaining locking end surface 9 a for locking as shown in FIG. 1.

The other mounting piece 9 has an elongated hole 9f for mounting a leaf spring 10 to be described later.

A wiring device S is mounted in the device mounting opening 8 between the mounting pieces 9, 9 via a stainless steel spring plate 10 as described later.

A synthetic resin plate frame 13 is attached to the back side of the frame body 7 with screws. (Not shown).

On the wiring device S side, locking claws Sa are projected outward from both ends.

The leaf spring 10 is made of stainless steel bent and formed in a substantially inverted U-shape. The leaf spring 10 comes into contact with one leg piece 10a against the end face 9g of the rim of the long hole 9f of the other mounting piece 9 so as to make the spring. A retaining piece 10b for retaining the plate 10 is formed.

On the other leg piece 10c, there is formed a convex removal preventing piece 10d which allows the passage of the locking claw Sa on the wiring device S side by elastic deformation and prevents the removal of this locking claw Sa. I have.

When the wiring device S is mounted by fitting the front surface of the wiring device S into the device mounting opening 8 from behind the frame 7, first, the substantially inverted U-shaped spring plate 10 is attached to the other mounting piece. 9 is attached to the long hole 9f at the retaining piece 10b. Then, after one locking claw Sa on the wiring device S side is locked on the retaining locking end surface 9a of the divided piece 9n of the one mounting piece 9, the front surface is fitted into the device mounting opening 8. The pull-out preventing piece 10d on the spring plate 10 side is elastically deformed by the other locking claw Sa on the wiring device S side to exceed it. As a result , the locking claw Sa is locked between the upper end surface of the pull-out preventing piece 10d that elastically returns and the back surface of the frame 7, and pull-out is prevented (indicated by a two-dot chain line in FIG. 1). In this manner, the work of deforming the frame 7 side using a tool such as a screwdriver is omitted, and the workability of the wiring device S is improved while the mounting of the wiring device S is securely performed. The wiring device S has an outlet and a switch.

As described above, in the present embodiment, the work of deforming the metal frame 7 side using a tool such as a screwdriver is omitted, the wiring device S can be securely attached, and the workability is improved. Increase it.

The number of the wiring devices S can be easily increased or decreased in the rectangular device mounting opening 8 which is an integral multiple of the wiring device S. That is, three wiring devices S can be attached to the metal frame 7 in the embodiment. In such a case, a long spring plate 10 is attached to the long hole 9f to share the spring plate 10 and reduce the number of components. This is to stabilize the mounting of S.

[0020]

According to the present invention, there is provided a metal frame provided with a tool mounting opening at the center for fitting the front part of the wiring tool from the rear, between the opposing opening edges on both sides of the tool mounting opening. The dimension is set to be slightly larger than the longitudinal dimension of the front part of the wiring device, and the length of the opposing opening edges at both ends orthogonal to the opposing opening edges on both sides is a unit in the short direction of the front part of the wiring device. As the size of substantially an integral multiple of the dimension, a portion capable of fitting the front portion of the wiring instrument is provided in the instrument mounting opening in a number corresponding to the integral multiple, and one of the frame pieces on both sides of the frame body. Is provided with a locking portion for locking one side of the wiring device corresponding to each of the above-described portions, and the other frame piece is used to fit the front portion of the wiring device into the opening from the rear side of the frame body. In addition, the hook is elastically deformed by a locking claw protruding laterally from the other side Nail comprising a withdrawal preventing piece was passable to the end face side, passes through the locking claw to be locked in the end face of該抜out blocking piece, the site engaging portion comprising a spring member is a separate member from said frame member An operation of fitting one side of the wiring device to the locking portion provided on one of the frame pieces of the frame, and fitting the front portion into the device mounting opening from behind the frame. Only with this, the locking claw on the other side of the wiring device can be locked to the pull-out preventing piece of the spring body provided on the other frame piece of the frame, and the wiring device can be attached by a so-called one-touch operation. Unlike a metal mounting frame, there is no need to perform operations such as deformation of the frame pieces, and since the frame is made of metal, there is an effect that cracks and the like, unlike a synthetic resin mounting frame, do not occur.
In particular, by adopting a structure in which the spring body is provided, the spring body and the frame body can be formed by separate members. As a result, a metal material having appropriate rigidity is used for the frame body, and an appropriate material is used for the spring body. A spring material with spring properties can be used, which prevents deformation of the frame, and also allows for one-touch operation using the elasticity of the spring when mounting,
In addition, since the passing locking claw is locked between the end surface of the removal preventing piece and the back surface of the frame, the rattling of the wiring device is prevented, and the wiring device is temporarily locked after the wiring device is once attached. It is possible to prevent the nail from being released from the locked state.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an attaching operation of one embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a plan view of a conventional example.

[Explanation of symbols]

 Reference Signs List 7 Frame 8 Device mounting opening 9 Mounting piece 9a Retaining / retaining end face 10 Spring plate 10a Leg piece 10b Retaining / retaining piece 10c Extraction preventing piece S Wiring device Sa Locking claw

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hideaki Iwai 2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Denki Kogyo Co., Ltd. (56) References JP-A-59-222015 (JP, A) JP-A-4-271221 (JP, A) JP-A-2-228208 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01H 9/02 H01R 13/46 303 H01R 13/46 304 H02G 3/02 301

Claims (1)

(57) [Claims] 1. A metal frame provided with an instrument mounting opening in the center of which the front part of a wiring instrument is fitted from behind, wherein the wiring between the opposed opening edges on both sides of the instrument mounting opening is determined by the wiring. The length of the opposed opening edges at both ends orthogonal to the opposed opening edges on both sides is set to a size slightly larger than the longitudinal dimension of the front portion of the device, and the length of the unit dimension in the short direction of the front portion of the wiring device is substantially an integer. As the double size, a portion capable of fitting the front portion of the wiring device is provided in the device mounting opening in a number corresponding to the integer multiple, and the portion is provided in one of the frame pieces on both sides of the frame body. A locking portion for locking one side of the wiring device is provided correspondingly to each other, and the other frame piece is provided with a wiring device when the front portion of the wiring device is fitted into the opening from the rear side of the frame body. Elastically deformed by the locking claw protruding laterally from the other side of the Comprising a withdrawal preventing piece was passable to the side, locking between the back surface of the end face and the frame of the該抜out blocking piece claws passing through, before
A mounting frame for a wiring device, wherein a locking portion made of a spring body as a separate member from the recording frame body is provided in correspondence with the above-mentioned portion.