JP2000076952A - Wiring apparatus mounting frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify mounting and prevent shaking or cracking by providing a locking part and a mounting piece on one frame piece of a metallic frame, having apparatus fitting parts in the center and both sides provided by setting the length of the opening edge of an apparatus mounting opening part, which provides a mounting piece on the other frame piece, elastically deforming a protruding pull-out preventing piece with a locking claw of an apparatus to be fitted so as to pass it, and engagingly locking it by a spring body. SOLUTION: A maximum of three wiring apparatuses S for which the lengths of the rectangular short edge side and long edge side of the apparatus mounting opening part 8 of a metallic frame 7 are slightly larger than the long edge side of the front part and about 3 times the short edge side thereof, respectively, is fitted from the rear. A spring plate 10 is mounted on an elliptical hole 9f of one of a pair of mounting pieces 9 cut up on the long edge-side outer edge part of the frame 7 by a locking piece 10b, and one locking claw Sa of the wiring apparatus S is engagingly locked to the locking end surface 9a of the inverted T-shaped slit piece 9n of the other mounting piece 9. The other locking claw Sa elastically deforms the pull-out preventing piece 10d of the spring plate 10 and climbs over it, and is engagingly locked to the upper end surface. Thus, a single-touch of button operation can be performed without the use screw driver or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal mounting frame for a wiring device 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 a construction surface such as a wall surface.

[0003]

As shown in FIG. 3, a conventional metal mounting frame for a wiring device is formed by inserting a screwdriver into a notch 7c of a frame piece of a frame 7 of the mounting frame and deforming a projection 7b side. Then, by caulking and fixing to the wiring device S, the wiring device S
The installation was troublesome for fixing.

The mounting frame made of synthetic resin is provided with a locking portion for locking the locking claw of the wiring device by utilizing its elasticity, so that the wiring device can be easily mounted. There is a problem that is easy to occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to mount a maximum of three wiring devices easily and without rattling, and to cause no cracking or the like. An object of the present invention is to provide a mounting frame for a wiring device.

[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 a tool mounting opening at the center for fitting a front part of a wiring tool from behind a frame body. The length of the opposing opening edges on both sides of the appliance mounting opening is slightly larger than the length of the front surface of the wiring device in the longitudinal direction, and the opposing edges of both ends are orthogonal to the opposing opening edges on both sides. The length of the opening edge is set to be approximately the same as three times the unit size of the front side of the wiring device in the short direction. 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 the above-mentioned portion, and the other frame piece is integrated rearward. A U-shaped fold with an extended mounting piece provided and the tip of this mounting piece provided at the base end When the front part of the wiring device is fitted into the opening from the rear side of the frame, it is held by the bent part and attached to the mounting piece. Three sets of convex removal preventing pieces which are elastically deformed and allow the locking claws to pass to the end face side are integrally formed so as to protrude from the base end toward the instrument mounting opening side corresponding to the respective portions, and pass therethrough. A spring body for locking the pair of locking claws with the end surfaces of both shoulders of the removal preventing piece.

[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 appliance mounting opening 8 is rectangular, and its short dimension is fitted into the appliance mounting opening 8 from the rear (rear side) of the frame 7 with the front part projecting 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 stopper end surface 9 a that locks the pair.

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 plate 13 made of synthetic resin is attached to the back side of the frame 7 with screws, and a decorative plate 11 made of synthetic resin is provided on a frame piece of the plate 13 with an elastically displaceable locking claw. (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. 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 at the upper end surface of the extraction preventing piece 10d that elastically returns, and the extraction is prevented (FIG. 1).
Is shown by a two-dot chain line). In this manner, the work of deforming the frame 7 side using a tool such as a screwdriver is omitted, and while the wiring device S is securely attached,
The workability is improved. 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 having an integral multiple of the size of the wiring devices 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 for fitting the front part of the wiring device from the rear of the frame in the center, and opposed opening edges on both sides of the tool mounting opening. The length of the front end of the wiring device is slightly larger than the length of the front surface of the wiring device. As a dimension substantially equal to three times the unit size in the direction, three places at the center of the frame body and on both sides thereof are provided so that the front part of the wiring device can be fitted therein, and one of the frame pieces on both sides of the frame body is provided. One of the pieces is provided with a locking portion for locking one side of the wiring device corresponding to each of the above-mentioned portions, and the other frame piece is provided with a mounting piece which is integrally extended rearward. Is held by the U-shaped bent part provided in the When the front part is fitted into the opening from the rear side of the frame, the protrusion is elastically deformed by the locking claw protruding laterally from the other side of the wiring device so that the locking claw can pass through to the end face side. Three sets of pull-out preventing pieces are formed integrally with each other so as to protrude from the base end toward the instrument mounting opening side in correspondence with the respective portions, and a pair of locking claws that have passed through the end faces of both shoulders of the pull-out preventing pieces. Since the spring body is provided with a locking portion, the one side portion of the wiring device is locked to the locking portion provided on one of the frame pieces of the frame body, and the front portion is mounted from the rear of the frame body with the device mounting opening. Only by the operation of fitting into the portion, the locking claw on the other side of the wiring device can be locked to the pull-out preventing piece of the spring body attached to the mounting piece of the other frame piece of the frame body, so-called mounting of the wiring device is so-called. It can be done by one-touch operation, so there is no need to deform the frame piece like a conventional metal mounting frame. Since the body is made of metal, there is no cracking such as the mounting frame made of synthetic resin, and there is an effect that up to three wiring devices can be installed at the same time. Is locked so as to sandwich the central projection of the wiring device, so that there is an effect that the wiring device can be loosely attached. .

[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 10a, 10c Leg piece 10b Retaining / retaining piece 10d Removable preventing piece 10 Spring plate S Wiring device Sa Locking claw

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akitaka Hamaguchi 2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Denki Kogyo Co., Ltd. (72) Inventor Hideaki Iwai 2856 Shiratsuka-cho, Tsu-shi Mie, Asahi Denki Kogyo Inside

Claims (1)

[Claims] 1. A metal frame having a tool mounting opening for fitting a front portion of a wiring device from the rear of a frame in a center portion, wherein a length of a facing opening edge on both sides of the device mounting opening is set. A dimension slightly larger than the longitudinal dimension of the front portion 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 the unit size of the wiring device in the short direction of the front portion. The same size as three times the size of the wiring device, the front part of the wiring device can be fitted in three places at the center of the frame body and three places on both sides thereof. A locking portion for locking one side of the wiring device is provided correspondingly to each part, and a mounting piece which is integrally extended rearward is provided on the other frame piece, and a distal end of the mounting piece is provided at a base end. It is attached to the mounting piece by holding it at the bent part, and the front part of the wiring device is When being fitted into the opening from the rear side of the frame, a convex pull-out that elastically deforms the locking claw that protrudes laterally from the other side of the wiring device and allows the locking claw to pass to the end face side Three sets of blocking pieces are formed integrally with each other so as to protrude from the base end toward the instrument mounting opening side from the base end, and a pair of locking claws that have passed are locked by the end faces of both shoulders of the removal blocking piece. A mounting frame for wiring equipment, comprising: