JP2000308230A - Wiring appliance plate frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring appliance plate frame, which facilitates attachment of a wiring appliance on both the ends of the opening of a plate frame main part. SOLUTION: A bending piece 4 is formed on one 3 of the side pieces on both the sides of a plate frame main part 2 made of synthetic resin, and a fixing part is formed on the other 3'. A wiring appliance such as a plug-socket, etc., is detachably attached to the plate frame main part 2, while its front surface is exposed from an opening 1. Engagement holes 25, with which engagement pieces made to protrude from both the left and right sides of both the ends of the rear surface of a face plate attached to the front side of the plate frame main part 2 are engaged, are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device plate frame.

[0002]

2. Description of the Related Art Conventionally, when an embedded wiring device is installed on a construction surface such as a wall surface, a mounting frame for mounting the wiring device, a plate frame for covering an embedding hole or an opening of a switch box, and a plate frame for mounting the wiring device. At least three members of the decorative plate were used.

[0003]

However, in the above-mentioned conventional method, the number of members used is increased, and the construction is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to make it easier to mount a wiring device at both ends of an opening of a plate frame body and to provide a decorative plate. Another object of the present invention is to provide a wiring device plate frame that can be easily mounted.

[0005]

In order to achieve the above-mentioned object, an object of the present invention is to expose front portions of a plurality of wiring devices corresponding to one standardized device module. A synthetic resin plate frame main body which has an opening capable of being set up and covers an opening of a construction surface such as a wall surface, and both ends of a rear surface of a decorative plate mounted on a front side of the plate frame main body. In addition to providing engagement holes on each of the left and right sides of the portion with which engagement pieces projected therefrom are provided, mounting holes for installing the plate frame body on the construction surface are provided at both ends, and on both sides of the opening. Is provided with locking means for locking the locking pieces projecting from both sides of the wiring device on the rear surface side of the plate frame main body, one of the locking means is formed by a flexible piece that can be bent, and from the front surface of the plate frame main body. Concave facing the locking part of the other locking means When the locking pieces on both sides of the wiring device are locked by both locking means, at least one of the locking means is subjected to a force due to the pressing force of the corresponding locking protrusion of the wiring device, and An inclined surface for bending the locking means in the direction, and opposing small protrusions are formed on the inner surface on both sides of the opening at the boundary of the opening portion for exposing the front surface of the wiring device corresponding to one. It is characterized by comprising.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1, 2, 7, and 8, the plate frame main body 2 made of a synthetic resin is formed flat, and has a size capable of mounting three wiring devices A having a size equivalent to one standardized wiring device module. The opening 1 is provided at the center. The plate frame main body 2 has a bending piece 4 as a locking means on one of the side pieces 3 on both sides, and has a fixing portion 10 as a locking means on the other 3 '.

[0007] A wiring device A such as an outlet is detachably mounted on the plate frame main body 2 with its front surface exposed in the opening 1. Wiring device A has body 11a and cover 11b
Are joined by a pair of metal assembly frames 12, and the assembly frame 1
A pair of locking pieces 13 protrude from the side end surfaces of the two. The wiring device A is the size of one standardized wiring device module, and the opening 1 of the plate frame main body 2 has a size in which three wiring devices A can be mounted, and the front portion of one wiring device A Opposite small projections 1a are provided on the inner surfaces on both sides of the boundary portion adjacent to the portion where is exposed.

The plate frame body 2 is installed in front of an opening surface of an embedding box embedded in a wall or the like.
At the top and bottom of the plate frame body 2, a long and circular mounting hole 1 is provided.
4 and 15 are respectively drilled. The side piece 3 of the plate frame main body 2 has an inner portion 3a and an outer portion 3b integrally formed in parallel with a gap 6 therebetween, and the two portions 3a, 3b
The both ends are integrally connected to the both end pieces 5 of the plate frame main body 2 at the back end of the gap 6 therebetween, thereby forming the flexible bending piece 4 having flexibility. As shown in FIG. 6, the cross section of the inner portion 3a of the side piece 3 is formed in an inverted L shape in cross section, is thinner than the flexible piece 4, and the resin material first flows to the flexible piece 4 side during molding.
Welding is prevented from occurring on the bending piece 4. Further, both ends of the gap 6 are longer than in the related art so as to penetrate into both end pieces 5 of the plate frame main body 2, so that the span of the bending piece 4 is increased and the bending amount is increased.

[0009] Two portions 3 of the side piece 3 at two places of the bending piece 4 corresponding to both ends of the wiring device insertion position at the center of the opening 1.
The inner surfaces of a and 3b are connected by bridging pieces 7 and 8. A long slit 9 is formed in the outer portion 3b in both end directions centering on the joining point of the bridging piece 8, and the inner portion of the slit 9 is made thinner. The piece 4 is easily bent in the lateral direction.

A pair of recesses 16 are formed in the inner surface of the bending piece 4.
As shown in FIG. 1, as shown in FIG. 1, the rear surface side of the recess 16 is a stepped portion 17 to which the locking piece 13 of the wiring device A is locked. The rear end of the bending piece 4 is formed so as not to protrude from the rear surface of the plate frame main body 2. Plate frame body 2
A fixing portion 10 is formed on the side piece 3 '. That is,
As shown in FIG. 2, a fixing rib 19 is integrally formed on the rear surface of the side piece 3 '. The side piece 3 ′ is provided with a recess 20 penetrating the fixing rib 19 side, and three sets of a pair of steps 21 are formed on the rear side of the recess 20. The fixing rib 19 is formed so as to protrude from the rear surface of the plate frame main body 2. Further, as shown in FIG. 1B, an inclined surface 22 is formed on the side surface of the fixing rib 19 and on the back corresponding to the step portion 21, and the connection surface of the wiring device A is formed on the inclined surface 22. When the stop piece 13 abuts and follows, the bending piece 4
Is bent outward.

The front surface of the plate frame body 2 is recessed one step from the periphery, and 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 so as to project therefrom.
It is perforated. An opening window 26 for exposing the front surface of the wiring device A is provided at the center of the decorative plate 23. In this embodiment, a decorative plate 23 for one wiring device corresponding to each opening 1 is used. Therefore,
Depending on the number of wiring devices used, a decorative plate 23 provided with opening windows 26 corresponding to the number of wiring devices may be used.

Between the pair of recesses 20 of the side piece 3 'of the plate frame body 2, a driver 2 for releasing the wiring device A is provided.
An insertion hole 29 for inserting the hole 8 is provided penetrating in the front-rear direction. As shown in FIG. 9, a chamfered portion 30 is provided on the inner side surface of the insertion hole 29 to increase the degree of freedom of the driver 28. As shown in FIGS. 1 and 4, projections 18 are formed on both sides of the step portion 21 of the fixing rib 19, and the locking piece 13 of the wiring device A is inserted into the step portion 21 by the projection 18. After fitting of the wiring device A when locked, rattling and center displacement are prevented.
Further, as shown in FIG. 6, a projection 43 is integrally provided on a side surface where the bending piece 4 and the outer portion 3b face each other, and is provided in the slit 27 between the bending piece 4 and the inner portion 3a. Even if the driver 28 accidentally inserts the tip of the driver 28 when removing the wiring device A, the driver 28 can prevent the driver 28 from being erroneously inserted because the tip of the driver 28 hits the projection 43.

Next, an operation of attaching and detaching the wiring device A to and from the plate frame main body 2 will be described. First, as shown in FIG.
The one locking piece 13 of the wiring device A is bent so that the step 17 on the side of the bending piece 4 is formed.
And the other locking piece 13 is moved to the front side along the inclined surface 22 of the fixing rib 19. The wiring device A moves to the bending piece 4 side by abutting along the inclined surface 22. For this reason, one locking piece 13 urges the bending piece 4 outward to bend. When the other locking piece 13 gets over the inclined surface 22 and is inserted and locked in the stepped portion 21, the wiring device A returns to the right in FIG. While being locked to the steps 17, 21,
The wiring device A is mounted on the plate frame main body 2 in contact with the rear surface of the plate frame main body 2. In other words, one of the locking pieces 13 of the wiring device A is first inserted into the movable bending piece 4 side, and the movable bending piece 4 is pushed outward by the fixed inclined surface 22 and fitted therein. That is, the bending piece 4 on the side of the step portion 17 into which the locking piece 13 is inserted and locked first is bent in the lateral direction, and the side of the fixing rib 19 on the side of the step portion 21 inserted later is not bent.

Next, when the wiring device A is detached from the plate frame main body 2, the following operation is performed. That is, the driver 28 is inserted into the insertion hole 29 from the front, and the tip of the driver 28 is connected to the assembly frame 12 between the locking pieces 13 as shown in FIG.
, And the driver 28 is tilted outward as shown by a dashed line in the figure. Then, the wiring device A is urged toward the bending piece 4 by the driver 28, and the locking piece 13 is removed from the step 22, so that the wiring device A is moved to the plate frame body 2.
It can be easily removed from. At this time, the chamfer 3
Since the space is formed by 0, the degree of freedom of the driver 28 can be increased, and the driver 28 can be easily removed. Note that, without using the driver 28, the wiring device A can be manually shifted to the bending piece 4 side and released.

[0015]

According to the first aspect of the present invention, there is provided an opening capable of exposing the front parts of a plurality of wiring devices corresponding to one standardized device module, and a construction surface such as a wall surface. An engaging piece, which is formed of a synthetic resin plate frame main body installed so as to cover the opening of the plate frame main body and protrudes from the left and right sides of both ends of the rear surface of the decorative plate attached to the front side of the plate frame main body, is provided. Since the mating engagement holes are provided, the decorative plate can be easily attached to the front surface of the plate frame main body, and mounting holes for installing the plate frame main body on the work surface are provided at both ends. Therefore, the plate frame body can be directly mounted on the construction surface, and furthermore, locking means for locking the locking pieces protruding from both sides of the wiring device on both sides of the opening on the rear side of the plate frame body. With one of the locking The step is formed by a flexible piece that can be bent, a recess is provided from the front surface of the plate frame body to the locking portion of the other locking means, and the locking pieces on both sides of the wiring device are locked by both locking means. At this time, at least one of the locking means is formed with an inclined surface which bends outwardly by receiving a force due to the pressing force of the corresponding locking projection of the wiring device. The wiring device can be directly attached without using a separate, and it is easy to lock the wiring device with the locking means by using the inclined surface and the bending piece. Since the number of used members is small and the installation of the wiring device is simple, construction work can be easily performed, and the front surface of the wiring device corresponding to one is exposed on the inner surfaces on both sides of the opening. Opposite small protrusions at the boundary of the opening Since is formed with a small projection on the front face of the wiring device is an effect that it is possible to restrict the movement of the both sides direction opposite.

[Brief description of the drawings]

FIG. 1A is a front view of a plate frame main body according to an embodiment of the present invention. (B) is a bottom view of the plate frame main body according to one embodiment of the present invention, which can be broken.

FIG. 2A is a rear view of a plate frame main body according to one embodiment of the present invention. (B) is a side sectional view of the plate frame main body of one embodiment of the present invention.

FIG. 3 is an enlarged sectional view of a fixing portion of the plate frame main body according to one embodiment of the present invention.

FIG. 4 is a sectional view of a main part of a plate frame main body according to one embodiment of the present invention.

FIG. 5 is an enlarged front view of a main part of the plate frame main body according to one embodiment of the present invention.

FIG. 6 is an enlarged perspective view of a main part of the plate frame main body according to one embodiment of the present invention, in which the main part is broken.

FIG. 7 is an exploded perspective view of one embodiment of the present invention.

FIG. 8 is an explanatory view for attaching a wiring device according to an embodiment of the present invention.

FIG. 9 is an explanatory view of removing the wiring device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening 1a Small protrusion 2 Plate frame main body 3 Side piece 3 'Side piece 4 Flexure piece 5 Both ends piece 14 Mounting hole 25 Engagement hole

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H05K 7/12 H05K 7/12 C (72) Inventor Masaaki Nakamura 2856 Shiratsukacho, Tsu-shi, Mie Asahi Denki Kogyo (72) Inventor Takao Ota 2856, Shiratsuka-cho, Tsu-shi, Mie Asahi Denki Kogyo Co., Ltd. (72) Inventor Hideki Yokoyama 1048, Oazadomazuma, Kadoma-shi, Osaka Matsushita Electric Works, Ltd.

Claims (1)

[Claims] 1. A wiring device having an opening capable of exposing front portions of a plurality of wiring devices corresponding to one standardized device module, and installed so as to cover an opening of a construction surface such as a wall surface. An engaging hole is formed on the left and right sides of both ends of the rear surface of the decorative plate attached to the front side of the plate frame body. At the same time, mounting holes for installing the plate frame main body on the construction surface are provided at both ends, and locking pieces projecting from both sides of the wiring device are provided on both sides of the opening at the rear side of the plate frame main body. A locking means for stopping is provided, one of the locking means is formed of a bendable flexible piece, a recess is provided from the front surface of the plate frame main body to a locking portion of the other locking means, and both sides of the wiring device are provided. When locking the locking piece to both locking means, Also, the one locking means is formed with an inclined surface that bends the locking means outward by receiving the force of the pressing by the corresponding locking projection of the wiring device, and the inner surfaces on both sides of the opening are formed. A plate frame for a wiring device, characterized in that opposing small projections are formed at a boundary of an opening portion for exposing a front surface of the wiring device corresponding to one.