JPH0591618A - Plate frame for wiring accessories - Google Patents

Abstract

PURPOSE:To provide a plate frame for wiring accessories wherein wiring accessories can easily be installed on both ends of an opening of a main body of a plate frame. CONSTITUTION:A synthetic resin-made plate frame main body 2 has a flexible piece 4 on one of the side pieces 3 located on both sides of the body and a fixed section on the other side piece 3'. In an opening 1, wiring accessories such as a plug socket are installed removably on the plate frame main body 2 with its front face exposed. The side piece 3 is constituted of an inside part 3a and an outside part 3b which are formed in a body in parallel with each other through a space 6. At the back end of the space 6 between the two parts 3a and 3b, the flexible piece 4 whose both ends are connected in one body with both end pieces 5 of the plate frame main body 2 and which has a flexibility is installed. The space 6 is made long so that it may enter both end pieces 5 of the plate frame main body 2. Therefore, a span of the flexible piece 4 is large and thereby the large deflection can be obtained.

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 FIG. 10 shows a part of a conventional wiring device plate frame of this type, and the wiring device plate frame has an opening 1 for exposing the wiring device A at the center as shown in the drawing. The plate frame body 2 is made of a synthetic resin and has one of the side pieces 3 located on both sides of the opening 1 and one of the locking pieces protruding from both sides of the wiring device A is first. The flexible piece 4 that can be inserted and locked
The other side piece of the plate frame body 2 is provided with a fixing portion into which the other locking piece of the wiring device A is inserted and locked later. The bending piece 4 can be bent by integrally connecting both ends to the inside of both ends of the gap 6 in a gap 6 formed on one of the side pieces 3 and having both ends reaching both ends 5 of the plate frame body 2. There is.

[0003]

However, in the above-mentioned conventional example, when the wiring device A is mounted at both ends of the opening 1, since the span of the bending piece 4 is short, the bending is small and the wiring device A
There was a problem that the insertability when inserting and locking the locking piece was poor. Further, since the bending piece 4 is thinner than the thickness of the inner portion 3a between the gap 6 of the side piece 3 and the opening portion 1, when the plate frame main body is molded, the molding material flows first to the inner portion 3a. Therefore, there is a problem that a weld is generated on the side of the bending piece 4 and the bending piece 4 is cracked from the weld portion when the wiring device A is mounted.

Further, a bridging piece is provided between the inner side portion 3a of the side piece 3 between the gap 6 and the opening 1 and the bending piece 4 corresponding to the boundary positions of both ends of the central equipment mounting position of the opening 1. 7, a flexible bridge 4 opposite to the connecting point of the bridging piece 7 and another bridging portion between the outer portion 3b of the side piece 3 parallel to the inner portion 3a via the gap 6. Pieces 8 are integrally joined, and slits 9 are formed in the outer portion 3b in both end directions centering on the joining point of the other bridging piece 8 to the outer portion 3b, but since the slit 9 has a short length, When the wiring device A is attached to the central portion of the opening 1, the bending piece 4 is difficult to bend and there is a problem that the insertability of the locking piece is poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wiring device which facilitates mounting of the wiring device at both ends of the opening of the plate frame body. To provide a plate frame for. Also,
The object of the invention of claim 2 is the above-mentioned claim 1.
In addition to the object of the invention described above, it is an object of the present invention to provide a wiring device plate frame in which a weld is prevented from being generated in a bending piece during molding of a plate frame main body, and the bending piece is less likely to break when a wiring device is attached.

Further, in addition to the object of the invention as set forth in claim 1, the object of the invention as set forth in claim 3 is to provide a wiring device which facilitates mounting of the wiring device at the central portion of the opening of the plate frame main body. To provide a plate frame for.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 has a decorative plate mounted on the front surface and an opening for exposing the wiring device at the center,
A plate frame body made of synthetic resin that covers the opening surface side of the embedding hole is formed, and one of the side pieces of the plate frame body located on both sides of the opening has one of the locking pieces protruding from both sides of the wiring device. A plate frame for wiring equipment in which a flexible bending piece that is inserted and locked first is provided, and a fixing portion into which the other locking piece of the wiring appliance is inserted and locked later is provided on the other side piece of the plate frame body. In, in a gap formed in one of the side pieces of the plate frame main body and having both ends positioned in the both end pieces of the plate frame main body, there is provided a flexible piece capable of bending by integrally connecting both ends to the inner ends of the gap. It is provided.

According to a second aspect of the present invention, the cross-section of the inner side portion of the side piece between the gap and the opening is formed in an inverted L shape so that it is thinner than the cross-section of the bending piece. According to a third aspect of the present invention, a bridging piece is integrally formed between the bending piece and an inner side portion of the side piece between the gap and the opening, which corresponds to both end boundary positions of the central instrument mounting position of the opening. Combine with
The bending piece on the side opposite to the connecting point of the bridging piece and the outer part of the side piece parallel to the inner part via the gap are integrally joined by another bridging piece, and Long slits are formed in the outer portion, the long slits extending in both ends around the connecting point to the outer portion.

[0009]

According to the configuration of the invention described in claim 1,
A bending piece formed on one of the side pieces of the plate frame body and having both ends positioned inside the both end pieces of the plate frame body was provided with a bending piece capable of being bent by integrally connecting both ends to the inside of the gap. So, when installing wiring equipment at both ends of the opening,
Since the span of the bending piece can be made long, the bending amount of the bending piece can be increased, which facilitates insertion of the locking piece of the wiring device.

According to the configuration of the invention described in claim 2,
Since the cross-section of the inner side portion of the side piece between the gap and the opening is formed in an inverted L shape to have a thinner wall than the cross-section of the bending piece, the resin material is first applied to the bending piece side during molding of the plate frame main body. Therefore, no weld is generated in the bending piece, and the bending piece is less likely to break when the wiring device is mounted. Further, according to the configuration of claim 3, the inside of the side piece between the gap and the opening, which corresponds to both end boundary positions of the central instrument mounting position of the opening, and the bending piece are bridged. Along with integrally connecting with one piece, a flexible piece on the side opposite to the connecting point of the bridging piece and an outer part of the side piece parallel to the inner part via the gap are integrally joined with another bridging piece, Since a long slit that spreads in both ends centering on the connecting point of the other bridging piece to the outer part is formed in the outer part, the bending piece in the slit part is easily bent, and the wiring device is attached to the center of the opening. In this case, it becomes easy to insert the locking piece of the wiring device.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1, FIG. 2, FIG. 7, and FIG. 8, the plate frame main body 2 made of synthetic resin is formed into a flat shape, and has a size capable of mounting three standard wiring tool modules, one wiring tool A. The opening 1 is provided at the center. The plate frame main body 2 has a bending piece 4 on one of the side pieces 3 on both sides and a fixing portion 10 on the other side 3 '.

A wiring device A such as an outlet is exposed in the opening 1 and its front surface is exposed and is detachably attached to the plate frame body 2. Wiring device A is a body 11a and a cover 11b.
And are connected by a pair of metal assembly frames 12, and the assembly frame 1
A pair of locking pieces 13 are provided so as to project from the side end surfaces of 2. The wiring device A has a size of one standardized wiring device module, and the opening 1 of the plate frame body 2 has a size such that three wiring devices A can be mounted.

The plate frame main body 2 is installed on the front surface of the opening surface of the embedding box buried in the wall surface or the like,
At the top and bottom of the plate frame body 2, there are long and circular mounting holes 1
4 and 15 are drilled respectively. In the side piece 3 of the plate frame main body 2, an inner portion 3a and an outer portion 3b are integrally formed in parallel with each other with a gap 6 therebetween.
Both ends are integrally connected to both end pieces 5 of the plate frame main body 2 at the inner end of the gap 6 between them to form the flexible piece 4 having flexibility. As shown in FIG. 6, the cross section of the inner side portion 3a of the side piece 3 is formed in an inverted L-shape and is thinner than the bending piece 4, and the resin material first flows to the bending piece 4 side during molding,
Welding is prevented from occurring in the bending piece 4. Further, both ends of the gap 6 are made longer than in the conventional case in such a manner that they enter the both end pieces 5 of the plate frame main body 2, so that the span of the bending piece 4 becomes large and the amount of bending becomes large.

Two portions 3 of the side piece 3 are provided at two places of the bending piece 4 corresponding to both end portions of the wiring equipment insertion position at the center of the opening 1.
The inner surfaces of a and 3b are connected by bridging pieces 7 and 8. The outer portion 3b is formed with slits 9 which are long in both end directions with the connecting point of the bridging piece 8 as the center, and the inner portion of the slit 9 is made thin, and the bridging piece 8 is joined to the thin portion to bend The piece 4 is easily bent in the lateral direction.

A pair of recesses 16 are formed on the inner surface of the bending piece 4.
As shown in FIG. 1, the recess 16 has a rear surface side as a step portion 17 with 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 back surface of the plate frame body 2. Plate frame body 2
A fixing portion 10 is formed on the side piece 3'of the. That is,
As shown in FIG. 2, a fixing rib 19 is integrally formed on the back surface of the side piece 3 '. A recess 20 is formed in the side piece 3 ′ so as to be inserted into the fixed rib 19 side, and three pairs of step portions 21 are formed on the back surface side of the recess 20. The fixing rib 19 is formed so as to project from the back surface of the plate frame body 2. Further, as shown in FIG. 1 (b), an inclined surface 22 is formed on the side surface of the fixed rib 19 and on the back side corresponding to the step portion 21, and the inclined surface 22 is provided with the wiring device A. When the stop piece 13 abuts and follows, the bending piece 4 is bent by the other locking piece 13.
Is designed to bend outward.

The front surface of the plate frame main body 2 is recessed from the periphery by one step, and the decorative plate 23 is detachably mounted on the front surface. That is, a plurality of engagement pieces 24 are integrally provided on the back surface of the decorative plate 23, and the engagement holes 25 that engage with the engagement pieces 24 are provided in the plate frame body 2.
Has been perforated. An opening window 26 for exposing the front surface of the wiring device A is provided in the center of the decorative plate 23. In this embodiment, the decorative plate 23 for one wiring device corresponding to each opening 1 is used. Therefore,
Depending on the number of wiring devices used, the decorative plate 23 provided with the opening windows 26 corresponding to the number used may be used.

The driver 2 for releasing the wiring device A between the pair of recesses 20 of the side piece 3'of the plate frame body 2
An insertion hole 29 for inserting 8 is provided so as to penetrate 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, protrusions 18 are formed on both sides of the step portion 21 of the fixing rib 19, and the engagement piece 13 of the wiring device A is inserted into the step portion 21 by the protrusions 18. After fitting the wiring device A when locked, rattling and center shift are prevented.
Further, as shown in FIG. 6, protrusions 43 are integrally formed on the side surfaces where the bending piece 4 and the outer portion 3b face each other, and are provided in the slit 27 between the bending piece 4 and the inner portion 3a. Even if the tip end of the driver 28 is mistakenly inserted when the wiring device A is removed, the tip end of the driver 28 hits the protrusion 43, so that the driver 28 can be prevented from being mistakenly inserted.

Next, the attaching / detaching operation of the wiring device A to / from the plate frame body 2 will be described. First, as shown in FIG.
The locking piece 13 on one side of the wiring device A is bent and the step portion 17 on the side of the bending piece 4
And the other locking piece 13 is moved to the front side along the inclined surface 22 of the fixed rib 19. The wiring device A moves to the side of the bending piece 4 by abutting the inclined surface 22 and moving it along the inclined surface 22. Therefore, the one locking piece 13 biases the bending piece 4 to the outside to bend it. Then, when the other locking piece 13 gets over the inclined surface 22 and is inserted and locked in the step portion 21, the wiring device A is returned to the right side in FIG. 8 by the restoring force of the bending piece 4, and both locking pieces 13 are While locking to the steps 17 and 21,
The wiring device A is attached to the plate frame body 2 by contacting the back surface of the plate frame body 2. That is, one of the locking pieces 13 of the wiring device A is first inserted into the movable-side bending piece 4 side, and the movable-side bending piece 4 is pushed outward by the fixed-side inclined surface 22 to be fitted therein. That is, the bending piece 4 on the side of the step portion 17 where the locking piece 13 is inserted and locked first is bent in the lateral direction, and the fixing rib 19 side on the side of the step portion 21 inserted later is not bent.

Next, when the wiring device A is removed from the plate frame main body 2, it is carried out as follows. That is, the driver 28 is inserted into the insertion hole 29 from the front surface, and the tip of the driver 28 is attached to the assembly frame 12 between the locking pieces 13 as shown in FIG.
And the driver 28 is tilted outward as shown by the alternate long and short dash line in the figure. Then, the wiring device A is urged toward the bending piece 4 side by the driver 28, and the locking piece 13 is removed from the step portion 22 to move the wiring device A to the plate frame main body 2
Can be easily removed from. At this time, chamfer 3
Since the void is formed by 0, the degree of freedom of the driver 28 can be increased, and the driver 28 can be easily removed. It is also possible to release the wiring device A by manually shifting it to the side of the bending piece 4 without using the driver 28.

[0020]

According to the first aspect of the present invention, the both ends of the gap are formed in one of the side pieces of the plate frame main body and the both ends are located in the both end pieces of the plate frame main body. Since the flexible pieces that are integrally connected and flexible are provided, the span of the flexible pieces can be long when the wiring device is mounted at both ends of the opening, so that the bending amount of the flexible pieces can be increased. This has the effect of facilitating insertion of the locking piece of the device.

According to the configuration of the invention described in claim 2,
Since the cross-section of the inner side portion of the side piece between the gap and the opening is formed in an inverted L shape to have a thinner wall than the cross-section of the bending piece, the resin material is first applied to the bending piece side during molding of the plate frame main body. Since there is no weld in the bending piece, the bending piece is less likely to break when the wiring device is attached.

Further, according to the third aspect of the invention, the inner side portion of the side piece between the gap and the opening, which corresponds to both end boundary positions of the central instrument mounting position of the opening, and the bending piece. The bridge pieces are integrally connected with each other, and the bending piece on the opposite side of the connecting point of the bridge piece and the outer side portion of the side piece parallel to the inner side portion through the gap are integrated with another bridge piece. Since a long slit is formed in the outer portion, which is joined to the outer portion of the other bridging piece and centered around the joining point to the outer portion, the bending piece in the slit portion is easily bent, and the wiring is formed in the center of the opening. When wearing equipment
This has the effect of facilitating the insertion of the locking piece of the wiring device.

[Brief description of drawings]

FIG. 1A is a front view of a plate frame main body according to an embodiment of the present invention. FIG. 3B is a rupturable bottom view of the plate frame main body according to the embodiment of the present invention.

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

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

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

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

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

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

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

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

FIG. 10 is a perspective view of a part of the conventional example that can be omitted.

[Explanation of symbols]

 1 Opening Part 2 Plate Frame Main Body 3 Side Piece 3a Inner Part 3b Outer Part 3'Side Piece 4 Bending Piece 5 Both End Pieces 6 Gap

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Takao Ota 2856 Shiratsuka-cho, Tsu City, Mie Prefecture Asahi Electric Industrial Co., Ltd. (72) Inventor Hideki Yokoyama 1048 Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.

Claims (3)

[Claims] Claim: What is claimed is: 1. A decorative plate is mounted on the front surface, an opening for exposing a wiring device is formed in the center, and a plate frame body made of synthetic resin is formed to cover the opening surface side of the embedding hole. Provided on one of the side pieces of the plate frame main body located on both sides is a flexible bending piece into which one of the locking pieces protruding from both sides of the wiring device is inserted and locked first, and the other side piece of the plate frame main body. In the plate frame for wiring equipment, in which the other locking piece of the wiring equipment is inserted and locked later, in the wiring equipment plate frame, both ends are formed in one of the side pieces of the plate frame body and both ends are inside the both end pieces of the plate frame body. A plate frame for a wiring device, characterized in that a bending piece is provided inside the gap positioned at a position such that the bending piece can be bent by connecting both ends to the inside of the gap. 2. The wiring according to claim 1, wherein a cross section of an inner portion of the side piece between the gap and the opening is formed in an inverted L shape so as to be thinner than a cross section of the bending piece. Plate frame for equipment. 3. An inner portion of a side piece between the gap and the opening, which corresponds to a boundary position of both ends of a central instrument mounting position of the opening, and a flexible piece are integrally coupled with a bridging piece. , A flexible piece on the side opposite to the connecting point of the bridging piece and an outer part of the side piece parallel to the inner part through the gap are integrally joined with another bridging piece, 2. The plate frame for a wiring device according to claim 1, wherein long slits are formed in the outer portion so as to extend in both end directions around the connection point with respect to the outer portion.