JPH0223051Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for attaching and detaching wiring devices from a synthetic resin plate for attaching wiring devices that is directly attached to a panel wall or to a recessed box.

Conventionally, when installing multiple wiring devices such as switches and outlets, metal mounting frames and plates have been used, which not only complicates the mounting structure, but also causes the mounted plates to be tilted. In some cases, it is necessary to correct the mounting posture from the mounting frame, which has the disadvantage that adjusting the posture is time-consuming. For this reason, some devices have eliminated the mounting frame and fixed the wiring device to the plate, but these have the inconvenience of not being able to replace only the wiring device and not being able to use multiple wiring devices. Therefore, the inventor of the present invention previously proposed a utility model registration application No. 1976-76498 (filed on June 7, 1974) for a wiring device mounting device that can be reliably installed and removed simply by inserting the wiring device into the plate. This led to the proposal of a synthetic resin plate.

According to the above invention, a support wall 15 is provided on the back surface of the synthetic resin plate 1, facing the mounting hole 4 of the wiring device 21, and has at least one lower part elastically bent outward, and the support wall 15 is provided at the lower end of the support wall 15 for the mounting hole 4 of the wiring device 21. A locking protrusion 16 protruding inwardly from the hole 4 is connected to a groove 20 with an open upper end on the side opposite to the mounting hole 4, and a fulcrum is provided at an intermediate position between the support wall 15 and the tip of the groove 20. A locking block 12 is provided protrudingly on the end wall 11 facing the support wall 15, and the wiring fitting 21 inserted into the mounting hole 4 from above the plate 1 forms a recess formed on both outer sides thereof. place 27
A synthetic resin plate for attaching a wiring device has been provided, which is characterized in that a locking stand 12 and a locking protrusion 16 are engaged with the plate so that the plate can be removably installed. A groove with an opening at the top end is provided on the side opposite to the mounting hole 4, and a fulcrum part must be formed at an intermediate position between the support wall and the tip of the groove, so the structure from which the wiring device can be removed becomes too large. It was hot. Further, the above-mentioned idea had the disadvantage that the structure of the molding die was complicated.

This invention was made in view of these points,
It has a wiring fixture removal structure that is particularly effective for compact wiring fixture mounting structures such as the elongated wiring fixture mounting structures that are often used in bathroom vanities and partition walls in recent years, and the structure and manufacturing of molding molds. To provide a synthetic resin plate for easy installation of wiring equipment.

An embodiment of the present invention shown in the drawings will be described below. The plate 1 made of synthetic resin has a recess 2 on the front side.
One wiring fixture mounting hole 4 is formed in the flat plate part 3, the mounting hole 5 of the plate 1, the mounting hole 7 of the decorative plate 6 to be installed in the recess 2, and the mounting bracket 8 used when mounting the plate 1 to the panel wall. It has a support hole 9. A side wall 10 and an end wall 11 are provided on the back surface of the flat plate portion 3.
A locking base 12 is provided at the lower part of the end wall 11 to project inward of the mounting hole 4.

An end wall 13 is provided on the side opposite to the end wall 11 of the mounting hole 4.
, and insert both ends of the locking base 1 into the mounting hole 4.
A support stand 14 is formed to protrude at the same height as 2.

A support wall 15 is provided protrudingly in the middle part of a support base 14 formed at both end portions of the end wall 13, and the upper surface 17 of the support base 15, which protrudes inward from the mounting hole 4, is attached to the lower end of the support base 14.
A locking protrusion 16 having approximately the same height as that is provided, and a removal piece 18 is provided by making a part of the support wall 15 hang downward.

The wiring device 21 (switch in the embodiment) is connected to the lid 22
A recess 27 is formed by the left and right protrusions 25 provided on both ends of the lid 22, a protrusion 29 provided on the case end face 26, and the metal fitting 24, and the protrusion Slope 2 below 29
form 8.

To attach the wiring device 21 to the plate 1, the case 23 is inserted into the attachment hole 4 from above. In such a case, the slopes 28 on both sides of the wiring device 21 are connected to the plate 1.
When it comes into contact with the locking base 12 and the locking projection 16, the locking projection 16 is elastically deformed outward, and when the protrusion 29 passes through the locking base 12 and the locking projection 16, the support wall 15
Due to their elasticity, the locking base 12 and the locking protrusion 16 engage in the recess 27, and the wiring device 21 is prevented from coming off and held.

After connecting the electric wire to the installed wiring device 21, the plate 1 is screwed to the recessed box through the long hole 5, and then the leg 19 of the decorative plate 6 is inserted into the hole 7, and the decorative plate 6 is fitted into the recess 2. do.

To remove the wiring device 21 from the plate 1, remove the decorative plate 6, remove the plate 1, and then insert a screwdriver 30 or the like between the case end surface 26 and the removal piece 18, and move the support wall 15 to the position indicated by the broken line using the case end surface as a fulcrum. The locking protrusion 16 and the locking base 12 are bent to
The wiring device 21 can be pulled out from the respective recesses 27, and then the wiring device 21 can be pulled out upward.

In the embodiment described above, since the detachable piece 18 is provided at the lower part of the support wall 15, the outer diameter of the plate can be made smaller than that of the prior art, and the structure and manufacture of the molding die are greatly facilitated.

[Brief explanation of drawings]

Figure 1 is a front view of one embodiment of the present invention, the right half is a front view with the decorative plate removed, and Figure 2 is the front view of one embodiment of the present invention.
Figure 3 is a rear view, Figure 4 is an enlarged cross-sectional view taken along line B-B in Figure 1, Figure 5 is an enlarged front view of the continuous wiring device, Figure 6 is also an enlarged view. Side view,
FIG. 7 is a partial sectional view of the main parts according to the earlier application. 1...Plate, 4...Wiring device mounting hole, 1
DESCRIPTION OF SYMBOLS 1, 13... End wall, 15... Supporting wall, 16... Locking protrusion, 18... Removal piece, 21... Wiring device.

Claims (1)

[Scope of utility model registration request] A support wall 15 is provided on the back surface of the synthetic resin plate 1, facing the mounting hole 4 of the wiring device 21, and having at least one lower portion elastically bent outward. A protruding locking protrusion 16 is provided, and a locking stand 12 is protruded from the end wall 11 facing the support wall 15, and the mounting hole 4 is provided from above the plate 1.
In the synthetic resin plate for mounting a wiring device, in which the wiring device 21 inserted into the wiring device 21 can be attached by engaging the locking base 12 and the locking protrusion 16 into the recesses 27 formed on both outer sides thereof. wall 1
A synthetic resin plate for mounting a wiring device, characterized in that a part of the wiring device 5 is made to hang downward and a removal piece 18 is provided to enable the wiring device to be removed.