JPH0337374B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a plate mounting structure for a wiring device.

[Background technology]

Conventionally, the plate mounting structure of this type of wiring device had the disadvantage that the mounting screws for mounting the plate were visible from the outside, and especially when multiple mounting screws were installed, the number of mounting screws increased and became very noticeable.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned drawbacks.
The purpose is to provide a plate mounting structure for a wiring device in which the mounting screws are not visible from the outside, the appearance is excellent, and the plate can be mounted reliably.

[Disclosure of the invention]

FIG. 1 shows an exploded perspective view of one embodiment.
1 is a general mounting frame such as a ready-made one, and this mounting frame 1 is made of metal or synthetic resin molded product, etc., and has an opening 2 in the center for attaching an appliance such as an outlet or a switch, and has an opening 2 at both ends. Fixing screw insertion holes 3, 3 for fixing to an embedded box etc. are bored in the part. Further, a mounting screw hole 6 is provided in which a mounting screw 5 for mounting a mounting tool 4, which will be described later, is screwed into the mounting screw hole 6. The fixture 4 is made of a metal or synthetic resin molded product, has a peripheral wall 4a that protrudes rearward on its periphery, and has an insertion hole 7 in the center of each end for inserting the mounting screw 5. At the same time, a slit hole 8 extending in both directions is bored, and projections 9, 9 for engaging the projections and recesses are provided on the outer surface of the peripheral wall 4a at both ends, and behind these projections 9 (downward in the figure). is provided with a protruding screwdriver 11 for supporting a screwdriver (not shown) for removing the plate 10, which will be described later. Furthermore, an opening window 12 corresponding to the opening 2 is bored in the center of the front surface of the fixture 4.

The plate 10 is made of, for example, a colored steel plate or the like formed by pressing or the like, and has a peripheral wall 10a that protrudes rearward, and has two openings 13, 13 drilled in the front surface for exposing instruments, for example. There is. Further, a hole 14 for inserting a screwdriver (not shown) is formed in the center of the rear edge of the peripheral wall 10a at both ends.
As shown in FIG. 2, on the inner surface of the peripheral wall 10a on both sides, there are recesses 1 corresponding to the projections 9, 9 for engaging the projections and recesses.
5 and 15 are provided.

Therefore, when installing the plate 10, first the fixture 4 is mounted on the front surface of the mounting frame 1 and fixed with the mounting screws 5, and then the peripheral wall 4a of the fixture 4 is fitted inside the peripheral wall 10a of the plate 10. Then, the plate 10 is fitted onto the front surface of the fixture 4. During this fitting, both ends of the fixture 4 are press-fitted into the plate 10 while being slightly bent inward by the slit holes 8, and the protrusions 9 are engaged in the recesses 15 as shown in FIG. Then, due to its elasticity, both ends of the fixture 4 return to their original positions, and the engaged state is reliably maintained. and 1 per driver
1 will fit into the notch of the hole 14.

If the plate 10 is attached in this way, the plate 10 makes the mounting screws 5 invisible from the outside. Next, when the plate 10 is to be removed, the tip of a screwdriver may be inserted into the hole 14 and the plate 10 may be removed using a lever principle. At this time, the screwdriver contact 11 prevents the tip of the screwdriver from hitting the wall surface of the mounting surface and causing no damage.

FIG. 3 shows another embodiment of the present invention, in which the fixture 4 has both ends bent into an L-shape, and the bent portions form a peripheral wall 4a. Therefore, the width dimension is set to a module dimension A that corresponds to a multiple plate. If a cut groove 16 is provided on the side of this fixture 4 as shown in FIG. 4, when installing a double arrangement or embedded outlet type plate, the side side is cut with the cut groove 16, and the large hole 18 is inserted into the side. It can be easily formed as shown in FIG. 17 in Figure 5
indicates a large device for two stations.

〔Effect of the invention〕

In the present invention, the mounting tool is screwed and fixed to the mounting frame, and the plate is fitted to the mounting tool. Therefore, the plate does not require mounting screws, and the mounting screws are not visible from the outside, making it aesthetically pleasing. Moreover, due to the slit holes in the fixture, the edge of the fixture is bent when the concave-convex engaging means of the fixture and the concave-convex engaged means of the plate are engaged, and the concave-convex engagement can be easily performed. Moreover, since the mounting tool is fitted into the plate, there is no misalignment of the plate, and the plate can be mounted securely.Furthermore, because of the structure described above, the existing mounting frame can be used as is. In addition, since there is no need to protrude the engaging means for a long time in order to obtain the deflection of the engaging means during engagement of the projections and recesses, there is no need to worry about breakage or deformation during handling.

By providing cut grooves on the sides of the fixture, it is possible to easily expand the mounting of multiple plates.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of one embodiment of the present invention;
3 is an exploded perspective view of the present invention, FIG. 4 is a perspective view of a fixture of another embodiment of the present invention, and FIG. 5 is a side view of the same in use. 1 is a mounting frame, 2 is an opening, 4 is a mounting tool, 4a is a peripheral wall, 5 is a mounting screw, 6 is a mounting screw hole, 7 is an insertion hole, 8 is a slit hole, 9 is a protrusion for engaging unevenness ,
10 is a plate, 10a is a peripheral wall, 12 is an opening window,
13 is an opening hole, 14 is a hole, 15 is a recess for engaging the projections and depressions, and 16 is a cut groove.

Claims (1)

[Scope of Claims] 1. A mounting frame having an opening for mounting an appliance such as an outlet or a switch in the center of the front, and screw holes for mounting at both ends, and a mounting frame having an opening for mounting the appliance such as an outlet or a switch in the center of the front. It has a corresponding opening window and a peripheral wall that protrudes rearward from at least the edges of both ends, and the outer surface of this peripheral wall is provided with a concave-convex engaging means, and the edge near the concave-convex engaging means is provided with a A mounting tool is formed on the inner surface of both ends by forming a slit hole in the hole and a through hole on each end for inserting the mounting screw, which is screwed into the mounting screw hole from the front. A plate mounting structure for a wiring device, comprising a plate having a peripheral wall protruding rearward from the peripheral edge for engaging the concave-convex engaging means with the concave-convex engaging means, and a plate having an opening hole for exposing the device in the front surface. 2. A plate mounting structure for a wiring device as set forth in claim 1, wherein a cut groove is formed on the side of the fixture so that the side can be freely cut.