JPS6339982Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to the installation of a casing for an electronic device, such as a car radio, so that the casing can be detachably attached to a support fixed to a car dash board or the like. Regarding structure.

[Technical background of the invention]

Conventionally, as shown in the perspective view of FIG. 1, mounting screws 3 are used from inside the housing 1 to attach a housing 1 for an in-vehicle radio to a support 2 fixed to a car dashboard or the like. , the bottom surface 1 which is the leg part of the housing 1
A was attached to the support. In FIG. 1, reference numeral 1b is an insertion hole for the mounting screw 3, and reference numeral 2a is a female threaded portion into which the mounting screw 3 is screwed. Further, reference numeral 4 is a guide pin installed on the bottom surface 1a of the housing 1, and reference numeral 2b is a guide hole through which the guide pin 3 is inserted.

By the way, according to the conventional housing mounting structure described above, when installing the housing 1 to the support 2,
Since the installation was done from inside the housing 1 using the mounting screws 3, during this installation, it was necessary to temporarily remove the contents (electronic components, etc.) placed inside the housing 1 or to tighten the installation screws 3. A space for the tools had to be provided in the housing 1 in advance. For this reason, not only is the work complicated when installing and removing the housing 1, but also
When a space for using tools is provided within the housing, this becomes a factor that reduces the mounting efficiency of the contents accommodated in the housing.

On the other hand, in order to increase the mounting efficiency of the contents housed in the housing, a hinge means is provided on one side of the transceiver corresponding to the housing and a transceiver fixing plate corresponding to the support, and a snap lock is provided on the other side. A structure in which a transceiver can be attached to a transceiver fixing plate from outside the transceiver housing is disclosed in Japanese Utility Model Application Publication No. 49-96817 Microfilm.

[Problems with background technology]

However, in the structure described in Utility Model Application Publication No. 49-96817 Microfilm, the transceiver is fixed to the transceiver fixing plate at two places, so the installation work space is limited, such as on a car dash board. When attaching the casing to such locations, there is a problem in that at least one of the locations must be attached in a place where there is limited work space, resulting in a very complicated work.

[Purpose of invention]

SUMMARY OF THE INVENTION In view of the drawbacks of the conventional housing mounting structure described above, an object of the present invention is to provide a housing mounting structure that allows the housing to be easily mounted even in a limited installation work space.

[Summary of the idea]

In order to achieve this object, the mounting structure of the casing according to the present invention is such that one of the engaging parts consisting of a wedge-shaped protrusion and a recess that engages with the wedge-shaped protrusion is attached to the leg. and the other is disposed on a support, and a tightening and fixing screw is provided on the side of the support that faces opposite to the engaging portion, and the direction in which the tightening and fixing screw advances and the convex and recessed portions are aligned. A screw for tightening and fixing is provided on a side of the leg of the casing that faces the engaging part and is perpendicular to the direction in which the screw for tightening and fixing moves. A screw insertion portion is formed so that the convex portion and the concave portion are engaged with each other by the tightening and fixing screw.

[Example of idea]

Hereinafter, one embodiment of the housing mounting structure according to the present invention will be described in detail.

FIG. 2 is a perspective view of essential parts showing the mounting structure of the casing according to the present invention, and the same parts as in FIG. 1 are designated by the same symbols.

On the bottom surface 1a of the casing 1, a leg 10 separate from the casing 1 is provided with a coupling means (for example, a mounting screw) (not shown).
It is fixed by. Back side 1 of this leg 10
A wedge-shaped convex portion 11 constituting one of the engaging portions is attached and fixed to 0b by a fastening means such as a screw (not shown). Note that the convex portion 11 may be formed integrally with the leg portion 10 by press molding or the like. Further, a pair of notches 10c and 10c' are formed on the front surface 10a of this leg portion 10.

On the other hand, a recessed portion 13 constituting the other of the engaging portions is attached and fixed to the rear portion of the support 12 to which the leg portions 10 of the housing 1 are attached by fastening means such as screws (not shown). Incidentally, like the convex portion 11, this concave portion 13 may also be formed integrally with the support 12 by press molding or the like. Furthermore, the support 12
A tongue piece 14 is erected at the front part by welding or the like, and this tongue piece 14 is formed with a female threaded portion 14a into which a tightening and fixing screw 15 is screwed.

Next, the leg portion 10 and the support 1 having the above-described configuration will be described.
The installation procedure with 2 will be explained in detail.

3A, 3B, and 3C are sectional views of essential parts for explaining the procedure for attaching the leg portion 10 and the support 12, and the same parts as in FIG. 2 are designated by the same reference numerals.

First, as shown in FIG. 3a, the legs 10 of the housing 1
is housed in the support 12 from above the support 12 as shown by arrow A. In addition, in this case, the leg portion 10
The tightening and fixing screws 15 are fitted into the notch holes 10c and 10c' formed in the holes 10c and 10c'. Thereafter, as shown in FIG. 1B, by pressing the housing 1 in the direction of arrow B or tightening the tightening fixing screw 15, the housing 1 is attached to the leg 10 as shown in FIG. Convex portion 11
and the recess 13 attached to the support 12 engage with each other, and the other end is connected to the tightening fixing screw 1.
Concluded by 5.

It should be noted that since the protrusion 11 and the recess 13, which are the engaging parts, have a wedge shape, when engaged, the protrusion of the leg 10, as shown in the enlarged cross-sectional view of the main part in FIG. Even if the positions of the support 11 and the recess 13 of the support 12 are slightly misaligned, accurate positioning in the height direction H can be performed after engagement, as shown in FIG.

Furthermore, since the casing 1 and the legs 10 are formed separately, by attaching the legs 10 in the opposite direction to the casing 1, it is possible to As shown in FIG. 2, the tightening and fixing screws 15 can be tightened from the rear of the housing. Note that in FIGS. 5a and 5b, the reference numeral 1d indicates the front part of the housing 1.

In addition, in the above embodiment, the convex portion 11 is connected to the leg portion 1.
0, the concave portion 13 that engages with the convex portion 11 is attached to the support 1.
However, the present invention is of course not limited to the above embodiment, and the convex portion 11 is attached to the support 12.
Alternatively, the recess 13 may be attached to the leg 10. Further, in the above embodiment, the notches 10c and 10c' were formed in the leg part 10, but in the present invention, an insertion hole through which the tightening and fixing screw 15 is inserted is formed in place of the notches 10c and 10c'. You can do it like this.

[Effect of idea]

This device has a structure in which an engagement part consisting of a wedge-shaped protrusion and a recess that engages with the protrusion is provided on one side of the fixed support and the leg of the housing, and a fastening means consisting of a fastening screw that fastens the support and the leg of the housing on the other side is formed, so that the housing can be attached to the support by tightening the fastening screw on the other side to engage the wedge-shaped protrusion and recess on one side. Therefore, the housing can be attached to the support by working on the housing from only one side, and the housing can be easily attached even in places with limited installation work space.

In addition, the present invention has a structure in which the direction in which the fastening fixing screw advances and the direction in which the protrusions and recesses engage are the same, so that the force from tightening the fastening fixing screw is maximized. It can affect the engagement. Therefore, the housing can be firmly attached to the support.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view showing a conventional housing mounting structure, Figure 2 is an exploded perspective view showing a housing mounting structure according to the present invention, and Figures 3a, b, and c are respectively views of the housing mounting structure. Figures 4a and 4b are enlarged sectional views of the main parts showing the engagement state between the protrusion and the recess, and Figures 5a and b show the mounting position of the casing relative to the support. Each is a side view. 1...Housing, 10...Legs, 11...Protrusion, 1
2... Support, 13... Recess, 14... Tongue piece, 1
4a... Female thread part, 15... Screw for tightening and fixing.

Claims (1)

[Scope of utility model registration request] In a case mounting structure in which the legs of the case are removably attached to a fixed support, an engaging part consisting of a wedge-shaped protrusion and a recess that engages with the wedge-shaped protrusion is provided. One of them is disposed on the leg and the other is disposed on the support, and a tightening and fixing screw is provided on the side of the support that faces opposite to the engaging part in the direction in which the tightening and fixing screw advances. and the direction in which the convex portion and the concave portion engage are aligned,
Further, an insertion portion for the tightening and fixing screw is formed on a side of the leg of the casing that faces the engaging portion and is orthogonal to the advancing direction of the tightening and fixing screw, so that the A mounting structure for a housing, characterized in that the convex portion and the concave portion are engaged with each other by the tightening and fixing screw.