JPH09162567A - Fixing structure of metal fixture to sheet metal cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a work for fixing a metal fixture to a sheet metal cabinet. SOLUTION: Cut raised protruding parts 10a are arranged on several parts of an inside surface part of a sheet metal cabinet 10. Recessed parts 11a which are formed for engaging with the protruding parts 10a are arranged on a metal fixture 11. At the time of binding both components, positioning in the vertical and horizontal directions is completed only by mounting the metal fixture 11 conformably with the protruding parts 10a. It is made unnecessary to support the metal fixture 11 by some means, and the fixing work is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a metal fitting for a sheet metal housing, which is applied to a case body for housing an electric component or a mounting board thereof, a shield case or the like.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing an example of a conventional shield case for electric equipment. Reference numeral 1 denotes a rectangular metal plate having both sides bent to form a U-shape when viewed from the front. Sheet metal housing, 2 is a lid-like mounting bracket, 3 is a screw, 4
Is a plurality of round holes formed in the upper portions of both side surfaces of the sheet metal housing 1,
Reference numeral 5 denotes a tap formed on the side surface of the mounting member 2. The mounting bracket 2 has substantially the same shape as the bottom surface of the sheet metal housing 1, and when the mounting bracket 2 is fitted to the upper portions of both side surfaces of the sheet metal housing 1, the taps 5 correspond to the positions of the round holes 4, respectively. . Then, the mounting member 2 is attached to the sheet metal housing 1 by inserting the screw 3 into the round hole 4 formed in the sheet metal housing 1 and fastening the screw 3 to the tap 5 formed in the mounting member 2.

[0003]

However, according to the above-mentioned conventional mounting structure, an operator supports the mounting bracket 2 by hand, and at the same time, positions the round hole 4 and the tap 5 and fastens the screw 3. There is a problem in that the number of screws must be increased because the screw 3 is the only one that receives the load applied to the mounting bracket.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mounting structure for a sheet metal housing which solves the conventional problems described above, reduces the number of parts for mounting the metal fittings, and improves the assembly workability. To do.

[0005]

The present invention as a technical means for effectively solving and achieving the above-mentioned problems is at least 1
For a sheet metal housing having a convex portion formed by cutting and raising a part of these facing surfaces inward, having a pair of facing surfaces,
The metal fitting is characterized in that a mounting metal fitting having a concave portion on a part of a side portion is arranged so as to be stretched between the facing surfaces, and the convex portion and the concave portion are fitted to each other. Vertical and horizontal positioning is completed by fitting the protrusions and recesses at the time of mounting, and since the mounting bracket is mounted on the protrusions, there is no need to support it with hands, etc., improving workability. To do. Further, according to the present invention, the load related to the mounting bracket can be received by the convex portion, and the number of screws can be reduced as compared with the conventional case.

[0006]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the structure of a shield case utilizing the embodiment of the present invention, 10 is a sheet metal housing, and this sheet metal housing 10 is the conventional sheet metal housing shown in FIG. 1
In the above, the positions where the round holes 4 are drilled are both ends of the upper portions of both side surfaces, and the convex portions 10a are erected by cutting and raising a part of each side of the round holes 4. 11 is a sheet metal housing 10
Shows a fitting that fits between both sides of the. This mounting bracket 11 is the same as the conventional mounting bracket 2 shown in FIG.
The taps 5 are formed at both end portions on both side surfaces, and concave portions 11a are provided on the side surfaces of the taps 5 and at a part of the edge portion of the lower surface. It should be noted that the same members as the members according to the conventional example shown in FIG.
Detailed description is omitted.

FIG. 2 is a sectional view showing a mounting structure of a mounting bracket to a sheet metal housing, and in particular, FIG. 2 (a) is a sectional view showing a fitted state of a convex portion and a concave portion. 2 (b) is a sectional view taken along line AA of FIG. 2 (a). As shown in FIG. 2, when the mounting bracket 11 is placed on the convex portion 10a of the sheet metal housing 10, the convex portion 10a fits into the concave portion 11a. At this time,
The convex portion 10a forms a plane substantially the same as the bottom surface of the mounting member 11.

According to the present embodiment having such a configuration, the positions of the round holes 4 and the taps 5 are accurately determined only by fitting the convex portion 10a into the concave portion 11a, and at this time, Since the mounting member 11 is mounted on the convex portion 10a, there is no need to support the mounting member 11 with a hand or the like, and there is an advantage that the workability of fastening the screw 3 can be greatly improved. Further, according to the above-described embodiment, since the load applied to the mounting member 11 can be received by the convex portion 10a, there is an advantage that the number of screws 3 can be reduced as compared with the conventional example.

In the present embodiment, the case of the electric component is taken as an example, but the present invention is not limited to the constitution and its application range is extremely wide. However, by applying it to the case of the electric component, the round hole 4 and the tap 5 can be easily positioned even with a relatively small sheet metal housing and mounting bracket, so that the assembly can be easily performed.

[0011]

As described above, according to the present invention configured as described above, it is not necessary to support it with a hand or the like as in the conventional case, and the workability of fastening is improved. Further, according to the present invention, since the convex portion can receive the load applied to the mounting bracket, it is possible to reduce the number of screws.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a mounting structure of a mounting bracket to a sheet metal housing.

FIG. 3 is a perspective view showing a configuration of a case of a conventional electric component.

[Explanation of symbols]

1, 10 ... Sheet metal housing, 2, 11 ... Mounting bracket, 3 ... Screw,
4 ... Round hole, 5 ... Tap, 10a ... Convex portion, 11a ...
Concave part.

Claims (1)

[Claims] 1. A sheet metal casing having at least one pair of facing surfaces, and a convex portion formed by cutting and raising a part of the facing surfaces inward, with respect to a side portion having a recessed portion. A mounting structure of a metal fitting to a sheet metal housing, wherein the mounting metal fitting is disposed between the facing surfaces, and the convex portion and the concave portion are fitted to each other.