JPH0132770Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a structure for temporarily fixing plate-shaped members such as frames and sub-panels having corner portions, which are component parts of audio products and the like.

(Prior art) In general, when fitting a sub-panel etc. to a frame of a chassis etc. and fixing it with screws, etc., in audio products etc., there is no optimal structure for temporarily fixing the fitted state of both. However, when screwing with an automatic screwing device, the screw holes may be misaligned and cannot be fixed properly.

Conventionally, as shown in FIG. 1, an engagement hole 23 is formed in the bent portion 22 of the upper case 21 as a structure for engaging the upper case 21 and the lower case 24, which are formed in a substantially U-shaped cross section. At the same time, it has been proposed that the lower case 24 is formed with an engaging tongue piece 25 corresponding to the engaging hole 23 so that the two engage with each other, and both cases 21 and 24 are secured with screws.

However, in the above-mentioned case, in the temporarily fixed state before screwing, the engagement tongue piece 25 is simply inserted into the engagement hole 23, so there may be play in both the cases 21 and 24. In extreme cases, the engagement tongue piece 25 may come off and both cases 2
1 and 24 do not engage with each other, and thus cannot be used as is as a temporary fixing means for the above-mentioned casing.

(Purpose of the invention) The purpose of the invention is to eliminate the above-mentioned conventional drawbacks,
It is an object of the present invention to provide a temporary fixing structure for a plate-like member that can easily and accurately temporarily fix the plate-like member.

(Structure of the invention) A structure for temporarily fixing one plate-like member and the other plate-like member, each having a corner part, by overlapping them at the corner part, such as when attaching a sub-panel to a frame. A tongue piece formed on one side near the corner of one plate-like member, an engaging dowel formed at the tip of the tongue, and one side on the corner of one plate-like member. an engagement tongue protruding outward from the plate, an engagement hole formed on one side of the other plate-shaped member in correspondence with the engagement dowel, and a corner of the other plate-shaped member provided with the engagement tongue. It is characterized by comprising a notch hole formed so that a mating tongue piece can be tightly fitted therein.

(Embodiment) An embodiment of the present invention will be described based on FIGS. 2 to 5. In the figures, 1 is one plate member having a corner portion 2, and in the illustrated example, a frame such as a chassis is used. It is shown. Reference numeral 3 designates the other plate-like member having a corner part 4 to be attached to the one plate-like part 1, and a sub-panel fitted to the frame 1 is shown, and this corner part 4 is attached to the one plate-like part 1. It is superimposed and attached to the outer surface of the corner portion 2 of the member 1.

Reference numeral 5 denotes a tongue piece formed on one side surface 6 near the corner portion 2 of the above-mentioned one plate-shaped member 1, a substantially inverted U-shaped notch hole 7 is provided by punching, and the remaining piece is bent. It is formed by

Reference numeral 8 denotes an engaging dowel formed at the tip of the tongue piece 5.

Reference numerals 9 and 9' refer to engagement tongues which are projected outwardly from one side 6 of the corner portion 2 of the one plate member 1, and are provided above and below the tongues 5 in the illustrated example. The tip is formed in a semicircular shape.

Reference numeral 10 denotes an engagement hole formed in one side 11 of the other plate member 3 in correspondence with the engagement dowel 8.

Reference numerals 12 and 12' designate notch holes formed in the corner portions 4 of the other plate member 3 so that the engagement tongues 9 and 9' can be tightly fitted therein.

In the illustrated example, the tongue piece 5, the engaging dowel 8, and the engaging tongue pieces 9, 9' are placed on one plate member 1, and the engaging hole 10 and the cutout holes 12, 12' are placed on the other plate member 3. However, it goes without saying that they may be formed in the opposite manner.

Next, temporary fixing of one plate member 1 and the other plate member 3 will be explained.

The engaging tongue pieces 9, 9' are aligned with the notch holes 12, 1 so that the engaging dowel 8 is aligned with the horizontal axis of the engaging hole 10.
2', one side surface 6 of one plate-like member 1 is placed along the inside of one side surface 11 of the other plate-like member 3, and then one plate-like member 1 is brought into sliding contact in the left direction. Then, the engagement dowel 8 is properly fitted into the engagement hole 10 due to the leaf spring effect, and the engagement tongue piece 9,
9' is tightly fitted into the notched holes 12, 12', and is properly temporarily fastened without any looseness in the front-rear, left-right, and up-down directions. Therefore, positional displacement between one plate member 1 and the other plate member 3 is prevented only by the temporary fixing state, and there is no risk of positional displacement occurring during subsequent work such as screw fixing.

Note that the engagement dowel 8 is smoothly fitted into the engagement hole 10 without getting caught on the edge due to the notch 13 provided at the edge of the one side surface 11.

(Effects of the invention) According to the temporary fixing structure of plate-like members of the invention, when attaching a sub-panel to a frame, etc.
A structure for overlapping one plate-like member and the other plate-like member, each having a corner part, at the corner part and temporarily fixing them, wherein one side surface near the corner part of one plate-like member a tongue piece formed in
An engaging dowel formed at the tip of the tongue, an engaging tongue protruding outward from one side at the corner of one plate-like member, and an engaging dowel formed at the tip of the tongue, and an engaging dowel formed at the corner of one plate-like member outward from one side, and an engaging dowel formed at the tip of the other plate-like member. an engagement hole formed to correspond to the engagement dowel;
Since the other plate-like member has a notch hole formed in the corner portion thereof so that the above-mentioned engaging tongue piece can be tightly fitted, both plate-like members can be formed by simply inserting the engaging tongue piece into the notch hole. The engagement dowel is fitted into the engagement hole and temporarily secured, allowing easy assembly.

In particular, by tightly fitting the engaging tongue piece into the notch hole, the engaging dowel fits into the engaging hole, so both plate-like members can be accurately temporarily fastened, unlike the conventional temporary fastening. This eliminates the need for additional screws, which reduces the number of parts such as screws, and allows for accurate assembly because there is no positional shift even when the later installation work, such as screws, is performed by a robot.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional structure for engaging upper and lower cases, Figs. FIG. 3 is a perspective view showing the temporarily fastened state, FIG. 4 is a cross-sectional view taken along line A-A in FIG. 3, and FIG. 5 is a vertical cross-sectional view of the temporarily fastened corner part. . 1... One plate member, 2... Corner part, 3
...The other plate member, 4...Corner part, 5...
Tongue piece, 8... Engaging dowel, 9, 9'... Engaging tongue piece,
10...Engagement hole, 12, 12'...Notch hole.

Claims (1)

[Claims for Utility Model Registration] When attaching a sub-panel to a frame, one plate member and the other plate member, each having a corner portion, are overlapped at the corner portion and temporarily fixed. The structure includes a tongue piece formed on one side near a corner of one plate-like member, an engaging dowel formed at the tip of the tongue piece, and a corner part of one plate-like member. an engaging tongue protruding outward from one side of the other plate-like member, an engaging hole formed on one side of the other plate-like member corresponding to the above-mentioned engaging dowel, and a corner portion of the other plate-like member. and a notch hole formed so that the above-mentioned engagement tongue piece can be tightly fitted thereinto.