JPH029564Y2 - - 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) Generally, in the assembly process of audio products, etc., when a sub-panel is fitted to a frame such as a chassis and fixed with screws, the fitted state of both is temporarily fixed. There is no optimal temporary fixing structure, and for example, when screwing with an automatic screw fixing device, there are drawbacks such as misalignment of screw holes and improper fixation.

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) The temporary fixing structure of plate-like members of the present invention is such that when attaching a sub-panel to a frame, one plate-like member and the other plate-like member each having a corner portion are overlapped at the corner portion. It has a structure for temporarily fixing the plate-shaped member, and includes engagement protrusions formed on both sides of one plate-shaped member, and engagement protrusions formed on both sides of the other plate-shaped member. a notch formed from the upper edge with a width that allows for a tight fit;
an insertion tongue protruding from the lower edge of the corner of one of the plate-shaped members; a notch formed at the lower edge of the corner of the other plate-shaped member so that the insertion tongue is inserted; , and a folding piece formed by bending the lower edge of the other plate-shaped member to support the lower edge of the one plate-shaped member.

(Embodiment) An embodiment of the present invention will be described based on FIGS. 2 to 4. 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 denotes the other plate member having a corner portion 4 to be attached to the one plate portion 1, and a sub-panel fitted to the frame is shown, and the corner portion 4 corresponding to the corner portion 2 is shown. This is attached to the outer surface of the corner portion 2 by overlapping it.

Engagement protrusions 5 and 5' are respectively formed by punching on both side surfaces 6 and 7 of the one plate-like member 1, and incisions are made into both side surfaces 9 and 10 of the other plate-like member 3 from the upper edge. As a result, notches 8, 8' are formed with a width that allows the engaging protrusions 5, 5' to fit tightly together. Further, a tongue piece 15 for insertion is projected from the lower end edge of the corner portion 2 of one of the plate-like members 1, and the tongue piece 15 for insertion is inserted into the other plate-like member 1.
A notch 16 is formed at the lower edge of the corner portion 4, and a folding piece 17 is bent at the lower edge of the side surface 10 of the other plate-shaped member 3 in order to support the lower edge of the one plate-shaped member 1. It has been formed.

In the figure, 11 is a notch hole formed on the left side of the engaging protrusion 5', and 12 is an engaging tongue piece provided adjacent to the left side of the notch 8', and is located on the inner side. The lower edge 11 of the notch hole 11 is bent slightly to provide a leaf spring effect.
By engaging with a, one of the plate-like members 1 is prevented from slipping out upward.

FIG. 3 shows another embodiment for preventing one of the plate members 1 from slipping out upwardly, in which an engaging dowel 13 is provided on the right side of the engaging protrusion 5' and the engaging dowel 13 is provided on the right side of the engaging protrusion 5'. An engagement hole 14 is provided on the right side of the notch 8' to correspond to the dowel 13.

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

The corner part 2 of one plate-like member 1 is aligned with the inner surface of the corner part 4 of the other plate-like member 3 so that the engaging projections 5, 5' are located on the upper edges of the notches 8, 8'. In this state, when one of the plate members 1 is slid downwardly, the engagement protrusions 5, 5' will fit tightly into the respective notches 8, 8', and there will be no play in the left-right, front-back, and front-back directions. Temporary fixing is performed properly without causing any damage. At this time, the insertion tongue piece 15 at the lower end of the corner part 2 is inserted into the notch 16 at the lower end of the corner part 4, and the lower edge of one plate member 1 is inserted into the lower end of the other plate member 3. As a result, one of the plate-shaped members 1 is positioned downward, and wobbling is reliably prevented. Further, as shown in FIG. 4, the engagement tongue piece 12 is attached to the lower end edge of the notch hole 11 due to its leaf spring effect.
1a, and upward wobbling is also prevented.

The above-mentioned upward rattling may be prevented by fitting the engaging dowel 13 into the engaging hole 14 as in the configuration example shown in FIG.

By configuring as described above, one plate-like member 1 and the other plate-like member 3 can be connected only in the temporarily fastened state.
This prevents positional deviation from occurring during subsequent work such as screw fixing.

(Effect of the invention) According to the temporary fixing structure of the plate-like member according to the invention,
When one plate-like member and the other plate-like member, each having a corner part, are overlapped at the corner part and temporarily fastened together, such as when attaching a sub-panel to a frame, both sides of one plate-like member are Both plate-like members can be reliably engaged and held simply by tightly fitting the engaging protrusions formed in each into the notches formed on both sides of the other plate-like member,
There is no need for temporary screws or the like as in the past, and the number of parts such as screws can be reduced.

In particular, the engagement protrusion fits tightly into the notch on the upper edge side of both plate-like members, and the lower edge side is held by the insertion engagement between the insertion tongue and the notch, and one of the plates is held by the folding piece. Since the plate-shaped member is positioned downward, there is no positional shift even when a robot is used to perform installation work such as screw fixing in a subsequent process, so that accurate assembly can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional structure for engaging upper and lower cases, Figs. 3 is a perspective view showing a state before temporary fixing of another embodiment. FIG. 4 is a perspective view showing a state of temporary fixing in the embodiment of FIG. 2.
The figure is a sectional view taken along the line A--A in FIG. 4. 1... One plate member, 2... Corner part, 3
...The other plate member, 4...Corner part, 5,
5'...Engagement protrusion, 8, 8'...Notch, 15...
... tongue piece for insertion, 16 ... notch, 17 ... folding piece.

Claims (1)

[Claim for Utility Model Registration] When attaching a sub-panel to a frame, one plate-like member and the other plate-like member, each having a corner part, are overlapped at the corner part and temporarily fixed. The structure includes engagement protrusions formed on both sides of one plate-like member, and an upper edge with a width that allows the engagement protrusions to be tightly fitted on both sides of the other plate-like member. a notch formed by a cut-out, an insertion tongue protruding from the lower edge of the corner of one of the plate-like members, and a corner portion of the other plate-like member such that the insertion tongue is inserted thereinto. A plate comprising a notch formed in the lower edge and a folding piece bent and formed in the lower edge of the other plate-shaped member to support the lower edge of the one plate-shaped member. Temporary fixing structure for shaped members.