JPH0715521U - Case bottom structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a bottom structure of a case in which the lower surface opening of the case is sealed without using an adhesive or heat welding. [Structure] A bottom plate 6 that closes the lower surface opening of the rectangular tube is connected to the lower edge of the side plate 2 of the rectangular tube A formed by the four side plates 1, 2, 3 and 4, and the tip of the bottom plate in the protruding direction is formed. A resistance insertion piece 7 to be inserted into the rectangular cylinder is provided at the edge, and the reversal of the opening direction of the bottom plate is prevented by the resistance insertion piece.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bottom structure of a case that accommodates a laser disk (LD), for example.

[0002]

[Prior art]

 In the case of a conventional laser disk, a square tubular body is formed by four side plates that face each other in the front and rear and left and right, and the lower surface opening of the square tubular body has an inner bottom plate and an outer bottom plate connected to the lower edge of one of the opposite side plates. Bend each other inward and overlap, and close the overlapping surfaces by attaching them.

[0003]

[Problems to be solved by the device]

 According to the above case, first, the inner bottom plate is bent inward, then the outer bottom is bent inward, the outer bottom plate is superposed on the inner bottom plate, and the adhesive or high frequency applied to the overlapping surface is used. Since it is fixed by heat welding, the sealing work is troublesome and the cost increases.

Further, since it is stored as assembled, or shipped, there is a problem in that it is bulky.

Therefore, an object of the present invention is to seal the lower surface opening of the rectangular cylindrical body that constitutes the case without heat welding such as an adhesive or a high frequency.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention relates to a square tube body formed by four side plates, a single side wall of the square tube connected flexibly from the lower edge of the side plate, and a bottom opening of the square tube body. A bottom plate provided so as to close the bottom plate, and a resistance provided so as to flexibly connect from the edge of the bottom plate in the protruding direction so as to be in contact with the inner surface of the rectangular tubular body, and to prevent open reversal of the bottom plate. The bottom structure of the case consisting of the insert piece is adopted.

[0007]

[Action]

 While inserting the insertion piece into the rectangular tube, the bottom plate closes the opening of the rectangular tube.

Further, when a force in the opening direction acts on the bottom plate, the resistance of the resistance insertion piece in contact with the inner surface of the rectangular tubular body prevents the bottom plate from reversing in the opening direction.

[0009]

【Example】

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

As shown in FIGS. 1 and 2, A is a rectangular prismatic body formed by four side plates 1, 2, 3, and 4.

In the case shown in the drawing, the fixing pieces 5 connected to the side edges of the side plate 1 are overlapped on the surface of the side plate 4, and when thick paper is used, when applying a synthetic resin plate through an adhesive, etc. Although the rectangular cylinder A is formed by fixing with an adhesive or appropriate heat welding, the rectangular cylinder A may be formed by a method other than the above.

A bottom plate 6 that closes the lower surface opening of the rectangular tubular body A is provided at the lower edge of the rectangular tubular body A.

The bottom plate 6 is flexibly connected to the lower edge of the side plate 2 in the illustrated case.

Further, at the tip of the bottom plate 6 in the protruding direction, the resistance insertion piece is inserted so as to be bent and connected so as to be in contact with the inner surface of the rectangular tubular body A, and prevents the bottom plate 6 from being reversed in the opening direction. 7 is provided.

As shown in FIG. 2, the resistance plug-in piece 7 has a length about twice the protruding length of the bottom plate 6 so that the entire surface of the resistance plug-in piece 7 overlaps the inner surface of the side plate 4. In addition to the above, as shown in FIG. 3, the resistance insertion piece 7 longer than the protruding length of the bottom plate 6 is bent in a V shape along the middle broken line 8 and the portion of the resistance insertion piece 7 at the broken line 8 is formed on the side plate 2. The inner surface of the side plate 4 may be brought into contact with the leading edge of the resistance insertion piece 7 in the protruding direction.

With the above structure, even if a force in the opening direction is applied to the bottom plate 6, the reversal of the opening direction of the bottom plate 6 is prevented by the resistance insertion piece 7.

[0017]

【effect】

 Since the bottom structure of the case according to the present invention is configured as described above, even if a force in the opening direction is applied to the bottom plate, the resistance insertion piece prevents the bottom plate from reversing in the opening direction.

For this reason, troublesome sealing work such as an adhesive or heat welding becomes unnecessary.

[Brief description of drawings]

FIG. 1 is a perspective view of a case according to the present invention.

[FIG. 2] A vertical side view of the same as above when sealing.

FIG. 3 is a vertical sectional side view of another embodiment.

[Explanation of symbols]

 A Square tube 1, 2, 3, 4 Side plate 5 Fixing piece 6 Bottom plate 7 Resistance insertion piece

Claims (1)

[Scope of utility model registration request] 1. A rectangular tubular body formed by four side plates,
One of the side plates of the rectangular cylinder is flexibly connected from the lower edge of the side plate, and a bottom plate is provided so as to close the lower surface opening of the rectangular cylinder, and is flexibly connected from the edge of the bottom plate in the protruding direction. A bottom structure of a case comprising a resistance insertion piece which is inserted so as to be in contact with an inner surface of a rectangular tubular body and which is provided so as to prevent the open reversal of the bottom plate.