JPH01154190U - - Google Patents

Description

[Brief explanation of the drawing]

All figures show examples of this invention.
Fig. 1 is an exploded view of the flat case, Fig. 2 is a plan view halfway through folding, Fig. 3 is a perspective view of the same, Fig. 4 is a perspective view of the flat case housing a disc-shaped recording medium inner shell, and Fig. 5 The figure is an enlarged cross-sectional view taken along the line A-A, with some parts omitted except for the internal shell of the disc-shaped recording medium in Fig. 4, and Fig. 6.
The figure is an enlarged cross-sectional view of another example, and Figure 7 is B-B.
It is a line enlarged sectional view. 1...Thermoplastic sheet, 2...Fold line, 3...
...Multiple folded adhesive margin, 4...Opposed folded adhesive edge,
5...Opening portion, 6...Disc-shaped recording medium interior shell.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a case containing a disc-shaped recording medium inner shell, a fold line 2 provided approximately at the center of a rigid thermoplastic sheet 1 with a thickness of approximately 0.1 mm or more, and this fold line. Multiple folded adhesive margins 3, 3 formed by folding opposite sides of the sheet 1 across the line 2 inward multiple times, and these multiple folded adhesive margins 3, 3 facing each other at once by ultrasonic pressure. Opposite folded adhesive edges 4,
4 and an opening 5 formed on a side opposite to the fold line 2, respectively. 2. Claim 1, wherein the facing interval of the sheets 1 is slightly smaller than the wall thickness of the disc-shaped recording medium interior shell 6.
A flat case for storing the internal shell of the disc-shaped recording medium described. 3. The flat case for storing a disc-shaped recording medium internal shell according to claim 1 or 2, wherein the fold lines 2 are arranged in two pairs in close proximity to each other.