JP2001055287A - Paper cd case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a paper CD case easily disposable by bending bendable parts so that a back sheet can be laid under embossed indents at a paper mount. SOLUTION: A back sheet 11, a paper mount 12, a surface cover 13 and a surface cover reinforcing sheet 14 are formed out of a single sheet of cardboard, and the cardboard is made to function as a paper CD case 10 by bending a bendable part 15 outwardly and bendable parts 16 and 17 inwardly. An embossed indent 20 covering an area approximately in a circular shape opposite to a recording face of a CD medium and indents 21-24 having slightly deep embossments at four corners are formed at the paper mount 12 of the paper CD case 10 so that the indents are formed, caving toward the back side. The indents 21-24 at the four corners are provided to fix the back sheet 11 bent along the bendable part 15 stably under the paper mount 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention belongs to the technical field of a CD case using paper as a material.

[0002]

Conventionally, a CD medium (in this specification, a music CD having an information recording surface,
Photo CD, Video CD, CD-ROM, CD-R, P
D, DVD-ROM, DVD-RAM, DVD-VID
Recording media such as EO are collectively called CD media. )
Was carried in a plastic CD case, but the plastic CD case had a major problem in terms of disposal. In the case of mailing CD media, simple packing materials with folded cardboard were used.
In this method, the CD medium is sandwiched between cardboards while bare. If the CD medium moves during transportation, the recording surface may be damaged by friction with the paper. The object of the present invention is to
To make a paper CD case that is convenient for transportation.

[0003]

Means for solving the above problems are, as described in the claims, an embossed concave portion facing the recording surface of the CD medium and an inner ring portion of the embossed concave portion, A paper CD case having a backing sheet provided with a suction sheet having a predetermined thickness in a region facing the non-recording region on the inner ring of the recording surface, and a convex portion for supporting the outer edge of the CD medium at a position higher than the height of the embossed concave portion And a backing paper having the same size as the backing paper, with the folded portion interposed therebetween, and folding the backing paper so as to lay the backing paper under the embossed recess in the backing paper. Paper C formed by bending the part
This is the D case.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention can be made by a very simple manufacturing process, such as cutting paper as a material into a predetermined shape and embossing the paper. FIG.
FIG. 2 is a development view of an example of the paper CD case according to the present invention.
In the paper CD case 10 of FIG.
2, the front cover 13 and the front cover reinforcing paper 14 are made of one sheet of thick paper, and function as a CD case by bending the bent portion 15 into a mountain and the bent portions 16 and 17 into a valley.
The embossed concave portion 20 occupying an approximately circular area facing the recording surface of the CD media and the recesses 21 to 24 at the four corners of the mount 12 are embossed slightly deeper than usual. A concave portion is formed so as to be depressed from the near side to the back side. Four corner depressions 21-2
4 is the backing paper 11 bent along the bent portion 15
Is provided under the mount 12 in a stable manner. The CD lifters 25 to 28 are convex portions provided on the outer peripheral portion of the embossed concave portion 20 and function to support the outer edge of the stored CD media so that the recording surface of the CD media does not touch the mount 12. . CD lifters 25-28 of this example
Is formed by embossing the mount 12, but the CD lifter can also be formed by attaching a thick member. In order to deep-draw the embossing formed on the backing paper 12, if a long fiber pulp is used as the material, deep drawing of about 2 millimeters is possible.

A ring-shaped suction sheet 18 is attached to the inner ring portion of the embossed recess 20. If the non-recording area in the inner ring portion on the recording surface side of the CD medium is lightly pressed against the suction sheet 18, the CD medium is suction-fixed to the CD case. On the other hand, when removing the CD medium, the CD medium can be easily separated from the suction sheet 18 by pulling up the outer peripheral end of the CD medium. The size of the paper CD case shown is 120 x 6
The size is 00 mm, the folded size is 120 × 150 mm, and it has a standard postal size, making it ideal for simple mailing such as direct mail.
Further, in order to make the paper quality less affected by moisture, the paper is made to have a strong size by containing a resin, and the surface thereof is coated with a coating agent to enable multicolor printing.

FIG. 2 shows an example of the structure of the suction sheet. FIG.
Is composed of three layers of an adhesive layer 31, an adsorption foam layer 32, and a thin film protection sheet layer 33. When the adsorption sheet 30 is attached to the mount by the adhesive layer 31, and the CD media is stored. Peels the thin film protective sheet layer 33 and causes the adsorption foam layer 32 to adsorb the CD medium. The suction foam layer 32 fixes the CD medium not by the adhesive force of the adhesive but by the suction force of a suction cup, and can be re-applied approximately any number of times. That is, the paper CD case according to the present invention is not disposable but can be used repeatedly. The adsorption foam layer 32 can be made of a material such as polyurethane, the thickness of which is, for example, 200 to 400 micrometers, and the adhesion property thereof is a smooth surface such as a glass plate, an acrylic plate, a polypropylene plate, and an acrylic painted plate. And 10
About 100 g / 50 mm. By using such a suction sheet, the paper C according to the present invention can be used.
The D case allows the CD medium to be attached and detached semipermanently.

FIGS. 3 to 6 are explanatory side sectional views of the mounts 51 to 54 provided with the suction sheets 41 to 44. FIG. 3 to 6, the thickness and the like are emphasized for easy understanding, and the scale is greatly different from the exact scale. FIG. 3 shows that the suction sheet 4
FIG. 4 shows an embodiment in which a bellows 55 is further provided at the center of the circular embossed concave portion, and the CD media 61 and 62 are mounted on the backing paper by the thickness of the suction sheets 41 and 42, respectively. It is stored in a floating state. On the other hand, FIG. 5 shows an embodiment in which the embossed concave portion of the backing sheet 53 has a donut shape and the suction sheet 43 is provided on the inner ring convex portion.
Is an embodiment in which a navel 56 is further provided at the center of the inner ring convex portion, and the CD media 63 and 64 are respectively separated from the mount by the amount of the height of the inner ring convex portion plus the thickness of the suction sheets 43 and 44. It is stored in a floating state. CD lifters 71-78
Are projections formed by embossing the mounts 51 to 54, and support the outer edges of the CD media 61 to 64 so as to fix them. As described above, according to the present invention, the bottom surface of the paper CD case is devised so that the recording surface of the CD media does not touch the recording surface of the CD media by the suction sheet and the embossing process. Become.

[0008]

As described above, according to the present invention,
Since paper is used as the material for the CD case, disposal is extremely easy. In addition, the number of parts can be extremely reduced to simplify the structure, and it can be made very easily by a simple manufacturing process such as embossing. Moreover, it is possible to minimize the risk of damaging the recording surface of the CD medium.

[Brief description of the drawings]

FIG. 1 is a development view of an example of a paper CD case according to the present invention.

FIG. 2 is a diagram showing a structural example of a suction sheet.

FIG. 3 is an explanatory side sectional view of a mount provided with a suction sheet.

FIG. 4 is an explanatory side sectional view of a mount provided with a suction sheet.

FIG. 5 is an explanatory side sectional view of a mount provided with a suction sheet.

FIG. 6 is an explanatory side sectional view of a mount provided with a suction sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Paper CD case 11 Backing paper 12, 51-54 Backing paper 13 Front cover 14 Front cover reinforcing paper 15-17 Bending part 18 Adsorption sheet 20 Emboss concave part 21-24 Four corner depression 25-28, 71-78 CD lifter 30, 41 44 Adsorption sheet 31 Adhesive layer 32 Adsorption foam layer 33 Thin film protection sheet layer 55, 56 Navel 61-64 CD media

Claims (3)

[Claims] An embossed concave portion facing a recording surface of a CD medium, and an adsorbing sheet having a predetermined thickness in an inner ring portion of the embossed concave portion, which is opposed to a non-recording region of the inner ring of the recording surface of the CD medium. Paper CD case having a backing sheet provided with. 2. The paper CD case according to claim 1, wherein a convex portion for supporting an outer edge of the CD medium is provided at a position higher than a height of the embossed concave portion. 3. A backing sheet comprising: a backing sheet having a size equal to that of the backing sheet with a folding section interposed therebetween; and bending the folding section so that the backing sheet is laid under an embossed recess in the backing sheet. 3. The paper C according to claim 1, which is processed.
D case.