JPH08207979A - Magnetic disc container - Google Patents

Abstract

PURPOSE: To obtain a magnetic disc container of a thin construction as a whole, facilitate taking in and out of a magnetic disc, and protect the magnetic disc against impacts from outside. CONSTITUTION: The main part of a magnetic disc container consists of a mount 3 with a recessed part 2 to contain a magnetic disc 1 and a cover sheet 4 to be laid on the mount. Adhesive 5 is applied on the rear side of a cover film 4a of the cover sheet 4, that faces the mount 3, to form a peelable adhesive layer, and a protective sheet 6 is glued at a position of the cover film 4a facing the recessed part 2. Thereby, the cover sheet 4 can be repeatedly adhered out and removed from the mount 3, so that the magnetic disc 1 cart be taken in and out. In addition, the magnetic disc 1 contained in the recessed part 2 can be protected by covering it with the protective sheet 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk housing, and more particularly to housing and carrying a disk of a magnetic recording medium such as a compact disk (CD) or a floppy disk (FD). The present invention relates to a magnetic disk storage body used for storage.

[0002]

2. Description of the Related Art In recent information-oriented society, multimedia reforms are in progress, and among them, magnetic disks, which are various information media such as CDs and FDs, on which characters, images or sounds are recorded, are widely used. ing. For this reason, it is important to transport and store a single packaging mount containing these magnetic disks or a magazine or the like in which the packaging mount is bound in a booklet.

Conventionally, as this kind of magnetic disk housing, there is known one having a mount having a recess for housing the magnetic disk and a cover film laminated on the mount (Actual Publication No. 3-78794). etc). In this conventional container, an adhesive is generally applied to the surface of the mount and the cover film can be repeatedly peeled and adhered.

[0004]

However, in the conventional magnetic disk storage body of this kind, since the adhesive is applied to the surface of the mount, the adhesive surface is not touched when the magnetic disk is taken out or stored. There was a problem that they would come into contact with each other and take them out, which would hinder the storage. In addition, since the pressure sensitive adhesive is exposed upward, dust easily adheres to the pressure sensitive adhesive surface, which reduces the adhesiveness between the mount and the cover film, resulting in insufficient storage of the magnetic disk. Furthermore, when the cover film is peeled off, the adhesive surface directly comes into contact with the eyes, which is not desirable in appearance.

Further, since the conventional housing of this type has a structure in which the magnetic disk housed in the recess is covered only with a thin cover film, the magnetic disk may be damaged in the recess by vibration during transportation or some shock. There was also a risk of rattling, damage, or damage. In order to solve this problem, it is possible to cover the magnetic disk with a hard plastic cover member instead of the cover film, but since this structure is thick as a whole, it takes a lot of space, There is a problem that it is inconvenient to take out and store the magnetic disk and the cost is increased.

The present invention has been made in view of the above circumstances, and has a thin structure as a whole so that a magnetic disk can be easily housed and removed, and the magnetic disk can be protected from external impacts. It is the one that seeks to provide the body.

[0007]

In order to achieve the above object, the magnetic disk housing of the present invention comprises a mount having a recess for housing the magnetic disk and a cover sheet superposed on the mount. Assuming a disk storage body, the cover sheet has a releasable adhesive layer formed on the side surface of the mount of the film base material, and has a protective sheet attached to a portion facing the recess of the film base material. It is characterized in that (claim 1).

In the present invention, the mount may be made of any material as long as it has a recess for accommodating a magnetic disk, and the mount can be formed of, for example, paper or a foam plastic member.

The total thickness of the cover sheet and the protective sheet may be arbitrary, but is preferably 90 μm or more, more preferably 90 μm to 250 μm (claim 2). The cover sheet and the protective sheet may be opaque as long as they have the above-mentioned thickness, but preferably a transparent member or a semi-transparent member. In this case, a plastic film such as polyester, polypropylene, polyethylene or polystyrene can be used as the film base material of the cover sheet.

Further, it is preferable that the protective sheet is formed of a film member which is softer than the film base material of the cover sheet, since the protection by the cushioning property becomes possible (claim 3). In this case, as the protective sheet, for example, polyester, polypropylene, polyethylene, polystyrene, or other flexible polyurethane or cellophane can be used.

Further, by providing a non-adhesive portion at the edge of the cover sheet, the cover sheet can be easily opened from the mount (claim 4).

Further, it is preferable that the cover sheet and a part of the cover sheet are adhered and fixed, or that the mount and the cover sheet are partly fixed by a fixing member, in order to prevent illegal opening of the cover sheet and the like ( Claims 5 and 6).

In addition, it is preferable that at least one of the protective sheet and the recess of the mount is subjected to a conductive treatment for electromagnetic wave shielding and static electricity prevention (claim 7). In this case, the conductive treatment layer can be formed by vapor deposition of a metal such as copper or aluminum or metallic coating.

[0014]

According to the magnetic disk housing of the present invention constructed as described above, a removable adhesive layer is formed on the side of the backing of the film base material of the cover sheet, and it opposes the recess provided in the backing. By attaching the protective sheet to the site, adhesion and peeling can be repeated with respect to the mount, the cover sheet can be easily opened, and the magnetic disk can be stored and removed easily. Further, since the exposed side surface of the magnetic disk can be covered with the protective sheet, the housed magnetic disk can be protected from external shocks and the magnetic disk rattles due to vibration during transportation. Can be suppressed (Claim 1). In this case, by setting the total thickness of the cover sheet and the protective sheet to 90 μm to 250 μm, it is possible to further protect the magnetic disk against impact from the outside such as a falling object (claim 2). Also,
By forming the protective sheet with a film member that is more flexible than the film base material of the cover sheet, buffer protection of the magnetic disk is also possible (claim 3).

Further, by providing the non-adhesive portion at the edge of the cover sheet, the cover sheet can be opened from the mount sheet starting from the non-adhesive portion (claim 4).

Further, the cover sheet can be prevented from being completely separated from the mount sheet by fixing the mount sheet and the cover sheet by adhesion or by fixing the mount sheet and the cover sheet by a fixing member. It is possible (claims 5 and 6). Therefore, it is possible to prevent unauthorized opening of the cover sheet.

Further, at least one of the concave portion of the protective sheet or the mount is subjected to a conductive treatment for shielding electromagnetic waves and preventing static electricity, so that the magnetic disk can shield the influence of electromagnetic waves from the outside, and at the same time, it is magnetic. It is possible to prevent static electricity from being generated on the disk (claim 7).

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

First Embodiment FIG. 1 is a plan view of a first embodiment of the magnetic disk housing of the present invention, FIG. 2 is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 3 is the housing of FIG. It is a disassembled perspective view of a body.

The magnetic disk housing of the present invention comprises a rectangular mount 3 having a recess 2 for housing the magnetic disk 1,
It is mainly composed of a transparent cover sheet 4 which is superposed on the surface of the mount 3. In this case, the cover sheet 4 has a removable base adhesive layer 5 formed by applying the removable adhesive pressure-sensitive adhesive 5 on the side of the mount of the film substrate 4a (hereinafter referred to as the cover film). A protective sheet 6 having a size that covers the recess 2 is attached to a portion of the cover sheet 4 facing the recess 2.

The mount 3 and one side of the cover sheet 4 (on the upper end side in FIG. 1) are adhered to each other by adhesion or fusion. The non-adhesive part 8 is provided on the edge of the cover sheet 4 on the side opposite to the adhesive part 7 (the lower left part of FIG. 1).
Is provided so that the cover sheet 4 can be easily peeled (opened) from the mount 3.

In the container of the present invention constructed as described above, the mount 3 is made of paper such as corrugated cardboard or a foam plastic member. in this case,
The mount 3 has a first mount half 3a having a hole 2a forming a recess 2 in the center thereof, and a second mount 3a attached to the first mount half 3a with an adhesive (not shown). Half 3
and b. In this case, the first mount half 3a
The second mount half body 3b and the second mount half body 3b may be integrally bent and bonded, or may be bonded separately. A semi-circular finger insertion portion 9 is provided at the opposing portion of the recess 2.

The cover film 4a is formed of a transparent plastic film such as polyester, polypropylene, polyethylene or polystyrene. The protective sheet 6 attached to the cover film 4a is formed of a film member similar to the cover film, for example, polyester, polypropylene, polyethylene, polystyrene, or a transparent plastic film such as softer polyurethane or cellophane. . As the removable adhesive 5, for example, an acrylic or rubber adhesive is used.

On the other hand, a conductive treatment layer 10 is applied to the bottom surface 21 of the recess 2 of the mount 3 and the surface of the protective sheet 6. The conductive treatment layer 10 is formed by vapor deposition of a metal such as copper or aluminum or metallic coating.
Thus, by forming the conductive treatment layer 10 on the bottom surface 21 of the recess 2 and the surface of the protective sheet 6, the magnetic disk 1 housed in the recess 2 can be protected from electromagnetic interference due to electromagnetic waves from the outside. Along with magnetic disk 1
It is possible to prevent static electricity from being generated. Although the conductive treatment layer 10 is formed on both the bottom surface 21 of the recess 2 and the surface of the protective sheet 6 here, it is also effective to apply the conductive treatment layer 10 to at least one of the recess 2 and the protective sheet 6. .

With the above-mentioned structure, the whole can be formed into a thin mount, so that it can be stored as a single storage unit in a bookshelf or the like, and it can be used as a magazine by binding it into a booklet. You can Also, the magnetic recording disk 1 housed in the recess 2 can be taken out by peeling (opening) the cover sheet 4 from the non-adhesive portion 8 as a starting point, and the used magnetic disk 1 can be covered again. 4 can be opened and stored in the concave portion 2, and the magnetic disk 1 can be repeatedly taken out and stored. At this time, since the removable adhesive 5 is applied to the cover film 4a, the adhesive 5 should be placed in the hand of the opening person.
It is possible to easily remove and store the magnetic disk 1 without touching. Further, since the protective sheet 6 covers the exposed surface of the magnetic disk 1 during storage, it is possible to protect the magnetic disk 1 from external shocks and to protect the magnetic disk 1 from vibration during transportation. It is possible to suppress rattling and prevent damage or breakage of the magnetic disk 1.

Second Embodiment FIG. 4 is a schematic plan view of a second embodiment of the magnetic disk housing of the present invention and a sectional view taken along the line BB. In the second embodiment, in order to prevent unauthorized opening of the backing sheet 3 and the cover sheet 4, instead of adhering with the adhesive of the first embodiment, a fixing member 11 fixes a portion of the backing sheet 3 and the cover sheet 4. This is the case. That is, for example, the mount 3 and the cover sheet 4 are fixed to each other by irremovably surrounding one end of the mount 3 and the cover sheet 4 with a strip-shaped fixing member 11 formed of a paper band. The fixing member 11 does not necessarily have to be a paper strip, and may be a strip-shaped body such as an adhesive tape.

With this configuration, the mount 3
The cover sheet 4 and the cover sheet 4 can be easily fixed, and the cover sheet 4 can be prevented from being accidentally detached from the mount 3. Since the other parts of the second embodiment are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Third Embodiment FIG. 5 is a schematic plan view of the third embodiment of the magnetic disk housing according to the present invention. The third embodiment is a case where a plurality of magnetic disks can be housed simultaneously. That is, the mount 3 is provided with a first recess 2A for storing, for example, a CD and a second recess 2B for storing, for example, an FD, and the first protective sheet 6A is provided at a portion of the cover sheet 4 facing the recesses 2A, 2B. And the case where the second protective sheet 6B is attached. In this case, the first protective sheet 6A and the second protective sheet 6B may be formed integrally or separately. Further, although the case where two magnetic disks 1A and 1B can be accommodated simultaneously has been described here, it is of course possible to accommodate three or more magnetic disks simultaneously.

With this structure, a plurality of magnetic disks 1A and 1B can be accommodated at the same time, and the number of members can be reduced and the space can be effectively used.

Since the other parts of the third embodiment are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Next, a description will be given of an embodiment in which the magnetic disk housing of the first embodiment is concretely constructed.
A diameter of 278 mm, a width of 190 mm, and a thickness of 1 mm of the same size of paperboard (mounting paper halves 3a and 3b) at one center
A 23 mm hole 2a (recess 2) is opened, semicircular finger insertion portions 9 are provided at two opposing positions of this hole 2a, and both paperboards are attached with an adhesive to form a mount 3. Separately, thickness 50
A removable pressure-sensitive adhesive sheet (cover sheet 4) prepared by coating a particulate acrylic pressure-sensitive adhesive (removable pressure-sensitive adhesive 5) cured with a 20 μm emulsion liquid on a transparent polypropylene film of μm was prepared. Thickness 50 in the center
A cover sheet 4 to which a polypropylene film (protective sheet 6) having the same shape as the concave portion 2 of the mount 3 in μm is attached
To prepare. The cover sheet 4 was attached to the mount 3 so that the protective sheet 6 was aligned with the recess 2, and the portion protruding from the mount 3 was cut to prepare a magnetic disk storage body.

Recessed portion 2 of the container formed as described above
The cut test piece made of polyester of 1000 μm was stored in place of the magnetic disk 1 and dropped from a height of 8 cm with the plus tip of a 40 g driver facing downward. No dent was observed on the test piece. It was In addition, when the same experiment was performed in a state where the test piece was covered with only the cover sheet 4 without attaching the protective sheet 6, a dent was observed in the test piece.

When the same experiment was conducted on the cover sheet 4 and the protective sheet 6 having different thicknesses (70 μm to 280 μm) or different materials, the results shown in Table 1 were obtained. Was given.

[0034]

[Table 1]

As a result of the above experiment, it was found that the total thickness of the cover sheet 4 and the protective sheet 6 is preferably 90 μm or more.

Further, with respect to the samples of the experiment shown in Table 1 above, an experiment was conducted on the degree of peeling of the protective sheet 6 when the cover sheet 4 was peeled in the 180 ° direction, and as a result, the results shown in Table 2 were obtained.

[0037]

[Table 2]

As a result of the above Experiment 2, when the protective sheet 6 is made of the hard polyethylene film (C) or the polyurethane film (D) with respect to the polyester cover sheet 4, when the total thickness is 220 μm and 230 μm, The protective sheet 6 was slightly raised, but when the polypropylene or polyester protective sheet 6 was used for the polypropylene cover sheet 4, the total thickness was 250 μm.
No peeling of the protective sheet 6 was observed even in the case of m.

As a result of carrying out the above Experiment 2, it was found that the cover sheet with the pressure-sensitive adhesive had a limit of 90 μm for both A to D when it was peeled from the mount and released from the hand. When the protective sheet 6 was made of the hard polyethylene film (C), a phenomenon in which the protective sheet 6 was completely peeled off when the total thickness was 260 μm was observed. It is presumed that when the cover sheet 4 becomes thick, it becomes hard, and the cover sheet 4 does not follow the curve and is peeled off. Therefore, from the above experiment, the cover sheet 4 and the protective sheet 6 are
It is preferable that the total thickness of and is 90 μm to 250 μm.

The cover sheet 4 and the protective sheet 6 may be made of other materials such as polyethylene film,
Similar results were obtained when the same experiment was performed using a film such as a polystyrene film.

[0041]

As described above, according to the magnetic disk housing of the present invention, which is configured as described above, the following effects can be obtained.

1) A removable pressure-sensitive adhesive layer is formed on the side of the backing of the film base material of the cover sheet, and a protective sheet is attached to a portion facing the concave portion provided on the backing, whereby the cover sheet is attached to the backing It enables repeated adhesion and peeling, and can easily open the cover sheet,
It is possible to easily store and remove the magnetic disk. Also, since the whole can be made thin, it can be easily stored as a single storage unit in a narrow space such as a bookshelf, and it can be used for multiple purposes such as binding it into a booklet and using it as part of a magazine. You can

2) Since the exposed surface of the magnetic disk can be covered with the protective sheet, the magnetic disk in the housed state can be protected from external impacts and the like, and at the same time the magnetic disk can be protected from vibration during transportation. Rattling can be suppressed.

3) At least one of the protective sheet and the recess of the mount is subjected to a conductive treatment for electromagnetic wave blocking and static electricity prevention, so that the magnetic disk can block the influence of external electromagnetic waves and the magnetic disk. It is possible to prevent static electricity from being generated.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a first embodiment of a magnetic disk housing according to the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is an exploded perspective view of the magnetic disk housing of FIG.

FIG. 4 is a schematic plan view (a) showing a second embodiment of the magnetic disk housing of the present invention and a sectional view (b) taken along line BB thereof.

FIG. 5 is a schematic plan view showing a third embodiment of the magnetic disk housing of the present invention.

[Explanation of symbols]

 1, 1A, 1B Magnetic disk 2, 2A, 2B Recess 3 Mount 4 Cover sheet 4a Cover film (Film base material) 5 Removable adhesive 6 Protective sheet 7 Adhesive 8 Non-adhesive 10 Conductive treatment layer 11 Fixing member

Claims (7)

[Claims] 1. A magnetic disk storage body comprising a mount having a recess for storing a magnetic disk, and a cover sheet overlaid on the mount, wherein the cover sheet is re-peeled on the side of the mount of the film base material. A magnetic disk storage body, which is characterized in that a protective pressure-sensitive adhesive layer is formed, and a protective sheet is attached to a portion of the film base material facing the above-mentioned recess. 2. The magnetic disk container according to claim 1, wherein the total thickness of the cover sheet and the protective sheet is 90 μm or more, preferably 90 μm to 250 μm. 3. The magnetic disk container according to claim 1, wherein the protective sheet is formed of a film member which is softer than the film base material of the cover sheet. 4. The magnetic disk container according to claim 1, wherein a non-adhesive portion is provided on an edge portion of the cover sheet. 5. The magnetic disk storage body according to claim 1, wherein a mount and a part of the cover sheet are bonded and fixed. 6. The magnetic disk container according to claim 1, wherein the mount and a part of the cover sheet are fixed by a fixing member. 7. The magnetic disk container according to claim 1, wherein at least one of the protective sheet and the recess of the mount is subjected to a conductive treatment for shielding electromagnetic waves and preventing static electricity.