JP2000025870A - Case for disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case for a disk, which is made of paper, uses no plastic parts and is capable of storing a disk without detriment to a recorded face thereof. SOLUTION: This case 10 for a disk comprises an outer case 12 made of paper, having an opening portion 11 on one end side thereof, and formed into the shape of a book slipcase, and a tray 13 made of paper, which is taken into and out of the outer case 12 through this opening portion 11. The outer case 12 has a stopper piece 20 which is folded back to the inside of the opening portion 11. The tray 13 has a projected piece 55 engageable with the stopper piece 20. A folded-back front part 56 is provided on the front side of the tray 13. The tray 13 has a disk containing recess 35 formed into a circular shape, in which the disk is put. A support protrusion 40 is formed on a bottom face sheet 30 along the inner circumference of the disk containing recess 35. The support protrusion 40 is brought into contact with a non-recorded face of the disk at its circumferential edge, thereby supporting the disk in a slightly levitated state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD (compact disk), a so-called CD single, and a DVD.
The present invention relates to a paper disk case used for storing a media disk such as a (Digital Video Disk).

[0002]

2. Description of the Related Art As a case for accommodating a media disk such as a CD, for example, a plastic case in which a plastic upper case and a lower case are connected by a hinge shaft so as to be openable and closable has been generally used. In this device, a disc is stored by closing a disc in a lower case and then closing the upper case.

[0003] For example, disc cases used for music and reading materials are desirably designed to have a characteristic in order to be individualized with other products. To manufacture a plastic case of a special design, There is a problem that the cost required for a molding die is extremely high, and it is not suitable for high-mix low-volume production. Further, it is desired to print a beautiful design such as a picture on the surface of the case, but the cost required for printing the plastic case is extremely high.

For this reason, conventionally, measures such as pasting a pre-printed decorative sticker with an adhesive on the case surface and inserting a printed paper piece into the back side of the transparent case have been taken, but the cost is high. It is a cause and the appearance is not so good. Further, even if the conventional plastic case is disposed of, it is necessary to consider the environment and the like, and a new problem has been raised regarding disposal.

[0005]

From such a viewpoint, a paper disk case has been developed. One example is
It has a paper tray having a disk accommodation recess for accommodating a disk, and an openable and closable tray cover that covers the outside of the tray. This conventional product is provided with a disk-shaped convex portion called a so-called "navel" at the center of the disk accommodating concave portion in order to fix the disk at a predetermined position in the tray,
The center hole of the disc is fitted into the circular projection. This circular convex part is not made of paper, but a plastic circular part is preferred. The reason is that the convex part made of paper may cause the peripheral edge of the convex part to be turned up as the disc is repeatedly attached and detached, and the paper convex part may be easily settled and may not be able to fix the disc well. there were.

[0006] As described above, the conventional paper disc case uses a plastic part for a part thereof (the convex portion). Therefore, there is room for improvement from the viewpoint of making all the material of paper. there were.

It is also conceivable that the disc is accommodated in a paper tray having a flat bottom plate without the projections. However, damage to the recording surface due to contact between the bottom plate and the recording surface of the disc may be considered. In order to prevent this, it is necessary to provide a soft protective sheet such as a nonwoven fabric on the bottom plate. in this case,
Even if beautiful printing is performed on the bottom plate, the printed surface is hidden by the protective sheet, so that a desired design cannot be utilized.

On the other hand, a simple bag-shaped paper case such as an envelope is sometimes used as a paper disk case that does not use any plastic parts. However, this is not only lacking in luxury, but if the handling of the case is wrong, the internal disk may fall out of the case and the recording surface of the disk may be damaged. I couldn't use it.

Therefore, an object of the present invention is to provide a disk which can be constructed without using plastic parts, can reliably hold the disk so as to protect the recording surface, and can have a high-class appearance by printing or the like. An object of the present invention is to provide a paper disk case.

[0010]

According to a first aspect of the present invention, there is provided a disk case according to the present invention, wherein the outer case and the tray are made of paper.
The entire case can be made of paper.

A preferred example of the supporting projection provided on the tray is one in which a part of the bottom plate is extruded from the back side along the inner peripheral edge of the disc accommodating recess by a press. The present invention also includes that a pocket portion for storing an appendix as described in claim 3 is provided on the lower surface side of the tray.

In order to store the disk in the disk case of the present invention, the tray is pulled out from the outer case, the disk is inserted into the disk receiving recess of the tray, and then the tray is inserted into the outer case. The disc that has entered the disc accommodating recess is supported with the recording surface slightly floating by contacting the lower surface of the peripheral edge with the supporting projection, so that the recording surface of the disc can be used without using a protective sheet such as a nonwoven fabric. Will be protected.

When the tray is pulled out of the outer case to take out the disk, the tip of the projecting piece of the tray moves toward the opening of the outer case while being in contact with the inner surface of the outer case.
When the tray is pulled out to some extent, the projecting piece enters the back side of the stopper piece of the outer case, and the projecting piece and the stopper piece engage with each other, so that the tray cannot be further drawn out. Therefore, the tray is prevented from falling out of the outer case, and the disk in the disk accommodating recess is held at a predetermined position in the tray by the outer case, so that the disk is prevented from being accidentally dropped.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk case 10 according to a first embodiment of the present invention will be described below with reference to FIGS. The disk case 10 shown in FIG. 1 has a book case shape (square box shape) having an opening 11 on one end side.
And an outer case 12 made of paper, and a tray 13 made of paper which is put into and taken out of the outer case 12 through the opening 11.

As shown in FIG. 2, the thick paper 12a constituting the outer case 12 has margin pieces 15 and 16 on both side edges. Then, the glue pieces 15 and 16 are erected at substantially right angles, and the cardboard 12a is folded in two at the fold lines 17 and 18, and then the glue pieces 15 and 16 are glued to each other to form a book case. A shaped outer case 12 is formed.

On the side of the opening 11 of the outer case 12, a stopper piece 2 that is folded inside the opening 11 with a fold line 19 as a boundary
0 is provided. These fold lines 17, 18, 1
9 and the fold lines described in this embodiment are:
For example, it is formed by perforation or groove forming by pressing.

The tray 13 includes a tray body 25 shown in FIG.
And the backing sheet 26 shown in FIG. The tray body 25 includes a bottom plate 30 made of cardboard and a laminated plate 31 laminated on the bottom plate 30. The both sides of the front end of the tray body 25 are cut (cut) in an arc shape as shown by a two-dot chain line in FIG. The formation of the cut-out portion 32 exposes a part of an appendix 80 (shown in FIG. 7 and the like) such as a lyric card, which will be described later, and makes it easier to see the appendix 80 from above the tray 13.

By punching out the center of the laminated plate 31 into a substantially circular shape, a disk accommodating recess 35 for receiving the disk D (shown in FIGS. 5 and 6) is formed on the bottom plate 30. The disc accommodating recess 35 is a circular shallow recess having an open upper surface. The radius of the inner peripheral edge 35a of the disc accommodating recess 35 is the inside diameter into which the disc D just enters.

A support projection 40 is formed on the bottom plate 30. The support protrusion 40 is formed on the inner peripheral edge 3 of the disc accommodating recess 35.
It is a ridge formed by extruding a part of the bottom plate 30 from the back side by pressing along the 5a. The support convex portion 40 has an upwardly convex, smoothly curved cross-sectional shape. By bringing the peripheral portion D1 of the disk D, that is, an area not used as a recording surface, into contact with the support projection 40, the disk D is supported in a state of being slightly floated on the bottom plate 30 as shown in FIG. I am trying to.

A notch 45 is formed at the front end of the tray main body 25, that is, at the side of the hand when the disk D is pulled out. The notch 45 communicates with the disc accommodating recess 35,
The shape is such that it is possible to hang a fingertip on the peripheral edge D1 of the disk D stored in the disk storage recess 35.

The backing sheet 26 shown in FIG. 4 and the like is folded back to the back of the tray stacking section 50 with the fold line 51 as the boundary and the tray stacking section 50 fixed in a state of being stacked on the bottom plate 30 of the tray body 25 described above. A sheet extending portion 52, a cut 49 formed from the sheet extending portion 52 to the tray overlapping portion 50, a projecting piece 55 cut and raised upward from the cut 49 at the fold lines 53 and 54, A folded front portion 56 is provided extending to the front end side. Folded front 56
Is folded back to the upper surface side of the mount extension 52 at the fold lines 57 and 58. When the tray 13 is inserted into the outer case 12, the folded front portion 56 is used for opening 11 of the outer case 12.
Plugged in.

As will be described later, the projecting piece 55
When the tray 3 is pulled out of the outer case 12, it engages with the stopper piece 20 to prevent the tray 13 from being pulled out further. The protruding piece 55 is cut and raised at the fold lines 53 and 54 so that the front end 55 a thereof comes into sliding contact with the inner surface of the outer case 12 with some elasticity.

A fold line 65 is formed at an intermediate position in the front-rear direction of the mount extension 52 in the width direction of the mount extension 52,
The front half of the mount extension 52 can be bent downward at the fold line 65. That is, as shown in FIG. 6 and the like, when the tray 13 is pulled out of the outer case 12 halfway, the front half of the mount extension 52 is bent downward at the fold line 65, so that the disc D with respect to the disc accommodating recess 35 is bent. It is easy to put in and out.

A cut 71 for forming the finger hook 70 is formed at the front of the mount extension 52. The tray 13 can be easily pulled out from the outer case 12 by pressing the finger hook portion 70 with a fingertip by pressing the inner portion of the cut 71 to make it concave. An end stopper 72 for regulating the position of the rear end of the insertion of the tray 13 with respect to the outer case 12 is formed at the rear end of the mount extension 52.

Notches 75 and 76 are formed on the edge of the opening 11 of the outer case 12 at positions corresponding to the finger hooks 70. The cutouts 75 and 76 are formed so that the front portion of the tray 13 can be pinched with a fingertip when the tray 13 is pulled out from the outer case 12.

Next, the disk case 1 of this embodiment
The operation of 0 will be described. As shown in FIG.
3 is pulled out of the outer case 12. In this case, the tray 13
The tray 13 can be pulled out to a position where the projecting piece 55 of the outer case 12 engages with the stopper piece 20 of the outer case 12.

Then, as shown in FIG. 7, the disc D is inserted into the disc accommodating recess 35. In this case, as shown in FIG. 9, the peripheral portion D1 of the disk D, that is, the non-recording surface comes into contact with the support convex portion 40, so that the disk D is slightly lifted, so that the recording surface of the disk D is protected. become. Further, the tray main body 25 and the backing sheet extension 52
If necessary, an appendix 80 such as a lyric card or a guide is inserted into the pocket 79 between them.

In this embodiment, as shown in FIG. 9, an upright wall 81 is formed between the fold lines 53 and 54 at the rear of the tray. A space (pocket portion 79) where the appendix 80 can be smoothly inserted is secured between the base 80 and the backing extension portion 52, and the upright wall 81 regulates the insertion position of the rear end portion 80a of the appendix 80. be able to.

After the disc D and the appendix 80 and the like are set on the tray 13 as described above, the folded front portion 56 is overlaid on the disc D as shown in FIG.
Then, by inserting the tray 13 into the outer case 12, the disc D and the appendix 80 are stored in the outer case 12 integrally with the tray 13 as shown in FIG.

When the tray 13 is pulled out of the outer case 12 to take out the disk D, the tip 55a of the projecting piece 55 of the tray 13 moves toward the opening 11 of the outer case 12 while being in contact with the inner surface of the outer case 12. And tray 13
Is pulled out to some extent, the projecting piece 55 enters the back side of the stopper piece 20 of the outer case 12. Then, as shown in FIGS. 7 and 9, the engagement of the protruding piece 55 and the stopper piece 20 prevents the tray 13 from being further pulled out.

Therefore, it is possible to prevent the tray 13 from falling out of the outer case 12 and to prevent the disc D from falling off the tray 13. In order to take out the disk D in the disk accommodating recess 35, the disk D can be taken out by pinching the peripheral edge D1 of the disk D at the notch 45 with a finger.

As means for forming the supporting projections 40 on the bottom plate 30 of the tray 13, as shown in the tray body 25A of the second embodiment shown in FIG.
1, an intermediate plate 90 may be provided. The intermediate plate 90 is provided on the inner peripheral edge 35a of the disc housing recess 35.
Along the inner peripheral edge 35a, the inner peripheral edge 90a is punched to have a slightly smaller diameter than the inner peripheral edge 35a, and the upper surface of the inner peripheral edge 90a functions as the support projection 40.

Further, like the backing sheet 26A constituting a part of the tray 13 of the third embodiment shown in FIG. 11, a folded front portion 56 similar to the first embodiment is provided on the front side of the tray overlapping portion 50.
And a protruding piece 5
5 and an end stopper 72 may be provided. In the case of this embodiment, the appendix 80 is placed on the upper surface of the disk D as shown in FIG. The mount 26A of this embodiment has a simpler configuration than the mount 26 of the first embodiment, and the cost of the tray 13 can be reduced.

Also, as in the case of a CD single case 10A of the fourth embodiment shown in FIG.
A first tray 13 similar to the above-described embodiment, which is provided at one end of the outer case 12A, and a second tray 9 which is provided, at the other end of the outer case 12A.
5 may be provided.

In this embodiment, a pocket portion 97 is formed between the second tray 95 and the holding piece 96, and an appendix 80 such as a lyrics card is stored in the pocket portion 97. Folded piece 98 formed at the end of second tray 95
Is inserted into the opening 99 of the outer case 12A when inserting the second tray 95 into the outer case 12A.

In the second to fourth embodiments, portions common to the first embodiment (FIGS. 1 to 9) are denoted by the same reference numerals as in the first embodiment, and description thereof is omitted.
In each of these embodiments, the same effect as in the first embodiment can be obtained.

In short, the disk case of the present invention
It is sufficient that a paper outer case and a paper tray having a shape and dimensions corresponding to the media disk to be stored are configured, and it is understood that specific modes of the outer case and the tray are not limited to the above embodiments. Of course.

[0038]

According to the first aspect of the present invention, the disc can be reliably held at a predetermined position in the tray, and the disc can move in the tray or the disc can be inadvertently ejected from the tray. Can be prevented and the disc can be stored safely.

Since the disk case of the present invention supports the disk while slightly floating above the bottom plate of the tray, there is no need to provide a protective sheet such as a nonwoven fabric on the bottom plate to protect the recording surface of the disk. For this reason, a beautiful design can be printed on the bottom plate, and an excellent design can be obtained.

Further, since the disk case of the present invention can be constructed without using plastic parts, the anxiety factor when using plastic can be eliminated, and disposal such as incineration can be performed without any problem. And the outer case and tray made of paper of the present invention are easy to apply a unique and beautiful print of a desired design, etc., and printing on paper can be performed at low cost without problems by ordinary printing techniques, High-quality printing can be easily realized. The outer case and tray made of paper can be formed by a die that can be manufactured at low cost.

According to the disk case of the present invention, since the supporting projection can be formed on a part of the bottom plate by pressing, the number of parts increases even if the supporting projection is provided. And can contribute to further cost reduction.

The disk case according to claim 3 is
An appendix such as a lyrics card attached to the disc can be stored in the pocket on the lower surface side of the bottom plate of the tray, so that the top of the disc is not hidden by the appendix. Therefore, when the tray is pulled out from the outer case, the upper surface of the disk with the desired design can be directly seen, and the design of the upper surface of the disk by printing or the like can be utilized.

[Brief description of the drawings]

FIG. 1 is an exemplary perspective view of a first embodiment of the present invention in which a tray of a disk case is removed from an outer case;

FIG. 2 is a development view of an outer case of the disk case shown in FIG. 1;

FIG. 3 is a perspective view of a tray body of the disk case shown in FIG. 1;

FIG. 4 is an exploded view of the mount of the tray of the disk case shown in FIG. 1;

FIG. 5 is a perspective view showing a state where the tray of the disk case shown in FIG. 1 is inserted into an outer case;

FIG. 6 is an exemplary perspective view showing a state before a disk is put in the disk case shown in FIG. 1;

FIG. 7 is an exemplary perspective view showing a state where a disk is put in a tray of the disk case shown in FIG. 1;

8 is a perspective view showing a state where the tray of the disk case shown in FIG. 1 is being inserted into the outer case.

FIG. 9 is a sectional view along F9-F9 in FIG. 7;

FIG. 10 is a cross-sectional view of a tray main body of a disk case according to a second embodiment of the present invention.

FIG. 11 is a perspective view of a tray of a disk case showing a third embodiment of the present invention.

FIG. 12 is a sectional view of a state where the tray shown in FIG. 11 is pulled out from an outer case.

FIG. 13 is a perspective view of a disk case, a disk, and the like showing a fourth embodiment of the present invention.

[Explanation of symbols]

 10, 10A: Disc case 11: Opening 12, 12A: Outer case 13: Tray 20: Stopper piece 25: Tray body 26, 26A: Mount 30, Bottom plate 35: Disc accommodating recess 40: Support projection 55: Projection Piece 56 ... Fold back part 79 ... Pocket part 80 ... Appendix D ... Disc

Claims (3)

[Claims] 1. A book case-shaped paper outer case having an opening on one end side and a stopper piece folded inside the opening, and is put in and out of the outer case through the opening. A tray made of paper having a disc accommodating recess for accommodating the disc, wherein the tray is in contact with a lower surface of a peripheral edge portion of the disc and has a bottom plate having a support protrusion for supporting the disc in a floating state; A projecting piece that engages with the stopper piece while the tray is being pulled out of the outer case and prevents the tray from being further pulled out; and a front part of the tray that is folded back and the tray is inserted into the outer case. And a folded front part inserted into the opening of the outer case. 2. The disk according to claim 1, wherein said support projection is formed by extruding a part of said bottom plate from a back surface side by a press along an inner peripheral edge of said disk accommodation recess. Case. 3. The tray includes a tray body having the disc accommodating recess and a bottom plate, a mount having a tray overlap portion laminated on the bottom plate, and an extension folded over the tray overlap portion. 2. The disk case according to claim 1, wherein a pocket portion capable of storing an appendix is formed between the tray overlapping portion and the extension portion of the backing paper.