JPH10106203A - Disk case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely hold an optical disk even with a relatively small holding force without fail by providing, at positions on the side faces of a cover corresponding to opening portions of a tray, projections for pressing a peripheral edge of the optical disk. SOLUTION: A projection 31 having a hemispherical shape presses a peripheral portion of an optical disk 7 from above. Furthermore, since the peripheral portion is pressed by a curved portion of the projection 31, a point contact or a line contact is established. As a result, the optical disk 7, especially a surface thereof, is not damaged. When the optical disk 7 is placed in a disk case 1, the disk 7 is received in a circular recessed portion 6b so that a center thereof is tentatively fixed with holding projections 6c while a peripheral edge is pressed. Thus, the optical disk does not come off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a storage case for storing a storage disk, and more particularly to a case for storing an optical disk such as a DVD.

[0002]

2. Description of the Related Art In recent years, the storage capacity of an optical disk has been dramatically increased. Recently, DVD, which has become a hot topic, will become the mainstream optical disk in the future. Incidentally, optical disks are not sold by themselves, but are usually sold in distribution in a storage case. Of the optical discs, so-called “CDs” have been developed as disc cases and used as prescribed.

[0003] The disc case includes a case body (called a bottom) and a lid (called a lid) supported by the case body so as to be openable and closable. An inlay made of, for example, paper is attached to the inner bottom surface of the case body so as to be in close contact therewith, and a booklet made of, for example, paper is inserted into the lid and supported by a support piece. The case main body is formed in a state where a part of the side surface is chipped. A tray having a recess for accommodating a CD is attached to the case body.

A holding projection for holding a CD is provided at the center of the tray, and an opening is provided on each side of the tray at a position corresponding to a defective portion provided on the case body. For this reason, the CD stored in the tray and temporarily fixed by the holding protrusions, loosens the holding protrusions once, and puts a finger from the side through the defective portion and the open portion,
You can remove it by pulling it up. Since the disc case has such a structure, the holding force is mainly ensured by the holding projections.

By the way, unlike a CD, a DVD has a large storage capacity, a memory is applied very precisely, and has a structure in which two thin circular substrates are bonded to each other. Must. In particular, it is desirable that stress is not applied to the DVD disk itself as much as possible. Therefore, even when the DVD is stored in the disk case, it is necessary to reduce the force of the holding projection pressing the center hole of the DVD as much as possible so that the DVD itself is not burdened.

In this sense, the holding force of the holding projection is to be suppressed to a minimum necessary level. However, if the holding force of the holding projections is weakened in this way, the DVD easily falls off the holding projections when an impact or the like is applied while the DVD is housed in the disk case. In the case of DVD, it is necessary to make the holding force for pressing the center hole smaller than that of CD. However, in this case, the DVD is easily detached. The detached DVD will be backlashed and damaged in the disc case.

On the other hand, in a disk case, it is necessary to mount a booklet on the lid, but this booklet must be slid and inserted into a small gap between the ceiling surface of the lid and the supporting piece. Usually, when the booklet is inserted by a mechanical method, there is a drawback that the booklet is relatively easily inserted on the near-side support piece and is difficult to insert into the back-side support piece.

[0008]

SUMMARY OF THE INVENTION The present invention is intended to solve such technical problems. That is,
The object of the present invention is to provide a holding force of a relatively small holding projection,
It is an object of the present invention to provide a disk case that can hold an optical disk sufficiently without coming off. A further object is to provide a disc case in which a booklet can be securely mounted on a lid of the disc case.

[0009]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies on such problems, and as a result,
Dispersing the position where the optical disc is held at the center and the position of the open portion of the tray makes it possible to maintain a reliable holding force as a whole. The present inventors have found that they can function extremely advantageously in mounting, and have completed the present invention based on this finding.

That is, the present invention is based on (1) a case main body, a tray attached to the case main body and having a holding projection for accommodating an optical disk and temporarily fixing a center hole thereof, and pivotally attached to the case main body so as to be freely opened and closed. A disc case having a cover body provided with a projection for pressing a corner of the optical disc at a position corresponding to the opening of the tray on the side face of the cover body.

[0011] (2) The projection is provided in the disk case (1) having a tapered portion for guiding when the booklet is inserted.

Further, (3) the projection is provided in the disk case (1) having a curved surface portion for guiding when a booklet is inserted.

[0013] (4) The disk case of (1), wherein the projection has a tapered portion for pressing a peripheral corner of the optical disk.

Further, (5) the disk case of the above (1), wherein the protrusion has a curved surface portion for pressing a peripheral corner of the optical disk.

Further, (6) the projection is in the disk case of (1) above, which is a hemispherical projection.

Further, (7) the DVD disc cage of the above (1), wherein the holding projection has a holding force weaker than that of the CD.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk case 1 according to the present invention will be described below with reference to the drawings. FIG.
FIG. 2 is an exploded view of the disk case 1, FIG. 2 is a perspective view with the cover 3 opened, and FIG. 3 is a plan view with the cover 3 opened. This disk case 1
Is composed of a case body (usually called bottom) 2, a tray 6, and a lid (usually called lid) 3. The case body 2 has a missing portion 2a in which a part of the side surface is missing, and the missing portion 2a is formed on both sides.

An inlay 4 made of, for example, paper is disposed on the inner bottom surface of the case body 2 so as to be in close contact therewith, and the tray 6 is further mounted thereon. The tray 6 is provided with a circular recess 6b, in which a whole CD can be stored. A holding projection 6c for holding the optical disk 7 is provided at the center of the circular recess 6b. The holding projection 6c has a large number of divided elastic holding pieces 61. When the optical disk is a DVD, the holding force of the holding protrusion 6c is set so as to normally hold the CD with a weaker force than holding the CD so as not to damage the center hole 7a.

In order to reduce the holding force, for example, a method of reducing the density of the elastic holding piece 61 as shown in FIG. 6 is adopted. Further, on both sides of the tray 6, the case body 2 is provided.
An opening 6a is provided at a position corresponding to the defective portion 2a provided at the opening. The optical disk 7 is housed in the circular recess 6b of the tray 6 with its center hole 7a temporarily fixed and held by the holding projection 6c. At this time, the peripheral portion of the optical disk 7 slightly protrudes outward. (See FIGS. 2 and 3).

When the tray 6 is attached to the case body 2, the defective portion 2 a of the case body 2 and the opening 6
a is a position that coincides with each other. With the holding projection 6c loosened, a finger is applied from the side through the deficient portion 2a of the case main body 2 and the open portion 6a of the tray 6, and the optical disk 7 is lifted up from the disk case 1. Can be removed. On the other hand, the lid 3 is pivotally attached to the case main body 2 so as to be openable and closable, and a booklet 5 made of paper or the like is inserted therein. The booklet 5 includes support pieces 3a,
3b, and is inserted into the ceiling surface inside the lid 3. At approximately the center of the two support pieces 3a and 3b of the lid 3, a projection 31 is formed.
As described later, the peripheral corner of the optical disk 7 can be pressed and held from above (see FIG. 4).

The projection 31 has a hemispherical shape. The peripheral corner of the optical disk 7 is pressed from above, and the peripheral corner is pressed by the curved surface K1 of the projection 31, so that point or line contact occurs. The optical disk 7, especially its surface, is not damaged. When the optical disk 7 is accommodated in the disk case 1, it is housed in the circular concave portion 6b and the central portion is temporarily fixed by the holding projection 6c, and the peripheral corners thereof are also pressed, so that the optical disk 7 does not come off. (Pressing function)

Incidentally, the disk case 1 is generally assembled by a cover expanding step, an inlay attaching step, a tray attaching step, a booklet inserting step, a disk supplying step,
It is performed by sequentially going through a lid closing process. As described above, conventionally, in the booklet insertion step of these steps, when the booklet 5 is inserted into the lid 3, the booklet 5 collides with the support pieces 3 a and 3 b of the lid 3 and does not insert. There was a leopard.

That is, the booklet 5 is attached to the lid 3.
Is inserted from the near side, the support piece 3 on the near side
Although it can be easily inserted on the upper side a, it is easy to hit against the support piece 3b on the back side. In the present invention, 2
The projection 3 having a specific shape between the two support pieces 3a and 3b
By providing 1, the projecting body 31 can play a guiding role when the booklet 5 is inserted (see FIG. 5).

That is, since the whole projection guides (guide function), the direction of the booklet tip is determined and the support piece 3b
The booklet 5 is reliably inserted above. Moreover,
Since the projection is spherical, the curved surface K of the projection 31
The guide 1 guides the tip of the booklet 5 and smoothly guides the booklet 5 into the gap between the lid ceiling surface and the projection 31 (see FIG. 5A).

FIGS. 7 and 8 show another modification of the projection 31. FIG. The projection 31 in the example of FIG. 7 includes a tapered portion T1 when viewed from a direction perpendicular to the booklet insertion side [FIG.
(See FIG. 7A), and also has a tapered portion T2 when viewed from the booklet insertion side [see FIG. 7B]. Only the peripheral corners of the optical disk 7 are pressed by the tapered portion T2 of the projection 31 and come into point or line contact, so that the surface of the optical disk 7 is not damaged. When the booklet 5 is inserted, the tapered portion T1 of the projection 31 guides the tapered portion and smoothly inserts the booklet 5 onto the projection.
Furthermore, the protrusion 31 guides the tip of the booklet 5 and guides it on the support piece 3b.

The projection 31 in the example of FIG. 8 has a curved surface portion K2 when viewed from the direction perpendicular to the booklet insertion side [FIG. 8 (a)].
See also from the booklet insertion side.
3 (see FIG. 8B). Only the peripheral corners of the optical disk 7 are pressed by the tapered portion T3 of the projection 31 and come into point or line contact, so that the surface of the optical disk 7 is not damaged. When the booklet 5 is inserted, the curved surface portion K2 of the projection 31 serves as a guide and is smoothly inserted onto the projection.

Further, the projection 31 guides the tip of the booklet 5 and guides it on the support piece 3b. Although the present invention has been described above, the present invention is not limited to only the embodiment, and it goes without saying that other various modifications are possible without departing from the essence of the present invention. For example, a DVD has a great merit, but can be naturally applied to another optical disk 7 such as a CD.

[0028]

As described above, according to the present invention, when the optical disk 7 is housed in the disk case 1, even if the holding force of the holding projection 6c is weak, the corner of the optical disk is pressed by the projection 31. Therefore (pressing function), the optical disk 7 does not rattle and is not damaged. Also, the protrusion 31
Performs guidance when the booklet 5 is inserted (guidance function), so that the leading end of the booklet is securely inserted on the support piece 3b. In addition, since the protrusion 31 guides the booklet 5 so as to be guided (guide function), the booklet can be securely inserted.

[Brief description of the drawings]

FIG. 1 is an exploded view of a disk case according to the present invention.

FIG. 2 is a perspective view of the disc case according to the present invention in an open state.

FIG. 3 is a front view of the disk case according to the present invention in an opened state.

FIGS. 4A and 4B are side views of the disc case according to the present invention in a closed state, in which FIG. 4A is a view seen from a direction perpendicular to the booklet insertion direction, and FIG. FIG.

FIG. 5 shows a side view of the lid according to the present invention,
(A) and (b) are diagrams viewed from a direction perpendicular to the booklet insertion direction, and (c) are diagrams viewed from the booklet insertion direction.

FIG. 6 is a view showing a protrusion of the disk case according to the present invention.

FIG. 7 shows a modification of the projection according to the present invention,
(A) is a view of the lid viewed from a direction perpendicular to the booklet insertion direction, and (b) is a view of the disc case viewed from the booklet insertion direction.

FIG. 8 shows a modification of the projection according to the present invention,
(A) is a view of the lid viewed from a direction perpendicular to the booklet insertion direction, and (b) is a view of the disc case viewed from the booklet insertion direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Disc case 2 ... Case main body 2a ... Defect part 3 ... Lid 3a ... Support piece 3b ... Support piece 31 ... Projection 4 ... Inlay 5 ... Booklet 6 ... Tray 6a ... Opening part 6b ... Circular recessed part 6c ... Holding protrusion 61 ... Elastic holding piece 7 ... Optical disk (CD, DVD) 7a ... Center hole T1 ... Tapered surface T2 ... Tapered surface T3 ... Tapered surface K1 ... Curved surface part K2 ... Curved surface part

Claims (7)

[Claims] 1. A disk case comprising: a case main body; a tray attached to the case main body and having a holding projection for storing an optical disk and temporarily fixing a center hole thereof; and a lid pivotally attached to the case main body so as to be openable and closable. The disk case according to any one of claims 1 to 3, wherein a projection is provided at a position corresponding to the opening of the tray on a side surface of the lid to press a peripheral corner of the optical disk. 2. The disk case according to claim 1, wherein the projection has a tapered portion for guiding when the booklet is inserted. 3. The disk case according to claim 1, wherein the projection has a curved surface for guiding when inserting the booklet. 4. The disk case according to claim 1, wherein the projection has a tapered portion for pressing a peripheral corner of the optical disk. 5. The disk case according to claim 1, wherein the projection has a curved surface portion pressing a peripheral corner of the optical disk. 6. The disk case according to claim 1, wherein the protrusion is a hemispherical protrusion. 7. The DVD disk case according to claim 1, wherein the holding projection has a holding force weaker than a holding force for a CD.