JP2607580B2 - Disk storage case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to an improvement in a disk storage case that enables recording or reproduction on a disk while the disk is stored therein. About.

(Prior Art) As is well known, in the field of audio equipment, an analog information signal such as an audio signal is converted into digital data, which is recorded on a recording medium such as a disk or a tape and reproduced. Digital recording and playback systems have become widespread.
Among them, in the case of using a disc as a recording medium, a compact disc player that optically reproduces digital data from a compact disc (CD) having a diameter of 12 cm is currently mainstream.

In recent years, attention has been paid to the enormous recording capacity of compact discs, and information such as maps and dictionaries is recorded on compact discs.
ROM), this CD-R
Disc playback devices for playing back OMs have been developed.

By the way, the added value of the information recorded on this type of disc is extremely high, and the disc is stored in a case to prevent data reading errors due to the attachment of dust and dirt and the occurrence of scratches. However, it has been considered that each of the cases is mounted on a disk reproducing apparatus to reproduce the disk.

FIG. 5 shows such a conventional compact disk storage case. That is, reference numeral 11 in the figure denotes a case body, which is formed in a thin box shape with an opening on the upper surface in the figure. A substantially circular step 11b for positioning the disk 12 is formed on the bottom surface 11a of the case body 11.

The disk 12 is located substantially at the center of the bottom surface 11a.
An opening 11c is formed to connect the disk drive to a disk rotation drive unit including a disk motor 13 and a disk table 14. An opening 11d is formed in the bottom surface 11a for reproducing digital data recorded on the disk 12 by operating an optical head (not shown) along the radial direction of the disk 12.

Further, on the bottom surface 11a, a shutter member 1 that moves in an arc around the opening 11c to open and close the opening 11d is provided.
5 are provided. The shutter member 15 has an operation portion 15a formed to penetrate an opening 11f formed in one side surface 11e of the case body 11 and protrude to the outside. The shutter member 15 is slid in the direction of arrows A and B in FIG.
It opens and closes.

A transparent acrylic cover 16 is supported at one end of the case main body 11 so as to be rotatable in the directions of arrows C and D in the figure. The cover 16 is turned in the direction of arrow C in the drawing to be in an open state, and allows the disk 12 to be attached and detached, and is turned in the direction of arrow D in the drawing to be in a closed state to seal the case body 11. .

Note that an opening 16a through which a clamper (not shown) facing the disc table 14 is inserted is formed at a substantially central portion of the cover 16.

Then, the disk storage case configured as described above normally closes the opening 11d by the shutter member 15 so that dirt, dust, and the like do not enter,
As shown in FIG. 6, when the operation unit 15a is mounted in the disk reproduction device 17, the operation unit 15a comes into contact with a projection (not shown) provided in the disk reproduction device and is moved in the direction of arrow A in the figure. Accordingly, the shutter member 15 is rotated in a direction to open the opening 11d, and is used for reproducing the disk 12.

FIG. 7 shows the disk 12 in the disk storage case.
Shows a state in which is stored. That is, the disk 12 is stored by the step 11b of the case body 11 so that the through hole 12a formed in the center thereof is positioned at a position corresponding to the opening 11c. The escape portion 11g formed at a part of the step portion 11b so as to be separated from the disk 12 is provided by a user who inserts a fingertip into the disk 12
This is to make it easier to take out.

By the way, at present, compact discs have a diameter of 12
cm, but in the future small discs with a diameter of 8 cm tend to appear. For this reason, it is needless to say that even a small disk needs to be stored in the disk storage case. In this case, separately producing a disk storage case corresponding to a small disk having a diameter of 8 cm separately from a disk storage case corresponding to a disk having a diameter of 12 cm causes a problem that economic disadvantage occurs.

Further, in a disc reproducing apparatus designed exclusively for a disc storage case corresponding to a disc having a diameter of 12 cm, a small disc cannot be reproduced, and there is a disadvantage that handling is inconvenient for a user.

Therefore, as shown in FIG. 8, it is conceivable to store the small disk 18 in the above-mentioned conventional disk storage case. However, the small disk 18 cannot be positioned at the step 11b of the case body 11, That is, the through hole 18a formed in the center of the small disk 18 cannot correspond to the opening 11c, and a problem arises that the small disk 18 cannot be connected to the disk rotation drive unit.

In the case of a CD-ROM, the amount of information that can be recorded is extremely large, and it is strongly believed that a small disc having a diameter of 8 cm is sufficiently practical, and the above-mentioned problem is particularly serious. It has become.

(Problems to be Solved by the Invention) As described above, the conventional disk storage case cannot cope with disks having different diameters, and thus has a problem of lack of practicality.

Therefore, the present invention has been made in consideration of the above circumstances, and can reliably accommodate disks having different diameters.
An object of the present invention is to provide a very good disk storage case excellent in practicality.

[Structure of the Invention] (Means for Solving the Problems) That is, the disk storage case according to the present invention accommodates the first disk therein and hermetically seals it, and has a flat surface facing the first disk. A substantially circular step for positioning the first disk, a first opening for connecting the first disk to a disk rotation drive, and a head for recording or reproducing data on or from the first disk A second opening for operating the first disk is formed, and in a state in which the first disk is housed inside, the recording / reproducing is performed on the first disk by the operation of the disk rotation drive unit and the head. It is for what you get.

It is formed in a substantially ring shape and is provided detachably in the disk storage case. The outer peripheral portion is positioned by the step portion, and the outer peripheral portion is positioned by the step portion from the first disk. An inner peripheral portion for regulating the position of the second disk having a small diameter so that the center portion thereof faces the first opening portion; and a second portion of the inner peripheral portion, the position of which is regulated by the inner peripheral portion. An adapter member having an escape portion for taking out the second disk from the inner peripheral portion is provided at a position facing the center of the disk.

(Operation) According to the above configuration, the first disk is positioned by the step, and the second disk is regulated by the inner peripheral portion of the adapter member whose outer peripheral portion is positioned by the step. With this configuration, both the first and second disks having different diameters can be surely positioned and accommodated, which is suitable for practical use. An escape portion for taking out the second disk from the inner peripheral portion is formed in the inner peripheral portion of the adapter member at a position opposed to the center of the second disk whose position is regulated by the inner peripheral portion. This facilitates the mounting and dismounting of the second disk, which is also suitable for practical use.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, the same parts as those in FIG. 5 are denoted by the same reference numerals, and only different parts will be described here. That is, the stepped portion 11b formed on the bottom surface 11a of the case body 11 has the adapter member 1 formed in a substantially ring shape.
9 is detachable.

The adapter member 19 is formed so that its outer diameter is fitted into the step portion 11b of the case main body 11 and is fixed in the case main body 11, and its inner diameter is a small disc 18 cm in diameter of 8 cm.
(Not shown in FIG. 1).

Here, as shown in FIG.
In b, a relief portion 11h having the same shape as the relief portion 11g is formed at a portion facing the relief portion 11g with the opening portion 11c interposed therebetween. Then, as shown in FIG. 1 again, the adapter member
19 also has protrusions 19a and 19b which are shaped to fit into the escape portions 11g and 11h of the step portion 11b.

The cover 16 has an adapter member 19 with a step 11b.
Pressing portions 16b, 16c are protruded at positions facing the protruding portions 19a, 19b in a state of being fitted inside.

In the above configuration, a small disk 1
In the case of housing 8, as shown in FIG. 3, the adapter member 19 is fitted into the step portion 11b such that the protrusions 19a and 19b are fitted with the escape portions 11g and 11h. . Then, the small disc 18 is loosely fitted in the adapter member 19, so that the small disc 18 is inserted into the through hole 18 formed in the center thereof.
Positioning is performed such that a is a position corresponding to the opening 11c.

After that, when the cover 16 is closed and the case body 11 is sealed, the pressing portions 16b and 16c of the cover 16
9a and 19b come into contact with the adapter member 19, and the small disk 18 is stably and reliably stored in the disk storage case.

In this state, when the disc storage case is mounted in the playback device and the small disc 18 is driven, the adapter member 19
Since the cover 16 is pressed by the holding portions 16b and 16c, even when the small disk 18 and the adapter member 19 are in contact with each other, only the small disk 18 can be lifted to a drivable state.

Here, on the inner peripheral side of the adapter member 19, the projections 19a, 19b
Escape portions 19c and 19d are formed at positions opposite to, respectively, so that the user can easily insert the fingertip and take out the small disk 18.

When storing the disk 12 having a diameter of 12 cm, the adapter member 19 may be removed and the disk 12 may be stored so as to be positioned at the step 11b. At this time, the pressing portions 16b and 16c of the cover 16 are located at positions corresponding to the disk 12 and the escape portions 11g and 11h on the outside, so that the driving of the disk 12 is not affected.

Therefore, according to the configuration as in the above embodiment, the diameter is
The 12 cm disk 12 is positioned by a step 11 b formed on the bottom surface 11 a of the case body 11, and the small disk 18 having a diameter of 8 cm is positioned by the inner periphery of the adapter member 19 whose outer periphery is positioned by the step 11 b. Since the discs are regulated, both discs 12 and 18 having different diameters can be surely positioned and accommodated, which is suitable for practical use.

In the inner peripheral portion of the adapter member 19, escape portions 19c and 19d for taking out the small disk 18 from the inner peripheral portion are provided at positions opposed to each other with respect to the center of the small disk 18 whose position is regulated by the inner peripheral portion. Are formed, so that the small-sized disk 18 can be easily attached and detached, and this point is also suitable for practical use.

Next, FIG. 4 shows another embodiment of the present invention. That is, three projecting adapter members 20 are detachably provided on the bottom surface 11a surrounded by the stepped portion 11b, and the three adapter members 20 are used to remove the small disk.
Since the position 18 is positioned, substantially the same effect as in the above embodiment can be obtained by such a configuration.

It should be noted that the present invention is not limited to the above embodiments, and can be variously modified and implemented without departing from the scope of the invention.

[Effects of the Invention] Therefore, as described in detail above, according to the present invention,
It is possible to reliably accommodate disks having different diameters, and to provide a very good disk storage case with excellent practicality.

[Brief description of the drawings]

1 and 2 are a perspective view and a plan view, respectively, showing an embodiment of a disk storage case according to the present invention, FIG. 3 is a plan view showing a use state of the embodiment, and FIG. FIGS. 5 to 7 are perspective views, plan views, and plan views, respectively, illustrating a conventional disk storage case, and FIG. 8 is a view illustrating a conventional problem. It is a top view. 11 Case body, 12 Disk, 13 Disk motor, 14 Disk table, 15 Shutter member, 16 Cover, 17 Disk reproducing device, 18 Small disk, 19 Adapter member.

Claims (1)

(57) [Claims] 1. A substantially circular step for positioning the first disk on a flat surface facing the first disk, wherein the first disk is housed and sealed therein. A first opening for connecting the first disk to a disk rotation drive unit, and a second opening for operating a recording or reproducing head on the first disk are formed; A disk storage case capable of recording or reproducing data on or from the first disk by the operation of the disk rotation drive unit and the head with the first disk stored therein. An outer peripheral portion which is provided detachably in the disk storage case, and which is positioned by the step portion, and in a state where the outer peripheral portion is positioned by the step portion,
An inner peripheral portion for regulating a position of a second disk smaller in diameter than the first disk so that a center portion thereof faces the first opening portion; An adapter member having an escape portion for removing the second disk from the inner peripheral portion is provided at a position opposed to the center of the second disk whose position is regulated by the peripheral portion. A disk storage case characterized by being constituted.