KR100560395B1 - Disc Cartridge - Google Patents

Abstract

The present invention relates to a cartridge for protecting a disk from external contaminants such as fingerprints and dust.

The disc cartridge of the present invention includes a cartridge body provided with a disc storage space, and a disc holder for attaching and detaching an elastic member to press the disc.

With this arrangement, the disc cartridge according to the present invention can protect the information recording surface of the disc from contamination by fingerprints and the like by integrating the disc and the holder by pressing the disc with elastic pressing force when the disc is taken out from the cartridge.

Description

Disc Cartridge

The present invention relates to a recording medium, and more particularly to a cartridge for protecting a disk from external contaminants such as fingerprints and dust.

Discs are divided into recordable types such as a write once read many (WORM) type, a rewritable type, and a RAM type according to the read-only and rewritable number of times such as a CD-ROM and a DVD-ROM. A recordable disc has a weak information recording surface against contamination such as dust or fingerprints and damage such as scratches as the density increases. For this reason, recordable discs are generally housed in cartridges so as to be protected from contamination or damage. Since the disc housed in the cartridge can be opened by the user's needs, a cartridge structure has recently been proposed in which the disc can be taken out from the cartridge. As can be seen from FIG. 1, such a cartridge is composed of a cartridge body 2 in which the disk 1 is housed, and a holder 6 detachably mounted to the cartridge body 2. The cartridge body 2 is provided with an opening so that the optical pickup can access the disk 1, and the opening is opened and closed by the shutter 4. And the bottom of the cartridge body 2 is formed with a receiving opening so that the disk (1) can be inserted. When the user uses the disc 1 in a bare state (not stored in a cartridge) and stores it in the cartridge, the user holds the disc 1 so that the information recording surface of the disc 1 is not contaminated. After inserting the disk 1 into the bottom storage port of 2), the storage port is shielded using the holder 6. In the state where the disk 1 is stored in the cartridge, when the disk 1 is pulled out for use in the bare state, the holder 6 is first detached from the cartridge body 2 to be weighed under the storage opening. You must pick up the disc that falls by hand. In this way, in order to store the disk 1 in the cartridge body 2 or to take it out, the user holds the disk 1 by hand and pushes it into the cartridge body 2 or falls out of the cartridge body 2 by its own weight ( 1) You must hold it. At this time, since the information recording surface of the disk 1 is likely to be contaminated with fingerprints or the like, careful attention of the user is required. In the trend of high density and high speed of the disc, if the information recording surface of the disc 1 is contaminated by fingerprints or the like, not only accurate recording can be performed at the time of recording, but also it is easy to cause playback error during reproduction.

Accordingly, it is an object of the present invention to provide a disc cartridge in which the information recording surface of the disc is not contaminated.

Another object of the present invention is to provide a disc cartridge which allows a user to simply store the disc in the cartridge or to take it out of the cartridge.

In order to achieve the above object, the present invention includes a cartridge main body provided with a disc housing space, and a disc holder for attaching and detaching an elastic member to press the disc and detaching the cartridge main body. When the disk is taken out from the main body or the disk is accommodated, the disk is pressed by a constant elastic pressing force so that the disk is not separated from the holder.

Other objects and features of the present invention in addition to the above objects will become apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 2 to 6.

2 is a cross-sectional view showing a disc cartridge of the present invention.

In the configuration of Fig. 2, the disc cartridge of the present invention includes a cartridge body 12 having an inclined surface 12a and a holder 14 formed with an annular arm 18 for pressing the disc 1. The cartridge main body 12 is provided with a receiving opening at a bottom thereof, and the disk 1 is stored therein. The inclined surface 12a is produced integrally with the cartridge body 12 in the form of a rib during injection molding of the cartridge body 12. This inclined surface 12a serves to release the restraining force of the annular arm 18 against the disk 1 by pushing the annular arm 18 toward the side wall when the holder 14 is mounted to the cartridge body 12. The annular arm 18 presses the disk 1 with a constant elastic pressing force when the holder 14 is taken out from the cartridge body 12 so that the disk 1 is not separated from the holder 14 and the holder 14 ) Is detached from the disk 1 by being pushed toward the side wall of the cartridge body 12 by the inclined surface 12a when it is mounted to the cartridge body 12. To this end, the annular arm 18 is integrated with an inclined step 18a to be joined to the inclined surface 12a. The annular arm 18 is formed integrally with the holder 14 during injection molding of the holder 14. At the lower side of the holder 14, a stepped portion 16 is formed which captures the disk 1.

When the holder 14 is detached from the cartridge body 12, the disk 1 is pressed by the annular arm 1 to maintain the integrated state with the holder 14. At this time, as shown in FIG. 3, the annular arm 18 compresses the disc 1 with an elastic pressing force directed toward the step 16. Accordingly, the disk 1 can be stably supported by the stepped portion 16 and the annular arm 18.

The method of storing the disk 1 in the cartridge body 12 is as follows. The user grasps the stepped portion 16 of the holder 14 to which the disk 1 is pressed and is pushed into the cartridge body 12 through the receiving opening of the cartridge body 12. Immediately before completion of the mounting of the holder 14, the step 18a formed on the annular arm 18 is in contact with the inclined surface 12a. At this time, when the user pushes the holder 14 into the cartridge body 12, the step 18a is pushed toward the side wall of the cartridge body 12 by the inclined surface 12a in the state shown in Figs. The elastic pressing force of the annular arm 18 against 1) is released. Accordingly, the disk 1 is freely rotatable in the cartridge body 12 so that a spindle motor (not shown) can rotate the disk 1 and an optical pickup (not shown) is provided. The information recording surface of can be randomly accessed. In order to take out the disk 1 again, the holder 14 may be taken out of the cartridge body 12. At this time, the restraining force by the inclined surface 12a applied to the step 18a is released, and the annular arm 18 presses the disk 1 with elastic restoring force. The end of the annular arm 18 is formed with a concave surface 18b having a concave shape as can be seen in FIG. This concave surface 18b presses the disk 1 stably by guiding the disk 1 toward the center of the annular arm 18a even when the disk 1 flows up and down in the cartridge body 12. Do it.

In the present invention, since the annular arm 18 generating the elastic pressing force presses the disk 1, the annular arm 18 can be formed to a thickness approximately equal to the height of the side wall of the disk 1, so that the thickness of the holder 14 is increased. Will not increase

On the other hand, in a disc drive device for recording or reproducing a large recording medium (for example, a disc having a diameter of 120 mm), a large recording medium is recorded for reproducing and reproducing a small recording medium (for example, a disc having a diameter of 80 mm). Naturally, an elastic member such as the annular arm 18 may be installed in the adapter to be used with the medium. In this case, the user installs an elastic member for compressing the disk in the holder member for shielding the receiving opening into which the small recording medium is inserted in the adapter so that the small recording medium is always integrated with the holder member and can be attached and detached from the adapter.

As described above, the disc cartridge according to the present invention can protect the information recording surface of the disc from contamination by fingerprints and the like by integrating the disc and the holder by pressing the disc with elastic pressing force when the disc is taken out from the cartridge. Furthermore, the disc cartridge according to the present invention can improve the user's convenience when the disc is integrated with the holder so that the user can receive the disc in the cartridge or take it out.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

1 is a schematic representation of a conventional removable disk cartridge.

2 is a cross-sectional view showing a disc cartridge according to an embodiment of the present invention.

3 is a cross-sectional view showing a state in which a disk is compressed in the holder shown in FIG.

4 is a cross-sectional view showing a state immediately before mounting of the holder shown in FIG. 2;

FIG. 5 is a cross-sectional view showing a state in which mounting of the holder shown in FIG. 2 is completed. FIG.

FIG. 6 is a longitudinal cross-sectional view taken along the line "A-A '" in FIG. 5; FIG.

<Description of Symbols for Main Parts of Drawings>

1: disc 2,12: cartridge body

4: shutter 6,14: holder

12a: inclined surface 16: stepped portion

18: annular arm 18a: step

18b: concave

Claims (5)

A cartridge body provided with a disk storage space, An elastic member for pressing the disk is mounted to have a disk holder detachable to the cartridge body, The elastic member is a disk cartridge, characterized in that the disk is not separated from the holder by pressing the disk with a constant elastic pressing force when the holder is taken out from the cartridge body to the outside or accommodates the disk. The method of claim 1, The elastic member is inclined stepped jaw, The cartridge body is a disk cartridge, characterized in that the guide member is formed to be inclined to be fitted to the step. The method of claim 2, And the guide member releases the pressing force of the elastic member applied to the disk by pushing the elastic member toward the side wall when the disk holder is mounted to the cartridge body. The method of claim 1, The elastic member is a disk cartridge, characterized in that it has an annular band shape to be combined with the disk. The method of claim 1, The elastic member is a disk cartridge, characterized in that the concave surface is formed to capture the disk.