JPH05144225A - Cartridge for cd-rom single - Google Patents

Abstract

PURPOSE:To use an magneto-optical disk drive irrespective of the type of media by providing a special-purpose cartridge to a CD-ROM single, and reading data by using the drive. CONSTITUTION:A shaft end 401a of a spindle motor 401 is formed in a conical shape, and a permanent magnet 402 is mounted. At the time of mounting a CD-ROM single 403, a chucking hug 404 is attracted by a magnet 402, an a conical part of the motor 401 is inserted into a centering hole 403a of the CD- ROM single 403 so that conical part is made to abut on the edge of the hole 403a. Thus, the CD-ROM single 403 is centered and chucked. That is, a special- purpose cartridge 302 is provided to the CD-ROM to read data by using an magneto-optical disk driver, and the driver can be used irrespective of the type of media.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for applying a CD-ROM single to a magneto-optical disk drive device.

[0002]

2. Description of the Related Art In recent years, computer external recording devices based on a magneto-optical recording system have begun to be put into practical use. This device heats the recording medium to near the Curie temperature by spot-irradiating a laser beam from the optical head onto the surface of the recording medium,
Data is recorded by controlling the direction of the magnetic field generated by the magnetic head, and standardization by ISO is also in progress. The media used in this system are usually housed in a resin cartridge for protection, and equipped with a hub having a magnetic material for centering and magnetic chucking by a spindle motor. On the other hand, the CD-ROM single, which has already been put into practical use, is taken out from the protective cartridge when it is used and inserted into the drive device, and chucking is also mechanically performed. Therefore, there is no hub in the medium and there is a centering hole. Since there is only a CD-ROM in the conventional magneto-optical disk drive device
It was impossible to use a single drive, and each had to have its own drive device, which was inconvenient for the user.

[0003]

Therefore, the present invention is intended to solve such a problem, and an object of the present invention is to enable the use of a CD-ROM single in a magneto-optical disk drive device. Therefore, it is to provide a CD-ROM single cartridge.

[0004]

DISCLOSURE OF THE INVENTION CD-RO according to the present invention
The M single cartridge is (1) the CD-ROM single cartridge, which contains the CD-ROM single and can be inserted and positioned in the 3.5-inch magneto-optical disk drive device, and the CD-ROM is inserted by the spindle motor after the insertion. The structure is characterized by having a mechanism capable of single centering and chucking.

(2) In the CD-ROM single cartridge, a main body having a shutter mechanism,
It is characterized in that it comprises a lid portion rotatably connected to the body portion, and the body portion and the lid portion have a lock mechanism.

(3) In the CD-ROM single cartridge, a chucking hub having a conical portion rotatable with respect to the lid portion and a magnetic body at the tip portion is provided on the lid portion. Characterize.

[0007]

FIG. 4 is a sectional view showing an example of centering and chucking of a single CD-ROM. in this case,
An upper end portion 401a of the shaft of the spindle motor 401 has a conical shape, and a permanent magnet 402 is further installed. When the CD-ROM single 403 is installed, the chucking hub 404 is attracted by the permanent magnet 402, and the CD-
The conical portion of the spindle motor 401 enters the centering hole 403a of the ROM single 403, and the conical surface and the edge portion of the centering hole 403a come into contact with each other so that the CD-
The ROM single 403 is centered and chucked. Further, FIG. 3 shows a sectional view of an example of media centering and chucking in a 3.5-inch magneto-optical disk. 3.5 inch magneto-optical disk 3
01 is contained in a cartridge 302 and a magnetic hub 303 is attached. The cartridge 302 inserted in the magneto-optical disk drive device is loaded to a predetermined position on the spindle motor 304 side, and the 3.5-inch magneto-optical disk 301 has a centering hole 303a provided in the hub 303 and a centering shaft 304a of the spindle motor 304. Is centered, and the hub 303 is attracted to be chucked by the permanent magnet 305 installed in the spindle motor 304.

Next, FIG. 1 is a sectional view showing the case where the CD-ROM single cartridge according to the present invention is used, and FIG. 2 is a perspective view. The cartridge 101 is roughly divided into a main body portion 101a and a lid portion 101b. Main body 101a and lid 101
b is connected via a rotary hinge 102,
-After loading the ROM single 103, it is locked by the lock claw 105. A shutter 104 is attached to the main body 101a, and has a structure that opens when the cartridge 101 is inserted into the magneto-optical disk drive device. Further, a conical hub 106 for centering and chucking is attached to the lid portion 101b. The conical hub 106 is rotatably attached to the lid portion 101b and is movable in the vertical direction by a predetermined amount, but has a structure that does not come off. The center of the CD-ROM single 103 is provided with a centering hole 103a, and the conical surface of the conical hub 106 is set so that the edge of the centering hole 103a abuts. Further, the spindle motor 107 is also installed at the center of the conical hub 106.
Centering hole 1 that fits with the centering shaft 107a of
06a is provided, and the magnetic material 106b is attached to the tip.

When the cartridge 101 is inserted into the magneto-optical disk drive, the shutter 104 is opened and the cartridge 101 is loaded, the spindle motor 107
Since the permanent magnet 107b is attached to the, the magnetic material 106b is attracted by the magnetic force, the centering shaft 107a and the centering hole 106a are fitted, and the conical surface of the conical hub 106 contacts the edge of the centering hole 103a. CD-ROM for spindle motor 107
The single 103 is centered and chucked. At this time, the conical hub 106 is set so as to be in a non-contact position with respect to the lid portion 101b, and no trouble is caused even when the rotation operation is started.

[0010]

As described above, according to the present invention, C
By providing a dedicated cartridge for the D-ROM single, it becomes possible to read data using the magneto-optical disk drive device, regardless of the type of the medium (magneto-optical disk or CD-ROM single). The drive device can be used. The lock mechanism of the cartridge body and the lid and the conical hub shape are not limited to those in this embodiment.

[Brief description of drawings]

FIG. 1 is a chucking sectional view of a CD-ROM single cartridge according to the present invention.

FIG. 2 is a perspective view of a CD-ROM single cartridge according to the present invention.

FIG. 3 is a chucking sectional view of a 3.5-inch magneto-optical disk.

FIG. 4 is a chucking sectional view of a CD-ROM single.

[Explanation of symbols]

101, 302 Cartridge 101a Main body 101b Lid 102 Rotation hinge 103, 403 CD-ROM single 103a, 106a, 303a, 403a Centering hole 104 Shutter 105 Lock claw 106 Conical hub 106b Magnetic material 107, 304, 401 Spindle motor 107a, 304a Centering shaft 301 3.5-inch magneto-optical disk 303 Hub 107b, 305, 402 Permanent magnet 404 Chucking hub

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masami Yamada, 3-5 Yamato 3-chome, Suwa City, Nagano Prefecture Seiko Epson Corporation

Claims (3)

[Claims] 1. A cartridge for a CD-ROM single, which contains the CD-ROM single and can be inserted and positioned in a 3.5-inch magneto-optical disk drive, and after the insertion, the CD-ROM is driven by a spindle motor.
A cartridge for a CD-ROM single, having a structure having a mechanism for performing single centering and chucking. 2. The CD-ROM single cartridge is composed of a main body portion having a shutter mechanism and a lid portion rotatably connected to the main body portion, and the main body portion and the lid portion. The CD-ROM single cartridge according to claim 1, further comprising a lock mechanism. 3. The CD-ROM single cartridge is characterized in that a chucking hub having a conical portion rotatable with respect to the lid portion and a magnetic body at a tip portion is provided on the lid portion. The CD-ROM according to claim 1,
Single cartridge.