JPH09212975A - Disk-cartridge mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a disk-cartridge mounting device which prevents a malfunction in the insertion of a disk cartridge by installing a member which prevents the insertion of the cartridge at a time when a shutter at the disk cartridge is not opened. SOLUTION: When a disk cartridge 1 is inserted into a holder 7 in a normal state, a shutter 4 is opened by a slider 11, and the insertion of the disk cartridge 1 is permitted up to a reproducing position irrespective of a stop member 12. In addition, when the disk cartridge 1 is inserted in a state that the shutter 4 is not opened for some cause, the stop member 12 comes into contact with the tip of the disk cartridge 1, and the insertion of the disk cartridge 1 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge mounting apparatus for mounting a disc cartridge having a slide shutter capable of exposing a stored disc.

[0002]

2. Description of the Related Art In a magneto-optical disc cartridge or the like, a slide shutter is provided so that a stored disc can be exposed.

The slide shutter is normally closed for protection of the disc, but when it is mounted on the reproducing apparatus, it is opened by the shutter opening / closing mechanism.

The shutter opening / closing mechanism is disclosed in, for example, Japanese Patent Laid-Open No. 2-1.
As disclosed in Japanese Patent No. 98059, a holder for guiding the insertion of a disk cartridge is provided with a slider that comes into contact with a corner portion of a shutter of the disk cartridge and moves in the opening direction of the shutter when the disk cartridge is inserted. It is configured.

In this shutter opening / closing mechanism, since the slider cannot move when the shutter is fixed and the shutter is not opened, the disk cartridge cannot be pushed any further, and the insertion of such a disk cartridge can be prohibited.

[0006]

However, in this structure, when the corner portion of the shutter of the disk cartridge is damaged, or when the shutter opening / closing mechanism itself is out of order, the disk cartridge to which the shutter is fixed is attached. I was allowed to insert it into the holder.

In recent years, optical disc apparatuses and the like have used thin pickups and miniaturizations to use pickups with a short working distance of the objective lens. Therefore, the objective lens is positioned in the disc cartridge that appears when the shutter opens. ,
If the disk cartridge with the shutter fixed as described above is allowed to be inserted, the pickup will be damaged.

[0008]

DISCLOSURE OF THE INVENTION A disk cartridge mounting apparatus of the present invention is provided with a holder for guiding insertion / removal of a disk cartridge, a shutter opening / closing mechanism for opening / closing the shutter according to insertion / removal of the disk cartridge, and a holder. When the shutter of the disc cartridge is closed, it is brought into contact with the front end of the shutter to block the shutter, and when the shutter of the disc cartridge is opened, a blocking member that allows the insertion of the disc cartridge is provided.

[0009]

Embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, (1) is a disk cartridge, and in the present invention, 90 defined by JIS X 6272.
mm rewritable type or read-only type is used.
This disc cartridge (1) is, as shown in FIG.
Magneto-optical disk (2) rotatably housed on the front and back
A shutter (4) capable of forming an access window (3) (3) exposing the air and opening and closing the access window (3) (3)
Is provided. The shutter (4) is always biased by an elastic body (not shown) in the direction of closing the access windows (3) and (3), and a corner portion slidably provided at the tip of the cartridge (1). It is linked to (5). The disc cartridge (1) has a standard thickness of 6 mm, and the exposed portion (6) which appears when the shutter (4) is opened has a thickness of 2 mm and a width of about 22 mm. Therefore, when the shutter (4) is opened, it is 2 mm thinner than the front surface and 2 mm thinner than the back surface as compared with when it is closed.

Reference numeral (7) is a holder for guiding insertion / removal of the disk cartridge (1), and guide portions (8) are formed on both sides of the holder. (9) is a shutter opening / closing mechanism that opens the shutter (4) when the disc cartridge (1) is inserted into the holder (7). The slider hole (10) is formed in the holder (7) and the slider hole (10). It is composed of a slider (11) sliding along 10) and an elastic body (not shown) for urging the slider (11) toward the insertion opening. The slider (11) is located outside the corner portion (5) when the disc cartridge (1) is inserted, and moves inward when the disc cartridge (1) is inserted, so that the corner portion (5) results. Specifically, the shutter (4) is slid.

Reference numeral (12) is a blocking member formed by bending a part of the holder (7) downward and located at a position corresponding to the exposed portion (6) of the disc cartridge (1). ) Is inserted, the shutter (4) is in contact with the tip of the disk cartridge (1) if it is closed, and if it is open, the exposed portion (6) is about 1 mm of the magneto-optical disk (2). It is formed so as to be located above.

In FIG. 3, the shutter (4) is attached to the holder (7).
The side view of the main part when the disc cartridge (1) is inserted with the disc open (1) is shown. In the figure, (13) is a spindle motor for rotating the magneto-optical disc (2), and (14) is the disc cartridge (1). Access window on the back of the car (3)
It is an optical pickup that optically reads data from a magneto-optical disk (2) via a. Although not shown, a magnetic field generator is provided above the holder (7) so as to oppose the access window (3) on the surface of the disc cartridge (1).

In the above structure, when the disc cartridge (1) is inserted into the holder (7) in a normal state, the shutter (4) is opened by the slider (11) and the disc cartridge (1) is opened regardless of the blocking member (12). ) Is allowed up to the playback position (see FIG. 3). If the disc cartridge (1) is inserted with the shutter (4) not opened for some reason, the blocking member (12) is inserted.
Comes into contact with the tip of the disc cartridge (1) to prevent the disc cartridge (1) from being inserted.

[0015]

Since the present invention is configured as described above, it is possible to prevent the disk cartridge from being mounted in the holder without the slide shutter being opened for some reason.

[Brief description of drawings]

FIG. 1 is a perspective view of a disc cartridge with a holder and a shutter closed in a disc cartridge mounting apparatus of the present invention.

FIG. 2 is a perspective view of the disc cartridge with a shutter closed.

FIG. 3 is a side sectional view of a main part of the disc cartridge mounting apparatus of the present invention.

[Explanation of symbols]

 1 disk cartridge 2 magneto-optical disk 4 shutter 5 corner 9 shutter opening / closing mechanism 12 blocking member

Claims (1)

[Claims] 1. A disc cartridge mounting apparatus for mounting a disc cartridge having a slide shutter capable of exposing a stored disc, and a holder for guiding the insertion / removal of the disc cartridge, and opening / closing the shutter according to the insertion / removal of the disc cartridge. And a shutter opening / closing mechanism that is provided in the holder, and contacts the front end of the shutter when the shutter of the disc cartridge is closed, and prevents the insertion of the disc cartridge when the shutter of the disc cartridge is opened. A disc cartridge mounting apparatus, which is provided with a blocking member for permitting it.