JP2928039B2 - Optical disk drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device,
In particular, the present invention relates to an optical disk apparatus for recording and reproducing information by mounting an optical disk cartridge containing an optical disk capable of storing information on both sides.

[0002]

2. Description of the Related Art A conventional optical disk apparatus for recording and reproducing information by mounting an optical disk cartridge containing an optical disk capable of storing information on both sides includes a cartridge holder for mounting the optical disk cartridge and one storage surface (A) of the optical disk. When the optical disk cartridge is mounted on the cartridge holder in a state where information is recorded / reproduced on / from the surface, the shutter of the optical disk cartridge is opened,
And a first shutter arm for performing an operation of ejecting the optical disk cartridge from the optical disk device, and when the optical disk cartridge is mounted on the cartridge holder in a state of recording and reproducing information on the other storage surface (surface B) of the optical disk, A second shutter arm for opening the shutter of the optical disk cartridge and ejecting the optical disk cartridge from the optical disk device; and a shutter for the optical disk when the optical disk cartridge is inserted into the optical disk device and the shutter of the optical disk cartridge is opened.
A sensor for judging whether the optical disk cartridge is mounted in the state of recording or reproducing information on the side B or the side B. This sensor utilizes the leading end of a slide-direction overhang provided with a shutter opening groove not standardized for the shutter.

[0003]

The above-mentioned conventional optical disk apparatus detects whether the optical disk cartridge is mounted in the state of recording or reproducing information on the A surface or the B surface of the optical disk. The outer shape of the shutter of the optical disk cartridge used for this purpose is a part that is not standardized, so there is a difference in the shape depending on the manufacturer of the optical disk cartridge.
There is a disadvantage that it may not be possible to detect which of the A surface and the B surface.

[0004]

An optical disk device according to the present invention comprises a cartridge holder for mounting an optical disk cartridge containing an optical disk capable of storing information on both sides;
A first shutter arm for opening a shutter of the cartridge holder when the optical disk cartridge is mounted on the cartridge holder in a state in which information is recorded / reproduced on / from one storage surface of the optical disk; and another storage surface of the optical disk. A second shutter arm for opening a shutter of the cartridge holder when the optical disk cartridge is mounted on the cartridge holder in a state where information is recorded / reproduced to and from the shutter of the optical disk cartridge when the optical disk cartridge is mounted And a sensor provided at a position in contact with a portion adjacent to a standardized concave portion that engages with a protrusion at the tip of the first or second shutter arm. A state for recording and reproducing information on one storage surface In the sensor when inserting said optical disc cartridge into said cartridge holder is nothing sense, the optical disk cartridge in a state in which the recording and reproduction of information with respect to the other storage surface of the optical disc is inserted into the cartridge holder The sensor operates when the sensor is turned off .

[0005]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a view showing a state in which an optical disk cartridge is mounted in the embodiment of FIG. FIG. 3A is a diagram showing a state at the start of insertion, FIG. 3B is a diagram showing a state at the end of insertion, and FIG. 3 is a plan view of the embodiment of FIG. 4A is a plan view showing a state where an optical disk cartridge is mounted in a state where recording and reproduction are performed, FIG. 4A is a view showing a state at the start of insertion, FIG.
FIGS. 3A and 3B are perspective views showing a portion where the optical disk cartridge contacts the sensor in the embodiment of FIG. 1, FIG. 3A is a diagram corresponding to FIG. 2, and FIG. 3B is a diagram corresponding to FIG.

In FIG. 1, an optical disk cartridge 1
Has an optical disk capable of storing information on both sides, and a concave portion 1b is provided on the front surface thereof. When the optical disk cartridge 1 is mounted on the optical disk device 2, the shutter 1a having the concave portion 1c opens horizontally to expose a part of the stored optical disk so that information can be recorded and reproduced.

The optical disk device 2 has a front mask 3 on the front surface, and the front mask 3 has an insertion opening 3a for inserting the optical disk cartridge 1. A cartridge holder 4 for mounting the optical disk cartridge 1 is provided behind the insertion slot 3a. The optical disk cartridge 1 is mounted on the cartridge holder 4 in a state in which information is recorded and reproduced on the A side of the optical disk. A shutter arm 5 that opens the shutter 1a when the optical disk cartridge 1 is mounted and a shutter arm 6 that opens the shutter 1a when the optical disk cartridge 1 is mounted in a state of recording and reproducing information on and from the side B of the optical disk.

A protrusion 5a is provided at the tip of the shutter arm 5.
However, a projection 6 a is provided at the tip of the shutter arm 6. The spring 7 is for returning the shutter arm 5, and the spring 8 is for returning the shutter arm 6.

When the optical disk cartridge 1 is inserted to the innermost part of the cartridge holder 4 and the shutter 1a is opened by the shutter arm 6 in a state where information is recorded / reproduced on / from the side B of the optical disk, FIG. The sensor 9 is provided at a position which covers the rib 1d to form the concave portion 1b shown in FIG. 1 and contacts the contact portion 1e (hatched portion) of the shutter 1a adjacent to the concave portion 1c.

Next, the operation of the optical disk device configured as described above will be described with reference to FIGS.

When the optical disk cartridge 1 is inserted into the cartridge holder 4 in a state where information is recorded / reproduced on / from the A side of the optical disk, as shown in FIG.
In the shutter 1a of the optical disk cartridge 1, the protrusion 5a at the tip of the shutter arm 5 is engaged with the concave portion 1c,
As the optical disk cartridge 1 enters the interior of the cartridge holder 4, the shutter 1a is opened. At this time, the spring 7 is compressed by the shutter arm 5. On the other hand, the shutter arm 6 compresses the spring 8 while sliding on the front surface of the shutter 1a at the protrusion 6a.

When the optical disk cartridge 1 is inserted as far as the innermost part of the cartridge holder 4 as shown in FIG. 2B, the projection 9a provided on the sensor 9 is engaged with the engaging portion 1f (FIG. 4A). (Hatched area), but since there is nothing in this part, the sensor 9 does not sense anything. For this reason, the optical disk device 2 determines that the optical disk cartridge 1 has been inserted in a state of recording and reproducing information on and from the side A of the optical disk. The engagement portion 1f is
When the shutter 1a of the optical disc cartridge 1 is opened, because it is the passage of the recess 1c which is standardized the shutter 1a, which is a site where none exists in all kinds of optical disk cartridges in existence.

When the optical disk cartridge 1 is inserted into the cartridge holder 4 in a state where information is recorded / reproduced on / from the side B of the optical disk, as shown in FIG.
In the shutter 1a of the optical disc cartridge 1, the protrusion 6a at the tip of the shutter arm 6 is engaged with the recess 1c,
As the optical disk cartridge 1 enters the interior of the cartridge holder 4, the shutter 1a is opened. At this time, the spring 8 is compressed by the shutter arm 6. On the other hand, the shutter arm 5 compresses the spring 7 while sliding on the front surface of the shutter 1a at the protrusion 5a.

When the optical disk cartridge 1 is inserted to the innermost part of the cartridge holder 4 as shown in FIG. 3B, the projection 9a provided on the sensor 9 comes into contact with the contact portion 1e shown in FIG. I do. As a result, the sensor 9 operates, and the optical disk device 2
Is inserted in a state in which information is recorded / reproduced on / from the side B of the optical disc. Since the contact portion 1e is a part of the shutter 1a for covering the rib 1d standardized to form the concave portion 1b, the contact portion 1e exists in all existing types of optical disk cartridges.

In the above-described embodiment, when the optical disk cartridge 1 is inserted in a state of recording and reproducing information on the side A of the optical disk, the sensor does not sense anything and the information The sensor is configured to operate when inserted in a state of performing recording / reproduction of the optical disk. However, when inserted in a state of recording / reproducing information on the A side of the optical disk, the sensor operates. Can also be configured.

[0017]

As described above, the optical disk apparatus of the present invention utilizes the fact that the standardized outer shape of the optical disk cartridge is asymmetrical in the left and right directions, and uses the sensor to determine whether the surface of the optical disk is A or B. By detecting whether the optical disk cartridge is mounted in a state where information is recorded / reproduced with respect to the surface, it is possible to reliably determine whether the surface A or the surface B is mounted even when an optical disk cartridge having a different shape is mounted between manufacturers. There is an effect that it is possible to detect whether the optical disk cartridge is mounted in a state where information is recorded / reproduced on / from the surface.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a state in which an optical disk cartridge is mounted in a state in which information is recorded / reproduced on side A of the optical disk in the embodiment of FIG. 1, and FIG. (B) is a diagram showing a state at the end of insertion.

FIG. 3 is a plan view showing a state in which an optical disk cartridge is mounted in a state in which information is recorded / reproduced on side B of the optical disk in the embodiment of FIG. 1, and FIG. (B) is a diagram showing a state at the end of insertion.

FIG. 4 is a perspective view showing a portion where the optical disc cartridge contacts the sensor in the embodiment of FIG. 1; FIG.
FIG. 4B is a diagram corresponding to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical disk cartridge 1a Shutter 1b ・ 1c Depression 1d Rib 1e Contact part 1f Engagement part 2 Optical disk device 3 Front mask 3a Insertion opening 3a 4 Cartridge holder 5.6 Shutter arm 5a ・ 6a ・ 9a 7.8 Spring 9 Sensor

Claims (1)

(57) [Claims] 1. A cartridge holder for mounting an optical disk cartridge containing an optical disk capable of storing information on both sides thereof, and said optical disk cartridge being inserted into said cartridge holder in a state of recording and reproducing information on one storage surface of said optical disk. A first shutter arm that opens a shutter of the cartridge holder when the cartridge holder is mounted; and a first shutter arm that opens and closes the optical disk cartridge when the optical disk cartridge is mounted on the cartridge holder in a state where information is recorded and reproduced on the other storage surface of the optical disk. A second shutter arm for opening a shutter, and a standardization provided on the shutter of the optical disk cartridge when the optical disk cartridge is mounted, the second shutter arm being engaged with a projection at the tip of the first or second shutter arm. Adjacent to the recess A sensor provided at a position in contact with a part to be read, and the sensor senses nothing when the optical disk cartridge is inserted into the cartridge holder in a state in which information is recorded / reproduced on / from the one storage surface of the optical disk. An optical disk device, wherein the sensor is operated when the optical disk cartridge is inserted into the cartridge holder in a state where information is recorded / reproduced on / from the other storage surface of the optical disk.