JPH06215465A - Optical disk device - Google Patents

Abstract

PURPOSE:To detect which face between A, B faces is to be recorded or reproduced under loaded state by detecting it with a sensor that which face of an optical disk in an optical disk cartridge is placed. CONSTITUTION:The optical disk cartridge 1 is inserted into the innermost part of a cartridge holder 4, a protrusion 9a provided on the sensor 9 is engaged with an engagement part 1f (hatched part), whereas nothing is sensed by the sensor 9 because of nothing in this part. Consequently, it is decided by the optical disk device 2 that the optical disk cartridge 1 is inserted under the state of performing recording and reproducing information on the A-face of the optical disk. The engagement part 1f is the part of nonexistence for all of the existing kinds of optical cartridges because of a passage for a standardized recessed part 1c of a shutter 1a of the optical disk cartridge 1 when the shutter 1a is opened.

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 device that records and reproduces information by mounting an optical disk cartridge containing optical disks capable of storing information on both sides.

[0002]

2. Description of the Related Art A conventional optical disk apparatus for recording / reproducing information by mounting an optical disk cartridge containing optical disks 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 disc cartridge is mounted on the cartridge holder while recording / reproducing information to / from the surface, the shutter of the optical disc cartridge is opened,
When the optical disk cartridge is mounted on the cartridge holder while the first shutter arm for ejecting the optical disk cartridge from the optical disk device and the recording / reproducing of information on the other storage surface (B surface) of the optical disk are mounted, A second shutter arm that opens the shutter of the optical disc cartridge and ejects the optical disc cartridge from the optical disc device; and when the shutter of the optical disc cartridge is opened by inserting the optical disc cartridge into the optical disc device,
It has a sensor for judging whether the optical disk cartridge is mounted in a state in which information is recorded / reproduced on either the B side or the B side. This sensor utilizes the tip of the protrusion in the sliding direction in which a shutter opening groove portion that is not standardized in the shutter is provided.

[0003]

The conventional optical disc apparatus as described above detects whether the optical disc cartridge is mounted in the state of recording or reproducing information on either side A or side B of the optical disc. Since the outer shape of the shutter of the optical disk cartridge used for this purpose is a part that is not standardized, there is a difference in shape depending on the manufacturer of the optical disk cartridge.
It has a drawback that it may not be possible to detect which surface is the A surface or the B surface.

[0004]

An optical disk device of the present invention comprises a cartridge holder for mounting an optical disk cartridge containing optical disks capable of storing information on both sides,
A first shutter arm that opens the shutter of the cartridge holder when the optical disk cartridge is mounted in the cartridge holder while recording and reproducing information on one storage surface of the optical disk, and the other storage surface of the optical disk. A second shutter arm that opens the shutter of the cartridge holder when the optical disk cartridge is mounted in the cartridge holder while recording and reproducing information with respect to the optical disk cartridge; and 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 recess that engages with a protrusion at the tip of the first or second shutter arm, A condition for recording and reproducing information on one storage surface When the optical disc cartridge is inserted into the cartridge holder by the above, the sensor does not detect anything, and the optical disc cartridge is inserted into the cartridge holder in a state where information is recorded / reproduced on / from the other storage surface of the optical disc. In this case, the sensor is operated when it is turned on.

[0005]

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

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 shows a state in which an optical disk cartridge is mounted in a state in which information is recorded / reproduced on the surface A of the optical disk in the embodiment of FIG. In the plan view shown in FIG. 3, (a) shows a state at the time of starting insertion, (b) shows a state at the end of insertion, and FIG. 3 shows information on the B side of the optical disc in the embodiment of FIG. 4A and 4B are plan views showing a state in which an optical disk cartridge is mounted in a state where recording and reproduction are performed, FIG. 4A showing a state at the time of starting insertion, FIG.
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 view corresponding to FIG. 2 and FIG. 3B is a view corresponding to FIG.

In FIG. 1, an optical disk cartridge 1
Stores an optical disk capable of storing information on both sides, and has a recess 1b on its front surface. When the optical disk cartridge 1 is mounted in the optical disk device 2, the shutter 1a having the concave portion 1c opens laterally to expose a part of the optical disk housed therein so that information can be recorded and reproduced.

The optical disk device 2 has a front mask 3 on its front surface, and the front mask 3 is provided with an insertion opening 3a for inserting the optical disk cartridge 1. A cartridge holder 4 for mounting the optical disc cartridge 1 is provided behind the insertion slot 3a, and the optical disc cartridge 1 is mounted on the cartridge holder 4 while recording and reproducing information on the A side of the optical disc. There are provided a shutter arm 5 for opening the shutter 1a when the optical disc cartridge 1 is opened, and a shutter arm 6 for opening the shutter 1a when the optical disc cartridge 1 is mounted while recording / reproducing information on / from the B side of the optical disc.

A projection 5a is provided at the tip of the shutter arm 5.
However, a projection 6a 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 while the information is recorded / reproduced on the B side of the optical disk and the shutter 1a is opened by the shutter arm 6, FIG. A sensor 9 is provided at a position where the contact portion 1e (hatched portion) of the shutter 1a which is adjacent to the recess 1c and covers the rib 1d to form the recess 1b shown in FIG.

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 while recording / reproducing information on / from the side A of the optical disk, as shown in FIG.
In the shutter 1a of the optical disk cartridge 1, the projection 5a at the tip of the shutter arm 5 is engaged with the recess 1c,
The shutter 1a is opened as the optical disk cartridge 1 enters the inside of the cartridge holder 4. 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 to the deepest part of the cartridge holder 4 as shown in FIG. 2 (b), the protrusion 9a provided on the sensor 9 has an engaging portion 1f (shown in FIG. 4 (a). However, the sensor 9 does not detect anything because there is nothing in this part. Therefore, the optical disc apparatus 2 determines that the optical disc cartridge 1 is inserted in a state in which information is recorded / reproduced on the A side of the optical disc. The contact portion 1f is
When the shutter 1a of the optical disc cartridge 1 is opened, it is a passage of the standardized recess 1c of the shutter 1a, and therefore, it is a region where nothing exists in all existing optical disc cartridges.

When the optical disk cartridge 1 is inserted into the cartridge holder 4 while recording / reproducing information on / from the B side of the optical disk, as shown in FIG.
In the shutter 1a of the optical disc cartridge 1, the projection 6a at the tip of the shutter arm 6 is engaged with the recess 1c,
The shutter 1a is opened as the optical disk cartridge 1 enters the inside of the cartridge holder 4. 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 deepest part of the cartridge holder 4 as shown in FIG. 3B, the protrusion 9a provided on the sensor 9 comes into contact with the contact portion 1e shown in FIG. 4B. To do. For this reason, the sensor 9 operates, and the optical disk device 2 operates in the optical disk cartridge 1
However, it is determined that the optical disc has been inserted while recording / reproducing information on the B side of the optical disc. Since the contact portion 1e is a part of the shutter 1a for covering the rib 1d that is standardized to form the concave portion 1b, it is a portion that exists in all existing types of optical disc cartridges.

In the above-described embodiment, when the optical disk cartridge 1 is inserted in a state where information is recorded / reproduced on the A side of the optical disk, the sensor does not detect anything and the information is recorded on the B side of the optical disk. The sensor is configured to operate when it is inserted in the state of performing recording / reproduction of, but the sensor operates so that it is inserted in the state of performing recording / reproduction of information on the A side of the optical disc. It can also be configured to.

[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, and the sensor can be used to select either the A surface or the B surface of the optical disk. By detecting whether or not the optical disk cartridge is mounted while recording / reproducing information on / from the surface, even if an optical disk cartridge having a different shape depending on the manufacturer is mounted, it is possible to reliably determine whether the surface is the A surface or the B surface. There is an effect that it becomes possible to detect whether or not the optical disk cartridge is mounted in a state where information is recorded / reproduced on / from the surface.

[Brief description of drawings]

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

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

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

4 is a perspective view showing a portion where the optical disk cartridge contacts the sensor in the embodiment of FIG. 1, and FIG.
3B corresponds to FIG. 3, and FIG. 3B corresponds to FIG.

[Explanation of symbols]

 1 Optical Disc Cartridge 1a Shutter 1b ・ 1c Recessed 1d Rib 1e Contact Part 1f Engagement Part 2 Optical Disc Device 3 Front Mask 3a Insertion Port 3a 4 Cartridge Holder 5 ・ 6 Shutter Arm 5a ・ 6a ・ 9a 7 ・ 8 Spring 9 Sensor

Claims (2)

[Claims] 1. A cartridge holder in which an optical disk cartridge containing optical disks capable of storing information on both sides is mounted, and the optical disk cartridge is set in the cartridge holder in a state where information is recorded / reproduced on one storage surface of the optical disk. A first shutter arm that opens a shutter of the cartridge holder when mounted, and a cartridge shutter when the optical disk cartridge is mounted in the cartridge holder in a state of recording and reproducing information on the other storage surface of the optical disk. A second shutter arm that opens a shutter and a standardization that, when the optical disk cartridge is mounted, are provided on the shutter of the optical disk cartridge and engage with a protrusion at the tip of the first or second shutter arm. Adjacent to the recess An optical disk device, comprising: a sensor provided at a position in contact with a portion to be processed. 2. A cartridge holder in which an optical disk cartridge containing optical disks capable of storing information on both sides is mounted, and the optical disk cartridge is set in the cartridge holder in a state of recording and reproducing information on one storage surface of the optical disk. A first shutter arm that opens a shutter of the cartridge holder when mounted, and a cartridge shutter when the optical disk cartridge is mounted in the cartridge holder in a state of recording and reproducing information on the other storage surface of the optical disk. A second shutter arm that opens a shutter and a standardization that, when the optical disk cartridge is mounted, are provided on the shutter of the optical disk cartridge and engage with a protrusion at the tip of the first or second shutter arm. Adjacent to the recess A sensor provided at a position in contact with the part to be touched, the sensor detects nothing when the optical disk cartridge is inserted into the cartridge holder in a state where information is recorded / reproduced on / from the one storage surface of the optical disk. The optical disk device is characterized in that 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.