JPH05314639A - Optical disk device - Google Patents

Abstract

PURPOSE:To provide an optical disk device which corresponds to all present optical disk cartridges and is capable of detecting both the A face and B face of an optical disk medium. CONSTITUTION:This device is provided with shutter arms a5, b6 inserted into a recessed part a 1b provided on the shutter 1a of the optical disk cartridge 1 and position detectors 9, 10 detecting the positions of the shutter arms a5, b6 for the A face and B face of the optical disk cartridge 1 respectively. When the shutter 1a of the optical disk cartridge 1 is opened, by detecting the difference between the operation sizes of the shutter arm inserted into the recessed part a1b of the shutter 1a, the A face and B face of the inserted optical disk cartridge 1, that is, the A face and B face of an optical disk medium is discriminated. Thus, by utilizing only the part of the standard size of the optical disk cartridge, all present optical disk cartridges are corresponded.

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, and more particularly to an A surface B surface detection mechanism of an optical disk cartridge.

[0002]

2. Description of the Related Art A conventional A-side and B-side detecting mechanism of an optical disk cartridge of an optical disk device will be described with reference to the drawings.

FIGS. 4A and 4B are operation explanatory views of the A-side and B-side detecting mechanisms when the optical disk cartridge is inserted into the conventional optical disk device.

A side B of the conventional optical disk cartridge
As shown in FIGS. 4A and 4B, the surface detection mechanism includes a cartridge holder b20 for housing the optical disk cartridge 1 in the optical disk device, and an A surface side of the optical disk cartridge 1 [FIG. )] Is opened in the optical disk device, the shutter 1a of the optical disk cartridge 1 is opened, and the shutter arm c2 attached to the cartridge holder b20 is operated so as to eject the optical disk cartridge 1 from the optical disk device.
1 and the side B of the optical disc cartridge 1 [FIG.
(B)] opens the shutter 1a of the optical disc cartridge 1 when it is inserted into the optical disc device, and also the shutter arm d22 attached to the cartridge holder b20 so as to eject the optical disc cartridge 1 from the optical disc device. When the optical disk cartridge 1 is inserted into the optical disk device and the shutter 1a is opened, the shutter 1a of the optical disk cartridge 1 is inserted only when the optical disk cartridge 1 is inserted on the A side by utilizing the left-right asymmetry of the shape of the optical disk cartridge 1. It is composed of a detector 23 for detecting the presence and a detector 24 for detecting the presence of the shutter 1a of the optical disc cartridge 1 only when the optical disc cartridge 1 is inserted on the B side.

When the optical disc cartridge 1 is inserted into the optical disc device, the detectors 23 and 24 detect the A side and B side of the optical disc cartridge 1.

[0006]

The above-mentioned conventional optical disc apparatus detects the A side and B side of the optical disc cartridge, and when detecting the A side and the B side of the optical disc cartridge, the shape of the optical disc cartridge is left and right when the shutter is opened. Since the asymmetry was used, in an optical disk cartridge that includes many non-standardized parts and has many differences in shape depending on the manufacturer, design a detection mechanism that can detect the A side and B side of all existing optical disk cartridges. Very difficult to do.

An object of the present invention is to detect a difference in operating size between the A-side shutter arm and the B-side shutter arm by utilizing a recess provided in the shutter when the shutter of the optical disk cartridge is opened. As a result, the above-mentioned drawbacks are eliminated, and the A side B of the inserted optical disk cartridge is
An object is to provide an optical disc device that detects a surface.

[0008]

According to the present invention, an optical disk device is provided in which an optical disk cartridge having a shutter for holding an optical disk carrier and having a partly opened shutter for writing / reading information on the optical disk carrier is inserted. In an optical disk device having a mechanism for detecting the surfaces A and B of an optical disk cartridge indicating the usage surfaces A and B of an optical disk carrier, a cartridge holder for housing the optical disk cartridge in the optical disk device and an A surface side of the optical disk cartridge are When the optical disc cartridge is inserted into the optical disc device, the shutter of the optical disc cartridge is opened, and the shutter arm A attached to the cartridge holder so that the optical disc cartridge is ejected from the optical disc device, and the B side of the optical disc cartridge is the optical disc. The shutter arm B attached to the cartridge holder so that the shutter of the optical disc cartridge is opened and the optical disc cartridge is ejected from the optical disc device when it is inserted into the device. Shutter arm A or shutter arm B provided on the shutter of the optical disc cartridge when the shutter is opened.
The shutter arm A and the shutter arm B are formed by utilizing the recesses of predetermined dimensions for opening the shutter by
And a position detector for determining whether the optical disk cartridge is inserted into the optical disk device on the A side or the B side by detecting the difference in position.

[0009]

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

FIG. 1 is a block diagram showing the insertion of an optical disk cartridge into an optical disk device according to an embodiment of the present invention. FIGS. 2A, 2B and 2C show the optical disk cartridge of the optical disk device shown in FIG. 3 is an operation explanatory diagram when the A side is inserted, and FIGS. 3A, 3B, and 3C are operation explanatory diagrams when the B side of the optical disc cartridge is inserted into the optical disc device of FIG.

In FIG. 1, this embodiment comprises an optical disk cartridge 1 and an optical disk device 2.

The optical disk cartridge 1 has a recess a1.
b, and a shutter 1a provided with a recess b1c is attached.

The shutter 1a is for opening a part of the optical disk cartridge 1 when the optical disk cartridge 1 is inserted into the optical disk device 2 so that information can be written / read on / from the optical disk carrier.

A front mask 3 is attached to the entire surface of the optical disk device 2, and the front mask 3 is provided with an insertion opening 3a for inserting the optical disk cartridge 1. A cartridge holder a4 for accommodating the optical disc cartridge 1 is located at the rear of the insertion opening 3a, and a shutter provided on the optical disc cartridge 1 when the side A of the optical disc cartridge 1 is inserted into the cartridge holder a4. 1a, a shutter arm a5 for opening the shutter 1a, a shutter arm b6 for opening the shutter 1a provided on the optical disc cartridge 1 when the side B of the optical disc cartridge 1 is inserted, and a projection provided on the shutter arm a5. The portion a5a and the light shielding plate a5b, the protrusion b6a and the light shielding plate b6b provided on the shutter arm b6, the spring 7 for returning the shutter arm a5, the spring 8 for returning the shutter arm b6, and the light shielding plate a5b. The shutter arm a5 is defined by light shielding The position detector 9 for detecting that the shutter arm b6 is in the prescribed position by the light shielding by the light shielding plate b6b, and the position detector 9 and the position detector 10 are attached. And a circuit board 11 that is provided.

Next, the operation of the optical disk device of this embodiment will be described with reference to the drawings.

First, the case where the side A of the optical disc cartridge 1 is inserted into the optical disc device will be described.

When the side A of the optical disc cartridge 1 is inserted through the insertion opening 3a of the front mask 3, FIG.
As shown in FIG.
a is a projection a5a of the shutter arm a5 in the recess b1c.
The shutter arm a5 compresses the spring 7, and at the same time, the shutter arm b6 compresses the spring 8 while sliding the protrusion b6a on the side edge of the shutter 1a. As shown in FIG. 2B, when the optical disk cartridge 1 is further pushed in and the shutter arm b6 moves to a specified position, the position detector 10 operates by the light blocking of the light blocking plate b6b, and A of the optical disk cartridge 1 It is determined that the face side has been inserted. At this time, the light shield plate a5b of the shutter arm a5 does not reach the operating position of the position detector 9 because the protrusion a5a is delayed by the amount that the protrusion a5a is inserted into the recess b1c of the shutter 1a. After that, when the optical disk cartridge 1 is further pushed in, the light shielding plate a5b of the shutter arm a5 passes through the operating position of the position detector 9, and the position detector 9 operates. When the optical disc cartridge 1 is further pushed in, the optical disc cartridge 1 is inserted to the innermost part of the cartridge holder a4 as shown in FIG. 2C, and the insertion of the optical disc cartridge 1 is completed.

Next, the case where the B side of the optical disc cartridge 1 is inserted into the optical disc device will be described.

When the optical disc cartridge 1 is inserted through the insertion opening 3a of the front mask 3 on the side B, as shown in FIG. 3A, the shutter 1a of the optical disc cartridge 1 is inserted.
Is released by the shutter arm b6 by inserting the projection b6a of the shutter arm b6 into the recess b1c, and the shutter arm b6 compresses the spring 8 while the shutter arm a5 slides the projection a5a on the side edge of the shutter 1a. While compressing the spring 7. As shown in FIG. 3B, when the optical disk cartridge 1 is further pushed in and the shutter arm a5 moves to a specified position, the position detector 9 operates by blocking the light from the light shielding plate a5b, and It is determined that the B side is inserted. At this time, the light shield plate b of the shutter arm b6
6b is delayed by the amount by which the protrusion b6a is inserted into the recess b1c of the shutter 1a, and thus does not reach the operating position of the position detector 10. After that, when the optical disk cartridge 1 is further pushed in, the light shielding plate b6b of the shutter arm b6 passes through the operating position of the position detector 10, and the position detector 10 operates. Further optical disc cartridge 1
When is pushed, the optical disc cartridge 1 is inserted to the innermost part of the cartridge holder a4 as shown in FIG. 3C, and the insertion of the optical disc cartridge 1 is completed.

[0020]

As described above, in the optical disk device of the present invention, when the shutter of the optical disk cartridge is opened, the standard size recessed portion provided in the shutter is used, and the shutter arm for the A surface and the B surface are used. By detecting the difference in the operating dimensions from the shutter arm for use, the A side B side of the inserted optical disc cartridge, that is, the A side B side of the optical disc medium can be discriminated, and the A side B side of all the existing optical disc cartridges. Is effective.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing insertion of an optical disc cartridge into an optical disc device according to an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram when the side A of the optical disc cartridge is inserted into the optical disc device of FIG.

FIG. 3 is an operation explanatory diagram when the side B of the optical disc cartridge is inserted into the optical disc device of FIG.

FIG. 4 is an operation explanatory view of the A side and B side detection mechanism when an optical disc cartridge is inserted into a conventional optical disc device.

[Explanation of reference numerals] 1 optical disk cartridge 1a shutter 1b concave part a 1c concave part b 2 optical disk device 3 front mask 3a insertion port 4 cartridge holder a 5 shutter arm a 5a protruding part a 5b light shielding plate a 6 shutter arm b 6a protruding part b 6b Light-shielding plate b 7,8 Spring 9,10 Position detector 11 Circuit board 20 Cartridge holder b 21 Shutter arm c 22 Shutter arm d 23,24 Detector

Claims (1)

[Claims] 1. A use surface A and B of the optical disc carrier when an optical disc cartridge having a shutter that partially holds the optical disc carrier is inserted so that information can be written / read on the optical disc carrier when the optical disc carrier is inserted. And a cartridge holder for accommodating the optical disc cartridge in the optical disc device, and the A face side of the optical disc cartridge is inserted into the optical disc device. The shutter arm A is attached to the cartridge holder so that the shutter of the optical disc cartridge is opened and the optical disc cartridge is ejected from the optical disc device when the optical disc cartridge is operated. The shutter arm B attached to the cartridge holder so as to open the shutter of the optical disc cartridge when the optical disc device is inserted into the optical disc device and eject the optical disc cartridge from the optical disc device; and the shutter arm A. Alternatively, when the shutter arm B opens the shutter, a concave portion having a predetermined size is provided on the shutter of the optical disk cartridge to open the shutter by the shutter arm A or the shutter arm B. A position detector for determining whether the optical disk cartridge is inserted into the optical disk device on the A side or the B side by detecting the difference in position between the shutter arm A and the shutter arm B using the position detector. And an optical device characterized by having Disk device.