JP2003030949A - Disk cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk cartridge which enables cost reduction for a drive device. SOLUTION: When the disk cartridge 10 is inserted into the drive device (in the direction of arrow D1) while a groove part 1408 engages a misinsertion preventing projection part 20 of the drive device, a case 14 is moved along the length, while the misinsertion preventing projecting part 20 engages the part of a shutter 16 and then the shutter 16 is moved from its closure position to a 1st or 2nd opening position (in the direction of arrow D2).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory diagram for explaining the operation of a shutter of a conventional disc cartridge. The disc cartridge 50 includes a recording medium (not shown), a case 52,
And a shutter 54. The recording medium has a recording surface on which information can be recorded and / or reproduced on both the surface 2 and the other surface in the thickness direction. The case 52 has a thickness larger than that of the recording medium, a length along the loading / unloading direction with respect to the drive device, and a width orthogonal to the loading / unloading direction. The case 52 is provided with openings (not shown) on both sides in the thickness direction at intermediate positions in the width direction. The shutter 54 is provided to open and close each of the openings,
The shutter 54 has a closing position for closing each of the openings,
A first open position in which each opening is retracted in one of the width directions to open each opening, and a second opening position in which each opening is retracted to the other in the width direction to open each opening. It is provided so as to be movable to and from the open position. The shutter 54 is biased so as to be located at the closed position.

The drive device includes the shutter 54.
There is provided a shutter moving mechanism 60 that is engaged with the shutter 54 to move the shutter 54 in the width direction. The shutter moving mechanism 60 includes a lever 600 that can be engaged with and disengaged from the shutter 54.
2 and swinging means (not shown) for swinging the lever 6002 around the shaft portion 6004 in conjunction with movement of the case 52 of the disc cartridge 50 inserted in the drive device in the length direction. Is equipped with.

With this structure, when the disk cartridge 50 is inserted into the drive device (direction of arrow A), the lever 6002 is engaged with the shutter 54, and the case 52 is moved in the length direction. The shutter 54 is moved from the closed position to the first or second open position by swinging the lever 6002 in conjunction with the movement of the shutter to the direction (arrow B direction).

[0005]

As described above, in the conventional disc cartridge 50, the moving direction when the disc cartridge 50 is inserted into the driver device and the moving direction of the shutter 54 are orthogonal to each other. The shutter moving mechanism for opening the shutter 54 tends to be complicated, which causes a cost increase of the drive device. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a disk cartridge capable of reducing the cost of a drive device.

[0006]

In order to achieve the above object, the disk cartridge of the present invention has a recording surface on which information can be recorded and / or reproduced on both one surface and the other surface in the thickness direction. A recording medium and a case for accommodating the recording medium, wherein the disc cartridge is inserted into and removed from a drive device to record and / or reproduce the information, the case being more than the recording medium. A large thickness, a length along the loading / unloading direction with respect to the drive device, and a width orthogonal to the loading / unloading direction,
Openings are provided on both sides in the thickness direction of the case at intermediate portions in the length direction, and shutters for opening and closing the openings on both sides of the case are provided, and the shutter closes the respective openings. A closed position, a first open position that retreats from each of the openings in one of the lengthwise directions to open each of the openings, and a retreat from each of the openings to the other of the lengthwise directions in each of the openings A second opening position for opening the portion, and a biasing means for biasing the shutter so as to be located at the closing position. When the disk cartridge is inserted into the drive device, The shutter is moved from the closed position to the first or second position by moving the case in the lengthwise direction in a state where an engagement portion provided in the drive device is engaged with the location of the shutter. Characterized in that it is configured to be moved to the release position.

Therefore, according to the present invention, when the disc cartridge is inserted into the drive device, the case has the long length with the engagement portion provided in the drive device engaged with the position of the shutter. By moving the shutter in the vertical direction, the shutter is moved from the closed position to the first or second open position.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. 1 is an external perspective view of a disk cartridge according to an embodiment of the present invention, FIG. 2A is a plan view of the disk cartridge according to an embodiment of the present invention, and FIG. 2B is the opposite side of FIG. 2A. FIG. 3 is a plan view showing a state in which the disc cartridge is viewed from FIG. 3, and FIG. 3 is a sectional view taken along the line AA in FIG.

As shown in FIGS. 2 (A), (B) and FIG.
The disk cartridge 10 includes a recording medium 12, a case 14, and a shutter 16. The disc cartridge 10 is configured to be inserted into and removed from a drive device (not shown) to record and / or reproduce the information. The recording medium 12 is, for example, an optical disk including an optical phase change disk and a magneto-optical disk, or a magnetic disk, and has a disk shape, and information is recorded on both the one surface 1202 and the other surface 1204 in the thickness direction. A recording surface capable of recording and / or reproducing is formed.

The case 14 has a thickness D larger than that of the recording medium 12, a length L along the loading / unloading direction with respect to the drive device, and a width W orthogonal to the loading / unloading direction. Then, it is formed into a flat rectangular plate shape. Case 1
4 includes both surfaces in the thickness D direction, that is, the surface 1401,
At 1401, the openings 14 are formed at the middle portions in the length direction L, respectively.
02 is provided. On both sides of the case 14 in the width direction, side surfaces 1404, 1 extending linearly in the length direction.
406 are respectively formed, and the one side surface 1404 is provided with a groove portion 1408 linearly extending in the length direction. The edge portion 1408 is provided with the drive device, as will be described later.
It is configured to be engageable with 0 (engagement portion).

The shutter 16 has the openings 140.
2 is provided to open and close, and the shutter 16 includes a main body plate portion 1602 that faces each opening 1402 of both surfaces 1401 and 1401 of the case 14, and these two main body plate portions 1602.
And a connecting plate portion 1604 for connecting. The shutter 16 has a closed position (shown by a solid line in FIGS. 2A and 2B) that closes the openings 1402 by the body plate 1602, and the body plate 1602 makes the openings 1 open.
A first open position in which the opening 1402 is opened by retracting from one side in the length direction, and the body plate portion 16;
02 is provided so as to be movable from each of the openings 1402 to a second open position in which the opening 1402 is retracted to the other in the length direction to open each of the openings 1402. The case 14
An urging unit (not shown) for urging the shutter 16 so as to be located at the closed position, and the shutter 16 are provided inside.
A drop-out preventing means for preventing the drop-out from the case 14 is provided. Both sides 1401, 1 of the case 14
A rectangular concave portion 1408 having a thickness smaller than that of other portions is formed on the moving range of the shutter 16 and the edge portion of the concave portion 1408 is brought into contact with the edge portion of the shutter 16 to form a shutter. It is configured such that the 16 movement ranges are restricted.

Next, the operation will be described with reference to FIGS. 1, 2A, 2B and 3. As shown in FIG. 1, the side surface 1404 of the case 14 faces the erroneous insertion prevention convex portion 20 of the drive device, that is, the groove portion 1408 is engaged with the erroneous insertion prevention convex portion 20 of the drive device. In this case, the disc cartridge 10 can be inserted into the drive device. On the other hand, when the side surface 1406 of the case 14 faces the erroneous insertion preventing convex portion 20 of the drive device, that is, when the groove portion 1408 does not engage with the erroneous insertion preventing convex portion 20, The protrusion 20 for preventing incorrect insertion is the case 14
It becomes impossible to insert the disc cartridge 10 into the drive device by abutting against.

As shown in FIG. 1, when the disc cartridge 10 is inserted into the drive device (in the direction of arrow D1) while the groove portion 1408 is engaged with the erroneous insertion preventing convex portion 20 of the drive device, the error is caused. Insertion prevention protrusion 2
When the case 14 is moved in the length direction in a state where 0 is engaged with the position of the shutter 16, the shutter 16 is moved from the closed position to the first or second open position ( (Direction of arrow D2). The posture when the disc cartridge 10 is inserted into the drive device is the posture shown in FIG. 1 and the posture in which the front and back of the disc cartridge 10 are reversed from this posture, that is, the surfaces 1202 and 1204 of the recording medium 12 are reversed. With a stance
It is possible to have one posture, which allows the recording medium 12
Recording and / or reproduction can be performed on both sides of the surfaces 1202 and 1204.

As described above, according to the present embodiment, when the disc cartridge 10 is inserted into the drive device, the erroneous insertion preventing convex portion 20 provided in the drive device is provided at the position of the shutter 16. With it engaged with
When the case 14 is moved in the length direction, the shutter 16 is moved from the closed position to the first or second open position. Therefore, it is necessary to provide a complicated mechanism for opening the shutter 16. This is advantageous in reducing the cost of the drive device.

In the present embodiment, the shutter 1
Although the erroneous insertion preventing convex portion 20 is used as the engaging portion that engages with 6, the engaging portion may be provided separately from the erroneous insertion preventing convex portion 20.

[0016]

As described above, according to the present invention,
Since it is not necessary to provide a complicated mechanism for opening the shutter of the disc cartridge, the cost of the drive device can be reduced.

[Brief description of drawings]

FIG. 1 is an external perspective view of a disk cartridge according to an embodiment of the present invention.

FIG. 2A is a plan view of the disc cartridge according to the embodiment of the present invention, and FIG. 2B is a plan view showing a state in which the disc cartridge is viewed from the opposite side to FIG.

FIG. 3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an explanatory diagram illustrating an operation of a shutter of a conventional disc cartridge.

[Explanation of symbols]

10 ... Disk cartridge, 12 ... Recording medium, 1
4 ... Case, 16 ... Shutter, 1202, 1204
...... Recording medium surface (recording surface) 1402 ...... Aperture, 2
0: Convex part (engagement part) for preventing incorrect insertion.

Claims (5)

[Claims] 1. A recording medium having a recording surface on which information can be recorded and / or reproduced on both one surface and the other surface in the thickness direction, and a case for accommodating the recording medium, A disc cartridge in which the information is recorded and / or reproduced by being loaded / unloaded to / from a drive device, wherein the case has a thickness larger than that of the recording medium and a length along a loading / unloading direction with respect to the drive device. A width that is orthogonal to the loading / unloading direction, an opening is provided at each intermediate portion in the length direction on both sides in the thickness direction of the case, and the openings on both sides of the case are opened and closed. A shutter is provided, and the shutter has a closed position that closes each of the openings,
A first open position in which each opening is retracted to one side in the lengthwise direction to open each opening, and a first open position in which each opening is retracted to the other in the lengthwise direction to open each opening. A urging means is provided movably over the second open position and urging the shutter to be located in the closed position, and when the disc cartridge is inserted into the drive device, the drive device is provided. By moving the case in the length direction with the provided engaging portion engaged with the location of the shutter, the shutter is moved from the closed position to the first or second open position. A disk cartridge, which is characterized in that: 2. A side surface extending linearly in the length direction is formed on both sides of the case in the width direction, and a groove portion linearly extending in the length direction is provided on the one side surface. The disc cartridge can be inserted into the drive device when the groove portion engages with the erroneous insertion preventing convex portion provided in the drive device, and the groove portion is erroneously provided in the drive device. 2. The disk cartridge according to claim 1, wherein the disk cartridge is disabled when it is not engaged with the insertion preventing convex portion. 3. The disk cartridge according to claim 2, wherein the engaging portion is formed of the erroneous insertion preventing convex portion. 4. The disk cartridge according to claim 1, wherein the recording medium is one of an optical disk and a magnetic disk. 5. The disk cartridge according to claim 4, wherein the optical disk includes an optical phase change disk and a magneto-optical disk.