JPH11167783A - Carrtridge and method and device for disk recording/ reproducing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartridge and a method and a device for disk recording/ reproducing capable of performing recording/reproducing simultaneously by a plurality of pickups by using a conventional pickup. SOLUTION: A cartridge 10 is provided with a shutter 12 in a side face, a first opening part through which a bar member 24 is inserted, a lid in a side face opposite the side face of the first opening part and a second opening part through which a disk is inserted/pulled out. As to a method and a device for disk recording/reproducing, the bar member 24 is inserted from the side face of the cartridge 10 at the time of disk recording/reproducing, and a disk placed in the cartridge 10 is pushed out and driven. According to the present invention, without reducing the mechanical strength of the cartridge 10, a plurality of recording/reproducing operations are performed simultaneously by a conventional pickup.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cartridge, a disk recording / reproducing method, and a disk recording / reproducing apparatus.
In particular, the present invention relates to a cartridge capable of simultaneously recording / reproducing with a plurality of pickups, a disk recording / reproducing method, and a disk recording / reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, an optical disk capable of recording and reproducing data in a field has been housed in a cartridge in order to prevent dust and the like from adhering to the disk surface during operation. At the time of recording / reproduction, a shutter of a window (opening) provided on one side of the cartridge is opened, an optical pickup is inserted into the window, and the objective lens is brought close to the disk surface to perform focusing and tracking.

On the other hand, in a conventional video / audio editing system using a VTR, a well-known editing technique called A / B roll may be performed. This A / B roll is 1
In this technique, two locations A and B in the individual material images are reproduced at the same time, and the mode is gradually switched from A to B. VT
When R is used, a tape in which a material is duplicated is prepared in advance, and A and B are simultaneously reproduced using two VTRs.

[0004]

When a system for recording and editing video / audio using the above-described optical disk and editing the disk is considered, if the optical disk is provided with two optical pickups in principle, Simultaneously, two images A and B can be reproduced. Therefore, when performing the A / B roll, it is not necessary to duplicate a disk or tape having the same contents. However, in the conventional optical disc reproducing apparatus, it is necessary to insert the pickup into the window of the cartridge.
In order to insert individual pickups, it is necessary to enlarge the window or reduce the size of the pickup. However, when the window is enlarged, the mechanical strength of the cartridge is reduced, and the pickup needs to incorporate a lens, a focus coil, a tracking coil and the like at a minimum, and there is a problem that miniaturization is limited. . SUMMARY OF THE INVENTION It is an object of the present invention to provide a cartridge, a disk recording / reproducing method and apparatus which can solve the above-mentioned problems of the prior art and use a conventional pickup and can record / reproduce with a plurality of pickups at the same time. is there.

[0005]

A cartridge according to the present invention has a shutter on a side surface, has a first opening into which a rod-shaped member can be inserted, and faces a side surface provided with the first opening. It has a lid on the side surface and a second opening through which a disk can be taken in and out. Also,
A disk recording / reproducing method and apparatus according to the present invention is characterized in that a rod-shaped member is inserted from a side surface of a cartridge during recording or reproduction of a disk, and a disk contained in the cartridge is pushed out. According to the present invention, an opening for inserting a rod-shaped member and an opening for inserting and removing a disk are provided on the side surface of the cartridge, and the disk is pushed out of the cartridge by the rod-shaped member and driven in the disk recording / reproducing apparatus. A plurality of recording / reproducing operations can be simultaneously performed with a conventional pickup without lowering the mechanical strength of the recording medium.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a main part of a cartridge and a disk recording / reproducing apparatus of the present invention. The cartridge 10 is a case in which an optical disk is built, and a first opening 15 for inserting a rod-shaped member is provided on a side surface of the cartridge 10.
Further, a first shutter 11 having a function of a lid is provided on the outside thereof. Normally, when the cartridge 10 is not inserted into the apparatus, the first opening 15
Is closed by a shutter 11 urged by a spring or the like to prevent dust from entering.

On the side opposite to the side having the first opening, there is provided a second opening for loading and unloading a disk, and a lid for covering the second opening is provided in front of the opening. A lid 13 as a member is provided. The lid 13 is normally urged by a spring or the like or closed by a lock mechanism when the cartridge 10 is not inserted into the apparatus, thereby preventing dust from entering.

On the top surface of the cartridge 10, there is provided a second shutter 12 which acts as a lid for covering a third opening for inserting the optical pickup. In the case of an ordinary recording / reproducing apparatus having one pickup, in addition to performing recording / reproducing by taking out a disk from the cartridge 10 by a method described later, in the case of an apparatus having a small space such as a camera-integrated recording / reproducing apparatus In this case, recording / reproducing can be performed by inserting an optical pickup from the third opening.

Next, the configuration of the disk recording / reproducing apparatus and the operation when a cartridge is inserted into the disk recording / reproducing apparatus and a loading operation is performed will be described. The lower right view of FIG. 1 is a perspective view when the cartridge 10 is mounted on the tray 20 protruding from the front of the apparatus. In the case of this embodiment, the first opening 15 (the first shutter 1
The cartridge 10 is mounted so that 1) is on the left side.

FIG. 2 shows the cartridge 1 during loading.
FIG. 7 is an explanatory diagram showing a moving state of 0. FIG. 2A shows a state where a cartridge 10 having a built-in disk is mounted on a tray 20 protruding from a disk recording / reproducing apparatus 30 of a front loading system.

FIG. 1B is a perspective view and FIG. 2B is a perspective view and a top view when the tray 20 on which the cartridge 10 is mounted is drawn into the apparatus (Y direction) by a tray driving mechanism (not shown). is there. When the tray 20 is pulled into the apparatus, the lever 23 that advances relatively to the tray 20 engages with the projection of the second first shutter 11, and the shutter 11 moves forward against the spring. Go to Then, the position of the opening provided in the shutter 11 and the position of the first opening 15 of the cartridge 10 overlap, and
Openings are opened.

When the second lever 21A engages with the end of the lid 13 and rotates 90 degrees to the position of 21B, the lid 13 is opened and the disc can be taken in and out. At this time, if a lock mechanism is adopted,
Whether the lock is released with the engagement of the second lever 21 or
Alternatively, a lock release mechanism (not shown) is provided.

FIG. 2C shows a state where the tray 20 on which the cartridge 10 is mounted is moved on the roller 22 in the X direction. With this movement, the rod-shaped member 24
Is inserted into the cartridge 10 from the first opening 15 and pushes the disk inside from the second opening to the opposite side. The extruded disk falls on the motor 25 or the motor 25 moves up, and the disk is rotatably held by a known chucking operation. Further, since there is no cartridge 10, a plurality of optical pickups (not shown) can be arranged at arbitrary positions, and the disk can be accessed at the same time.

FIG. 2D is a top view showing the structure of a second embodiment of the disk recording / reproducing apparatus. This example is
Instead of moving the cartridge 10 in the X direction in the apparatus, the bar-shaped member 24 is moved in the -X direction (the direction opposite to the cartridge). This eliminates the need to move the tray in the X direction, and simplifies the mechanism. In addition, simultaneously with moving the cartridge 10 in the X direction, the bar-shaped member 24 may be moved in the −X direction to push out the disk. In this case, the sum of the movement distances of the two may be about the width of the cartridge.

With the above configuration and operation, the disk is taken out of the cartridge, and simultaneous access by a plurality of pickups becomes possible. Note that cartridge 1
When taking out 0 from the apparatus, the disc is stored in the cartridge 10 by the operation reverse to the above-described loading.

FIG. 3 is a perspective view showing a state in which the disk 31 taken out of the cartridge 10 is chucked by the driving device including the motor 25, and the two optical pickups 40 and 41 are simultaneously accessing. Disk 3
1 is pushed out by the rod-shaped member 24, dropped or moved on the driving device, and chucked. The positions of the optical pickups can be respectively set at arbitrary positions as long as the two pickups do not touch each other when they access the innermost circumference at the same time. For example, as shown in FIG. 3, the trajectories of the two pickups may be arranged so as to form a straight line, or may be arranged so as to form an obtuse angle, a right angle, or an acute angle.

FIG. 4A is a top view showing the configuration of a third embodiment of the cartridge 10 and the disk recording / reproducing apparatus 30. In the third embodiment, the second shutter 12 of the cartridge 10 in the first embodiment is
Of the shutter 11. That is, the shutter 12 for closing the third opening for inserting the optical pickup has a structure that also opens and closes the side surface of the cartridge 10, and the first side on which the rod-shaped member can be inserted is provided on the side surface on which the shutter 12 is provided. Is provided. Further, a second opening through which a disc can be taken in and out is provided on a side opposite to the side having the opening.

When the cartridge 10 is pulled into the apparatus 30, the shutter 12 is moved by a well-known mechanism (not shown).
Is moved to open the third opening on the upper surface and the first opening on the side surface. Also, the lid (13) covering the second opening on the opposing side surface can be opened. The rod-shaped member 50 is arranged at a position corresponding to the opening on the side surface.

When the tray 20 on which the cartridge 10 is mounted is further moved rearward (Y direction), the rod-shaped member 5 is moved.
0 pushes the disk 31 in the cartridge 10, and the disk 31 is removed from the cartridge 10. With the above configuration, the number of parts constituting the cartridge can be reduced as compared with the first embodiment.

FIG. 4B is a top view showing the configuration of a fourth embodiment of the cartridge 10 and the disk recording / reproducing apparatus 30. In this example, the drive is performed in a state where the disk 31 is not completely removed from the cartridge 10. That is, in order to perform chucking and pickup access, it is sufficient that about 2/3 of the disk 31 is exposed. The cartridge 31 is configured to rotate without touching the cartridge 10. With this configuration, the moving distance of the tray 20 can be reduced, and the size of the apparatus can be further reduced.

Although the embodiment has been described above, the following modifications are also conceivable. In the example,
Although an example in which the present invention is applied to a front loading type recording / reproducing apparatus is disclosed, the present invention discloses an arbitrary loading type such as an apparatus for vertically inserting a disk or an apparatus for opening a top cover and installing a cartridge. Applicable to the device.

[0022]

As described above, the cartridge of the present invention has a shutter on the side surface, has the first opening into which the rod-shaped member can be inserted, and has the first opening and the side provided with the first opening. Opposite side surfaces have a lid and a second opening through which a disc can be taken in and out. Further, the disk recording / reproducing method and apparatus of the present invention include the steps of:
Push out the disc contained in the cartridge. Therefore, according to the present invention, since the disk is pushed out of the cartridge by the rod-shaped member and driven, a plurality of recording / reproducing operations can be simultaneously performed by the conventional pickup without lowering the mechanical strength of the cartridge, and copying can be performed. A without
/ B roll becomes possible. In addition, in the case of an apparatus that performs recording and reproduction with one pickup, there is also an effect that the disk can be driven while being housed in the cartridge as in the related art.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a main part of a cartridge and a disk recording / reproducing apparatus of the present invention.

FIG. 2 is an explanatory diagram showing a movement state of a cartridge during loading.

FIG. 3 is a perspective view showing a state where a disk taken out of a cartridge is chucked and two optical pickups are simultaneously accessing.

FIG. 4 is a top view showing the configuration of another embodiment of a cartridge and a disk recording / reproducing apparatus.

[Explanation of symbols]

10 cartridge, 11 second shutter, 12
First shutter, 13 lid, 15 second opening, 20 tray, 21 second lever, 22 roller, 23 first lever, 24, 50 rod member, 25
... Motor, 30 ... Disc recording / reproducing device, 31 ... Disc, 40, 41 ... Optical pickup

Claims (5)

[Claims] 1. A disk having a shutter on a side surface, a first opening portion into which a rod-shaped member can be inserted, and a lid on a side surface opposed to the side surface provided with the first opening portion. A second opening through which the cartridge can be taken in and out. 2. A disk recording / reproducing method comprising inserting a rod-shaped member from the side of a cartridge during recording or reproduction of a disk and pushing out a disk contained in the cartridge. 3. The disk recording / reproducing method according to claim 2, wherein the rod member is inserted into a side surface of the cartridge by moving the cartridge in the direction of the rod member. 4. A disk recording / reproducing apparatus comprising a disk take-out means for pushing out a disk by inserting a rod-shaped member into a side surface of a cartridge. 5. The disk removing means includes a moving means for moving the cartridge in the direction of the rod-shaped member, and moving the cartridge in the direction of the rod-shaped member by the moving means, whereby the rod-shaped member is moved to the side surface of the cartridge. 5. The disk recording / reproducing apparatus according to claim 4, wherein the apparatus is inserted.