JPH0831072A - Continuous driving device for plurality of disk recording medium - Google Patents

Abstract

PURPOSE:To continuously drive disks having different inner diameters by making a conventionally needed notched part of a disk tray unnecessary because of the movement of an optical block to the disk tray increasing the strength of the disk tray and providing an attachable/detachable clamper in each disk tray. CONSTITUTION:Of a plurality of disk trays 18a to 18e rotated around a shaft 20, the tray 18a housing a disk to be reproduced is rotated. An optical block 21 having an optical pickup 23, a motor 28 for driving and rotating a disk and a turntable 29 is moved in parallel to the shaft 20 and brought close to this tray 18a, a clamper 19a attachably/detachably provided in the tray 18a is attracted by a magnet fixed to the turntabe 29 and the disk is held and fixed between the turntable 29 and the clamper 19a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously driving a plurality of disc-shaped recording media such as CDs and laser disks.

[0002]

2. Description of the Related Art Conventionally, a device shown in FIGS. 10 to 13 is known as a device for continuously driving a plurality of disks. In these drawings, reference numeral 1 is a disk mounting portion, which is composed of disk trays 2a to 2e that can be increased or decreased according to the number of disks 16 used.
These disc trays 2a to 2e are provided so as to be rotatable about a shaft 3, and the disc tray levers 2a1 to 2e1 (2c1 to 2e1) about the shaft 3.
(Not shown) is rotated to rotate the disc 16 stored in the corresponding disc tray 2a to 2e.
Are moved on the central axis of the turntable 12. Figure 10
Then, when the disc tray 2a is rotated,
1 and 12 show a state in which the disc tray 2b is rotated.

In continuous driving, first, the disc tray in which the disc 16 to be recorded or reproduced is stored, for example, the disc tray 2b as shown in FIGS. 11 and 12, is rotated, and in this state, the disc 16 is moved up and down. Lift the lifter 14. With this, the clamper 13
The disk 16 lifted by the ascends.
By further raising the lifter 14, as shown in FIG.
As shown in, the disc 16 is pressed onto the turntable 12 by the repulsive force of the compression coil spring 15 located between the lifter 14 and the clamper 13. In such a process, the cutout portions 2a2 to 2e2 (2c) of the disc trays 2a to 2e are narrower than the width W2 of the lifter 14.
2 to 2e2 (not shown) must have a large width W1. In this state, the disk 16 is rotated by the spindle motor 7, and the optical pickup 6
Is driven along the shaft 8 by the sled motor 9 via the rack 6a and the pinion 10,
A signal is recorded at 6 or a signal is reproduced from the disc.

To stop the recording or reproduction, contrary to the above process, first, the lifter 14 is lowered to separate the disc 16 from the turntable 12, and the lowered position of the lifter 14 is set among the disc trays 2a to 2e. , 2b is returned to the height before being rotated and the disc tray is rotated by rotating, for example, 2b1 of the tray levers 2a1 to 2e1 about the shaft 3 in the opposite direction. 2b and the disk 16 housed therein returns to the initial position. Further, in the case of continuous driving, for example, the disc tray accommodating the disc to be reproduced is rotated and the above-described operation is repeated.

Incidentally, in FIGS. 10 to 13, reference numeral 2a
Denoted by 3 and 2b3 are disc recesses provided in the disc trays 2a and 2b, respectively. Such recesses are also provided in the other desk trays 2c to 2e.
Reference numeral 4 is an optical block, which is composed of a traverse chassis 5, the optical pickup 6 mounted on the chassis, a spindle motor 7, a shaft 8, a sled motor 9, a pinion 10, a turntable 12, and the like. Reference numerals 11a and 11b are guide holders for fixing the shaft 8 to the traverse chassis 5.

[0006]

SUMMARY OF THE INVENTION In the above-mentioned conventional plural disk continuous drive device, the lifter is driven according to the number of disks to be used, and the disks are placed on the clamper which moves with the movement of the lifter. In this state, the disc is moved to the turntable. This operation has a problem in that since the moving amount of the lifter and the disk increases as the number of disks increases, the mechanism for holding the disk and moving the lifter becomes complicated. Also, in order to secure a moving space for the lifter,
It is necessary to provide a notch in the disc tray. There is a problem that the strength of the disc tray is reduced by providing the cutout portion. Further, in the above-mentioned conventional one, since a single clamper is used, it is possible to continuously drive a specific disc such as a CD, but continuously drive discs having different inner diameters such as a CD and an LD. I couldn't.

The present invention has been made in view of the above problems. Since the optical block is moved according to the number of discs, the amount of movement of the disc as described above can be reduced and the disc tray can be turned off. You can increase the strength of the disc tray without the need for cutouts.
Since the moving amount of each disk can be reduced, the disk clamping mechanism can be simplified, and further,
It is an object of the present invention to provide a continuous drive device for a plurality of discs, in which different types of discs having different inner diameters can be continuously driven because a clamper can be attached to and detached from the disc tray. .

[0008]

SUMMARY OF THE INVENTION To solve the above problems and to achieve the above object, a continuous drive device for a plurality of disk-shaped recording media according to the present invention provides information continuously to a plurality of disk-shaped recording media. In a continuous drive device for a plurality of disc-shaped recording media used in a device for recording or continuously reproducing information from the medium, it is rotated about the same axis at a position sufficiently deviated from the center. A plurality of stacked disc trays, a pickup for recording information on a disc-shaped recording medium or reproducing information from the disc-shaped recording medium, and a motor and a turn for driving and rotating the disc-shaped recording medium. A traverse block that has a table and can move parallel to the axis, a clamper that is detachably attached to the disc tray, and fixed to the turntable. A magnet sandwiching the disk-shaped recording medium housed in the disc tray between the turntable and the clamper by sucking the clamper, and among the plurality of disc trays described above by a starting operation. , A single disc tray is rotated, and in this state, the traverse block is moved and brought closer to the disc tray, and the disc-shaped recording medium is sandwiched between the clamper attracted by the magnet and the turntable. It is characterized by doing so.

[0009]

As described above, a single disc tray selected from a plurality of disc trays is rotated about the shaft by the starting operation. In this state, the traverse block approaches the rotated disc tray, the clamper of the disc tray is attracted by the magnet, and the disc is clamped between the clamper and the turntable. As described above, since the traverse block is moved with respect to the disc tray, the notch portion as in the conventional disc tray is not required, and thus the disc tray can have sufficient strength. Further, since the disc tray is provided with a detachable clamper, it is possible to continuously drive discs of different types by selecting this clamper.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described. In these drawings, reference numeral 17 is a disc mounting portion, which is composed of a plurality of disc trays 18a to 18e. These disc trays 18a to 18e are in a stacked state,
It is rotatable about the shaft 20 at a portion that is sufficiently deviated from the central portion. Each of these disc trays 1
8a to 18e are plates 31 near the center thereof.
And a part in which the clampers 19a to 19e are combined is detachably attached. Here, the clamper 19
Of a to 19e, 19c to 19e are not shown. Also, as the disc tray, 18a to 18e
3 to 5 in which any of the above is not specified, the clamper is indicated by reference numeral 19, and in FIGS. 6 to 8 in which the disc tray is not specified in the same manner, different types (compared to the discs in FIGS. A clamper for discs (having different inner diameters) is indicated by reference numeral 32.

Reference numeral 21 is an optical block, which includes an optical pickup 23 mounted on the traverse chassis 22, a shaft 24, a sled motor 25, a spindle motor 28, a turntable 29, a magnet 30, and the like. The shaft 24 has guide holders 27a and 27b.
The optical pickup 23 is slidably attached to the shaft 24, and the pickup 23 is slidable in the radial direction of the disc 33. A pinion 26 is fixed to the drive shaft of the sled motor 25,
The optical pickup 2 is driven by the sled motor 25 through the rack 23a meshed with the pinion 26.
3 is driven. The turntable 29 is fixed to the drive shaft of the spindle motor 28, and the magnet 30 is fixed to the turntable 29.

By a starting operation, the optical block 21 is moved to the vicinity of the disk 33 to be recorded or reproduced by a known means, and then the disk mounting portion 17 is provided.
Of the disk trays 18a to 18e of
The disc tray lever 18a1 of a is rotated about the shaft 20. As a result, the disc tray 18a reaches the center axis of the turntable 29. This state is shown in FIGS. In the state shown in FIG. 3, the optical block 21 is attached to the disk 3
Move it closer to 3. This movement causes the turntable 29 to move to the disk 33 as shown in FIG.
Is fitted in the center hole of the. Then, when the magnet 30 attracts the clamper 19, the disk 33 is sandwiched and fixed between the turntable 29 and the clamper 19.

In this state, the spindle motor 28 rotates so that the disk 33 also rotates. Then, the optical pickup 23 drives the sled motor 25 to move in the direction of the arrow D to record information on the disc 33 or reproduce recorded information on the disc 33. By the way, at the time of reproduction, the pickup 23 uses the information recorded on the disk 33 as a basis for the rack 2
3a, the thread motor 25 through the pinion 26
The recording information is tracked by the rotation control of the above, and the rotation control of the spindle motor 28 is also performed to keep the rotation speed of the disk 33 constant. After the recording or reproduction is completed, the optical block 21 is pulled up from the state of FIG. 4 and the turntable 29, the disc 33 and the clamper 19 are separated from each other. When the disc 33 is placed on the disc tray 18a, the disc lever 18a1 is rotated in the direction of arrow E about the shaft 20 to return the disc tray 18a to its original position. The disk 33 is continuously driven by repeating the above-described operation of moving and bringing the optical block 21 close to the disk 33 to be recorded or reproduced as described above.

Although the clamper 19 is used in FIGS. 3 to 5, when continuously driving the disks 33 including those having different center holes, the clampers of the disk trays for accommodating the different disks are described above. Clamper 1
As shown in FIGS. 6 to 8, the clamper 32 is replaced with a clamper 32 that matches the different center holes. In FIG. 2,
As shown in FIG. 1, instead of rotating the disc tray 18a, the disc tray 18b is rotated. In the above figures, reference numeral 18b1 is a disc tray lever of the disc tray 18b, and has the same action as the disc tray lever 18a1 of the disc tray 18a. Such disc tray levers are used for the other disc trays 18c to 18e, respectively.
It is also provided in. Further, 18a2 and 18b2 are recesses for storing the disks of the disk trays 18a and 18b, respectively, and such recesses are also provided in the other disk trays 18c to 18e, respectively.

In the above embodiment, the apparatus for continuously driving the disc trays 18a to 18e in the vertically stacked state has been described. However, as shown in FIG. Can also be implemented. Note that, in FIG. 9, the same reference numerals as those in FIG. 1 indicate the same parts, and thus detailed description thereof will be omitted. Also,
In each of the above embodiments, the case where five disks are continuously driven has been described, but if any number of disks is two or more,
Continuous driving is possible.

[0016]

As described above, according to the present invention, a plurality of disc-shaped recording media (discs 33) are used for an apparatus for continuously recording or reproducing information from the medium. In the continuous drive device for the disk-shaped recording medium, the same shaft 20 is provided at a position sufficiently deviated from the center.
A plurality of stacked disk trays 18a to 18e that can be rotated around the optical disk, and a pickup such as an optical pickup 23 that records information on the disc-shaped recording medium or reproduces information from the disc-shaped recording medium. A traverse block such as an optical block 21 having a motor 28 and a turntable 29 for driving and rotating the disc-shaped recording medium and capable of moving in parallel with the shaft 20 is detachably provided on the disc tray. The clampers 19a to 19e, 19, 32 and the turntable 29 are fixed to the clampers 19a to 19e.
A magnet 30 is provided between the turntable 29 and the clampers 19a to 19e, 19 and 32 for attracting the discs 18a to 18e to attract the discs 18a to 18e. , A single disc tray of the plurality of disc trays is rotated by a starting operation, and in this state, the traverse block is moved to approach the disc tray,
The disk-shaped recording medium is sandwiched between the clamper attracted by the magnet and the turntable.

As described above, by providing the disk tray 18a and the like with the clamper 19a and the like, respectively, the clamp mechanism can be simplified and the drive mechanism can be downsized. Further, since the clamper is detachably attached to each of the disc trays, it is possible to continuously drive different kinds of disc-shaped recording media having different inner diameters.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional side view of an essential part showing an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional side view of an essential part showing an embodiment of the present invention.

FIG. 5 is an enlarged vertical cross-sectional side view of a main part showing an embodiment of the present invention.

FIG. 6 is a vertical sectional side view of an essential part showing an embodiment of the present invention.

FIG. 7 is a vertical cross-sectional side view of essential parts showing an embodiment of the present invention.

FIG. 8 is an enlarged vertical cross-sectional side view of a main part showing an embodiment of the present invention.

FIG. 9 is a perspective view showing another embodiment of the present invention.

FIG. 10 is a perspective view showing a conventional example.

FIG. 11 is a perspective view showing a conventional example.

FIG. 12 is a vertical cross-sectional side view of a main part showing a conventional example.

FIG. 13 is a vertical cross-sectional side view of a main part showing a conventional example.

[Explanation of symbols]

17 Disc mounting portion 18a, 18b, 18c, 18d, 18e Disc tray 18a1, 18b1 Disc tray lever 18a2, 18b2 Recessed portion 19, 19a, 19b, 32 Clamper 20 Shaft 21 Optical block 22 Traverse chassis 23 Optical pickup 23a Rack 24 Shaft 25 Thread Motor 26 Pinion 27a, 27b Guide holder 28 Spindle motor 29 Turntable 30 Magnet 31 Plate 33 Disc

Claims (1)

[Claims] 1. A continuous drive device for a plurality of disc-shaped recording media, which is used in a device for continuously recording information on or reproducing information from a plurality of disc-shaped recording media, wherein Multiple disc trays in a stacked state that can be rotated about the same axis at a sufficiently deviated portion, and record information on or reproduce information from the disc-shaped recording medium. A traverse block that has a pickup, a motor that drives and rotates this disc-shaped recording medium, and a turntable, and that can move parallel to the axis, a clamper that is detachably attached to the disc tray, and the turntable. It is fixed on the disc tray by sucking the clamper between the turntable and the clamper. And a magnet sandwiching the disc-shaped recording medium which is, among the plurality of disc tray described above by the starting operation,
A single disc tray is rotated, and in this state, the traverse block is moved and brought closer to this disc tray, and the disc-shaped recording medium is sandwiched between the clamper attracted by the magnet and the turntable. A continuous drive device for a plurality of disc-shaped recording media.