JPH0559637U - Clamp mechanism of optical recording / reproducing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an optical recording / reproducing apparatus capable of coping with diversification of information. [Structure] A rotor 13, which is driven integrally with a spindle shaft 10 to rotate by a motor and supports an information storage disk,
14 and a guide member 16 having a conical portion 16b which is supported on a concentric circle of the rotor so as to be able to move up and down via a spring 17 and which positions the center of the first information storage disk.
A disc retainer 20 for retaining the first information storage disc on the rotor 14 and a guide member 16 provided on the rotor 13.
And the attraction magnet 19 which attracts the hub portion of the second information storage disk when the center of the second information storage disk is positioned by the spindle shaft 10 by lowering the. [Effect] Plural types of discs having different disc shapes can be clamped by one clamping mechanism.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clamp mechanism of an optical recording / reproducing apparatus capable of sharing different types of information storage disks such as a CD-ROM (read-only storage medium using a compact disk) and a magneto-optical disk.

[0002]

[Prior Art]

 In the past, CD-ROMs were read using a dedicated drive device, and magneto-optical disks were also read, written, or erased using a dedicated drive device.

[0003]

[Problems to be solved by the device]

 Such conventional CD-ROM and magneto-optical disk drive devices cannot be used in common because the methods are different and the shape of the disk medium and the clamp mechanism are different. As described above, since the CD-ROM and the magneto-optical disk are not compatible with each other, both data cannot be processed or concentrated by one device, and there is a problem that it cannot cope with diversification of information. .. Therefore, the present invention aims to solve the above problems.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention relates to a rotor that is driven by a motor integrally with a spindle shaft to support rotation of an information storage disk, and a rotor that is concentrically mounted on the rotor so as to be lifted and lowered through a spring. A guide member having a conical portion for centering the information storage disk, a disk retainer for pressing the first information storage disk onto the rotor, and a guide member provided on the rotor for lowering the guide member. The present invention is configured to include a suction magnet that attracts the hub portion of the second information storage disk when the center of the information storage disk is positioned by the spindle shaft.

[0005]

[Action]

 According to the clamp mechanism of the optical recording / reproducing apparatus having such a structure, when the first disc is clamped, the disc is placed on the rotor, and the conical portion of the guide member performs central positioning of the disc to hold the disc. Holds the disc on the rotor. When clamping the second disc, lower the guide member against the spring, fit the center hole of the hub part to the spindle shaft for center positioning, and attract the hub part with the attraction magnet. Clamp the disc with. Since a plurality of types of discs having different types of discs can be clamped by one clamp mechanism, it can be used for a device in which a plurality of types of discs are commonly operated.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing an embodiment of a clamp mechanism of an optical recording / reproducing apparatus according to the present invention. In FIG. 1, reference numeral 10 is a spindle shaft rotatably supported by a stator 11, and a cylindrical rotor 13 is fixedly provided on the spindle shaft 10. A support member 14 having a support surface 14a for supporting the disk is provided on the outer side of the rotor 13 via a screw fitting (S portion in the drawing). A motor (not shown) is provided between the stator 11 and the rotor 13, and the spindle shaft 10, the rotor 13 and the support member 14 are integrally driven to rotate by the operation of the motor.

A cylindrical guide member 16 is provided between the rotor 13 and the support member 14 so as to be able to move up and down, and the guide member 16 is constantly pressed by the spring force of the spring 17 in the upward and upward directions in the figure. ing. The guide member 16 has its flange portion 16a abutted against the stepped portion 14b of the support member 14 so that the guide member 16 is prevented from further rising. An attraction magnet 19 is provided on the upper side of the rotor 13. A conical portion 16b is formed at the upper end of the guide member 16 in the figure. A disc retainer 20 is provided above the support member 14 and the guide member 16 in the figure, and the disc retainer 20 is rotatably held by an arm 22 which vertically rotates about a left end outside the figure as a fulcrum. .

Next, the operation of this embodiment will be described. As shown in FIG. 2, when the CD-ROM 25 (first information storage disk) is clamped, the center position of the CD-ROM 25 is determined by fitting the center hole 25a of the CD-ROM 25 into the conical portion 16b of the guide member 16. Then, by rotating the arm 22 downward in the drawing, the disc retainer 20 is pressed against the CD-ROM 25, and the lower surface of the CD-ROM 25 is pressed against the support surface 14a of the support member 14 and clamped.

As shown in FIG. 3, when the magneto-optical disk 30 (second information storage disk) is clamped, the hub member 30 a is pressed downward in the drawing to move the guide member 16 to the spring 17. By pressing down against the spring force and pressing the lower surface of the magneto-optical disk 30 against the supporting surface 14a of the supporting member 14, the lower surface of the hub portion 30a is attracted and clamped by the attracting magnet 19.

[0010]

[Effect of the device]

 As described above, according to the present invention, when the first disc is clamped, the disc is placed on the rotor, the center of the disc is positioned by the conical portion of the guide member, and the disc is pressed by the disc holder onto the rotor. Hold down. When clamping the second disc, lower the guide member against the spring, fit the center hole of the hub part to the spindle shaft for center positioning, and attract the hub part with the attraction magnet. Clamp the disc with. Since a plurality of types of discs having different types of discs can be clamped by a single clamping mechanism in this manner, it can be used in a device in which a plurality of types of discs are operated in common.

Further, in the embodiment of the present invention, it becomes possible to use the CD-ROM and the magneto-optical disk in one drive unit. For example, the data of the CD-ROM can be arbitrarily read and temporarily stored in the computer. Then, it is possible to process and edit the data by an operation such as writing the temporarily stored data to a magneto-optical disk, and it is possible to cope with the diversification of information.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a clamp mechanism of an optical recording / reproducing apparatus according to the present invention.

FIG. 2 is a sectional view showing an operation of a clamp mechanism of the optical recording / reproducing apparatus shown in FIG.

FIG. 3 is a sectional view showing another operation of the clamp mechanism of the optical recording / reproducing apparatus shown in FIG.

[Explanation of symbols]

 10 spindle shaft 11 stator 13 rotor 14 support member 14a support surface 14b step 16 guide member 16a flange 16b conical 17 spring 19 attraction magnet 20 disc retainer 22 arm 25 CD-ROM 30 magneto-optical disc 30a hub

Claims (1)

[Scope of utility model registration request] 1. A rotor driven to rotate by a motor integrally with a spindle shaft, and a rotor for supporting an information storage disk, and a first information storage disk centered on a concentric circle of the rotor so as to be vertically movable via a spring. A guide member having a conical portion for performing the above, a disc retainer for retaining the first information storage disc on the rotor, and a guide member provided on the rotor for lowering to center the second information storage disc. A clamping mechanism for an optical recording / reproducing apparatus, comprising: a suction magnet for attracting the hub portion of the second information storage disk when the spindle shaft is used.