Disk clamping device

Details Disk clamping device Disk clamping device

1988-04-11

1989-06-20

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

360 9912, G11B 2504

Patent

active

048415170

ABSTRACT:
A disk clamping device for clamping either one of a disk having a small center hole, such as a compact disk, and a disk having a larger center hole, such as a video disk, to a turntable with which the diameter of the turntable can be increased to reduce the amount of bending and vibration of the disk while it is being played. A first hub for centering a disk having a small center hole is mounted on the disk drive shaft of the drive motor, while a second hub, separate from the first hub, is mounted on the other side of the disk playing position together with a clamper. The second hub has a clamping surface which is brought into contact with the surface of the disk having a small diameter hole when engaged with the disk drive shaft.

REFERENCES:
patent: 4541086 (1985-09-01), Tanaka

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