Disk clamping device

Details Disk clamping device Disk clamping device

1988-06-08

1989-08-01

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

360 9912, G11B 17028

Patent

active

048539244

ABSTRACT:
A disk clamping device for a compatible disk player capable of playing both compact disks and video disks in which the clamping force for the thicker video disk is greater than that for the thinner compact disk. The clamping device includes a turntable for mounting a selected one of a video disk and a compact disk, a hub for centering the disk mounted on the turntable, a clamper having a first surface for pressing the video disk and a second surface projecting in a clamping direction further than the first surface for pressing the compact disk, and a magnet constituting at least a part of the second surface of the clamper or the turntable for generating a force urging the clamper against the turntable.

REFERENCES:
patent: 3891796 (1975-06-01), Takahara et al.
patent: 4510592 (1985-04-01), Kanamara et al.
patent: 4539671 (1985-09-01), Higashihara

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