Disc centering device for a disc playback device

Details Disc centering device for a disc playback device Disc centering device for a disc playback device

1986-06-03

1988-03-08

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

G11B 2504

Patent

active

047303000

ABSTRACT:
In a disc playback device of a type in which a turntable is connected to a disc motor shaft, a disc centering device comprises at least three disc centering members provided in the turntable substantially concentrically with the disc motor shaft and separately moveably in the radial direction of the turntable, the centering members being capable of engaging a central opening of a disc, and urging means provided in the turntable for urging the centering members radially outwardly of the turntable. The centering members engaged in the central opening of the disc work in association with the urging means to position the disc concentrically with the disc motor shaft.

REFERENCES:
patent: 4358843 (1982-11-01), Rager
patent: 4514839 (1985-04-01), Eisemann
patent: 4562570 (1985-12-01), Denton

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