Turntable brake for a disc player

Details Turntable brake for a disc player Turntable brake for a disc player

1993-09-09

1995-02-07

Tupper, Robert S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

369268, 360 9908, G11B 17028

Patent

active

053880943

ABSTRACT:
The present invention relates to a turntable brake for a disc player capable of preventing a turntable from rotating when a disc is improperly loaded on the turntable. In accordance with the invention, the turntable brake which employs first and second magnets is provided. When the disc is correctly loaded on the turntable, two magnets are directly contacted with each other, thereby permitting the rotation of the turntable. When the disc is improperly loaded on the turntable, two magnets are separated from each other, thereby preventing the turntable from rotating.

REFERENCES:
patent: 3343636 (1967-09-01), Donelan et al.
patent: 3803351 (1974-04-01), Pedersen et al.
patent: 3936056 (1976-02-01), Breyfogle, III et al.
patent: 4477894 (1984-10-01), Clurman
patent: 4485465 (1984-11-01), Kirschner
patent: 4562563 (1985-12-01), Arets et al.
patent: 5040164 (1991-08-01), Liu

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