Disk clamping mechanism for a disk player

Details Disk clamping mechanism for a disk player Disk clamping mechanism for a disk player

1985-09-25

1988-11-22

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

369270, G11B 5012

Patent

active

047869976

ABSTRACT:
A disk clamping mechanism for a disk player in which centering of a supporting member on a pressing member which performs a pressing operation in cooperation with a turntable is performed accurately and inexpensively. A spherical bearing member is placed in a tapered portion which is at the center of the pressing member, and contacts a bearing reception member on a lower surface of a lift member which lifts the pressing member off a disk when the disk is not being played. The pressing member is balanced on a turntable by means of a protrusion formed in a lower surface of the pressing member at its rotational center, the protrusion fitting into a corresponding recess in the rotational center of the turntable.

REFERENCES:
patent: 4502136 (1985-02-01), Rickert et al.
patent: 4514839 (1985-04-01), Eisemann
patent: 4539614 (1985-09-01), Thompson
patent: 4541086 (1985-09-01), Tanaka
patent: 4570256 (1986-02-01), Tamaru
patent: 4577248 (1986-03-01), Cantwell
patent: 4592040 (1986-05-01), Ohsaki

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