Disk clamping device

Details Disk clamping device Disk clamping device

1984-09-12

1985-04-09

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

360 97, 346137, G11B 362, G11B 1700

Patent

active

045105928

ABSTRACT:
A disk clamping device having a turntable fixedly secured at a predetermined height to a spindle. A clamper is adapted to depress the disk against the turntable. A movable ring is slidable in parallel with said spindle and a member having a conical outer wall is slidable in parallel with the spindle while being in contact therewith. A magnet is positioned by a yoke or plate to form a magnetic circuit with the magnetic flux clamping the disk. The center of the disk coincides with the center of rotation of the spindle when the disk together with the movable ring and the conical member is moved downwardly while in contact with the conical member and maintained horizontal by said movable ring. The disk is clamped at a predetermined height when it is brought into contact with the turntable.

REFERENCES:
patent: 3658347 (1972-04-01), Cheeseboro
patent: 3891796 (1975-06-01), Takahara et al.
patent: 4002826 (1977-01-01), Iemenschot
patent: 4068851 (1978-01-01), Yamamura
patent: 4340955 (1982-07-01), Elliott

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