Disk clamping device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1985
Issued Date -
N/A
app pub date -
Sep 12, 1984
filing date -
Jul 5, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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