Turntable assembly having disc centering lead springs clamped between upper surface of turntable and an insert-type spring holder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 14, 2004
Grant Date -
Jun 12, 2003
app pub date -
Oct 11, 2002
filing date -
Oct 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A turntable assembly not requiring use of plastic centering hooks, enabling simplification of the mold structure, and enabling attachment of the leaf springs imparting elastic spring force in the disk centering mechanism even after fitting the center hole of the turntable over the motor shaft, wherein the turntable assembly has a motor having a projecting motor shaft and a turntable having a center hole into which the projecting portion of the motor shaft is inserted and a magnet holding groove formed at a disk hole mating hub around the center hole and holding a permanent magnet for clamping an information storage disk placed on the turntable in the magnet holding groove, the disk centering mechanism having a plurality of spring seats at spring flexing spaces formed at intervals in the circumferential direction of the disk hole mating hub 21, each of the spring seats being provided with a centering leaf spring having a vertically descending piece protruding slightly outward in the radial direction from the outer circumference of the disk hole mating hub.
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