Disk drive device with improved centering holding function
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United States of America Patent
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-
Dec 6, 2011
Grant Date -
Aug 21, 2008
app pub date -
Feb 19, 2008
filing date -
Feb 20, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A disc drive device able to increase the number of plastic flexible cantilever beams and improve a centering holding function of a disc to enable handling of high speed revolution, that is, a disc drive device having a plastic turntable mounted on a shaft of a spindle motor, wherein this turntable has a disc hole engagement projection provided with a ring-shaped projection and a plurality of centering portions which extend from this ring-shaped projection outwardly in a diametrical direction and have guide surfaces from which an edge of a disc hole easily slides off, a disc carrying portion, through holes formed defined between adjoining centering portions, and flexible cantilever beams extending in the through holes.
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