Disk drive device with improved centering holding function

Details Disk drive device with improved centering holding function Disk drive device with improved centering holding function

2008-02-19

2011-12-06

Negron, Daniell L (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

C720S604000, C720S706000

Reexamination Certificate

active

08074240

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.

REFERENCES:
patent: 5501760 (1996-03-01), Mukawa
patent: 6208613 (2001-03-01), Iizuka
patent: 6832384 (2004-12-01), Yamaguchi
patent: 2004/0205803 (2004-10-01), Horng et al.
patent: 2006/0064712 (2006-03-01), Kim
patent: 2008/0059984 (2008-03-01), Kanzawa et al.

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