Motor having chucking device and disk driving apparatus...

Details Motor having chucking device and disk driving apparatus... Motor having chucking device and disk driving apparatus...

2008-01-17

2010-12-07

Cao, Allen T (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

Reexamination Certificate

active

07849474

ABSTRACT:
A motor includes a chucking device for detachably holding a disk-shaped storage medium. The chucking device includes a plurality of radially outwardly biased claw members. Further, the claw members make contact with a top surface of a cover portion of a turntable when the claw members are in contact with the top edge of a central opening of the storage medium. At least one of the claw member's contact sections and the turntable's contact section is made of a material different than a material forming the remaining sections of the claw members and the remaining section of the turntable so that the static friction coefficient between the claw member's contact sections and the turntable's contact section becomes greater than the static friction coefficient between the claw members and the rest portions.

REFERENCES:
patent: 7493633 (2009-02-01), Ikemoto
patent: 7538459 (2009-05-01), Ichizaki
patent: 2005/0246729 (2005-11-01), Omori et al.
patent: 2008/0179978 (2008-07-01), Ichizaki
patent: 2009/0096303 (2009-04-01), Takaki et al.
patent: 11-306627 (1999-11-01), None
patent: 2006-48821 (2006-02-01), None
patent: 1020050095085 (2005-09-01), None
Korean Office Action dated May 27, 2009, issued in corresponding Korean Patent Application No. 10-2008-005416.

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