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...

2011-01-18

2011-01-18

Cao, Allen T (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

Reexamination Certificate

active

07873971

ABSTRACT:
A motor includes a chucking device to hold a disk having a central opening in a detachable manner. In the chucking device, a turntable part is arranged above a rotor holder and has a disk support surface for supporting the disk. An axially slidable cone part is arranged above the turntable part. A resilient member is axially arranged between the turntable part and the cone part upwardly biases the cone part. Further, the turntable part includes an inner table made of a metal and fixed to the shaft, and an outer table made of a resin material and fixed to an outside of the inner table. The outer table has the disk support surface and is axially spaced apart from the rotor holder in a position where the inner table and the outer table are fixed to each other.

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