Spindle motor for optical disc player

Details Spindle motor for optical disc player Spindle motor for optical disc player

2005-10-18

2005-10-18

Chen, Tianjie (Department: 2652)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

Reexamination Certificate

active

06957442

ABSTRACT:
A spindle motor in an optical disc player includes a motor having a rotation shaft, a turntable rotating together with the rotation shaft and having a track groove having a circular shape, moving members disposed in the track groove to move along the track groove to compensate for an eccentric force, a collision and dispersion inducing unit having a height from the track groove to induce a rebounding phenomenon between the moving members to be spaced-apart from each other when the moving members are arranged in a non-uniform displacement due to a centrifugal force and a friction between the track groove and the moving members.

REFERENCES:
patent: 6295269 (2001-09-01), Takeuchi et al.
patent: 6452896 (2002-09-01), Song
patent: 6455961 (2002-09-01), Higuchi
patent: 6741544 (2004-05-01), Naka et al.
patent: 6771460 (2004-08-01), Tsuyuki et al.
patent: 2001/0000312 (2001-04-01), Kume et al.

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