Disc driving apparatus

Details Disc driving apparatus Disc driving apparatus

2005-04-12

2005-04-12

Castro, Angel (Department: 2653)

Dynamic optical information storage or retrieval

Particular cabinet structure for optical media

Tray or drawer loading or ejecting

C369S219100

Reexamination Certificate

active

06880159

ABSTRACT:
A disc driving apparatus comprises a turntable, a clamping member and a cam mechanism. A disc is to be placed on the turntable. The clamping member holds the disc between the turntable and the clamping member with a magnetic attracting force. The cam mechanism causes a relative movement between the turntable and the clamping member to move any one of them away from another thereof or move them closer to each other. The cam mechanism has a cam and a cam follower. The cam has a contour by which a variation rate of displacement of the cam follower relative to a moving amount of the cam when the turntable and the clamping member move away form each other becomes smaller than a variation rate thereof when the turntable and the clamping member move close to each other.

REFERENCES:
patent: 5737305 (1998-04-01), Kayukawa
patent: 5995468 (1999-11-01), Furukawa
patent: 6002658 (1999-12-01), Aso et al.
patent: 6496463 (2002-12-01), Ogawa et al.
patent: 6704266 (2004-03-01), Yanagiguchi
patent: 6728190 (2004-04-01), Huang et al.

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