Patent ID: 6907611
Filing Date: 2005-06-14
Classification: G11B

Abstract:
1. A clamp mechanism comprising: a turntable on which a recording medium is placed, the turntable being rotated by a rotation driving device; a holding device for holding the recording medium on the turntable; and a driving device for driving the holding device in both a clamping direction determined to clamp the recording medium on the turntable and an unclamping direction determined to unclamp the recording medium from the turntable, wherein the driving device includes a movable member configured to be driven to slide in a perpendicular direction to the turntable, the holding device being rotated in the unclamping direction when the movable member is driven to slide in the perpendicular direction to move away from the turntable and being rotated in the clamping direction when the movable member is driven to slide in the perpendicular direction to move toward the turntable, the movable member having a pressing member formed integrally with the movable member, the pressing member i) pressing the holding device so as to be rotated in the unclamping direction when the movable member is driven to slide in the perpendicular direction to move away from the turntable and ii) prohibiting the holding device from moving in the clamping direction when the rotation of the holding device in the unclamping direction is completed.