Patent ID: 6198716
Filing Date: 2001-03-06
Classification: G11B

Abstract:
A disk chucking mechanism comprising:a disk table, on which a disk provided with a center hole is put, rotated by rotary driving means;a claw member so provided as to protrude and retract from an upper surface of said disk table, said claw member for clamping the disk through the center hole at a time that the claw member protrudes, while unclamping the disk at a time that the claw member retracts;a chuck movable portion slidably provided along an axis of rotation of said disk table for causing said claw member to protrude and retract by the sliding;urging means for urging said chuck movable portion in a direction in which said claw member protrudes;pickup moving means for moving a pickup; anda chuck control mechanism moved upon being pressed by a pressing member provided in the pickup in a position where the pickup is in proximity to said disk table for sliding said chuck movable portion in a direction in which said claw member retracts.