CHUCKING DEVICE

摘要

A chucking device holding a disk by pressing a disk center hole part by a plurality of claw bodies movably installed on a turntable in the radial direction of a hub body. The chucking device comprises elastic members energizing the claw bodies to the outer side of the hub body. The claw bodies further comprise claw parts in contact with the disk and claw side stoppers restricting the movement thereof to the outer side by the elastic members. The hub body further comprises a claw opening part allowing a claw part to be projected to the outside and a hub side stopper in contact with the claw side stopper. The chucking device is characterized in that the claw parts in a standby state in which the disk is not held by the claw parts are positioned lower than the claw parts in a recording/regenerative state in which the disk is held by the claw parts.