Patent ID: 7827572

Claim:
A disk-clamping device comprising: a turntable for mounting a disk fit on an output rotation shaft of a motor for rotationally driving the disk; clamp pawls for clamping the disk rotatably assembled on the turntable, and project and pull in through a plurality of windows formed on the turntable; a rotating and elevating member which is disposed on a backside of the turntable so that the rotating and elevating member can synchronously rotate with the turntable and ascend/descend with respect thereto, and which, when it goes up, causes the clamp pawls to project and rotate through the windows in a direction of clamping the disk, and when it goes down, causes the clamp pawls to pull in into the windows; an urging member which pushes up and urges the rotating and elevating member; and a clamp-releasing lever, which moves the rotating and elevating member in a direction of pushing down the member against an urging force of the urging member and in a direction of releasing the push down, wherein the clamp-releasing lever is arranged to be driven by power of a driving motor moving the turntable to a reproducing position and a retracted position.