Patent ID: 6373810
Filing Date: 2002-04-16
Classification: G11B

Abstract:
A disk driving apparatus including:a turn table having a seating portion for receiving a disk thereon, and a boss around which the center hole of the disk on the seating portion is fitted; a chucking device incorporated in the turn table and having chucking members and a biasing means, said chucking members adapted to advance out of the boss so as to chuck the disk and retreat from the boss to release the disk from the chucked state, and the biasing means adapted to apply a constant force to the chucking members in such a direction as to advance the chucking members; and a releasing means for applying a chuck-releasing force from the outside of the turn table to the chucking device so that the chucking action of the chucking device is stopped against the force applied by the biasing means.