Patent ID: 6473390
Filing Date: 2002-10-29
Classification: G11B

Abstract:
An optical disk device for mounting an optical disk that is formed by gluing together a first optical disk and a second optical disk and has a mounting hole in a center thereof, said optical disk device comprising:a turntable, and a disk holding part provided on said turntable and adapted to receive an optical disk, a clamping member provided on part of a circumferential surface of said disk holding part and adapted to hold an optical disk by being impelled outward in a radial direction of said disk holding part when an optical disk is placed on said turntable, wherein said clamping member further comprises an upper sloping surface, a lower sloping surface, and a contact surface disposed therebetween, said contact surface being shaped to provide a surface contact with an inner circumferential surface of a mounting hole of said optical disk.