| 摘要 |
PROBLEM TO BE SOLVED: To heighten the resonance frequency of a disk at the time when the disk is inserted to reduce the amplitude and to enable a thin shape of the disk. SOLUTION: In a disk guide mechanism for carrying in/out of a disk 11, moving means 60 and 70 by which a slide is guided in the carry-in direction of the disk such as a large diameter disk 11b are provided freely slidably to a clamper arm 30 for performing chucking of the disk such as the large diameter disk 11b. Abutting means 71a and 71b abutting against the outer peripheral part of the disk 11 are provided at the moving means 70. A locking means 41 preventing return in the disk insertion direction of the moving means 60 and 70 and the abutting means 71a and 71b after carrying-in of the disk 11 is finished is provided. The moving means 60 and 70 and the abutting means 71a and 71b slide to the clamper arm 30 either when a small diameter disk or the large diameter disk 11b is carried in. COPYRIGHT: (C)2004,JPO
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