| 摘要 |
PROBLEM TO BE SOLVED: To restrain a disk from being tilted by the own weight of the disk itself, using a simple configuration. SOLUTION: In this disk drive unit, a turntable 5 is provided below the disk 1, and a pressure member 9 is provided above the disk 1. The turntable 5 includes a disk mounting portion 5a which comes into contact with the disk 1. The pressure member 9 includes a pressure portion 9a which presses the lower surface of the disk 1 and rotates together with the disk 1. An aligning ring 7 presses the inner-end part of the disk 1 from below. The disk mounting portion 5a is located on the inside in the radius direction from the pressure portion 9a. COPYRIGHT: (C)2006,JPO&NCIPI
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