| 摘要 |
PROBLEM TO BE SOLVED: To more efficiently suppress the vibration of a main frame by a sub-frame. SOLUTION: In a disk drive device of the present invention, when an interval between a case 11 and a main frame 14 is elastically supported with first elastic members 13, and also an interval between the main frame 14 and a sub-frame 19 is supported with second elastic members 21 in the state that a spindle motor 16 which drives the rotation of an optical disk D and an optical pickup 18 which is freely movable in the radial direction of the optical disk D are mounted on the main frame 14, and vibration which is generated in the main frame 14 by the eccentricity of center of gravity of the disk D is absorbed by the sub-frame 19, the position Gs of the centroid of the sub-frame 19 is made to roughly coincide with the position Gm of gravity of the whole body on the main frame 14. COPYRIGHT: (C)2007,JPO&INPIT
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