| 摘要 |
PROBLEM TO BE SOLVED: To provide dampers filled with viscous fluid capable of contributing to reduction in the size of a disk device and achieving a sufficient vibration damping effect with respect to relative displacement in all directions. SOLUTION: Since closed vessels 16 have a thinner shape compared with conventional ones, mounting spaces of the dampers 15 filled with viscous fluid 10 are reduced and the disk device 19 can be miniaturized. Since expanded/contracted bellows face parts 18 are provided in bottom parts 17b, the bottom parts 17b can be easily deformed, so as to promote stirring of the viscous fluid 10 and achieve the vibration damping effect due to viscous resistance. When a mechanical chassis 4 is relatively displaced with respect to a case body 7, inside mounting parts 17e are interlocked and outer cylindrical parts 17a, the bottom parts 17b and inner cylindrical parts 17c are deformed, so as to stir the viscous fluid 10. Therefore, even when stirring cylindrical parts projecting to inside of the closed vessels in conventional cases are not provided, the vibration damping effect by the stirring of the viscous fluid 10 can be achieved. COPYRIGHT: (C)2007,JPO&INPIT |
