| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic vibration absorber which has a small-sized, light and simple constitution and can reduce the vibration and furthermore follow the vibration of two-dimensional direction with a simple body. SOLUTION: It is characterized that a dynamic vibration absorber has a movable weight part 5, a movable part magnet 6 with the different magnet pole from the adjacent rectangular or circler magnet installed in this movable weight part 5 plurally in every direction through a back yoke 7, a fixed part magnet 9 installed through the back yoke 10 so as to face the different magnet pole from the above movable part magnet 6 towards the damping object 1, a conductor board 16 inserted in a gap 12 between the above movable part magnet 6 and the fixed part magnet 9, a movable part bearing receptacle seat 13 installed in the above movable weight part 5, a fixed part bearing receptacle seat 14 installed in the above damping object 1 and a rigid ball 15 gripped by these parts. COPYRIGHT: (C)2006,JPO&NCIPI
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