| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration isolator having a simple configuration in which temperature-based variations of a spring characteristic and an attenuation characteristic are restricted even if a use environmental temperature of the vibration isolator changes and it has a desired stable vibration isolation function.SOLUTION: Dampers 20 are arranged between a fixed plate 11 and a movable plate 12 and near coil springs 13. Each of the dampers 20 is constituted by a holding member 21, an oscillation member 24, and a wall part 23 etc. The holding member 21 is arranged to face downward in substantial vertical orientation in respect to the lower surface of the movable plate 12. A ball magnet 22 is fixed to the extremity end of the holding member 21. The wall part 23 is arranged to face upward in substantial vertical orientation in respect to the upper surface of the fixed plate 11. To each of opposing surfaces of the wall part 23 is connected the oscillation member 24 through a viscoelastic member 26. The other end of the oscillation member 24 is arranged to face against the holding member 21. The holding member 21 is adsorbed to the opposing part 24a of the holding member by a magnetic force of the ball magnet 22 while a soft resin plate 25 is being held between them. |
