| 摘要 |
PURPOSE: To attempt miniaturization while maintaining a condition by which a displacement can be restrained and dealed with even for a big amplitude by enclosing in an elastic stopper a variable viscid fluid having such characteristic that viscosity is increased when a shearing speed reaches a prescribed value and returned back to an original viscosity when the shearing speed becomes the prescribed value or less. CONSTITUTION: When a relative displacement and reletive speed between a first member 1 and a second member 2 are small like an usual running time, a dilatancy liquid 4 is not solidified and a vibration-proof device acts as an usual liquid enclosed vibration-proof device. While, when the relative displacement and relative speed between the first member 1 and the second member 2 are big like an uneven road surface running time, as the deformation speed of an elastic member 3 is big and the shearing speed of the dilatancy fluid 4 exceeds a critical value at the rapid acceleration/ decceleration time, the dilatancy fluid 4 is solidified and the spring constant of the vibration-proof device becomes big extremely and the amplitude of vibration is restrained. When the relative displacement and relative speed between the first member 1 and the second member 2 become small, the solidification of the fluid 4 is released and returned back to an original vibration characteristic. |
