| 摘要 |
PURPOSE:To absorb shock and improve vibration damping effect by a method wherein the multi-stage property with shearing deformation is given to the rubber body of the stopper of the captioned device employed for mounting a power unit for an automobile. CONSTITUTION:The vibration-proof device is installed intermediately between the power unit and a car body, and when a large vibrating input acts in the direction phi due to quick acceleration or deceleration of the vehicle or the like, the deformation in the direction of shearing is caused in the rubber body 4 coupling the 1st and 2nd members 1 and 2. By this deformation, first the gap 8 of a rubber body 5 is crushed, while the low rigidity of the rubber body 5 is maintained due to its deformation in the direction of shearing. Then, after the gap 8 is crushed, compression deformation is caused. By this compression deformation, high rigidity is maintained. Accordingly, the rise in the property of the stopper is slackened and the shock can be avoided, while the low rigidity is maintained until the stopper functions even when a relatively-large load is made to act. Thereby the vibration damping effect is obtained and thus the phenomenon of shuddering can be reduced. |
