LIQUID-SEALED TYPE VIBRATION-PROOF MOUNT

摘要

PURPOSE:To obtain the soft initial spring characteristic and easily constitute a liquid chamber to seal a liquid by providing a pair of airtight and elastic outer wall materials between an outer tube and a shaft member to envelop a piston member and a block member. CONSTITUTION:Since a pair of outer wall materials 5 have an independent structure as the wall material of a liquid chamber, they can be changed to a soft material or a hard material as appropriate, and those with the soft or hard initial spring characteristic can be manufactured easily. Large attenuation can be obtained for the vibration applied in the small-diameter direction of a piston member 4 in particular because volume changes are generated in the second chamber 8 and the third chamber 9 and the sealed liquid is moved via a passage 6 and the first chamber 7. When an input resulting large deformation is applied, a block member 3 and the piston member 4 perform a stopper action to absorb the energy.