Patent ID: 8596621
Filing Date: 2013-12-03
Classification: F16F

Abstract:
1. A liquid-sealed type vibration isolator, comprising: a first fixture; a cylindrical second fixture; a vibration-isolating base member formed of a rubbery elastic material for coupling the first fixture and the second fixture; a diaphragm formed of a rubbery elastic membrane which is mounted to the second fixture and defines a liquid-sealed chamber between the vibration-isolating base member and itself; a partitioning member configured to partition the liquid-sealed chamber into a first liquid chamber on the side of the vibration-isolating base member and a second liquid chamber on the side of the diaphragm, and an orifice configured to communicate the first liquid chamber and the second liquid chamber; wherein the partitioning member comprises: wherein the elastic wall is provided with a plurality of depressions in the circumferential direction on at least one of front and back wall surfaces of the elastic wall in an elastic wall portion to be held between the high compression holding portions, thereby having thin low-stiffness portions discontinuously in the circumferential direction in the elastic wall portion.