Patent ID: 9212720
Filing Date: 2015-12-15
Classification: F16F

Abstract:
1. A liquid sealed vibration isolating device comprising a first mounting device mounted on a vibration source side, a second mounting device mounted on a vibration transmission side, a main elastic body of substantially conical shape being provided between the first and second mounting devices, a liquid chamber having a portion of a wall formed with the main elastic body, a partition member for partitioning the liquid chamber into a primary liquid chamber and a secondary liquid chamber and including a frame member, a damping orifice passage for absorbing low frequency vibration, which communicates between the primary liquid chamber and the secondary liquid chamber, an elastic diaphragm portion being provided on at least a portion of the partition member and elastically deformable to absorb a change in internal pressure of the primary liquid chamber, and a stopper leg portion integrally projecting from an outer circumferential portion on the secondary liquid chamber side of the elastic diaphragm portion in the direction of the secondary liquid chamber and having a projecting end to be pressed against the frame member provided for fixing a circumference of the elastic diaphragm portion, said outer circumferential portion forming a ring-shaped groove, wherein, in addition to the damping orifice passage, a second passage that communicates between the primary liquid chamber and the secondary liquid chamber is provided in the partition member, and the elastic diaphragm portion comprises a circumferential wall located on an outer circumferential side of the ring-shaped groove and fixed on the frame member and the stopper leg portion provided on an inner circumferential side of the ring-shaped groove.