| 摘要 |
PURPOSE:To eliminate a partitioning member, and thereby make a structure simpler by interposing a rubber elastic body between the outer circumferential surface of an inner member and the inner circumferential surface of the cylinder wall section of an outer member, partitioning the aforesaid space into a pressure receiving chamber and an equilibrium chamber, and thereby communicating the pressure receiving chamber with the equilibrium chamber by an orifice passage. CONSTITUTION:In an engine mount 10 for a vehicle, a circular shaped-rubber elastic body 16 is interposed between the surface of a projected block 20 consisting of an inner member 12 and the surface of a mounting sleeve 28, which are opposite to each other in the radial direction, and the rubber elastic body 16 is formed into an integral vulcanized molded product including the inner member 12 and the mounting sleeve 28. A closed end cylindrical outer fitting 14 is outwardly mounted over the integral vulcanized molded product so as to be assembled, and a thin rubber film 48 as a movable film is disposed at the opening section of the outer fitting 14, so that the rubber elastic body 16 is thereby held in the axial direction. By this constitution, a pressure receiving chamber 54 is partitioned at the side of a bottom wall section 46, an equilibrium chamber 56 is also partitioned at the opening section side, and the pressure receiving chamber 54 and the equilibrium chamber 56 are communicated with each other by an orifice passage 58. |
