Patent ID: 9447838
Filing Date: 2016-09-20
CPC Classification: F16F,Y10T

Claim Text:
1. A fluid-filled vibration damping device comprising: a first mounting member; a tubular second mounting member; a main rubber elastic body elastically connecting the first and second mounting members; a tubular fitting member externally slipped around the second mounting member that is fixed to an outer peripheral face of the main rubber elastic body, the tubular fitting member being drawn and externally fitted onto the second mounting member in a fluid-tight manner so as to provide a fluid chamber whose wall is partially constituted by the main rubber elastic body and which is filled with a non-compressible fluid; a sealing rubber layer fixed to at least one of an outer peripheral face of the second mounting member and an inner peripheral face of the tubular fitting member so as to be compressed between the second mounting member and the tubular fitting member about an entire circumference; and at least one pressure-relieving lip protruding from the sealing rubber layer and extending toward openings of the second mounting member and the tubular fitting member so as to be pressed against one of the outer peripheral face of the second mounting member and the inner peripheral face of the tubular fitting member in a direction of protrusion, wherein the at least one pressure-relieving lip comprises a plurality of pressure-relieving lips that are spaced apart from each other in a circumferential direction of the second mounting member and the tubular fitting member, and wherein each of the plurality of pressure-relieving lips has, from its bottommost portion to its topmost portion closest to the opening of the tubular fitting member, a protrusion height from the sealing rubber layer that gradually increases.