Patent ID: 7857293
Filing Date: 2010-12-28
Classification: F16F,Y10T

Abstract:
1. A fluid filled type vibration damping device comprising a first mounting member; a second mounting member of tubular shape, the first mounting member being disposed on a side of one opening of the second mounting member; a main rubber elastic body elastically connecting the first mounting member and the second mounting member; a flexible film by which an other opening of the second mounting member is sealed off fluid-tightly, thereby forming between opposing faces of the main rubber elastic body and the flexible film a fluid chamber in which a non-compressible fluid is sealed; and a partition member supported by the second mounting member, with the fluid chamber divided by the partition member into a pressure-receiving chamber whose wall is partially defined by the main rubber elastic body and an equilibrium chamber whose wall is partially defined by the flexible film, and with an orifice passage connecting the pressure-receiving chamber and the equilibrium chamber being formed, wherein: the partition member comprises a first member and a second member superposed together in an axial direction of the second mounting member; a locking projection is formed on one of the first member and the second member and a locking hole is formed on an other, with the locking projection being inserted through the locking hole to effect locking so as to constitute a locking mechanism for holding the first member and the second member in a superposed state; outer circumferential faces of the first member and the second member held in the superposed state by the locking mechanism are fastened fitting into the second mounting member via a seal rubber layer covering an inner circumferential face of a tubular wall portion of the second mounting member by constricting an diameter of the tubular wall portion; and the first member or the second member in which the locking hole has been formed thereon includes a cover portion that covers an opening of the locking hole from a side thereof to which the locking projection projects.