초록 ▼

A fluid-filled elastic mount wherein a fluid-tight space defined by two mounting members, an elastic body and a flexible diaphragm is divided by a partition member into pressure-receiving and equilibrium chambers communicating with each other through at least one orifice passage, and through a rotar

A fluid-filled elastic mount wherein a fluid-tight space defined by two mounting members, an elastic body and a flexible diaphragm is divided by a partition member into pressure-receiving and equilibrium chambers communicating with each other through at least one orifice passage, and through a rotary valve which is accommodated in a valve hole in the partition member such that the rotary valve is rotatable in sliding contact with a sliding surface of the valve hole. The valve has a cutout communicating with the equilibrium chamber, and a valve portion adjacent to the valve portion, so that the orifice passage is selectively closed by the valve member and opened through the cutout in communication with the equilibrium chamber. The elastic mount includes a mechanism for converting a reciprocating movement into a rotary motion of the valve. The mechanism includes a drive rod which is connected to the valve such that the connecting point is offset from the rotation axis of the vale in the radial direction. The other end of the drive rod is located outside the elastic mount for receiving the reciprocating movement.

대표청구항 ▼

A fluid-filled elastic mount comprising: a first mounting member to be attached to one of two members of a vibration system; a generally cylindrical second mounting member to be attached to the other of said two members, said second mounting member including a cylindrical wall; an elastic body elast

A fluid-filled elastic mount comprising: a first mounting member to be attached to one of two members of a vibration system; a generally cylindrical second mounting member to be attached to the other of said two members, said second mounting member including a cylindrical wall; an elastic body elastically connecting said first and second mounting members so as to fluid-tightly close one of axially opposite open ends of said second mounting member; a flexible diaphragm fluid-tightly closing the other of said axially opposite open ends of said second mounting member, and cooperating with said elastic body and said second mounting member to define a fluid-tight space; a partition member disposed in said fluid-tight space so as to divide said fluid-tight space into a pressure-receiving chamber which is partially defined by said elastic body and filled with a non-compressible fluid and whose pressure changes upon application of a vibrational load to the elastic mount, and an equilibrium chamber which is partially defined by said flexible diaphragm and filled with the non-compressible fluid and whose volume is variable by displacement of said flexible diaphragm, said partition member having a sliding surface which defines a valve hole; means for defining at least one orifice passage for fluid communication between said pressure-receiving and equilibrium chambers; a rotary valve accommodated in said valve hole such that said rotary valve is rotatable in sliding contact with said sliding surface about an axis thereof which extends in a radial direction of said second mounting member, said rotary valve having a cutout communicating with said equilibrium chamber, and including a valve portion adjacent to said cutout, said at least one orifice passage being open on said sliding surface of said valve hole, so that at least one of said at least one orifice passage is selectively closed by said valve portion and opened through said cutout in communication with said equilibrium chamber; and a motion converting mechanism for converting a reciprocating movement into a rotary motion of said rotary valve, said motion converting mechanism including a drive rod connected at one of opposite ends thereof to said rotary valve at a position which is offset from said axis of said rotary valve in a radial direction of said rotary valve, said drive rod extending through said cutout, said equilibrium chamber and said flexible diaphragm, the other of said opposite ends of said drive rod being located outside said fluid-tight space for receiving said reciprocating movement.