Patent ID: 8979082
Filing Date: 2015-03-17
Classification: B60G,F16F,Y10T

Abstract:
1. A vibration damping bushing comprising: an inner axial member; an outer cylindrical member through which the inner axial member is inserted; a main rubber elastic body elastically connecting the inner axial member and the outer cylindrical member; and a stopper member that is fitted onto the inner axial member as a component of a first stopper mechanism that limits relative displacement of the inner axial member against the outer cylindrical member to one side in an axial direction, wherein the inner axial member is formed with a latching depression that opens toward an outer periphery thereof, and the stopper member is integrally provided with an annular latching piece that protrudes outward in the axial direction, a protrusion tip of the annular latching piece is bent into the latching depression and the annular latching piece is engaged with the latching depression in the axial direction so as to provide a slipping out prevention mechanism for preventing the stopper member from slipping out from the inner axial member, the inner axial member includes a central main body of solid cylindrical shape and a pair of mounting portions protruding from the central main body to both sides in the axial direction, the outer cylindrical member is disposed on an outer peripheral side of the central main body of the inner axial member, and an inner peripheral surface of the main rubber elastic body is directly bonded by vulcanization to an outer peripheral surface of the central main body of the inner axial member, while an outer peripheral surface of the main rubber elastic body is directly bonded by vulcanization to an inner peripheral surface of the outer cylindrical member, the pair of mounting portions protrude outward to both sides of the outer cylindrical member in the axial direction and a bolt hole is formed penetrating through each mounting portion in a direction orthogonal to the axial direction of the inner axial member, and the stopper member is press-fitted onto the outer peripheral surface of the inner axial member at a position between the outer cylindrical member and the mounting portion on the one side in the axial direction of the inner axial member, and the stopper member is integrally provided with the latching piece.