Patent ID: 7584945

Claim:
A vibration damping device for connecting two components in a vibration damping fashion, comprising: a main rubber elastic body of generally frustoconical shape overall; a first mounting member adapted to be fixed to one of the two components, and being of independent separate structure from the main rubber body, and being superimposed on a small diameter end face of the main rubber elastic body while being movable away therefrom; a second mounting member adapted to be fixed to an other one of the two components, and being fixed to an outer circumferential face of a large diameter end of the main rubber elastic body; a rebound abutting portion of flange shape integrally formed on an outside peripheral portion of the first mounting member; a tubular bracket fastened fitting externally about the second mounting member and axially extending toward the first mounting member so as to provide a mating tube portion at an axial distal end portion thereof; a stopper abutting portion formed at an axial distal end of the tubular bracket and extending inwardly in an axis perpendicular direction, the stopper abutting portion being situated facing and spaced apart axially outward with respect to the rebound abutting portion; a cushioning rubber disposed on the rebound abutting portion so as to constitute a rebound stopper mechanism for limiting relative displacement in a moving away direction in an axial direction between the first mounting member and the second mounting member on the basis of cushion-wise abutment of the rebound abutting portion and the stopper abutting portion via the cushioning rubber; a pair of first abutting faces for positioning purposes, being formed at portions situated to either side in a first axis perpendicular direction of an outer circumferential face of the cushioning rubber, in a diametrically opposed arrangement extending parallel to each other in a circumferential direction; a pair of first abutted faces for positioning purposes, being formed at portions situated to either side in the first axis perpendicular direction of an inner circumferential face of the mating tube portion in a diametrically opposed arrangement extending parallel to each other in a circumferential direction, wherein with the pair of first abutting faces of the cushioning rubber aligned in the circumferential direction with respect to the pair of first abutted faces of the mating tube portion, the cushioning rubber is housed within the tubular bracket, with an axial distal end face of the cushioning rubber being pushed in the axial direction against the rebound abutting portion on the basis of the elasticity of the main rubber elastic body, and wherein a first rotation preventing mechanism for preventing rotation of the first mounting member about a center axis of the tubular bracket by means of abutting contact of the pair of first abutting faces of the cushioning rubber against the pair of first abutted faces of the mating tube portion.