Patent ID: 9719570
Date: 2017-08-01
CPC Classifications: F16F

Claim:
1. A vibration-damping device comprising: an inner cylinder; an outer cylinder arranged at a distance on an outer diameter side of the inner cylinder; a rubber elastic body that is interposed between the inner cylinder and the outer cylinder to couple the inner cylinder and the outer cylinder elastically; and an intermediate member that is embedded in the rubber elastic body, wherein the intermediate member has a plurality of cutout parts that position on both end sides in an axial direction of the outer cylinder and at which the rubber elastic body inside the intermediate member is joined with the rubber elastic body outside the intermediate member, the intermediate member further has belt parts and a joining part having a plurality of projections forming one end portion and another end portion of the intermediate member in the axial direction, a thickness of the joining part is equal to a thickness of the projections in a radial direction, at least one of the plurality of cutout parts is arranged to overlap a first area between two parallel imaginary planes each tangentially extending from opposite points on an outer circumference surface of the inner cylinder and to overlap a second area between two imaginary planes that pass through a center of the inner cylinder and are orthogonal to each other, a cross-sectional shape of the projections in a direction orthogonal to the axial direction follows a cross-sectional shape of the cutout parts, the projections are located outside the first area and the second area, and project outward in the axial direction with respect to end surfaces of the outer cylinder, and a thickness of an inner side rubber elastic body between the inner cylinder and the intermediate member is equal to a thickness of an outer side rubber elastic body between the outer cylinder and the intermediate member.