| 摘要 |
PROBLEM TO BE SOLVED: To easily flow liquid which flows in a liquid chamber so as to reduce road noise by forming a spacer composed of a rubber elastic body on an axial direction both end surface side of a stopper. SOLUTION: A liquid chamber 7 composed of recessed parts formed on both sides of a radial direction, an intermediate cylindrical metal fitting 4, an external cylindrical metal fitting 2 is formed on a center part of an axial direction of a main shaft metal fitting 1, and liquid is filled inside. A rubber elastic body 3 is integratedly connected between the main shaft metal fitting 1 and the intermediate cylindrical metal fitting 4 by means of vulcanizing and bending, a pair of annular side walls 33 are formed by connecting to each other by a spacer part 31 corresponding to a ring part of the intermediate cylindrical metal fitting 4, and a side walls 33 are divided into two parts by a pair of partition walls 8. When a vibration isolating device is vibrated in a direction extending the stopper metal fitting 6, the position of the main shaft metal fitting 1 is deviated, and thereby, the partition wall 8 is deformed. In this time, since an orifice passage 5 formed on a joining part of the partition wall 8 with an external metal fitting 2 is penetrated on a bridge part 41 for the intermediate metal fitting 4, a flow rate is not restricted. It is thus possible to avoid an influence caused by antiresonance. |
