| 摘要 |
PROBLEM TO BE SOLVED: To secure the superior vibration-proof performance to impact load for a long period while improving the moldability and installability, and reducing the manufacturing cost. SOLUTION: A vibration-proof base 3 composed of a rubber elastic body is mounted between a first mounting member 1 and a second mounting member 2 mounted coaxially with the first mounting member, and a stopper rubber 6 is mounted on an inner peripheral face of the first mounting member 1 in a state of forming an annular clearance 5 in the direction perpendicular to the axis with respect to an outer peripheral part of a flange 6 for the stopper projected in the direction perpendicular to the axis from the second mounting member. A plurality of projecting parts and recessed parts 8 are alternately formed on the whole area of the inner periphery of the stopper rubber 6 in such a state that a vertex of each of the projecting parts 7 and a bottom point of each of the recessed parts 8 are respectively arranged on a single circular arc. COPYRIGHT: (C)2005,JPO&NCIPI |
