| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical vibration-proof device having a new structure in which a characteristic of stopper means for use in limiting a relative displacement amount of an inner shaft member and an outer cylinder member in their axial direction can be tuned under a high degree of freedom without causing a flange part to be largely protruded toward an outer circumference.SOLUTION: This invention relates to a cylindrical vibration-proof device 10 having a structure in which an inner shaft member 12 is inserted into a cylindrical part 18 of an outer cylindrical member 14 made of synthetic resin and they are resiliently connected to each other by a main body rubber resilient body 16 and at the same time, a flange part 20 expanding toward an outer circumference is integrally formed with one end of the cylindrical part 18 in an axial direction and a dampening rubber 24 is fixed to the outer surface of the flange part 20 in its axial direction, an inner diameter size R1 of one end part 30 in an axial direction of the cylindrical part 18 formed with the flange part 20 is smaller than an inner diameter size R2 of the other end part 32 of the cylindrical part 18 in an axial direction [R1<R2] and at same time one end part 30 of the cylindrical part 18 in its axial direction has a thicker wall size than that of the other end part 32 of the cylindrical part 18, [t1>t2].SELECTED DRAWING: Figure 2 |
