| 摘要 |
PROBLEM TO BE SOLVED: To provide a damper hardly breaking a shaft part fitting part even if the shaft part fitting part retaining a shaft body of a supporting object body is collided with the inside surface of the damper by violently oscillating the supporting object body by vibration. SOLUTION: A buffer projecting part 29 is formed in the outside position excluding a part on an axial line 30 of the shaft fitting part in the bottom part 25 of the shaft fitting part 22. When the shaft body fitting part 22 is displaced in the axial direction Y or the crossing direction with the axis (crossing direction including axis perpendicular direction X), the buffer projection part 29 first collides with the inside surface of the damper 21 (circumferential wall part 7 of the damper 21 or the inside surface of a lid 9) and the colliding force is absorbed by compressive deformation of the easily deformable buffer projection part 29 so that the stress concentration into the bottom part 25 of the shaft fitting part 2 is dispersed to prevent the breaking of the shaft body fitting part 22. |
