| 摘要 |
The invention relates to a dynamic shock absorber (10). The dynamic shock absorber (10) has an arc first arc part (20A) and a second arc part (20B). The first arc part (20A) and the second arc part (20B) respectively comprise a mass body (22A, 22B) which vibrates with phase positions enabling vibration of a rotating shaft (14) to attenuate; an elastomer (24A, 24B) supported the mass body (22A, 22B) in a mode that the mass body (22A, 22B) can swing. The first arc part (20A) and the second arc part (20B) are connected in a detachable mode though enabling engagement portions, arranged in end surfaces (26A, 28A, 26B, 28B) respectively in two peripheral side surfaces of the first arc part (20A) and the second arc part (20B), to be engaged so as to form a cylindrical shape in which the first arc part (20A) and the second arc part (20B) are around the rotating shaft (14) in a circumferential direction. |
