| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact dynamic damper structure of a propeller shaft, capable of inhibiting the vibrational noise caused by the natural frequency of an engine mounting bracket. SOLUTION: This dynamic damper 10A is formed by an annular rubber body 58 and a front propeller shaft 6A by forming a cut part 51 on a first engine side bracket part 48, and mounting a ball bearing 63 on the cut 51 via the annular rubber body 58. By forming the front propeller shaft 6A with a mass body, the increase of the mass can be prevented in comparison with a conventional technique, where the mass body is independently mounted. As the annular rubber body 58 or the like is accommodated in the cut 51, the constraint on an installation space can be reduced in comparison with a conventional technique, where a dynamic damper is externally mounted on an engine mount bracket, which makes the structure small in size.
|
