| 摘要 |
PROBLEM TO BE SOLVED: To improve NVH performance of a vehicle by suppressing high-degree vibration of a drive shaft. SOLUTION: In a drive shaft having an intermediate shaft 50 on one end of which a slide type constant velocity universal joint 51 is mounted and on the other end of which a fixed type constant velocity universal joint 53 is mounted, in a way that the slide type constant velocity universal joint 51 and the fixed type constant universal joint 53 are brought into vibration characteristics different in a degree, overlap at a low degree of vibration component with each other is prevented from occurring, the number of the overlapping times is decreased and the increase of amplitude is suppressed. For example, a ball type constant velocity universal joint using eight balls is employed in the fixed constant velocity universal joint 53, and a ball type constant velocity universal joint using six balls or a tripod type constant velocity universal joint is employed in the slide type constant velocity universal joint 51.
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