| 摘要 |
PROBLEM TO BE SOLVED: To achieve a structure improving an axial connecting strength between an intermediate shaft and a yoke, and thereby, even after a lapse of a long time period, hardly generating any axial backlash in a connecting part between the intermediate shaft and the york.SOLUTION: A shape related to a circumferential direction of the top of a crest of a male serration part 13a disposed at a front end of an inner shaft 21 of an intermediate shaft is set as a partially circular arc shape about a center axis of the inner shaft 21. An uneven part is formed at the top in the axial direction, and the shape of the top in the view from the radial direction of the inner shaft 21 is set as a serration shape or a triangle wave shape. |
