| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a torque-transmitting mechanism which can achieve a high effect of reducing backlash, and also can achieve the strength and the durability of a spline joint portion independent of the torque applying direction. <P>SOLUTION: A spline shaft S2 has a first crest portion 11a keeping the tooth width gradually increasing with the distance toward the shaft end side, and a second crest portion 11b keeping the tooth width gradually decreasing with the distance toward the shaft end side. The same number of the first crest portions 11a and the second crest portions 11b are alternately arranged in the circumference. <P>COPYRIGHT: (C)2007,JPO&INPIT |
