| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely prevent relative movement of a first divided pivot shaft and a second divided pivot shaft in a rotating direction. <P>SOLUTION: A pivot shaft 11 is divided into the first divided pivot shaft 11a and the second divided pivot shaft 11b, a circular protrusion 21 is provided on an end of the divided pivot shaft 11a, a male spline 22 is provided on an end of the circular protrusion 21, processing accuracy of an outer surface of the circular protrusion 21 is higher than processing accuracy of an outer peripheral surface of the pivot shaft 11, a circular recess 23 is provided on an end of the divided pivot shaft 11b, a female spline 24 is provided on a bottom part of the circular recess 23, processing accuracy of an inner surface of the circular recess 23 is higher than processing accuracy of the outer peripheral surface of the pivot shaft 11, and the male spline 22 and the female spline 24 are engaged with each other, and the circular protrusion 21 and the circular recess 23 are engaged with each other, and thereby, the divided pivot shaft 11a and the divided pivot shaft 11b are connected. <P>COPYRIGHT: (C)2009,JPO&INPIT |
