| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable easy pulling of a shaft body in the longitudinal direction of an engagement groove, when the shaft body cannot be inserted into the engagement groove in a state where engagement amount is insufficient and the engagement with a correct position is not performed and the connection is released. <P>SOLUTION: The shaft body 1 has an engagement part 11 having a removal preventing groove 11c and a positioning recess 12 connected to the engagement part 11. A shaft coupling A having the engagement groove 21 engaged with the engagement part 11 and a hole 22 facing the engagement groove 21 is provided with a flexible member 57 that is disposed outside in the longitudinal direction of the engagement groove 21 and engages with the positioning recess 12. When the engagement amount is insufficient and the engagement with the correct position is not performed, the engagement part 11 abuts on the flexible member 57 and cannot engage with it. In a case of releasing the connection such as the time of maintenance and inspection, the flexible member 57 is sagged in the width direction of the engagement groove 21, thereby releasing the engagement of the flexible member 57 with the positioning recess 12 and pulling the shaft body 1 in the longitudinal direction of the engagement groove 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
