| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid collision between a power transmission member and a driven side rotor when power transmission from an external driving source to a driven machine is cut off.SOLUTION: On an inner surface on the side farther from a rotation center axis L of a drive side rotor 12 in a storage hole 20, a separation part 21 is provided which is separated from the rotation center L as it is separated from a driven side rotor 14. When a power transmission member 22 is detached from a fitting recess part 23 and power transmission from an external driving source 11 to a driven machine 13 is cut off, the power transmission member 22 is pressed against the separation part 21 by a centrifugal force F1 applied to the power transmission member 22. The power transmission member 22 moves in the direction separating from the driven side rotor 14 along the separation part 21, so that the power transmission member 22 does not collide with the driven side rotor 14.</p> |
