| 摘要 |
PURPOSE:To simply unlock a lock pin for allowing retainer pins to be rearwardly moved, by rotating a rotary body and a tool socket at a predetermined angle, and thereafter rotating the rotary body and a pinion member relative to each other. CONSTITUTION:Until a tool socket 15 fixedly supported through a rotary body 28 has been rotated at a predetermined angle, retainer pins 23, which are engaged by the tension of springs 36 with a bull stud 21 of a tool 20, are prevented by a lock pin 33 from being rearwardly moved. After the rotary body 28 and tool socket 15 have reached an end of rotation thereof to be stopped, the rotary body 28 and a pinion member 29 are rotated relative to each other to drive the lock pin 33 to an unlocking position and thereby allow the retainer pin 23 to be rearwardly moved. |
