| 摘要 |
PURPOSE:To enable a connecting pin to be easily removed and attached while being securely prevented from dropping out by permitting an operating shaft to extend vertically movably through a pin body and connecting pivotably engaging claws to the lower end of the operating shaft to enter and project from said lower end as the operating shaft moves vertically. CONSTITUTION:A pin hole 17 in a bracket 16 projected from a body frame 15 of a cart is aligned with a pin hole 19 in a connecting fitting 18 so that a connecting pin A is inserted into these pin holes 17, 19 to connect the connecting fitting 18 to the bracket 16. In this case, when the connecting pin A is inserted into both pin holes 17, 19, a head 7 of the operating shaft 6 is depressed against a coil spring 10a after the operating shaft 6 is relieved from lowering regulated by a holding cam 10b connected pivotably to said head 7. Then, engaging claws 8 pivoted 9 to the lower end of the operating shaft 6 are housed in a space 3 of the lower end of a pin body 1. Thus, when the pin body 1 is inserted into both pin holes 17, 19 and the head 7 is relieved from the depression, the engaging claws 8 project from windows 4 to engage mating members. |
