| 摘要 |
When releasing a connection between a second tube member (14) and a first tube member (12), a ring member (40) is moved toward an arrow A, whereby an inclined surface (70A) of a bump part (70) and an inclined surface (66A) of a bump part (66) of a cam part (56) slide, and a stopper (52) rotates from a coupled position to an uncoupled position. As a result, a coupling between a leading end part (54A) of a claw part (54) of the stopper (52) provided on the second tube member (14), and a coupling surface (21C) of a coupling-accepting part (21) on the first tube member (12) is released. In case of connecting the second tube member (14) and the first tube member (12), when the first tube member (12) is pushed into the second tube member (14) with the ring member (40) in the locked position, the claw part (54) of the stopper (52) is elastically deformed, whereby the leading end part (54A) of the claw part (54) rides past the coupling-accepting part (21), and couples to the coupling surface (21C) of the coupling-accepting part (21). |
