| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent that a coupler fully comes off from a pipe, even when the coupler is mounted in a half lock state. SOLUTION: This coupler is constituted so as to become in a free state in which a lock ball 24 and guide ball 26 positioned so as to be able to move to a diameter direction for this socket 10 can move to the outer, direction of a socket 10 by the slide operation of a sleeve 30 assembled on the outer periphery of the socket 10 against a spring force and so that the lock ball 24 can be regulated so as not to be moved by the release of said operation force for the sleeve 30 to the outer direction of the socket 10. In this case, the guide ball 26 is regulated so as not to be moved to the outer direction of the socket 10, in a released state of the slide operation force for the sleeve 30.</p> |
