| 摘要 |
<p>PROBLEM TO BE SOLVED: To confirm a locking condition at a look so as to improve safety by providing an engaging groove to the base part of a plug member, and also mounting on a sleeve a hanging member which can be hung with the engaging groove when the sleeve is moved on a plug member side. SOLUTION: A pair of small holes are opened in symmetrical positions around the periphery of a sleeve 5, and pivotal parts 13 formed at both ends of an elastic metallic wire member composing a hanging member 12 are inserted to the small holes, so that the hanging member 12 can be attached to the sleeve 5 so as to be freely inclined around the small holes. An engaging groove 21 is formed around the base part 20 of the insert part 6 of a plug member 4. The insert part 6 of the plug member 4 is inserted to the opening end 8 of a socket member 2 so that the sleeve 5 is moved on a plug member 4 side, and an engaging ball in the socket member 2 is inserted in a catching part 7 so that the plug member 4 can be fitted to the socket member 2. Then, the hanging member 12 is stood up and a hanging part 14 is pushed to the engaging groove 21 so that the diameter (c) of an opening part is elastically enlarged, and the hanging part 14 can be held in the engaging groove 21.</p> |
