| 摘要 |
PROBLEM TO BE SOLVED: To provide a one action dislocation-protection device for a supply and exhaust pipe wherein dislocation-protection is rendered effective only by insertion of an insertion port into a socket. SOLUTION: This dislocation-protection device is formed such that, in a regular size supply and exhaust pipe provided at one end with a socket 11 and at the other end with an insertion port 30, a cut window 12 is formed on the socket side and an escape space 14 and a lock wall 15 are formed at the outside of the cut window 12. Further, a cover wherein a slide guide 16 is formed toward the tip of the socket 11 is attached. A lock member 17 is provided to be held by the slide guide 16 and slidable axially of a pipe, and positioned in the escape space 14 in the cover, and provided at a tip part with a U-shaped lock part 18 and has an operation part 20 exposed from the cover toward the tip side of the socket 11. A peripheral groove 31 positioned facing the cut window 12 when the socket 11 of the other pipe is inserted to a given position and effecting dislocation protection as a result of the lock part 18 falling therein is formed on the insertion port 30 side. |
