| 摘要 |
PROBLEM TO BE SOLVED: To enable sure detection whether a pipe is inserted to a normal depth or not. SOLUTION: The pipe P is inserted into a pipe joint body 1, while a leg piece 39 of a mounting part 34 of a checker 19 is locked on a hooking projection edge 10A. A detecting part 35 is approached to the pipe joint body 1 while deflecting a spring connecting part 36. A connecting arm 23 can be locked on a locking projection 11 when the pipe P is inserted to the normal depth. When the pipe P is not inserted to the normal depth, a detecting piece 8 is collided with a flange 3 of the pipe P, or a pipe retainer 14 in an enlarged state interferes with an inner part of the detecting part 35, which restricts the axial advancing of the detecting part 35, and disables the locking on the locking projection 11. When the detecting part 35 is released in this condition, the detecting part is sprung up to an upper part of the pipe joint body 1 by elastic force of the spring connecting part 36, and the operator can recognize the incomplete insertion of the pipe P. |
