| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that, in a conventional connecting mechanism, a protrusion of one piping is inserted into an engagement part at the other piping side, and it is required to insert a pin into the engagement part while keeping the inserted state, thus causing the complication of connecting work, and furthermore, since the pin can be inserted into the engagement part even in a state that the protrusion does not reach a pin insertion position in an incomplete insertion state of the protrusion, it is difficult to detect an incomplete connecting state.SOLUTION: Holes for pin insertion formed at the engagement part are formed in one pair at right and left, both of the holes are formed so as to be oblong and expanded in a truncated chevron in the insertion direction of the protrusion, the pin is pushed to the protrusion and moved in the hole when the protrusion is inserted into the engagement part in a state that the pin is inserted into each hole, and a gap between the pins is expanded, and after the protrusion passes the gap between the pins, the pin wraps around the back face side of the protrusion.</p> |
