| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a situation in which an O-ring inserted in an inserting hole wall in order to secure gas sealing performance of an inserting cylindrical part of a male member and an inserting hole of a female member is jumped outside the female member on the way of the separation of the male and female members. SOLUTION: A cylindrical member 4 is fitted in an inserting hole 33b, the cylindrical member 4 can be moved in the range from the blocking position in which a circumferential groove 30b is covered to the releasing position separated from the circumferential groove 30b, and the cylindrical member 4 is positioned in the blocking position side by energizing force of a spring 32b. When an inserting cylindrical part 10 of a male member A is connected to the inserting hole 33b of a female member B, the cylindrical member 4 is moved to the releasing position side by the inserting cylindrical part 10 against energizing force of the spring 32b.</p> |
