| 摘要 |
<P>PROBLEM TO BE SOLVED: To perfectly prevent slack, detachment and leakage of a flexible pipe caused by inner pressure increase. <P>SOLUTION: An engaging part 2d for contacting with a tightening ring 3 is provided for a nipple 2 and an elastic member 5 is provided between a main body 1 and the nipple 2 to tightly make contact with them together and the nipple 2 is reciprocally supported for this main body 1 in an inserting direction of the flexible pipe B and the nipple 2 is moved to a direction opposite to insertion while compressingly deforming the elastic member 5 along with pressure increase in the main body 1 and the nipple 2. Thus, a gap between the main body 1 and the nipple 2 is tightly closed by the compressingly deformed elastic member 5 and the tightening ring 3 is pressed along a tapered surface 4a of a cap 4 via an engaging member 2d of the nipple 2 and an inner circumferential engaging part 3b of the tightening ring 3 is abutted with pressure on an outer circumferential surface B1. <P>COPYRIGHT: (C)2009,JPO&INPIT |
