| 摘要 |
PROBLEM TO BE SOLVED: To provide high sealing performance with an O-ring and to prevent torsion and flaw of the O-ring. SOLUTION: This connector comprises a flange-like base 1 and a fir-tree-shaped cylindrical section 2, the outer peripheral section 10 of the base 1 and the outer peripheral section of a root section 20 of the cylindrical section 2 are formed of first resin weldable with a vessel, the tip from the root section 20 is formed of second resin having rigidity higher than that of first resin, and an O-ring groove 24 is formed in the surface near or of the root section 20 of the cylindrical section 2. A hose 5 does not contact with the O-ring 4 in the initial stage to a middle stage of press fitting of the hose 5, and only the O-ring 4 is put into friction in a late stage, so that friction time period of the O-ring 4 is shortened. COPYRIGHT: (C)2005,JPO&NCIPI
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