| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pipe joint for connecting a nose having a protruded fluid passage part to a body having a recessed connection part, capable of shortening assembling work time for fixing the protruded fluid passage part, a gasket, etc., and reducing cost. <P>SOLUTION: The gasket 22 is engaged in a recessed part 20 in a nose main body 14 of synthetic resin, and a root part 16A of the protruded fluid passage part 16 is abutted on the gasket 22. The circumferential surface of the root part 16A is held by a holding part 20A, and the holding part 20A is enlarged on the side of an insertion port 20B to form a step part 20C. A ring member 26 of synthetic resin is engaged with the insertion port 20B, and abutment surfaces of the ring member 26 and the step part 20C are welded by ultrasonic welding. Otherwise, in the nose main body 32 of synthetic resin, a recessed connection part 34 is formed for the protruded fluid passage part 16 to be inserted, and the gasket 38 is engaged with a holding part 40 in the recessed connection part 34. A guide washer 44 of synthetic resin is engaged on the side of the insertion port 42 of the gasket 38. A step part 42A is formed on the side of the insertion port 42 of the holding part 40, and abutment surfaces of the guide washer 44 and the step part 42 are welded by ultrasonic welding. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
