| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To inexpensively provide a rotation preventive means for preventing reduction in airtightness by abrasion of a part with a simple constitution by an easy manufacturing technology, by mutually irrotationally connecting a metallic pipe and a cylindrical socket in a joining tool for connecting the metallic pipe having a relatively thin diameter and the thin thickness with a pressure rubber hose. <P>SOLUTION: Spools 12 and 13 are formed by swelling the outer periphery of the metallic pipe 1 in two places, and are butted against butting parts 14 and 15 arranged on an outside end surface 10 and an inside end surface 11 of an end wall 5 of the cylindrical socket 4. A fitting projection part 18 projected in one and/or other spools 12 and 13, and is fitted in a fitting recessed part 17 arranged on a wall surface of one and/or other butting parts 14 and 15 by communicating with an insertion port 8. The rubber hose 2 is installed on the outer periphery of a connecting part 3 of the metallic pipe 1 in an installation chamber 7, and this rubber hose 2 and the connecting part 3 are caulked and fixed by a cylindrical caulking part 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
