| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress generation of a burr in a tube by friction between the inner circumference surface of a tube insertion groove part of a connector and the inner circumference surface of the tube, with a simple structure. <P>SOLUTION: A tube insertion part 20, on which a ring-shaped tube insertion groove part 20c inserted with a fuel tube made of a resin and subjected to spin welding is formed, is provided on the connector 2. The outer circumference diameter of this tube insertion groove part 20c is gradually decreased while moving from the opening side to the depth side. On the other hand, the inner circumference diameter is roughly fixed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
