| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting structure of a resin tube capable of easily press fitting a nipple, having superior withdrawal resistance and confirming the inserting amount of the nipple to the resin tube. SOLUTION: In this flat square-shaped connecting structure of the resin tube wherein the nipple having a projection on its outer peripheral face is press fit into the resin tube, and a sleeve is externally inserted to an outer peripheral face part of the resin tube to which the nipple is press fit, a notch or a cut is formed on an end part of the sleeve in a state of being faced to an end part side of the resin tube. The nipple is made out of resin or metal, preferably made out of a heat-proof and weather-proof resin. An inner diameter of the sleeve is same as or slightly smaller than an outer diameter of the resin tube. The shape of the notch formed on the end part of the sleeve is V-shape or U-shape. COPYRIGHT: (C)2004,JPO&NCIPI
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