发明名称 パイプ取付構造及びパイプ継手
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a pipe mounting structure capable of preventing coming off of the pipe solidly relative to a conventional one, and a pipe joint. <P>SOLUTION: In this pipe mounting structure, a thin-wall pipe 20 to be fitted to the outside of a tip part of a pipe 90 is formed in order to fix the tip part of the pipe 90 in a state fitted to the outside of a nozzle 13; an annular valley part 25 forming a groove-like shape on the outer surface side of the thin-wall pipe 20 and forming a projection-like shape on the inner surface side of the thin-wall pipe 20 is formed in the entire circumference at an axial intermediate position of the thin-wall pipe 20; the groove-like shape of the valley part 25 is formed into a shape where areas from respective opening edges on both sides of the groove opening to the groove bottom face 25B are each formed into a curved shape in an S-shaped form while the groove width gradually increases as approaching the groove opening from the groove bottom face 25B; the inner diameter of the valley part 25 is reduced by compressively pressurizing the valley part 25 in the axial direction of the thin-wall pipe 20 to be plastically deformed; and thereby the pipe 90 can be fastened to the nozzle 13. <P>COPYRIGHT: (C)2013,JPO&INPIT</p>
申请公布号 JP5769249(B2) 申请公布日期 2015.08.26
申请号 JP20110255916 申请日期 2011.11.24
申请人 株式会社イノアック住環境 发明人 池田 浩二
分类号 F16L33/22 主分类号 F16L33/22
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