| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a resin tube element which can be connected with good working efficiency. <P>SOLUTION: In the resin tube element 10, a hollow resinous cylinder 12 having a rectangular cross section is spirally wound, and adjacent spiral side wall portions 12a are bonded with each other. In that case, at one end portion of the resin tube element 10, a male screw portion 14 for connecting formed with the side wall portion 12a of the hollow resinous cylinder 12 having an outer wall portion 12b of one end portion which is removed by predetermined width and exposed on a tread is provided. At the other end portion, a female screw portion 16 for connecting formed with the side wall portion 12a of the hollow resinous cylinder 12 having an inner wall portion 12c of the other end portion which is removed by predetermined width and exposed on a tread is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
