| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a flexible synthetic resin pipe capable of holding a curved state and excellent in workability without providing a shape holding means including a post separately. <P>SOLUTION: The flexible synthetic resin pipe includes an outer layer which is formed by spirally winding a belt-like body, on which a first engagement part is formed along the one side in the width direction and a second engagement part is formed along the other side in the width direction, with the first engagement part and the second engagement part engaged in a non-adhesive state, and an inner layer made of a soft synthetic resin provided along the inside circumferential surface of the outer layer. In this pipe, a curvature holding structure capable of holding the outer layer in a curved state by frictional resistance or engagement when curved is formed on at least either one of the first engagement part and the second engagement part. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
