| 摘要 |
PURPOSE: A synthetic resin corrugate pipe with a coupling member is provided to maintain the stable connection between a corrugate and an outer pipe, since an adhesion projection increases friction force between a corrugate and an outer pipe. CONSTITUTION: A synthetic resin corrugate pipe comprises a cylindrical inner pipe(100), a corrugate(200), a cylindrical outer pipe(300), and a coupling member(400). The corrugate is wound on the outer surface of the inner pipe. The corrugate is swelled on the exterior of the inner pipe in a corrugation structure. The corrugate has a hollow portion between the inner pipes. The outer pipe is coupled with the ridge of the corrugate. The outer pipe protects the corrugate.
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