| 摘要 |
<p>PURPOSE:To improve workability so as to reduce labor for manufacture by folding a pipe end bent to a peripheral side, arranging a loose flange turnably relating to a pipe adjacent to a fold part, and providing an axial direction movement restricting member of the loose flange in an opposite side to the fold part, in a flange structure of a lining pipe for hot water supply or the like. CONSTITUTION:An end part of a lining pipe 10, in which a resin lining layer 10b is formed, is folded to an external peripheral side, to form a fold part 11. A loose flange 12 is mounted so as to be opposed to the fold part 11 and further turnably to the pipe 10. A calking ring 13 is arranged in an opposite side to the fold part 11 relating to the loose flange 12, to restrict its movement in the axial direction. That is, external diameter dimension is formed larger than the internal diameter dimension of the loose flange 12, to impede the loose flange 12 from moving. Further, thickness is formed a little larger than the thickness of the loose flange 12 between the calking ring 13 and the fold part 11.</p> |
