| 摘要 |
The invention concerns a method for obtaining a flexible conduit (1), said conduit comprising a streamlined strip (4) including in a single piece a core (4a) with two matching edges (4b, 4c), and at least one rib (4d) projecting on one side from the core. The method consists in winding said streamlined strip about an axis (5) in a spiral with contiguous windings, such that the streamlined strip matching edges (4b, 4c), belonging to two different windings, form a joint between them. The invention is characterised in that it consists, in combination: a) in winding the streamlined strip (4), immediately after it has been obtained by extruding a plastic material, in particular elastomer, so that the two matching edges (4b, 4c) directly form between them a sealing joint (6); b) cross-linking the wound streamlined strip, with contiguous windings, to obtain a single piece flexible conduit.
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