| 摘要 |
<p>Disclosed is a flexible plastic hose comprising a flexible wall made out of a plurality of laterally connected windings of a helically wound profile. The profile comprises a web part (7) with predetermined properties for providing flexibility to the hose, an upright part (61, 81) on both sides of the profile and a horizontal leg (62, 82) that extends in line with the web part and in the direction of the adjacent winding. The windings of the profile are attached to each other by means of a weld (9) located between the upright parts (61, 81) of the adjacent windings. Together, these upright parts form a helical reinforcement rib on the flexible wall of the hose with predetermined properties for providing hub strength to the hose, such that the hose is resistant to buckling, when bent, and will return to its original shape in absence of a compressive force.</p> |
