JO3582B1 - Extensible flexible hose, and method and production line for continuously manufacturing thereof - Google Patents

Abstract

A flexible hose for transporting fluid, particularly a flexible garden hose for transporting water. The hose comprises: at least one inner layer (<strong>10</strong>) made of a first elastic polymeric material; at least one outer layer (<strong>20</strong>) made of a second elastic polymeric material; at least one textile reinforcement layer (<strong>30</strong>, <strong>40</strong>) interposed between said at least one inner layer (<strong>10</strong>) and at least one outer layer (<strong>20</strong>). The at least one inner layer (<strong>10</strong>) and the at least one outer layer (<strong>20</strong>) are reciprocally coupled to form a unitary tubular member (<strong>50</strong>) internally to which the at least one textile reinforcement layer (<strong>30</strong>, <strong>40</strong>) is embedded. The unitary tubular member (<strong>50</strong>) has an elasticity such to automatically elongate upon the working pressure given by the liquid flowing therethrough to increase its original length and such to automatically recovery once the working pressure stops for assuming again the original length. The at least one textile reinforcement layer (<strong>30</strong>, <strong>40</strong>) is susceptible to move from a rest configuration that has when the working pressure stops to a working configuration that has when said unitary tubular member (<strong>50</strong>) elongates upon the working pressure and vice-versa.