SYNCHRONOUS MULTILAYER STRETCHABLE WATER HOSE Russian patent published in 2019 - IPC B29L23/18 

FIELD: manufacturing technology.

SUBSTANCE: disclosed is a synchronous multilayer stretchable hose including a stretching inner chamber and a fabric sleeve on it from outside, wherein between the inner chamber and the sleeve there is a layer of stretchable plastic film; fabric hose can be single-layer or multilayer and represents a smooth or corrugated fabric sleeve formed by a weave of stretched elastic threads arranged with intervals in axial direction, and non-stretching power threads arranged with intervals in a circular direction. Inner chamber, plastic film layer and fabric sleeve are synchronously stretched and contracted by water pressure variation, effectively reducing damage as a result of friction between inner layers of stretched tubular structure, prolonging service life of entire stretching water hose. Layer of plastic film has a smooth surface, which provides relatively small damage from friction of inner chamber.

EFFECT: present invention is used for washing machines, garden watering, house cleaning and other purposes when used together with a water pipe.

8 cl, 13 dwg