METHOD OF MANUFACTURING RUBBER HOSE REINFORCED BY STEEL CORDS, AND RUBBER HOSE REINFORCED BY STEEL CORDS

摘要

A method of manufacturing a rubber hose reinforced by a plurality of helically arranged steel cords is provided. The rubber hose includes an inner tube, an outer tube, and a laminated reinforcing layer between the inner and outer tubes. The reinforcing layer is formed by laminating unit layers on each other. A composite strip material is formed by embedding a plurality of reinforcing steel cords in an unvulcanized rubber strip so as to extend in the longitudinal direction thereof. The strip material is wound around the inner tube and vulcanized. The unit layers are formed from the composite strip material having a single continuous form, and each layer is formed by alternately repeating a winding pass forming step for winding the composite strip material in a first direction and a winding pass forming step for winding the composite strip material in a second direction opposite the first direction.