MANUFACTURING PROCESS OF BELLOWS RUBBER HOSE, AND BELLOWS RUBBER HOSE MANUFACTURED BY THE MANUFACTURING PROCESS

PROBLEM TO BE SOLVED: To attain reduction in cost and prevention of product dispersion by mechanically manufacturing a bellows rubber hose. SOLUTION: In the manufacturing process of the bellows rubber hose comprising manufacturing a sheet roll by winding a reinforced rubber sheet having rubber adhered to a reinforced cloth around an inner mold having a bellows part on the surface, pressurizing the outer circumference of the sheet roll by an outer mold having a bellows part corresponding to the bellows part of the inner mold, which is formed on the inner surface thereof, to mold the sheet roll into a bellows rubber hose of a predetermined shape, and simultaneously performing vulcanizing treatment, the outer mold is circumferentially and axially divided so that respective split molds can be independently pressurized, and the vulcanizing treatment is performed after performing operations of forming one bellows part followed by retaining the shape and successively forming the remaining bellows parts followed by retaining. COPYRIGHT: (C)2009,JPO&INPIT