| 摘要 |
PURPOSE:To improve productivity of a rubber sleeve without spoiling durability, by a method wherein inner layer rubber, a reinforcement cord layer and outer layer rubber are wound round a long-sized core material at a predetermined lead angle and the core material is pulled out after cutting off. CONSTITUTION:A core material 1 is wound round a drum D, sent out straightly at predetermined speed through rollers 5, 6 inner layer rubber 2 is formed by making rubber 2' wound round in a disclike state revolve to the core material 1 at a position before the roller 5, cord layers 31, 32 are formed by making cords 31', 32sq. rt. wound round in the disclike state revolve to the core material 1 at a space between the rollers 5, 6 and then an outer layer rubber 4 is formed by making a rubber 4' wound round in the disclike state revolve to the core material 1. A molded article 8 is obtained by cutting off this rubber sleeve with a cutter 7. Rubber sleeve 10 is manufactured by a method wherein the core material 1 is pulled out, an air bag 14 is put into a molded article 9, fitted in a mold 15, pressure fluid is enclosed through a charging and exhausting port 14a, vulcanization is performed by heating the whole and one side diameter is expanded. |
