| 摘要 |
PURPOSE:To release the gas at the time of pressurizing and vulcanizing, eliminate the generation of bares on the surfaces of rubber and provide a superior appearance by applying a sponge component consisting of continuous foams with breathability at the vulcanizing temperature on the surface of a rubber molded material. CONSTITUTION:An unvulcanized rubber sheet 12 is unwound from an unwinding roll 22 to the side of a winding roll 23 at a given speed, and a pair of urethane foams 14 are supplied on the surface 12d and the back 12e of the rubber sheet 12 from an urethane foam supplying roll 25 to the upstream side of pressure rollers 24, pressurized and vulcanized between vulcanizing presses 21. While being heated and softened, the upper sheet 12 gradually compresses the urethane foam 14 by the pressurizing force of the vulcanizing presses 21 and enters into spaces 14c of continuous foams of the urethane foam 14. The air in recessed sections 12c on the surface of the rubber sheet 12 is pushed out. A molded component 11A for a rubber sheet 12A without bares of recessed sections 12c in which air resides on the surface of the rubber sheet 12A, or in other words, without the generation of bares, is formed. |
