发明名称 |
PRODUCTION OF V-RIBBED BELT |
摘要 |
PROBLEM TO BE SOLVED: To produce a V-ribbed belt without generating a large quantity of ground rubber refuse. SOLUTION: An unvulcanized rubber sheet 4 is superposed on a press mold 2 having a large number of preforming V-grooves 1 provided thereto through a resin film 3 to be pressed to the mold 2 to shape preparatory V-ribs 5 on the surface of the rubber sheet 4 having the resin film 3 superposed thereon. A cylindrical split mold having a large number of molding V-grooves provided to the outer periphery thereof in the peripheral direction and divided into a plurality of parts in the peripheral direction to be made foldable and capable of being reduced in diameter by folding is used and the rubber sheet 4 is wound around the outer periphery of the split mold so that the resin film 3 comes into contact with the split mold and the preparatory V-ribs 5 are fitted in the molding V-grooves. Subsequently, the whole is covered with a jacket to perform vulcanization to mold a sleeve-shaped molded object and the split mold is folded to take out the sleeve-shaped molded object from the outer periphery of the split mold. |
申请公布号 |
JPH11309788(A) |
申请公布日期 |
1999.11.09 |
申请号 |
JP19980119186 |
申请日期 |
1998.04.28 |
申请人 |
MITSUBOSHI BELTING LTD |
发明人 |
SHIYAURA TSUNEO;OKAWA HIROYUKI |
分类号 |
F16G5/20;B29D29/10;B29K21/00;(IPC1-7):B29D29/10 |
主分类号 |
F16G5/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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