发明名称 PROCESS FOR MANUFACTURING PNEUMATIC TIRE
摘要 Provided is a method of manufacturing a pneumatic tire, which causes no blister to take place during vulcanization molding even in a case where a cylindrical thermoplastic resin film is used as an air-permeation preventing layer while a rubber sheet material laminated onto the thermoplastic resin film has a thickness of 0.5 mm or more. The method includes the steps of: winding an unvalcanized rubber sheet material (7) with a thickness of 0.5 mm or more around a cylindrical thermoplastic resin film (6) which is placed around a making drum (20); and splicing one end portion and the other end portion of the rubber sheet material (7) together so that the spliced part is step-shape. The method is characterized in that one end portion of the rubber sheet material (7) is spliced onto the other end portion thereof with an auxiliary rubber sheet (12) interposed between a step part of the spliced part (11) of the rubber sheet material (7) and the thermoplastic resin film (6), the auxiliary rubber sheet (12) being thinner than the thermoplastic resin film (6).
申请公布号 EP1990179(A1) 申请公布日期 2008.11.12
申请号 EP20070714910 申请日期 2007.02.26
申请人 THE YOKOHAMA RUBBER CO., LTD. 发明人 HATA, HIROSHI
分类号 B29D30/30;B60C9/04 主分类号 B29D30/30
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