Steel cord for rubber reinforcement and pneumatic radial tire produced by using the same
    212.
    发明专利
    Steel cord for rubber reinforcement and pneumatic radial tire produced by using the same 审中-公开
    用于橡胶加固的钢丝绳及使用其制造的气动径向轮胎

    公开(公告)号:JP2006274527A

    公开(公告)日:2006-10-12

    申请号:JP2005174842

    申请日:2005-06-15

    Abstract: PROBLEM TO BE SOLVED: To provide a steel cord for rubber reinforcement, having improved impregnation property of rubber into the cord and keeping low cord rigidity while keeping the merits of multi-layer twist steel cord comprising high cord strength and good fatigue resistance and provide a pneumatic radial tire produced by using the cord as the reinforcing material. SOLUTION: The steel cord having a three layer twist structure is composed of a core 1 composed of two strands, an intermediate sheath 2 composed of 7 strands wound around the core 1, and an outer-layer sheath 3 composed of 12 strands wound around the intermediate sheath 2. The ratio (ds/dc) of the diameter (ds) of the strand constituting the intermediate sheath 2 and outer layer sheath 3 to the diameter (dc) of the strand constituting the core 1 is 1.0-1.1. Preferably the twisting direction of the intermediate sheath 2 is reverse to that of the outer-layer sheath 3. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种橡胶增强用钢丝帘线,其具有改善的橡胶浸入帘线中的浸渍性能并且保持较低的帘线刚性,同时保持多层绞合钢丝帘线的优点包括高帘线强度和良好的抗疲劳性 并提供通过使用帘线作为增强材料制造的充气子午线轮胎。 解决方案:具有三层扭曲结构的钢丝帘线由两根股线构成的铁芯1,由芯线1缠绕的7根股线组成的中间护套2和由12股线组成的外层护套3 围绕中间护套2缠绕。构成中间护套2和外层护套3的线的直径(ds)与构成芯1的线的直径(dc)的比(ds / dc)为1.0-1.1 。 优选地,中间护套2的扭转方向与外层护套3的扭转方向相反。版权所有:(C)2007,JPO&INPIT

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