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    Steel cord, rubber-steel cord composite and tire
    61.
    发明专利
    Steel cord, rubber-steel cord composite and tire 审中-公开
    钢丝绳，钢丝绳复合材料和轮胎

    公开(公告)号：JP2007217807A

    公开(公告)日：2007-08-30

    申请号：JP2006037822

    申请日：2006-02-15

    Applicant: Bridgestone Corp ,  株式会社ブリヂストン

    Inventor： IKEHARA KIYOSHI

    IPC: D07B1/06 ,  B60C9/00 ,  B60C9/20 ,  B60C9/22

    CPC classification number: B60C9/22 ,  B60C9/0007 ,  B60C9/2006 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/1004 ,  D07B2201/1032 ,  D07B2201/1044 ,  D07B2201/1076 ,  D07B2201/202 ,  D07B2201/2021 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/204 ,  D07B2201/2059 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2801/12

    Abstract: PROBLEM TO BE SOLVED: To provide a steel cord especially useful for reinforcement application to tire crowns, able to be efficiently produced with stable quality without causing for any trouble in production as in conventional production, a rubber-steel cord composite and a tire.
    SOLUTION: The steel cord has a multiple strand structure in which N (N=2-8) strands 2 prepared by twisting two or more element wires 1 are twisted. In the steel cord, ε
    c is defined by the following formula, wherein d(mm) expresses the diameter of the strand, D(mm) expresses the diameter of a circumscribed circle of the cord and P(mm) expresses a twisting pitch: ε
    c =√(-b/2+√(b
    2 /4-c))-1 [wherein b expresses -1+π
    2 (-4R
    2 +d
    2 )/P
    2 ; c expresses π
    2 d
    2 k(4π
    2 R
    2 +P
    2 )/P
    4 ; R expresses (D-d)/2; k expresses tan
    2 (π/2-π/N)] and satisfies ε
    c ≥0.005. The tire has a reinforcing layer using the rubber-steel cord composite as a reinforcing material.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供特别适用于轮胎冠的加强应用的钢帘线，能够以高质量的方式高效率地生产，而不会像常规生产那样在生产中产生任何麻烦，橡胶钢帘线复合材料和 胎。 解决方案：钢丝绳具有通过扭转两根或更多根丝线1制成的N（N = 2-8）绳股2的多股线结构。 在钢帘线中，ε c 由下式定义，其中d（mm）表示股线的直径，D（mm）表示绳索的外接圆的直径和P（ mm）表示扭曲间距：ε（b / 2 +√（b 2 / 4-c））-1] [其中b表示-1+ π 2 （ - 4R 2 + D 2 ）/ P 2 ; c表示π 2 2 2 2 2 2 ）/ P 4 ; R表示（D-d）/ 2; k表示tan 2 （π/ 2-π/ N）]，并满足ε c ≥0.005。 轮胎具有使用橡胶 - 钢帘线复合材料作为增强材料的增强层。 版权所有（C）2007，JPO＆INPIT

    Steel cord for rubber crawler
    64.
    发明专利
    Steel cord for rubber crawler 有权
    钢丝绳钢丝绳

    公开(公告)号：JP2009052177A

    公开(公告)日：2009-03-12

    申请号：JP2007222363

    申请日：2007-08-29

    Applicant: Bridgestone Corp ,  株式会社ブリヂストン

    Inventor： OBANA NAOHIKO

    IPC: D07B1/06

    CPC classification number: D07B1/0613 ,  D07B2201/1076 ,  D07B2201/202 ,  D07B2201/2051 ,  D07B2401/208 ,  D07B2801/24

    Abstract: PROBLEM TO BE SOLVED: To provide a steel cord for rubber crawlers, which is improved in buckling tendency and improved in rubber penetrability.
    SOLUTION: The steel cord is such as to be obtained by laying six sheath strands 2 around a core strand 1; wherein the core strand 1 is composed of a core consisting of three filaments 11 and a sheath put around the core and consisting of eight filaments 12, and each of the six sheath strands 2 is composed of a core consisting of three filaments 21 and a sheath put around the core and consisting of eight filaments 22. In this steel cord, the six sheath strands 2 are put apart from each other, and the angle θ of the sheath strands 2 relative to the core strand 1 is 10° or more.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种橡胶履带用钢丝帘线，其弯曲倾向得到改善并且橡胶渗透性提高。 解决方案：钢帘线通过在芯股1周围铺设六条鞘股2而获得; 其中芯线1由三根细丝11组成的芯和放置在芯周围的护套组成，由八个细丝12组成，六根鞘股线2中的每一根由三芯丝21和鞘 放在芯体周围并由八根细丝22构成。在该钢丝帘线中，六根鞘股线彼此分开，鞘股线2相对于芯股线1的角度θ为10°以上。 版权所有（C）2009，JPO＆INPIT

    Steel cord and tire
    65.
    发明专利
    Steel cord and tire 审中-公开
    钢丝绳和轮胎

    公开(公告)号：JP2006283198A

    公开(公告)日：2006-10-19

    申请号：JP2005101335

    申请日：2005-03-31

    Applicant: Kanai Hiroaki ,  金井 宏彰

    Inventor： KOBAYASHI TAKANORI ,  KOBAYASHI YOSHIRO ,  MORIOKA AKITAKA

    IPC: D07B1/06 ,  B60C9/00 ,  B60C9/20

    CPC classification number: D07B1/0613 ,  D07B1/0626 ,  D07B1/0653 ,  D07B2201/1004 ,  D07B2201/1076 ,  D07B2201/2018

    Abstract: PROBLEM TO BE SOLVED: To provide a steel cord which is a zero-degree belt cord having moderate elongation characteristics following to the expansion in the diametral direction of a tire in a vulcanizing treatment during molding of the tire, reducing the elongation after molding of the tire and suppressing the expansion of the tire in the radial direction during running.
    SOLUTION: The steel cord 1 has an n×m open structure without a core strand. The external tangent line shape S2 of strands 2 has a nearly elliptical shape in nearly the same direction in the longitudinal direction. The external tangent line shape S1 of the cord 1 is a nearly elliptical shape in the same direction as the elliptical direction of the strands. The steel cord is characterized as having a structure as follows. The flatness of the strands 2 and steel cord 1 is 1.15-2.70 and the adjacent mutual two wires and the mutual strands contact or approach in both terminal regions in the major axis direction of the strands 2 and steel cord 1 and separate in other regions. The elongation when applying 50 N tensile load is 1.2-3.0%.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种钢丝绳，其是在轮胎成型期间的硫化处理中在轮胎的径向膨胀之后具有适度延伸特性的零度带束帘线，减小了在轮胎之后的伸长率 轮胎成型，并且在行驶期间抑制轮胎在径向上的膨胀。 钢丝帘线1具有没有芯线的n×m开放结构。 线束2的外切线形状S2在长度方向上具有大致相同方向的近似椭圆形状。 帘线1的外切线形状S1在与股线的椭圆方向相同的方向上呈近似椭圆形。 钢帘线的特征在于具有以下结构。 股线2和钢丝帘线1的平坦度为1.15-2.70，相邻的相互的两根线和相互的股线在股线2和钢丝帘线1的长轴方向的两个端部区域中接触或接近，并在其它区域分离。 施加50N拉伸载荷时的伸长率为1.2-3.0％。 版权所有（C）2007，JPO＆INPIT

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