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    STEEL CORD, METHOD OF MANUFACTURING SAME, AND PNEUMATIC TIRE
    111.
    发明申请
    STEEL CORD, METHOD OF MANUFACTURING SAME, AND PNEUMATIC TIRE 审中-公开
    钢丝绳，制造方法和气动轮胎

    公开(公告)号：WO1999015727A1

    公开(公告)日：1999-04-01

    申请号：PCT/JP1997003408

    申请日：1997-09-25

    Applicant: BRIDGESTONE CORPORATION ,  ONUMA, Shuichi ,  OBANA, Naohiko ,  KUSABA, Noboru

    Inventor： BRIDGESTONE CORPORATION

    IPC: D07B01/06

    CPC classification number: D07B1/062 ,  B60C9/0007 ,  B60C9/2006 ,  D07B7/025 ,  D07B2201/2016 ,  D07B2201/2023 ,  Y10S57/902

    Abstract: Steel cord used as a reinforcement for a belt layer in pneumatic tires. The steel cord is manufactured by forming a plurality of bends per strand length equivalent to one twist pitch on a strand, which constitutes an outer layer sheath, with the strand length equivalent to one twist pitch being a cycle, twisting these strands while the bends belonging to the same phase are aligned in a cord axial direction, and subjecting cord side surfaces to compression processing. As a result, flat side surface portions are formed, in which a plurality of strands forming the outer layer sheath are positioned substantially in the same plane. The steel cord thus formed is used in reinforcement plies for pneumatic radial tires such that the reinforcement plies are laminated so that the flat side surface portions are mutually parallel. Accordingly, the distribution of shearing stress acting on rubber between the flat side surface portions of the steel cord is made uniform and rigidity of a tire per amount of steel cord used is enhanced. Therefore, it is possible to reduce a weight of the steel cord used per tire and improve fuel efficiency by mounting such pneumatic radial tires on a vehicle.

    Abstract translation: 钢帘线用作充气轮胎带束层的增强件。 钢帘线通过在构成外层护套的绳股上形成多个相当于捻合间距的股线长度的弯曲而制成，其中绞线长度等于一个扭曲节距为一个周期，扭曲这些股线，而弯曲属性 在相同的相位沿帘线轴向对准，并对帘线侧表面进行压缩加工。 结果，形成平坦的侧表面部分，其中形成外层护套的多个股线基本上位于相同的平面中。 这样形成的钢丝帘线用于充气子午线轮胎的加强层中，使得加强层被层压，使得平坦的侧表面部分相互平行。 因此，钢帘线的平坦侧表面部分之间作用在橡胶上的剪切应力的分布是均匀的，并且增加了所使用的钢帘线数量的轮胎的刚性。 因此，通过将这种充气子午线轮胎安装在车辆上，能够减轻每个轮胎使用的钢丝帘线的重量并提高燃料效率。

    Steel cord for reinforcing rubber product
    116.
    发明专利
    Steel cord for reinforcing rubber product 审中-公开
    用于增强橡胶制品的钢丝绳

    公开(公告)号：JP2010216046A

    公开(公告)日：2010-09-30

    申请号：JP2009066155

    申请日：2009-03-18

    Applicant: Kanai Hiroaki ,  金井 宏彰

    Inventor： MORIOKA AKITAKA

    IPC: D07B1/06 ,  B60C9/00

    CPC classification number: D07B1/0626 ,  D07B2201/2016 ,  D07B2201/206 ,  D07B2801/12

    Abstract: PROBLEM TO BE SOLVED: To provide a steel cord for reinforcing a rubber product which is useful as a reinforcing material for rubber products such as vehicle tires, industrial belts, or the like with extreme flatness and excellent fatigue resistance.
    SOLUTION: The steel cord of 3+8 structure has a side wire group 5 formed by twisting eight side wires 4a-4h around a core wire group 3 composed of 3 core wires 2a-2c. The core wires 2a-2c are arranged mutually substantially in parallel and substantially linearly in one direction in a cord cross section. In the eight side wires 4a-4h, the side wires 4a, 4d, 4e and 4h positioned at both end sides in a longitudinal direction in the cord cross section of the core wire group 3 have gaps between them and the core wires 2a and 2c at both end sides of the core wire group 3 and the side wires 4b, 4c, 4f and 4g positioned off from both end sides in a longitudinal direction in the cord cross section of the core wire group 3 are contact with any one of the 3 core wires and a line connecting the centers of the side wires 4a-4h to the center of the fourth side wire from the center on the cord cross section is passed through approximately the center of the core wire group 3 to provide the steel cord with flatness and excellent fatigue resistance.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 解决的问题：提供一种用于加强橡胶制品的钢丝帘线，该橡胶制品可用作具有非常平坦度和优异的抗疲劳性的诸如车辆轮胎，工业皮带等的橡胶制品的增强材料。 解决方案：3 + 8结构的钢丝帘线具有通过将由三个芯线2a-2c组成的芯线组3缠绕在一起的八条侧线4a-4h而形成的侧线组5。 芯线2a-2c在帘线横截面中基本平行且相对于一个方向基本上线性地布置。 在八条侧线4a-4h中，位于芯线组3的帘线横截面中的纵向两端侧的侧线4a，4d，4e和4h在它们与芯线2a和2c之间具有间隙 在芯线组3的帘线横截面中的芯线组3的两端侧和从长度方向的两端侧离开的侧线4b，4c，4f，4g与3芯线组中的任一个接触 芯线和从线缆横截面的中心连接侧线4a-4h的中心到第四侧线的中心的线大致穿过芯线组3的中心，以提供具有平坦度的钢丝帘线 并具有优异的耐疲劳性。 版权所有（C）2010，JPO＆INPIT

    Pneumatic tire
    118.
    发明专利
    Pneumatic tire 有权
    气动轮胎

    公开(公告)号：JP2012148644A

    公开(公告)日：2012-08-09

    申请号：JP2011007882

    申请日：2011-01-18

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

    Inventor： KOYAMA YUJI

    IPC: B60C9/20

    CPC classification number: D07B1/062 ,  D07B2201/2016 ,  D07B2201/2029 ,  D07B2201/2051 ,  D07B2201/206 ,  D07B2801/12

    Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire that can achieve weight reduction without degrading durability and productivity.SOLUTION: The pneumatic tire includes: a bead; a sidewall; a tread; a carcass reinforcing them; and a belt having at least two layers of cross belt layers on the outside of a crown part of the carcass in the tire radial direction. At least one layer of reinforcing member of the cross belt layer is steel cords 10 comprised of a core formed by disposing two core filaments 11 in parallel without being twisted and six sheath filaments 12 twisted around the core. If a core filament diameter is dc and sheath filament diameter is ds, an average sheath filament interval D expressed by the following formula is 25 to 80 μm and an interval between adjacent ones of steel cords 10 is 0.50-1.40 mm: D=[L-6 ds{1+(L/p)}]/6, where L=(π+2)dc+πds.

    Abstract translation: 要解决的问题：提供一种能够在不降低耐久性和生产率的情况下实现减重的充气轮胎。 解决方案：充气轮胎包括：胎圈; 侧壁 胎面 胴体加强它们; 以及在轮胎径向上在胎体的胎冠部分的外侧上具有至少两层交叉带层的带。 交叉带束层的至少一层加强构件是钢帘线10，其由通过将两个芯丝11平行布置而不被扭转而形成的芯部和六根围绕芯部绞合的鞘丝12组成。 如果芯丝直径为直径，鞘丝直径为ds，则由下式表示的平均护套长丝间隔D为25〜80μm，相邻的钢丝帘线10之间的间隔为0.50-1.40mm：D = [L -6dsä1+（L / p） 2 } 1/2 ] / 6，其中L =（π+ 2） +πds。 版权所有（C）2012，JPO＆INPIT

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