Steel cord
    7.
    发明授权
    Steel cord 失效
    钢丝绳

    公开(公告)号:US07870715B2

    公开(公告)日:2011-01-18

    申请号:US12438884

    申请日:2006-08-31

    Inventor: Yukimasa Fukuda

    Abstract: There is provided a steel cord including a plurality of untwisted core filaments of steel aligned in parallel, and a layer of sheath filaments of steel twisted around the core filaments so as to be unevenly distributed around the core filaments, wherein interstices between the filaments are maintained during vulcanization thereby achieving improved rubber penetration (sufficiently adhering rubber to the core filaments). Since the cross sectional length of the steel cord 10 is greater than the minimum cross sectional length, interstices A are maintained between sheath filaments 14 under the tension and pressure p of the surrounding rubber 16 applied to the steel cord 10 during vulcanization. Rubber 16 penetrates into the steel cord 10 through the interstices A, and sufficiently adhere to core filaments 12 to achieve high rubber penetration.

    Abstract translation: 提供了一种钢帘线,其包括平行排列的钢的多根未绞纹的芯丝,以及围绕芯丝扭转的钢丝鞘,以便不均匀地分布在芯丝周围,其中长丝之间的间隙被保持 在硫化期间,由此可实现橡胶渗透性的提高(橡胶与芯丝充分粘合)。 由于钢帘线10的横截面长度大于最小横截面长度,所以在硫化期间在施加到钢帘线10的周围橡胶16的张力和压力p之间,在护套丝14之间保持空隙A. 橡胶16通过间隙A渗透到钢帘线10中,并充分粘附到芯丝12上以实现高橡胶渗透。

    STEEL CORD
    9.
    发明申请
    STEEL CORD 失效
    钢丝绳

    公开(公告)号:US20100005774A1

    公开(公告)日:2010-01-14

    申请号:US12438884

    申请日:2006-08-28

    Inventor: Yukimasa Fukuda

    Abstract: There is provided a steel cord including a plurality of untwisted core filaments of steel aligned in parallel, and a layer of sheath filaments of steel twisted around the core filaments so as to be unevenly distributed around the core filaments, wherein interstices between the filaments are maintained during vulcanization thereby achieving improved rubber penetration (sufficiently adhering rubber to the core filaments). Since the cross sectional length of the steel cord 10 is greater than the minimum cross sectional length, interstices A are maintained between sheath filaments 14 under the tension and pressure p of the surrounding rubber 16 applied to the steel cord 10 during vulcanization. Rubber 16 penetrates into the steel cord 10 through the interstices A, and sufficiently adhere to core filaments 12 to achieve high rubber penetration.

    Abstract translation: 提供了一种钢帘线,其包括平行排列的钢的多根未绞纹的芯丝,以及围绕芯丝扭转的钢丝鞘,以便不均匀地分布在芯丝周围,其中长丝之间的间隙被保持 在硫化期间,由此可实现橡胶渗透性的提高(橡胶与芯丝充分粘合)。 由于钢帘线10的横截面长度大于最小横截面长度,所以在硫化期间在施加到钢帘线10的周围橡胶16的张力和压力p之间,在护套丝14之间保持空隙A. 橡胶16通过间隙A渗透到钢帘线10中,并充分粘附到芯丝12上以实现高橡胶渗透。

    STEEL CORD, COMPOSITE OF RUBBER AND STEEL CORD, AND TIRE
    10.
    发明申请
    STEEL CORD, COMPOSITE OF RUBBER AND STEEL CORD, AND TIRE 失效
    钢丝绳,钢丝绳和轮胎的复合材料

    公开(公告)号:US20100000645A1

    公开(公告)日:2010-01-07

    申请号:US12440935

    申请日:2007-08-23

    Inventor: Kiyoshi Ikehara

    Abstract: A steel cord which has no production problem noted in the related art and which can be produced efficiently with stable quality, particularly a steel cord useful for the purpose of reinforcing a tire crown portion, as well as a composite of rubber and steel cord and a tire, which include the steel cord, are provided.A steel cord has a multi-twist structure in which N (N=2 to 8) strands 2 are twisted, each strand 2 being formed by twisting a plurality of element wires 1 and having a substantially elliptical cross-section, wherein d1/d2>1.08 is satisfied, where the major diameter of the strand 2 is represented by d1 and the minor diameter is represented by d2, and εc defined by the following equation: εc=√{square root over ( )}(−b/2+√{square root over ( )}(b2/4−c))−1 (in the equation, b represents −1+π2(−4R2+d2)/P2, c represents π2d2k(4π2R2+P2)/P4, R represents (D−d)/2, k represents tan2(π/2−π/N), and d represents (d1+d2)/2) satisfies εc>0.005, where the diameter of a circle circumscribing the cord is represented by D (mm) and the twist pitch of the cord is represented by P (mm).

    Abstract translation: 现有技术中没有注意到生产问题的钢丝帘线,其质量可以有效地生产,特别是用于加强轮胎胎面部分的钢帘线,以及橡胶和钢帘线和 提供包括钢丝绳的轮胎。 钢丝帘线具有N(N = 2〜8)股2绞合的多捻结构,每股2是通过扭转多个元件丝1而形成的,具有大致椭圆形的横截面,其中d1 / d2 > 1.08,其中股2的主直径由d1表示,小直径由d2表示,epsilon由以下等式定义:epsilon =√{平方根超过()}( - b / 2 + √(平方根超过()}(b2 / 4-c))-1(在等式中,b表示-1 + pi2(-4R2 + d2)/ P2,c表示pi2d2k(4pi2R2 + P2)/ P4,R 表示(Dd)/ 2,k表示tan2(pi / 2-pi / N),d表示(d1 + d2)/ 2)满足ε≥0.005,其中,用绳索包围的圆的直径由D( mm),绳索的捻距由P(mm)表示。

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