Steel cord, composite of rubber and steel cord, and tire
    4.
    发明授权
    Steel cord, composite of rubber and steel cord, and tire 失效
    钢丝绳,橡胶和钢丝绳复合材料,轮胎

    公开(公告)号:US08117818B2

    公开(公告)日:2012-02-21

    申请号:US12440935

    申请日:2007-08-23

    Inventor: Kiyoshi Ikehara

    Abstract: 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 εe defined by the following equation: εc=√(−b/2+√(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: 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的大直径由d1表示,小直径由d2表示,并且由以下等式定义:&egr; c =(-b / 2 +√(b2 / 4-c))-1(式中,b表示-1 +&pgr; 2(-4R2 + d2)/ P2,c表示&pgr; 2d2k(4&pgr; 2R2 + P2)/ P4, d)/ 2,k表示tan2(&pgr; / 2-&pgr; / N),d表示(d1 + d2)/ 2)满足&egr; c> 0.005,其中限定帘线的圆的直径由 D(mm),绳索的捻距由P(mm)表示。

    Pneumatic tires
    7.
    发明申请
    Pneumatic tires 失效
    气动轮胎

    公开(公告)号:US20010050127A1

    公开(公告)日:2001-12-13

    申请号:US09800787

    申请日:2001-03-08

    Abstract: A pneumatic tire has a bead core consisting of a single core and plural sheath layers formed by helically winding plural sheath wires around the core, in which an end count of sheath wires in an outermost sheath layer is made smaller than an end count at a close-packed state or each sheath wire constituting a second sheath layer from an outermost side is covered with a coating rubber prior to the winding.

    Abstract translation: 充气轮胎具有由单个芯构成的胎圈芯和通过在芯周围螺旋地缠绕多个护套线而形成的多个护套层,其中使外护套层中的护套线的端数小于封闭端数 在卷绕之前,由涂层橡胶覆盖从最外侧构成第二鞘层的包层状态或每个护套线。

    Steel cords for the reinforcement of rubber articles
    9.
    发明授权
    Steel cords for the reinforcement of rubber articles 失效
    用于加固橡胶制品的钢丝绳

    公开(公告)号:US5595057A

    公开(公告)日:1997-01-21

    申请号:US393893

    申请日:1995-02-24

    Inventor: Yoshinori Kuriya

    Abstract: A steel cord for the reinforcement of rubber articles comprises a core comprised of three steel filaments, a first sheath formed by twisting nine wave-formed steel filaments around the core, and a second sheath formed by twisting fifteen wave-formed steel filaments around the first sheath in a direction opposite to the twisting direction of the first sheath, in which a forming ratio F.sub.1 of each filament in the first sheath and a forming ratio F.sub.2 of each filament in the second sheath are within a range of 0.75-0.95, respectively, and satisfy Fi.sub.1

    Abstract translation: 用于加强橡胶制品的钢帘线包括由三根钢丝构成的芯,通过在芯周围扭转九个波形钢丝而形成的第一护套,以及通过将第一个波纹形钢丝围绕第一 护套与第一护套的扭转方向相反的方向,其中第一护套中的每根细丝的形成比率F1和第二护套中每根细丝的形成比率F2分别在0.75-0.95的范围内, 并满足Fi1

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