Steel cord for reinforcing rubber article and pneumatic tire
    83.
    发明授权
    Steel cord for reinforcing rubber article and pneumatic tire 有权
    用于加强橡胶制品和充气轮胎的钢丝绳

    公开(公告)号:US08601782B2

    公开(公告)日:2013-12-10

    申请号:US13127925

    申请日:2009-11-13

    Inventor: Keisuke Nakamura

    Abstract: A steel cord for reinforcing a rubber article has a multi-twisted structure formed by twisting a plurality of sheath strands (2) formed by twisting a plurality of wires around a core strand (1) formed by twisting a plurality of wires, and the core strand (1) and the sheath strands (2) include at least a 2-layer-twisted structure formed by twisting core wires and sheath wires respectively. The relationship represented by the following formula 1.8≦[(S·cos2α)/{r·(φ1+φ2)}]×100≦4.2 is satisfied, wherein φ1: the diameter of an outermost wire of the strand (1), φ2: the diameter of an outermost wire of the strand (2), r: the center distance between the strand (1) and the strand (2), S: the cross section of the strand (2), and α: the twist angle of the strand (2).

    Abstract translation: 用于加强橡胶制品的钢丝帘线具有多股扭转结构,该多股扭绞结构是通过扭绞多条鞘股线(2)而形成的,所述多股护套股线(2)是通过扭绞多条金属线而形成的芯股线(1) 股线(1)和鞘股线(2)至少包括通过分别扭绞芯线和护套线形成的至少2层扭曲结构。 满足以下公式1.8 @ [(S·cos2alpha)/ {r·(phi1 + phi2)}]×100@4.2表示的关系,其中,phi1:股线(1)的最外线的直径,phi2 :股线(2)的最外线的直径r:股线(1)和股线(2)之间的中心距离,S:股线(2)的横截面,α:扭转角 的链(2)。

    Synthetic sling whose component parts have opposing lays
    87.
    发明申请
    Synthetic sling whose component parts have opposing lays 有权
    合成吊带的组成部分具有相反的布置

    公开(公告)号:US20090108603A1

    公开(公告)日:2009-04-30

    申请号:US12082591

    申请日:2008-04-11

    Abstract: A sling for industrial lifting made of a load-bearing core and a cover. The cover protects the plurality of yarns that make-up the core. Each core yarn is made of a number of core threads twisted together. The core yarns are twisted together where the twist is in the same direction as the individual core strands and a different direction than the twist of the cover. The present invention describes the method of twisting the core yarns together by inserting core yarns substantially parallel into a cover that has a twist opposite of each core strand. As the core strands are inserted into the cover, the twists of the individual core yarns interact with the twist of the cove, resulting in the core yarns twisting together.

    Abstract translation: 用于工业提升的吊索由承重芯和盖组成。 盖保护构成芯的多根纱线。 每个芯纱由多个绞合在一起的芯线制成。 芯纱被捻合在一起,其中扭转方向与单个芯股线相同,并且方向与盖子的扭转方向不同。 本发明描述了通过将基本上平行于具有与每个芯股线相对的扭曲的盖子的芯纱线插入的方式来将芯纱线捻合在一起。 当芯线插入到盖子中时,单个芯线的扭曲与海湾的扭转相互作用,导致芯纱线扭转在一起。

    Pneumatic tire with metal cord and method of manufacturing metal cord
    88.
    发明授权
    Pneumatic tire with metal cord and method of manufacturing metal cord 失效
    带金属绳的气动轮胎及其制造方法

    公开(公告)号:US07493748B2

    公开(公告)日:2009-02-24

    申请号:US11199153

    申请日:2005-08-09

    Applicant: Hiroki Sarashi

    Inventor: Hiroki Sarashi

    Abstract: A pneumatic tire includes metal cords each made of metal filaments twisted together, the metal cords having an initial elongation in a range of from 0.05 to 0.20% and a standard deviation of the initial elongation in a range of not more than 0.02. A method of manufacturing the metal cord comprises shaping metal filaments in a two-dimensional zigzag waveform, and twisting the shaped metal filaments together, wherein the number of the filaments is in a range of from 8 to 12, the metal filaments have the same diameter (d) of from 0.15 to 0.30 mm, the shaped metal filaments have the same zigzag waveforms, the zigzag waveform of each said shaped metal filament has constant wave lengths (P) and constant wave heights (h) wherein the ratio (P/d) is in the range of 100/3 to 700/3, and the ratio (h/d) is in the range of 5/3 to 80/3.

    Abstract translation: 充气轮胎包括金属丝,金属帘线由金属丝绞合在一起,金属帘线的初始伸长率在0.05至0.20%的范围内,初始伸长率的标准偏差不大于0.02。 一种制造金属帘线的方法包括以二维之字形波形成形金属丝,并将成形的金属丝捻合在一起,其中细丝的数量在8至12的范围内,金属细丝具有相同的直径 (d)为0.15〜0.30mm,成形金属丝具有相同的之字形波形,每个所述成形金属细丝的之字形波形具有恒定波长(P)和恒定波高(h),其中比率(P / d )在100/3〜700/3的范围内,比率(h / d)在5/3〜80/3的范围内。

    Steel Cord, Rubber-Steel Cord Composite and Tire
    89.
    发明申请
    Steel Cord, Rubber-Steel Cord Composite and Tire 审中-公开
    钢丝绳,橡胶钢丝绳复合轮胎

    公开(公告)号:US20090000717A1

    公开(公告)日:2009-01-01

    申请号:US12279219

    申请日:2007-02-07

    Inventor: Kiyoshi Ikehara

    Abstract: A steel cord that is especially useful for reinforcing a crown portion of a tire is provided. In particular, a steel cord free from manufacturing problems existed in the conventional art and allowing for stable quality and good production efficiency is provided, and a rubber-steel cord composite and a tire that are equipped with the same are provided.A steel cord has a multiple-twist structure including N (N=2 to 8) strands 2 that are twisted together, each strand 2 having a plurality of wires 1 that are twisted together. When the diameter of each strand is denoted by d (mm), the diameter of a circle circumscribing the cord is denoted by D (mm), and the twisting pitch of the cord is denoted by P (mm), εc defined by the following expression, εc=√(−b/2+√(b2/4−c))−1 (where b denotes −1+π2(−4R2+d2)/P2, c denotes π2d2k(4π2R2+P2)/P4, R denotes (D−d)/2, and k denotes tan2(π/2−π/N)), satisfies εc≧0.005.

    Abstract translation: 提供了特别可用于加强轮胎胎冠部分的钢丝帘线。 特别地,在传统技术中存在无制造问题的钢丝帘线,并且提供了稳定的质量和良好的生产效率,并且提供了装备有它们的橡胶 - 钢帘线复合材料和轮胎。 钢丝帘线具有扭绞在一起的N(N = 2〜8)股2的多捻结构,每股2具有多个捻合在一起的线1。 当每条线的直径用d(mm)表示时,用绳索表示的圆的直径由D(mm)表示,绳的扭转间距用P(mm)表示,ε由下式定义 表达式,epsilonc =√(-b / 2 +√(b2 / 4-c))-1(其中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)),满足ε= 0.005。

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