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    Steel Cord, Rubber-Steel Cord Composite and Tire
    1.
    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

    Applicant: Kiyoshi Ikehara

    Inventor： Kiyoshi Ikehara

    IPC: B60C9/00

    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: 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。

    STEEL CORD AND ELASTIC CRAWLER USING SAME
    3.
    发明申请
    STEEL CORD AND ELASTIC CRAWLER USING SAME 审中-公开
    使用相同的钢丝绳和弹性克隆

    公开(公告)号：US20150368859A1

    公开(公告)日：2015-12-24

    申请号：US14764672

    申请日：2014-02-03

    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD. ,  TOKUSEN KOGYO CO., LTD.

    Inventor： Akihiro NISHIMURA ,  Satoshi YOSHIDA

    IPC: D07B1/06 ,  B62D55/24

    CPC classification number: D07B1/0693 ,  B62D55/244 ,  D07B1/0613 ,  D07B1/062 ,  D07B1/0626 ,  D07B2201/1076 ,  D07B2201/2006 ,  D07B2201/202 ,  D07B2201/2029 ,  D07B2201/2051 ,  D07B2201/2061 ,  D07B2201/2068 ,  D07B2801/24 ,  D07B2801/14

    Abstract: A steel cord is configured so that, when the steel cord is used as a tensile cord for an elastic crawler, a center-core dislocation and the early breakage of the wires of a core are prevented. A steel cord comprises: a core which comprises a single core strand, and a sheath which is formed by twisting together six sheath strands arranged around the core. The core strand has a layer-twisted structure comprising: a center-core portion which is formed by twisting three core wires together; and an external layer portion which is formed by twisting together eight to nine core wires arranged around the center-core portion. The sheath strands each have either a bundle twisted structure which is formed by twisting twelve to nineteen sheath wires or a multi-layer twisted structure which is formed by twisting twelve to nineteen sheath wires in layers. The diameter (dc) of the core wires is greater than the diameter (ds) of the sheath wi res. The average gap (Gc) between the core wi res of the external layer portion is 0.015 mm or greater, and the average gap (Gs) between the sheath strands is 0.1 mm or greater.

    Abstract translation: 钢帘线被配置为使得当钢帘线用作弹性履带的拉伸绳时，可防止芯的中心位错和芯的线的早期断裂。 钢丝帘线包括：包括单股股线的芯和通过将布置在芯周围的六根鞘股线绞合在一起形成的护套。 芯线具有层状扭曲结构，包括：通过将三根芯线绞合在一起而形成的中心部分; 以及通过将排列在中心部分周围的8〜9根芯线绞合而形成的外层部。 护套线束均具有通过扭曲十二至十九个鞘线而形成的束扭转结构，或者是通过将十二至十九个护套线层叠形成的多层扭曲结构。 芯线的直径（dc）大于护套的直径（ds）。 外层部的纤芯间的平均间隙（Gc）为0.015mm以上，鞘股之间的平均间隙（Gs）为0.1mm以上。

    STEEL CORD, COMPOSITE OF RUBBER AND STEEL CORD, AND TIRE
    4.
    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

    Applicant: Kiyoshi Ikehara

    Inventor： Kiyoshi Ikehara

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

    CPC classification number: B60C9/0007 ,  B60C9/22 ,  D07B1/0613 ,  D07B1/0633 ,  D07B1/0653 ,  D07B5/10 ,  D07B2201/1004 ,  D07B2201/1076 ,  D07B2201/2006 ,  D07B2201/2018 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/2029 ,  D07B2201/2039 ,  D07B2201/204 ,  D07B2201/2051 ,  D07B2201/206 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2801/12

    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。

    Elevator rope
    7.
    发明授权
    Elevator rope 有权
    电梯绳

    公开(公告)号：US09162849B2

    公开(公告)日：2015-10-20

    申请号：US14362794

    申请日：2012-01-23

    Applicant: Atsushi Mitsui

    Inventor： Atsushi Mitsui

    IPC: B66B7/06 ,  D07B1/08 ,  D07B1/06 ,  D07B1/16 ,  D07B1/14

    CPC classification number: B66B7/06 ,  D07B1/068 ,  D07B1/08 ,  D07B1/144 ,  D07B1/165 ,  D07B2201/1016 ,  D07B2201/102 ,  D07B2201/1036 ,  D07B2201/1076 ,  D07B2201/2057 ,  D07B2201/2073 ,  D07B2201/2074 ,  D07B2205/201 ,  D07B2801/14 ,  D07B2801/24

    Abstract: In an elevator rope, a plurality of steel outer layer strands are twisted together on an outer circumference of an inner layer rope. The inner layer rope has: a fiber core; a plurality of steel inner layer strands that are twisted together directly onto an outer circumference of the fiber core; and a resin inner layer rope coating body that is coated onto the outer circumference. A diameter of the inner layer strands is smaller than a diameter of the outer layer strands. The inner layer strands are greater in number than the outer layer strands.

    Abstract translation: 在电梯绳索中，多个钢外层股线在内层绳索的外周上被扭绞在一起。 内层绳具有：纤维芯; 多个钢内层股线，其直接扭绞在纤维芯的外周上; 以及涂布在外周上的树脂内层绳索涂布体。 内层股线的直径小于外层股线的直径。 内层股线数量多于外层股线。

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