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    RUBBER ARTICLE-REINFORCING STEEL CORD AND PNEUMATIC TIRE
    271.
    发明申请
    RUBBER ARTICLE-REINFORCING STEEL CORD AND PNEUMATIC TIRE 有权
    橡胶制品钢筋和气动轮胎

    公开(公告)号：US20120043003A1

    公开(公告)日：2012-02-23

    申请号：US13266549

    申请日：2010-04-28

    Applicant: Hideki Masubuchi ,  Keisuke Nakamura

    Inventor： Hideki Masubuchi ,  Keisuke Nakamura

    IPC: B60C9/02 ,  D02G3/02

    CPC classification number: B60C9/0007 ,  B60C9/2006 ,  B60C2009/0085 ,  B60C2009/2077 ,  B60C2009/209 ,  B60C2009/2093 ,  D07B1/0613 ,  D07B2201/2006 ,  D07B2201/2061 ,  D07B2801/24

    Abstract: Provided is a steel cord for reinforcing a rubber article, which has an improved durability against so-called cuts, such as notches and perforations, which are generated in the case of treading on an obtusely or sharply pointed projection, without decreasing the strength in the axial direction of the cord, and without increasing the thickness in the radial direction, namely without increasing the weight of a tire, as well as a tire using the steel cord for reinforcing a rubber article as a reinforcing material, especially a construction vehicle tire. Also provided is a steel cord for reinforcing rubber articles with a multi-twisted structure formed by twisting a plurality of sheath strands formed by twisting a plurality of wires around a core strand formed by twisting a plurality of wires, and the core strand being constituted of an at least three-layer-twisted structure formed by twisting core filaments and sheath filaments. The lowest tensile breaking strength of filament bs and the tensile breaking strength of steel cord Bc satisfy the relationship represented by the following formula: bs/Bc×100≧0.65.

    Abstract translation: 提供一种用于加强橡胶制品的钢丝绳，其具有改进的耐受性，即在踩在钝角或尖锐的突出部上的情况下产生的所谓的切口（例如切口和穿孔），而不会降低 并且不增加径向厚度，即不增加轮胎的重量，以及使用钢帘线加强作为增强材料的橡胶制品，特别是工程车辆轮胎的轮胎。 还提供了一种用于加强橡胶制品的钢丝帘线，其具有通过扭转通过扭绞多根丝线而形成的多股线缠绕而形成的多根鞘线而形成的多股线条，芯线由 通过扭绞芯丝和鞘细丝形成的至少三层扭曲结构。 细丝bs的拉伸断裂强度最低，钢丝帘线Bc的拉伸断裂强度满足下式所示的关系：bs / Bc×100≥0.65。

    Steel cord, composite of rubber and steel cord, and tire
    272.
    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

    Applicant: Kiyoshi Ikehara

    Inventor： Kiyoshi Ikehara

    IPC: D02G3/02 ,  D02G3/48

    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 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。

    High-strength prestressing strand, method for manufacturing the same, and concrete construction using the same
    274.
    发明授权
    High-strength prestressing strand, method for manufacturing the same, and concrete construction using the same 有权
    高强度预应力钢筋，其制造方法及使用其的混凝土结构

    公开(公告)号：US07861507B2

    公开(公告)日：2011-01-04

    申请号：US11993454

    申请日：2007-02-21

    Applicant: Tomoya Maekawa ,  Toshihiko Niki ,  Takashi Ichiki

    Inventor： Tomoya Maekawa ,  Toshihiko Niki ,  Takashi Ichiki

    IPC: D02G3/02

    CPC classification number: D07B1/0693 ,  C21D8/065 ,  D07B2201/2006 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/2039 ,  D07B2201/2051 ,  D07B2201/2059 ,  D07B2205/3057 ,  D07B2401/201 ,  D07B2501/2023 ,  E04C5/08 ,  D07B2801/10 ,  D07B2801/12

    Abstract: In one aspect, the present disclosure relates to a high-strength prestressing strand having a seven-wire structure in which one core wire and six outer wires are stranded. An external diameter of the strand is from 15.0 mm to 16.1 mm, a total cross-sectional area of the strand is 135 mm2 or more, and a load at 0.2% permanent elongation is 266 kN or more. A relaxation value measured after a 1000-hour relaxation test is 2.5% or lower and a diameter of the core wire is 5.35±0.3 mm and a diameter of the outer wires is 5.15±0.25 mm. The core wire and the outer wires each have a composition of at least 0.90% carbon. The prestressing strand is manufactured by stranding the core wire and outer wires, giving a stretching treatment, and giving a bluing treatment at a temperature of 380° C. or more and 430° C. or less after or at the same time with the stretching treatment.

    Abstract translation: 一方面，本公开内容涉及一种具有七线结构的高强度预应力绞线，其中一根芯线和六根外线绞合。 股线的外径为15.0mm至16.1mm，股线的总横截面面积为135mm 2以上，0.2％永久伸长时的负荷为266kN以上。 1000小时松弛试验后测定的松弛值为2.5％以下，芯线直径为5.35±0.3mm，外线直径为5.15±0.25mm。 芯线和外线各自具有至少0.90％碳的组成。 预应力绳是通过将芯线和外线绞合制成的，进行拉伸处理，并且在380℃以上且430℃以下的温度下进行蓝色处理，或者与拉伸同时进行拉伸处理 治疗。

    Flattened helical tire cord
    278.
    发明授权
    Flattened helical tire cord 有权
    扁平螺旋轮胎帘线

    公开(公告)号：US07051506B2

    公开(公告)日：2006-05-30

    申请号：US10509355

    申请日：2003-04-07

    Applicant: Takanori Kobayashi ,  William E. Smith ,  Charles E. Smith, Jr. ,  Noritaka Morioka

    Inventor： Takanori Kobayashi ,  William E. Smith ,  Charles E. Smith, Jr. ,  Noritaka Morioka

    IPC: D02G3/48

    CPC classification number: D07B1/0653 ,  D07B1/0613 ,  D07B1/062 ,  D07B1/0646 ,  D07B2201/2006 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/2029 ,  D07B2201/2033 ,  D07B2201/2039 ,  D07B2201/206 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2801/12

    Abstract: A tire cord having core filaments (10) performed into a helical configuration while maintaining the core filaments (10) in a parallel, side-by-side relationship. The core filaments (10) are not twisted or stranded together. High tensile strength sheath filaments (11) are also performed into a flattened helical configuration so that the sheath filaments (11) can be wrapped around the side-by-side core filaments such that the sheath filaments (11) do not put such tension on the core filaments (10) as to cause the core filaments (10) to bunch. The core filaments (10) are maintained in a flat side-by-side configuration so that no voids are formed and rubber can penetrate into the tire cord. The core filaments (10) may number from three to six and the sheath filaments (11) from one to seven. The cross-section of the tire cord is flattened and confined within an oval-shaped outer bound (21), the oval outer bound (21) being characterized by a major axis and a minor axis. It is desirable that the minor axis be no greater than 60% of the major axis to create the appropriate difference in the bending modulus of the tire cord in the horizontal versus the vertical direction.

    Abstract translation: 一种具有芯丝（10）的轮胎帘线，其执行成螺旋状构造，同时保持芯丝（10）处于并排的并排关系。 芯丝（10）不扭曲或绞合在一起。 高抗拉强度的护套细丝（11）也被进行成扁平的螺旋结构，使得护套细丝（11）可以围绕并排芯丝卷绕，使得护套细丝（11）不会将这种张力放在 芯丝（10）使芯丝（10）束缚。 芯丝（10）保持平坦的并排构造，使得不形成空隙，并且橡胶可以渗透到轮胎帘线中。 芯丝（10）的数量可以从三到六，鞘细丝（11）从一到七。 轮胎帘线的横截面是扁平的并且被限制在椭圆形外边界（21）内，椭圆形外边界（21）的特征在于长轴和短轴。 期望短轴不大于长轴的60％，以产生在水平方向与垂直方向上的轮胎帘线的弯曲模量的适当差异。

    Steel cord having ultrafine steel filaments to reinforce tire carcass and radial tire for passenger car using the same
    279.
    发明申请
    Steel cord having ultrafine steel filaments to reinforce tire carcass and radial tire for passenger car using the same 审中-公开
    具有超细钢丝的钢丝绳，用于加强轮胎胎体和乘用车的子午线轮胎

    公开(公告)号：US20050133140A1

    公开(公告)日：2005-06-23

    申请号：US11014092

    申请日：2004-12-15

    Applicant: Byung Lee ,  Seung Lim ,  Sung Sin ,  Bong Sohn ,  Seok-Ho Kim ,  Dong Lim

    Inventor： Byung Lee ,  Seung Lim ,  Sung Sin ,  Bong Sohn ,  Seok-Ho Kim ,  Dong Lim

    IPC: B60C9/00 ,  B60C9/08 ,  B60C9/20 ,  D07B1/06 ,  B60C9/04 ,  D07B1/08

    CPC classification number: D07B1/062 ,  B60C9/0007 ,  B60C9/08 ,  B60C9/2006 ,  D07B2201/2006 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/2039 ,  D07B2201/2051 ,  D07B2201/2059 ,  D07B2201/2081 ,  D07B2205/3057 ,  D07B2401/208 ,  D07B2501/2046 ,  Y10T152/10855 ,  D07B2801/12 ,  D07B2801/10

    Abstract: The object of this invention is to provide a steel cord, which has ultrafine steel filaments with a diameter of 0.04-0.14 mm stranded with each other so as to reinforce a tire carcass, and a radial tire for a passenger car using the same. The steel cord includes one core filament with a diameter of 0.04-0.14 mm and 4-7 sheath filaments, each having a diameter of 0.04-0.14 mm, spirally stranded around the core filament. At this time, the steel cord has a diameter of 0.2-0.5 mm and shear strength of 25-35 kgf. Additionally, each of the sheath filaments has a smaller diameter than the core filament, and the core filament and the sheath filaments are made of the steel filaments. The radial tire includes the tire carcass provided with the steel cord and a topping sheet, and the steel cord is embedded in the topping sheet such that a rubber gauge ratio is 200-500% and a rubber clearance ratio is 60-250%. The steel cord has improved physical properties, such as shear strength and durability, to reduce a thickness of a carcass including the steel cord, leading to the reduction of a weight of the radial tire. Furthermore, controlling stability and durability of the radial tire are improved, thereby reducing costs of maintenance of the passenger car.

    Abstract translation: 本发明的目的是提供一种钢帘线，其具有彼此绞合的直径为0.04-0.14mm的超细钢丝，以加强轮胎胎体，以及使用该帘线的乘用车的子午线轮胎。 钢帘线包括直径为0.04-0.14mm的一根芯丝和4-7根长丝，各自具有0.04-0.14mm的直径，围绕芯丝螺旋绞合。 此时，钢帘线的直径为0.2-0.5mm，剪切强度为25-35kgf。 另外，每根护套长丝的直径小于芯丝，芯丝和护套长丝由钢丝制成。 子午线轮胎包括设置有钢丝帘线的轮胎胎体和顶板，并且钢帘线嵌入顶片中，使得橡胶规格比为200-500％，橡胶间隙率为60-250％。 钢帘线具有改善的物理性能，例如剪切强度和耐久性，以减少包括钢帘线的胎体的厚度，导致子午线轮胎的重量的降低。 此外，提高了子午线轮胎的稳定性和耐久性，从而降低了乘用车的维护成本。

    Tire cord
    280.
    发明申请
    Tire cord 有权
    轮胎帘线

    公开(公告)号：US20030188525A1

    公开(公告)日：2003-10-09

    申请号：US10118264

    申请日：2002-04-08

    Inventor： Takanori Kobayashi ,  William E. Smith ,  Charles E. Smith JR.

    IPC: D07B001/06

    CPC classification number: D07B1/0653 ,  D07B1/0613 ,  D07B1/062 ,  D07B1/0646 ,  D07B2201/2006 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/2029 ,  D07B2201/2033 ,  D07B2201/2039 ,  D07B2201/206 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2801/12

    Abstract: A tire cord having core filaments preformed into a helical configuration while maintaining the core filaments in a parallel, side-by-side relationship. The core filaments are not twisted or stranded together. High tensile strength sheath filaments are also preformed into a flattened helical configuration so that the sheath filaments can be wrapped around the side-by-side core filaments such that the sheath filaments do not put such tension on the core filaments as to cause the core filaments to bunch. The core filaments are maintained in a flat, side-by-side configation so that no voids are formed and rubber can penetrate into the tire cord. The core filaments may number from three to six and the sheath filaments from one to seven. The cross-section of the tire cord is flattened and confined within an oval-shaped outer bound, the oval outer bound being characterized by a major axis and a minor axis. It is desirable that the minor axis be no greater than 60% of the major axis to created the appropriate difference in the bending modulus of the tire cord in the horizontal versus the vertical direction.

    Abstract translation: 一种轮胎帘线，其具有预先形成螺旋状构造的芯丝，同时将芯丝保持为并排的并排关系。 芯丝不扭曲或绞合在一起。 高抗拉强度的护套细丝也预成形为扁平的螺旋结构，使得护套细丝可以围绕并排芯丝卷绕，使得护套细丝不会在芯丝上施加这种张力，从而使芯丝 束缚 芯丝保持平坦的并排构造，使得不形成空隙，并且橡胶可以穿透到轮胎帘线中。 核心丝可以从三到六，鞘丝从一到七。 轮胎帘线的横截面是扁平的并且被限制在椭圆形的外边界内，椭圆形外边界以长轴和短轴为特征。 期望短轴不大于长轴的60％，以产生轮胎帘线在水平方向与垂直方向上的弯曲模量的适当差异。

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