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    Pneumatic tyre
    201.
    发明公开
    Pneumatic tyre 审中-公开

    公开(公告)号：EP1112868A2

    公开(公告)日：2001-07-04

    申请号：EP00311659.7

    申请日：2000-12-22

    Applicant: Sumitomo Rubber Industries Ltd.

    Inventor： Ohya, Yukihide, Sumitomo Rubber Industries, Ltd.

    IPC: B60C9/02 ,  B60C9/00 ,  D07B1/06

    CPC classification number: D07B1/062 ,  B60C9/0007 ,  B60C9/02 ,  D07B2201/2018 ,  D07B2201/2023 ,  D07B2201/2025 ,  D07B2201/2028 ,  D07B2201/2029 ,  D07B2201/2061 ,  D07B2501/2046 ,  D07B2801/12

    Abstract: A pneumatic tyre (1) comprises a tread portion (2), a pair of sidewall portions (3), a pair of bead portions (4), and a carcass ply (6) of steel cords (10) extending between the bead portions (4) through the tread portion (2) and sidewall portions (3). Each of the carcass cords (10) comprises a number "n" of steel filaments (F) each having a diameter (d) of from 0.17 to 0.40 mm. The steel filaments (F) are twisted together to have a "1Xn" bundle-twist structure or an interlace-twist structure. In a vicinity of the maximum tyre section width point P of each of the sidewall portions, a sectional shape coefficient S of each carcass cord is set in a range of from 0.5 to 0.9, wherein the sectional shape coefficient S is (d 2 X n)/(L1 X L2), "n" is the number of the filaments, "d" is the average of the diameters of the filaments, "L1" is the largest measure of distance between two extremities of the cord which occurs in a direction in a cross section of the cord, and "L2" is the measure of distance between two extremities of the cord in a direction perpendicular to the above-mentioned direction.

    Steel cord for reinforcing a rubber product
    203.
    发明公开
    Steel cord for reinforcing a rubber product 失效
    Stahlseil zurVerstärkungelastomerer Erzeugnisse

    公开(公告)号：EP0711868A1

    公开(公告)日：1996-05-15

    申请号：EP95117868.0

    申请日：1995-11-13

    Applicant: BRIDGESTONE METALPHA CORPORATION

    Inventor： Ishizaka, Hiroki, c/o Bridgestone Metalpha Corp.

    IPC: D07B1/06

    CPC classification number: D07B1/062 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/2021 ,  D07B2201/2028 ,  Y10S57/902

    Abstract: A steel cord which is suitable for reinforcing a rubber product and has excellent fatigue resistance. The steel cord has a layer-twisted structure formed by steel filaments respectively having a diameter of 0.15 mm to 0.25 mm. A core of the steel cord is formed by 1 to 4 steel filaments. A least 6 steel filaments are wound around the steel filaments of the core to form at least one layer. When the steel cord is bent from a straight state to a state in which a radius of curvature thereof is d/(17 x 10⁻³) wherein d is a diameter in millimeters of each steel filament in an outermost layer of the steel cord, a maximum amount of movement of each steel filament in the outermost layer in a cross-section of the steel cord is less than or equal to (-0.5454d + 0.1454) x 10³ um. The steel cord preferably has a two-layer-twisted structure or a three-layer-twisted structure, and has an arrangement in which the diameters of the steel filaments gradually decrease from the core to the outermost layer.

    Abstract translation: 适用于加强橡胶制品，耐疲劳性优良的钢丝绳。 钢帘线具有由直径为0.15mm至0.25mm的钢丝形成的层状扭曲结构。 钢帘线的芯由1至4根钢丝形成。 在芯的钢丝上缠绕至少6根钢丝，形成至少一层。 当钢帘线从直线状态弯曲到其曲率半径为d /（17×10 <3>）的状态时，其中d是最外层中的每根钢丝的直径（以毫米计） 钢帘线在钢帘线的截面中最外层的每根钢丝的最大移动量小于或等于（-0.5454d + 0.1454）×10 -3。 钢帘线优选具有双层扭曲结构或三层扭曲结构，并且具有其中钢丝的直径从芯到最外层逐渐减小的布置。

    Steel cords for rubber reinforcement and pneumatic radial tires using the same
    206.
    发明公开
    Steel cords for rubber reinforcement and pneumatic radial tires using the same 失效
    Stahlcord zurGummiverstärkungund derVerstärkungradialer Luftreifen。

    公开(公告)号：EP0488735A1

    公开(公告)日：1992-06-03

    申请号：EP91311023.5

    申请日：1991-11-28

    Applicant: Bridgestone Corporation

    Inventor： Kuriya, Yoshinori ,  Umezawa, Yujiro

    IPC: B60C9/00 ,  D07B1/06

    CPC classification number: D07B1/062 ,  B60C9/0007 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/2023 ,  D07B2201/2028 ,  D07B2201/2098 ,  Y10S57/902

    Abstract: A steel cord for the reinforcement of rubber articles comprises a central basic layer (1) comprised of 1 to 4 steel filaments, at least one coaxial layer (2,3) arranged around the central basic layer and comprised of steel filaments which are twisted in the same twisting direction at the same twisting pitch, and a wrap filament (4) spirally wound around the coaxial layer in the same twisting direction. Such a steel cord may be suitably used as a carcass cord ply of a pneumatic radial tire.

    Abstract translation: 用于加强橡胶制品的钢丝帘线包括由1至4根钢丝组成的中心基层（1），至少一个同轴层（2,3），围绕中央基层布置，并由钢绞线组成 在相同的扭转方向上具有相同的扭转方向，以及在同一扭转方向上螺旋地缠绕在同轴层上的缠绕丝（4）。 这种钢丝绳可以适合用作充气子午线轮胎的胎体帘布层。

    STEEL CORD FOR RUBBER ARTICLES
    208.
    发明公开
    STEEL CORD FOR RUBBER ARTICLES 失效
    钢丝橡胶物体。

    公开(公告)号：EP0155287A1

    公开(公告)日：1985-09-25

    申请号：EP84903272.0

    申请日：1984-09-03

    Applicant: N.V. BEKAERT S.A.

    Inventor： YAMADA, Yoshiaki ,  NISHIKAWA, Michio

    IPC: D07B1 ,  D07B3 ,  D07B7

    CPC classification number: D07B1/062 ,  D07B1/0633 ,  D07B1/0646 ,  D07B7/025 ,  D07B2201/2028

    Abstract: Un câble d'acier de renforcement d'un article en caoutchouc tel qu'un pneumatique, une bande transporteuse, un tuyau pour haute pression, consiste en une pluralité de filaments d'acier torsadés dans la même direction de torsion et avec le même pas de torsion. Selon l'invention, les filaments sont déformés en spirale de manière à ne pas introduire de contraintes de torsion ou de composantes de déformation. Ceci est obtenu à l'aide de dispositifs de préformage combinés à une machine de torsion tubulaire, comprenant des bobines de filaments montées dans la machine et dont le nombre correspond à celui des filaments nécessaires pour les différentes couches respectives, y compris toute âme du câble d'acier multicouche. En éliminant les composantes de torsion agissant sur les filaments, la résistance à la fatigue, la stabilité d'adhésion et la productivité de fabrication sont améliorées.

    RUBBER-ARTICLE-REINFORCING STEEL CORD AND TIRE
    210.
    发明公开
    RUBBER-ARTICLE-REINFORCING STEEL CORD AND TIRE 审中-公开
    橡胶制品加固钢丝帘线和轮胎

    公开(公告)号：EP3252228A1

    公开(公告)日：2017-12-06

    申请号：EP16743591.6

    申请日：2016-01-29

    Applicant: Bridgestone Corporation

    Inventor： OKAZAKI Ryota

    IPC: D07B1/06 ,  B60C9/00

    CPC classification number: D07B1/0626 ,  B60C9/00 ,  B60C9/0007 ,  D07B1/06 ,  D07B1/062 ,  D07B2201/2006 ,  D07B2201/2023 ,  D07B2201/2028 ,  D07B2201/2039 ,  D07B2201/2051 ,  D07B2201/2061 ,  D07B2201/2066 ,  D07B2201/2068 ,  D07B2205/3057 ,  D07B2801/12 ,  D07B2801/10

    Abstract: Provided is a rubber article-reinforcing steel cord having improved shear fatigue resistance while reducing the weight of the steel cord by using a wire of high tensile strength. The rubber article-reinforcing steel cord 10 is a steel cord 10 having a two-layer twisted structure comprising a core filament 11 composed of a plurality of filaments and a sheath filament 12 composed of a plurality of filaments twisted around the core filament 11, wherein the tensile strength of the core filament 11 is higher than the tensile strength of the sheath filament 12, and the core filament 11 and the sheath filament 12 are twisted together in the same direction and the same pitch.

    Abstract translation: 本发明提供一种橡胶制品强化用钢丝帘线，其通过使用高拉伸强度的钢丝来减轻钢丝帘线的重量，同时提高耐剪切疲劳性。 橡胶制品加强钢丝帘线10是具有由多根长丝构成的芯丝11和由缠绕在芯丝11上的多根长丝构成的鞘丝12的双层加捻结构的钢丝帘线10， 芯丝11的拉伸强度比外皮12的拉伸强度高，并且芯丝11和外鞘丝12以相同方向和相同间距捻合在一起。

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