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    Steel cord, method of making the same and pneumatic tire including the same
    93.
    发明授权
    Steel cord, method of making the same and pneumatic tire including the same 失效
    钢丝帘线及其制造方法以及包括其的充气轮胎

    公开(公告)号：US06959745B2

    公开(公告)日：2005-11-01

    申请号：US10386476

    申请日：2003-03-13

    Applicant: Shinichi Miyazaki ,  Kazumi Yamazaki ,  Osamu Toda

    Inventor： Shinichi Miyazaki ,  Kazumi Yamazaki ,  Osamu Toda

    IPC: B60C9/00 ,  B60C9/20 ,  D07B1/06 ,  D07B7/02

    CPC classification number: D07B1/0646 ,  D07B7/025 ,  D07B2201/2007 ,  D07B2201/2022 ,  D07B2201/2024 ,  D07B2205/3057 ,  D07B2501/2046 ,  Y10S57/902 ,  D07B2801/10

    Abstract: A steel cord is composed of three to six steel filaments each having a filament diameter of from 0.25 to 0.45 mm, the three to six steel filaments including shaped filaments and twisted together, wherein the shaped filaments are, before twisted together, coiled to be set in a form of coil having a coil diameter of less than 5 mm and a coil pitch of more than 5 mm, the shaped filaments include at least two kinds of shaped filaments which are different in respect of the form of coil, the shaped filaments are twisted together while the coil diameter is reduced, the elongation of the cord at 50 N load is less than 0.2%, and the cord strength is in a range of from 2500 to 3500 N/sq.mm.

    Abstract translation: 钢帘线由长丝直径为0.25至0.45mm的三至六根钢丝组成，三至六根钢丝包括成形长丝并扭绞在一起，其中成形长丝在扭绞在一起之前被卷绕成待设定 线圈直径小于5mm且线圈间距大于5mm的线圈形状，成形长丝包括至少两种在线圈形状上不同的成形长丝，成形长丝为 当线圈直径减小时，在50N负载下的帘线的伸长率小于0.2％，帘线强度在2500至3500N / sq.mm的范围内。

    Flattened helical tire cord
    94.
    发明申请
    Flattened helical tire cord 有权
    扁平螺旋轮胎帘线

    公开(公告)号：US20050144926A1

    公开(公告)日：2005-07-07

    申请号：US10509355

    申请日：2003-04-07

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

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

    IPC: D07B1/06 ,  D02G3/36

    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。

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