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    Steel cord for large-sized pneumatic radial tire
    247.
    发明专利
    Steel cord for large-sized pneumatic radial tire 审中-公开
    用于大尺寸气动辐射轮的钢丝绳

    公开(公告)号：JP2010018942A

    公开(公告)日：2010-01-28

    申请号：JP2009216599

    申请日：2009-09-18

    Applicant: Tokyo Seiko Co Ltd ,  Toyo Tire & Rubber Co Ltd ,  東京製綱株式会社 ,  東洋ゴム工業株式会社

    Inventor： URYU TOMOYUKI ,  TAMADA SATOSHI ,  SATO KATSUHIRO

    IPC: D07B1/06 ,  B60C9/20

    CPC classification number: D07B1/0613 ,  B60C2009/2077 ,  B60C2009/2257 ,  D07B2401/201

    Abstract: PROBLEM TO BE SOLVED: To provide a radial tire with an improved uneven wear of a tread part and improved belt durability.
    SOLUTION: The large-sized pneumatic radial tire T has a cross section with an aspect ratio of not more than 65%, including two layered main belts 12, 13 and a 0° belt 15 with steel cords extending along circumferential direction in substantially 0° angle, wherein the steel cords constituting the 0° belt has an m×n structure (m=3-4, n=2-4), and having a double twist structure with same twisting direction of the strands and cords, and the diameter of the steel cord is smaller than the diameter of the steel cords constituting the main belt, and having a point of inflection Z in an S-S curve using load (N) in a vertical axis and elongation (%) in a lateral axis, and elongation A (%) at the crossing point of the tangential line X of the slope in the low load area with the tangential line Y of the slope over the point of inflection is less than 1.0%.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供具有改善的胎面部分的不均匀磨损和改善带的耐久性的子午线轮胎。 解决方案：大型充气子午线轮胎T具有纵横比不大于65％的横截面，包括两层主带12,13和0°带15，钢帘线沿圆周方向延伸 基本上为0°角，其中构成0°带的钢丝帘线具有m×n结构（m = 3-4，n = 2-4），并且具有与股线和绳索相同扭转方向的双捻结构， 并且钢帘线的直径小于构成主带的钢丝绳的直径，并且在垂直轴上使用负载（N）的SS曲线中具有拐点Z，并且在横轴上具有伸长率（％） ，在低负荷区域的斜率的切线X的交点处的延伸率A（％）与拐点上的斜率的切线Y小于1.0％。 版权所有（C）2010，JPO＆INPIT

    Large-sized pneumatic radial tire
    248.
    发明专利
    Large-sized pneumatic radial tire 审中-公开
    大尺寸气动径向轮胎

    公开(公告)号：JP2009292425A

    公开(公告)日：2009-12-17

    申请号：JP2008150643

    申请日：2008-06-09

    Applicant: Tokyo Seiko Co Ltd ,  Toyo Tire & Rubber Co Ltd ,  東京製綱株式会社 ,  東洋ゴム工業株式会社

    Inventor： URYU TOMOYUKI ,  TAMADA SATOSHI ,  SATO KATSUHIRO

    IPC: B60C9/20 ,  B60C9/00 ,  B60C9/18 ,  B60C9/22 ,  D07B1/06

    CPC classification number: D07B1/0613 ,  D07B2401/201

    Abstract: PROBLEM TO BE SOLVED: To provide a low aspect ratio large-sized pneumatic radial tire improved in eccentric wear of a tread part, also improved in belt durability, and suitable for a truck or a bus for a heavy load use.
    SOLUTION: The large-sized pneumatic tire T having an aspect ratio of 65% or less in a tire cross-section, is provided with: two-layered main belts 12 and 13; and a 0° belt 15 in which a steel cord is extended at an angle of substantially 0° in a tire circumferential direction. The steel cord constituting the 0° belt has an m×n structure (m=3 to 4, and n=2 to 4), and also has a double-twist structure in which a strand and cord twisting directions are the same. The steel cord has a smaller diameter than those of steel cords constituting the main belts, and also has an inflection point Z in an S-S curve when a load (N) is taken on a vertical axis, and an elongation (%) on a horizontal axis, and an elongation A (%) of an intersecting point between a tilt tangential line X in a low load area and a tilt tangential line Y behind the inflection point Z is less than 1.0%.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供改善胎面部件的偏心磨损的小尺寸比的大尺寸充气子午线轮胎，还提高了带的耐久性，并且适用于用于重载使用的卡车或公共汽车。 解决方案：轮胎横截面具有65％或更小的纵横比的大型充气轮胎T设置有：两层主带12和13; 以及0°带15，其中钢帘线在轮胎周向上以大致0°的角度延伸。 构成0°带的钢丝帘线具有m×n结构（m = 3〜4，n = 2〜4），并且还具有捻合方向相同的双捻结构。 钢帘线的直径小于构成主带的钢帘线的直径，当在纵轴上取负载（N）时，在SS曲线中也具有拐点Z，在水平方向上具有伸长率（％） 并且低负荷区域中的倾斜切线X与拐点Z之后的倾斜切线Y之间的相交点的伸长率A（％）小于1.0％。 版权所有（C）2010，JPO＆INPIT

    Steel cord for reinforcing rubber product and tire
    250.
    发明专利
    Steel cord for reinforcing rubber product and tire 有权
    用于加强橡胶制品和轮胎的钢丝绳

    公开(公告)号：JP2007092183A

    公开(公告)日：2007-04-12

    申请号：JP2005279028

    申请日：2005-09-27

    Applicant: Kanai Hiroaki ,  金井 宏彰

    Inventor： MORIOKA AKITAKA

    IPC: D07B1/06 ,  B60C9/00

    CPC classification number: D07B1/0646 ,  D07B2201/2022 ,  D07B2401/201

    Abstract: PROBLEM TO BE SOLVED: To provide a and closely-twisted steel cord for reinforcing a rubber product, capable of being used as a reinforcing material for the rubber product, capable of increasing a total elongation until yarn breakage so as to be 5% or more, and improved in filling properties of rubber into an internal void part of the steel cord. SOLUTION: This steel cord for reinforcing the rubber product has a 1×3 structure in which 3 element wires a1, a2, a3 each have a curl smaller than a twisting pitch of the steel cord, wherein the steel cord is twisted so as to have an elongation percentage of 0.25% to 0.75% based on 10% of a breaking strength of the cord in a secondary elongation region of an S-S curve. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供能够用作橡胶制品的增强材料的用于加强橡胶制品的紧密扭转的钢丝帘线，能够将总伸长率增加到断纱前为5 ％以上，并且将橡胶的填充性能提高到钢帘线的内部空隙部分。 解决方案：用于加强橡胶制品的钢丝帘线具有1×3结构，其中3根丝线a1，a2和a3的卷曲小于钢丝帘线的扭绞间距，其中钢丝绳被扭曲 基于SS曲线的二次伸长区域中帘线的断裂强度的10％，具有0.25％至0.75％的伸长率。 版权所有（C）2007，JPO＆INPIT

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