RUBBER ARTICLE REINFORCING STEEL WIRE AND RUBBER ARTICLE USING SAME

    公开(公告)号:EP2947199B1

    公开(公告)日:2018-07-25

    申请号:EP14757620.1

    申请日:2014-02-28

    Inventor: OBANA Naohiko

    Abstract: Provided are a rubber article reinforcing steel wire that is superior in bending fatigue properties to the related art and has a flat cross-sectional shape, and a rubber article using the wire. In a rubber article reinforcing steel wire 10, a major diameter and a minor diameter are substantially perpendicular to each other. Assuming that the major diameter is W, the minor diameter is T, a straight line that passes through a center of the major diameter in a width direction and is parallel to a minor diameter direction is L1, a straight line that passes through a center of the minor diameter in a width direction and is parallel to a major diameter direction is L2, an intersection point of the L1 and the L2 is a center point C, a region within a half of a distance from the center point C to a surface is a central region Rc, and a region outside the central region Rc is a surface layer region Rs, a Vickers hardness Hvc of the central region Rc is more than a Vickers hardness Hvs of the surface layer region Rs; and assuming that a Vickers hardness on the L1 in the surface layer region Rs is Hv1, and a Vickers hardness on the L2 in the surface layer region Rs is Hv2, relationships represented by Hvc - Hv1 ‰¤ 150, Hvc - Hv2 ‰¤ 150, Hv1/Hvc × 100 ‰¥ 85.11, and Hv2/Hvc × 100 ‰¥ 79.84 are satisfied.

    CÂBLÉ TEXTILE HAUT MODULE À AU MOINS TRIPLE TORSION
    373.
    发明公开
    CÂBLÉ TEXTILE HAUT MODULE À AU MOINS TRIPLE TORSION 审中-公开
    CÂBLÉE纺织机床模块ÀAU MOINS TRIPLE TORSION

    公开(公告)号:EP3230504A1

    公开(公告)日:2017-10-18

    申请号:EP15805193.8

    申请日:2015-12-07

    Abstract: The invention relates to a high modulus textile cord (50) having an at least triple twist (T1, T2, T3), comprising at least N strands (20a, 20b, 20c, 20d), where N is greater than 1, which strands are twisted together to a final twist T3 in a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), where M is greater than 1, which pre-strands are in turn twisted to an intermediate twist T2 (T2a, T2b, T2c, T2d) in an intermediate direction D1 which is opposite to D2, wherein every pre-strand consists of a spun fibre (5) that has been twisted on itself to an initial twist T1 (T1a, T1b, T1c) in the direction D1 and wherein at least half the N times M spun fibres have an initial modulus of elasticity Mi greater than 2000 cN/tex. The textile cord can advantageously be used as reinforcement in vehicle pneumatic tires, especially in the belt or the carcass ply of said pneumatic tires.

    Abstract translation: 本发明涉及具有至少三股捻度(T1,T2,T3)的高模量纺织帘线(50),其包含至少N股(20a,20b,20c,20d),其中N大于1, 在最终方向D2上被绞合在一起以形成最终扭转T3,每条绞合线由M根预绞线(10a,10b,10c)组成,其中M大于1,这些预绞合线又被绞合成中间 在与D2相反的中间方向D1上加捻T2(T2a,T2b,T2c,T2d),其中每个预绞合由已经在其自身上扭转到初始扭转T 1(T 1a,T 1b ,T1c),并且其中N倍M纺制纤维的至少一半具有大于2000cN / tex的初始弹性模量Mi。 织物帘线可以有利地用作车辆充气轮胎中的增强件,特别是在所述充气轮胎的带或胎体帘布层中。

Patent Agency Ranking