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    • 2. 发明专利
    • Steel cord for reinforcing rubber article and pneumatic tire using the same
    • 用于加强橡胶制品和气动轮胎的钢丝绳
    • JP2006214062A
    • 2006-08-17
    • JP2005030624
    • 2005-02-07
    • Bridgestone Corp株式会社ブリヂストン
    • FUKUDA YUKIMASA
    • D07B1/06B60C9/00
    • D07B1/0613D02G3/48D07B2201/2052D07B2801/24
    • PROBLEM TO BE SOLVED: To provide a steel cord for reinforcing a rubber article in which the strength at break of the steel cord as a whole is improved by preventing the preceding breakage of filaments and the strength at break is improved by improving strength-exhibiting ratio of steel cord, particularly having double-twisted structure and to provide a pneumatic tire using the steel cord.
      SOLUTION: The double-twisted structure steel cord is obtained by twisting a core filament with at least one layer sheath filaments as a layer-twisted structure to form one strand, further twisting a plurality of strands as the layer-twisted structure consisting of a core strand and at least one layer of sheath strands to form one steel cord. The steel cord contains one or more strands containing one or more filaments (3) each made of soft metal or non-metal and protruded on the outside in the diameter direction than filament arranged in the same layer in the core strand or the sheath strand in at least one layer constituting the strand.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种用于加强橡胶制品的钢丝帘线,其中通过防止长丝的先前断裂而提高钢帘线的断裂强度,并且通过提高强度来提高断裂强度 - 特别是具有双扭曲结构的钢丝帘线,并提供使用钢帘线的充气轮胎。 解决方案:双捻结构钢丝帘线是通过将具有至少一层鞘细丝的芯丝扭绞成层状扭曲结构而获得的,以形成一条股线,进一步扭转多股股线作为层状扭曲结构,其包括 的芯股线和至少一层护套股线以形成一根钢丝帘线。 钢丝帘线包含一根或多根线,其中包含一根或多根由软金属或非金属制成的细丝(3)的细丝,并且沿直径方向在外侧突出,布置在芯线或护套中的同一层中的长丝 构成链的至少一层。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Steel cord and pneumatic tire
    • 钢丝绳和气动轮胎
    • JP2005179859A
    • 2005-07-07
    • JP2003425115
    • 2003-12-22
    • Bridgestone Corp株式会社ブリヂストン
    • NISHIMURA MITSUYASU
    • D07B1/06B60C9/00
    • D07B1/062D07B1/0613D07B2201/2018D07B2201/2023D07B2201/2052D07B2201/2059D07B2801/12
    • PROBLEM TO BE SOLVED: To provide a steel cord capable of suppressing fretting abrasion caused by a contact with beading even on applying to a radial tire equipped with hexagonal beading, and a pneumatic tire improved with its durability by using the same.
      SOLUTION: This steel cord is constituted by winding m-pieces (when n=2, 8≤m≤12 and when n=3, 9≤m≤13) of sheath filaments having a layered twist structure having the same direction with that of a core strand, around the core obtained by arranging the 2 pieces of core strands obtained by twisting n-pieces (n=2 or 3) filaments, in parallel. When the sheath filament has (1) the same diameter with that of the filament constituting the core strand, its longer diameter D
      1 and shorter diameter D
      2 in a flat cross section vertical to its longitudinal direction satisfy the relationship expressed by the following formula: 0.5 2 /D
      1 2 /D
      1
    • 要解决的问题:提供一种能够抑制即使在配备有六边形珠粒的子午线轮胎的情况下也可以抑制与珠粒接触引起的微动磨损的钢丝帘线,以及通过使用其而提高耐久性的充气轮胎。 解决方案:该钢丝帘线由具有相同方向的层状扭曲结构的鞘丝缠绕m片(n =2,8≤m≤12,n =3,9≤m≤13) 与通过将通过扭转n片(n = 2或3)长丝而获得的2个芯股线平行排列而获得的芯周围的芯股线。 当鞘细丝具有与构成芯股线的长丝相同的直径时,其扁平截面中的长径D 1 和较短直径D 2 垂直于其纵向方向满足由下式表示的关系:0.5 2 / D 1 <0.9,当它具有(2)不同的直径时,满足 以下公式:0.35 2 / D 1 <0.95。 版权所有(C)2005,JPO&NCIPI