Pneumatic tire having cross belt layer reinforced with specified steel
cord
    123.
    发明授权
    Pneumatic tire having cross belt layer reinforced with specified steel cord 失效
    具有交叉皮带层的气动轮胎,用特定的钢丝绳加固

    公开(公告)号:US5676776A

    公开(公告)日:1997-10-14

    申请号:US454690

    申请日:1995-05-31

    Inventor: Kiyoshi Ikehara

    Abstract: A steel cord for reinforcing rubber articles comprises one wave-form or helical core steel filament and five to eight sheath steel filaments disposed around the core steel filament, the pitch Pc of the core steel filament is 3.0 dc/0.34.ltoreq.Pc.ltoreq.10.0 dc/0.34 (dc=diameter of steel core filament) and the core forming ratio Rc=Lc/dc (Lc is an amplitude of the wave or helix of the core steel filament) is within a particular range varying depending on the number of sheath steel filaments. A pneumatic tire contains a cross-belt reinforced with the above-mentioned steel cords where i) an angle .theta. formed by the reinforcing steel cords and the equatorial plane of the tire is: 12.degree..ltoreq..theta..ltoreq.30.degree. (ii) a gap between any two adjacent steel cords in the same layer of the cross belt, I, is: 0.5 mm.ltoreq.I.ltoreq.2.0 mm (iii) a gauge of the gum between any two facing steel cords in different layers of the cross belt, G, is: 0.35 mm .ltoreq.G.ltoreq.2.0 mm.

    Abstract translation: 用于加强橡胶制品的钢丝帘线包括一个波形或螺旋芯钢丝,以及设置在芯钢丝周围的五至八个护套钢丝,芯钢丝的间距Pc为3.0cd / 0.34 < = dc dc / 0.34(dc =钢芯丝的直径),芯形成比Rc = Lc / dc(Lc是芯钢丝的波长或螺旋的振幅)在特定范围内, 的鞘钢丝。 充气轮胎包含用上述钢丝绳加强的交叉皮带,其中i)由钢筋帘线形成的角度θ和轮胎的赤道平面为:12°30° )交叉皮带I的相同层中的任何两个相邻钢丝帘线之间的间隙为:0.5mm

    Method of production of steel cord for reinforcing products having a
flat section
    124.
    发明授权
    Method of production of steel cord for reinforcing products having a flat section 失效
    具有平坦部分的加强产品的钢丝帘线的生产方法

    公开(公告)号:US5651246A

    公开(公告)日:1997-07-29

    申请号:US729093

    申请日:1996-10-15

    Applicant: Noboru Kusaba

    Inventor: Noboru Kusaba

    Abstract: A method for producing a steel cord from 3 to 6 steel filaments on which a coating is applied to retain the adhesion to a rubber, the steel cord being destined for use to reinforce a rubber product having a flat section, comprising the following steps of preforming steel filaments at a ratio of more than 120% by twisting them together to form an open-structure steel cord; and passing the steel cord through a flattening apparatus provided at each of outlet and inlet thereof with a roller having a groove formed in the center of the circumference thereof, and between the inlet and outlet rollers with at least a roller of which the circumferential surface is flat, to repeatedly bend the steel cord vertically or horizontally.

    Abstract translation: 一种从3〜6根钢丝制造钢帘线的方法,其上涂覆有涂层以保持对橡胶的粘附性,所述钢丝绳用于加强具有平坦部分的橡胶制品,包括以下步骤:预成型 通过将钢丝捻合在一起形成开放式钢丝帘线,比例大于120%的钢丝; 并将钢帘线通过设置在其每个出口和入口处的扁平装置,辊子具有形成在其圆周中心的槽,并且在入口辊和出口辊之间,至少一个辊的圆周表面是 平直,可以垂直或水平地反复弯曲钢帘线。

    Pneumatic radial tires with core-sheath steel belt cords
    127.
    发明授权
    Pneumatic radial tires with core-sheath steel belt cords 失效
    带皮芯钢带的气动子午线轮胎

    公开(公告)号:US5396942A

    公开(公告)日:1995-03-14

    申请号:US138056

    申请日:1993-10-19

    Abstract: A pneumatic radial tire for truck and bus comprises a carcass ply containing cords arranged substantially in a radial direction of the tire and a belt superimposed about said carcass ply and comprised of plural belt layers each containing steel cords arranged at a cord angle of 5.degree.-20.degree. with respect to an equator of the tire. In this case, the steel cord for the belt layer has a two-layer structure of a core comprised of two steel filaments and a single sheath comprised of 6-8 steel filaments and satisfies the particularly relationships on filament diameter, twisting pitch, bending rigidity, tensile strength and distance between adjoining cords.

    Abstract translation: 一种用于卡车和公共汽车的充气子午线轮胎包括:胎体帘布层,其包含基本上沿着轮胎的径向布置的绳索和围绕所述胎体帘布层叠置的带,并且包括多个带层,每个带层包含以5°的帘线角度排列的钢丝帘线, 20°相对于轮胎的赤道。 在这种情况下,用于带束层的钢丝绳具有由两根钢丝组成的芯部和由6-8根钢丝组成的单个护套的双层结构,并且在长丝直径,捻度,弯曲刚度方面具有特别的关系 ,拉伸强度和相邻帘线之间的距离。

    Pneumatic radial tires with core-sheath steel belt cords
    128.
    发明授权
    Pneumatic radial tires with core-sheath steel belt cords 失效
    带皮芯钢带的气动子午线轮胎

    公开(公告)号:US5311917A

    公开(公告)日:1994-05-17

    申请号:US525353

    申请日:1990-05-18

    Abstract: A pneumatic radial tire for truck and bus comprises a carcass ply containing cords arranged substantially in a radial direction of the tire and a belt superimposed about said carcass ply and comprised of plural belt layers each containing steel cords arranged at a cord angle of 5.degree.-20.degree. with respect to an equator of the tire. In this case, the steel cord for the belt layer has a two-layer structure of a core comprised of two steel filaments and a single sheath comprised of 6-8 steel filaments and satisfies the particularly relationships on filament diameter, twisting pitch, bending rigidity, tensile strength and distance between adjoining cords.

    Abstract translation: 一种用于卡车和公共汽车的充气子午线轮胎包括:胎体帘布层,其包含基本上沿着轮胎的径向布置的绳索和围绕所述胎体帘布层叠置的带,并且包括多个带层,每个带层包含以5°的帘线角度排列的钢丝帘线, 20°相对于轮胎的赤道。 在这种情况下,用于带束层的钢丝绳具有由两根钢丝组成的芯部和由6-8根钢丝组成的单个护套的双层结构,并且在长丝直径,捻度,弯曲刚度方面具有特别的关系 ,拉伸强度和相邻帘线之间的距离。

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