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    • 6. 发明授权
    • Tire having beads of specified structure
    • 轮胎具有指定结构的珠子
    • US06179028B2
    • 2001-01-30
    • US09239168
    • 1999-01-28
    • Jean-Jacques DrieuxOlivier Muhlhoff
    • Jean-Jacques DrieuxOlivier Muhlhoff
    • B60C306
    • B60C15/0236B60B21/102B60B21/106B60C15/00B60C15/0081B60C15/02B60C15/0247Y10S152/09Y10S152/10Y10T152/10819Y10T152/10846Y10T152/10855
    • A tire with a radial carcass reinforcement, when viewed in meridian section, includes a first bead, the seat of which is inclined towards the outside, the heel of the bead being axially on the inside and being reinforced by at least a reinforcement ring, the toe of the bead being axially on the outside and having a rubber wedge section made of rubber mix, the wedge being defined by two sides, the said rubber mix having a Shore A hardness greater than the Shore A hardness(es) of the rubber mixes located axially and radially above the bead ring and above the rubber wedge section. The carcass reinforcement is wound around the bead ring, passing from the inside to the outside to form an upturn extending along the radially inner side of the rubber wedge section, then along the side opposite the apex A, and then covering axially and radially, at least in part, the outside of the rubber section above the wedge section, the said upturn having an end located radially above the reinforcement annular ring of the bead and axially between the straight line P1 extending the radially outer side of the wedge section and the straight line P2 perpendicular to the axis of rotation and tangent at N to the said annular ring.
    • 具有径向胎体加强件的轮胎,当在子午线部分中观察时,包括第一胎圈,其座椅朝向外侧倾斜,胎圈的脚跟在内侧轴向并由至少一个加强环加强, 胎圈的脚趾在轴向上在外侧并且具有由橡胶混合物制成的橡胶楔形部分,楔形件由两侧限定,所述橡胶混合物的肖氏A硬度大于橡胶混合物的肖氏A硬度 位于胎圈环的轴向和径向上方,并位于橡胶楔形部分的上方。 胎体增强件缠绕在胎圈环周围,从内向外流动,形成沿着橡胶楔形部分的径向内侧延伸的上翘,然后沿着与顶点A相对的一侧,然后轴向和径向覆盖在 至少部分地是在楔形部分上方的橡胶部分的外侧,所述上翘具有位于胎圈的加强环形环的径向上方的端部,并且轴向地延伸到楔形部分的径向外侧的直线P1和直线 垂直于旋转轴线的线P2和N处的所述环形切线。