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    • 5. 发明授权
    • Pneumatic radial tire for heavy load vehicles
    • 用于重载车辆的气动子午线轮胎
    • US4366851A
    • 1983-01-04
    • US269439
    • 1981-06-02
    • Shigeo MakinoNoboru Sugimura
    • Shigeo MakinoNoboru Sugimura
    • B60C15/00B60C15/06B60C9/08
    • B60C15/06B60C15/0607Y10T152/10828Y10T152/10837
    • A pneumatic radial tire for heavy load vehicles comprising a body reinforcement and a bead portion reinforcement, in which the bead portion reinforcement substantially continuously covers the carcass ply wound around a bead core up to the inside of the tire, the upper end of the turn-up portion of the carcass ply and the outside upper end of the bead portion reinforcement covering the upper end of the carcass ply are arranged at an area other than a bead portion flexible region defined by two segments BC and AD as shown in attached FIG. 3, the bead portion reinforcement makes use of a cord having a modulus which corresponds to 15 to 60% of that of the ply cord of the carcass, and a tension at 100% elongation of a soft stiffener corresponds to 5 to 30% of that of a hard stiffener, the soft and hard stiffeners being disposed on the bead core one upon the other.
    • 一种用于重载车辆的充气子午线轮胎,包括主体加强件和胎圈部分加强件,其中胎圈部分加强件基本上连续地覆盖缠绕在胎圈芯上的胎体帘布层直到轮胎内部, 覆盖胎体帘布层上端的胎圈部分增强部分的外侧上端部分布置在如图所示的由两个段BC和AD限定的胎圈部柔性区域以外的区域。 如图3所示,胎圈部加强部使用具有相当于胎体帘布层帘线帘线的15〜60%的模量的帘线,柔软的扶强材的100%的伸长率的张力相当于该软质加强件的5〜30% 硬的加强件,柔软和硬的加强件一个接一个地设置在胎圈芯上。
    • 7. 发明授权
    • Pneumatic radial tires
    • 气动子午线轮胎
    • US4037637A
    • 1977-07-26
    • US612167
    • 1975-09-10
    • Iwao ArimuraAkio SatoHironori HiranoShigeo Makino
    • Iwao ArimuraAkio SatoHironori HiranoShigeo Makino
    • B29D30/00B60C3/04B60C9/08B60C9/18B60C9/20B60C9/28B60C11/00B60C9/04
    • B60C11/00B29D30/00B60C3/04B60C9/0292B60C9/2006Y10T152/10792
    • A pneumatic radial tire so constructed as to reduce a breaker interlayer shearing strain without adding any particular supplemental reinforcing layer is disclosed. The radial tire has an initial sectional shape which satisfies the following conditions.1. R.sub.1 /R.sub.1' .ltoreq. 0.82. r.sub.2 /w / r.sub.2' /w' .gtoreq. 1.53. modulus of a breaker cord .gtoreq. 10 .times. 10.sup.3 Kg/mm.sup.2, and4. Breaker cord angle .ltoreq. 25.degree.Where R.sub.1 is a radius of curvature of an outer profile of a carcass in a vertical center section through a rotational axis of the tire on a normal line to an outer curved surface through a widthwise end of a crown before the inside of the tire is pressurized, R.sub.1' is its corresponding radius of curvature after the inside of the tire has been pressurized, R.sub.2 is a radius of curvature of an outer profile of the crown in the vertical center section through the rotational axis of the tire before the inside of the tire is pressurized, R.sub.2' is its corresponding radius of curvature after the inside of the tire has been pressurized, W is the maximum width of the tire in the vertical center section through the rotational axis of the tire before the inside of the tire is pressurized, and W' is its corresponding maximum width of the tire after the inside of the tire has been pressurized.
    • 公开了一种充气子午线轮胎,其被构造成在不增加任何特定补充加强层的情况下减少断路器夹层剪切应变。 子午线轮胎具有满足以下条件的初始截面形状。