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    • 126. 发明授权
    • Pneumatic radial tire with folded ply breaker having soft cushion
surrounding breaker edge
    • 气动子午线轮胎,带有折叠式帘式破碎机,软垫包围断路器边缘
    • US4273177A
    • 1981-06-16
    • US136182
    • 1980-03-31
    • George H. Nybakken
    • George H. Nybakken
    • B29D30/08B60C9/18B60C9/20B60C9/26
    • B60C9/26B29D30/08Y10T152/1081
    • A pneumatic radial tire has a two-ply tread reinforcing breaker wth cords of filamentary material. The breaker plies are of unequal widths and arranged symmetrically with respect to the median circumferential or equatorial plane of the tire, the overall width of the breaker being substantially the width of the overlying tread. In the region of each shoulder of the tread, the edges of one ply are folded back on themselves forming superimposed two-ply regions and three-ply regions enclosing the edges of a narrow, non-folded ply. Surrounding each two-ply region of the folded ply is a cushion rubber which is softer than the tread or breaker skimcoat rubbers. The breaker construction substantially eliminates breaker edge separation, resulting in a more durable radial tire which can be recapped to provide further service.
    • 充气子午线轮胎具有双层胎面增强断路器,其具有丝状材料。 断路器层具有不等宽度并且相对于轮胎的中间圆周或赤道平面对称布置,断路器的总宽度基本上是上覆胎面的宽度。 在胎面的每个肩部的区域中,一个帘布层的边缘折叠在自身上,形成叠置的双层区域和包围窄的非折叠层的边缘的三层区域。 围绕折叠层的每个双层区域是缓冲橡胶,其比胎面或断裂器外涂层橡胶软。 断路器结构基本上消除了断路器边缘分离,导致更耐用的子午线轮胎,其可以被重新覆盖以提供进一步的服务。
    • 128. 发明授权
    • Vehicle tire
    • 车轮胎
    • US4201261A
    • 1980-05-06
    • US823304
    • 1977-08-10
    • Donald R. BartleyJames SidlesStephen C. Sabo
    • Donald R. BartleyJames SidlesStephen C. Sabo
    • B29D30/08B29C67/00B29D30/00B60C1/00B60C5/01B60C7/00B60C5/12
    • B29D30/00B60C5/01B60C7/00Y10S152/905
    • A vehicular pneumatic tire which, except for bead cores, is composed solely of an elastomeric blend strengthened by molecular orientation. The blend is a monoolefin copolymer rubber with a polyolefin and sufficient curing agents to effect vulcanization when the blend is subjected to heat and pressure. The process for making the tire comprises preforming an annulus of the elastomeric blend with bead cores adjacent the edges, the diameter of the preform being essentially that of the bead diameter of the completed tire and the axial distance between the beads less than the transverse arcuate dimension of the completed tire. The preform is cured and while still hot following curing, is stretched and shaped to final size and the generally toroidal form characteristic of conventional pneumatic tires with resulting biaxial molecular orientation, which orientation is retained in the tire by cooling it below the melting point of the polyolefin before removing the tire from the mold.
    • 除胎圈芯之外的车辆充气轮胎仅由通过分子取向强化的弹性体共混物组成。 共混物是具有聚烯烃和足够的固化剂的单烯烃共聚物橡胶,以在混合物经受热和压力时进行硫化。 制造轮胎的方法包括预先形成弹性体共混物的环状物,边缘附近具有胎圈芯,预型件的直径基本上是完整轮胎的胎圈直径的直径以及小于横向弓形尺寸的胎圈之间的轴向距离 的完成轮胎。 预成型件固化并且在固化之后仍然热固化,被拉伸和成形为具有所得双轴分子取向的常规充气轮胎的最终尺寸和大体上环形形状特征,该取向通过将其冷却到低于 从模具中取出轮胎之前的聚烯烃。