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    • 2. 发明授权
    • Method and apparatus for the renewal of the tread of a worn pneumatic or
solid rubber tire
    • 用于更新磨损的气动或实心橡胶轮胎的胎面的方法和装置
    • US4147642A
    • 1979-04-03
    • US801411
    • 1977-05-27
    • Wilhelm Schelkmann
    • Wilhelm Schelkmann
    • B29D30/56B29H17/37B29H17/38
    • B29D30/56B29D2030/4437B29D2030/4443B29D2030/445B29D2030/523B29L2030/002Y10T156/16Y10T29/53657
    • Renewal of the running surface of a worn pneumatic or solid rubber tire, in which a layer of bonding rubber is applied to the prepared body of the tire and to the interior of a prefabricated precured rubber tread ring has gaseous inclusions between the applied layers led away and the assembly prepared in this way is heated in an autoclave for vulcanizing the layer of bonding rubber. The tread ring directly before applying it to the body is stretched very hard in a simple stretching mechanism so that when the tread ring is removed from the stretching mechanism a free stretch of about three to four percent remains temporarily. This allows the freed but stretched tread ring to be slipped over the body without further auxiliary means retaining the ring stretched and the ring to be arranged in exact correlation with the circumference of the body. The free stretch rapidly and continuously reduces to about one percent permanent stretch. In any case the duration of the temporary free stretch, which is available after the stretching process is completed and freed, is adequate for applying the tread ring to the body of a prepared tire in a simple manner.
    • 磨损的气动或实心橡胶轮胎的运行表面的更新,其中将粘合橡胶层施加到制备的轮胎的本体和预制的预硫化橡胶胎面环的内部,在施加的层之间引入气态夹杂物 并且以这种方式制备的组件在用于硫化粘合橡胶层的高压釜中加热。 直接在将其施加到身体之前的胎面环以简单的拉伸机构非常硬地拉伸,使得当胎面环从拉伸机构移除时,约3%至4%的自由伸展暂时保留。 这允许释放但拉伸的胎面环在身体上滑动,而不需要进一步的辅助装置来保持环被拉伸并且环被布置成与身体的周长精确相关。 自由伸展快速且持续地减少到约1%的永久伸展。 在任何情况下,在拉伸过程完成和释放之后可获得的临时自由拉伸的持续时间足以以简单的方式将胎面环施加到准备的轮胎的主体上。