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    • 71. 发明授权
    • Vehicle wheel
    • 车轮
    • US3968996A
    • 1976-07-13
    • US527555
    • 1974-11-27
    • Raymond J. Wilcox
    • Raymond J. Wilcox
    • B60B3/06B60B5/02
    • B60B3/06B60B5/02
    • Polyurethane foam is used in a three-piece vehicle wheel as a load bearing and load transmitting structural element. The rim of the wheel, an inner wheel disc, and an outer decorative wheel disc are bonded together by the polyurethane foam. The rim includes an interlock lip to interlock the rim with the inner disc and an interlock lip that interlocks the rim with the outer decorative disc. The wheel can be manufactured by placing the rim, inner disc, and outer disc in a die and injecting the polyurethane foam composition into the interconnected volume enclosed and defined by those wheel components. The foam curing process then occurs in situ. Alternatively, the rim, inner disc, and outer disc can be adhesively bonded to a preformed polyurethane foam member. The resultant vehicle wheel, manufactured by either process, is characterized by high strength, light weight, and a decorative appearance.
    • 聚氨酯泡沫用于三件式车轮作为承重和负载传递结构件。 轮胎的轮缘,内轮盘和外部装饰轮盘通过聚氨酯泡沫粘合在一起。 边缘包括互锁唇缘,以将边缘与内盘互锁,以及将边缘与外部装饰盘互锁的互锁唇缘。 轮可以通过将轮辋,内盘和外盘放置在模具中并将聚氨酯泡沫组合物注入由这些车轮部件包围和限定的互连的体积中来制造。 然后在原位发生泡沫固化过程。 或者,轮辋,内盘和外盘可以粘合到预成型的聚氨酯泡沫构件上。 由任一方法制造的所得车轮的特征在于强度高,重量轻和装饰性外观。