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    • 6. 发明授权
    • Skateboard roller wheel assembly
    • 滑板滚轮组件
    • US4047727A
    • 1977-09-13
    • US724370
    • 1976-09-17
    • Mark HolladayDaryl Mattew Hall
    • Mark HolladayDaryl Mattew Hall
    • A63C17/01A63C17/24B62B3/00
    • A63C17/012A63C17/01A63C17/016A63C17/24
    • A pair of roller wheel assemblies that are secured in longitudinally spaced relationship to an elongate platform of a skateboard. Each assembly includes a first centrally disposed resilient roller wheel and a pair of indepndently rotatable second rollers of generally frusto-conical shape situated on opposite sides of the first roller wheel. When the skateboard is guided in a straight path by a user the major portion of his weight is supported by the first roller wheels, and there is a minimum tendency for the skateboard to slow down in coasting. However, when the platform is tilted transversely by a user to guide the skateboard in a curved path, one of the second rollers is forced into rotatable frictional contact with the supporting surface to prevent the skateboard slipping relative to the latter.
    • 一对滚轮组件,其以与滑板的细长平台纵向间隔的关系固定。 每个组件包括第一中心设置的弹性辊轮和位于第一滚轮的相对侧上的大体截头圆锥形的一对不可转动的第二滚子。 当滑板由用户以直线的方式被引导时,其重量的主要部分由第一滚轮支撑,并且滑行板在滑行过程中减速的最小趋势。 然而,当平台由使用者横向倾斜以在弯曲路径中引导滑板时,第二辊中的一个被迫与支撑表面旋转摩擦接触,以防止滑板相对于滑板滑动。