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    Weight-lifting apparatus and method
    22.
    发明授权
    Weight-lifting apparatus and method 失效
    举重装置及方法

    公开(公告)号：US5839997A

    公开(公告)日：1998-11-24

    申请号：US10863

    申请日：1998-01-22

    申请人： Mark R. Roth ,  Jon D. Schiff ,  Thomas M. Truran

    发明人： Mark R. Roth ,  Jon D. Schiff ,  Thomas M. Truran

    IPC分类号： A63B21/072 ,  A63B21/075

    CPC分类号： A63B21/0728 ,  A63B21/00065 ,  A63B21/0726

    摘要： A weight-lifting apparatus includes a plurality of weights each having a central hole and a slot extending from the central hole to a perimeter of the associated weight, the slot having a width less than the diameter of the central hole. The apparatus further includes a shaft having opposing ends defining a diameter about equal to the central holes, and a sleeve positioned on the shaft. The shaft is shaped to rotatably engage the central holes and is rotatable to different positions. The shaft further has a plurality of recessed surfaces on the opposing ends corresponding to the different positions that extend different longitudinal lengths, the recessed surfaces defining with other surfaces on the shaft a reduced dimension about equal to the width of the slot. Further, the shaft and the weights are configured so that by rotating the shaft, the recessed surfaces are selectively positioned to allow the shaft to slide along one or more of the slots, thus selectively releasing the weights. A person using the weight-lifting apparatus can easily rotate the shaft to select a desired number of weights without interrupting their exercise routine.

    摘要翻译： 一种举重装置包括多个重物，每个重物具有中心孔和从中心孔延伸到相关重量的周边的狭槽，狭槽的宽度小于中心孔的直径。 该装置还包括具有限定大约等于中心孔的直径的相对端的轴和位于轴上的套筒。 轴被成形为可旋转地接合中心孔并且可旋转到不同的位置。 所述轴还具有在相对端上对应于在不同纵向长度上延伸的不同位置的多个凹入表面，所述凹入表面与所述轴上的其它表面限定大致相等于所述狭槽的宽度。 此外，轴和重物构造成使得通过旋转轴，凹面被选择性地定位成允许轴沿着一个或多个狭槽滑动，从而选择性地释放重物。 使用举重装置的人可以容易地旋转轴以选择所需数量的重量而不中断其运动程序。