| 摘要 |
BARBELL SYSTEM A barbell apparatus comprising a plurality of spaced weights stored on spaced apart support trays and arranged in two horizontal rows on a frame, the weights each having an identically positioned horizontal slot therein and a vertically disposed pin mounted therein for securing the weights to a lifting bar. The lifting bar has a rotatable collar on each end with spaced circumferential grooves in line with the pins in the weights. The lifting bar has wheels which rest in a guide channel on each end of the frame and cooperate with a pair of spaced alignment bars mounted on the frame to maintain the lifting bar in proper alignment with the frame and the weights during weight loading and unloading procedures. Unselected weights are prevented from movement off the frame by a horizontal safety bar. Two alternate embodiments of the weights used and the associated securing mechanism are provided. One utilizes a side-mounted pivotal lever for securing the weight to the bar with the rearward end formed as a latch to engage the weight frame. The second alternate employs a side-mounted vertically slidable plate for locking. |
