| 摘要 |
A weight stack apparatus for an exercising machine includes a weight stack comprised of a plurality of weights vertically arranged on top of each other with each of said weights including a pair of spaced apart substantially vertical apertures extending therethrough. A pair of spaced apart substantially vertically extending guide rods pass through the weights as they are moved up and down. At least one of the guide rods is hollow. An upper pulley is mounted adjacent the upper end of the hollow guide rod and a cable passes over the upper pulley. A first end of the cable extends downwardly toward the weight stack and includes means for selectively connecting any desired number of the weights to the first end of the cable. A second end of the cable extends downwardly through the hollow guide rod and around a lower pulley mounted adjacent the lower end of the hollow guide rod and is connected to the exercising machine.
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