| 摘要 |
A physical development exercise machine is comprised of a longitudinally elongated, extruded metal column rigidly preferably attached to a vertical support, such as a wall, in spaced separation therefrom. The column includes a plurality of longitudinal, parallel tracks. A weight carriage is engaged for reciprocal movement in the vertical track located on the side of the column opposite the user. At least a first turning pulley slide, and preferably a second turning pulley slide are engaged in other of the vertical tracks. An upper pulley is mounted at the upper end of the column. Turning pulley slide locks are provided to releaseably immobilize the slides upon which the turning pulleys are mounted relative to the elongated column. A single weight-lifting cable is employed and is attached to the weight carriage and looped through the upper pulley and one or more of the turning pulleys.
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