Multi-function exercise machine making use of body weight

DETAILED DESCRIPTION What is claimed is: 1.
An exercise machine comprising: (a) a base frame including upwardly extending support means; (b) a user support frame, including a user seat, pivotably mounted to said upwardly extending support means; and (c) lever arm means for pivotably raising and lowering said user support frame against the user's weight and comprising: (1) A pair of spaced-apart and upwardly extending support arms secured to said base frame, each of said arms including aperture adjustment means therein which extend upwardly along a length thereof defining an arcuate path therein; (2) a pair of spaced-apart pivot rods each mounted to said base frame in a space defined between said spaced-apart arms and adjacent the juncture of a corresponding support arm with said base frame; (3) an arcuate track, having first and second ends, adapted to be removably secured at one end to a selected one of said pair of pivot rods and at the second end adjustably secured to said aperture adjustment means, which is located in said selected distal one of said pair of support arms, for allowing said second end of said arcuate track to be selectively vertically adjusted along the length of said aperture adjustment means of said distal support arm, thereby providing a variably inclined path way; (4) a lever arm pivotably mounted to said user support frame, including a handle extending above said user seat and further including a downwardly depending leg carrying a roller at the lowermost end thereof adapted to travel along the length of said arcuate track as said handle is actuated thereby raising and lowering said user's seat upon reciprocating actuating movement of said handle by the user.
2.
An exercise machine according to claim 1 wherein said base frame comprises an elongated frame having a front end and a rear end and said upwardly extending support means is located at the rear end thereof.
3.
An exercise machine according to claim 2 wherein said upwardly extending support means comprises a post member