Patent ID: 7175568

Claim:
An exercise machine comprising: a framework, said framework configured to be supported by the floor; a pair of foot support members, each having a first portion, a second portion and a foot engaging pedal; a crank, said crank rotatably attached to said framework projecting outwardly therefrom on both sides thereof; a pair of rocker links, each said rocker link configured to oscillate about a rocker pivot; a pair of coupler links, each said coupler link pivotally connected to said crank and a corresponding said rocker link; said rocker links pivotally connected to said first portion of said foot support members to control back and forth movement of said pedals; a pair of forward guide links, each said forward guide link pivotally connected to said framework; a pair of rear guide links, each said rear guide link pivotally connected to said framework; a pair of guide tracks, each said guide track pivotally connected to corresponding said forward and rear guide links; a pair of connector links, each said connector link pivotally connected to said coupler link and said forward guide link; a pair of rollers, each said roller positioned in said second portion of said foot support member and in rollable contact with a corresponding said guide track to drive the up and down movement of said guide track; said pedal configured to move relative to said framework when the foot of the user is rotating said crank whereby said pedal follows an elongate curve path.