Patent ID: 7137937

Claim:
A collapsible resistance exercise device comprising: a base support frame configured for placement on a horizontal surface; an upright frame including a lower end, an upper horizontal member, a left vertical member and a right vertical member, the lower end being pivotally attached to the base support frame, wherein the upright frame is configured to be releasably fixable in an upright position and to be collapsible onto the base support frame in a substantially flat relation; a transverse support member disposed horizontally between the left vertical member and the right vertical member above the lower end and below the upper horizontal membe, the transverse support member being pivotally mounted to the upright frame; a substantially U-shaped resistance member having a proximal resistance bar, a left distal end and a right distal end, the left distal end and the right distal end each being attached to the transverse support member; a plurality of spring attachment fixtures disposed substantially symmetrically on the upper horizontal member, on the substantially U-shaped resistance member, and on a pivotal attachment between the upright frame and the base support frame; and at least one spring having at least one end configured for releasable engagement with at least one of the plurality of spring attachment fixtures.