Patent ID: 7101328

Claim:
An abdominal exercise device for positioning at the juncture of a torso and legs of a seated person and resisting movement of the torso toward the legs, said device comprising: a first frame portion for abutting against an upper surface of the legs, said first frame portion including an elongated rear member, an elongated front member and a pair of elongated side members attached together; a second frame portion for abutting against the torso includes a pair of legs and an elongated central member attached together such that said second frame portion generally has a U-shape; each of a pair of coupling members pivotally coupling free ends of said pair of legs to said first frame portion at junctures of said rear member and said pair of side members, each of said coupling members including a first bracket attached to an upper surface of one of said side members and a second bracket attached to a front surface of one of said legs a pin extending through said aligned ones of said first and second brackets such that said first and second brackets are pivotally coupled together; and a pair of biasing members for biasing said central portion away from said front member such tat said first frame portion lies in a plane orientated perpendicular to a plane of said second frame portion, each of said biasing members has a first end removably and pivotally coupled to one of said legs and a second end removably and pivotally coupled to one of said side members such tat each of said biasing members is orientated substantially parallel to each other, each of said biasing members including; a cylinder having first wall, a second wall and a peripheral wall extending between said first and second walls, said peripheral wall having a break therein such that said cylinder including a pair of sections selectively coupled together; a first rod being attached to said first wall and extending away therefrom, said first rod having a free end defining said first end; a second rod extending through said second wall, said second rod having an inner end defining a piston and a free defining said second end, said piston being positionable in said cylinder; and a spring being positioned in said cylinder and being located between said piston and said first wall when said pair of sections are coupled together.