Exercise apparatus with elliptical foot motion
OwnerKenneth W. Stearns, Joseph D. Mareshinventors
Life of this patent
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Abstract
An exercise apparatus includes a frame; left and right first cranks rotatably mounted on the frame; left and right second cranks rotatably mounted on the frame; left and right rails rotatably interconnected between respective first cranks and respective second cranks; left and right foot supports movably mounted on respective rails; left and right rocker links pivotally mounted on the frame and operatively connected to respective foot supports; and left and right drawbar links movably interconnected between respective cranks and respective rocker links. The resulting assembly constrains the rails to move through respective circular paths relative to the frame, and constrains the foot supports to move back and forth relative to the rails.
Claims14
An exercise apparatus, comprising:
- a frame having a base that is configured to rest upon a floor surface;
- a left first crank and a right first crank, wherein each said first crank is rotatably mounted on the frame;
- a left second crank and a right second crank, wherein each said second crank is rotatably mounted on the frame;
- a left rail and a right rail, wherein each said rail is rotatably interconnected between a respective first crank and a respective second crank;
- a left foot support and a right foot support, wherein each said foot support is movably mounted on a respective rail;
- a left rocker link and a right rocker link, wherein each said rocker link is pivotally mounted on the frame and operatively connected to a respective foot support;
- a left drawbar link rotatably interconnected between the left rocker link and one of the left cranks, wherein said left drawbar link and said left rocker link cooperate to link rotation of the left cranks to movement of the left foot support along the left rail;
- and
- a right drawbar link rotatably interconnected between the right rocker link and one of the right cranks, wherein said right drawbar link and said right rocker link cooperate to link rotation of the right cranks to movement of the right foot support along the right rail.
Dependencies are inferred from the claim text.