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US 8,272,995 B2Granted
Elliptical exercise methods and apparatus
OwnerKenneth W. Stearns, Joseph D. Mareshinventors
Life of this patent
Estimating the term…
Abstract
Various exercise machines have foot supporting linkages that move a person's feet through respective left and right paths of motion in respective planes that are skewed relative to one another.
Claims13
An exercise apparatus, comprising:
- a) a frame configured to rest on a floor surface;
- b) a left crank rotatably mounted on said frame;
- c) a right crank rotatably mounted on said frame;
- d) a left foot supporting linkage movably interconnected between said frame and said left crank;
- e) a right foot supporting linkage movably interconnected between said frame and said right crank;
- f) wherein each said foot supporting linkage includes a foot link having a first end rotatably connected to a respective said crank, and an opposite second end rotatably connected to respective left and right rocker links, wherein said rocker links are rotatably mounted on said frame;
- and
- g) wherein said left foot supporting linkage and said right foot supporting linkage constrain a user's foot to move in a generally elliptical foot path in respective left and right planes skewed relative to one another.
5 more elements
An exercise apparatus, comprising:
- a) a frame configured to rest on a floor surface;
- b) left and right cranks rotatably mounted on said frame for rotation about a common crank axis;
- c) said apparatus having left and right sides, each side comprising:
- a rocker link rotatably mounted on said frame;
- a foot link having a first end rotatably connected to a respective said crank, and an opposite second end rotatably connected to a respective said rocker link;
- a foot platform pivotally coupled to a respective said foot link;
- a drawbar interconnected between a respective said foot platform and a respective said rocker link;
- and
- d) wherein each said foot platform constrain a user's foot to move in a generally elliptical foot path in respective left and right planes skewed relative to one another.
6 more elements
Dependencies are inferred from the claim text.