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Exercise methods and apparatus with elliptical foot motion

  • US 7,507,186 B2
  • Filed: 10/23/2007
  • Issued: 03/24/2009
  • Est. Priority Date: 03/14/2007
  • Status: Expired due to Fees
First Claim
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1. An elliptical motion exercise apparatus, comprising:

  • a frame configured to rest on a floor surface;

    a left crank and a right crank, wherein each said crank is rotatably mounted on the frame;

    a left drive link and a right drive link, wherein each said drive link has a forward end, a rearward end, and an intermediate portion disposed therebetween, and each said forward end is rotatably coupled to a respective said crank;

    a left rocker link and a right rocker link, wherein each said rocker link is rotatably mounted on the frame at a common pivot axis;

    a left reciprocating link and a right reciprocating link, wherein each said reciprocating link has a forward end rotatably coupled to a lower portion of a respective said rocker link, a rearward end constrained to move in reciprocal fashion relative to the frame, and an intermediate portion rotatably coupled to the intermediate portion of a respective said drive link, and the left reciprocating link and the left drive link cooperate to define a left linkage, and the right reciprocating link and the right drive link cooperate to define a right linkage; and

    a left foot link and a right foot link, wherein each said foot link has a forward end rotatably coupled to a lower portion of a respective said rocker link, and a rearward, foot supporting end movably supported on a respective said linkage.

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