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Exercise methods and apparatus

  • US 6,949,053 B1
  • Filed: 04/29/2003
  • Issued: 09/27/2005
  • Est. Priority Date: 04/24/1997
  • Status: Expired due to Fees
First Claim
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1. A method of generating elliptical exercise motion, comprising the steps of:

  • providing a frame configured to rest upon a floor surface;

    pivotally mounting a first left link and a first right link on a first end of the frame at a first common pivot axis;

    pivotally mounting a second left link and a second right link on the first end of the frame at a second common pivot axis;

    pivotally interconnecting a third left link between the first left link and the second left link;

    pivotally interconnecting a third right link between the first right link and the second right link;

    rotatably mounting a left crank and a right crank on an opposite, second end of the frame at a common crank axis;

    interconnecting a left rail between the left crank and one said left link;

    interconnecting a right rail between the right crank and one said right link;

    movably mounting a left foot support on the left rail;

    movably mounting a right foot support on the right rail;

    linking the left foot support to another said left link in a manner that constrains the left foot supports to move through a generally elliptical path having a generally vertical minor axis determined by vertical displacement of the left crank, and a generally horizontal major axis determined by amplified horizontal displacement of the another said left link; and

    linking the right foot support to another said right link in a manner that constrains the right foot support to move through a generally elliptical path having a generally vertical minor axis determined by vertical displacement of the right crank, and generally horizontal major axis determined by amplified displacement of the another said right link.

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