Patent ID: 6508746
Filing Date: 2003-01-21
Classification: A63B

Abstract:
An exercise device for simulating alpine mogul skiing comprising:a) a base having a left side and a right side and at least one cross piece; b) a first crank assembly having first left and right parallel cranks, a first crank pin, and a first pair of left and right journals, said first cranks being separated by said first crank pin, said first pair of journals being supported by said base, said first crank assembly being rotatable through a complete circle about a first axis of rotation; c) a second crank assembly spaced from said first crank assembly having second left and right parallel cranks, a second crank pin and a second pair of left and right journals, said second cranks being separated by said second crank pin, said second pair of journals being supported by said base, said second crank assembly being rotatable through a complete circle about a second axis of rotation, said first axis of rotation being parallel to said second axis of rotation and spaced therefrom such as to allow independent rotation of each of said first and second crank assemblies; d) said first crank pin having first left and right bearings mounted for rotation thereon, adjacent to and inward from said first left and right cranks, and said first crank pin having a first plurality of spring mounting bushings mounted for rotation thereon and spaced between said first left and right bearings; e) said second crank pin having second left and right bearings mounted for rotation thereon, adjacent to and inward from said second left and right cranks, and said second crank pin having a second plurality of spring mounting bushings mounted for rotation thereon and spaced between said second left and right bearings; d) a generally rectangular platform having a first end portion and a second end portion, and a central portion, said first end portion being supported by and free to ride in a reciprocal manner on said first left and right bearings, said second end portion being supported by and free to ride in a reciprocal manner on said second left and right bearings; e) spring mounting means located in said central portion for tethering said platform for retention in a range of locations relative to said crank pins; f) a prime mover supported by said base; and g) a power transmitting element connecting said prime mover to at least one each of said first and said second crank journals so as to impart rotation of said first and second crank assemblies.