Patent ID: 7226391
Filing Date: 2007-06-05
Classification: A63B

Abstract:
1. An elliptical exercise device comprising: a main frame adapted to be mounted on the ground and having a rotary shaft defining an axis; left and right link rods each having a front end, and a rear end connected to said rotary shaft for rotation about said axis; left and right arms connected respectively to said front ends of said left and right link rods for moving reciprocally when said rear ends of said left and right link rods rotate about said axis; left and right foot plates connected respectively to said left and right link rods and movable upward and downward along respective elliptical paths when said rear ends of said left and right link rods rotate; and a guide mechanism mounted on said main frame and connected to said left and right foot plates to guide movement of said left and right foot plates so that each of said left and right foot plates is substantially horizontal when moving upward or downward from the lowest or highest point of a corresponding one of said elliptical paths.