Patent ID: 6926644
Filing Date: 2005-08-09
Classification: A63B

Abstract:
1. An exercise treadmill comprising: a base frame for supporting on a floor, said base frame having a front side, a rear side, and left and right sides each having a first guiding slot and a second guiding slot, said first guiding slot having an upper section substantially extending vertically and a lower section backwardly extended from a bottom side of said upper section, said second guiding slot substantially extending vertically and disposed behind the upper section of the first guiding slot; a treadmill frame pivotally movably mounted on said base frame, said treadmill frame having a shaft transversely pivotally fastened to a front side thereof, two locating rods symmetrically disposed at two opposite lateral sides thereof and respectively coupled to and movable along the second guiding slots of said base frame, and two coupling members respectively provided at two distal ends of said shaft and engaged with the first guiding slots of said base frame and movable along the first guiding slots of said base frame upon rotary motion of said shaft; and a lifting device mounted in said treadmill frame, said lifting device having a motor, and a transmission mechanism coupled between said motor and the shaft of said treadmill frame for rotating said shaft and said coupling members upon operation of said motor for enabling the front side of said treadmill frame to be lifted upon movement of said coupling members in the upper sections of the first guiding slots of said base frame, and for enabling a rear side of said treadmill frame to be lifted and turned about said locating rods during operation of said motor while said coupling members is moved to the lower sections of the first guiding slots of said base frame.