A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
A63B 21/00 (2006.01) A63B 21/018 (2006.01) A63B 23/04 (2006.01) A63B 22/14 (2006.01)
Patent
CA 2090061
ABSTRACT An exercise apparatus for simulating stair climbing, stair hopping and downhill skiing is disclosed. The apparatus includes a base with a vertical support extending upwardly therefrom and a handrail supported by the vertical support. Two foot pedals are pivotally connected to the vertical support. Each foot pedal has a roller chain connected at one end to the foot pedal. A spring is connected between the other end of each roller chain and the foot pedal at a position spaced from the point of connection of the roller chain. The two roller chains are looped over drive chain sprockets which are rotatably mounted by clutch bearings on a shaft in spaced apart relation. The drive shaft extends through and is rigidly secured to a friction drum. A chord is looped around the drum between a spring bias and a length adjustable rod thereby forming a variable resistance mechanism. Depressing the foot pedals results in the clutch bearings engaging the shaft thereby rotating the friction drum. The force required to depress the foot pedals is set, by adjusting the resistance mechanism. Releasing the foot pedal causes the bearing to disengage from the shaft and the bias springs return the pedal to the up position. Both pedals can be depressed simultaneously to simulate stair hopping, or separately to simulated stair climbing. Downhill skiing can be simulated by attachment of a platform to the foot pedals having a rotatable table mounted thereon. Hopping and twisting simulates skiing.
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