Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Patent
1998-12-07
2000-07-18
Crow, Stephen R.
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
A63B 2204
Patent
active
06090013&
ABSTRACT:
The present invention relates to a standup exercise apparatus that simulates walking, jogging and climbing with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet.
Cross trainers guide the feet along a generally elliptical shaped curve to simulate the motions of jogging and climbing. Existing machines often produce user problems such as heel slap, numb toe and knee soreness with extended use. The present invention is an improved elliptical exercise machine capable of extended exercise with fewer user problems. Further, the cross trainer is adjustable to vary the motion of the elliptical stride to accommodate users of different size and muscle development.
A non-aligned foot support member is guided by a rocker linkage on one end and driven by a crank on the other end. The resulting pedal motion has equivalent maximum horizontal forward and rearward velocities to minimize pedal accelerations that cause undue muscle and joint soreness. The non-aligned foot support member further reduces excessive pedal articulation and facilitates shrouding of the rocker linkage. Handles are coupled to the rocker linkage with adjustable connector links.
REFERENCES:
patent: 5242343 (1993-09-01), Miller
patent: 5279529 (1994-01-01), Eschenbach
patent: 5383829 (1995-01-01), Miller
patent: 5653662 (1997-08-01), Rodgers
patent: 5692994 (1997-12-01), Eschenbach
patent: 5836854 (1998-11-01), Kuo
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