Exercise devices – Involving user translation or physical simulation thereof – Having separate foot engaging members reciprocating on...
Patent
1994-10-21
1995-04-18
Crow, Stephen R.
Exercise devices
Involving user translation or physical simulation thereof
Having separate foot engaging members reciprocating on...
482118, A63B 2100, A63B 6918
Patent
active
054074096
ABSTRACT:
An exerciser has a base, a pair of parallel guide rails disposed on the base, a pair of driven units mounted slidably and respectively on the guide rails, and a friction-type resistance device mounted on the base and connected operably to the driven units to resist movement of the driven units. The resistance device includes a friction wheel mounted rotatably on the base, a friction belt trained on the friction wheel, a tension spring interconnecting one end of the friction belt and the base, and first and second transmission rollers mounted rotatably on the base at two sides of the friction wheel. First and second clutch units couple a respective one of the first and second transmission rollers and the friction wheel only when the respective transmission roller rotates in a first direction to drive rotatably the friction wheel in the first direction. The friction wheel applies a force to the friction belt in a compressing direction of the tension spring while rotating in the first direction. An endless transmission belt is secured to the driven units and is looped around the first and second transmission rollers so that reciprocating sliding movement of the driven units along the guide rails enables the endless transmission belt to drive the first and second transmission rollers to rotate in opposite directions.
REFERENCES:
patent: 4023795 (1977-05-01), Pauls
patent: 4659077 (1987-04-01), Stropkay
patent: 4867443 (1989-09-01), Jensen
patent: 4948121 (1990-08-01), Haaheim et al.
patent: 5299996 (1994-04-01), Chi
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