Ladder-climbing exercise device
OwnerSteven M. Nicholsinventor
Life of this patent
Estimating the term…
Abstract
A ladder-climbing exercise device (10) includes an inclined flight (13) along which a plurality of rungs (29) are presented in an endless manner. The marginal ends of the rungs are mounted on endless chains which are supported by a frame. The chains are coupled to a fan (43) having a squirrel cage-like rotor. The position of an operator (P) relative to the flight changes the size of a fan aperture (45) to vary the resistance afforded by the device to the climbing motion.
Claims10
An exercise device to enable a person to simulate the climbing of a ladder by presentment of an endless series of rungs while remaining in a substantially fixed spatial position, comprising:
- a frame;
- a pair of transversely-spaced endless members journalled on said frame, said members having parallel flight portions;
- a plurality of rungs having their opposite marginal end portions mounted on said respective members at longitudinally-spaced locations therealong;
- resistance means for providing a variable resistance to free movement of said members;
- and
- control means including a cord attached to said person and operatively arranged to vary the resistance provided by said resistance means as a function of the position of a person relative to said flight portions.
In an exercise device adapted to enable a person to simulate the climbing of a ladder, said device having a plurality of rungs adapted to move relative to a person while that person remains generally in the spatial location, and wherein said device has a moving flight portion which said person attempts to climb, and wherein said device has a resistance device arranged to impede the free movement of said rungs along said flight portions, the improvement which comprises:
- control means including a cord attached to said person for varying the resistance afforded by said resistance device as a function of the position of said person relative to said flight portions;
- whereby, by varying his position relative to said flight portions, said person may vary the resistance afforded by said resistance device.
The method of operating an exercise device to enable a person to simulate the climbing of a ladder by presentment of an endless series of rungs, while remaining in a substantially constant spatial location, comprising the steps of:
- providing a frame;
- moving a plurality of spaced rungs in an endless series along said frame in a flight toward a person;
- moving along said rungs of said flight to simulate a climbing motion while remaining in substantially the same spatial location;
- moving relative to said frame along said flight;
- providing control means having a cord attached to the person for operatively varying the resistance of said moving rungs;
- and
- varying the resistance of said moving rungs to such climbing motion as a function of the position of said person relative to said frame;
- thereby to vary the resistance of said device to said climbing motion by varying the position of said person relative to said frame.
Dependencies are inferred from the claim text.