Ladder-climbing exercise device
First Claim
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1. 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.
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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.
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Citations
10 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. 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:
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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. - View Dependent Claims (7, 8)
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9. 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:
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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. - View Dependent Claims (10)
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Specification