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US 5,314,392 AGranted
Portable pedal exerciser
OwnerTranel Hawkins, Robert S. Smithinventors
Life of this patent
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Abstract
A pedal exerciser for performing stepper exercises including a pair of pedal cranks, each crank driving one of a pair of crankshafts that are coupled together by bevel gears such that, when one pedal is forced to rotate downward, the other pedal rises thereby providing reciprocating stairclimbing motion. Adjustable resistance to stepping is provided by a resistance pad against either the idler bevel gear or one or both crankshafts. The compact construction is amenable to positioning the exerciser under a desk or table for a seated user. A detachable frame with handles may be attached for an erect user.
Claims11
An exerciser which comprises:
- a housing base adapted for positioning on a floor;
- a pair of crankshafts rotatably mounted in said housing base positioned on a common center line;
- a pair of bevel gears, one gear of said pair mounted on one of said crankshafts, respectively;
- a third bevel gear with an idler shaft rotatably mounted in said housing base and engaging both said gears of said pair of bevel gears such that when one crankshaft turns in one direction, the other crankshaft turns in an opposite direction;
- a pedal crank having a pedal on one end and another end secured substantially perpendicularly to one of said crank shafts respectively;
- means for applying an adjustable resistance to turning said crankshafts.
3 more elements
Dependencies are inferred from the claim text.