1989-11-02
1990-07-24
Crow, Stephen R.
Undertaking
A63B 2304
Patent
active
049430491
ABSTRACT:
A climber includes two swing arms which carry pedals at the free ends thereof. A drawing member is fastened to the intermediate portions of the swing arms and is guided so that, when a user steps on and moves one of the pedals downward, the other of the pedals moves upward. The reciprocal movement of the drawing member rotates a wheel axle in a predetermined direction. A hub is sleeved rotatably on the wheel axle and is connected to the same by a speed-increasing mechanism. A wheel body is sleeved rigidly on the hub and has a plurality of generally radially extending wheel blades. The rotational speed of the wheel body is much greater than that of the wheel axle.
REFERENCES:
patent: 3747924 (1973-07-01), Champoux
patent: 3970302 (1976-07-01), McFee
patent: 4708338 (1987-11-01), Potts
patent: 4720093 (1988-01-01), Del Mar
patent: 4830362 (1989-05-01), Ball
patent: 4838543 (1989-06-01), Armstrong
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