Cycle propelled by pedal and saddle movement

Details Cycle propelled by pedal and saddle movement Cycle propelled by pedal and saddle movement

B - Operations, Transporting

62

M

B62M 1/20 (2006.01)

Patent

CA 2144745

A cycle is convertible between a standard cycle configuration for normal cycling and an exercise configuration in which the cycle is propelled forwards by alternate saddle strokes, and pedal strokes, the saddle stroke comprising putting the cyclist's weight on the saddle (5) which moves downwardly driving the crank shaft (6) and bringing the two in-phase pedals (4a, 4b) up- wardly, the pedal stroke comprising pressing down on both pedals (4a, 4b) to bring the saddle up again. In the exercise configura- tion the cycle is prevented from stalling by an arrangement whereby when the pedals (4a, 4b) are at bottom dead centre the weight on the saddle (5) is applied to the crank (6c) at an angle to the vertical to maintain forward propulsion, and whereby when the saddle is at bottom dead centre the pedals (4a, 4b) are just forward of top dead centre so as to maintain forward propulsion. In the exercise configuration the pedals may be constrained to rotate in one direction only by means of a ratchet mechanism (12, 13, 14, 16) thereby preventing the pedals hitting the cyclist on the shins.

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