Hand crank bicycle drive

Details Hand crank bicycle drive Hand crank bicycle drive

B - Operations, Transporting

62

M

280/33

B62M 1/12 (2006.01)

Patent

CA 1273373

ABSTRACT A dual drive bicycle has a steerable front wheel and a rear wheel that is driven. foot-powered drive system includes a first rotatable shaft extending transversely to the bicycle. A rotatable drive sprocket is operatively connected to a second shaft rotatably mounted on the steering post in which the front wheel is mounted. rotatable driven sprocket is mounted on the first shaft and is capable of rotating same for forward drive. A continuous drive chain extends about the drive sprocket and the driven sprocket. A third rotatable shaft is mounted on the steering spindle so as to pivot with the front wheel when the latter is steered. A universal joint connects the second and third shafts at a location above the steering shaft. A further continuous chain and cooperating sprockets together with a hand-crank are provided to rotate the third shaft.

606713

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