Crank drive with periodic change of effective lever length

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United States of America Patent

PATENT NO 11993342
APP PUB NO 20210163095A1
SERIAL NO

17261498

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Importance

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Abstract

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In order to form a largely oval circulatory path, in particular a pedal (1a), a crank drive (1) is described which periodically changes the effective lever length of a crank (2). In this case, gear levers (4′ or 7) are mounted on a crank (2) at both ends (2 a, 2b) which rotate in opposite directions with respect to one another and thus form two further movement axes within the pedal path and are thus adapted to the natural human leg movement in a force-saving and ergonomic manner.

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Patent Owner(s)

Patent OwnerAddress
SCHMIDT FELIXKINDBERG/STEIERMARK

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schmidt, David Kindberg/Steiermark, AT 108 716

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