Bicycle type exercise apparatus with indexing pedal cranks

Details Bicycle type exercise apparatus with indexing pedal cranks Bicycle type exercise apparatus with indexing pedal cranks

1983-02-16

1985-11-05

Johnson, Richard J.

Undertaking

403 1, 403 97, A63B 2122, A63B 2304

Patent

active

045509069

ABSTRACT:
Exercise apparatus which includes pedaling apparatus carried on a frame, the pedaling apparatus including a first pedal on a crank arm fixed to a first shaft rotatably mounted on the frame, a second pedal on a second crank arm fixed to a second shaft rotatably mounted on the frame, both shafts having a common axis, and means for the selective angular indexing of the first crank arm relative to the second crank arm between at least a first position in which both crank arms are disposed in the same angular orientation and a second position in which the first and second crank arms extend in opposite directions from their common axis.

REFERENCES:
patent: 2783044 (1957-02-01), Sbarra
patent: 3062543 (1962-11-01), Shaboo
patent: 3213852 (1965-10-01), Zent
patent: 4163486 (1979-08-01), Kagata

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