Cycle pedal gear with elliptical rotation comprises rod on each side receiving pedal at one end and eyelet at other, crank end rotates about spindle in rod middle and eyepiece translates horizontally in runner

摘要

The pedal gear driving a chain pinion comprises a rod on each side receiving a pedal (P) at one end and an eyelet at the other end. The rod is provided in its middle with a spindle in which the end of the crank (M) rotates. The eyepiece translates horizontally in a runner fixed to the cycle. This translation causes the crank to rotate about the spindle and induce an elliptical trajectory to the pedal