Patent ID: 9688349
Date: 2017-06-27
CPC Classifications: B62M

Claim:
1. A chainless drive mechanism or a bicycle having: a frame; a front steering wheel; and a rear non-steering wheel; the chainless drive mechanism having two pedal arms, one said pedal arm positioned in use on each side of the bicycle, each said pedal arm having a pedal connected thereto at the forward end thereof, said pedals connected to the pedal arms by rotating joints, each said pedal arm being mounted to a crank by a respective rotating joint, the rearward end of each said pedal arm being connected to the frame of the bicycle by a respective link, each said link having a rotating joint at a first end connecting the link to the pedal arm and a rotating joint at a second end connecting the link to the frame, said cranks being rotatable and connected by a shaft through a hub of and in drivable communication with the rear non steering wheel of the bicycle, each pedal arm having a geometry where the center of the rotating joint connecting the link to the pedal arm is below a straight line that passes between the center of rotation of the rotating joint connecting the pedal to the pedal arm and the center of rotation of the rotating joint connecting the pedal arm to the crank.