RECUMBENT BICYCLE WITH LINEAR DRIVE Russian patent published in 2013 - IPC B62K3/00 

FIELD: transport.

SUBSTANCE: invention relates to vehicles with muscle drive. Proposed recumbent bicycle comprises frame with seat mounted at front rotary wheel and rear wheel, fork with handle-bar fitted in frame bearings. Shaft with drive sprocket runs in frame bearings and is engaged with one of driven wheel sprockets. Driven wheel has set of sprockets, free running coupling and shifting lever. Shaft with drive sprocket is equipped with two crank-and-rocker mechanisms arranged on opposite sides of said shaft cranks of which are opposed while pedal is secured to every con-rod. Rockers are articulated by one end with con-rod and, by opposite end, with yoke with eccentric or screw. Yoke is squeezed at guide tube coupled by bracket with bicycle frame. Shaft with drive sprocket arrange between front and rear wheels, nearby front wheel.

EFFECT: simplified design, fast adjustments.

3 dwg