RECUMBENT BICYCLE Russian patent published in 2015 - IPC B62K3/00 

FIELD: transport.

SUBSTANCE: invention relates to recumbent bicycle. This bicycle comprises frame with seat provided with backrest at rear wheel and front pivot drive wheel, drive wheel fork being fitted in the frame bearings and provided with handle bar. Said frame is provided with extensions on sides of front pivot wheel, shaft running in bearings of the latter and provided with con rods, pedals and drive sprocket. This shaft extends through bore in drive wheel hub. Horizontal countershaft with sprockets on ends is fitted on the frame, nearby said handle bar. Drive sprocket is engaged by the chain with one of countershaft sprockets while countershaft other sprocket is engaged via chain with front wheel hub sprocket. Countershaft is composed of planetary bush with flange for sprocket to be secured thereto to turn about axle parallel with handle bar pivot axis. Turn of planetary bush on axle parallel with the fork pivot pin is engaged with handle bar lever with pin and with lever with fork surrounding said pin. Planetary bush turn angle equals half the turn angle of front wheel fork turn.

EFFECT: lower handle bar control force.

3 dwg