A multi-stage transmission bicycle, comprises: a bicycle body having a front wheel and a rear wheel which are rotatably fixed to a frame, pedals which are fixed to the frame and rotate; a transmission plate which rotates with the pedals and has a plurality of transmission gear teeth formed concentrically on the surface and driving gear teeth on the outer peripheral side; a transmission unit having an input shaft, which is coupled to the driving teeth and is for receiving transmission of the rotational force, a ring gear, which rotates by means of the input shaft, an output shaft, which is disposed inside the ring gear, has a sun gear, and is coupled to the rear wheel, pinion gears, which are coupled to the sun gear and inner gear teeth of the ring gear, a carrier, which couples the pinion gears, and a driving gear which is gear coupled to the carrier, and a driving gear which is gear coupled to the carrier; and a number-of-revolutions changing module for changing the rotational direction of the driving gear and the number of revolutions of the driving gear.
MULTI-STAGE TRANSMISSION BICYCLE
FAHRRAD MIT MEHRSTUFIGEM GETRIEBE
BICYCLETTE À TRANSMISSION À ÉTAGES MULTIPLES
2019-11-06
Patent
Electronic Resource
English