05-07-2018 дата публикации
Номер: WO2018124341A1
Принадлежит:
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 number-of-revolutions changing module for changing the rotational direction of the driving gear and the number of revolutions of the ...
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