G07
齒輪組與平皮帶輪
Gear and Flat Plate

左方是三個齒輪對,由右邊手把輸入動力後,經過皮帶傳至摩擦輪再輸入齒輪組,最後傳到後方的摩擦輪。


On the left are three gear sets. The force input by the handle the right is transferred to the friction wheel by belt then into the gear set, and then lastly directed into the friction wheel in the back.