首页>
外国专利>
GEARLESS TRANSMISSION FOR A BICYCLE, CAPABLE OF PREVENTING A CHAIN FROM BEING SEPARATED FROM A BICYCLE WHEN THE SPEED OF THE BICYCLE IS CHANGED
GEARLESS TRANSMISSION FOR A BICYCLE, CAPABLE OF PREVENTING A CHAIN FROM BEING SEPARATED FROM A BICYCLE WHEN THE SPEED OF THE BICYCLE IS CHANGED
展开▼
机译:自行车的无齿轮传动,可以防止自行车速度发生变化时防止链与自行车分离
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: A gearless transmission for a bicycle is provided to efficiently drive a bicycle on uphill and downhill roads by enabling the stable speed change of the bicycle through the width increase in a variable chain belt.;CONSTITUTION: A gearless transmission for a bicycle comprises first and second pulleys (100, 200), a variable chain belt (300), and first and second belt width varying parts (400, 500). The first and second pulleys are fixed to a pedal shaft (P) and a rear wheel shaft (W), and first and second inclined belt grooves are formed thereon. The variable chain belt is fitted to the first and second inclined belt grooves to be rotated, and the rotation radius thereof in the first and second pulleys is changed to change the speed of a bicycle. The first and second belt width varying parts are formed on positions right before the first and second inclined belt grooves and increase and decrease the width of the variable chain belt.;COPYRIGHT KIPO 2013
展开▼