【摘要】 利用圆弧齿轮机构特有的传动特性,设计一款新型的自行车传动机构,它不仅能够提高自行车的运动性能,而且能够充分锻炼人的潜在生理机能,是一款适于旅游、休闲健身和代步工具于一身的现代化高档自行车变速箱。更多还原

【Abstract】 Used the specific transmission characteristics of circle gear unit,a new transmission mechanism used in bicycle was designed.It not only improved the sport performance of bicycle,but also can take enough exercise in human’s potential physiological function.It is a gearbox of top grade bicycles which suit for tourism,leisure fitness,and substitute walking.更多还原