旱冰鞋集运动、娱乐、代步于一体,靠人两脚交替向侧后方蹭踏产生的反作用力的一个分力推动滑行前进,这样的旱冰鞋会大量消耗人的体力。根据中学物理重力和机械传动等有关知识,我设计并制作了一双重力驱动式旱冰鞋。一、结构如图所示,重力驱动式旱冰鞋由鞋体和底盘两个独立部分 Roller skates set sports, entertainment, and travel in one body, relying on the force of a person’s two legs alternately to the lateral rear pedaling force to promote sliding forward, such roller skates will consume a lot of people’s physical strength. According to secondary school physical gravity and mechanical transmission and other related knowledge, I designed and produced a dual force-driven roller skates. First, the structure shown in the figure, gravity-driven roller skates from the shoe body and the chassis two separate parts