By CAD, based on diagrammatize principle, the dimensions of every parts in cracker rocker mechanism under different conditions are determined, and design demands are satisfied.

将图解原理解析化，完成不同条件下满足设计参数的曲柄摇杆机构各构件尺寸确定，整个过程借助计算机辅助设计。

A new training apparatus for legs based on crank and rocker mechanism,is proposed in this paper.It can simulate the to-and-fro motion of the sporter's legs realistically.

介绍了一种最新研制的训练腿部力量的健身器械,该健身器械采用了曲柄摇杆机构,能真实地模拟运动员双腿交替运动。