During inversion, each instantaneous cam mechanism is transformed into an Assur-group in this method. So we can complete the kinematic analysis of the cam mechanism by the analysis of the corresponding Assur- group.

• 该方法是把反转中的凸轮机构的各个瞬时机构转化为杆组，通过对杆组的分析完成对凸轮机构从动件的运动分析。