The model research of upper limb and toothbrush in ergonomics

A new type of man machine model between upper limbs and toothbrush has been established. The research involves the analysis and designing of toothbrush in ergonomic aspect. Using this method, the mechanism motion analysis has been done from related portions of the upper limb and brushing motion analysis. The work gets some man-machine rules for brushing. That built foundation in brushing product design and toothbrush design structure relations.