抱上げ移乗器具の研究

移乗介助作業の抱上げ動作に関する理論的考察

抄録

We developed an instrument to aid transfer for aged person with leg fault. The instrument has a very simple structure to turn on the single fulcrum circumference and is able to reduce the load to care. For rational design, we analyze loads with a simple analytical model which is composed for rigid body link model for the instrument and human body, and linear spring model for the elasticity of bottom and seat cushion. The results of theoretical analysis explained lift up motion of the transfer. The maximum requirement moment was decreased monotonously with the decrease in an installation angle of a breastplate board. To minimize the maximum requirement moment, we should minimize the angle of tilting forward. It was possible to reduce the requirement force for lift up under 1/3 of the elder's weight by the use of the instrument.