マルチボディダイナミクスによるテレスコピックブーム型介護リフトの開発と最適設計

抄録

Recently a number of nursing care equipments to aid lift and transfer for aged person have been developed. Especially, rotational boom type care lifts are widely used because of its simplicity and usefulness. However, this type of lifts give mental and physical burden to cared person since while lifting up human body becomes unnatural posture. Hence, in this paper, we propose a telescopic boom type care lift in order to approximate lift-up motion to a natural human standing-up trajectory. By using a multibody dynamics approach, we show that the proposed mechanism can achieve nearly natural standing-up motion and is able to reduce required force to lift-up than conventional type lift. Then, we develop a prototype telescopic boom type care lift and verify its effectiveness through experiments. Finally, we also consider the optimal design problem of the proposed care lift to further reduce mental and physical burden.