PROBLEM TO BE SOLVED: To provide an assisting device that is small and lightweight while ensuring assist torque necessary for flexion and extension of a knee joint.SOLUTION: An assisting device includes: a first brace 10 capable of being worn by a first node part having a joint of a human body as a reference point； a second brace 20 capable of being worn by a second node part having the joint as a reference point； and a leaf spring 30 which is connected between the first brace and the second brace and of which plate surface is oriented in a direction corresponding to a rotation direction of the joint of the human body.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】膝関節の屈伸動作に必要なアシストトルクを担保しつつ、小型かつ軽量なアシスト装置を提供する。【解決手段】人体の関節を基点とする第１の節部に装着可能な第１装具１０と、関節を基点とする第２の節部に装着可能な第２装具２０と、第１装具及び第２装具間に接続され、板面が人体の関節における回転方向と対応する方向に向けられた板バネ３０とを備える。【選択図】図２
