PROBLEM TO BE SOLVED: To realize reduction of fatigue in work by reducing a burden of muscle power in an upper extremity in the work keeping the upper extremity at a high place in a half-sitting posture accompanying a standing posture and walking.SOLUTION: A buffer structure for supporting a lifted upper extremity and a structure holding the buffer structure are attached in each right/left chest front face, are disposed so as to fill a space between the chest front face and the upper extremity in the lifted upper extremity posture, bear a self-weight of the upper extremity, and reduce muscle power required for the upper extremity and reduce fatigue. The buffer structure has an air chamber shape of an elastic body having air-tightness, can be used as an air spring, and thereby the human body attachment type fatigue reduction device having light weight and good attachment feel to a human body is realized.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】立位および歩行を伴う中腰状態において上肢を高所に維持する作業において、上肢部の筋力の負担を軽減させ、作業における疲労の低減を実現する。【解決手段】左右各々の胸部前面に、持ち上げた上肢部を支持するための緩衝構造物およびそれを保持する構造物を装着し、それを上肢の持ち上げた姿勢時に胸部前面部と上肢との空間を埋める様に配し、上肢の自重を負荷させることで上肢部に必要となる筋力を軽減させ、疲労を軽減させる。緩衝構造物は、気密性を有した弾性体の空気室状のものとすることで、空気ばねとして利用することができ、軽量かつ人体への装着感の良い人体装着型疲労軽減装置を実現する。【選択図】図4
