PROBLEM TO BE SOLVED: To provide a care chair which can perform shifting of all of postures of lying, floor sitting, chair seating and standing, by one machine, with one button switch.SOLUTION: A user having walking difficulty who is unable to support his/her body in bending a knee joint shifts forward of a hip body weight gravity center by forward horizontal shifting while a backrest 1, an armrest 2, and a horizontal bending seat plate 22 are lifted. A portion having moved forward of the bending seat plate is bent and suspended and an area of the seat plate is reduced sequentially. Immediately before the area is dissipated due to lifting of the bending seat plate and suspension of the bending seat plate, the knee joint is extended to form an upright standing posture. Reversely, when a back in a standing posture is placed against the backrest, a chair seating posture, a floor sitting posture, and a lying posture are freely changed with only an intention of the user himself/herself to enhance a self recovery desire. The mechanism can be mounted on a care chair and an automobile seat as well as a body rotation device to contribute to ensure safety of a care giver and a care receiver and to eliminate mind/body fatigue.SELECTED DRAWING: Figure 1-1COPYRIGHT: (C)2016,JPO&INPIT【課題】ボタンスイッチ一つで、横臥、床座、椅子着座、立脚まで、一機で一貫移行する介護椅子を提供する。【解決手段】屈曲膝関節で体重を支えられない歩行困難者は、背もたれ1や肘掛2及び水平の屈曲座板22がそのまま上昇しながら前方水平移行により臀部体重重心も前方移行、屈曲座板の前方移動分は屈曲垂下して座板面積は順次縮小、屈曲座板上昇と屈曲座板垂下で面積消滅寸前では膝関節が伸びて直立立脚体位に、この逆が、立脚体位背中を背もたれに預ければ、椅子着座体位、床座体位、横臥体位と、自己意思のみで自由体位変化を可能として自己回復意欲高揚を図り、この機構を介護椅子から自動車座席にまで本体回転装置も装填で、介護者の及び被介護者の安全と心身疲労の解消にも貢献する。【選択図】図1-1
