PROBLEM TO BE SOLVED: To support a user's whole body including his or her upper extremity in standing and sitting with natural motions.SOLUTION: A standing and sitting support device 100 for supporting a user's standing motion and sitting motion includes support parts 10 provided in front of a toilet seat 2 on which the user sits for supporting the thigh of the user, handrails 40 provided on lateral sides of the toilet seat 2 for supporting the arms of the user, lifting/lowering mechanisms 20 for lifting/lowering the support parts 10 so that the support parts are separated forward from the toilet seat 2 more as they rise, first lifting/lowering members 27a that are lifted and lowered together with the support parts 10 by the lifting/lowering mechanisms 20, and second lifting/lowering members 27b attached to the handrails 40 with which the first lifting/lowering members 27a are in contact in a state that the support parts 10 are lifted from the lowermost position by a predetermined distance, and which are lifted and lowered by the lifting/lowering mechanisms 20.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】使用者の上肢を含む身体全体が自然な動作で起立及び着座することを補助する。【解決手段】使用者の起立動作及び着座動作を支援する起立着座支援装置１００であって、使用者が着座する便座２の前方に設けられて使用者の大腿部を支持する支持部１０と、便座２の側方に設けられて使用者の腕を支持する手すり４０と、上昇するほど便座２から前方に離間するように支持部１０を昇降させる昇降機構２０と、昇降機構２０によって支持部１０とともに昇降する第一昇降部材２７ａと、手すり４０に取り付けられ、支持部１０が最下降位置から所定の距離だけ上昇した状態で第一昇降部材２７ａが当接し、昇降機構２０により昇降する第二昇降部材２７ｂと、を備える。【選択図】図２
