PROBLEM TO BE SOLVED: To improve accuracy by predicting an action of a care receiver before bed-leaving with an inexpensive configuration.SOLUTION: A bed-leaving detection device 20 includes: a load sensor 21 that is provided between one leg of a bed for care provided in the vicinity of an elevation portion of the bed for care to an end of which an elevation portion of a care receiver is fixed and a floor surface on which the bed for care is installed and a control unit 22 that compares a load value successively outputted from the load sensor 21 with a value defined by using a load value outputted from the load sensor 21 when the care receiver sits straight on the elevation portion, and determines and outputs a state of sitting straight on the elevation portion before the care receiver leaves the bed for care.COPYRIGHT: (C)2014,JPO&INPIT【課題】廉価構成で、かつ離床前の被介護者の動作を予兆することにより精度向上をはかる。【解決手段】離床検出装置20は、被介護者の昇降部位が端部に固定された介護用ベッドの昇降部位近傍に設けられた介護用ベッドの一脚と、当該介護用ベッドが設置される床面との間に設けられた荷重センサ21と、荷重センサ21から逐次出力される荷重値と、被介護者が昇降部位に端座したときに荷重センサ21から出力される荷重値を用いて規定される値と、を比較し、被介護者が介護用ベッドから離床する前の昇降部位に端座した状態を判定して出力する制御部22と、を有する。【選択図】図2
