PROBLEM TO BE SOLVED: To enable a person, who cannot go up and down on stairs by oneself because of being mainly in a bedridden condition or using a wheelchair, to go up and down on stairs without electricity by using his/her wheelchair or his/her bed.SOLUTION: One end of a tightly winding spiral spring is connected to a building side, another end is connected to a wheelchair or a bed, and the stairs are covered with a board, thereby going up and down on stairs is enabled by one or two attending helpers.COPYRIGHT: (C)2014,JPO&INPIT【課題】主に寝たきりの状態や車椅子利用などにより、自力では階段を昇降できない方の車椅子やベットを電気を使用しないで昇降できるようにすること。【解決手段】密着形渦巻きバネの一端を建屋側に接続し、もう一端を車椅子やベットに接続して、階段は板でカバーし、1~2名の介助者付きで階段を昇降できるようにする。【選択図】図1
