PROBLEM TO BE SOLVED: To provide a bathing assistant device loadable stably on a curved rim part upper surface.SOLUTION: In order that a bathing assistant device can be loaded horizontally on such a bathtub that a rim part upper surface in a first direction has both end sides formed higher than the center side, a detachable spacer, one end side and the other end side of which have each different height, is provided under a pair of side frame parts.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】湾曲なリム部上面に安定して載置可能な入浴介助装置を提供する。【解決手段】第一の方向のリム部上面が中央側よりも両端側の方が高く形成された浴槽に対して、前記入浴介助装置を水平に載置することを可能にするように、一対の前記サイドフレーム部の下方に、一端側と他端側の高さが異なる着脱自在なスペーサーを設けた。【選択図】図1