PROBLEM TO BE SOLVED: To provide a bathing assisting device which can reduce oscillations of a seat part in a horizontal direction when a hanging device vertically moves the seat part.SOLUTION: A bathing assisting device 1 in the invention is provided in a bathtub 2 and includes a seat part 4 where a bathing person is seated, a hanging device 16 which is installed in an upper part of the bathtub, includes a hanging member 14 for hanging the seat part, moves the seat part vertically by vertically moving the hanging member, and includes a regulation mechanism 22 which regulates oscillations of the seat part 4 in a horizontal direction when the hanging device 16 vertically moves the seat part 4.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】吊り下げ装置が座部を上下動させる際に座部の水平方向の揺動を低減させることができる入浴補助装置を提供する。【解決手段】本発明は、浴槽2に設けられる入浴補助装置1であって、入浴者が座る座部4と、浴槽の上部に設置される吊り下げ装置16であって、座部を吊り下げる吊り下げ部材14を備え且つこの吊り下げ部材を上下動させることにより座部を上下動させる吊り下げ装置16と、吊り下げ装置16が座部4を上下動させる際に座部4の水平方向の揺動を規制する規制機構22と、を備えていることを特徴とする。【選択図】図3