| 摘要 |
PROBLEM TO BE SOLVED: To attach a bathtub water cleaning hot insulation device from the bathroom of a bathroom unit, and simply and easily perform detachment and attachment of the bathtub water cleaning hot insulation device in maintenance work. SOLUTION: An opening part 22 provided on the wall panel 3 of a bathtub unit, a housing board 32 fitted and fixed in the opening part 22 so that a housing recess part 32a is projected on the rear side of the wall panel and in which the housing recess part 32a is opened in a bathroom, and a bathtub water cleaning hot insulation device 37 housed in the housing recess part 32a of the housing board are provided. A plurality of pieces of piping 26-29 connected to the discharge opening, the suction opening or the like of the bathtub are disposed on the rear side of a part having the opening part 22 of the wall panel, derived in the bathroom through the opening part 22 from a position downward of the housing recess part 32a of the housing board 32, and a piping upper end 31 derived through the opening part 22 in the bathroom and the connection pipe 38 of the lower part of the bathtub water cleaning hot insulation device 37 housed in the housing recess part 32a of the housing board are detachably connected in the bathroom. |
