| 摘要 |
PROBLEM TO BE SOLVED: To provide a bathtub system capable of imparting a sufficient massage effect to a bather. SOLUTION: The bathtub system 11 is provided with a bathtub 2, an advance part 3 attached to the back side face 2a of the bathtub 2, and a driving means 4 for driving the advance part 3. The surface of the advance part 3 can be displaced between a standard state and an advance state wherein it is advanced to the inside of the bathtub 2 compared to the standard state. Then, the back side face 2a of the bathtub 2 is turned to a concave surface, a concave part 2c is formed in an area on the side of the back side face 2a on a bottom surface 2b, and the bottom surface of the concave part 2c is also turned to the concave surface. COPYRIGHT: (C)2008,JPO&INPIT
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