PROBLEM TO BE SOLVED: To provide a bathtub that can reduce an influence of a reinforcing rib on a surface shape of the bathtub.;SOLUTION: A molded resin bathtub 1 comprises a bathtub body 2, a flange part 3 molded integrally with an upper periphery of the bathtub body 2, and a reinforcing rib 7 molded integrally with an outside surface of the bathtub body 2 and a back surface of the flange part 3. The reinforcing rib 7 is formed by being divided. The reinforcing rib 7 may be divided across a root part 3a of the flange part 3, and the bathtub may comprise a reinforcing bracket 8 for connecting divided reinforcing ribs 71 and 72.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2019,JPO&INPIT
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