| 摘要 |
PROBLEM TO BE SOLVED: To substantially increase the strength even with the conventional thickness and a resin material without increasing the thickness and altering the resin material. SOLUTION: This apron 1 is manufactured into a rectangular flat plate by press molding of a resin material, and the inner side surface is disposed opposedly to the outside surface of a bathtub body 11, the upper side edge is joined with the upper side edge of the bathtub body 11 and the side end edge is connected through a connecting fixed member 13 to the bathtub body 11, while a buffer member 14 is interposed between the lower side of the inside surface and the lower side of the outside surface of bathtub body. Then, in a nearly central position as viewed in a plan of the inside surface surrounded by the upper side edge of the bathtub body 11, the connecting fixed member 13 and the buffer member 14 is embedded a reinforcing seat member 2 having the rectangular shape corresponding to the profile of the apron. |
