| 摘要 |
PROBLEM TO BE SOLVED: To provide a flush toilet bowl capable of well discharging sewage or the like with a smaller amount of washing water.SOLUTION: The flush toilet bowl includes a toilet bowl part 10, and a toilet bowl drain passage 30 having an inflow port 31 opened in one of front and rear side face lower parts of the toilet bowl part 10. Herein, a water reservoir part is formed where washing water resides. A reserved water surface formed in the toilet bowl part 10 by the washing water residing in the water reservoir part has an approximately triangular shape using an end 43 which is provided on the side closer to the inflow port 31 than right and left ends 42A, 42B forming a maximum width in the horizontal direction of the toilet bowl part 10, namely, on the side closer to the inflow port 31 on or around a virtual perpendicular plane A extending in the longitudinal direction of the toilet bowl part 10, passing through the center of the inflow port 31, and the right and left ends 42A, 42B, as apexes, respectively. |
