| 摘要 |
PROBLEM TO BE SOLVED: To provide a flush toilet bowl enabling the dirt receiving surface of a bowl to be surely washed out and also enabling water saving by forming a flow to the inlet of a trap pipeline which is effective to discharge dirt. SOLUTION: This flush toilet bowl 1 includes a dirt receiving surface 14, a step part 18 formed of a vertical wall 16 on the inner peripheral front side of the dirt receiving surface, a bowl part 8 having a rim 20, the trap pipeline 12 for discharging dirt, a flushing water supply port 24 for supplying flushing water, a rim water discharge port 26, an auxiliary water discharge port 32, a flushing water guide port 30 for accepting flushing water, and an auxiliary water guide passage 34 for guiding flushing water to the auxiliary water discharge port. The auxiliary water discharge port is configured so as to be positioned further upward than the step and the level of water reserved in the bowl and discharge flushing water to the level of the reserved water, and so that the discharged flushing water collides with the vertical wall. The flow of the flushing water for washing out the dirt receiving surface of the bowl among the flushing water discharged from the rim water discharge port is set to be larger than the flow of the flushing water discharged from the auxiliary water discharge port. COPYRIGHT: (C)2011,JPO&INPIT |
