| 摘要 |
PROBLEM TO BE SOLVED: To provide a flush toilet bowl with a simple structure capable of preventing an overflow of washing water of a water storage tank. SOLUTION: This flush toilet bowl 1 has a toilet bowl body 2 having a bowl part 12, water discharge ports 16 and 18 of the washing water and a drain trap conduit 14, the water storage tank 20 storing the washing water, a water supply passage 24 supplying the wash water to this water storage tank, a solenoid opening-closing valve 34 arranged in this water supply passage and opening-closing the water supply passage so that a water level in the water storage tank becomes a predetermined water level or less, a booster pump 22 pressurizing and supplying the wash water of the water storage tank to the water discharge ports, a float device 66 having a float 66b floating on a water surface of the wash water of the water storage tank, and a flow passage switching valve 42 connected with this float device, that is, the flow passage switching valve 42 draining the wash water from the water supply passage to the bowl part by switching a flow passage to the water storage tank from the water supply passage to a drainage channel 44 communicating with the bowl part from the water supply passage, when the float of this float device floats in a higher position than the predetermined water level of the water storage tank. COPYRIGHT: (C)2009,JPO&INPIT
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