| 摘要 |
PROBLEM TO BE SOLVED: To provide a toilet bowl flushing device capable of smoothly controlling an automatic flush, a manual flush and a function of the stop (cleaning mode) of the automatic flush by means of two sets of sensors. SOLUTION: A first sensor means and a second sensor means project infrared light to a detection body by means of flood light projectors, reflected light from the detection body is received by a light receiving means to make a sensory decision in accordance with quantity of light to be received as active type infrared-ray sensors, the flood light projector of the first sensor means has a different direction from the flood light projector of the second sensor means in their flood light projection spheres, and both of them are crossed to install so as to partially overlap. A water supply controlling means includes an automatic flushing function to supply water when the first sensor means becomes a non-sensible state after it has continued a sensible state more than predetermined time, a manual flushing function to supply water when both first and second sensors simultaneously become a sensible state and a function for stopping the automatic flush when the first sensor means becomes a non-sensible state and when the second sensor means becomes a sensible state. COPYRIGHT: (C)2004,JPO
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