Abstract: This toilet device has a water supply portion configured to supply flush water to a toilet bowl, a vacuum breaker provided in the water supply portion; and a connection pipe connected to the vacuum breaker, wherein the connection pipe is configured to drain the water overflowing from the vacuum breaker when malfunction occurs in the vacuum breaker as a drainage channel, and the connection pipe is configured to prevent backflow of sewage in the toilet bowl as a suction channel at the time of applying negative pressure.

Abstract: Provided is a gasket capable of reducing the risk of water leakage from a sealing member for use to join a ceramic member. The gasket is made of elastic material and usable for joining two members which form a flow passage for liquid, and at least one of which is a ceramic member. The gasket includes: a base having a loop shape; a protrusion standing on the base, extending along the loop shape, and protruding toward one of the members; and a retainer formed on an inner periphery of the base and protruding from the inner periphery in an inward direction with respect to the loop shape.

Abstract: To provide a toilet bowl device allowing bubbles to be discharged with ease even in a case where a bowl is supplied with the bubbles. In a toilet bowl device, a control unit executes a pre-jet washing step for bubbles of supplying wash water to a bowl via a jet discharge port and a pre-rim washing step for bubbles of supplying wash water to the bowl via a rim discharge port after the pre-jet washing step for bubbles is initiated in a case where bubbles are present on a stored water surface.

Abstract: A bubble generator includes an ejector including a flow passage, a water supplier that supplies water into the flow passage, an air supplier that supplies air into the flow passage, a cleaner supplier that supplies a cleaner into the flow passage, and a bubble discharger that discharges bubbles generated by mixing the water, the air, and the cleaner; a water supply device that supplies water to the flow passage via the water supplier, and a cleaner supply device that supplies the cleaner to the flow passage via the cleaner supplier. The cleaner supplier is formed on a lower surface of the flow passage.

Abstract: A flush toilet includes a toilet bowl part, flush water conduits that guides flush water toward the toilet bowl part, a bubble passage provided separately from the flush water conduits, the bubble passage that guides bubbles toward the toilet bowl part, and a bubble generator provided in the bubble passage, the bubble generator that generates bubbles.

Abstract: A flush toilet of the present invention includes a bowl; a toilet drainage water pathway which communicates with the bowl and a drainage water socket and into which a cleaning water flows from the bowl; and a valve portion which includes a rotating axis and a flapper, and which is configured to open and close the toilet drainage water pathway, the rotating axis being provided in the toilet drainage water pathway, the flapper being connected to the rotating axis and being provided so as to be capable of rotating about the rotating axis.

Abstract: A bubble generator includes an ejector including a flow passage, a water supplier that supplies water into the flow passage, an air supplier that supplies air into the flow passage, a cleaner supplier that supplies a cleaner into the flow passage, and a bubble discharger that discharges bubbles generated by mixing the water, the air, and the cleaner; a water supply device that supplies water to the flow passage via the water supplier, and a cleaner supply device that supplies the cleaner to the flow passage via the cleaner supplier. The cleaner supplier is formed on a lower surface of the flow passage.

Abstract: A flush toilet includes a toilet bowl part, flush water conduits that guides flush water toward the toilet bowl part, a bubble passage provided separately from the flush water conduits, the bubble passage that guides bubbles toward the toilet bowl part, and a bubble generator provided in the bubble passage, the bubble generator that generates bubbles.

Abstract: A flush toilet of the present invention includes a bowl; a toilet drainage water pathway which communicates with the bowl and a drainage water socket and into which a cleaning water flows from the bowl; and a valve portion which includes a rotating axis and a flapper, and which is configured to open and close the toilet drainage water pathway, the rotating axis being provided in the toilet drainage water pathway, the flapper being connected to the rotating axis and being provided so as to be capable of rotating about the rotating axis.

Abstract: A toilet flush tank is provided that is capable of preventing an increase in the external dimensions of a toilet main body even when the toilet flush tank is placed below the upper surface of a toilet main body and is also capable of performing toilet cleaning in a stable manner. A toilet flush tank stores cleaning water to be provided to a toilet main body having a toilet bowl and a toilet drainage channel that communicates with the downstream side of the toilet bowl. This toilet flush tank is placed inside a space below the toilet bowl and provided with a recessed portion that conforms to the shape of the toilet drainage channel at the upper surface of the toilet flush tank.

Abstract: A toilet flush tank is provided that is capable of preventing an increase in the external dimensions of a toilet main body even when the toilet flush tank is placed below the upper surface of a toilet main body and is also capable of performing toilet cleaning in a stable manner. A toilet flush tank stores cleaning water to be provided to a toilet main body having a toilet bowl and a toilet drainage channel that communicates with the downstream side of the toilet bowl. This toilet flush tank is placed inside a space below the toilet bowl and provided with a recessed portion that conforms to the shape of the toilet drainage channel at the upper surface of the toilet flush tank.