Abstract: A toilet device includes a toilet body that has a toilet bowl, a toilet seat that is attached to the toilet body and has a bowl facing surface facing an inner surface of the toilet bowl in the up-and-down direction and provided on a back surface thereof, a discharge part that can discharge a cleaning liquid so that the cleaning liquid runs along a bowl facing surface, and a guide that can guide a part of the cleaning liquid so that the cleaning liquid runs along an inner peripheral side portion of the bowl facing surface.

Abstract: A first cleaning nozzle and a second cleaning nozzle configured to be capable of being advanced and retracted and perform private part cleaning on a human body in an advanced state; a shutter configured to open and close an opening through which the first cleaning nozzle and the second cleaning nozzle are advanced and retracted; and a shutter water film forming portion configured to supply water to a front surface of a shutter main body of the shutter to form a water film are provided.

Abstract: Provided are valve devices and flow heads for a valve device. A valve device can include a valve body (30) that opens and closes a valve hole (15a) to allow communication between a primary flow path (17a) and a secondary flow path (17b), a back pressure chamber (7) defined at the back side of the valve body, a small hole (51) that is provided in the valve body to allow the primary flow path of and the back pressure chamber to communicate with each other, and a pin (6) that has a straight portion inserted into the small hole to clean the small hole by relative motions of the small hole and the straight portion. A flow head (34) may be annular and include one or more notches along a perimeter and be configured to engage with an inner peripheral surface of an upper end portion of an inner barrel of the valve device.

Abstract: Provided are valve devices and flow heads for a valve device. A valve device can include a valve body (30) that opens and closes a valve hole (15a) to allow communication between a primary flow path (17a) and a secondary flow path (17b), a back pressure chamber (7) defined at the back side of the valve body, a small hole (51) that is provided in the valve body to allow the primary flow path of and the back pressure chamber to communicate with each other, and a pin (6) that has a straight portion inserted into the small hole to clean the small hole by relative motions of the small hole and the straight portion. A flow head (34) may be annular and include one or more notches along a perimeter and be configured to engage with an inner peripheral surface of an upper end portion of an inner barrel of the valve device.

Abstract: A toilet device includes a toilet body that has a toilet bowl, a toilet seat that is attached to the toilet body and has a bowl facing surface facing an inner surface of the toilet bowl in the up-and-down direction and provided on a back surface thereof, a discharge part that can discharge a cleaning liquid so that the cleaning liquid runs along a bowl facing surface, and a guide that can guide a part of the cleaning liquid so that the cleaning liquid runs along an inner peripheral side portion of the bowl facing surface.

Abstract: A first cleaning nozzle and a second cleaning nozzle configured to be capable of being advanced and retracted and perform private part cleaning on a human body in an advanced state; a shutter configured to open and close an opening through which the first cleaning nozzle and the second cleaning nozzle are advanced and retracted; and a shutter water film forming portion configured to supply water to a front surface of a shutter main body of the shutter to form a water film are provided.

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.

Abstract: Air suction device for a flush toilet configured to suction air from a toilet drain duct having a suction chamber dividing a tank body interior, a float in the suction chamber and an on-off valve closing an air inlet when the float lifts to prevent air flow from the toilet drain duct side into the suction chamber. The air inlet is higher than the water level in a toilet flushing standby mode. The on-off valve opens the air inlet to allow air flow form the drain duct side in the suction chamber when flush water in the tank drops such that the float is lowered form the raised position. An embodiment includes a valve chest, a float and attracting member for on-off valve manipulation. Another embodiment includes a valve chest with a small air flow manipulation hole.

Abstract: Providing a toilet flushing device and a flush toilet both of which can desirably execute toilet flushing. A toilet flushing device (20) includes a first tank (21) storing flush water, a second tank (22) having a lower opening (22C) communicating with the first tank (21) and having a lower region (22D) and an upper region (22U) with a larger capacity per unit height than the lower region (22D), an air passage (23) communicating between the second tank (22) and a toilet drainage (12) via a position located higher than a maximum storage water level (L) in the first tank (21), a water-supply passage (24) communicating between the first tank (21) and a toilet bowl (11) and a on-off valve (25) which maximizes a flow rate of an air in the air passage (23) with a delay to initiation of supply of flush water stored in the first tank (21) through the water-supply passage (24) into the toilet bowl (11), the air flowing from the toilet drainage (12) side to the second tank (22) side.

Abstract: A flush tank device (10) includes a tank body (20) storing flush water to flush a toilet body (1), a water supply device (30) supplying flush water into the tank body, and an air suction device (40) sucking air in a toilet drain duct (3).