Toto Ltd.

Chisato Sone

Hiroshi Hashimoto

Kenichi Nakamura

Shinichi Urata

Takumi Tsuchitani

Shigeru Okada

Kenichi Takano

Yuichi Tsubone

Koichiro Matsumura

Satoshi Yamazaki

Yuya Miyake

Provided is a flush toilet apparatus having a flush toilet main body that includes a bowl, a water discharge trap pipe, an upper water discharge port, a lower water discharge port, and a flush control device configured to execute both a large flush mode and a small flush mode. When in operation, the flush control device causes flush water to be discharged from the lower water discharge port with substantially the same amount in each of the large flush mode and the small flush mode to induce a siphon phenomenon in the water discharge trap pipe. The device also controls water discharge from the upper water discharge port so that a water level of pooled water in the bowl during the water discharge from the lower water discharge port is changed between the large flush mode and the small flush mode.

Flush toilet apparatus

A flush toilet includes a bowl part, a drainage water trap part that is connected to a bottom part of the bowl part, and a water drainage socket that is connected to the drainage water trap part and includes an upper side water drainage socket that extends downward from the drainage water trap part, a back side R part that is connected to the upper side water drainage socket and changes a flow channel so that a washing water that flows from an upper side is directed to a front side, and a horizontal pipe that extends forward from the back side R part. The back side R part and the horizontal pipe include a water storage part that stores a part of washing water. The water storage part is arranged on a lower side of a back side lower end part of the drainage water trap part.

Flush toilet

A flush toilet includes a bowl part, a drainage water trap part that is connected to a bottom part thereof, and a water drainage socket that is connected thereto and includes a back side R part that changes a flow channel so that washing water flowing from an upper side is directed to a front side, a front side R part that is provided on a downstream side of the back side R part and changes a flow channel so that washing water flowing from a back side is directed to a lower side, a water storage part that stores a part of washing water on a flow channel from the back side R part to the front side R part, and a throttle part that is provided on a downstream side of the front side R part and decreases a cross-sectional area of a flow channel thereof.

The present invention provides a flush toilet device () including: a flush toilet (); a flush water tank (); a discharge valve () that discharges the flush water stored in the flush water tank; a branching portion () that splits flush water supplied from a water supply source into first and second branched flow paths; a first on-off valve () provided in the first branched flow path and switches between spout and stop of the flush water from the upper spout port; a second on-off valve () provided in the second branched flow path and switches between supply and stop of the flush water into the flush water tank; and a controller () that controls the first and second on-off valve so that water is spouted from the upper spout port and is supplied into the flush water tank at a time by opening the first and second on-off valves.

Growing community of inventors

Fukuoka, Japan

Chisato Sone