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公开(公告)号：US20250043559A1
公开(公告)日：2025-02-06
申请号：US18783541
申请日：2024-07-25
Applicant: TOTO LTD.
Inventor： Kenichi NAKAMURA , Hiroshi HASHIMOTO , Shinichi URATA , Takumi TSUCHITANI , Chisato SONE , Jing CHEN , Wataru ISHIMI , Naoki ABE , Daisuke YAMAMOTO
IPC: E03D11/08
Abstract: A flush toilet includes a reservoir tank, a bowl, a rim spout port, a discharge trap conduit, a jet spout port configured to spout flush water toward an inlet of the discharge trap conduit, a jet water conduit configured to supply the flush water from the reservoir tank to the jet spout port, and a discharge device configured to supply or stop supplying the flush water to the jet water conduit, wherein the flush water is spouted at a first flow rate from the jet spout port when the discharge device is driven and the flush water in the reservoir tank flows into the jet water conduit and, after spouting of the first flow rate ends, the flush water is spouted at a second flow rate from the jet spout port due to the flush water retained in the jet water conduit flowing toward the jet spout port.
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公开(公告)号：US20230100206A1
公开(公告)日：2023-03-30
申请号：US17931011
申请日：2022-09-09
Applicant: TOTO LTD.
Inventor： Hiroshi HASHIMOTO , Kenichi NAKAMURA , Shinichi URATA , Kazunari YASUI , Isami SAKABA , Yuichi TSUBONE , Shigeru OKADA , Satoshi YAMAZAKI
Abstract: A flush toilet includes a bowl including a waste receiving surface, a rim and a well portion; a water spouting part that spouts flush water toward the bowl; and a water discharge trap including an inlet connected to a lower part of the well portion, the water discharge trap discharging waste in the bowl, the well portion includes a bottom wall formed above and in front of the inlet of the water discharge trap, a side wall formed to surround a periphery of the bottom wall, and a joining portion that joins an outer edge of the bottom wall and a bottom edge of the side wall with a surface having a curvature, and the bottom wall of the well portion includes a concave portion formed to recess downward on left and right sides with respect to a center axis in a left-right direction in a front sectional view.
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公开(公告)号：US20250043561A1
公开(公告)日：2025-02-06
申请号：US18779213
申请日：2024-07-22
Applicant: TOTO LTD.
Inventor： Koichiro MATSUMURA , Takumi TSUCHITANI , Kenichi NAKAMURA , Hiroshi HASHIMOTO , Chisato SONE , Shinichi URATA , Daisuke YAMAMOTO , Koichi MOTOOKA , Kenji HATAMA
Abstract: A siphon jet flush toilet comprises: a bowl; a rim spout port suppling flush water to the bowl; a discharge trap conduit; a jet spout port spouting flush water toward an inlet of the discharge trap conduit; a reservoir tank including a jet spouting discharge valve and storing flush water; a jet water conduit configured to guide the flush water in the reservoir tank to the jet spout port; and a controller being configured to control a rim spouting in which the flush water is spouted from the rim spout port and a jet spouting in which the flush water is spouted from the jet spout port, wherein the jet spouting discharge valve includes a valve body, the valve body being arranged at a position that is lower than an upper surface of the bowl and higher than a seal water level, and before opening the jet spouting discharge valve, the flush water is supplied to the jet water conduit.
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Patent Agency Ranking
公开(公告)号：US20230313513A1
公开(公告)日：2023-10-05
申请号：US18121705
申请日：2023-03-15
Applicant: TOTO LTD.
Inventor： Takumi TSUCHITANI , Kenichi NAKAMURA , Hiroshi HASHIMOTO , Shinichi URATA , Chisato SONE , Koichiro MATSUMURA
Abstract: The present invention is a flush toilet apparatus including a flush toilet main body that includes a bowl, a water discharge trap pipe, an upper water discharge port, and a lower water discharge port, and a flush control device configured to execute a large flush mode and a small flush mode, in which the flush control device causes the 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, while controlling the 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.
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公开(公告)号：US20160222641A1
公开(公告)日：2016-08-04
申请号：US15007746
申请日：2016-01-27
Applicant: TOTO LTD.
Inventor： Shinichi URATA , Keisuke OKADA
IPC: E03D11/08
CPC classification number: E03D11/08 , E03D2201/40
Abstract: A flush toilet having a bowl portion including a waste receiving surface, a rim portion, a shelf portion, and a concave portion; a discharge passage for discharging waste; a first spout port for spouting flush water on a shelf portion of the bowl portion to form a circulating flow; a second spout port for spouting flush water in the same direction as the circulating direction of flush water spouted from a first spout port and toward the rear of the bowl portion; a first water conduit for supplying flush water to the first spout port; and a second water conduit for supplying flush water to the second spout port. The first and second water conduits are formed so that the flow rate of flush water spouted from the second spout port is greater than the flow rate of flush water spouted from the first spout port.
Abstract translation: 具有包括废物接收表面的碗部分，边缘部分，搁架部分和凹部的抽水马桶; 用于排放废物的排放通道; 用于在所述碗部的搁架部分上喷射冲洗水以形成循环流的第一喷口; 第二喷口，用于以与从第一喷口端口朝向碗部的后方喷射的冲洗水的循环方向相同的方向喷射冲洗水; 用于向第一喷口供给冲洗水的第一水管; 以及用于向第二喷口供给冲洗水的第二水管。 形成第一和第二水导管，使得从第二出水口喷出的冲洗水的流量大于从第一出水口喷出的冲洗水的流量。
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公开(公告)号：US20230066417A1
公开(公告)日：2023-03-02
申请号：US17822650
申请日：2022-08-26
Applicant: TOTO LTD.
Inventor： Hiroshi HASHIMOTO , Kenichi NAKAMURA , Takumi TSUCHITANI , Shinichi URATA , Chisato SONE , Koichiro MATSUMURA
Abstract: The present invention provides a flush toilet device (1) including: a flush toilet (2); a flush water tank (10); a discharge valve (12) that discharges the flush water stored in the flush water tank; a branching portion (33) that splits flush water supplied from a water supply source into first and second branched flow paths; a first on-off valve (19) 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 (17) 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 (28) 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.
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公开(公告)号：US20180080208A1
公开(公告)日：2018-03-22
申请号：US15697741
申请日：2017-09-07
Applicant: TOTO LTD.
Inventor： Hiroshi HASHIMOTO , Shinichi URATA , Shuichi NAGASHIMA , Mayu OKUBO , Shoko IMAIZUMI , Daisuke YAMAMOTO , Kenichi NAKAMURA , Takumi TSUCHITANI
IPC: E03D11/08
CPC classification number: E03D11/08 , E03D2201/30 , E03D2201/40
Abstract: The present invention is a flush toilet (1) including: a bowl portion (8) having a bowl-shaped waste receiving surface (16), a rim portion (18), and a well portion (20) formed at the bottom of the waste receiving surface; a discharge trap pipe (12) connected to the bottom portion of the well portion; a flush water guide portion (40b) disposed on the waste receiving surface at the rear of the well portion so that flush water is directed toward the side wall surface inside the well portion; and a liquid membrane spouting portion (24) disposed on the rim portion, wherein this liquid membrane spouting portion induces a vertical circulating flow in the well portion, produced when discharged flush water assumes a liquid membrane form and collides with a flush water guide portion, and the colliding flush water drops along the side wall surface of the well portion.
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公开(公告)号：US20170268214A1
公开(公告)日：2017-09-21
申请号：US15452866
申请日：2017-03-08
Applicant: TOTO LTD.
Inventor： Shinichi URATA , Tsuyoshi OZEKI , Hiroshi TOMONARI
IPC: E03D11/08
CPC classification number: E03D11/08 , E03D1/00 , E03D2201/40
Abstract: A flush toilet of present invention includes a bowl that includes a bowl-shaped waste receiving surface, a rim formed above the waste receiving surface, and a pooled water portion formed below the waste receiving surface, a discharge passage that has an inlet connected to the pooled water portion and discharges waste, and a spout portion that spouts flush water onto the bowl and forms a swirling flow on the waste receiving surface. The waste receiving surface of the bowl has a sectorial recess that is formed between a front end portion of the waste receiving surface and a front end portion of the pooled water portion so as to spread from the pooled water portion toward the front end portion of the waste receiving surface.
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