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公开(公告)号：US20180195262A1
公开(公告)日：2018-07-12
申请号：US15865369
申请日：2018-01-09
Applicant: TOTO LTD.
Inventor： Hiroshi Hashimoto , Shinichi Urata , Shuichi Nagashima , Mayu Okubo , Shoko Imaizumi , Daisuke Yamamoto , Kenichi Nakamura , Takumi Tsuchitani
Abstract: A wash-out type toilet according to an embodiment includes a bowl that receives waste and a drainage water trap. The drainage water trap includes an inlet that is connected to a lower part of the bowl, a rise pipeline that is connected to the inlet and extends upward toward its own top part, a fall pipeline that extends downward toward an inlet of a drainage water pipe that is arranged on a floor surface, and an intermediate pipeline with an upstream-side portion that is connected to the rise pipeline and a downstream-side portion that is connected to the fall pipeline. Furthermore, the intermediate pipeline includes a retention surface that is formed to slope downward from an upstream side to a downstream side and temporarily retains waste at a time of toilet washing.
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公开(公告)号：US20180195261A1
公开(公告)日：2018-07-12
申请号：US15861795
申请日：2018-01-04
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
Abstract: A flush toilet according to an embodiment includes a main water guide channel, a bending water guide channel, a rim water guide channel, and a retention part. The bending water guide channel bends a flow direction of washing water supplied from the main water guide channel. The rim water guide channel causes the washing water to flow toward and to be spouted from a water spout part. The retention part is formed in at least the bending water guide channel. An upper part of the retention part is formed into an opened concave shape and the retention part retains a part of the washing water. Furthermore, the retention part is formed in such a manner that an upper end thereof on a downstream side is horizontal to a bottom surface of the water spout part or higher than the bottom surface of the water spout part.
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公开(公告)号：US10526775B2
公开(公告)日：2020-01-07
申请号：US15865373
申请日：2018-01-09
Applicant: TOTO LTD.
Inventor： Kenichi Nakamura , Hiroshi Hashimoto , Shuichi Nagashima , Mayu Okubo , Shoko Imaizumi , Shinichi Urata , Isami Sakaba , Haruka Saito , Takumi Tsuchitani
Abstract: A toilet according to an embodiment includes a toilet body and a water drainage socket. The toilet body has a water drainage outlet on a back surface thereof. The water drainage socket connects the water drainage outlet and an inlet of a water drainage pipe that is provided on a wall surface. The back surface of the toilet body is provided with an opening and a guide part. The opening is provided to insert therethrough a tubular member that extends from the wall surface in a case where the toilet body is mounted on the wall surface. The guide part guides the tubular member that is provided in a state where it is inserted through the opening so as to move to an outer side of the water drainage socket in a case where the toilet body is mounted on the wall surface.
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公开(公告)号：US10344464B2
公开(公告)日：2019-07-09
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
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：US10174490B2
公开(公告)日：2019-01-08
申请号：US15606991
申请日：2017-05-26
Applicant: TOTO LTD.
Inventor： Tatsunari Harashima , Ryoko Ishimaru , Kenichi Nakamura , Shoko Imaizumi
IPC: E03D5/01
Abstract: A flush toilet includes a reservoir tank assembled from above or behind to a predetermined installation position on the rear side of the conduit of a toilet main unit; a connecting pipe member, one end of which is disposed on the conduit of the toilet main unit, and the other end of which is connected to a reservoir tank; a tank-side connecting portion, disposed on the front side of the reservoir tank and connected to a connecting pipe member; and a seal member, connected in a watertight manner between a connecting pipe member and a tank-side connecting portion.
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Patent Agency Ranking
公开(公告)号：US11560705B2
公开(公告)日：2023-01-24
申请号：US17205834
申请日：2021-03-18
Applicant: TOTO LTD.
Inventor： Shoko Imaizumi
Abstract: The object of the present invention is to provide a washdown flush toilet which can maintain effective waste discharging performance even with a relatively smaller amount of flush water.
The present invention is a washdown flush toilet including: a bowl part configured to receive waste, and a water discharge trap conduit connected to a lower portion of the bowl part. The water discharge trap conduit includes: an inlet pipe part whose one end is continuous or connected to the lower portion of the bowl part; a trap ascending pipe part whose one end is continuous or connected to the other end of the inlet pipe part and which forms an ascending flow channel; and a trap descending pipe part whose one end is continuous or connected to the other end of the trap ascending pipe part and which forms a descending flow channel. With regard to a cross section perpendicular to a flow direction of the ascending flow channel, a portion on a downstream side of the ascending flow channel is provided with an enlarged part which has a cross section area larger than that on an upstream side of the ascending flow channel. The enlarged part is enlarged on an upper side of the ascending flow channel. An upstream end of a top surface of the enlarged part is located below a highest reachable position of a bottom surface of the ascending flow channel.-
公开(公告)号：US20180202140A1
公开(公告)日：2018-07-19
申请号：US15865373
申请日：2018-01-09
Applicant: TOTO LTD.
Inventor： Kenichi Nakamura , Hiroshi Hashimoto , Shuichi Nagashima , Mayu Okubo , Shoko Imaizumi , Shinichi Urata , Isami Sakaba , Haruka Saito , Takumi Tsuchitani
CPC classification number: E03D11/143 , E03D1/012 , E03D11/02 , E03D11/14 , E03D11/17
Abstract: A toilet according to an embodiment includes a toilet body and a water drainage socket. The toilet body has a water drainage outlet on a back surface thereof. The water drainage socket connects the water drainage outlet and an inlet of a water drainage pipe that is provided on a wall surface. The back surface of the toilet body is provided with an opening and a guide part. The opening is provided to insert therethrough a tubular member that extends from the wall surface in a case where the toilet body is mounted on the wall surface. The guide part guides the tubular member that is provided in a state where it is inserted through the opening so as to move to an outer side of the water drainage socket in a case where the toilet body is mounted on the wall surface.
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公开(公告)号：US11885109B2
公开(公告)日：2024-01-30
申请号：US17206035
申请日：2021-03-18
Applicant: TOTO LTD.
Inventor： Shoko Imaizumi
Abstract: In a washdown flush toilet, a water discharge trap conduit includes: an inlet pipe part connected to a bowl part receiving waste; a trap ascending pipe part connected to the inlet pipe part and forming an ascending flow channel; and a trap descending pipe part connected to the trap ascending pipe part and forming a descending flow channel. With regard to a cross section perpendicular to a flow direction of the ascending flow channel, a portion on a downstream side of the ascending flow channel is provided with an enlarged part having a cross section area larger than that on an upstream side of the ascending flow channel. A downstream end of the ascending flow channel and/or an upstream side of the descending flow channel is provided with a shrunk part having a cross section area smaller than that on the upstream side of the ascending flow channel.
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公开(公告)号：US10428507B2
公开(公告)日：2019-10-01
申请号：US15861795
申请日：2018-01-04
Applicant: TOTO LTD.
Inventor： Hiroshi Hashimoto , Shinichi Urata , Shuichi Nagashima , Mayu Okubo , Shoko Imaizumi , Daisuke Yamamoto , Kenichi Nakamura , Takumi Tsuchitani
IPC: E03D11/08
Abstract: A flush toilet according to an embodiment includes a main water guide channel, a bending water guide channel, a rim water guide channel, and a retention part. The bending water guide channel bends a flow direction of washing water supplied from the main water guide channel. The rim water guide channel causes the washing water to flow toward and to be spouted from a water spout part. The retention part is formed in at least the bending water guide channel. An upper part of the retention part is formed into an opened concave shape and the retention part retains a part of the washing water. Furthermore, the retention part is formed in such a manner that an upper end thereof on a downstream side is horizontal to a bottom surface of the water spout part or higher than the bottom surface of the water spout part.
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公开(公告)号：US10323400B2
公开(公告)日：2019-06-18
申请号：US15865369
申请日：2018-01-09
Applicant: TOTO LTD.
Inventor： Hiroshi Hashimoto , Shinichi Urata , Shuichi Nagashima , Mayu Okubo , Shoko Imaizumi , Daisuke Yamamoto , Kenichi Nakamura , Takumi Tsuchitani
Abstract: A wash-out type toilet according to an embodiment includes a bowl that receives waste and a drainage water trap. The drainage water trap includes an inlet that is connected to a lower part of the bowl, a rise pipeline that is connected to the inlet and extends upward toward its own top part, a fall pipeline that extends downward toward an inlet of a drainage water pipe that is arranged on a floor surface, and an intermediate pipeline with an upstream-side portion that is connected to the rise pipeline and a downstream-side portion that is connected to the fall pipeline. Furthermore, the intermediate pipeline includes a retention surface that is formed to slope downward from an upstream side to a downstream side and temporarily retains waste at a time of toilet washing.
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