公开(公告)号：US20250059749A1

公开(公告)日：2025-02-20

申请号：US18800587

申请日：2024-08-12

Applicant: TOTO LTD.

Inventor： Hideaki KASHIMURA ,  Daichi OKADA ,  Ayako HABU ,  Satoshi MATSUNAKA ,  Seika TATSUOKA

IPC: E03D1/26 ,  E03D1/33 ,  E03D1/34 ,  E03D5/02

Abstract: Provided is a flush toilet device in which flushing can be effectively performed with small amount of flush water by accurately setting opening times for individual drain valves. A flush toilet device (1) of the present invention includes a flush toilet main body (2), a flush water tank (4), a first drain valve (10) configured to control flush water from a rim spout port (2d) by opening and closing a first drain port (4b) provided in the flush water tank, a second drain valve (12) configured to control flush water from a jet spout port (2e) by opening and closing a second drain port (4c) provided in the flush water tank, and a hydraulic drive mechanism (16) configured to open the first or second drain valve by using water supply pressure of flush water supplied from a tap water supply line to the flush water tank.

公开(公告)号：US20230069634A1

公开(公告)日：2023-03-02

申请号：US17822621

申请日：2022-08-26

Applicant: TOTO LTD.

Inventor： Hideki TANIMOTO ,  Koki SHINOHARA ,  Kenji HATAMA ,  Makoto ABE ,  Seika TATSUOKA

IPC: E03D1/34 ,  E03D3/02

Abstract: The present invention provides a flush water tank device (4) that supplies flush water to an upper and lower spout port of a flush toilet (2) including; a flush water tank (10); a discharge valve (12); a first on-off valve (19) that performs switching between ejection and stopping of the flush water from the upper spout port; a first on-off valve driving mechanism (16) that is moved from a stopped position to an ejection position based on an user operation; a biasing mechanism (17) that causes the first on-off valve driving mechanism to move to the stopped position; a holding mechanism (20) that holds, at the ejection position, the first on-off valve driving mechanism at the ejection position against the bias force; and a releasing mechanism (21) that releases the holding of the first on-off valve driving mechanism, using the flush water flowing out from the first on-off valve.

公开(公告)号：US20230065471A1

公开(公告)日：2023-03-02

申请号：US17822592

申请日：2022-08-26

Applicant: TOTO LTD.

Inventor： Hideki TANIMOTO ,  Koki SHINOHARA ,  Kenji HATAMA ,  Seika TATSUOKA

IPC: E03D1/34 ,  E03D1/30

Abstract: The present invention provides a flush water tank device (4), including: a flush water tank (10); a discharge valve (12) that causes the lower spout port to eject the flush water by switching between discharge and stopping of the flush water; a water pressure driving mechanism (14) that drives the discharge valve with a water supply pressure; a first on-off valve (19) that switches between water ejection and stopping of the flush water; a second on-off valve (18) that switches between water supply and stopping of the flush water to the water pressure driving mechanism; and a delay valve opening mechanism (21) that causes the second on-off valve to open with a delay of predetermined time after water ejection from the upper spout port is started, using a part of the flush water introduced via the first on-off valve, to supply the flush water to the water pressure driving mechanism.