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公开(公告)号：US11365535B2
公开(公告)日：2022-06-21
申请号：US17212279
申请日：2021-03-25
申请人： TOTO LTD.
IPC分类号： E03D5/02
摘要： A flush water tank apparatus enabling accurately setting an amount of flush water to be discharged while opening a discharge valve via a discharge valve hydraulic drive unit and a flush toilet apparatus including the flush water tank are provided. A flush water tank apparatus includes a first float device; a second float device that prevents from descent of the discharge valve according to the water level so as to discharge a second amount of flush water; and an adjustment mechanism configured so that when the second amount of flush water is selected by the flush water amount selection portion the clutch mechanism is disconnected at a pull-up height of the discharge valve such that the discharge valve descended by the disconnection of the clutch mechanism is held by the second float device in a holding state.
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2.发明授权公开(公告)号：US10934992B2
公开(公告)日：2021-03-02
申请号：US16782528
申请日：2020-02-05
申请人： TOTO LTD.
摘要： The hydraulic generator includes a first structure; a second structure, such that a water passageway from the inflow port to the outflow port is formed by the first structure and the second structure in a state that the second structure is attached to the first structure; a water turbine; and an electrical generator. The second structure is removable from the first structure, and includes a fixing portion fixing the fixed shaft.
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公开(公告)号：US12037779B2
公开(公告)日：2024-07-16
申请号：US17464063
申请日：2021-09-01
申请人： TOTO LTD.
发明人： Akihiro Shimuta , Hidekazu Kitaura , Nobuhiro Hayashi , Masahiro Kuroishi , Hiroshi Hashimoto , Koki Shinohara , Kenji Hatama , Takashi Yoshioka
摘要： A flush water tank apparatus has a reservoir tank, a discharge valve, a discharge valve hydraulic drive portion configured to drive the discharge valve, and a discharge/vacuum break valve device configured to supply the water supplied from the upstream side to the discharge valve hydraulic drive portion on a downstream side. The discharge valve hydraulic drive portion includes a cylinder, and a piston configured to be moved by a pressure of the water flowing into the cylinder to move the discharge valve. The discharge/vacuum break valve device includes a valve body that operates to discharge the water flowing backward from the discharge valve hydraulic drive portion while opening the upstream side to an atmosphere when the supply of the water from the upstream side is stopped.
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公开(公告)号：US11371230B2
公开(公告)日：2022-06-28
申请号：US17212661
申请日：2021-03-25
申请人： TOTO LTD.
IPC分类号： E03D5/02
摘要： The present invention is a flush water tank apparatus (4) and includes: a storage tank (10) on which a drain port (10a) is formed, a discharge valve (12) opening/closing the drain port; a discharge valve hydraulic drive unit (14) driving the discharge valve using water supply pressure; a clutch mechanism (30) coupling the discharge valve and the discharge valve hydraulic drive unit to pull up the discharge valve; flush water amount selection device capable of selecting between a first and a second amount of flush water; a timing control mechanism controlling a timing of the drain port being blocked; and a control jet unit (20) jetting, when the second amount is selected, flush water to a water receiving surface provided on the timing control mechanism so that a timing of the drain port being blocked is earlier than a case of the first amount of flush water.
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公开(公告)号：US11421410B2
公开(公告)日：2022-08-23
申请号：US17343135
申请日：2021-06-09
申请人： TOTO LTD.
发明人： Hidekazu Kitaura , Nobuhiro Hayashi , Akihiro Shimuta , Masahiro Kuroishi , Hiroshi Hashimoto , Koki Shinohara , Kenji Hatama
摘要： There are provided a flush water tank apparatus capable of reducing a pressure of flush water in a pressure chamber easily, and a flush toilet apparatus provided with the same. A discharge valve hydraulic drive portion of a flush water tank apparatus includes a cylinder in which supplied the flush water flows, a piston that is slidably disposed in the cylinder, partitions inside of the cylinder into a pressure chamber and a back pressure chamber, and further is moved from a first position to a second position by a pressure of the flush water that has flowed into the pressure chamber, an outflow portion from which the flush water in the cylinder flows out, and a communication mechanism that establishes communication between the pressure chamber and the outflow portion after the clutch mechanism is disengaged.
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公开(公告)号：US10287764B2
公开(公告)日：2019-05-14
申请号：US15698948
申请日：2017-09-08
申请人： TOTO LTD.
摘要： Problem:Provided is a flush toilet capable of increasing the volume of a waste conveyance flow, thereby improving a waste conveyance capability.Solution:The flush toilet includes: a toilet main unit (2) comprising a discharge conduit (16) communicated with the discharge trap pipe. The discharge conduit includes a flow dividing section (26) provided on a downstream side of an upstream discharge conduit section, and a delaying flow passage (28) branched from the flow dividing section. An inward region of the skirt portion includes: a central region (D) and a lateral region (E). The delaying flow passage (28) forms a passage in the lateral region (E) and merges leading flush water having flowed into the delaying flow passage from the flow dividing section (26) with a flush water flow reaching the flow dividing section at a timing after the inflow of the flush water to the delaying flow passage.
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公开(公告)号：US11505933B2
公开(公告)日：2022-11-22
申请号：US16984623
申请日：2020-08-04
申请人： TOTO LTD.
摘要： A flush water tank apparatus capable of opening and closing a discharge valve without the use of an external power source. A flush water tank apparatus includes a reservoir tank having a discharge opening; a discharge valve which opens and closes to supply and shut off the supply of flush water to the flush toilet; a discharge valve hydraulic drive portion, which uses the supply pressure of supplied municipal water to drive the discharge valve; an electric generator for generating electrical power using the flow of supplied municipal water; an electromagnetic valve operated by electrical power generated by the generator; and a water supply control device for controlling the supply of water to the discharge valve hydraulic drive portion based on the operation of the electromagnetic valve, and for controlling the supply of water to the reservoir tank.
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公开(公告)号：US11421409B2
公开(公告)日：2022-08-23
申请号：US17343092
申请日：2021-06-09
申请人： TOTO LTD.
发明人： Nobuhiro Hayashi , Hidekazu Kitaura , Akihiro Shimuta , Masahiro Kuroishi , Hiroshi Hashimoto , Koki Shinohara , Kenji Hatama , Takashi Yoshioka
摘要： Provided are a flush water tank apparatus capable of restraining instability of an operation of a piston and restraining fluctuations in a water pressure of flush water discharged from a first discharge part provided separately from an inlet, and a flush toilet apparatus including the flush water tank apparatus. A discharge valve hydraulic drive portion of a flush water tank apparatus of the present invention includes a cylinder, a piston, and a rod extending from the piston through a through-hole portion formed in the cylinder, the cylinder including an inlet into which flush water flows, a first discharge part that is provided separately from the inlet to drain the flush water, and a second discharge part that is provided separately from the first discharge part and is formed between the rod and the through-hole portion and between the piston and the through-hole portion.
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公开(公告)号：US11371229B2
公开(公告)日：2022-06-28
申请号：US17212401
申请日：2021-03-25
申请人： TOTO LTD.
IPC分类号： E03D5/02
摘要： There are provided a flush water tank apparatus capable of accurately setting the amount of flush water to be discharged while opening a discharge valve by a discharge valve hydraulic drive unit. A flush water tank apparatus includes a valve controller, where, in a case where a first amount of flush water is selected, the valve controller causes the timing control mechanism to be engaged with the discharge valve and causes the timing control mechanism to operate such that engagement is released after a lapse of a first period of time, and in a case where a second amount of flush water is selected, the valve controller causes the timing control mechanism to be engaged with the discharge valve and causes the timing control mechanism to operate such that engagement is released after lapse of a second period of time shorter than the first period of time.
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公开(公告)号：US11332917B2
公开(公告)日：2022-05-17
申请号：US17212872
申请日：2021-03-25
申请人： TOTO LTD.
摘要： The flush water tank apparatus of the present invention includes: a clutch mechanism 30 coupling the discharge valve 12 and the discharge valve hydraulic drive unit 14 to pull up the discharge valve, and being disconnected at a predetermined timing to cause the discharge valve to descend; flush water amount selection device capable of selecting from a first and a second amounts of flush water; a float device 26 including a float and a holding mechanism switchable between a holding and a non-holding states in conjunction with movement of the float; and a timing control mechanism controlling a timing of a drain port 10a being blocked; and, when the second amount is selected, causes the second amount of flush water to be discharged by switching the holding mechanism to the non-holding state before a water level in a storage tank drops to a predetermined water level.
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