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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
Applicant: TOTO LTD.
Inventor： Hidekazu Kitaura , Nobuhiro Hayashi , Akihiro Shimuta , Masahiro Kuroishi
IPC: E03D5/02
Abstract: 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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公开(公告)号：US09670658B2
公开(公告)日：2017-06-06
申请号：US15040284
申请日：2016-02-10
Applicant: TOTO LTD.
Inventor： Ryoko Ishimaru , Hidekazu Kitaura , Takahiro Maruyama
CPC classification number: E03D5/01 , E03D1/36 , E03D2201/40
Abstract: A switching mechanism is configured to switch an advancing direction of water injected from a nozzle by moving between a first position and a second position. The switching mechanism is held at the second position by a force received from the water injected by the nozzle during the tank water feeding process. A refill mechanism has a refill pipe for causing the water injected from the nozzle during the tank water feeding process and whose advancing direction is switched by the switching mechanism to flow in through an inflow port on one end side. The refill pipe is configured to lead the water having flowed in through the inflow port to a toilet stool body without flowing through a suction port of a throat pipe.
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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
Applicant: TOTO LTD.
Inventor： Nobuhiro Hayashi , Hidekazu Kitaura , Akihiro Shimuta , Masahiro Kuroishi
IPC: E03D5/02
Abstract: 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
Applicant: TOTO LTD.
Inventor： Hidekazu Kitaura , Nobuhiro Hayashi , Akihiro Shimuta , Masahiro Kuroishi
Abstract: 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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5.发明授权公开(公告)号：US11186975B2
公开(公告)日：2021-11-30
申请号：US16984495
申请日：2020-08-04
Applicant: TOTO LTD.
Inventor： Hidekazu Kitaura , Nobuhiro Hayashi , Akihiro Shimuta , Masahiro Kuroishi
Abstract: A flush water tank apparatus supplying flush water to a flush toilet by using electrical power generated in the flush water tank apparatus, and a flush toilet apparatus including the flush water tank apparatus are provided. The flush water tank apparatus includes a discharge valve hydraulic drive portion, a discharge control device, an electromagnetic valve, a branching portion causing supplied tap water to flow into the discharge control device and into the water supply valve respectively, and a generator generating electrical power to operate the electromagnetic valve. The generator is provided on a water conduit in a downstream side of the branching portion, and on the water conduit in an upstream side of the water supply valve or in a downstream side of the water supply valve.
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Patent Agency Ranking
公开(公告)号：US10287767B2
公开(公告)日：2019-05-14
申请号：US15698931
申请日：2017-09-08
Applicant: TOTO LTD.
Inventor： Nobuhiro Hayashi , Hidekazu Kitaura , Takahiro Nakashima , Haruka Saito , Isami Sakaba
Abstract: Provided is a flush toilet capable of increasing the volume of a waste conveyance flow for washing down waste thereby improving a waste conveyance capability. The flush toilet includes: a discharge conduit (16) communicated with the discharge trap pipe. The discharge conduit includes: a flow dividing section (26) and a delaying flow passage (28) branched from the flow dividing section. The flow dividing section has a guide portion (32) configured to guide relatively low-speed flush water along the guide portion to the delaying flow passage. The delaying flow passage (28) is configured such that flush water having flowed into the delaying flow passage along the guide portion (32) is enabled to merge 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：US11421410B2
公开(公告)日：2022-08-23
申请号：US17343135
申请日：2021-06-09
Applicant: TOTO LTD.
Inventor： Hidekazu Kitaura , Nobuhiro Hayashi , Akihiro Shimuta , Masahiro Kuroishi , Hiroshi Hashimoto , Koki Shinohara , Kenji Hatama
Abstract: 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
Applicant: TOTO LTD.
Inventor： Takahiro Nakashima , Nobuhiro Hayashi , Hidekazu Kitaura , Haruka Saito , Isami Sakaba
Abstract: 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：US09476193B2
公开(公告)日：2016-10-25
申请号：US14228072
申请日：2014-03-27
Applicant: TOTO LTD.
Inventor： Hidekazu Kitaura , Ryoko Ishimaru , Tomohiro Iwabata
CPC classification number: E03D5/01 , E03D11/08 , E03D2201/40
Abstract: This flush toilet apparatus includes a traveling-direction switching mechanism switching a mode between a toilet washing mode and a tank storage mode. This traveling-direction switching mechanism includes: a shield portion directing jet water to an outside of a throat pipe at a time of the tank storage mode; a moving mechanism moving the shield portion from a position at a time of the toilet washing mode in a first direction to a position at the time of the tank storage mode; and a guide surface switching a traveling direction of the jet water so that after the traveling direction is switched, a flow rate of the jet water is higher in a second direction opposite to the first direction than in the first direction.
Abstract translation: 这种抽水马桶装置包括一个在马桶清洗模式和储罐储存模式之间切换模式的行进方向切换机构。 该行进方向切换机构包括：在油箱储存模式时将喷射水引导到喉管外部的遮蔽部; 移动机构，其将所述遮蔽部从所述马桶洗涤模式时的位置向第一方向移动到所述储存箱模式时的位置; 以及引导表面切换喷射水的行进方向，使得在行进方向被切换之后，喷射水的流量在与第一方向相反的第二方向上高于在第一方向上的流量。
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公开(公告)号：US09021622B2
公开(公告)日：2015-05-05
申请号：US14052222
申请日：2013-10-11
Applicant: Toto Ltd.
Inventor： Hidekazu Kitaura , Ryoko Ishimaru , Tomohiro Iwabata , Yoshiki Ota , Takashi Yoshioka
CPC classification number: E03D11/08 , E03D1/085 , E03D2201/40
Abstract: There is provided a flush toilet device capable of being configured in a compact size and supplying a sufficient flow amount of water to a toilet to reliably flush and discharge waste. According to the flush toilet device, a straight pipe portion of a throat which is arranged inside a tank is arranged in a state where a center axis thereof inclines with respect to a front-back direction of the tank when viewed from an upper side.
Abstract translation: 提供了一种冲水马桶装置，其能够被构造成紧凑的尺寸并且向马桶提供足够的流量的水以可靠地冲洗和排出废物。 根据所述冲水马桶装置，当从上侧观察时，布置在罐内的喉部的直管部分布置成相对于所述箱的前后方向倾斜的中心轴线的状态。
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