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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：US10480167B2
公开(公告)日：2019-11-19
申请号：US15987754
申请日：2018-05-23
Applicant: TOTO LTD.
Inventor： Hideki Tanimoto , Kenji Hatama
IPC: E03D1/32
Abstract: A float-position adjusting member is circumferentially rotatable around an axis thereof so that a relative position between an arm and a float is adjustable. A small-tank-position adjusting member is also circumferentially rotatable around an axis thereof so that a vertical position to which a small tank is supported is adjustable. These adjusting members are coaxially arranged. When the float-position adjusting member is rotated in one direction, a first contact part of the float-position adjusting member comes in contact with a first contact part of the small-tank-position adjusting member for their corotation. When the small-tank-position adjusting member is rotated in the other direction, second contact parts of the adjusting members come in contact with each other for their corotation. There is no corotation between the contact state of the first contact parts and the contact state of the second contact parts, whose rotational angle is 10 degrees or more.
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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
Applicant: TOTO LTD.
Inventor： Akihiro Shimuta , Hidekazu Kitaura , Nobuhiro Hayashi , Masahiro Kuroishi , Hiroshi Hashimoto , Koki Shinohara , Kenji Hatama , Takashi Yoshioka
Abstract: 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：US11927004B2
公开(公告)日：2024-03-12
申请号：US17822621
申请日：2022-08-26
Applicant: TOTO LTD.
Inventor： Hideki Tanimoto , Koki Shinohara , Kenji Hatama , Makoto Abe , Seika Tatsuoka
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.
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公开(公告)号：US12258744B2
公开(公告)日：2025-03-25
申请号：US18121770
申请日：2023-03-15
Applicant: TOTO LTD.
Inventor： Yuta Kondo , Koichiro Hiwa , Yuki Shimokawa , Kenji Hatama , Haruki Matsuda
Abstract: The present invention is a flush water tank device including a flush water tank main body, a water supply valve, and a discharge valve, in which during a flush of the flush toilet, the discharge valve is opened until a water level in the flush water tank main body is lowered from a predetermined full water level to a predetermined dead water level, a lowering speed of the water level in the flush water tank main body changes at a predetermined inflection water level between the full water level and the dead water level, and the lowering speed of the water level between the inflection water level and the dead water level is faster than the lowering speed of the water level between the full water level and the inflection water level.
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Patent Agency Ranking
公开(公告)号：US12031311B2
公开(公告)日：2024-07-09
申请号：US17822592
申请日：2022-08-26
Applicant: TOTO LTD.
Inventor： Hideki Tanimoto , Koki Shinohara , Kenji Hatama , Seika Tatsuoka
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.
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公开(公告)号：US10184237B2
公开(公告)日：2019-01-22
申请号：US15374441
申请日：2016-12-09
Applicant: TOTO LTD.
Inventor： Hideki Tanimoto , Kenji Hatama
Abstract: In a discharge valve device, a protuberance penetrates a vertical channel with a raised portion engaging a channel. Thus when an attempt is made to rotate a cylindrical body in the circumferential direction with a raised portion engaging a channel, contact between the protuberance right side surface and the vertical channel restricts rotational movement of the cylindrical body in the circumferential direction.
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公开(公告)号：US10119260B2
公开(公告)日：2018-11-06
申请号：US14812107
申请日：2015-07-29
Applicant: TOTO LTD.
Inventor： Koki Shinohara , Hideki Tanimoto , Yukinori Kubozono , Kenji Hatama , Hisashi Koga
Abstract: A discharge valve apparatus attached to a reservoir tank in a reservoir tank apparatus for storing flush water. The discharge valve apparatus includes a valve body, attached to the top of a discharge opening provided in the bottom surface of a reservoir tank, for opening and closing the discharge opening by up and down movement thereof, a float, attached to the valve body, which drops in tandem with the drop in water level inside the flush water tank; and a variable drop start timing mechanism to make a drop start timing of the valve body variable.
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公开(公告)号：US09783971B2
公开(公告)日：2017-10-10
申请号：US14817981
申请日：2015-08-04
Applicant: TOTO LTD.
Inventor： Koki Shinohara , Atsuko Yamasaki , Yukinori Kubozono , Hideki Tanimoto , Kenji Hatama
CPC classification number: E03D1/34 , E03C2001/1206
Abstract: A discharge valve apparatus of the present invention includes: a discharge portion main body member attached to discharge opening, forming the inside of discharge flow path for guiding flush water from an inflow opening formed at one end thereof to an outflow opening formed at the other end thereof; a valve body for opening and closing the inflow opening of the discharge portion main body member; and an affixing portion, formed to project into the discharge flow path of a discharge portion main body member, for affixing the discharge portion main body member to a reservoir tank; wherein the inside surface of side wall portion in the discharge portion main body member at the same height as this affixing portion forms a curved portion, which curves outward so as to expand the cross-sectional area of the flow path.
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公开(公告)号：US09340962B2
公开(公告)日：2016-05-17
申请号：US14221073
申请日：2014-03-20
Applicant: TOTO LTD.
Inventor： Hideki Tanimoto , Koki Shinohara , Kenji Hatama
IPC: E03D5/094
CPC classification number: E03D5/094
Abstract: An operating device of the present invention includes: an operating member configured to be rotationally moved according to a rotational operation performed by a user; a rotary shaft; and a drive unit disposed above a level of flush water within a flush water tank, and configured to displace a coupling member according to a rotational movement of the rotary shaft, the coupling member coupling the drive unit and a water discharge valve together, and capable of opening and closing the water discharge valve by means of its own displacement, wherein the drive unit comprises a rotation mechanism configured to be rotated at a radius of rotation greater than that of the rotary shaft, the drive unit being operable to roll up the coupling member along its own rotational direction.
Abstract translation: 本发明的操作装置包括：操作构件，被构造成根据用户执行的旋转操作旋转移动; 旋转轴; 以及驱动单元，其设置在冲洗水箱内的冲洗水平面之上，并且构造成根据所述旋转轴的旋转运动来移动联接构件，所述联接构件将所述驱动单元和排水阀联接在一起，并且能够 通过其自身的位移来打开和关闭排水阀，其中所述驱动单元包括旋转机构，所述旋转机构构造成以大于所述旋转轴的旋转半径旋转，所述驱动单元可操作以卷绕所述联接器 会员沿其自身的方向。
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