JP5492068B2 - Washing water discharge device - Google Patents

Washing water discharge device Download PDF

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JP5492068B2
JP5492068B2 JP2010284011A JP2010284011A JP5492068B2 JP 5492068 B2 JP5492068 B2 JP 5492068B2 JP 2010284011 A JP2010284011 A JP 2010284011A JP 2010284011 A JP2010284011 A JP 2010284011A JP 5492068 B2 JP5492068 B2 JP 5492068B2
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cleaning water
valve
flow path
washing water
path
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JP2012132177A (en
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博 松永
隆宏 中村
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

本発明は、液体薬剤が混入された洗浄水を吐出するための洗浄水吐出装置に関するものである。   The present invention relates to a cleaning water discharge device for discharging cleaning water mixed with a liquid medicine.

便器装置においては、ボウル部内に洗浄水を吐出するための洗浄水吐出装置が備えられている。特許文献１には、この洗浄水吐出装置の洗浄水流路中に液体薬剤が合流し、液体薬剤が混入された状態の洗浄水がボウル部内に吐出される構成のものが開示されている。液体薬剤は薬剤供給経路を通じて混入され、この薬剤供給経路中に配してあるゴムのような弾性部材からなる開閉弁によって混入が制御される構成である。しかし上記従来の洗浄水吐出装置にあっては、開閉弁として電磁弁を備えてこれの開閉動作を適宜制御する構成が必要となり、低コスト化を図ることが困難であるという問題がある。   The toilet device is provided with a washing water discharge device for discharging washing water into the bowl portion. Patent Document 1 discloses a configuration in which a liquid medicine merges into a washing water flow path of the washing water discharge device, and washing water in a state where the liquid medicine is mixed is discharged into a bowl portion. The liquid medicine is mixed through the medicine supply path, and the mixing is controlled by an on-off valve made of an elastic member such as rubber disposed in the medicine supply path. However, the conventional cleaning water discharge device has a problem that it is difficult to reduce the cost because it requires an electromagnetic valve as an opening / closing valve and appropriately controls the opening / closing operation thereof.

そこでまず本発明者は、ポンプ圧力により弾性変形を生じて開口し、ポンプが停止すれば復元力により閉口するようなスリット状貫通孔を有する開閉弁を発想した。これによれば電磁弁が必要でなく、また弁の開閉が直接制御される必要もないので低コスト化が図られる。   Therefore, the present inventor first conceived an on-off valve having a slit-like through hole that opens due to elastic deformation caused by the pump pressure and closes by a restoring force when the pump stops. According to this, a solenoid valve is not required, and it is not necessary to directly control the opening and closing of the valve, so that the cost can be reduced.

特開平５−２１４７５７号公報JP-A-5-214757

しかし、上記洗浄水吐出装置にあっては、ボウル部の洗浄が停止している時、洗浄水流路中に滞留している洗浄水に開閉弁が接触し、洗浄水中に含まれる塩素イオンにより開閉弁が劣化し、閉止性能が低下してしまう惧れがあった。   However, in the cleaning water discharge device, when the cleaning of the bowl portion is stopped, the on-off valve comes into contact with the cleaning water staying in the cleaning water flow path, and is opened and closed by chlorine ions contained in the cleaning water. There was a fear that the valve deteriorated and the closing performance deteriorated.

本発明は上記問題点に鑑みて発明したものであって、ボウル部の洗浄が停止している時、洗浄水流路中に滞留している洗浄水に開閉弁が接触しにくく、洗浄水中に含まれる塩素イオンにより開閉弁が劣化しにくい洗浄水吐出装置を提供することを課題とするものである。   The present invention was invented in view of the above problems, and when the cleaning of the bowl portion is stopped, the on-off valve is difficult to contact the cleaning water staying in the cleaning water flow path, and is included in the cleaning water. It is an object of the present invention to provide a cleaning water discharge device in which an on-off valve is hardly deteriorated by chlorine ions.

上記課題を解決するために本発明は、供給される洗浄水を吐出口から外部に吐出する洗浄水流路と、前記洗浄水流路に形成されたベンチュリ管状の絞り流路部に合流する薬剤供給経路と、前記洗浄水流路を流れる洗浄水に前記薬剤供給経路から液体薬剤を供給するための圧力を付与する薬剤供給用ポンプと、前記薬剤供給経路中に配される開閉弁とを具備し、前記開閉弁は、前記薬剤供給用ポンプの運転により開口し且つ運転停止により閉口するスリット状貫通孔を有する弾性部材であり、前記絞り流路部の内壁の上面の前記薬剤供給経路と合流する部分に上方に凹没し流れ方向に開口する拡径溝部が形成され、前記スリット状貫通孔が前記拡径溝部の奥面に位置し且つ前記洗浄水の流れに略平行となるように配し、前記絞り流路部に内部を大気に連通させて拡径溝部に空気を供給する連通口が形成されることに特徴を有する。   In order to solve the above-described problems, the present invention provides a cleaning water flow path for discharging supplied cleaning water to the outside from a discharge port, and a drug supply path that joins a venturi-shaped throttle flow path formed in the cleaning water flow path. And a medicine supply pump for applying a pressure for supplying the liquid medicine from the medicine supply path to the washing water flowing through the washing water flow path, and an on-off valve arranged in the medicine supply path, The on-off valve is an elastic member having a slit-like through-hole that opens when the medicine supply pump is operated and closes when the medicine is stopped, and is connected to the medicine supply path on the upper surface of the inner wall of the throttle channel section. An enlarged groove portion that is recessed upward and opens in the flow direction is formed, and the slit-like through hole is located at the back surface of the enlarged groove portion and is arranged so as to be substantially parallel to the flow of the cleaning water, Inside the throttle channel In diameter groove portions to communicate with the gas characterized in that the communication port for supplying air is formed.

また、前記拡径溝部の流れ方向に直交する幅が５ｍｍ以上であることが好ましい。   Moreover, it is preferable that the width | variety orthogonal to the flow direction of the said diameter expansion groove part is 5 mm or more.

また、前記拡径溝部の前記絞り流路部周囲の内壁からの深さが２〜５ｍｍであることが好ましい。   Moreover, it is preferable that the depth from the inner wall around the said throttle flow path part of the said enlarged diameter groove part is 2-5 mm.

また、前記洗浄水流路の前記吐出口近傍の下端部に、下方に傾斜する傾斜面または下方に凹没する段差部が形成されることが好ましい。   In addition, it is preferable that an inclined surface that is inclined downward or a stepped portion that is recessed downward is formed at a lower end portion in the vicinity of the discharge port of the washing water channel.

本発明にあっては、ボウル部の洗浄が停止している時、洗浄水流路中に滞留している洗浄水に開閉弁が接触しにくくなり、洗浄水中に含まれる塩素イオンにより開閉弁が劣化しにくくなる。   In the present invention, when the cleaning of the bowl portion is stopped, the on-off valve is less likely to come into contact with the washing water staying in the washing water flow path, and the on-off valve deteriorates due to chlorine ions contained in the washing water. It becomes difficult to do.

本発明の一実施形態の洗浄水吐出装置の要部（エジェクタ管）の流れ方向に垂直な断面図である。It is sectional drawing perpendicular | vertical to the flow direction of the principal part (ejector pipe | tube) of the washing water discharge apparatus of one Embodiment of this invention. 同上の要部（エジェクタ管）の流れ方向に沿った断面図である。It is sectional drawing along the flow direction of the principal part (ejector pipe | tube) same as the above. 同上の洗浄水吐出装置を備えた便器装置を示す概略構成図である。It is a schematic block diagram which shows the toilet device provided with the washing water discharge apparatus same as the above. 洗浄水吐出装置を示し、（ａ）は側面図、（ｂ）は平面図、（ｃ）は正面図である。The washing water discharging apparatus is shown, (a) is a side view, (b) is a plan view, and (c) is a front view. 図４（ａ）のＢ−Ｂ断面図である。It is BB sectional drawing of Fig.4 (a). エジェクタ管の斜視図である。It is a perspective view of an ejector pipe. エジェクタ管の平面図である。It is a top view of an ejector pipe | tube. 開閉弁の斜視図である。It is a perspective view of an on-off valve. 同上の開閉弁を示し、（ａ）は平面図、（ｂ）は側面図、（ｃ）は正面図である。The on-off valve is shown, (a) is a plan view, (b) is a side view, and (c) is a front view. 同上の開閉弁の閉弁時を示す断面図である。It is sectional drawing which shows the time of valve closing of the on-off valve same as the above. 同上の開閉弁の開弁時を示す断面図である。It is sectional drawing which shows the time of valve opening of the on-off valve same as the above.

以下、本発明を添付図面に示す実施形態に基づいて説明する。図３には、本発明の実施形態における一例の洗浄水吐出装置６を備えた便器装置１を示してある。本例の便器装置１は、合成樹脂製の便器２で主体が構成されている。なお図中の符合３は便器２に回動自在に設けた便座であり、符合４は便器２に回動自在に設けた便蓋である。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. FIG. 3 shows a toilet device 1 including an example of the washing water discharge device 6 according to the embodiment of the present invention. The toilet device 1 of this example is composed mainly of a toilet bowl 2 made of synthetic resin. In the figure, reference numeral 3 is a toilet seat provided on the toilet 2 so as to be rotatable, and reference numeral 4 is a toilet lid provided on the toilet 2 so as to be rotatable.

便器２のボウル部５の下部には後方に向けて排水筒部７が突設されており、該排水筒部７からトラップ筒８を介してボウル部５内の溜水が排水されるようになっている。本例のトラップ筒８はターントラップ方式のものである。モータ（図示せず）によりトラップ筒８が回動して、図３に実線で示すようにトラップ筒８が上向きＵ字状のトラップ構造となる状態と、破線で示すように略逆Ｌ字状となってトラップ構造が解除される状態とが、選択できるようになっている。通常はトラップ筒８が上向きＵ字状のトラップ構造を保持し、ボウル部５内の下部、排水筒部７、トラップ筒８内に水が溜まった状態となる。水が溜たまった状態で大便や小便を行い、大便や小便が終わると、洗浄水吐出装置６の吐出口９からボウル部５内に向けて洗浄水を流すと共に、トラップ筒８を回動してトラップ構造が解除されることで、汚物と共に汚水が排水されるようになっている。   A drain tube portion 7 is provided at the lower portion of the bowl portion 5 of the toilet bowl 2 so as to protrude rearward, so that the accumulated water in the bowl portion 5 is drained from the drain tube portion 7 via the trap tube 8. It has become. The trap cylinder 8 of this example is of a turn trap type. The trap cylinder 8 is rotated by a motor (not shown) so that the trap cylinder 8 has an upward U-shaped trap structure as shown by a solid line in FIG. 3, and a substantially inverted L shape as shown by a broken line. Thus, the state in which the trap structure is released can be selected. Normally, the trap cylinder 8 holds an upward U-shaped trap structure, and water is accumulated in the lower part of the bowl part 5, the drain cylinder part 7, and the trap cylinder 8. When stool or urine is carried out in a state where water has accumulated, when the stool or urine is finished, flush water flows from the discharge port 9 of the flush water discharge device 6 into the bowl portion 5 and the trap cylinder 8 is rotated. By releasing the trap structure, sewage is drained together with filth.

便器２の後部に内装される本例の洗浄水吐出装置６は図１乃至図７に示されるようなもので、吐出口９から洗浄水、又は洗浄水に液体薬剤１０が混入されて得た薬剤入り洗浄水のいずれか一方を、選択的にボウル部５の内面に吐出して洗浄するものである。   The washing water discharge device 6 of this example installed in the rear part of the toilet bowl 2 is as shown in FIG. 1 to FIG. 7, and is obtained by mixing the liquid medicine 10 into the washing water or the washing water from the discharge port 9. Either one of the cleaning water containing the medicine is selectively discharged onto the inner surface of the bowl portion 5 for cleaning.

図３に概略的に示すように洗浄水吐出装置６は、洗浄水が供給される洗浄水流路１１と、洗浄水流路１１に合流する薬剤供給経路１２を備えている。薬剤供給経路１２には、該薬剤供給経路１２から洗浄水流路１１を流れる洗浄水に液体薬剤１０を供給するための圧力を付与する薬剤供給用ポンプ１３を設けている。   As schematically shown in FIG. 3, the cleaning water discharge device 6 includes a cleaning water flow path 11 to which cleaning water is supplied, and a chemical supply path 12 that joins the cleaning water flow path 11. The drug supply path 12 is provided with a drug supply pump 13 that applies a pressure for supplying the liquid drug 10 to the wash water flowing through the wash water flow path 11 from the drug supply path 12.

洗浄水流路１１は、水源（図示せず）に接続されて水道水からなる洗浄水が供給される流路である。洗浄水流路１１に洗浄水を供給する手段としては、水道圧を利用する。洗浄水流路１１の下流側端部には、ボウル部５の上端部後方に配設されて該ボウル部５内に臨む吐出ノズル１４（図４等参照）が設けられており、該吐出ノズル１４の先端開口で前述の吐出口９が構成されている。吐出口９はボウル部５の側端部に臨んでおり、該吐出口９から吐出された洗浄水又は薬剤入り洗浄水はボウル部５の内周面に沿って旋回する。洗浄水流路１１において薬剤供給経路１２との合流部１５よりも上流側には電磁弁１６が設けられており、電磁弁１６が開閉することで、洗浄水流路１１に供給された洗浄水が吐出口９から吐出するか否かが切替可能となっている。本実施形態では、洗浄水流路１１の吐出口９近傍の下端部に、下方に傾斜する傾斜面または下方に凹没する段差部９１が形成されるものである。   The cleaning water channel 11 is a channel that is connected to a water source (not shown) and supplied with cleaning water made of tap water. As a means for supplying cleaning water to the cleaning water flow path 11, tap water pressure is used. A discharge nozzle 14 (see FIG. 4 and the like) that is disposed behind the upper end of the bowl portion 5 and faces the bowl portion 5 is provided at the downstream end of the cleaning water flow path 11. The above-described discharge port 9 is constituted by the tip opening. The discharge port 9 faces the side end of the bowl portion 5, and the cleaning water or the chemical-containing cleaning water discharged from the discharge port 9 swirls along the inner peripheral surface of the bowl portion 5. An electromagnetic valve 16 is provided upstream of the junction 15 with the drug supply path 12 in the washing water channel 11, and the washing water supplied to the washing water channel 11 is discharged by opening and closing the electromagnetic valve 16. Whether or not to discharge from the outlet 9 can be switched. In the present embodiment, an inclined surface that is inclined downward or a stepped portion 91 that is recessed downward is formed at the lower end of the cleaning water flow path 11 near the discharge port 9.

洗浄水流路１１において合流部１５よりも上流側であり且つ電磁弁１６よりも下流側である部分には、洗浄水流路１１を流れる洗浄水に空気を混入して、気泡入り洗浄水を生成する空気混入部１７を設けている。空気混入部１７は、一端を大気に開放した空気供給路１８の他端が洗浄水流路１１の一部に接続されることで構成され、洗浄水流路１１を流れる洗浄水のエジェクタ効果によって空気供給路１８から洗浄水流路１１に空気が供給され、これにより気泡入り洗浄水が得られる仕組みである。   In the portion of the cleaning water channel 11 that is upstream of the junction 15 and downstream of the solenoid valve 16, air is mixed into the cleaning water flowing through the cleaning water channel 11 to generate cleaning water containing bubbles. An aeration unit 17 is provided. The aeration unit 17 is configured by connecting the other end of the air supply path 18 whose one end is open to the atmosphere to a part of the wash water flow path 11, and supplies air by the ejector effect of the wash water flowing through the wash water flow path 11. This is a mechanism in which air is supplied from the passage 18 to the washing water passage 11 to obtain bubbled washing water.

図２等に示すように、洗浄水流路１１において空気供給路１８が接続される部分は、上流側のノズル管１９と下流側のエジェクタ管２０とで構成されている。ノズル管１９は、下流側に向かって流路断面積を徐々に小さくする先細形状に形成されており、このノズル管１９の先端部が、エジェクタ管２０の一端開口から該エジェクタ管２０内に挿入されている。上記挿入によりノズル管１９の先端部外側に位置することとなるエジェクタ管２０の内周面は、ノズル管１９の先端部外周面よりも大径に形成されている。これによりノズル管１９の先端部近傍に、洗浄水の流れにより大きな負圧が発生する負圧発生部２１が形成されている。前述の空気供給路１８の一端は洗浄水流路１１の負圧発生部２１に接続されており、負圧発生部２１で発生する負圧によって、洗浄水流路１１を流れる洗浄水に確実に且つ充分な量の空気が混入されるようになっている。   As shown in FIG. 2 and the like, the portion to which the air supply path 18 is connected in the washing water flow path 11 is composed of an upstream nozzle pipe 19 and a downstream ejector pipe 20. The nozzle tube 19 is formed in a tapered shape that gradually decreases the cross-sectional area of the flow channel toward the downstream side, and the tip of the nozzle tube 19 is inserted into the ejector tube 20 from one end opening of the ejector tube 20. Has been. The inner peripheral surface of the ejector tube 20 that is positioned outside the distal end portion of the nozzle tube 19 by the insertion is formed to have a larger diameter than the outer peripheral surface of the distal end portion of the nozzle tube 19. As a result, a negative pressure generating portion 21 that generates a large negative pressure due to the flow of cleaning water is formed near the tip of the nozzle tube 19. One end of the air supply path 18 is connected to the negative pressure generating section 21 of the cleaning water flow path 11, and the negative pressure generated in the negative pressure generating section 21 reliably and sufficiently supplies the cleaning water flowing through the cleaning water flow path 11. A large amount of air is mixed in.

エジェクタ管２０における負圧発生部２１よりも下流側の部分には、ベンチュリ管状の絞り流路部２２が形成されている。該絞り流路部２２は、上流側及び下流側の流路断面積の大きな大径部２３と、両大径部２３間の小径部２４とで構成されており、上流側から流れてきた気泡入り洗浄水を通過時に圧力変化させ、これにより洗浄水に含まれる気泡が剪断して細分化される。また洗浄水流路１１の薬剤供給経路１２との合流部１５よりも下流側の箇所には、洗浄水に含まれる気泡を更に細分化する気泡細分化手段として、気泡を剪断するメッシュで構成した整流板２５が設けられている。なお、エジェクタ管２０の下流側端部には、前述の吐出口９を構成する吐出ノズル１４の基端部が接続されている。   A venturi-shaped throttle channel portion 22 is formed in a portion of the ejector pipe 20 on the downstream side of the negative pressure generating portion 21. The throttle channel portion 22 includes a large-diameter portion 23 having a large channel cross-sectional area on the upstream side and downstream side, and a small-diameter portion 24 between both large-diameter portions 23, and bubbles flowing from the upstream side. The pressure of the washing water is changed when it passes, whereby the bubbles contained in the washing water are sheared and subdivided. Further, at a location downstream of the merging portion 15 with the medicine supply path 12 of the washing water flow path 11, rectification configured with a mesh that shears the bubbles as bubble subdividing means for further subdividing the bubbles contained in the washing water. A plate 25 is provided. Note that a proximal end portion of the discharge nozzle 14 constituting the discharge port 9 is connected to the downstream end portion of the ejector pipe 20.

図３に示すように薬剤供給経路１２は、界面活性剤を含む洗剤から成る液体薬剤１０が循環する循環経路２６と、循環経路２６から分岐した分岐経路２７とで構成され、該分岐経路２７の下流側端部が洗浄水流路１１の絞り流路部２２に接続されるものである。これについては後述する。   As shown in FIG. 3, the drug supply path 12 includes a circulation path 26 through which the liquid drug 10 made of a detergent containing a surfactant circulates, and a branch path 27 branched from the circulation path 26. The downstream end is connected to the throttle channel portion 22 of the cleaning water channel 11. This will be described later.

循環経路２６の途中には、液体薬剤１０を貯留する薬剤タンク２８が設けられており、該薬剤タンク２８は便器２の後部の下側部分に内装されている。薬剤タンク２８には薬剤供給口２９が設けられており、該薬剤供給口２９は着脱自在に取付けられるキャップ３０により閉塞されている。便器２の外面において薬剤タンク２８に対向する部分は、便器２に対して着脱自在なカバー（図示せず）により構成されており、使用者はこのカバーを取り外すことで、薬剤タンク２８の薬剤供給口２９から薬剤タンク２８内に液体薬剤１０を補充できるようになっている。また薬剤タンク２８は便器２に対して着脱自在に設けられており、前述のカバーを取り外して便器２から外部に取り出した状態で液体薬剤１０が補充されるようになっている。循環経路２６における分岐経路２７との分岐部３１のすぐ上流側には、薬剤タンク２８内の液体薬剤１０を循環経路２６中で循環させる循環ポンプ１３０が設けられている。この循環ポンプ１３０により、洗浄水流路１１を流れる洗浄水に液体薬剤１０を供給するための圧力を付与する薬剤供給用ポンプ１３が構成されている。   In the middle of the circulation path 26, a medicine tank 28 for storing the liquid medicine 10 is provided, and the medicine tank 28 is provided in the lower part of the rear part of the toilet 2. The medicine tank 28 is provided with a medicine supply port 29, and the medicine supply port 29 is closed by a cap 30 that is detachably attached. The portion of the outer surface of the toilet 2 that faces the drug tank 28 is configured by a cover (not shown) that is detachable from the toilet 2, and the user can remove the cover to supply the drug to the drug tank 28. The liquid medicine 10 can be replenished into the medicine tank 28 from the mouth 29. The medicine tank 28 is detachably attached to the toilet 2, and the liquid medicine 10 is replenished in a state where the cover is removed and taken out from the toilet 2 to the outside. A circulation pump 130 that circulates the liquid medicine 10 in the medicine tank 28 in the circulation path 26 is provided immediately upstream of the branch portion 31 with the branch path 27 in the circulation path 26. The circulation pump 130 constitutes a medicine supply pump 13 that applies pressure for supplying the liquid medicine 10 to the wash water flowing through the wash water flow path 11.

図２等に示されるように、分岐経路２７の上流側部分（即ち、後述の管部３７によって構成される部分）は小径の孔部で構成されており、循環ポンプ１３０により圧力を付与されて循環経路２６内を循環する液体薬剤１０のうち、少量の液体薬剤１０がこの小径の分岐経路２７を介して洗浄水流路１１に供給されるようになっている。   As shown in FIG. 2 and the like, the upstream portion of the branch path 27 (that is, the portion constituted by a pipe portion 37 to be described later) is constituted by a small-diameter hole, and pressure is applied by the circulation pump 130. Of the liquid medicine 10 circulating in the circulation path 26, a small amount of the liquid medicine 10 is supplied to the washing water flow path 11 through the small-diameter branch path 27.

分岐経路２７の下流側端部は、前述のエジェクタ管２０において洗浄水の流速が速くなって大きな負圧が発生する絞り流路部２２の小径部２４の内壁の上面に接続されるのであるが、この部分には拡径溝部２４０が形成される。拡径溝部２４０は、絞り流路部２２の内壁の上面に形成されるもので、薬剤供給経路１２と合流（すなわち連通）する部分を含み、上方に凹没し流れ方向に開口する溝である。その奥面２４１（すなわち拡径溝部２４０の上面）は、洗浄水流路１１の絞り流路部２２の前後の部分の上面と略同じ高さとなっている。   The downstream end of the branch path 27 is connected to the upper surface of the inner wall of the small-diameter portion 24 of the throttle passage portion 22 where the flow rate of the washing water is increased in the ejector pipe 20 and a large negative pressure is generated. In this portion, an enlarged-diameter groove 240 is formed. The enlarged-diameter groove portion 240 is formed on the upper surface of the inner wall of the throttle channel portion 22, includes a portion that merges (that is, communicates) with the medicine supply path 12, and is a groove that is recessed upward and opened in the flow direction. . The inner surface 241 (that is, the upper surface of the enlarged diameter groove portion 240) has substantially the same height as the upper surface of the front and rear portions of the throttle channel portion 22 of the cleaning water channel 11.

本実施形態では、拡径溝部２４０の流れ方向に直交する幅は５ｍｍ以上であるが、幅は特に限定されない。また本実施形態では、拡径溝部２４０の絞り流路部周囲の内壁からの深さは２〜５ｍｍであるが特に限定されず、その奥面２４１が洗浄水流路１１の絞り流路部２２の前後の部分の上面と略同じ高さとなっていればよい。   In this embodiment, the width orthogonal to the flow direction of the enlarged diameter groove portion 240 is 5 mm or more, but the width is not particularly limited. In this embodiment, the depth from the inner wall around the throttle channel portion of the enlarged groove portion 240 is 2 to 5 mm, but is not particularly limited, and the inner surface 241 of the throttle channel portion 22 of the washing water channel 11 is not limited. It is sufficient that the height is substantially the same as the upper surface of the front and rear portions.

洗浄水流路１１における薬剤供給経路１２との合流部１５は、絞り流路部の小径部２４で構成されている。そして、分岐経路２７の下流側端部には、開閉自在な開閉弁３３が設けられており、該開閉弁３３が開閉されることによって、薬剤供給経路１２と洗浄水流路１１の連通状態と非連通状態とが切替可能になっている。なお、開閉弁３３については後に詳述する。   The junction 15 with the medicine supply path 12 in the washing water channel 11 is constituted by a small diameter portion 24 of the throttle channel. An open / close valve 33 that can be freely opened and closed is provided at the downstream end portion of the branch path 27, and the open / close valve 33 is opened and closed to prevent the chemical supply path 12 and the washing water flow path 11 from communicating with each other. The communication state can be switched. The on-off valve 33 will be described in detail later.

上記便器装置１の洗浄水吐出装置６は制御部（図示せず）を備えており、適宜操作により制御部に便器洗浄指令が送信されると、制御部は以下に述べるボウル洗浄モードで運転を行い、ボウル部５を洗浄するように設定されている。なお薬剤供給用ポンプ１３、電磁弁１６、モータ等は制御部に接続されて制御される。   The flushing water discharge device 6 of the toilet device 1 includes a control unit (not shown). When a toilet cleaning command is transmitted to the control unit by appropriate operation, the control unit operates in a bowl cleaning mode described below. The bowl portion 5 is set to be washed. The medicine supply pump 13, the electromagnetic valve 16, the motor and the like are connected to and controlled by the control unit.

ボウル洗浄モードは、便器洗浄指令が受信された際に開始する洗浄水吐出モードと、洗浄水吐出モードで第一の所定時間運転された後に開始する薬剤入り洗浄水吐出モードとで構成される。そして、薬剤入り洗浄水吐出モードの開始から第二の所定時間後にボウル洗浄モードは終了する。   The bowl cleaning mode includes a cleaning water discharge mode that starts when a toilet bowl cleaning command is received, and a chemical-containing cleaning water discharge mode that starts after the cleaning water discharge mode has been operated for a first predetermined time. The bowl cleaning mode ends after a second predetermined time from the start of the medicine-containing cleaning water discharge mode.

洗浄水吐出モードは、液体薬剤１０が混入されていない洗浄水（即ち水道水）を吐出口９から吐出するモードである。該洗浄水吐出モードでは、薬剤供給用ポンプ１３を停止するとともに開閉弁３３を閉弁させ、薬剤供給経路１２と洗浄水流路１１を非連通状態にしたうえで、電磁弁１６を開いて洗浄水流路１１に洗浄水を供給する。これにより水源から洗浄水流路１１に供給された洗浄水は、空気混入部１７において空気が混入されて気泡入り洗浄水となり、この後、この洗浄水に含まれる気泡が絞り流路部２２で細分化され、さらに整流板２５で細分化された後、吐出口９から吐出される。またこの洗浄水吐出モードにおいては、洗浄水吐出モードを開始してから第三の所定時間経過後に、モータを駆動してトラップ筒８を略逆Ｌ字状とし、これによりボウル部５内の溜水を排水する。さらにこの第四の所定時間経過後にはモータを駆動してトラップ筒８を通常の上向きＵ字状とし、以後このボウル部５内に洗浄水が溜められることが可能な状態を維持する。   The cleaning water discharge mode is a mode in which cleaning water (that is, tap water) in which the liquid medicine 10 is not mixed is discharged from the discharge port 9. In the washing water discharge mode, the medicine supply pump 13 is stopped and the on-off valve 33 is closed to bring the medicine supply path 12 and the washing water flow path 11 into a non-communication state. Wash water is supplied to the passage 11. As a result, the cleaning water supplied from the water source to the cleaning water channel 11 is mixed with air in the air mixing unit 17 to become cleaning water containing bubbles, and thereafter, bubbles contained in the cleaning water are subdivided in the throttle channel unit 22. And is further subdivided by the current plate 25 and then discharged from the discharge port 9. Further, in this cleaning water discharge mode, after the third predetermined time has elapsed since the start of the cleaning water discharge mode, the motor is driven to make the trap cylinder 8 into a substantially inverted L shape. Drain the water. Further, after the fourth predetermined time has elapsed, the motor is driven to make the trap cylinder 8 into a normal upward U shape, and thereafter, the state in which the cleaning water can be stored in the bowl portion 5 is maintained.

ここで、洗浄水吐出モードにおいて吐出口９から吐出される洗浄水に含まれる気泡の径は比較的大径である数ｍｍ程度に設定してある。このように気泡を含む洗浄水を吐出することで、洗浄水に含まれる気泡が破裂した際に発生する高周波振動の惹起により、気泡入り洗浄水自体の高い洗浄力によってボウル部５の内面が効率良く洗浄されるようにしてある。この場合、洗浄水の節水効果が高められる。特にこの洗浄水に含まれる気泡はミリメータサイズと比較的大径であるから、気泡が破裂し易くてボウル部５の内面が効率良く洗浄される。   Here, the diameter of the bubbles contained in the cleaning water discharged from the discharge port 9 in the cleaning water discharge mode is set to about several millimeters which is a relatively large diameter. By discharging the cleaning water containing bubbles as described above, the inner surface of the bowl portion 5 is made efficient by the high cleaning power of the bubbled cleaning water itself due to the induction of high-frequency vibration that occurs when the bubbles contained in the cleaning water burst. It is designed to be washed well. In this case, the water saving effect of washing water is enhanced. In particular, since the bubbles contained in the washing water have a comparatively large diameter of millimeters, the bubbles are easily ruptured and the inner surface of the bowl portion 5 is efficiently washed.

上記洗浄水吐出モードが終了すると、薬剤入り洗浄水吐出モードに移行する。薬剤入り洗浄水吐出モードは、液体薬剤１０を混入した洗浄水（即ち、薬剤入り洗浄水）を吐出口９から吐出するモードである。薬剤入り洗浄水吐出モードでは、薬剤供給用ポンプ１３を運転して後述の如く開閉弁３３を開弁させ、薬剤供給経路１２と洗浄水流路１１を連通させるとともに、電磁弁１６を開弁させて洗浄水流路１１に洗浄水を供給する。これにより水源から洗浄水流路１１に供給された洗浄水は、薬剤供給経路１２との合流部１５よりも上流側においては空気混入部１７において空気が混入されて気泡を含む洗浄水となり、下流側に流れる。これと同時に薬剤供給用ポンプ１３によって循環経路２６内を流れる液体薬剤１０の一部が分岐経路２７及び開閉弁３３を介して洗浄水流路１１の合流部１５に流入し、この合流部１５において前記洗浄水流路１１を流れる気泡を含む洗浄水と合流する。これにより気泡を含む薬剤入り洗浄水となって以後は、この薬剤入り洗浄水に含まれる気泡が絞り流路部２２で細分化され、さらに整流板２５で細分化された後、吐出口９から外部に吐出される。   When the cleaning water discharge mode is completed, the mode shifts to the medicine-containing cleaning water discharge mode. The medicine-containing cleaning water discharge mode is a mode in which cleaning water mixed with the liquid medicine 10 (that is, medicine-containing cleaning water) is discharged from the discharge port 9. In the medicine-containing washing water discharge mode, the medicine supply pump 13 is operated to open the on-off valve 33 as described later, the medicine supply passage 12 and the washing water passage 11 are communicated, and the electromagnetic valve 16 is opened. Wash water is supplied to the wash water channel 11. As a result, the cleaning water supplied from the water source to the cleaning water flow path 11 is mixed with air in the air mixing section 17 on the upstream side of the merging section 15 with the medicine supply path 12 to become cleaning water containing bubbles, and on the downstream side. Flowing into. At the same time, a part of the liquid medicine 10 that flows in the circulation path 26 by the medicine supply pump 13 flows into the merging section 15 of the washing water flow path 11 through the branch path 27 and the on-off valve 33, and in the merging section 15, It merges with the washing water containing bubbles flowing through the washing water channel 11. As a result, the medicine-containing cleaning water containing bubbles is thereafter divided into bubbles in the medicine-containing cleaning water at the throttle channel portion 22 and further subdivided at the current plate 25, and then discharged from the discharge port 9. It is discharged outside.

上記洗浄水吐出モードにおいて吐出口９から吐出される薬剤入り洗浄水に含まれる気泡の径は、前述の洗浄水吐出モードにおいて吐出口９から吐出される洗浄水に含まれる気泡の径よりも小径となっている。これは、絞り流路部２２及び整流板２５で細分化される薬剤入り洗浄水に界面活性剤を含む液体薬剤１０が混入された場合には、洗浄水の表面張力が低下し、これにより絞り流路部２２及び整流板２５で剪断力が加えられる際に気泡がより細分化されるためである。具体的には、洗浄水吐出モードにおいては吐出口９から吐出される薬剤入り洗浄水に含まれる気泡の径が平均６０μｍ程度となるように設定されている。気泡径がこのように設定されることで、ボウル部５の内面において溜水の水面と接する喫水線部分に、界面活性剤を含む薬剤入り洗浄水で界面が形成された防汚効果の高いマイクロメータサイズの微小泡が付着される。また、この微小泡は破裂し難く長時間ボウル部５の内面に付着されることができ、これらによりボウル部５の内面、特に喫水線部分を清潔に保持することができる。   The diameter of the bubbles contained in the medicine-containing washing water discharged from the discharge port 9 in the washing water discharge mode is smaller than the diameter of the bubbles contained in the washing water discharged from the discharge port 9 in the above-described washing water discharge mode. It has become. This is because the surface tension of the washing water is lowered when the liquid medicine 10 containing a surfactant is mixed into the washing water containing the medicine subdivided by the restriction flow path section 22 and the flow straightening plate 25. This is because bubbles are further subdivided when a shearing force is applied between the flow path portion 22 and the current plate 25. Specifically, in the cleaning water discharge mode, the diameter of bubbles contained in the medicine-containing cleaning water discharged from the discharge port 9 is set to an average of about 60 μm. By setting the bubble diameter in this way, a micrometer having a high antifouling effect in which an interface is formed with a cleaning water containing a surfactant on the waterline portion in contact with the surface of the stored water on the inner surface of the bowl portion 5. Microbubbles of size are attached. Further, the microbubbles are difficult to rupture and can be adhered to the inner surface of the bowl portion 5 for a long time, whereby the inner surface of the bowl portion 5, particularly the water line portion, can be kept clean.

そして本発明にあっては、前記の開閉弁３３が、弾性変形可能な弾性部材で形成される。すなわち、薬剤入り洗浄水吐出モードにおいては該薬剤供給用ポンプ１３により付与される圧力によって弾性変形して開弁し、且つ薬剤供給用ポンプ１３が運転停止される洗浄水吐出モードにおいては弾性復帰して閉じるようになっている。以下、更に詳述する。   In the present invention, the on-off valve 33 is formed of an elastic member that can be elastically deformed. That is, in the washing water discharge mode containing medicine, the valve is elastically deformed and opened by the pressure applied by the medicine supply pump 13, and in the washing water discharge mode in which the medicine supply pump 13 is stopped, the elastic return is performed. To close. The details will be described below.

図１、図１０等に示すように、エジェクタ管２０の小径部２４からは上方に向けて筒部３４が一体に突設され、筒部３４の下底部を構成するエジェクタ管２０の外周部には、筒部３４内と小径部２４内を連通させるスリット孔３５が形成されている。このスリット孔３５は、洗浄水流路１１を流れる洗浄水の流れ方向と略平行になるよう設けられており、開閉弁３３の後述する開閉部３９が挿通される。また筒部３４の下底部には、スリット孔３５とは別に、筒部３４内と小径部２４内とを連通させる連通口３４０が形成される。筒部３４の上部には、循環経路２６の一部を構成する管路３６から下方に突設された管部３７が挿入されて密閉状態に接続されている。なお管部３７の上端は管路３６内、つまり循環経路２６内に連通している。   As shown in FIGS. 1 and 10 and the like, a cylindrical portion 34 is integrally projected upward from the small diameter portion 24 of the ejector tube 20, and is formed on the outer periphery of the ejector tube 20 constituting the lower bottom portion of the cylindrical portion 34. Is formed with a slit hole 35 that allows the inside of the cylindrical portion 34 and the inside of the small diameter portion 24 to communicate with each other. The slit hole 35 is provided so as to be substantially parallel to the flow direction of the washing water flowing through the washing water flow path 11, and an opening / closing part 39 described later of the opening / closing valve 33 is inserted through the slit hole 35. In addition to the slit hole 35, a communication port 340 for communicating the inside of the cylinder portion 34 and the inside of the small diameter portion 24 is formed in the lower bottom portion of the cylinder portion 34. A pipe part 37 protruding downward from a pipe line 36 constituting a part of the circulation path 26 is inserted into the upper part of the cylindrical part 34 and connected in a sealed state. The upper end of the pipe part 37 communicates with the inside of the pipe line 36, that is, the circulation path 26.

筒部３４の下部の内側には弾性変形可能なゴムのような弾性部材で形成された開閉弁３３が配設されている。図８及び図９に示すように開閉弁３３は、一端（上端）の開口した円筒状をなす導入部３８と、導入部３８の他端（下端）底部から下方に延設された薄片状の開閉部３９とで主体が構成されている。開閉弁３３は、図１０のように導入部３８が筒部３４の下部の内側に嵌め込まれ、導入部３８の上端周縁に設けられているフランジ部４５が管部３７との間に挟み込まれることで筒部３４に固定されている。   An opening / closing valve 33 formed of an elastic member such as elastically deformable rubber is disposed inside the lower portion of the cylindrical portion 34. As shown in FIGS. 8 and 9, the on-off valve 33 has a cylindrical introduction portion 38 having one end (upper end) opened, and a flaky shape extending downward from the bottom of the other end (lower end) of the introduction portion 38. The main body is composed of the opening / closing part 39. As shown in FIG. 10, the opening / closing valve 33 is configured such that the introduction portion 38 is fitted inside the lower portion of the cylindrical portion 34, and the flange portion 45 provided at the upper edge of the introduction portion 38 is sandwiched between the tube portion 37. It is fixed to the cylinder part 34.

開閉弁３３の開閉部３９には、その厚み方向の中央を上下方向に貫通するスリット状貫通孔４０が形成されており、これにより、弾性を有する一対のシート状部材の両端同士が接合されたような構成となっている。このスリット状貫通孔４０は、導入部３８の内側と開閉部３９の先端面（下端面）とを連通させるものであり、導入部３８の軸方向（即ち、導入部３８を通じて開閉弁３３内に導入される液体薬剤１０の流れ方向）から見て洗浄水流路１１を流れる洗浄水の流れ方向と平行なスリット状に形成されている。なお図１０に示すように、開閉弁３３の開閉部３９は外力が加わっていない状態ではスリット状貫通孔４０を閉じた状態で自己の形状が保持される。   The opening / closing part 39 of the opening / closing valve 33 is formed with a slit-like through-hole 40 that penetrates the center in the thickness direction in the up-down direction, thereby joining both ends of a pair of sheet-like members having elasticity. It has a configuration like this. The slit-shaped through hole 40 communicates the inside of the introduction portion 38 with the tip surface (lower end surface) of the opening / closing portion 39, and the axial direction of the introduction portion 38 (that is, through the introduction portion 38 into the opening / closing valve 33). It is formed in a slit shape parallel to the flow direction of the wash water flowing through the wash water flow path 11 when viewed from the flow direction of the introduced liquid medicine 10. As shown in FIG. 10, the opening / closing part 39 of the opening / closing valve 33 maintains its own shape with the slit-like through hole 40 closed when no external force is applied.

開閉弁３３の薄片状の開閉部３９の先端部は、前述のエジェクタ管２０の小径部２４に形成されたスリット孔３５内に幅方向の隙間４３を介して挿入される。これにより開閉弁３３のスリット状貫通孔４０の開閉部３９の先端開口が拡径溝部２４０の奥面２４１に位置する。つまり本例の分岐経路２７は、循環経路２６から順に連続して配管される上記管部３７、筒部３４の下部、開閉弁３３で構成されている。   The distal end portion of the flaky opening / closing portion 39 of the opening / closing valve 33 is inserted into the slit hole 35 formed in the small diameter portion 24 of the ejector tube 20 via the gap 43 in the width direction. As a result, the tip opening of the opening / closing portion 39 of the slit-like through hole 40 of the opening / closing valve 33 is positioned on the back surface 241 of the enlarged diameter groove portion 240. That is, the branch path 27 of this example is constituted by the pipe part 37, the lower part of the cylinder part 34, and the on-off valve 33 that are continuously piped from the circulation path 26.

また筒部３４の周壁部において開閉部３９に対向する位置には通気孔４１が設けられており、筒部３４内の開閉弁３３の開閉部３９外側に形成された空間４２を、通気孔４１を介して外部（大気）に連通させている。これにより開閉弁３３がスリット状貫通孔４０を閉じた図１０の状態では、洗浄水流路１１の薬剤供給経路１２との合流部１５は、開閉弁３３の開閉部３９の先端部とスリット孔３５の内周面との間に形成された隙間４３及び連通口３４０、空間４２、通気孔４１を順に介して外部に連通することとなり、これら隙間４３及び連通口３４０、空間４２、通気孔４１で洗浄水流路１１の薬剤供給経路１２との合流部１５を大気に開放させる大気開放路４４が構成される。また、開閉弁３３がスリット状貫通孔４０を開いた図１１の状態でも、大気開放路４４により、絞り流路部２２内の薬剤供給経路１２との合流部１５は、連通口３４０、空間４２、通気孔４１を順に介して大気に連通することとなる。   Further, a vent hole 41 is provided at a position facing the opening / closing portion 39 in the peripheral wall portion of the cylinder portion 34, and a space 42 formed outside the opening / closing portion 39 of the opening / closing valve 33 in the cylinder portion 34 is formed in the ventilation hole 41. It communicates with the outside (atmosphere) via Thus, in the state of FIG. 10 in which the on-off valve 33 closes the slit-like through hole 40, the junction 15 with the medicine supply path 12 of the cleaning water flow path 11 is connected to the tip of the on-off part 39 of the on-off valve 33 and the slit hole 35. The gap 43 and the communication port 340, the space 42, and the ventilation hole 41 formed between the inner circumferential surface and the ventilation hole 41 are communicated to the outside in order. The gap 43, the communication port 340, the space 42, and the ventilation hole 41 An atmosphere opening path 44 is formed for opening the junction 15 of the washing water channel 11 with the medicine supply path 12 to the atmosphere. Further, even in the state of FIG. 11 in which the on-off valve 33 opens the slit-shaped through hole 40, the junction 15 with the medicine supply path 12 in the throttle channel section 22 is connected to the communication port 340 and the space 42 by the atmosphere release path 44. Then, the air is communicated with the atmosphere through the vent holes 41 in order.

上記開閉弁３３は、薬剤入り洗浄水吐出モード時においては、図１１に示すように薬剤供給用ポンプ１３が付与する圧力により開閉部３９が弾性変形してスリット状貫通孔４０を広げるように設定されている。このため薬剤入り洗浄水吐出モードにおいては薬剤供給経路１２の分岐経路２７と洗浄水流路１１とが開閉弁３３のスリット状貫通孔４０を介して連通し、薬剤供給用ポンプ１３により送り込まれる液体薬剤１０が、薬剤供給用ポンプ１３の圧力及び洗浄水流路１１の合流部１５で発生する負圧の作用によって、洗浄水流路１１を流れる洗浄液中に安定的に供給される。なおこの時、弾性変形した開閉部３９の先端部の外周面がスリット孔３５の内壁に当接し、スリット状貫通孔４０の開口幅を一定範囲に規制するように設定されている。即ち本例にあっては上記スリット孔３５の幅方向の内壁が、スリット状貫通孔４０の開口幅を一定範囲に規制する規制手段となる。   The on-off valve 33 is set so that the opening / closing part 39 is elastically deformed by the pressure applied by the medicine supply pump 13 to widen the slit-like through hole 40 as shown in FIG. Has been. For this reason, in the medicine-containing washing water discharge mode, the branch path 27 of the medicine supply path 12 and the washing water flow path 11 communicate with each other via the slit-like through hole 40 of the on-off valve 33 and are fed by the medicine supply pump 13. 10 is stably supplied into the cleaning liquid flowing through the cleaning water channel 11 by the action of the pressure of the medicine supply pump 13 and the negative pressure generated at the junction 15 of the cleaning water channel 11. At this time, the outer peripheral surface of the distal end portion of the elastically opened / closed portion 39 is in contact with the inner wall of the slit hole 35, and the opening width of the slit-like through hole 40 is set within a certain range. That is, in this example, the inner wall in the width direction of the slit hole 35 serves as a regulating means for regulating the opening width of the slit-like through hole 40 within a certain range.

また薬剤供給用ポンプ１３が停止される洗浄水吐出モード時においては、開閉弁３３には薬剤供給用ポンプ１３の圧力が加わらず、図１０に示すように開閉弁３３は開閉部３９が弾性復帰してスリット状貫通孔４０が閉じられるように設定されている。このため洗浄水吐出モードにおいては、薬剤供給経路１２の分岐経路２７と洗浄水流路１１の連通状態が遮断される。即ち、薬剤供給用ポンプ１３の運転のオンオフに連動して、開閉弁３３の開閉部３９におけるスリット状貫通孔４０の開閉が自動的に切り替えられる構成となっている。   In the washing water discharge mode in which the medicine supply pump 13 is stopped, the pressure of the medicine supply pump 13 is not applied to the on-off valve 33, and the on-off valve 33 is elastically returned to the on-off valve 33 as shown in FIG. Thus, the slit-shaped through hole 40 is set to be closed. For this reason, in the wash water discharge mode, the communication state between the branch path 27 of the medicine supply path 12 and the wash water flow path 11 is blocked. That is, the opening and closing of the slit-shaped through hole 40 in the opening / closing part 39 of the opening / closing valve 33 is automatically switched in conjunction with the on / off operation of the medicine supply pump 13.

また、スリット状貫通孔４０が拡径溝部２４０の奥面２４１に位置するため、薬剤入り洗浄水吐出モード時においては、スリット状貫通孔４０が拡径溝部２４０を流れる洗浄水の流れに臨み、このスリット状貫通孔４０を介して洗浄水中に安定的に供給される。   In addition, since the slit-shaped through hole 40 is located on the back surface 241 of the diameter-enlarged groove portion 240, the slit-shaped through-hole 40 faces the flow of cleaning water flowing through the diameter-enlarged groove portion 240 in the medicine-containing cleaning water discharge mode. The cleaning water is stably supplied through the slit-shaped through hole 40.

そして、ボウル洗浄モードの停止時においては、洗浄水流路１１中の洗浄水の流れが停止し、洗浄水が洗浄水流路１１中に滞留している。しかし、洗浄水の吐出口９はボウル部５内に開放状態であるため、ボウル洗浄モードが停止した後に、連通口３４０を介して拡径溝部２４０に大気が流入すると共に、洗浄水が吐出口９から若干流出する。そのため、連通口３４０を介して大気が流入して洗浄水流路１１中に洗浄水が充満せず、洗浄水流路１１中の水位は、絞り流路部２２の前後の部分の上面よりも若干低くなっている。このため、洗浄水流路１１の絞り流路部２２の前後の部分の上面と略同じ高さに位置するスリット状貫通孔４０（すなわち開閉弁３３の下端）は、洗浄水流路１１中に滞留している洗浄水に接触しにくくなる。   When the bowl cleaning mode is stopped, the flow of cleaning water in the cleaning water channel 11 is stopped, and the cleaning water stays in the cleaning water channel 11. However, since the cleaning water discharge port 9 is open in the bowl portion 5, after the bowl cleaning mode is stopped, the atmosphere flows into the enlarged-diameter groove portion 240 via the communication port 340, and the cleaning water is discharged from the discharge port. Spill out from 9 slightly. Therefore, the atmosphere flows in through the communication port 340 and the cleaning water channel 11 is not filled with the cleaning water, and the water level in the cleaning water channel 11 is slightly lower than the upper surfaces of the front and rear portions of the throttle channel unit 22. It has become. For this reason, the slit-shaped through hole 40 (that is, the lower end of the on-off valve 33) located at substantially the same height as the upper surface of the front and rear portions of the throttle channel portion 22 of the cleaning water channel 11 stays in the cleaning water channel 11. It becomes difficult to contact the washing water.

このため、開閉弁３３が洗浄水に接触して、洗浄水中に含まれる塩素イオンにより開閉弁３３が劣化するのが防止され、開閉弁３３の劣化による閉止性能の低下が防止される。   For this reason, it is prevented that the on-off valve 33 comes into contact with the cleaning water, and the on-off valve 33 is prevented from being deteriorated by chlorine ions contained in the washing water, and the closing performance is not deteriorated due to the deterioration of the on-off valve 33.

また、洗浄水流路１１の吐出口９近傍の下端部に、下方に傾斜する傾斜面または下方に凹没する段差部９１が形成されることで、ボウル洗浄モードが停止する際に、洗浄水が吐出口９から流出しやすくなる。これにより、連通口３４０を介して流入する大気量が増加し、洗浄水流路１１中に滞留する洗浄水の水位がより低くなり、開閉弁３３が洗浄水により一層接触し難くなる。   In addition, an inclined surface that is inclined downward or a stepped portion 91 that is recessed downward is formed at the lower end of the cleaning water channel 11 in the vicinity of the discharge port 9, so that the cleaning water flows when the bowl cleaning mode is stopped. It becomes easy to flow out from the discharge port 9. As a result, the amount of air flowing in through the communication port 340 increases, the level of the cleaning water staying in the cleaning water channel 11 becomes lower, and the on-off valve 33 becomes more difficult to contact with the cleaning water.

なお、スリット状貫通孔４０の開口幅を一定範囲に規制する規制手段については、スリット孔３５の内周面に限らず、筒部３４の他の部分や他部材によって規制する構成であっても構わない。   Note that the restricting means for restricting the opening width of the slit-like through hole 40 to a certain range is not limited to the inner peripheral surface of the slit hole 35, and may be configured to be restricted by other portions or other members of the cylindrical portion 34. I do not care.

１ 便器装置
５ ボウル部
６ 洗浄水吐出装置
９ 吐出口
１０ 液体薬剤
１１ 洗浄水流路
１２ 薬剤供給経路
１３ 薬剤供給用ポンプ
２２ 絞り流路部
３３ 開閉弁
３５ スリット孔
４０ スリット状貫通孔
２４０ 拡径溝部
２４１ 奥面
３４０ 連通口 DESCRIPTION OF SYMBOLS 1 Toilet device 5 Bowl part 6 Washing water discharge apparatus 9 Discharge port 10 Liquid chemical | medical agent 11 Washing water flow path 12 Chemical supply path 13 Drug supply pump 22 Restriction flow path part 33 On-off valve 35 Slit hole 40 Slit-like through-hole 240 Expanding groove part 241 depth 340 communication port

Claims (4)

供給される洗浄水を吐出口から外部に吐出する洗浄水流路と、前記洗浄水流路に形成されたベンチュリ管状の絞り流路部に合流する薬剤供給経路と、前記洗浄水流路を流れる洗浄水に前記薬剤供給経路から液体薬剤を供給するための圧力を付与する薬剤供給用ポンプと、前記薬剤供給経路中に配される開閉弁とを具備し、前記開閉弁は、前記薬剤供給用ポンプの運転により開口し且つ運転停止により閉口するスリット状貫通孔を有する弾性部材であり、前記絞り流路部の内壁の上面の前記薬剤供給経路と合流する部分に上方に凹没し流れ方向に開口する拡径溝部が形成され、前記スリット状貫通孔が前記拡径溝部の奥面に位置し且つ前記洗浄水の流れに略平行となるように配し、前記絞り流路部に内部を大気に連通させて拡径溝部に空気を供給する連通口が形成されることを特徴とする洗浄水吐出装置。   A cleaning water flow path for discharging the supplied cleaning water to the outside from a discharge port; a drug supply path that merges with a venturi-shaped throttle channel portion formed in the cleaning water flow path; and a cleaning water flowing through the cleaning water flow path A drug supply pump that applies pressure to supply the liquid drug from the drug supply path; and an on-off valve disposed in the drug supply path, wherein the on-off valve operates the drug supply pump. Is an elastic member having a slit-like through-hole that is opened by the operation stop and closed when the operation is stopped. A diameter groove portion is formed, the slit-shaped through hole is disposed on the back surface of the diameter expansion groove portion and is substantially parallel to the flow of the cleaning water, and the inside of the throttle channel portion is communicated with the atmosphere. Air is supplied to the expanded groove Wash water discharging apparatus characterized by communication port is formed to be. 前記拡径溝部の流れ方向に直交する幅が５ｍｍ以上であることを特徴とする請求項１に記載の洗浄水吐出装置。   The cleaning water discharge device according to claim 1, wherein a width perpendicular to the flow direction of the diameter-enlarged groove portion is 5 mm or more. 前記拡径溝部の前記絞り流路部周囲の内壁からの深さが２〜５ｍｍであることを特徴とする請求項１に記載の洗浄水吐出装置。   The cleaning water discharge device according to claim 1, wherein a depth of the diameter-enlarged groove portion from an inner wall around the throttle channel portion is 2 to 5 mm. 前記洗浄水流路の前記吐出口近傍の下端部に、下方に傾斜する傾斜面または下方に凹没する段差部が形成されることを特徴とする請求項１に記載の洗浄水吐出装置。   The cleaning water discharge device according to claim 1, wherein an inclined surface inclined downward or a stepped portion recessed downward is formed at a lower end portion in the vicinity of the discharge port of the cleaning water flow path.
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