JP4069680B2

JP4069680B2 - Local cleaning equipment

Info

Publication number: JP4069680B2
Application number: JP2002154798A
Authority: JP
Inventors: 眞司藤井; 隆久齋藤; 和嗣林
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2002-05-28
Filing date: 2002-05-28
Publication date: 2008-04-02
Anticipated expiration: 2022-05-28
Also published as: JP2003342997A

Description

【０００１】
【発明の属する技術分野】
本発明は人体局部を洗浄するための局部洗浄装置に関する。
【０００２】
【従来の技術】
局部洗浄装置は、局部洗浄機構を有する局部洗浄装置本体と、使用者が洗浄方法等を選択操作するための操作部と、操作部からの信号に応じて便座温度や洗浄水温度や洗浄流量等を制御するための制御回路と、使用者が座るための便座とで構成され、温水タンクと洗浄ノズルとを備えた局部洗浄装置本体は、操作部からの指示に基づいて、温水タンク内の温水を洗浄ノズルから局部に向けて噴射して局部の洗浄を行う。
【０００３】
このような局部洗浄装置において、局部洗浄をより衛生的に行うために、洗浄用の温水に洗浄液を混合して洗浄ノズルから噴射するようにしたものが提供されている。
【０００４】
【発明が解決しようとする課題】
ここにおいて、洗浄液の搬送を担う洗浄液搬送手段は、局部洗浄装置の初めての使用時や、新たな洗浄液のセットを行う時など、洗浄液が満たされていないために、実際に洗浄液の搬送を行って洗浄水に混合するまでに時間がかかってしまい、洗浄ノズルから吐出される洗浄液と洗浄水との混合水は当初、洗浄水だけとなってしまう。
【０００５】
本発明はこのような点に鑑み為されたものであり、その目的とするところは洗浄液の洗浄水への混合を迅速に行うことができる局部洗浄装置を提供するにある。
【０００６】
【課題を解決するための手段】
しかして本発明は、洗剤等の洗浄液を保持している洗浄液保持部と、給水口から局部へ洗浄水を噴出するための洗浄ノズルヘ至る給水経路の途中に配設されて前記洗浄液保持部から洗浄液搬送手段で搬送される洗浄液を上記洗浄水に注入する洗浄液注入部とを有している局部洗浄装置において、上記洗浄液搬送手段を作動させて洗浄液注入部に送ることで洗浄水に洗浄液を注入することを指示するスイッチに加えて、洗浄液を洗浄液保持部に保持させた初期状態において上記洗浄液搬送手段を動作させて上記洗浄液搬送手段に洗浄液を満たす初期自給動作の指示用の指示手段を備えていることに第１の特徴を有しており、上記洗浄液搬送手段を作動させて洗浄液注入部に送ることで洗浄水に洗浄液を注入することを指示するスイッチに加えて、洗浄液を洗浄液保持部に保持させた初期状態において洗浄液保持部での洗浄液量を検出して洗浄液が所定量以上になった際に上記洗浄液搬送手段を動作させて上記洗浄液搬送手段に洗浄液を満たす初期自給動作を行わせる制御手段を備えていることに第２の特徴を有しており、さらにその電源投入時に洗浄液搬送手段を駆動して洗浄液保持部から洗浄液を所定量もしくは所定時間搬送させることで上記洗浄液搬送手段に洗浄液を満たす初期自給動作を行わせる制御手段を備えていることに第３の特徴を有している。
【０００７】
【発明の実施の形態】
以下本発明を実施の形態の一例に基づいて詳述すると、局部洗浄装置としての基本的構成は前記従来例とほぼ同じで、図２に示すように局部洗浄機構を有する局部洗浄装置本体Ａと、使用者が洗浄方法等を選択操作するための操作部２と、使用者が座るための便座３、便蓋４、洗浄ノズル５、洗浄液を納めた洗浄液保持部である剤タンク６、着座センサー７などから構成されているとともに、操作部２からの信号に応じて便座温度や洗浄水温度や洗浄流量等を制御するための制御回路Ｃ（図１参照）を備えている。
【０００８】
この局部洗浄装置における配管系統を図１に示す。水道等の水源１と洗浄ノズル５とをつなぐ給水経路１０中に、給水加熱用のヒーターＨと水ポンプ９と洗浄液注入用の混合分岐栓１２とをこの順に挿入してある。また、上記剤タンク６と混合分岐栓１２とは剤供給経路１３によって接続されており、剤供給経路１３には剤タンク６側に逆止弁１４が、混合分岐栓１２側に洗浄液搬送手段である剤ポンプ１１が挿入されている。なお、給水経路１０の末端の洗浄ノズル５は、水圧で伸張してから洗浄水を吐出し、洗浄水の供給が停止されたならば、内蔵するばねで縮むものであり、給水経路１０には流路切替弁１９を介して接続されている。この流路切替弁１９は、洗浄ノズル５に向けて洗浄水を吐出するノズル洗浄ノズル２０が接続されている。
【０００９】
また給水経路１０における剤混合分岐栓１２と洗浄ノズル５との間と、剤供給経路１３における逆止弁１４と剤ポンプ１１との間がすすぎ弁１６を備えたすすぎ経路１５によって接続されている。
【００１０】
そして、上記ヒーターＨや水ポンプ９、剤ポンプ１１、すすぎ弁１６、流路切替弁１９などは制御回路Ｃに接続されて操作部２から入力される操作指示に応じて制御回路Ｃによる制御下のもとで動作する。
【００１１】
操作部２において通常の水洗浄の指示がなされた時、制御回路Ｃは給水弁８を開いて水ポンプ９を駆動するとともに流路切替弁１９を洗浄ノズル５側に切り換える。このために水源１から供給されるとともにヒーターＨで加熱された洗浄水（水）は、洗浄水供給経路１０を通じて洗浄ノズル５に送られる。なお、この時点ではすすぎ弁１６は閉じている。
【００１２】
また洗浄液を併用する剤洗浄の指示がなされた時、制御回路Ｃは水ポンプ９を駆動するとともに剤ポンプ１１も駆動し、洗浄水供給経路１０を通じて洗浄ノズル５に送られる洗浄水に剤タンク６内の洗浄液を混合する。そして制御回路Ｃは、剤洗浄が終わったならば、自動的にすすぎ洗浄動作に入る。このすすぎ洗浄動作は、すすぎ弁１６を開いた状態で水ポンプ９及び剤ポンプ１１を作動させるものであり、この時、剤ポンプ１１は水よりも粘度の高い剤を吸引せずに、すすぎ経路１５からの水を吸引するものであり、このために剤ポンプ１１内部に滞留していた洗浄液が洗い流されて、ノズル洗浄ノズル２０を通じて便器内に排出される。この結果、剤供給経路１３における逆止弁１４から混合分岐栓１２までの間はすすがれて水で満たされることになる。なお、逆止弁１４があるために、すすぎ用の水が剤タンク６に流入してしまうことはない。
【００１３】
なお、剤洗浄動作を行うにあたっては、図５に示すように、水ポンプ９と剤ポンプ１１とを同時に作動させるのではなく、図６に示すように水ポンプ９の作動より前に剤ポンプ１１を作動させて、洗浄液が混合分岐栓１２まで送られるようにしている。洗浄水供給経路１０に水が流れていると剤ポンプ１１の吐出側に圧力がかかる上に、逆止弁１４から混合分岐栓１２までの経路長があってなかなか剤混合分岐栓１２まで剤を供給することができない点に鑑みたものであり、剤洗浄開始直後に洗浄液を洗浄水に混合させることができる。
【００１４】
ここにおいて、上記剤洗浄動作を行うにあたり、制御回路Ｃは操作部２において指示された洗浄水量に応じた水ポンプ９の駆動を行って洗浄水量を変更し、洗浄ノズル５から吐出される洗浄水（＋洗浄液）の吐出の勢いを調整するのであるが、この時、剤ポンプ１１による洗浄液の供給量（剤供給量）も調整することで、図３に示すように、洗浄水量が変わっても洗浄液の平均希釈率が一定に保たれるようにしている。図中の数字は１分間当たりの流量の例を示している。
【００１５】
なお、剤ポンプ１１による剤供給量の変更を、図４に示すように、剤ポンプ１１の間歇駆動間隔Ｔを変更（もしくは間歇駆動時のオン時間を変更）することで行っている場合、洗浄液は洗浄水に間欠的に混合されるが、前述のように洗浄ノズル５は２段式になっているために、洗浄液と洗浄水とは洗浄ノズル５内で撹枠されて、噴出される洗浄液と洗浄水の混合水の希釈率はほぼ均一になっている。
【００１６】
ところで、剤ポンプ１１が間歇駆動である場合、水ポンプ９を一定駆動させていると、剤ポンプ１１が駆動されて洗浄液を洗浄水供給経路１０に供給した時点でトータルとしての水量が増加することから、洗浄ノズル５から吐出された洗浄液と洗浄水との混合水が局部に当たる時の衝撃力も変動してしまう。この点からすれば、図６に示すように、剤ポンプ１１の駆動に合わせて水ポンプ９の駆動力を低下させ、トータルとしての混合水量が変化しないようにすると、局部にかかる衝撃力を一定にすることができる。
【００１７】
水ポンプ９で洗浄水の供給量の変更を行うものを示したが、水源１の水圧を利用して洗浄水を供給するとともに流量調整弁（図示せず）を用いて洗浄水の供給量の変更を行うものでは、流量調整弁の制御に合わせて剤ポンプ１１による洗浄液の供給量変更を行えばよい。
【００１８】
もっとも、水ポンプ９や流量調整弁による流量調整は、水源１の水圧や水ポンプ９の性能等のバラツキによって若干変動することがあり、この時には洗浄液と洗浄水との平均希釈率にもばらつきが生じることになる。このために洗浄水供給経路１０中に流量センサー１８を設けて、この流量センサー１８で検出される流量に応じて剤ポンプ１１による洗浄液供給量の調整を行うようにしてもよい。この場合、水源１の水圧ばらつきや水ポンプ９の性能ばらつきなどに影響されることなく平均希釈率のばらつきを低減することができる。
【００１９】
ところで、局部洗浄装置を初めて使用する時や、新しい剤タンク６をセットしたり、剤タンク６に洗浄液の補充を行った時などは、剤ポンプ１１が洗浄液を吸引することに時間を要して、使用者が剤洗浄をスタートさせる剤洗浄スイッチを選択指示しても、初めのうちは洗浄液が混入されていない剤洗浄が行われてしまう。
【００２０】
このために、上記操作部２には「初期剤自給スイッチ」を設けておき、このスイッチを投入（図７のｔ０）すれば、剤ポンプ１１が連続駆動して洗浄液を吸引し、剤供給経路１３及び剤ポンプ１１を満たすようにしておくのが好ましい。なお、この時の剤ポンプ１１の連続駆動は所定量の洗浄液の吸引を行った時点で、あるいは所定時間だけ洗浄液の吸引を行った時点で停止させるものとする。図７中のＴａはこの初期自給動作区間を示している。
【００２１】
剤タンク６の重量を検出する重量センサーを設けておき、重量センサーによって剤タンク６が「空から満水」になったことが検出されたならば、「初期剤自給スイッチ」が押された時と同様の動作を行うようにしておいてもよい。電源が投入された時もこの初期自給動作がなされるようにしておくとよい。
【００２２】
さらに、上記のように剤洗浄に続いてすすぎ動作がなされるものでは、通常時、剤供給経路１３における逆止弁１４以降の部分には洗浄液ではなく洗浄水が満たされているために、使用者が剤洗浄スイッチを選択指示しても通常の剤ポンプ１１の間欠駆動では洗浄水供給経路１０に剤を供給することに時間を要してしまい、最初は洗浄液の入らない剤洗浄が行われてしまう。そこで剤洗浄スイッチを選択指示した直後（図７中のｔ）は、剤ポンプ１１が所定時間だけ連続駆動を行い、その後、更に通常よりも駆動力を増大させるとともに間欠駆動の駆動時の時間を長くして、剤供給経路１３及び剤ポンプ１１に洗浄液を満たし、その後、通常の間歇駆動動作に移るようにしておくのが好ましい。図７中のＴｂは剤洗浄開始時の駆動期間を、Ｔｃは通常駆動期間を示している。
【００２３】
また、剤タンク６に納められる洗浄液は、その種類によって様々な粘度のものがあり、洗浄液の種類によっては剤ポンプ１１による洗浄水供給経路１０への洗浄液の供給量が変動し、それに伴い希釈率がバラついてしまうことがある。
【００２４】
この点を防止するには、剤タンク６内の洗浄液の粘度を検出する粘度センサー１７を設けて、制御回路は粘度センサー１７で検知される洗浄液の粘度に応じて、剤ポンプ１１の動作を制御することで、洗浄液の粘度が高い場合（図８(a)参照）も洗浄液の粘度が低い場合（図８(b)参照）も希釈率を一定にすることができる。なお、ここでは洗浄液の粘度に応じて調整する場合を示したが、剤タンク６内の洗浄液の濃度を直接検出することができる濃度センサーがあれば、この濃度に応じて剤ポンプ１１の動作を制御すればよく、要は洗浄液の特性に合わせて剤ポンプ１１を制御することで、洗浄液の特性が異なっても同じ希釈率の混合水を得ることができるものとなる。
【００２５】
さらには、洗浄水を加熱するヒーターＨは、通常、図９に示すように、一定の熱量での加熱を行っているが、洗浄液の供給が間欠的に行われるものにおいては、洗浄液の温度が低い時、洗浄水に洗浄液が混合された時点で温度の低下が生じてしまう。また、洗浄液の混合を加味して加熱を行っている場合、洗浄液の供給が止まった時に洗浄水の温度が高くなりすぎてしまうことがある。
【００２６】
これを防ぐには、剤ポンプ１１とヒーターＨの制御を同期させ、図１０に示すように剤ポンプ１１が駆動した際はヒーターＨの熱供給量を調整する（図示例では高める）ことで、使用者は常に一定の温度の剤洗浄を利用することができるものとなる。
【００２７】
ところで、局部洗浄装置を設置して初めて使用する時には、配管中に空気が入っており、この場合、剤ポンプ１１に洗浄液を満たすのに多くの洗浄液が必要となる。しかし、電源の投入で剤ポンプ１１を駆動するだけでは、配管に空気が入っているわけではない状態、たとえば停電後の復帰時や、清掃などのために電源を切った後の復帰時と区別がつかない。図１１及び図１２はこの点に鑑みたもので、水源１と水ポンプ９との間に設置された給水弁２１及び水タンク２２のうち、水タンク２２内に水位センサ２３を配置している。そして局部洗浄装置を設置して初めて使用する時は、水タンク２２内に洗浄水（水）は入っていないことから、フラッグをオンとし、その後、水タンク２２に注水された後も、初期使用であることを認識できるようにしておく。そして局部洗浄スイッチがオンされた時、上記フラッグがオンであれば、上記配管内の空気の排出も想定した初期剤供給動作（剤ポンプ１１の駆動）を行い、フラッグがオフであれば、すなわち設置直後の使用でない場合は、上記初期剤供給動作をスキップするようにしている。
【００２８】
【発明の効果】
以上のように請求項１の発明においては、洗剤等の洗浄液を保持している洗浄液保持部と、給水口から局部へ洗浄水を噴出するための洗浄ノズルヘ至る給水経路の途中に配設されて前記洗浄液保持部から洗浄液搬送手段で搬送される洗浄液を上記洗浄水に注入する洗浄液注入部とを有している局部洗浄装置において、上記洗浄液搬送手段を作動させて洗浄液注入部に送ることで洗浄水に洗浄液を注入することを指示するスイッチに加えて、洗浄液を洗浄液保持部に保持させた初期状態において上記洗浄液搬送手段を動作させて上記洗浄液搬送手段に洗浄液を満たす初期自給動作の指示用の指示手段を備えているために、指示手段の指示による洗浄液搬送手段の作動によって洗浄液搬送手段を洗浄液で満たすことができるものであり、このために実際に洗浄液を洗浄水に混合させた混合水による洗浄動作を行う時、最初から洗浄液が混合された洗浄水で洗浄を行うことができる。
【００２９】
また請求項２の発明においては、洗浄液を洗浄液保持部に保持させた初期状態において洗浄液保持部での洗浄液量を検出して洗浄液が所定量以上になった際に上記洗浄液搬送手段を動作させて上記洗浄液搬送手段に洗浄液を満たす初期自給動作を行わせる制御手段を備えているために、洗浄液を補充したり新たな洗浄液をセットした時など、洗浄液搬送手段が作動して洗浄液搬送手段を洗浄液で満たすことができるものであり、このために実際に洗浄液を洗浄水に混合させた混合水による洗浄動作を行う時、最初から洗浄液が混合された洗浄水で洗浄を行うことができる。
【００３０】
さらに請求項３の発明においては、その電源投入時に洗浄液搬送手段を駆動して洗浄液保持部から洗浄液を所定量もしくは所定時間搬送させることで上記洗浄液搬送手段に洗浄液を満たす初期自給動作を行わせる制御手段を備えているために、初めて局部洗浄装置を使用する時や、局部洗浄装置の清掃などのために電源をいったんオフとした後の使用時など、電源投入に伴って洗浄液搬送手段が作動して洗浄液搬送手段を洗浄液で満たすことができるものであり、このために実際に洗浄液を洗浄水に混合させた混合水による洗浄動作を行う時、最初から洗浄液が混合された洗浄水で洗浄を行うことができる。
【図面の簡単な説明】
【図１】本発明の実施の形態の一例のブロック図である。
【図２】同上の外観を示す斜視図である。
【図３】同上の動作を示すタイムチャートである。
【図４】同上の剤ポンプの間歇駆動についての説明図である。
【図５】同上の動作の一例を示すタイムチャートである。
【図６】同上の動作の他例を示すタイムチャートである。
【図７】同上の他の動作の説明図である。
【図８】 (a)(b)は夫々他例の動作の説明図である。
【図９】別の動作の説明図である。
【図１０】さらに別の動作の説明図である。
【図１１】他例のブロック図である。
【図１２】同上の制御のフローチャートである。
【符号の説明】
５洗浄ノズル
６剤タンク
９水ポンプ
１１剤ポンプ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a local cleaning device for cleaning a local body part.
[0002]
[Prior art]
The local cleaning device includes a local cleaning device main body having a local cleaning mechanism, an operation unit for a user to select and operate a cleaning method, a toilet seat temperature, a cleaning water temperature, a cleaning flow rate, and the like according to a signal from the operation unit. The local cleaning device main body comprising a control circuit for controlling the toilet and a toilet seat for the user to sit on, and equipped with a hot water tank and a cleaning nozzle is provided with hot water in the hot water tank based on instructions from the operation unit. Is sprayed from the cleaning nozzle toward the local area to clean the local area.
[0003]
In such a local cleaning apparatus, in order to perform local cleaning more hygienically, a cleaning liquid mixed with warm water for cleaning and sprayed from a cleaning nozzle is provided.
[0004]
[Problems to be solved by the invention]
Here, the cleaning liquid transport means for transporting the cleaning liquid actually transports the cleaning liquid because the cleaning liquid is not filled, such as when the local cleaning device is used for the first time or when a new cleaning liquid is set. It takes time to mix with the cleaning water, and the mixed water of the cleaning liquid and the cleaning water discharged from the cleaning nozzle is initially only the cleaning water.
[0005]
The present invention has been made in view of the above points, and an object of the present invention is to provide a local cleaning apparatus capable of quickly mixing a cleaning liquid into cleaning water.
[0006]
[Means for Solving the Problems]
Accordingly, the present invention provides a cleaning liquid holding part that holds a cleaning liquid such as a detergent, and a cleaning liquid from the cleaning liquid holding part that is disposed in the middle of a water supply path from a water supply port to a cleaning nozzle for jetting the cleaning water to a local part. In a local cleaning apparatus having a cleaning liquid injection section for injecting the cleaning liquid transferred by the transfer means into the cleaning water, the cleaning liquid is injected into the cleaning water by operating the cleaning liquid transfer means and sending it to the cleaning liquid injection section. In addition to a switch for instructing this, there is provided an instruction means for instructing an initial self-sufficiency operation in which the cleaning liquid transporting means is operated to fill the cleaning liquid in the cleaning liquid transporting means in an initial state where the cleaning liquid is held in the cleaning liquid holding unit . in particular it has a first feature, in addition to the switch for instructing to inject a cleaning liquid to the cleaning water by sending a cleaning liquid injecting section by operating the washing liquid transporting means The initial washing liquid was operating the washing liquid transporting means in the washing liquid amount detected and the cleaning liquid in the cleaning liquid holding unit in the initial state of being held in the cleaning liquid holding portion exceeds a predetermined amount satisfies a cleaning liquid to the cleaning liquid conveying means has a second characteristic in that it comprises a control means for causing the self-sufficiency operation, further the at power-on by driving the cleaning liquid transport means a cleaning liquid from the cleaning liquid holding unit that is conveyed by a predetermined amount or a predetermined time A third feature is that a control means for causing the cleaning liquid conveying means to perform an initial self-sufficiency operation for filling the cleaning liquid is provided.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on an example of an embodiment. The basic configuration as a local cleaning device is substantially the same as the conventional example, and a local cleaning device main body A having a local cleaning mechanism as shown in FIG. An operation unit 2 for a user to select and operate a cleaning method, a toilet seat 3 for a user to sit, a toilet lid 4, a cleaning nozzle 5, an agent tank 6 that is a cleaning liquid holding unit for storing cleaning liquid, and a seating sensor 7 and the like, and a control circuit C (see FIG. 1) for controlling the toilet seat temperature, the washing water temperature, the washing flow rate, and the like according to the signal from the operation unit 2.
[0008]
A piping system in this local cleaning apparatus is shown in FIG. A water supply heating heater H, a water pump 9 and a mixing branch plug 12 for injecting a cleaning liquid are inserted in this order in a water supply path 10 that connects a water source 1 such as a water supply and a cleaning nozzle 5. Further, the agent tank 6 and the mixing branch plug 12 are connected by an agent supply path 13, and the agent supply path 13 is provided with a check valve 14 on the agent tank 6 side and a cleaning liquid conveying means on the mixing branch plug 12 side. A certain agent pump 11 is inserted. The cleaning nozzle 5 at the end of the water supply path 10 is expanded by water pressure and then discharges the cleaning water. When the supply of the cleaning water is stopped, the cleaning nozzle 5 is contracted by a built-in spring. They are connected via a flow path switching valve 19. The flow path switching valve 19 is connected to a nozzle cleaning nozzle 20 that discharges cleaning water toward the cleaning nozzle 5.
[0009]
Further, the agent mixing branch plug 12 and the cleaning nozzle 5 in the water supply passage 10 and the check valve 14 and the agent pump 11 in the agent supply passage 13 are connected by a rinsing passage 15 having a rinsing valve 16. .
[0010]
The heater H, the water pump 9, the agent pump 11, the rinse valve 16, the flow path switching valve 19 and the like are connected to the control circuit C and are controlled by the control circuit C in accordance with an operation instruction input from the operation unit 2. Works under.
[0011]
When a normal water washing instruction is given in the operation unit 2, the control circuit C opens the water supply valve 8 to drive the water pump 9, and switches the flow path switching valve 19 to the washing nozzle 5 side. For this purpose, the cleaning water (water) supplied from the water source 1 and heated by the heater H is sent to the cleaning nozzle 5 through the cleaning water supply path 10. At this point, the rinse valve 16 is closed.
[0012]
Further, when an instruction for cleaning the agent using the cleaning liquid is given, the control circuit C drives the water pump 9 and also the agent pump 11, and supplies the agent tank 6 to the cleaning water sent to the cleaning nozzle 5 through the cleaning water supply path 10. Mix the cleaning solution inside. Then, the control circuit C automatically enters the rinsing cleaning operation when the agent cleaning is completed. In this rinsing operation, the water pump 9 and the agent pump 11 are operated with the rinsing valve 16 opened. At this time, the agent pump 11 does not suck the agent having a viscosity higher than that of the water, and the rinsing path. Accordingly, the washing liquid staying inside the agent pump 11 is washed away and discharged into the toilet through the nozzle washing nozzle 20. As a result, the space from the check valve 14 to the mixing branch plug 12 in the agent supply path 13 is rinsed and filled with water. Since the check valve 14 is provided, the rinsing water does not flow into the agent tank 6.
[0013]
In performing the agent cleaning operation, the water pump 9 and the agent pump 11 are not operated simultaneously as shown in FIG. 5, but the agent pump 11 is operated before the operation of the water pump 9 as shown in FIG. The cleaning liquid is sent to the mixing branch plug 12. If water is flowing through the washing water supply path 10, pressure is applied to the discharge side of the agent pump 11, and there is a path length from the check valve 14 to the mixing branch plug 12, so that the agent is easily supplied to the agent mixing branch plug 12. In view of the point that it cannot be supplied, the cleaning liquid can be mixed with the cleaning water immediately after the start of the agent cleaning.
[0014]
Here, in performing the agent cleaning operation, the control circuit C drives the water pump 9 according to the amount of cleaning water instructed by the operation unit 2 to change the amount of cleaning water, and the cleaning water discharged from the cleaning nozzle 5. The (+ cleaning liquid) discharge momentum is adjusted. At this time, even if the cleaning water supply amount (agent supply amount) by the agent pump 11 is also adjusted, as shown in FIG. The average dilution rate of the cleaning liquid is kept constant. The numbers in the figure show examples of flow rate per minute.
[0015]
When the agent supply amount is changed by the agent pump 11 by changing the intermittent drive interval T of the agent pump 11 (or changing the ON time during intermittent drive) as shown in FIG. Is mixed intermittently with the cleaning water, but since the cleaning nozzle 5 is of a two-stage type as described above, the cleaning liquid and the cleaning water are stirred in the cleaning nozzle 5 and ejected. And the dilution rate of mixed water of washing water is almost uniform.
[0016]
By the way, when the agent pump 11 is intermittently driven, if the water pump 9 is constantly driven, the total amount of water increases when the agent pump 11 is driven and the cleaning liquid is supplied to the cleaning water supply path 10. Therefore, the impact force when the mixed water of the cleaning liquid and the cleaning water discharged from the cleaning nozzle 5 hits the local area also varies. From this point of view, as shown in FIG. 6, when the driving force of the water pump 9 is decreased in accordance with the driving of the agent pump 11 so that the total mixed water amount does not change, the impact force applied to the local portion is constant. Can be.
[0017]
Although the water pump 9 is used to change the supply amount of cleaning water, the cleaning water is supplied using the water pressure of the water source 1 and the flow rate adjustment valve (not shown) is used to adjust the supply amount of the cleaning water. For the change, the supply amount of the cleaning liquid by the agent pump 11 may be changed in accordance with the control of the flow rate adjustment valve.
[0018]
However, the flow rate adjustment by the water pump 9 and the flow rate adjustment valve may slightly vary depending on variations in the water pressure of the water source 1 and the performance of the water pump 9, and at this time, the average dilution ratio between the cleaning liquid and the cleaning water also varies. Will occur. For this purpose, a flow rate sensor 18 may be provided in the cleaning water supply path 10 and the cleaning liquid supply amount may be adjusted by the agent pump 11 in accordance with the flow rate detected by the flow rate sensor 18. In this case, variation in the average dilution rate can be reduced without being affected by variations in water pressure of the water source 1 or performance variations in the water pump 9.
[0019]
By the way, when the local cleaning device is used for the first time, when a new agent tank 6 is set, or when the agent tank 6 is replenished with the cleaning liquid, it takes time for the agent pump 11 to suck the cleaning liquid. Even if the user instructs to select the agent cleaning switch for starting the agent cleaning, the agent cleaning without the cleaning liquid is initially performed.
[0020]
For this purpose, the operation unit 2 is provided with an “initial agent self-supply switch”, and when this switch is turned on (t0 in FIG. 7), the agent pump 11 is continuously driven to suck the cleaning liquid and supply the agent supply path. 13 and the agent pump 11 are preferably filled. The continuous driving of the agent pump 11 at this time is stopped when a predetermined amount of cleaning liquid is sucked or when the cleaning liquid is sucked for a predetermined time. Ta in FIG. 7 indicates this initial self-sustained operation section.
[0021]
If a weight sensor for detecting the weight of the agent tank 6 is provided, and it is detected by the weight sensor that the agent tank 6 has become “full of water from the sky”, when the “initial agent self-supply switch” is pressed, A similar operation may be performed. This initial self-sufficiency operation should be performed even when the power is turned on.
[0022]
Further, in the case where the rinsing operation is performed after the agent cleaning as described above, the portion after the check valve 14 in the agent supply path 13 is normally filled with the cleaning water instead of the cleaning liquid. Even if an operator selects and instructs the agent cleaning switch, it takes time to supply the agent to the cleaning water supply path 10 in the normal intermittent operation of the agent pump 11, and at first, the agent cleaning without the cleaning liquid is performed. End up. Thus, immediately after the selection of the agent cleaning switch (t in FIG. 7), the agent pump 11 continuously drives for a predetermined time, and then further increases the driving force more than usual and sets the time for intermittent driving. It is preferable that the agent supply path 13 and the agent pump 11 are filled with the cleaning liquid, and then the normal intermittent drive operation is performed thereafter. In FIG. 7, Tb indicates a driving period at the start of agent cleaning, and Tc indicates a normal driving period.
[0023]
The cleaning liquid stored in the agent tank 6 has various viscosities depending on the type of the cleaning liquid. Depending on the type of the cleaning liquid, the supply amount of the cleaning liquid to the cleaning water supply path 10 by the agent pump 11 varies, and accordingly the dilution rate. May fall apart.
[0024]
In order to prevent this point, a viscosity sensor 17 for detecting the viscosity of the cleaning liquid in the agent tank 6 is provided, and the control circuit controls the operation of the agent pump 11 according to the viscosity of the cleaning liquid detected by the viscosity sensor 17. Thus, the dilution rate can be made constant both when the viscosity of the cleaning liquid is high (see FIG. 8A) and when the viscosity of the cleaning liquid is low (see FIG. 8B). Here, the case of adjusting according to the viscosity of the cleaning liquid is shown, but if there is a concentration sensor that can directly detect the concentration of the cleaning liquid in the agent tank 6, the operation of the agent pump 11 is performed according to this concentration. In short, by controlling the agent pump 11 in accordance with the characteristics of the cleaning liquid, mixed water having the same dilution rate can be obtained even if the characteristics of the cleaning liquid are different.
[0025]
Furthermore, the heater H that heats the cleaning water normally performs heating with a constant amount of heat, as shown in FIG. 9, but in the case where the cleaning liquid is supplied intermittently, the temperature of the cleaning liquid is When the temperature is low, the temperature drops when the cleaning liquid is mixed with the cleaning water. In addition, when heating is performed in consideration of the mixing of the cleaning liquid, the temperature of the cleaning water may become too high when the supply of the cleaning liquid is stopped.
[0026]
In order to prevent this, the control of the agent pump 11 and the heater H is synchronized, and when the agent pump 11 is driven as shown in FIG. 10, the heat supply amount of the heater H is adjusted (in the example shown in the drawing), The user can always use the agent cleaning at a constant temperature.
[0027]
By the way, when the local cleaning device is installed and used for the first time, air is contained in the pipe. In this case, a large amount of cleaning liquid is required to fill the agent pump 11 with the cleaning liquid. However, when the agent pump 11 is only driven by turning on the power, the pipe is not filled with air, for example, when returning after a power failure or when returning after turning off the power for cleaning. I can't. 11 and 12 are in view of this point, and the water level sensor 23 is arranged in the water tank 22 among the water supply valve 21 and the water tank 22 installed between the water source 1 and the water pump 9. . When the local cleaning device is installed and used for the first time, there is no cleaning water (water) in the water tank 22, so the flag is turned on, and then the water tank 22 is injected for initial use. So that you can recognize. When the local cleaning switch is turned on, if the flag is on, an initial agent supply operation (driving of the agent pump 11) is performed assuming that the air in the pipe is discharged, and if the flag is off, that is, When not in use immediately after installation, the initial agent supply operation is skipped.
[0028]
【The invention's effect】
As described above, in the first aspect of the present invention, the cleaning liquid holding unit holding the cleaning liquid such as a detergent and the water supply path from the water supply port to the cleaning nozzle for jetting the cleaning water to the local part are arranged in the middle. In a local cleaning apparatus having a cleaning liquid injection section for injecting the cleaning liquid conveyed from the cleaning liquid holding section by the cleaning liquid conveying means into the cleaning water, cleaning is performed by operating the cleaning liquid conveying means and sending it to the cleaning liquid injection section. In addition to the switch for instructing to inject the cleaning liquid into the water, in the initial state in which the cleaning liquid is held in the cleaning liquid holding unit, the cleaning liquid transporting unit is operated to fill the cleaning liquid in the cleaning liquid transporting unit . for comprises a pointing means, the actuation of the cleaning liquid conveying means by instructing the indication means are those of the cleaning liquid transfer means can be filled with cleaning liquid, this order When actually performing a cleaning operation by the mixed water obtained by mixing the cleaning liquid to the wash water, it can be cleaned with cleaning water washing solution is mixed from the beginning.
[0029]
According to a second aspect of the present invention, in the initial state in which the cleaning liquid is held in the cleaning liquid holding part, the amount of the cleaning liquid in the cleaning liquid holding part is detected, and the cleaning liquid conveying means is operated when the cleaning liquid exceeds a predetermined amount. Since the cleaning liquid transporting means is provided with a control means for performing an initial self-sufficiency operation to fill the cleaning liquid, the cleaning liquid transporting means is activated and the cleaning liquid transporting means is cleaned with the cleaning liquid when the cleaning liquid is replenished or a new cleaning liquid is set. For this reason, when performing the cleaning operation with the mixed water obtained by actually mixing the cleaning liquid with the cleaning water, the cleaning can be performed with the cleaning water mixed with the cleaning liquid from the beginning.
[0030]
Further, in the invention of claim 3, when the power is turned on, the cleaning liquid transporting means is driven and the cleaning liquid is transported from the cleaning liquid holding part for a predetermined amount or for a predetermined time so that the cleaning liquid transporting means performs an initial self-supply operation for filling the cleaning liquid. Therefore, the cleaning liquid transfer means is activated when the power is turned on, such as when using the local cleaning device for the first time, or after using the power after turning off the power to clean the local cleaning device. Therefore, the cleaning liquid conveying means can be filled with the cleaning liquid. For this reason, when performing the cleaning operation with the mixed water in which the cleaning liquid is actually mixed with the cleaning water, the cleaning liquid is mixed with the cleaning liquid from the beginning. be able to.
[Brief description of the drawings]
FIG. 1 is a block diagram of an exemplary embodiment of the present invention.
FIG. 2 is a perspective view showing the external appearance of the above.
FIG. 3 is a time chart showing the operation of the above.
FIG. 4 is an explanatory view of intermittent driving of the agent pump.
FIG. 5 is a time chart showing an example of the operation described above.
FIG. 6 is a time chart showing another example of the operation described above.
FIG. 7 is an explanatory diagram of another operation of the above.
FIGS. 8A and 8B are explanatory diagrams of operations of other examples, respectively.
FIG. 9 is an explanatory diagram of another operation.
FIG. 10 is an explanatory diagram of still another operation.
FIG. 11 is a block diagram of another example.
FIG. 12 is a flowchart of the control described above.
[Explanation of symbols]
5 Cleaning nozzle 6 Agent tank 9 Water pump 11 Agent pump

Claims

A cleaning liquid holding unit that holds a cleaning liquid such as a detergent and a water supply path from the water supply port to the cleaning nozzle for jetting the cleaning water to the local area, and is transported from the cleaning liquid holding unit by the cleaning liquid transporting means. In a local cleaning apparatus having a cleaning liquid injection unit for injecting the cleaning liquid into the cleaning water, a switch for instructing the injection of the cleaning liquid into the cleaning water by operating the cleaning liquid conveying means and sending it to the cleaning liquid injection unit In addition, the apparatus is provided with an instruction unit for instructing an initial self-operating operation that operates the cleaning liquid transport unit in an initial state where the cleaning liquid is held in the cleaning liquid holding unit and fills the cleaning liquid with the cleaning liquid. Cleaning device.

A cleaning liquid holding unit that holds a cleaning liquid such as a detergent and a water supply path from the water supply port to the cleaning nozzle for jetting the cleaning water to the local area, and is transported from the cleaning liquid holding unit by the cleaning liquid transporting means. In a local cleaning apparatus having a cleaning liquid injection unit for injecting the cleaning liquid into the cleaning water, a switch for instructing the injection of the cleaning liquid into the cleaning water by operating the cleaning liquid conveying means and sending it to the cleaning liquid injection unit In addition, in the initial state where the cleaning liquid is held in the cleaning liquid holding part, the amount of the cleaning liquid in the cleaning liquid holding part is detected, and when the cleaning liquid exceeds a predetermined amount, the cleaning liquid transfer means is operated to A local cleaning device comprising a control means for performing an initial self-sufficiency operation satisfying the above.

A cleaning liquid holding unit that holds a cleaning liquid such as a detergent and a water supply path from the water supply port to the cleaning nozzle for jetting the cleaning water to the local area, and is transported from the cleaning liquid holding unit by the cleaning liquid transporting means. in the local cleaning device that the cleaning liquid and a cleaning liquid injection portion for injecting the above washing water, the washing liquid a cleaning liquid from the power-washing solution holding portion by driving the cleaning liquid conveying means when by to convey a predetermined amount or a predetermined time A local cleaning apparatus comprising a control means for causing the transport means to perform an initial self-sufficiency operation for filling the cleaning liquid .