JP4050376B2 - Miscellaneous water use equipment - Google Patents

Miscellaneous water use equipment Download PDF

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JP4050376B2
JP4050376B2 JP06950398A JP6950398A JP4050376B2 JP 4050376 B2 JP4050376 B2 JP 4050376B2 JP 06950398 A JP06950398 A JP 06950398A JP 6950398 A JP6950398 A JP 6950398A JP 4050376 B2 JP4050376 B2 JP 4050376B2
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water
supply
miscellaneous
storage tank
hot water
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JPH11247244A (en
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文夫 近藤
昭仁 鬼頭
安司 纐纈
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パロマ工業株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は雑用水を水洗トイレに利用する雑用水利用装置に関する。
【0002】
【従来の技術】
従来から、雑用水を水洗トイレに利用する雑用水利用装置が知られている。例えば浴槽内の残り湯を利用するものでは、浴槽から水洗トイレの貯水タンク内に浴槽水を供給する浴槽水供給路を形成し、貯水タンク内に浴槽水を送り込むことで水洗トイレの流し水に浴槽水を利用して節水することができる。
【0003】
【発明が解決しようとする課題】
しかしながら上述したような構成では、浴槽水供給路の配管内には常に浴槽水が溜まった状態となり、水あか等が付着しやすく詰まりやすいといった問題があった。
本発明の雑用水利用装置は上記課題を解決し、配管内の水あか等の付着を防止することを目的とする。
【0004】
【課題を解決するための手段】
上記課題を解決する本発明の請求項1記載の雑用水利用装置は、
浴槽内の残り湯等の雑用水を水洗トイレの貯水タンクに供給する流路となる雑用水供給路と、
上水を供給するための流路となり上記雑用水供給路に合流される上水供給路と、
上記貯水タンク内に溜まった水の使用を検知する使用検知手段と、
上記使用検知手段による水使用検知に基づいて、上記雑用水供給路を介して上記貯水タンクへの雑用水の供給を開始する雑用水供給手段と、
上記貯水タンク内の貯水状態を検知する貯水状態検知手段と、
当該貯水状態検知手段により、上記貯水タンク内の貯水量が満水手前の所定水位にまで上昇したと検知された場合には、上記雑用水供給路からの雑用水の供給を、上記上水供給路からの上水の供給に切り替える供給切替手段と
を備えたことを要旨とする。
【0005】
【課題を解決するための手段】
上記課題を解決する本発明の請求項2記載の雑用水利用装置は、請求項1記載の雑用水利用装置において、
上記貯水状態検出手段が上記貯水タンクへの通水流量を検出する流量検出装置を備え、
上記供給切替手段は上記流量検出装置の検出流量が所定値以下まで減少した時点で雑用水の供給を、上記上水供給路からの上水の供給に切り替えることを要旨とする。
【0006】
上記構成を有する本発明の請求項1記載の雑用水利用装置は、水洗トイレの貯水タンク内に溜まった水の使用検知に基づいて雑用水供給路を介して貯水タンクへの雑用水の供給を開始する。そして、貯水タンク内の貯水量が満水となる前に雑用水供給路からの雑用水の供給を上水の供給に切り替えることで、雑用水の供給後にも雑用水供給路に雑用水がそのまま残ることを防いで汚れを付着しにくくすることができる。
【0007】
更に、上記構成を有する本発明の請求項2記載の雑用水利用装置は、上記貯水状態検出手段が貯水タンクへの通水流量を検出する流量検出装置を備え、この検出流量が所定値以下まで減少した時点で雑用水の供給を上水の供給に切り替える。通常、水洗トイレの貯水タンクには水位の上昇に伴って上昇する浮玉に連動して流路面積を減少させ、所定水位まで上昇することで流路を完全に遮断する構成のボールタップが設けられるため、流量検出装置の検出流量の減少に基づいて貯水量の増加を判断することができる。従って、流量検出装置の検出流量が所定値以下まで減少した時点で雑用水の供給を上水の供給に切り替える構成とすることで、所定値の設定により雑用水供給路の雑用水を排出する必要最小限の水量が供給されるようなタイミングで切り替えることができる。
【0008】
【発明の実施の形態】
以上説明した本発明の構成・作用を一層明らかにするために、以下本発明の雑用水利用装置の好適な実施例について説明する。
図1は、本発明の第1実施例としての雑用水利用装置を備えた残り湯利用システムの概略構成図である。このシステムは大別して、浴槽水の循環加熱及び水道水の加熱を行なう給湯器付風呂釜10と、水洗トイレ90及び洗濯機100への残り湯供給を行なう雑用水利用装置60とにより構成される。
【0009】
給湯器付風呂釜10は、通水される水を加熱して出湯する出湯部20と、浴槽3内の湯を循環させて追い焚きする循環加熱部30と、これらを制御する給湯コントローラ40とからなる。
【0010】
出湯部20は、水道管1に接続される給水路21と、給水路21から供給される水をバーナ22の燃焼熱により加熱する熱交換器23と、熱交換器23で加熱された湯を送り出す流路となる出湯路24とを備え、出湯路24は台所やシャワー等に湯を供給するための外部出湯管2に接続される。
【0011】
循環加熱部30は、浴槽3に戻り流路4と往き流路5とを介して接続される循環路31と、浴槽水を循環路31に循環させるためのポンプ32と、循環される浴槽水をバーナ33の燃焼熱により加熱する熱交換器34とを備える。また、出湯部20の出湯路24と循環加熱部30の循環路31とは給水弁35を備えた落とし込み流路36で接続され、浴槽3への出湯を可能としている。
【0012】
給湯コントローラ40は、図示しない周知の算術論理演算回路を構成するCPU,RAM,ROMと、各種センサからの信号を入力する入力インタフェースと、各種アクチュエータに駆動信号を出力する出力インタフェース等から構成される。また、設定温度の設定等の外部操作を行なうための給湯リモコン50が接続される。
【0013】
給湯リモコン50は設定温度を設定するための温度設定スイッチを備える。そして給湯コントローラ40は、出湯部20への通水を検出することによりバーナ22の燃焼動作を開始させ、出湯部20の出湯温度を給湯リモコン50で設定された設定温度に近づけるようにバーナ22の燃焼量を制御するといった出湯温制御を行なう。
【0014】
水洗トイレ90は、図示しないレバーの操作により貯水タンク91底面に設けられる図示しない栓を一時的に開いて貯水タンク91に溜めた水を流し水として便器に排水する構成で、貯水タンク91上部から手洗い用の水を注水すると共に貯水タンク91内に少量の水を供給する注水管92が設けられ、また貯水タンク91側面には残り湯を供給する残り湯供給路93が接続される。また注水管92の途中には、貯水タンク91内の水位の上昇に伴って上昇する浮玉に連動して流路面積を減少させ、所定水位まで上昇することで流路を完全に遮断する構成の周知のボールタップ94が設けられる。また、万が一ボールタップ94の故障により貯水タンク91への注水が停止しない場合にも貯水タンク91内の水が溢れ出すことを防ぐため、必要以上の水位の水を便器に流すオーバーフロー管95が設けられる。そして、注水管92からの水は手洗い用の水として注水された分がオーバーフロー管95内に流れ落ちて便器に排水されると共に、少量が貯水タンク91内に供給される。
【0015】
雑用水利用装置60は、水道管1に接続される水供給路61と外部出湯管2に接続される湯供給路62とを備え、これらの流路61,62には逆止弁63,64がそれぞれ設けられ、その下流側には流路を開閉する給水電磁弁65,給湯電磁弁66がそれぞれ設けられる。また、水供給路61の給水電磁弁65より上流側には給水分岐路67が分岐して形成され、水洗トイレ90の注水管92に手洗い水供給路96を介して接続される。また給水分岐路67には、注水管92からの注水流量を検出するためのタンク側流量センサ68が設けられる。一方、水供給路61と湯供給路62とはそれぞれの電磁弁65,66の下流側で合流し、逆止弁69を介して主流路70に接続される。また、往き流路5と主流路70とを接続する浴槽水供給路71が形成され、往き流路5の浴槽水供給路71との分岐部には、循環加熱部30からの浴槽水を浴槽3に戻す循環側A或は主流路70に流す供給側Bの何れかに切替える浴槽水切替弁72が設けられる。そして主流路70の下流側は、残り湯供給路93に接続されるタンク注湯路73と、洗濯機100に注湯するための洗濯注湯路74とに分岐され、タンク注湯路73には流路を開閉するタンク注湯電磁弁75が、また洗濯注湯路74には洗濯機100への注湯流量を検出するための洗濯機側流量センサ76がそれぞれ設けられる。また、これらを制御する注湯コントローラ77を備える。
【0016】
浴槽水切替弁72は通常循環側Aとなっており、循環加熱部30により浴槽3内の湯を循環して追い焚きする構成となっている。
【0017】
注湯コントローラ77は、図示しない周知の算術論理演算回路を構成するCPU,RAM,ROMと、各種センサからの信号を入力する入力インタフェースと、各種アクチュエータに駆動信号を出力する出力インタフェース等から構成される。注湯コントローラ77と給湯コントローラ40とは通信線78で接続され、給湯コントローラ40は注湯コントローラ77からの接点情報に基づいてポンプ32を駆動させる。
【0018】
また、注湯コントローラ77はタンク側流量センサ68による検出流量が所定の通水流量以上となることで通水ありと判断すると、貯水タンク91内の水の水位が低下した状態即ち貯水タンク91内の水が排水されたと判断し、その後検出流量が所定の止水流量以下となることで通水なしと判断すると、満水となったと判断する。また、満水になったと判断する前に検出流量の大きさに基づいて貯水タンク91内が所定水位まで上昇したかを判断する。即ち、貯水タンク91内の水位が上昇するほどボールタップ94により流路面積が減少されて流量が減少するため、検出流量の大きさによりおおよその水位を判断するのである。そして、こうした判断により貯水タンク91に残り湯を供給するタイミングをはかる。つまり、残り湯を供給するには単に流路を形成するだけでなくポンプ32を駆動させる必要があるため、貯水タンク91内の水の排水されたと判断した時点で残り湯の供給運転を開始するのである。そして、貯水タンク91内の水が満水になる手前の所定水位まで上昇したと判断した時点で残り湯の供給から水の供給に切り替え、満水になったと判断した時点で水の供給を停止する。このように貯水タンク91内が満水となる前に残り湯の供給から水の供給に切り替えることで、配管内に残り湯が残ることを防いで水あか等により詰まりにくくする。また、所定水位まで上昇したと判断した時点で供給を切り替えることで、切り替えが早すぎることにより上水を多量に浪費してしまうことを防ぐことができると共に、切り替えが遅すぎることにより残り湯が残ってしまうことを防ぐことができる。
【0019】
また、注湯コントローラ77には洗濯機100への注湯モードの切替えといった外部操作を行なうための洗濯注湯リモコン79が接続される。この洗濯注湯リモコン79には、洗濯機100への注湯パターンを所定の注湯モードから選択操作するための操作スイッチが設けられる。そして、注湯コントローラ77は洗濯機側流量センサ76の検出流量に基づき洗濯機100の受水弁101の開閉状態を検出することで運転状況を判断し、洗濯注湯リモコン79で選択された注湯モードに基づいて水,湯,残り湯の3種類の供給源を切り替えるといった注湯制御を行なう。その際、タンク注湯電磁弁75を閉弁状態とすることで洗濯注湯運転により貯水タンク91側に注湯されてしまうことを防ぐ。
【0020】
次に、注湯コントローラ77の行なう貯水タンク91への残り湯供給制御処理について、図2のフローチャートを用いて説明する。
タンク側流量センサ68の検出流量により通水ありと判断すると(S1:YES)、ポンプ32を駆動させると共に浴槽水切替弁72を供給側Bに切り替え(S2)、またタンク注湯電磁弁75を開弁する(S3)。そのため貯水タンク91には注水管92からの注水に加え、残り湯供給路93からの残り湯の供給が開始される。その後、貯水タンク91内の水位の上昇に伴いタンク側流量センサ68の検出流量が所定値以下まで減少すると(S4:YES)、給水電磁弁65を開弁すると共に浴槽水切替弁72を循環側Aに切り替え、ポンプ32の駆動を停止させて(S5)、残り湯供給路93からの残り湯の供給を水の供給に切り替える。その後、タンク側流量センサ68の検出流量により通水なしと判断した時点で(S6:YES)、給水電磁弁65を閉弁すると共にタンク注湯電磁弁73を閉弁して(S7)水の供給を終了させる。
【0021】
上述したような制御により、水洗トイレ90で図示しないレバーを操作すると、貯水タンク91底面の図示しない栓が一時的に開いて貯水タンク91に溜まっていた水が便器に排水される。そして、この水位の低下により注水管92からの注水が開始され、間もなく残り湯供給路93からの残り湯の供給が開始される。その際、注水管92からの上水は手洗い用の分が上部から注水されて手洗いに使用された後オーバーフロー管95内に流れ落ちて便器に排水されると共に、少量が貯水タンク91内に供給される。一方、残り湯供給路93からの残り湯は便器には流れず貯水タンク91内に溜まっていく。従って、便器には手洗い後の水のみが継続して排水され、最終的に便器内に残ることとなる。その後、貯水タンク91内の水が満水となる手前の所定水位まで上昇すると残り湯供給路93からの残り湯の供給が水の供給に切り替わる。そして貯水タンク91内が満水となってボールタップ94により流路が閉じられ注水管92からの注水が停止すると、残り湯供給路93からの水の供給も停止される。
【0022】
以上説明したように、第1実施例の雑用水利用装置60によれば、貯水タンク91内の水の一部を残り湯でまかなって節水することができ、また貯水タンク91が満水となる前に残り湯供給路93からの供給を水に切り替えることで、残り湯供給路93の配管内に残り湯が残ることを防いで水あか等の付着により詰まりにくくすることができる。更に、必要な上水は雑用水と別経路で供給する構成により、手洗い用の水に上水を使用することができるため衛生的であり、また便器内に最終的に残る水は残り湯ではなく手洗い後の水であるため臭いの発生を防ぐことができ、しかも手洗い後の水を利用するため節水効果が高い。加えて、貯水タンク91内の水位をタンク側流量センサ68の検出流量に基づいて比較的正確に判断することができるため、できるだけ多くの残り湯を供給すると共に配管内に残り湯が残ることを防ぐ適切なタイミングで残り湯の供給から水の供給への切り替えを行なうことができる。しかも、タンク側流量センサ68の検出流量の大きさにより水位を判断する構成により貯水タンク91内に水位センサ等を設ける必要がなく、貯水タンク91から離れた場所で検出することができるため安価に構成することができる。
【0023】
次に、第2実施例について説明する。図3は第2実施例としての残り湯利用システムの概略構成図である。基本的な構成は第1実施例の残り湯利用システム(図1)と同一であるが、雑用水利用装置60が洗濯機90への注湯機能を備えていない点と、水洗トイレ90の貯水タンク91上部に手洗い用の水を注水する注水管92を備えていない点とで異なる。その他重複する部分に関しては同一符号を付してその説明を省略する。
【0024】
水洗トイレ90の貯水タンク91には残り湯を供給する残り湯供給路93が接続される。そして、残り湯供給路93からの残り湯はボールタップ94を介して供給され、更にその下流側で貯水タンク91内及びオーバーフロー管95内に分岐して供給される。
【0025】
雑用水利用装置60は、水道管1に接続された水供給路61を備え、水供給路61には逆止弁63が設けられる。また、往き流路5と水供給路61とを接続する浴槽水供給路71が形成され、往き流路5と浴槽水供給路71との分岐部には、循環加熱部30からの浴槽水を浴槽3に戻す循環側A或は主流路70に流す供給側Bの何れかに切替える浴槽水切替弁72が設けられる。また、水供給路61と浴槽水供給路71との合流後の流路は貯水タンク91への残り湯供給路93に接続され、この流路には貯水タンク91への注水流量を検出するためのタンク側流量センサ68が設けられる。また合流部には、貯水タンク91への供給経路を水供給路61とする水側C或いは浴槽水供給路71とする残り湯側Dのいずれかに切り替える供給源切替弁80が設けられる。また、これらを制御する注湯コントローラ77を備える。
【0026】
供給源切替弁80は通常水側Cとなっており、貯水タンク91の水が排水されて水位が下がると水供給路61からの水が残り湯供給路93を介して供給される。
【0027】
次に、注湯コントローラ77の行なう貯水タンク91への残り湯供給制御処理について、図4のフローチャートを用いて説明する。
タンク側流量センサ68の検出流量により通水ありと判断すると(S1:YES)、ポンプ32を駆動させると共に浴槽水切替弁72を供給側Bに切り替え(S2)、また供給源切替弁80を残り湯側Dに切り替えて(S3)、残り湯供給路93からの水の供給を残り湯の供給に切り替える。その後、貯水タンク91内の水位の上昇に伴いタンク側流量センサ68の検出流量が所定値以下まで減少すると(S4:YES)、供給源切替弁80を水側Cに切り替えると共に浴槽水切替弁72を循環側Aに切り替え、ポンプ32の駆動を停止させて(S5)、残り湯供給路93からの残り湯の供給を水の供給に切り替える。その後、タンク側流量センサ68の検出流量により通水なしと判断した時点で(S6:YES)制御を終了する。
【0028】
上述したような制御により、水洗トイレ90で図示しないレバーを操作すると、貯水タンク91底面の図示しない栓が一時的に開いて貯水タンク91に溜まっていた水が便器に排水される。そして、この水位の低下により残り湯供給路93から注水が開始され、間もなく残り湯の供給に切り替わる。その際、残り湯供給路93からの残り湯は貯水タンク91内及びオーバーフロー管95内に分岐して供給される。その後、貯水タンク91内の水が満水となる手前の所定水位まで上昇すると残り湯供給路93からの残り湯の供給が上水の供給に切り替わる。従って、残り湯供給路93からの上水は貯水タンク91内及びオーバーフロー管95内に分岐して供給される。そして貯水タンク91内が満水となると、ボールタップ94により流路が閉じられて注水が停止される。
【0029】
以上説明したように、第2実施例の雑用水利用装置60によれば、貯水タンク91内の水の一部を残り湯でまかなって節水することができ、また貯水タンク91が満水となる前に残り湯供給路93からの供給を水に切り替えることで、残り湯供給路93の配管内に残り湯が残ることを防いで水あか等の付着により詰まりにくくすることができる。しかも、タンク側流量センサ68の検出流量が所定値以下となると水の供給に切り替える構成のため、残り湯供給に切り替えた際に浴槽3内に残り湯がなかった場合にも水の供給に即座に切り替わることとなり、浴槽3内の残り湯の有無を判断する必要がない。また、水の供給に切り替えることでオーバーフロー管95から便器内に上水が排水されるため、便器内に最終的に残る水を上水にして臭いの発生を防ぐ効果も期待できる。加えて、貯水タンク91内の水位をタンク側流量センサ68の検出流量に基づいて比較的正確に判断することができるため、できるだけ多くの残り湯を供給すると共に配管内に残り湯が溜まることを防ぐ適切なタイミングで残り湯の供給から水の供給への切り替えを行なうことができる。しかも、タンク側流量センサ68の検出流量の大きさにより水位を判断する構成により貯水タンク91内に水位センサ等を設ける必要がなく、貯水タンク91から離れた場所で検出することができるため安価に構成することができる。
【0030】
尚、第1実施例及び第2実施例において残り湯の供給から水の供給に切り替えるタイミングをタンク側流量センサ68の検出流量の大きさに基づいて判断したが、これに限ったものではなく、例えば検出流量の積算値に基づいて判断してもよい。また、タイマにより判断してもよい。
また、第1実施例では水供給路61からの水を水洗トイレ90の注水管92に供給したが、これに限ったものではなく、例えば湯供給路62からの湯を供給する構成とすれば、手洗いやシャワートイレに温水を使用して冬場でも快適に使用することができる。
また、第1実施例及び第2実施例ではタンク側流量センサ68の検出流量に基づいて通水の有無を判断したが、これに限ったものではなく、単に通水の有無を判断する水流スイッチを用いてもよい。
また、第2実施例では貯水タンク91への供給経路を供給源切替弁80により水或いは浴槽水に切り替えたが、これに限ったものではなく、例えば供給源切替弁80を用いず単に流路を合流したものとし、水供給路61からの水の流量を水ガバナ等を用いて小さく絞った構成としてもよい。そして、通水ありと検出することで浴槽水切替弁72を供給側Bに切り替え、水供給路61からの少量の水に浴槽水を混合して供給する構成とすれば、切替弁を減らして安価にすることができる。
【0031】
以上本発明の実施例について説明したが、本発明はこうした実施例に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。
【0032】
【発明の効果】
以上詳述したように、本発明の請求項1記載の雑用水利用装置によれば、貯水タンク内に雑用水を供給することで節水効果を得ることができ、しかも貯水タンク内の貯水量が満水となる前に雑用水の供給を上水の供給に切り替える構成により、雑用水供給路内の雑用水を上水により排出して残らないようにすることができるため、汚れを付着しにくくすることができる。
【0033】
更に、本発明の請求項2記載の雑用水利用装置によれば、流量検出装置の検出流量が所定値以下まで減少した時点で雑用水の供給を上水の供給に切り替えるといった簡単な構成により、雑用水供給路の雑用水を排出する必要最小限の水量が供給されるようなタイミングで切り替えることができるため、汚れの付着を防止しつつ十分な節水効果を得ることができる。しかも、通水流量を検出する構成により貯水タンク内に水位センサ等を設ける必要がなく、貯水タンクから離れた場所で検出することが可能となるため安価に構成することができる。
【図面の簡単な説明】
【図1】第1実施例としての雑用水利用装置を備えた残り湯利用システムの概略構成図である。
【図2】注湯コントローラの行なう貯水タンクへの残り湯供給制御処理を表わすフローチャートである。
【図3】第2実施例としての雑用水利用装置を備えた残り湯利用システムの概略構成図である。
【図4】注湯コントローラの行なう貯水タンクへの残り湯供給制御処理を表わすフローチャートである。
【符号の説明】
60…雑用水利用装置、 61…水供給路、 62…湯供給路、
65…給水電磁弁、 66…給湯電磁弁、 68…タンク側流量センサ、
77…注湯コントローラ、 90…水洗トイレ、 91…貯水タンク、
92…注水管、 93…残り湯供給路、 94…ボールタップ。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a miscellaneous water utilization apparatus that utilizes miscellaneous water for a flush toilet.
[0002]
[Prior art]
Conventionally, a miscellaneous water utilization device that utilizes miscellaneous water for a flush toilet is known. For example, in the case of using the remaining hot water in the bathtub, a bathtub water supply passage is formed to supply bathtub water from the bathtub to the water storage tank of the flush toilet, and the bathtub water is fed into the water storage tank to make the flush toilet flush water. Water can be saved using bathtub water.
[0003]
[Problems to be solved by the invention]
However, in the configuration as described above, there is a problem that the bathtub water is always accumulated in the pipe of the bathtub water supply path, and water scales or the like are easily attached and clogged.
The purpose of the miscellaneous water utilization apparatus of the present invention is to solve the above-mentioned problems and to prevent adhesion of water scale and the like in the pipe.
[0004]
[Means for Solving the Problems]
The miscellaneous water utilization apparatus according to claim 1 of the present invention for solving the above-described problems is
A miscellaneous water supply channel that serves as a channel for supplying miscellaneous water such as remaining hot water in the bathtub to the water storage tank of the flush toilet;
A water supply path that becomes a flow path for supplying clean water and merges with the miscellaneous water supply path;
Use detection means for detecting the use of water accumulated in the water storage tank;
Based on the water use detection by the use detection means, miscellaneous water supply means for starting the supply of miscellaneous water to the water storage tank via the miscellaneous water supply path,
Water storage state detecting means for detecting the water storage state in the water storage tank;
When the water storage state detecting means detects that the amount of water stored in the water storage tank has risen to a predetermined water level before full water, the supply of miscellaneous water from the miscellaneous water supply channel is changed to the upper water supply channel. And a supply switching means for switching to the supply of clean water.
[0005]
[Means for Solving the Problems]
The miscellaneous water utilization apparatus according to claim 2 of the present invention for solving the above-mentioned problems is the miscellaneous water utilization apparatus according to claim 1,
The water storage state detection means comprises a flow rate detection device for detecting the flow rate of water flowing into the water storage tank;
The gist of the supply switching means is to switch the supply of miscellaneous water to the supply of clean water from the clean water supply path when the detected flow rate of the flow rate detecting device decreases to a predetermined value or less.
[0006]
The miscellaneous water use device according to claim 1 of the present invention having the above-described configuration supplies the miscellaneous water to the water storage tank via the miscellaneous water supply path based on the use detection of the water accumulated in the water storage tank of the flush toilet. Start. And by switching the supply of miscellaneous water from the miscellaneous water supply path to the supply of clean water before the amount of water stored in the water storage tank becomes full, the miscellaneous water remains in the miscellaneous water supply path even after the miscellaneous water is supplied. This can prevent the dirt from being attached.
[0007]
Furthermore, the miscellaneous water utilization device according to claim 2 of the present invention having the above-described configuration is provided with a flow rate detection device in which the water storage state detection means detects a flow rate of water flowing into the water storage tank, and the detected flow rate is less than a predetermined value. When it decreases, supply of miscellaneous water is switched to supply of clean water. Usually, the water storage tank of a flush toilet is provided with a ball tap that is configured to reduce the flow channel area in conjunction with a floating ball that rises as the water level rises and to block the flow channel completely by rising to a predetermined water level. Therefore, an increase in the amount of stored water can be determined based on a decrease in the detected flow rate of the flow rate detection device. Therefore, it is necessary to discharge the miscellaneous water in the miscellaneous water supply path by setting the predetermined value by switching the supply of the miscellaneous water to the supply of clean water when the detected flow rate of the flow rate detecting device decreases to a predetermined value or less. It is possible to switch at a timing such that a minimum amount of water is supplied.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In order to further clarify the configuration and operation of the present invention described above, preferred embodiments of the miscellaneous water utilization apparatus of the present invention will be described below.
FIG. 1 is a schematic configuration diagram of a remaining hot water utilization system provided with a miscellaneous water utilization apparatus as a first embodiment of the present invention. This system is roughly divided into a bath tub 10 with a hot water heater that circulates and heats bathtub water, and a miscellaneous water use device 60 that supplies remaining hot water to the flush toilet 90 and the washing machine 100. .
[0009]
The hot water heater-equipped bath 10 includes a hot water outlet 20 that heats and passes hot water, a circulating heater 30 that circulates and recirculates the hot water in the bathtub 3, and a hot water controller 40 that controls them. Consists of.
[0010]
The hot water outlet 20 includes a water supply channel 21 connected to the water pipe 1, a heat exchanger 23 that heats water supplied from the water supply channel 21 by the combustion heat of the burner 22, and hot water heated by the heat exchanger 23. A hot water supply passage 24 serving as a flow path for feeding out is provided, and the hot water supply passage 24 is connected to an external hot water supply pipe 2 for supplying hot water to a kitchen or a shower.
[0011]
The circulation heating unit 30 includes a circulation path 31 connected to the bathtub 3 via the flow path 4 and the forward flow path 5, a pump 32 for circulating the bathtub water to the circulation path 31, and the bathtub water to be circulated. And a heat exchanger 34 that heats the burner 33 by the combustion heat of the burner 33. Further, the hot water outlet 24 of the hot water outlet 20 and the circulation path 31 of the circulating heating part 30 are connected by a drop channel 36 provided with a water supply valve 35 so that hot water can be discharged to the bathtub 3.
[0012]
The hot water controller 40 includes a CPU, RAM, and ROM that form a well-known arithmetic logic circuit (not shown), an input interface that inputs signals from various sensors, an output interface that outputs drive signals to various actuators, and the like. . In addition, a hot water remote controller 50 for performing an external operation such as setting of a set temperature is connected.
[0013]
The hot water remote controller 50 includes a temperature setting switch for setting a preset temperature. Then, the hot water controller 40 starts the combustion operation of the burner 22 by detecting the flow of water to the hot water outlet 20, so that the hot water temperature of the hot water outlet 20 approaches the set temperature set by the hot water remote controller 50. Hot water temperature control is performed to control the amount of combustion.
[0014]
The flush toilet 90 has a configuration in which a stopper (not shown) provided on the bottom surface of the water storage tank 91 is temporarily opened by operating a lever (not shown), and the water stored in the water storage tank 91 is drained into the toilet as running water. A water injection pipe 92 for injecting water for hand washing and supplying a small amount of water into the water storage tank 91 is provided, and a remaining hot water supply passage 93 for supplying the remaining hot water is connected to the side surface of the water storage tank 91. In the middle of the water injection pipe 92, the flow path area is reduced in conjunction with the floating ball that rises as the water level in the water storage tank 91 rises, and the flow path is completely blocked by rising to a predetermined water level. A known ball tap 94 is provided. In addition, in order to prevent water in the water storage tank 91 from overflowing even if water injection into the water storage tank 91 is not stopped due to a failure of the ball tap 94, an overflow pipe 95 is provided for flowing water at a level higher than necessary to the toilet. . Then, the water poured from the water injection pipe 92 is poured into the overflow pipe 95 as water for hand washing and drained into the toilet bowl, and a small amount is supplied into the water storage tank 91.
[0015]
The miscellaneous water utilization device 60 includes a water supply path 61 connected to the water pipe 1 and a hot water supply path 62 connected to the external hot water discharge pipe 2, and check valves 63 and 64 are provided in these flow paths 61 and 62. The water supply electromagnetic valve 65 and the hot water supply electromagnetic valve 66 for opening and closing the flow path are respectively provided on the downstream side. Further, a water supply branch path 67 is formed on the upstream side of the water supply electromagnetic valve 65 in the water supply path 61, and is connected to the water injection pipe 92 of the flush toilet 90 via the hand-washing water supply path 96. The water supply branch path 67 is provided with a tank-side flow rate sensor 68 for detecting the flow rate of water injected from the water injection pipe 92. On the other hand, the water supply path 61 and the hot water supply path 62 merge on the downstream side of the electromagnetic valves 65 and 66, and are connected to the main flow path 70 via the check valve 69. Further, a bathtub water supply path 71 that connects the forward flow path 5 and the main flow path 70 is formed, and the bathtub water from the circulation heating unit 30 is bathed at a branch portion of the forward flow path 5 with the bathtub water supply path 71. A bathtub water switching valve 72 is provided for switching to either the circulation side A returning to 3 or the supply side B flowing through the main flow path 70. The downstream side of the main flow path 70 is branched into a tank pouring path 73 connected to the remaining hot water supply path 93 and a washing pouring path 74 for pouring the washing machine 100 into the tank pouring path 73. The tank pouring electromagnetic valve 75 for opening and closing the flow path is provided, and the washing pouring passage 74 is provided with a washing machine side flow sensor 76 for detecting the pouring flow rate to the washing machine 100. Moreover, a pouring controller 77 for controlling these is provided.
[0016]
The bathtub water switching valve 72 is normally on the circulation side A, and has a configuration in which the hot water in the bathtub 3 is circulated by the circulation heating unit 30 to follow up.
[0017]
The pouring controller 77 includes a CPU, RAM, and ROM that form a well-known arithmetic logic circuit (not shown), an input interface that inputs signals from various sensors, an output interface that outputs drive signals to various actuators, and the like. The The hot water controller 77 and the hot water controller 40 are connected by a communication line 78, and the hot water controller 40 drives the pump 32 based on contact information from the hot water controller 77.
[0018]
Further, when the pouring controller 77 determines that there is water flow when the flow rate detected by the tank-side flow rate sensor 68 is equal to or higher than a predetermined water flow rate, the state in which the water level in the water storage tank 91 is lowered, that is, in the water storage tank 91. When it is determined that the water has been drained, and then the detected flow rate is equal to or lower than the predetermined water stop flow rate, it is determined that there is no water flow. Further, before determining that the water is full, it is determined whether the water storage tank 91 has risen to a predetermined water level based on the magnitude of the detected flow rate. That is, as the water level in the water storage tank 91 rises, the channel area is reduced by the ball tap 94 and the flow rate is reduced, so the approximate water level is determined based on the magnitude of the detected flow rate. And the timing which supplies remaining hot water to the water storage tank 91 by such judgment is measured. That is, in order to supply the remaining hot water, it is necessary not only to form a flow path but also to drive the pump 32. Therefore, when it is determined that the water in the water storage tank 91 has been drained, the remaining hot water supply operation is started. It is. Then, when it is determined that the water in the water storage tank 91 has risen to a predetermined water level before the water becomes full, the remaining hot water supply is switched to the water supply, and when it is determined that the water is full, the water supply is stopped. Thus, by switching from the supply of the remaining hot water to the supply of water before the inside of the water storage tank 91 is full, the remaining hot water is prevented from remaining in the pipe, and it is difficult to be clogged with water. In addition, by switching the supply when it is determined that the water level has risen to a predetermined level, it is possible to prevent a large amount of water from being wasted due to switching too early, and remaining hot water due to switching too late. It can be prevented from remaining.
[0019]
The pouring controller 77 is connected to a washing pouring remote controller 79 for performing an external operation such as switching the pouring mode to the washing machine 100. The washing pouring remote controller 79 is provided with an operation switch for selecting and operating a pouring pattern for the washing machine 100 from a predetermined pouring mode. Then, the pouring controller 77 determines the operating state by detecting the open / closed state of the water receiving valve 101 of the washing machine 100 based on the detected flow rate of the washing machine side flow sensor 76, and the pouring selected by the washing pouring remote controller 79. The pouring control is performed such that three types of supply sources of water, hot water, and remaining hot water are switched based on the hot water mode. At that time, the tank pouring electromagnetic valve 75 is closed to prevent the hot water from being poured into the water storage tank 91 by the washing pouring operation.
[0020]
Next, the remaining hot water supply control process to the water storage tank 91 performed by the hot water controller 77 will be described with reference to the flowchart of FIG.
If it is determined that there is water flow based on the detected flow rate of the tank-side flow rate sensor 68 (S1: YES), the pump 32 is driven, the bathtub water switching valve 72 is switched to the supply side B (S2), and the tank pouring electromagnetic valve 75 is turned on. The valve is opened (S3). Therefore, in addition to water injection from the water injection pipe 92, supply of the remaining hot water from the remaining hot water supply path 93 is started to the water storage tank 91. Thereafter, when the detected flow rate of the tank-side flow rate sensor 68 decreases to a predetermined value or less as the water level in the water storage tank 91 rises (S4: YES), the water supply electromagnetic valve 65 is opened and the bathtub water switching valve 72 is set to the circulation side. Switch to A, stop driving the pump 32 (S5), and switch the remaining hot water supply from the remaining hot water supply path 93 to water supply. Thereafter, when it is determined that there is no water flow based on the detected flow rate of the tank-side flow rate sensor 68 (S6: YES), the water supply electromagnetic valve 65 is closed and the tank pouring electromagnetic valve 73 is closed (S7) End the supply.
[0021]
When a lever (not shown) is operated in the flush toilet 90 by the control as described above, a stopper (not shown) on the bottom surface of the water storage tank 91 is temporarily opened, and the water accumulated in the water storage tank 91 is drained to the toilet. And by this fall of the water level, water injection from the water injection pipe 92 is started, and supply of the remaining hot water from the remaining hot water supply passage 93 is started soon. At that time, the water from the water injection pipe 92 is poured from the upper part for hand washing and used for hand washing, then flows down into the overflow pipe 95 and drains into the toilet, and a small amount is supplied into the water storage tank 91. The On the other hand, the remaining hot water from the remaining hot water supply passage 93 does not flow into the toilet but accumulates in the water storage tank 91. Therefore, only the water after hand-washing is continuously drained into the toilet and finally remains in the toilet. Thereafter, when the water in the water storage tank 91 rises to a predetermined water level before it becomes full, the supply of the remaining hot water from the remaining hot water supply path 93 is switched to the supply of water. When the inside of the water storage tank 91 is full and the flow path is closed by the ball tap 94 and water injection from the water injection pipe 92 is stopped, the supply of water from the remaining hot water supply passage 93 is also stopped.
[0022]
As described above, according to the miscellaneous water utilization apparatus 60 of the first embodiment, a part of the water in the water storage tank 91 can be saved with remaining hot water, and before the water storage tank 91 is full. In addition, by switching the supply from the remaining hot water supply path 93 to water, it is possible to prevent the remaining hot water from remaining in the piping of the remaining hot water supply path 93 and to prevent clogging due to adhesion of scales or the like. Furthermore, the necessary water supply is supplied separately from the miscellaneous water, so that it can be used for hand-washing water, so it is hygienic, and the remaining water in the toilet bowl is the remaining hot water. Since it is water after hand washing, it is possible to prevent the generation of odor, and the water saving effect is high because water after hand washing is used. In addition, since the water level in the water storage tank 91 can be determined relatively accurately based on the detected flow rate of the tank-side flow rate sensor 68, it is possible to supply as much remaining hot water as possible and to leave remaining hot water in the piping. Switching from supply of remaining hot water to supply of water can be performed at an appropriate timing to prevent. Moreover, it is not necessary to provide a water level sensor or the like in the water storage tank 91 due to the configuration in which the water level is determined based on the magnitude of the detected flow rate of the tank side flow rate sensor 68, and it can be detected at a location away from the water storage tank 91. Can be configured.
[0023]
Next, a second embodiment will be described. FIG. 3 is a schematic configuration diagram of a remaining hot water utilization system as a second embodiment. Although the basic configuration is the same as that of the remaining hot water use system (FIG. 1) of the first embodiment, the miscellaneous water use device 60 does not have a function of pouring water into the washing machine 90 and the water stored in the flush toilet 90. The difference is that a water injection pipe 92 for injecting water for hand washing is not provided in the upper part of the tank 91. Other overlapping parts are denoted by the same reference numerals and description thereof is omitted.
[0024]
A remaining hot water supply path 93 for supplying remaining hot water is connected to the water storage tank 91 of the flush toilet 90. Then, the remaining hot water from the remaining hot water supply passage 93 is supplied via the ball tap 94, and further branched and supplied into the water storage tank 91 and the overflow pipe 95 on the downstream side.
[0025]
The miscellaneous water utilization device 60 includes a water supply path 61 connected to the water pipe 1, and the water supply path 61 is provided with a check valve 63. Also, a bathtub water supply path 71 that connects the forward flow path 5 and the water supply path 61 is formed, and the branch water between the forward flow path 5 and the bathtub water supply path 71 is supplied with bathtub water from the circulation heating unit 30. There is provided a bathtub water switching valve 72 for switching to either the circulation side A returning to the bathtub 3 or the supply side B flowing through the main flow path 70. In addition, the flow path after the merge of the water supply path 61 and the bathtub water supply path 71 is connected to the remaining hot water supply path 93 to the water storage tank 91, in order to detect the flow rate of water injected into the water storage tank 91. The tank side flow rate sensor 68 is provided. In addition, a supply source switching valve 80 is provided at the junction to switch the water supply path 61 to either the water side C that uses the water supply path 61 or the remaining hot water side D that uses the bathtub water supply path 71. Moreover, a pouring controller 77 for controlling these is provided.
[0026]
The supply source switching valve 80 is normally on the water side C. When the water in the water storage tank 91 is drained and the water level drops, the water from the water supply path 61 is supplied through the remaining hot water supply path 93.
[0027]
Next, the remaining hot water supply control process to the water storage tank 91 performed by the pouring controller 77 will be described with reference to the flowchart of FIG.
If it is determined that there is water flow based on the detected flow rate of the tank side flow rate sensor 68 (S1: YES), the pump 32 is driven and the bathtub water switching valve 72 is switched to the supply side B (S2), and the supply source switching valve 80 remains. Switching to the hot water side D (S3), the supply of water from the remaining hot water supply path 93 is switched to the supply of remaining hot water. Thereafter, when the detected flow rate of the tank-side flow rate sensor 68 decreases to a predetermined value or less as the water level in the water storage tank 91 rises (S4: YES), the supply source switching valve 80 is switched to the water side C and the bathtub water switching valve 72 is switched. Is switched to the circulation side A, the drive of the pump 32 is stopped (S5), and the supply of the remaining hot water from the remaining hot water supply path 93 is switched to the supply of water. Thereafter, when it is determined that there is no water flow based on the detected flow rate of the tank-side flow rate sensor 68 (S6: YES), the control is terminated.
[0028]
When a lever (not shown) is operated in the flush toilet 90 by the control as described above, a stopper (not shown) on the bottom surface of the water storage tank 91 is temporarily opened, and the water accumulated in the water storage tank 91 is drained to the toilet. And by this fall of a water level, water injection is started from the remaining hot water supply path 93, and it switches to supply of remaining hot water soon. At that time, the remaining hot water from the remaining hot water supply passage 93 is branched and supplied into the water storage tank 91 and the overflow pipe 95. Thereafter, when the water in the water storage tank 91 rises to a predetermined water level before the water becomes full, the supply of the remaining hot water from the remaining hot water supply passage 93 is switched to the supply of clean water. Accordingly, the clean water from the remaining hot water supply passage 93 is branched and supplied into the water storage tank 91 and the overflow pipe 95. When the inside of the water storage tank 91 becomes full, the flow path is closed by the ball tap 94 and water injection is stopped.
[0029]
As described above, according to the miscellaneous water use device 60 of the second embodiment, a part of the water in the water storage tank 91 can be saved with remaining hot water, and before the water storage tank 91 is full. In addition, by switching the supply from the remaining hot water supply path 93 to water, it is possible to prevent the remaining hot water from remaining in the piping of the remaining hot water supply path 93 and to prevent clogging due to adhesion of scales or the like. In addition, when the flow rate detected by the tank-side flow sensor 68 becomes a predetermined value or less, the supply is switched to the supply of water. Therefore, even when there is no remaining hot water in the bathtub 3 when switching to the remaining hot water supply, the supply of water is immediately performed. It is not necessary to determine whether there is any remaining hot water in the bathtub 3. Further, since the water is drained from the overflow pipe 95 into the toilet bowl by switching to the water supply, the effect of preventing the generation of odor by using the water finally remaining in the toilet bowl as the upper water can be expected. In addition, since the water level in the water storage tank 91 can be determined relatively accurately based on the detected flow rate of the tank-side flow sensor 68, it is possible to supply as much remaining hot water as possible and to collect the remaining hot water in the pipe. Switching from supply of remaining hot water to supply of water can be performed at an appropriate timing to prevent. Moreover, it is not necessary to provide a water level sensor or the like in the water storage tank 91 due to the configuration in which the water level is determined based on the magnitude of the detected flow rate of the tank side flow rate sensor 68, and it can be detected at a location away from the water storage tank 91. Can be configured.
[0030]
In the first embodiment and the second embodiment, the timing for switching from the supply of remaining hot water to the supply of water is determined based on the magnitude of the detected flow rate of the tank-side flow rate sensor 68, but is not limited to this. For example, the determination may be made based on the integrated value of the detected flow rate. Further, it may be determined by a timer.
In the first embodiment, the water from the water supply path 61 is supplied to the water injection pipe 92 of the flush toilet 90. However, the present invention is not limited to this. For example, the hot water from the hot water supply path 62 is supplied. Can be used comfortably even in winter by using warm water for hand washing and shower toilets.
In the first and second embodiments, the presence / absence of water flow is determined based on the flow rate detected by the tank-side flow rate sensor 68. However, the present invention is not limited to this. May be used.
In the second embodiment, the supply path to the water storage tank 91 is switched to water or bathtub water by the supply source switching valve 80. However, the present invention is not limited to this. For example, the flow path without using the supply source switching valve 80 is simply used. The flow rate of water from the water supply path 61 may be reduced by using a water governor or the like. And if it is set as the structure which switches the bathtub water switching valve 72 to the supply side B by detecting that there exists water flow, mixes and supplies bathtub water to the small amount of water from the water supply path 61, a switching valve will be reduced. It can be made cheap.
[0031]
Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention.
[0032]
【The invention's effect】
As described above in detail, according to the miscellaneous water utilization device according to claim 1 of the present invention, a water-saving effect can be obtained by supplying miscellaneous water into the water storage tank, and the amount of water stored in the water storage tank can be reduced. By switching the supply of miscellaneous water to the supply of clean water before it is full, it is possible to prevent the miscellaneous water in the miscellaneous water supply path from being discharged by the clean water, so that it is difficult to adhere dirt. be able to.
[0033]
Furthermore, according to the miscellaneous water utilization device according to claim 2 of the present invention, by a simple configuration such as switching the supply of miscellaneous water to the supply of clean water when the detected flow rate of the flow rate detection device decreases to a predetermined value or less, Since it is possible to switch at a timing at which a necessary minimum amount of water for discharging the miscellaneous water in the miscellaneous water supply channel is supplied, it is possible to obtain a sufficient water saving effect while preventing adhesion of dirt. In addition, it is not necessary to provide a water level sensor or the like in the water storage tank due to the configuration for detecting the water flow rate, and it is possible to detect at a place away from the water storage tank, so that it can be configured at low cost.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a remaining hot water utilization system including a miscellaneous water utilization apparatus as a first embodiment.
FIG. 2 is a flowchart showing a remaining hot water supply control process to a water storage tank performed by a hot water controller.
FIG. 3 is a schematic configuration diagram of a remaining hot water utilization system including a miscellaneous water utilization apparatus as a second embodiment.
FIG. 4 is a flowchart showing a remaining hot water supply control process to a water storage tank performed by a hot water controller.
[Explanation of symbols]
60 ... miscellaneous water use device, 61 ... water supply path, 62 ... hot water supply path,
65 ... Water supply solenoid valve, 66 ... Hot water supply solenoid valve, 68 ... Tank side flow rate sensor,
77 ... Hot water controller, 90 ... Flush toilet, 91 ... Water storage tank,
92 ... Water injection pipe, 93 ... Remaining hot water supply path, 94 ... Ball tap.

Claims (2)

浴槽内の残り湯等の雑用水を水洗トイレの貯水タンクに供給する流路となる雑用水供給路と、
上水を供給するための流路となり上記雑用水供給路に合流される上水供給路と、
上記貯水タンク内に溜まった水の使用を検知する使用検知手段と、
上記使用検知手段による水使用検知に基づいて、上記雑用水供給路を介して上記貯水タンクへの雑用水の供給を開始する雑用水供給手段と、
上記貯水タンク内の貯水状態を検知する貯水状態検知手段と、
当該貯水状態検知手段により、上記貯水タンク内の貯水量が満水手前の所定水位にまで上昇したと検知された場合には、上記雑用水供給路からの雑用水の供給を、上記上水供給路からの上水の供給に切り替える供給切替手段と
を備えたことを特徴とする雑用水利用装置。
A miscellaneous water supply channel that serves as a channel for supplying miscellaneous water such as remaining hot water in the bathtub to the water storage tank of the flush toilet;
A water supply path that becomes a flow path for supplying clean water and merges with the miscellaneous water supply path;
Use detection means for detecting the use of water accumulated in the water storage tank;
Based on the water use detection by the use detection means, miscellaneous water supply means for starting the supply of miscellaneous water to the water storage tank via the miscellaneous water supply path,
A water storage state detecting means for detecting a water storage state in the water storage tank;
When the water storage state detection means detects that the amount of water stored in the water storage tank has risen to a predetermined water level before full water, the supply of miscellaneous water from the miscellaneous water supply channel is changed to the upper water supply channel. And a supply switching means for switching to supply of clean water from the miscellaneous water utilization apparatus.
上記貯水状態検出手段が上記貯水タンクへの通水流量を検出する流量検出装置を備え、
上記供給切替手段は上記流量検出装置の検出流量が所定値以下まで減少した時点で雑用水の供給を、上記上水供給路からの上水の供給に切り替えることを特徴とする請求項1記載の雑用水利用装置。
The water storage state detection means comprises a flow rate detection device for detecting the flow rate of water flowing into the water storage tank,
The supply switching means switches the supply of miscellaneous water to supply of clean water from the clean water supply path when the detected flow rate of the flow rate detecting device decreases to a predetermined value or less. Miscellaneous water use equipment.
JP06950398A 1998-03-03 1998-03-03 Miscellaneous water use equipment Expired - Fee Related JP4050376B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06950398A JP4050376B2 (en) 1998-03-03 1998-03-03 Miscellaneous water use equipment

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Application Number Priority Date Filing Date Title
JP06950398A JP4050376B2 (en) 1998-03-03 1998-03-03 Miscellaneous water use equipment

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Publication Number Publication Date
JPH11247244A JPH11247244A (en) 1999-09-14
JP4050376B2 true JP4050376B2 (en) 2008-02-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4672159B2 (en) * 2001-03-08 2011-04-20 リンナイ株式会社 Remaining hot water supply system
JP5829480B2 (en) * 2011-10-24 2015-12-09 三井住友建設株式会社 Toilet cleaning equipment

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