JP2004225822A - Hot-cold water mixing faucet, its connector and water heater having the same - Google Patents

Hot-cold water mixing faucet, its connector and water heater having the same Download PDF

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JP2004225822A
JP2004225822A JP2003015054A JP2003015054A JP2004225822A JP 2004225822 A JP2004225822 A JP 2004225822A JP 2003015054 A JP2003015054 A JP 2003015054A JP 2003015054 A JP2003015054 A JP 2003015054A JP 2004225822 A JP2004225822 A JP 2004225822A
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water
hot
water supply
channel
supply side
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Takayuki Furuya
貴行 古矢
Takanori Matsuno
孝則 松野
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Danle Co Ltd
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Danle Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot-cold mixing faucet easy in assembly, repair and maintenance. <P>SOLUTION: A temperature control unit 21 of a cassette type is formed with a temperature control mechanism 31 having a wax thermo element 10 and built in an internal case 30 for mixing cold water entering from a water inlet 35 and hot water entering from a water inlet 36 and delivering hot water of set temperature from an outlet 37. An outer case 20 has a water supply side channel 11, a hot water side channel 12 and a discharge side channel 13. The temperature control unit 21 is inserted and detachably fixed into the external case 20 to assemble the hot-cold water mixing faucet. In the completely assembled condition, the water inlet 35 is communicated with the water supply side channel 11, the water inlet 36 is communicated with the water supply side channel 12, and the outlet 37 is communicated with the discharge side channel 13. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は水（冷水）と湯を混合して設定温度の混合湯水（混合水ともいう）を送出する湯水混合栓およびその連結体並びにその湯水混合栓やその連結体を有する温水器に関するものである。
【０００２】
【背景技術】
高温の湯と水（冷水）を混合して設定温度の湯を送出する湯水混合栓は広く使用されている。この種の湯水混合栓を使用して湯を作り出す場合、例えば、風呂に使用する湯の温度、台所で使用する湯の温度、シャワーで使用する湯の温度はそれぞれ適温が異なり、そのため、共通の加熱手段を用いて作り出した給湯源の湯を使用温度の異なる場所に導いて適温の湯にして使用するためには、設定温度の設定値を異にした複数の湯水混合栓が配置されることになる。図１５はそのような複数の湯水混合栓を使用した給湯システムの一例を示す。
【０００３】
同図において、給水路１は給水路１ａと給水路１ｂに分岐され、給水路１ｂは加熱手段２の入水部に接続される。給水路１ｂを通して供給される冷水Ｃ（本明細書において冷水とは加熱されていない水を意味する）は加熱手段２によって加熱されて使用温度よりも高い高温の湯が作り出され、その湯は給湯路３を通して送出される。
【０００４】
給湯路３と給水路１ａとの間には湯水混合栓６ａ、６ｂ、６ｃが並列状に配置され、各湯水混合栓６ａ、６ｂ、６ｃには対応する分岐管４ａ、４ｂ、４ｃを介して給湯路３からの高温の湯が導入されるとともに、対応する分岐管５ａ、５ｂ、５ｃを介して給水路１ａからの冷水が導入されている。各湯水混合栓６ａ、６ｂ、６ｃは設定温度が互いに異なる値に設定されており、湯水混合栓６ａは高温の湯と冷水とを混合して設定温度の湯を作り出し、混合水路７を通してその混合温度Ｔ１の湯を例えば浴槽に供給する。同様に、湯水混合栓６ｂは混合水路７ｂを通して混合温度Ｔ２の湯を例えば台所に供給し、湯水混合栓６ｃは混合水路７ｃを通して混合温度Ｔ３の湯を例えばシャワーへ供給する。このような給湯システムを構築することにより、共通の加熱手段２を使用して、異なる場所で用途に応じた異なる適温の湯の使用が可能となる。
【０００５】
図１４は出願人が先に提案している従来の湯水混合栓の構成を示す。同図の（ａ）は正断面を示し、同図の（ｂ）はその側断面を示している。この図１４に示すようにケース８内の弁室９にはワックスサーモエレメント１０が収容されている。弁室９には給水側水路１１から入水口１５を通って冷水が入り込み、給湯側水路１２からは入水口１６を通って加熱手段２（図１５参照）からの高温の湯が入り込み、この弁室９内で高温の湯と冷水とが混合され、その混合湯水は吐出側水路１３から送出される。
【０００６】
ワックスサーモエレメント１０の配置位置は設定温度に対応した基準位置に調整設定されており、混合湯温が設定温度よりも上昇すると、ワックスサーモエレメント１０は図の下方へ膨張伸張し、ワックスサーモエレメント１０に固定されている弁体１４は入水口１５を開け、入水口１６を閉める方向に移動する結果、冷水の入水量が増加し、湯の入水量が減少するので、混合湯温は設定温度に調整される。混合湯温が設定温度よりも低下するとワックスサーモエレメント１０は図の上方向に縮小（収縮）するので、上記とは逆に、冷水の入水量が減少し、湯の入水量が増加するので、混合湯温は設定温度に調整される。設定温度の可変調整はワックスサーモエレメント１０の基準位置を可変調整（図１４において上下方向の位置調整）することによって達成される。
【０００７】
なお、図１４に示される湯水混合栓を図１５に示されるシステムに組み込む場合は給水側水路１１を分岐管５（５ａ、５ｂ、５ｃ）に接続し、給湯側水路１２を分岐管４（４ａ、４ｂ、４ｃ）に接続し、吐出側水路１３を混合水路７（７ａ、７ｂ、７ｃ）に接続することとなる。
【０００８】
【発明が解決しようとする課題】
しかしながら、図１５に示すような給湯システムを構築する場合、それぞれの湯水混合栓６ａ、６ｂ、６ｃを分岐管４ａ，４ｂ、４ｃ、５ａ、５ｂ、５ｃを形成して接続しなければならないため、外部配管が複雑となり、組立作業性が悪くコスト高となる上に、広い配管スペースを用意しなければならないという問題があった。
【０００９】
また、湯水混合栓の内部機構に異常が生じた場合にはその修理を行う必要があり、特に、ワックスサーモエレメントを用いた温調機構を用いた湯水混合栓の場合には、ワックスサーモエレメントの経年変化によるエレメント性能の劣化によって温調性能が低下するので、定期的にワックスサーモエレメントを交換する必要が生じる。このような修理やエレメント交換の保守作業を行う場合、例えば、図１４に示される止めカバー１７を取り外して行うことも考えられるが、ケース８内にはスプリング１８、１９と共に多くの部品が収容されているため、止めカバー１７を取り外すと、これらの部品がスプリングの付勢力を受けて飛び散る。
そのため、湯水混合栓をシステムに組み込んだままの状態で修理や保守の作業を行うことは事実上困難であり、その作業を行う場合は、湯水混合栓を配管から取り外して別の場所で行い、修理や保守の済んだ湯水混合栓を再び配管接続しなければならない。
【００１０】
通常、配管は湯水混合栓の接続部に雌雄の関係で嵌入しているので、湯水混合栓を取り外したり取り付けたりする場合は配管を湯水混合栓から引き抜く方向に変位させる必要がある。しかし、配管は剛性が大きく、大きな力を加えても取り外しに必要な引き抜き変位が得られず、結局は湯水混合栓の周りの配管を分解しなければならないという事態となり、湯水混合栓の取り外し、取り付けの作業が非常に大変であった。
【００１１】
本発明は上記従来の課題を解決するために成されたものであり、その目的は、取り付けのための複雑な配管構造を解消し（配管構造の簡易化を図り）、組立やメンテナンス（修理や保守）の作業性を改善し、設置の省スペース化およびコスト低減を図ることが可能な湯水混合栓およびその連結体を提供することにあり、さらにまた、これらの湯水混合栓やその連結体を有する温水器を提供することにある。
【００１２】
【課題を解決するための手段】
本発明は上記目的を達成するために次のような構成をもって課題を解決する手段としている。
【００１３】
すなわち、湯水混合栓の発明は、給湯側水路から入水する湯と給水側水路から入水する冷水とを混合して設定温度の混合水を吐出側水路へ吐出する調温機構を内蔵する湯水混合栓において、前記調温機構は内部ケースに内蔵されて温調機構と内部ケースとは一体化された温調ユニットとして構成され、前記内部ケースが外部ケース内に差し込み挿入されて温調ユニットは外部ケースに対して着脱自在に挿入装着されており、前記内部ケースには前記湯の入水口と前記冷水の入水口と前記混合水の出口とが形成され、外部ケースには前記給湯側水路と前記給水側水路と前記吐出側水路とが設けられるとともに、前記給湯側水路と前記湯の入水口とを連通する連通孔と、前記給水側水路と前記冷水の入水口とを連通する連通孔と、前記吐出側水路と前記混合水の出口とを連通する連通孔とが形成されている構成をもって課題を解決する手段としている。
【００１４】
好ましくは、給湯側水路と給水側水路は外部ケースの互いに反対側となる側壁に設け、給湯側水路の両端部は同一直線に沿った真直向きと成し、給水側水路の両端部も別の同一直線に沿った真直向きと成し、給湯側水路の両端部の向きは給水側水路の両端部の向きに平行と成す。
【００１５】
望ましくは、吐出側水路の向きは給湯側水路および給水側水路の向きに対し略直交する方向の方位とする。また、外部ケースにおける温調ユニットの挿入口は吐出側水路とは反対側となる位置に形成するとより効果的となる。
【００１６】
一形態として、給湯側水路と給水側水路と吐出側水路は成型又は鋳造又は鍛造により外部ケースと一体に形成される。また、給湯側水路と給水側水路と吐出側水路の少なくとも１つは外部ケースとは別個の水路形成部材により形成され、この水路形成部材は外部ケースに着脱自在に装着されていてもよい。給湯側水路および給水側水路のそれぞれの端部には管路接続部を形成するとよい。給湯側水路の出口部と給水側水路の出口部の一方又は両方の端部には閉止栓の装着部が形成され、残りの水路端部には管路接続部が形成されていてもよい。
【００１７】
管路接続部には外部配管又は流体機器を接続してよく、また、給水側水路と給湯側水路は貫通水路として構成し、給水側水路と給湯側水路の一方又は両方を主幹水路として機能させてもよい。
【００１８】
湯水混合栓の連結体の発明は湯水混合栓が複数連結されてなる湯水混合栓の連結体であって、隣り合う一方側の湯水混合栓の給水側水路の端部に他方側の湯水混合栓の給水側水路の端部が管路接続部を介して接続されるという如くして、複数の湯水混合栓の給水側水路が順次直列接続され、かつ、隣り合う一方側の湯水混合栓の給湯側水路の端部に他方側の湯水混合栓の給湯側水路の端部が管路接続部を介して接続されるという如くして、複数の湯水混合栓の給湯側水路が順次直列接続されている構成をもって課題を解決する手段としている。
【００１９】
また、湯水混合栓の連結体の別の発明は、給湯側水路および給水側水路のそれぞれの端部には管路接続部が形成されている前記湯水混合栓が１個以上連結されてその１個以上の連結の少なくとも片端に、別の湯水混合栓、すなわち、給湯側水路の出口部と給水側水路の出口部の一方又は両方の端部には閉止栓の装着部が形成され、残りの水路端部には管路接続部が形成されている湯水混合栓が連結されてなる湯水混合栓の連結体であって、隣り合う各湯水混合栓は管路接続部を介して給湯側水路同士、かつ、給水側水路同士が接続されて複数の湯水混合栓が連結され、連結端に位置する湯水混合栓の閉止栓の装着部には水路を閉止する閉止栓が装着されている構成をもって課題を解決する手段としている。
【００２０】
上記各連結体の発明において、管路接続部はその端面側から筒状のジョイント部材を嵌入する嵌入穴部を有して構成され、一方側の湯水混合栓の管路接続部の嵌入穴部に前記ジョイント部材の一端側が嵌入され、他方側の湯水混合栓の管路接続部の嵌入穴部に前記ジョイント部材の他端側が嵌入され、以って、一方側の湯水混合栓の管路接続部と他方側の湯水混合栓の管路接続部とがジョイント部材を介して接続されている構成としてもよい。
【００２１】
また、管路接続部はその端面部に鍔を有しており、一方側の湯水混合栓の管路接続部の鍔と他方側の湯水混合栓の管路接続部の鍔とが接合された状態で、クリップ部材が両鍔を跨って挟み装着され、以って、一方側の湯水混合栓の管路接続部と他方側の湯水混合栓の管路接続部とが接続されている構成としてもよい。
【００２２】
さらには、湯水混合栓が複数連結されたその連結端部の管路接続部には外部配管又は流体機器を接続してもよい。
【００２３】
さらに、本発明の温水器は、上記構成の湯水混合栓又は湯水混合栓の連結体を有していることを特徴とする。
【００２４】
【発明の実施の形態】
以下、本発明の実施形態例を図面に基き説明する。なお、以下の各実施形態例の説明において、共通の構成部分には同一符号を付し、重複説明は省略又は簡略化する。図１〜図３は本発明に係る湯水混合栓の一実施形態例の構成を示す。なお、図１は湯水混合栓の断面構成を示し、図２は湯水混合栓を構成する外部ケース２０と温調ユニット２１との分離状態を示し、図３は主に湯水混合栓の外形を示すもので、（ｂ）は正面図、（ｃ）は側面図、（ａ）は（ｂ）のＡ−Ａ断面図である。
【００２５】
本実施形態例の湯水混合栓は外部ケース２０と温調ユニット２１を主要構成要素とし、温調ユニット２１をカセット（カートリッジ）タイプに形成し、該温調ユニット２１を外部ケース２０に対して着脱自在に差込装着（挿入による差込装着）する構成としたことを特徴とする。外部ケース２０の材料は特に限定されないが例えば金属材料或いは合成樹脂材料で作成される。金属材料（例えば銅系や鉄系の材料）を用いる時は鋳造による製作が好適であり、合成樹脂を用いる時は射出等の成型による製作が好適である。勿論、切削、鍛造等の他の製作手法を採り得る。
【００２６】
外部ケース２０の内部は温調ユニット２１のユニット収容室２２と成しており、図２の状態で、ユニット収容室２２の上端開口は温調ユニット２１の挿入口２３と成し、該挿入口２３とは反対側となるケースの下端側には吐出側水路１３がユニット収容室２２に連通して形成されている。また、外部ケース２０の互いに反対側となる側壁に給水側水路１１と給湯側水路１２が形成されている。本実施形態例においては、外部ケース２０は鋳造又は成型によって形成され、給水側水路１１と給湯側水路１２と吐出側水路１３は該外部ケース２０と一体に形成されている。本実施形態例では給水側水路１１は給湯側水路１２よりもやや上位に形成されているがこれらの形成位置関係はその逆でもよく、同一高さ位置でもよく、温調ユニット２１側の機構に整合した位置に形成すればよい。
【００２７】
図３（ａ）に示されるように、給水側水路１１と給湯側水路１２は貫通した平行な真直水路と成しており、各貫通水路の端部５３、５４、５５、５６は同一形状に形成され、各水路端の水路径は中央部側の水路径よりも大きく形成されて後述する閉止栓の装着部としての機能とジョイント部材の嵌入穴部としての機能を兼用する構成と成している。それゆえ、本明細書においては、閉止栓の装着部とジョイント部材の嵌入穴部は共通の符号として５８を使用する。給水側水路１１と給湯側水路１２とは真直な平行水路と成しているので、給水側水路１１の一端部５３と給湯側水路１２の一端部５５との中心間隔（ピッチ）は給水側水路１１の他端部５４と給湯側水路１２の他端部５６との中心間隔（ピッチ）に等しい寸法と成している。そして、各端部５３、５４、５５、５６には管路接続部が形成されている。本実施形態例では、場合に応じ、各端部５３、５４、５５、５６の端面部に形成された鍔５９と前記嵌入穴部５８との一方又は両方が管路接続部として機能する。なお、この実施形態例においては、給水側水路１１および給湯側水路１２は水平方向と成し、吐出側水路１３上下方向（水路１１、１２に略直交する方位の方向）と成している。
【００２８】
本実施形態例の給水側水路１１と給湯側水路１２は貫通水路と成しているので、給水側水路１１を給水側の主幹水路として機能させ、給湯側水路１２を給湯側の主幹水路として機能させることができる点に特徴がある。因みに、図１４に示されている従来の湯水混合栓にはこのような給水と給湯の貫通水路は形成されていないので、湯水混合栓の内部の水路を主幹水路として機能させることは不可能である。
【００２９】
前記給水側水路１１は連通孔２４を介して、給湯側水路１２は連通孔２５を介して、吐出側水路１３は連通孔２６を介して、それぞれユニット収容室２２に連通している。外部ケース２０の上端側の外周には適宜の位置に水平方向に突き出す突き出し壁２７が設けられ、この突き出し壁２７には上下方向のねじ穴２８が設けられ、ねじ２９を用いてユニット収容室２２に差し込み挿入された温調ユニット２１を着脱可能に締結する構成と成している。
【００３０】
温調ユニット２１は内部ケース３０内に温調機構３１を内蔵（収容）したものである。温調機構３１はワックスサーモエレメント１０を用いた機構であり、このようなワックスサーモエレメント１０を用いた温調機構３１は周知である。温調機構３１はスプリング１９とワックスサーモエレメント１０と弁体１４とを主要な要素として構成されており、内部ケース３０の弁室９内にこれらの要素が収容されている。
【００３１】
すなわち、弁室９の下部にスプリング１９が起立状に配置され、スプリング１９の下端は弁室９の底面に係止し、上端はスプリング押さえ３２の下面に係止されてスプリング１９は圧縮変形状態と成している。板状のスプリング押さえ３２の中心位置の挿通孔にはワックスサーモエレメント１０の下部側が遊挿され、スプリング押さえ３２の上部側でスプリング押さえ３２はワックスサーモエレメント１０の一部位に係止されている。すなわち、スプリング１９の上方への付勢力がスプリング押さえ３２を介してワックスサーモエレメント１０に加えられている。なおスプリング押さえ３２には適当な数の透孔３３が混合湯水の流通孔として形成されている。
【００３２】
スプリング押さえ３２よりも上方側の位置で弁体１４はワックスサーモエレメント１０に固定されている。図の複雑化を避けるため、弁体１４の断面を示す斜線（ハッチング）の図示は省略してある。この弁体１４にも湯水の上下方向の流通を確保する透孔３４が形成されている。弁体１４の上方側となる内部ケース３０の側壁には外部ケース２０側の給水側水路１１の連通孔２４に連通する冷水の入水口３５が形成され、弁体１４の下方側となる内部ケース３０の側壁には外部ケース２０側の給湯側水路１２の連通孔２５に連通する湯の入水口３６が形成されている。また、内部ケース３０の底壁には外部ケース２０側の吐出側水路１３の連通孔２６に連通する混合水の出口３７が形成されている。
【００３３】
内部ケース３０の上端側には弁座部材３８がＯリング等のシール部材を間に介して気密に嵌入装着されている。弁座部材３８の下面からは下方に向けて弁座３９が突出形成されている。弁座部材３８の中心部にはワックスサーモエレメント１０の上部側が上下摺動自在に挿通されており、ワックスサーモエレメント１０の挿通部には該ワックスサーモエレメント１０の側周面と弁座部材３８の挿通孔壁面との間にワックスサーモエレメント１０を気密摺動させるためのＯリング等の封止部材８４が介在されている。
【００３４】
弁座部材３８の上面中央部には凹部が形成され、この凹部に台座部材４０の下部筒部４１が嵌合され、台座部材４０の鍔部４２の下面は弁座部材３８及び内部ケース３０の上端面に当接されて支持され、この鍔部４２の位置で台座部材４０はねじ４３を用いて内部ケース３０の上端鍔４４に螺合固定されている。なお、弁座部材３８の上端面と内部ケース３０の上端面は面一となっている。台座部材４０は前記鍔部４２の上面側から上方に起立する上部筒部４５を有し、この上部筒部４５の上端に横水平に張り出す台座４６が形成され、この台座４６の上面にモータ４７が載置されて、モータ４７はねじ４８を用いて台座４６に固定されている。
【００３５】
前記台座部材４０の中央は貫通されており、この貫通空間内にシャフト４９が収容されている。このシャフト４９の上端側はモータ４７の出力軸に連結されており、シャフト４９の下端面には凹穴８３が形成され、この凹穴８３内にワックスサーモエレメント１０の上端側が挿入され、ワックスサーモエレメント１０の上端は凹穴８３の底面に当接されている。なお、図中、５０はサポートリングを示し、このサポートリング５０は台座部材４０の下部筒部４１によって弁座部材３８の凹部底面に押し付け固定されて、前記ワックスサーモエレメント１０と弁座部材３８間に設けられるシール部材（Ｏリング）８４の抜け出しを防止している。
【００３６】
図中、５１はスプリング５２の伸縮をガイドするスプリングガイドで、その外周にはスプリング５２が配置され、スプリング５２の上端は台座部材４０の貫通空間内壁に設けた段部に係止され、下端はスプリングガイド５１の下端部のばね受け部に係止されている。このスプリング５２の付勢力を受けてスプリングガイド５１の下端はサポートリング５０の上面に押圧されている。スプリングガイド５１の上端は台座部材４０の貫通孔の上部空間８５に望んでおり、スプリングガイド５１はスプリング５２の付勢力に抗して上部空間８５側へ移動可能と成している。
【００３７】
スプリングガイド５１の内周面には雌ねじが形成されており、この雌ねじに前記シャフト４９の外周面に形成された雄ねじが螺合され、モータ４７の正逆所望方向の回転によって、シャフト４９はスプリングガイド５１に対し螺合回転しながら上下所望方向の移動が可能となっている（モータ４７の出力軸とシャフト４９はシャフト４９の上下移動を許容する態様で連結されている）。ワックスサーモエレメント１０の上端はスプリング１９の上方への付勢力を受けてシャフト４９に当接しているので、モータ４７の回転に伴うシャフト４９の上下移動に伴いワックスサーモエレメント１０はシャフト４９の移動に追従して移動する。それ故、モータ４７の回転制御によりワックスサーモエレメント１０の基準位置（設定温度の位置）の調整設定を可能にし、また、モータ４７を強制回転してワックスサーモエレメント１０の位置を基準位置から強制的に移動させることで、設定温度とは異なる温度の湯水を得る強制温度制御を可能にする。
【００３８】
また、上記ワックスサーモエレメント１０とモータ４７との連結構成は、異常高温時のワックスサーモエレメント１０の破壊防止機能を有する構成と成している。すなわち、弁室９内の混合湯水の湯温が異常に上昇した場合には、ワックスサーモエレメント１０の下方への膨張による伸張量が大きくなる。この伸張量が弁体１４とそれに対向する下側の入水口３６の壁面との間の隙間寸法を越えてしまうと弁体１４の下端がその壁面に突き当たってその隙間寸法よりも大きく移動できないので、ワックスサーモエレメント１０に大きな応力が発生し、ワックスサーモエレメント１０が破壊されるという問題が生じてしまう。この点、本実施形態例の構成とすることにより、ワックスサーモエレメント１０の膨張による伸張量が前記隙間寸法を越えても、ワックスサーモエレメント１０はスプリング５２の付勢力に抗してシャフト４９およびスプリングガイド５１と一体的に上方へ移動して前記隙間寸法を越える膨張伸張量を吸収緩和し、ワックスサーモエレメント１０の破壊を防止することができる構成と成している。
【００３９】
内部ケース３０の外周面には入水口３５の上側と、入水口３５と入水口３６の中間部と、入水口３６の下側の各位置にシール溝が周設されており、その各シール溝内にシール部材としてのＯリング５７が嵌め込まれている。
【００４０】
図１に示されるように、温調ユニット２１が外部ケース２０に挿入（差込）され、換言すれば、温調機構が組み込まれた内部ケース３０が挿入口２３から外部ケース２０内に挿入され、内部ケース３０と外部ケース２０とがねじ２９を用いて固定されることで、湯水混合栓が組み立てられる。この組立完了状態において、給湯側水路１２は連通孔２５と入水口３６を連通して弁室９に通じ、給水側水路１１は連通孔２４と入水口３５を連通して弁室９に通じ、吐出側水路１３は連通孔２６と出口３７を連通して内部ケース３０内の下部側空間に通じる。この内部ケース３０内の下部側空間は透孔３３を介して弁室９に通じているので、吐出側水路１３は連通孔２６と出口３７を連通して弁室９に通じていることとなる。
【００４１】
そして、外部ケース２０と内部ケース３０とはＯリング５７によって気密嵌合を維持し、給水側水路１１と給湯側水路１２は前記Ｏリング５７によって相互の流通干渉が遮断されている。
【００４２】
図４は湯水混合栓の配管接続態様を示す。図４（ａ）は、給水側水路１１の両端の管路接続部にそれぞれ外部配管６０（６０ａ、６０ｂ）を接続し、給湯側水路１２の両端の管路接続部にそれぞれ外部配管６０（６０ｃ、６０ｄ）を接続したものである。各外部配管６０はその先端側に鍔６１が形成されており、その鍔６１の先方側管部を対応する水路１１、１２の端部の嵌入穴部５８に挿入し、鍔５９と鍔６１がクリップ部材６３で止められることにより、各外部配管６０は水路１１、１２のそれぞれ両端に着脱自在に接続される。
【００４３】
前記クリップ部材６３は図９に示されている形態のもので、弾性をもたせるために湾曲形成された連結板部６４の両端からアーム部６５が起立形成され、アーム部６５の側板部６６ａ、６６ｂが内側に折り曲げ形成されてアーム部６５の横断面形状がコ字形状を呈しているものである。このアーム部６５の側板部６６ａ、６６ｂが鍔５９、６１を跨って両側から挟むようにしてクリップ部材６３を鍔５９、６１に差し込むワンアクション動作によって外部配管６０の接続は容易に行われる。なお、嵌入穴部５８に挿入される外部配管６０の外周面にはシール溝が周設され、その溝にＯリング６２が介在されることで、水路１１、１２と外部配管６０との気密接続が達成されている。
【００４４】
この外部配管６０の接続状態において、外部配管６０ａと給水側水路１１と外部配管６０ｂとは直列の連続水路を形成し、この連続水路は給水側の主幹水路として機能させることを可能としている。また、外部配管６０ｃと給湯側水路１２と外部配管６０ｄとは連続水路を形成し、この連続水路は給湯側の主幹水路として機能させることを可能としている。
【００４５】
図４（ｂ）は給水側水路１１と給湯側水路１２の同一側の片端部に外部配管６０（６０ａ、６０ｃ）を接続し、残りの端部に閉止栓６７を嵌入装着したものである。各水路１１、１２と外部配管６０（６０ａ、６０ｂ）の接続構成は前記図４（ａ）に示したものと同一である。閉止栓６７は後端部に鍔６８を有し、この鍔６８の先方側の柱体状の栓部６９を装着部５８に嵌入装着したもので、栓部６９の外周面にはシール溝が周設され、その溝にＯリング６２が介在されて、閉止栓６７は装着部５８に気密装着され、水路１１、１２の片端が閉鎖されている。
また、鍔５９と鍔６８を挟むようにしてクリップ部材６３が装着されることで、閉止栓６７は対応する水路１１、１２に着脱自在に固定されている。なお、この閉止栓６７と水路１１、１２とのクリップ部材６３を用いた固定構造は前記した外部配管６０と水路１１、１２との固定構造と同様である。
【００４６】
図４（ｃ）は給水側水路１１と給湯側水路１２の互いに反対側となる端部に外部配管６０（６０ａ、６０ｄ）を接続し、残りの端部は閉止栓６７を装着して閉止（閉鎖）したものである。つまり、給水側水路１１の一端部（入口部）５３に外部配管６０ａを接続し、他端部（出口部）５４は閉止栓６７を装着して閉止し、給湯側水路１２の一端部（出口部）５５は閉止栓６７を装着して閉止し、他端部（入口部）５６に外部配管６０ｄを接続したものである。前記図４（ｂ）の構成は、給水側の外部配管６０による水路と給湯側の外部配管６０による水路を同一方向から湯水混合栓に導入したが、図４（ｃ）の構成は給水側の外部配管６０による水路と給湯側の外部配管６０による水路とを互いに反対側から湯水混合栓に導入した点で図４（ｂ）の構成と異なっている。言うまでもないが、図４（ｂ）、（ｃ）の構成において、外部配管６０と閉止栓６７の接続関係を左右逆にしてもよいものである。
【００４７】
本実施形態例の図１において、給水側水路１１からの冷水は連通孔２４、入水口３５を通して弁室９に入り込む。また、給湯側水路１２からの湯（設定温度よりも高温の湯）は連通孔２５、入水口３６を通して弁室９に入り込む。そして、弁室９において冷水と湯の混合が行われて設定温度の混合湯水が出口３７、連通孔２６を通して吐出側水路１３から送水される。設定温度よりも混合湯水の湯温が上昇するとワックスサーモエレメント１０は図１の上下関係のもとで、下方へ膨張伸張するので、ワックスサーモエレメント１０に固定されている弁体１４も一体的に下方へ移動し、その結果、弁座３９と弁体１４の上端との隙間（図１においてはその隙間が無いように図示されているが実際の動作状態の場合は隙間が形成される）が開くので弁室９への冷水の入水量が増加し、その一方で、入水口３６から弁室９に入る湯の入水量が減少するので混合湯水の湯温は低下方向に修正されて設定温度に調整される。
【００４８】
混合湯水の湯温が設定温度よりも低下すると、ワックスサーモエレメント１０は上方へ収縮変形するので弁体１４は上方へ移動する結果、上記の場合とは逆に、冷水の入水量が減少し、湯の入水量が増加するので、混合湯水の温度は上昇方向へ修正されて設定温度に調整される。設定温度を変更する場合はモータ４７を正逆所望方向に回転してワックスサーモエレメント１０を上下移動し、基準位置を調整すればよい。基準位置を下方位置に修正すると設定温度は低下方向へ修正され、基準位置を上方位置に修正すると設定温度は上昇方向へ修正される。
【００４９】
図５は本発明の湯水混合栓の連結体の実施形態例を示す。同図において、同一構成（図１に示されているものと同一構成）の湯水混合栓７０ａ、７０ｂは互いに給水側水路１１同士および給湯側水路１２同士を直列状に接続して連結されている。すなわち、互いに対向する湯水混合栓７０ａ側の給水側水路１１（１１ａ）の端部の嵌入穴部５８に筒状をしたジョイント部材７１の一端側が嵌入され、湯水混合栓７０ｂ側の給水側水路１１（１１ｂ）の端部の嵌入穴部５８にジョイント部材７１の他端側が嵌入され、さらに、水路１１ａ、１１ｂ同士の接続端の両鍔５９にクリップ部材６３を装着することで、給水側水路１１同士が接続されている。
【００５０】
また、互いに対向する湯水混合栓７０ａ側の給湯側水路１２（１２ａ）の端部の嵌入穴部５８に筒状をしたジョイント部材７１の一端側が嵌入され、湯水混合栓７０ｂ側の給湯側水路１２（１２ｂ）の端部の嵌入穴部５８にジョイント部材７１の他端側が嵌入され、さらに、水路１２ａ、１２ｂ同士の接続端の両鍔５９に前記したようにクリップ部材６３を装着することで、給湯側水路１２同士が接続されている。なお、ジョイント部材７１の両端側の外周面にはそれぞれシール溝が周設され、その溝にＯリング６２が介在されることで、ジョイント部材７１と対応する嵌入穴部５８との気密嵌入が達成されている。
【００５１】
図６（ａ）は湯水混合栓７０ａと湯水混合栓７０ｂの別の連結体の実施形態例の構成を示す。この図６（ａ）に示す構成が前記図５に示した構成と異なる点は給水側水路１１同士および給湯側水路１２同士を連結する場合、クリップ部材６３を使用せずにジョイント部材７１のみを用いて給水側水路１１同士および給湯側水路１２同士の連結を行っていることであり、それ以外の構成は図５に示した実施形態例と同様である。
【００５２】
このジョイント部材７１のみを用いた連結の場合、給水側水路１１同士および給湯側水路１２同士の連結が分離されないように連結状態を固定する場合は、例えば、図６（ｂ）、（ｃ）のような連結固定（連結保持）手段を設ければよい。
図６（ｂ）に示すものは、給水側水路１１および給湯側水路１２の両端部に鍔片８６を形成し、隣接する鍔片８６の孔８７間にピン（Ｕ字形状ピン）８８を差し込んで連結状態を固定するものである。図６（ｃ）に示すものは、水路１１、１２の一端側の鍔片８６を端面から先方へ突き出すように形成し、この一端側の先方突き出し鍔片８６を隣の連結相手側の鍔片８６に孔８７同士が重なり合う（一致する）ように重ね、重なり合う孔８７にねじを通して固定する（重なり合う一方側の孔８７に雌ねじを形成してねじ止め固定してもよい）ものである。
【００５３】
図７および図８は湯水混合栓７０ａ、７０ｂの連結体と外部配管６０との接続構成例を示す。図７に示す構成は前記した図４（ａ）のものに対応するもので、連結体における給水側水路１１の両端および給湯側水路１２の両端にそれぞれ外部配管６０を接続したものである。つまり、湯水混合栓７０ａの給水側水路１１ａの一端部５３に外部配管６０ａを接続し、湯水混合栓７０ｂの給水側水路１１ｂの他端部５４に外部配管６０ｂを接続し、湯水混合栓７０ａの給湯側水路１２ａの一端部５５に外部配管６０ｃを接続し、湯水混合栓７０ｂの給湯側水路１２ｂの他端部５６に外部配管６０ｄを接続したものである。これら各外部配管６０（６０ａ、６０ｂ、６０ｃ、６０ｄ）と対応する水路１１、１２との接続構成は前記図４（ａ）に示したものと同様である。
【００５４】
この図７に示す構成においては、外部配管６０ａと、給水側水路１１ａと、給水側水路１１ｂと、外部配管６０ｂとは直列の連続水路を形成し、この連続水路は給水側の主幹水路として機能させることを可能としている。また、外部配管６０ｃと、給湯側水路１２ａと、給湯側水路１２ｂと、外部配管６０ｄとは連続水路を形成し、この連続水路は給湯側の主幹水路として機能させることを可能としている。
【００５５】
図８（ａ）に示される外部配管６０の接続構成は、前記図４（ｂ）に示したものに対応し、外部配管６０ａによる給水側の水路と外部配管６０ｃによる給湯側の水路を連結体の同一端側に導入するもので、湯水混合栓７０ａの給水側水路１１ａの一端部５３に外部配管６０ａを接続し、湯水混合栓７０ｂの給水側水路１１ｂの他端部５４に閉止栓６７を装着し、湯水混合栓７０ａの給湯側水路１２ａの一端部５５に外部配管６０ｃを接続し、湯水混合栓７０ｂの給湯側水路１２ｂの他端部５６に閉止栓６７を装着したものである。これら外部配管６０ａ、６０ｂおよび閉止栓６７の接続や装着の構成は前記図４に示すものと同様である。
【００５６】
図８（ｂ）に示される外部配管６０の接続構成は、前記図４（ｃ）に示したものに対応し、外部配管６０ａによる給水側の水路と外部配管６０ｄによる給湯側の水路とを連結体に対し互いに反対方向から導入するもので、湯水混合栓７０ａの給水側水路１１ａの一端部５３に外部配管６０ａを接続し、湯水混合栓７０ｂの給水側水路１１ｂの他端部５４に閉止栓６７を装着し、湯水混合栓７０ａの給湯側水路１２ａの一端部５５に閉止栓６７を装着し、湯水混合栓７０ｂの給湯側水路１２ｂの他端部５６に外部配管６０ｄを接続したものである。これら外部配管６０ａ、６０ｄおよび閉止栓６７の接続や装着の構成は前記図４に示すものと同様である。この図８（ｂ）の構成においても、給水側水路１１の外部配管６０ａと閉止栓６７の接続（装着）関係を逆にし、給湯側水路１２の外部配管６０ｄと閉止栓６７の接続（装着）関係を逆にしてもよいことは言うまでも無い。
【００５７】
なお、図７および図８に示す構成例は、湯水混合栓７０ａ、７０ｂを図５に示す構成で連結されているが、勿論、図６に示される湯水混合栓の連結体にも同様に適用されるものである。
【００５８】
上記実施形態例における湯水混合栓７０ａ、７０ｂの連結体においては、湯水混合栓７０ａの混合湯水の設定温度と湯水混合栓７０ｂの混合湯水の設定温度は異なる温度に設定されており、各湯水混合栓７０ａ、７０ｂから異なる湯温の混合湯水がそれぞれ異なる場所に送出される。
【００５９】
図１０は本発明に係る温水器の実施形態例を示す。同図において、温水器７２内の給水路１は給水路１ａと給水路１ｂに分岐され、給水路１ａは湯水混合栓７０ａ、７０ｂ、７０ｃの連結体７３の給水側水路１１の入水端部に接続され、給水路１ｂは加熱手段２に導入されている。この加熱手段２は、導入される冷水を加熱して湯を作り出す機能を備えていればよく、例えば、燃焼加熱による手段、電気エネルギによる加熱手段、太陽光を利用したソーラシステムによる加熱手段等の様々な手段が採用され得るものである。加熱手段２で作り出された湯（高温の湯）は給湯路３を介して連結体７３の給湯側水路１２の入水端に接続される。
【００６０】
連結体７３はこの例では３個の湯水混合栓７０ａ、７０ｂ、７０ｃが給水側水路１１同士および給湯側水路１２同士を直列状に接続して連結されており、具体的には、図８（ａ）に示すタイプと同様にして湯水混合栓７０ａ、７０ｂ、７０ｃを順に連結し、最初の湯水混合栓７０ａの給水側水路１１ａの一端部５３には給水路１ａ（図８（ａ）の外部配管６０ａに相当）を接続し、同様に湯水混合栓７０ａの給湯側水路１２ａの一端部５５に給湯路３（図８（ａ）の外部配管６０ｃに相当）を接続し、連結最後の湯水混合栓７０ｃの給水側水路１１（１１ｃ）の他端部（出口部）５４に閉止栓６７を装着し、同じ湯水混合栓７０ｃの給湯側水路１２（１２ｃ）の他端部（出口部）５６に閉止栓６７を装着することにより、図１０に示される連結体７３が形成される。
【００６１】
これらの各湯水混合栓７０ａ、７０ｂ、７０ｃの吐出側水路１３にそれぞれ対応する混合水路７ａ、７ｂ、７ｃを接続することにより、図１０に示される温水器７２が構成される。
【００６２】
各湯水混合栓７０、７０ｂ、７０ｃの湯水混合の設定温度を異なる温度となるように設定することにより、湯水混合栓７０ａからは混合温度Ｔ１の湯温の湯が送水され、湯水混合栓７０ｂからは混合温度Ｔ２の湯温の湯が送水され、湯水混合栓７０ｃからは混合温度Ｔ３の湯温の湯が送水される。
【００６３】
本実施形態例の図１０のシステム構成と従来の図１５に示されるシステム構成とを比較すれば明らかなように、本実施形態例の温水器７２は図１５に示されるような各湯水混合栓６ａ、６ｂ、６ｃに接続するための分岐管４ａ、４ｂ、４ｃ、５ａ、５ｂ、５ｃが不要となるので、配管接続作業が容易になると共に、配管スペースを節減してスペースの効率化を図ることができる上に、システム構築コスト（装置コスト）の低減を達成することが可能となる。
【００６４】
なお、本発明は上記した各実施形態例に限定されることなく様々な形態を採り得る。例えば、上記実施形態例では、湯水混合栓の給水側水路１１と給湯側水路１２と吐出側水路１３を外部ケース２０と一体構成（分離不能な構成）としたが、これらの水路１１、１２、１３の１つ以上を外部ケース２０とは別個の水路形成部材で形成し、この水路を有する水路形成部材を外部ケース２０に着脱自在に装着する構成としてもよい。
【００６５】
図１１は水路形成部材の着脱自在方式の構成例を示す。図１１（ａ）に示すものは、外部ケース２０側に挿入穴７５を設け、給水側水路１１を設けた水路形成部材７４からは挿入筒部７６を突出形成し、この挿入筒部７６の外周面にシール溝を設けてその中にＯリング６２を収容し、この状態で挿入穴７５内に挿入筒部７６を挿入して水路形成部材７４を外部ケース２０に装着する構成のものである。図示の例では、外部ケース２０側に雌側の挿入穴７５を設け、水路形成部材７４側に雄側の挿入筒部７６を突出形成したが、これとは雌、雄を逆にして、外部ケース２０側に雄側の挿入筒部を突出形成し、水路形成部材７４側に雌側の挿入穴を設けて水路形成部材７４を外部ケース２０に装着する構成としてもよい。
【００６６】
図１１（ｂ）に示すものは、外部ケース２０側と給水側水路１１を形成した水路形成部材７４側とに接続筒部７７、７８を形成し、外部ケース２０側の接続筒部７７と水路形成部材７４側の接続筒部７８との先端面を当接し、この状態で鍔７９、８０を挟み込んで前述したクリップ部材６３（図１１（ｂ）では図示せず）を装着することで、水路形成部材７４を外部ケース２０に装着するものである。なお、この場合は、接続筒部７７と接続筒部７８の当接端面のうち少なくとも一方側の端面にシール溝を設け、その溝にＯリング等のシール部材を収容して気密接続を図ることが望ましい。
【００６７】
なお、図１１では、給水側水路１１を形成した水路形成部材７４を外部ケース２０に装着する例で説明したが給湯側水路１２を形成した水路形成部材７４を同様に外部ケース２０に着脱自在に装着する構成としてもよい。
【００６８】
これら、水路形成部材７４を着脱自在の方式で構成する場合、複数の湯水混合栓の連結体に適用する場合は、各湯水混合栓毎に水路形成部材７４を装着する構成としてもよいが（この場合は、水路形成部材７４の端部に管路接続部を形成して順次直列接続することとなる）、複数の湯水混合栓の連結体のトータル水路長に相当する長さ又はそれよりも長い長さの水路形成部材７４を用意し、その水路形成部材７４の所定の位置（各湯水混合栓に対応する装着位置）に挿入筒部７６や、接続筒部７８を連結体の湯水混合栓の数だけ間隔を介して形成し、兼用（共用）の１個の水路形成部材７４を複数の湯水混合栓の外部ケース２０へ一括装着する構成としてもよい。この場合は、各湯水混合栓の水路形成部材７４を順次接続する手間が省ける。
【００６９】
また、上記実施形態例では、例えば図３（ａ）に示されるように、給水側水路１１と給湯側水路１２を共に真直水路としたが、必ずしも水路全長（水路全体）にわたって真直にしなくてもよい。要は、給水側水路１１の両端部５３、５４の部分が同一直線（一端部５３の水路中心と他端部５４の水路中心とを結ぶ直線）に沿う真直向きと成し、かつ、給湯側水路１２の両端部５５、５６が別の同一直線（一端部５５の水路中心と他端部５６の水路中心とを結ぶ直線）に沿う真直向きであって、両端部５３、５４の真直向きと両端部５５、５６の真直向きとが平行（前記の両直線が平行）であればよく、水路１１、１２の中央部は湾曲等したりしていてもよい。
【００７０】
また、上記実施形態例ではシール部材としてＯリングを用いたが、Ｙパッキンや、平面パッキン等を用いてもよく、液状シール以外の他のシール部材を採用することが可能である。液状シールを用いた場合はそのシールを設けた部位を一度取り外すとシール機能が損なわれてしまうという問題が生じるが、シール部材としてＯリングや、Ｙパッキン等のシール部材を用いれば、そのシール部材を設けた部位を繰り返し着脱してもシール機能を失うことがなく、そのシール部材を交換せずに繰り返し使用することができるという効果が得られる。
【００７１】
さらに、上記実施形態例では、給水側水路１１および給湯側水路１２は両端が開口した貫通水路とし、水路端を閉止するときには閉止栓６７を装着して閉止したが、閉止栓６７を装着しようとする水路端を閉塞壁で閉止した一端開口他端閉塞タイプの水路１１、１２としてもよい。この場合は、閉止栓６７は不要となる。
【００７２】
さらに、図５（ａ）の例では給水側水路１１ａ、１１ｂ同士の接続および給湯側水路１２ａ、１２ｂ同士の接続をクリップ部材６３とジョイント部材７１を用いて行っているがクリップ部材６３のみを用いて接続を行うようにしてもよい。
この場合は、接続し合う水路端面の当接面間にＯリングやＹパッキン等のシール部材を介設する。水路１１、１２と外部配管６０を接続する場合も同様とすることができる。また、水路１１、１２と外部配管６０は継ぎ手や、その他の手段を用いて接続することも可能である。
【００７３】
さらに、上記実施形態例では、水路１１、１２の端部に形成する嵌入穴部（装着部）５８は中央側の水路径よりも端部側の径を大きくした段部を有する形状としたが、このような段部を設けずに、例えば、図１２に示すように、中央側の水路径と端部側の径を同じ径にした管路接続部の構成としてもよい。図１２に示す例では、ジョイント部材７１の中央部の外周面側から鍔８９を形成し、ジョイント部材７１の一端側は湯水混合栓７０ａ側の水路１１（１２）に嵌入し、他端側は湯水混合栓７０ｂ側の水路１１（１２）に嵌入し、湯水混合栓７０ａ側の水路１１（１２）の鍔５９と湯水混合栓７０ｂ側の水路１１（１２）の鍔５９でジョイント部材７１の鍔８９を両側から挟み、両鍔５９間に図５（ａ）に示されるように、クリップ部材６３（図１２では図示せず）を装着することにより湯水混合栓７０ａ側と湯水混合栓７０ｂ側との給水側水路１１同士および給湯側水路１２同士が連結（接続）されるものである。
【００７４】
さらに、上記実施形態例では給水側水路１１および給湯側水路１２の両端部の形状を同一形状としたが、これを異なる形状としてもよい。図１３はその一例を示す。図１３の例では、水路１１（１２）の一端側に設けた鍔５９ａよりも先方を挿入部９０と成し、他端側を嵌入穴部（装着部）５８と成し、挿入部９０の外径はＯリング６２を介して嵌入穴部５８に気密に嵌入する寸法と成したものである。この構成とすることにより、連結し合う一方側の湯水混合栓７０の水路１１（１２）の嵌入穴部５８に他方側の湯水混合栓７０の水路１１（１２）の挿入部９０を挿入することにより、複数の湯水混合栓７０の給水側水路１１同士、および給湯側水路１２同士をジョイント部材７１を必要とせずに連結（接続）可能となる。
【００７５】
上記の実施形態例では給水側水路１１と給湯側水路１２の高さ位置が異なるので、給水側水路１１と給湯側水路１２を同径とし、水路１１、１２の両端の形状を同一形状としても、給水側水路１１と給湯側水路１２とが誤連結されるという問題は生じないが、給水側水路１１と給湯側水路１２を同一高さとしたときには（例えば、図５（ａ）において水路１１と水路１２を同一高さにした場合）、湯水混合栓７０ａが１８０度回転した状態で湯水混合栓７０ｂに誤連結される場合が生じる。このような誤連結（誤接続）が生じた場合には、一方側の湯水混合栓の給水側水路１１と他方側の湯水混合栓の給湯側水路１２とが連結されるために誤連結された湯水混合栓においては湯用の入水口３６から冷水が入水し、冷水用の入水口３５から湯が入水することとなる。そうなると、例えば、弁室９内の混合湯水の温度が設定温度よりも上昇した場合、ワックスサーモエレメント１０は下方へ移動して入水口３５からの入水量（湯の入水量）を増加させ、入水口３６からの入水量（冷水の入水量）を減少方向に制御するので、混合湯水の湯温はさらに上昇方向に制御されて温調機能が正常に作動せずに暴走するという問題が生じる。
【００７６】
この点、図１３に示されるように水路１１、１２の両端の形状を異にすれば上記のような誤連結の発生を防止でき、誤連結による上記問題の発生を防止できる。なお、給水側水路１１と給湯側水路１２を同一高さに形成して、水路１１、１２の両端の形状を同一にした場合においても、給水側水路１１の径と給湯側水路１２の径を異に形成すれば、給水側水路１１と給湯側水路１２の区別が一見して分かるので、上記の誤連結の問題を防止できる。勿論、給水側水路１１と給湯側水路１２を同一径にした場合においても、給水側水路１１と給湯側水路１２を区別する目印等の識別手段を設けておけば誤連結（誤接続）の問題を防止することが可能である。このような誤連結の発生を完璧に防止したい場合には連結し合う一方の湯水混合栓が正常な位置から１８０度回転した状態の時には給水側水路１１同士および給湯側水路１２同士の連結が不可能となるように水路端部の形状を変えたり、給水側水路１１と給湯側水路１２の形成位置（例えば高さ位置）を変えるようにすればよい。
【００７７】
さらに、上記実施形態例においては、給水側水路１１および給湯側水路１２の管路接続部に外部配管６０を接続したが、この管路接続部に流体機器（例えば流量測定機器等）を接続してもよい。
【００７８】
さらに、上記実施形態例においては、湯水混合栓に内蔵される温調機構３１はワックスサーモエレメント１０を用いたもので構成したが、温調機構は入水する冷水と湯を混合して設定温度の混合湯水を作成送水する機能を有していれば他の構成のものでもよく、ワックスサーモエレメントを有しないタイプの温調機構であってもよい。
【００７９】
さらに、上記実施形態例の温水器７２（図１０参照）においては、次のような変形構成が可能である。例えば、湯水混合栓７０ｃの給湯側水路１２の終端側の管路接続部に外部配管８１を接続し、給湯路３と湯水混合栓７０ａ、７０ｂ、７０ｃの給湯側水路１２と、外部配管８１との直列連続水路を給湯側の主幹水路として機能させてもよく、また、湯水混合栓７０ｃの給水側水路１１の終端側の管路接続部に外部配管８２を接続し、給水路１（１ａ）と湯水混合栓７０ａ、７０ｂ、７０ｃの給水側水路１１と、外部配管８２との直列連続水路を給水側の主幹水路として機能させてもよい。なお、湯水混合栓の連結体を構成する場合、湯水混合栓の数は上記実施形態例のものに限定されず、適宜、必要数の湯水混合栓を連結すればよい。
【００８０】
さらに、上記実施形態例の湯水混合栓にあっては、温調ユニット２１と外部ケース２０の固定はねじ２９を用いた螺合締結手段としたが、温調ユニット２１は外部ケース２０に対して着脱可能に固定すればよく、クリップ等を用いた他の固定手段を用いてもよい、特に、その固定手段を簡易な手段にすれば、着脱作業を簡単に行うことができるので、作業性の上で効果的である。
【００８１】
【発明の効果】
本発明の湯水混合栓は温調機構を内部ケースに内蔵して温調機構と内部ケースとを一体化して温調ユニットをカセットタイプ（カートリッジタイプ）として構成し、温調ユニットを外部ケースに対し着脱自在に挿入（差込）装着する構成としたので、温調機構の修理、保守、交換を行う場合には、配管に接続されている外部ケースをその配管から苦労して取り外す必要は無く、温調ユニットを外部ケースから引き出してその作業を行うことができることとなる。そのため、温調機構の修理、保守、交換等の作業を容易、効率的に行うことができる。
【００８２】
特に、外部ケースにおける温調ユニットの挿入口を吐出側水路とは反対側にした構成にあっては、吐出側水路に接続されている配管が邪魔にならずに温調ユニットの外部ケースに対する着脱作業をきわめて容易におこなうことができるという効果が得られる。
【００８３】
また、湯水混合栓の給水側水路の両端部は同一直線に沿った真直向きと成し、給湯側水路の両端部も別の同一直線に沿った真直向きと成し、給湯側水路の両端の向きと給水側水路の両端の向きを平行にした構成にあっては、湯水混合栓の給湯側水路と給水側水路のピッチ間隔は水路両端において等しくなり、そのため、複数の湯水混合栓を連結する場合には、湯水混合栓相互を接続するための引き回し外部配管を必要とせずに、各湯水混合栓の給湯側水路同士および給水側水路同士を直接又はジョイントを介して接続して複数の湯水混合栓の連結体を構築できる。
【００８４】
また、湯水混合栓の給水側水路を貫通水路として構成することにより、この給水側水路を給水側の主幹水路として機能させ、また、湯水混合栓の給湯側水路を貫通水路として構成することにより、この給湯側水路を給湯側の主幹水路として機能させることができる。
【００８５】
さらに、本発明の湯水混合栓の連結体は、湯水混合栓相互を接続するための外部配管を必要とせずに、各湯水混合栓の給湯側水路同士および給水側水路同士を接続した連結構成と成しているので、従来例の図１５に示されるような、多数の分岐管４ａ、４ｂ、４ｃ、５ａ、５ｂ、５ｃを必要としない。そのため、配管接続作業が容易となり、余分の配管スペースを節減できるのでスペース効率を向上できると共に装置（システム）の小型の構築が可能となり、装置（システム）構築のコスト低減が可能となる。
【図面の簡単な説明】
【図１】本発明に係る湯水混合栓の一実施形態例の構成説明図である。
【図２】図１に示される湯水混合栓を構成する、温調ユニット２１と外部ケース２０との分離状態説明図である。
【図３】上記実施形態例の湯水混合栓の外観と水路構成を示す図である。
【図４】本実施形態例の湯水混合栓の水路と外部配管との各種接続態様を示す図である。
【図５】本発明に係る湯水混合栓の連結体の一実施形態例の説明図である。
【図６】湯水混合栓同士の水路接続構成の別の形態例を示す説明図であって、（ａ）は管路接続部に固定手段を設けていない図であり、（ｂ）は管路接続部に固定手段を設けた例を示す図であり、（ｃ）は管路接続部に別の固定手段を設けた例を示す図である。
【図７】本実施形態例における湯水混合栓の連結体と外部配管との接続態様の説明図である。
【図８】本実施形態例における湯水混合栓の連結体と外部配管との他の接続態様の説明図である。
【図９】本実施形態例において接続固定手段として使用されているクリップ部材の構成説明図で、（ａ）は正面図、（ｂ）は側面図である。
【図１０】本発明に係る温水器の一実施形態例の構成説明図である。
【図１１】給水側水路や、給湯側水路を水路形成部材７４内に形成して湯水混合栓の外部ケースに着脱自在に装着可能とした構成例の説明図である。
【図１２】給水側水路と給湯側水路の端部に形成される管路接続部の他の構成例の説明図である。
【図１３】給水側水路および給湯側水路の一端部と他端部に形成する管路接続部の形状を異にした例の説明図である。
【図１４】出願人が先に提案している従来の湯水混合栓の説明図である。
【図１５】湯水混合栓を複数配置した給湯システムの従来例を示す図である。
【符号の説明】
１０ ワックスサーモエレメント
１１ 給水側水路
１２ 給湯側水路
１３ 吐出側水路
２０ 外部ケース
２１ 温調ユニット
３１ 温調機構
６０ 外部配管
６３ クリップ部材
６７ 閉止栓
７０（７０ａ、７０ｂ、７０ｃ） 湯水混合栓
７２ 温水器[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hot-water mixer tap for mixing water (cold water) and hot water and delivering mixed hot-water (also referred to as mixed water) at a set temperature, a connected body thereof, and a water heater having the hot-water mixer tap and the connected body. is there.
[0002]
[Background Art]
Hot water mixer taps that mix hot water and water (cold water) and deliver hot water at a set temperature are widely used. When using this type of hot and cold water mixing tap to produce hot water, for example, the temperature of hot water used in a bath, the temperature of hot water used in a kitchen, and the temperature of hot water used in a shower are different from each other. In order to guide the hot water from the hot water supply source created using the heating means to a place with a different operating temperature and use it at a suitable temperature, a plurality of water taps with different set values for the set temperature must be arranged. become. FIG. 15 shows an example of a hot water supply system using such a plurality of hot and cold water mixing taps.
[0003]
In the figure, a water supply channel 1 is branched into a water supply channel 1a and a water supply channel 1b, and the water supply channel 1b is connected to a water inlet of the heating means 2. Cold water C (cold water means unheated water in the present specification) supplied through the water supply passage 1b is heated by the heating means 2 to produce hot water having a temperature higher than the use temperature, and the hot water is supplied. Outgoing through path 3.
[0004]
Hot water mixer taps 6a, 6b, 6c are arranged in parallel between the hot water supply path 3 and the water supply path 1a, and each of the hot water mixer taps 6a, 6b, 6c is connected via a corresponding branch pipe 4a, 4b, 4c. High-temperature hot water from the hot water supply channel 3 is introduced, and cold water from the water supply channel 1a is introduced via the corresponding branch pipes 5a, 5b, and 5c. The set temperatures of the hot and cold water mixing taps 6a, 6b and 6c are set to different values from each other. The hot and cold water mixing tap 6a mixes high-temperature hot water and cold water to produce hot water of the set temperature, and the hot water and hot water are mixed through the mixing channel 7. Temperature T 1 Hot water is supplied to a bathtub, for example. Similarly, the mixing tap 6b is connected to the mixing temperature T through the mixing channel 7b. 2 Hot water is supplied to, for example, a kitchen, and a hot and cold water mixing tap 6c is passed through a mixing water passage 7c to mix temperature 3 Hot water is supplied to, for example, a shower. By constructing such a hot water supply system, it becomes possible to use hot water of different suitable temperatures for different applications in different places using the common heating means 2.
[0005]
FIG. 14 shows the configuration of a conventional hot water mixing tap proposed by the applicant earlier. (A) of the figure shows a front section, and (b) of the figure shows a side section. As shown in FIG. 14, a wax thermoelement 10 is accommodated in a valve chamber 9 in a case 8. Cold water enters the valve chamber 9 from the water supply side water passage 11 through the water inlet 15, and hot water from the heating means 2 (see FIG. 15) flows from the water supply side water passage 12 through the water inlet 16. Hot water and cold water are mixed in the chamber 9, and the mixed hot water is sent out from the discharge-side water channel 13.
[0006]
The arrangement position of the wax thermoelement 10 is adjusted and set to a reference position corresponding to the set temperature. When the temperature of the mixed hot water rises above the set temperature, the wax thermoelement 10 expands and extends downward in the figure, and the wax thermoelement 10 is expanded. As a result of the valve body 14 being fixed in the opening direction of the water inlet 15 and moving in the direction of closing the water inlet 16, the amount of incoming cold water increases and the amount of incoming hot water decreases. Adjusted. When the temperature of the mixed hot water falls below the set temperature, the wax thermoelement 10 contracts (shrinks) in the upward direction in the figure, and conversely, the amount of cold water decreases and the amount of hot water increases. The mixed hot water temperature is adjusted to the set temperature. The variable adjustment of the set temperature is achieved by variably adjusting the reference position of the wax thermoelement 10 (position adjustment in the vertical direction in FIG. 14).
[0007]
When incorporating the hot and cold water mixing tap shown in FIG. 14 into the system shown in FIG. 15, the water supply side water channel 11 is connected to the branch pipe 5 (5a, 5b, 5c), and the hot water supply side water path 12 is connected to the branch pipe 4 (4a). , 4b, 4c), and the discharge-side water passage 13 is connected to the mixing water passage 7 (7a, 7b, 7c).
[0008]
[Problems to be solved by the invention]
However, when a hot water supply system as shown in FIG. 15 is constructed, the respective hot and cold water mixing taps 6a, 6b, 6c must be connected by forming branch pipes 4a, 4b, 4c, 5a, 5b, 5c. There is a problem that the external piping becomes complicated, the assembling workability is poor, the cost is high, and a wide piping space must be prepared.
[0009]
In addition, it is necessary to repair the internal mechanism of the hot-water mixer tap when an abnormality occurs. Particularly, in the case of a hot-water mixer tap using a temperature control mechanism using a wax thermo element, the wax thermo element is Since the temperature control performance deteriorates due to deterioration of the element performance due to aging, it is necessary to periodically replace the wax thermoelement. When performing such repair or element replacement maintenance work, for example, it is conceivable to remove the stop cover 17 shown in FIG. 14, but many parts are accommodated in the case 8 together with the springs 18 and 19. Therefore, when the stop cover 17 is removed, these parts are scattered under the urging force of the spring.
For this reason, it is practically difficult to perform repair or maintenance work with the hot and cold mixing tap installed in the system, and when performing such work, remove the hot and cold mixing tap from the pipe and perform it in another place, Repaired and maintained hot water mixer taps must be reconnected.
[0010]
Normally, the pipe is fitted into the connection part of the hot / water mixer tap in a male / female relationship, so that when removing / attaching the hot / water mixer tap, it is necessary to displace the pipe in the direction of pulling out of the hot / water mixer tap. However, the piping has high rigidity, and the pulling displacement required for removal cannot be obtained even when a large force is applied, and eventually the pipe around the hot and cold water mixing tap must be disassembled, and the removal of the hot and cold mixing tap, Installation work was very difficult.
[0011]
The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to eliminate a complicated piping structure for mounting (simplification of the piping structure), and to assemble and maintain (repair and repair). The present invention is to provide a hot and cold water mixing tap and its connected body which can improve the workability of (maintenance), and can save the space and cost of the installation. It is to provide a water heater which has.
[0012]
[Means for Solving the Problems]
The present invention is a means for solving the problem with the following configuration to achieve the above object.
[0013]
That is, the invention of the hot and cold water mixing tap is a hot and cold water mixing tap having a built-in temperature control mechanism for mixing hot water supplied from the hot water supply side water channel and cold water supplied from the water supply side water path and discharging mixed water at a set temperature to the discharge side water path. In the above, the temperature control mechanism is built in an internal case, and the temperature control mechanism and the internal case are configured as an integrated temperature control unit. The internal case is inserted and inserted into the external case, and the temperature control unit is connected to the external case. The inner case has an inlet for the hot water, an inlet for the cold water, and an outlet for the mixed water, and the outer case has the hot water supply-side water passage and the water supply. A side water channel and the discharge side water channel are provided, a communication hole communicating the hot water supply side water channel and the hot water inlet, a communication hole communicating the water supply side water channel and the cold water inlet, Discharge side water channel And a means for solving the problems with the configuration in which the communication hole which communicates the outlet of the mixed water are formed.
[0014]
Preferably, the hot water supply side water channel and the water supply side water channel are provided on side walls opposite to each other of the outer case, and both ends of the hot water supply side water channel are directed straight along the same straight line, and both ends of the water supply side water channel are also different. The hot water supply side water channel is oriented straight along the same straight line, and the directions of both ends of the hot water supply side water channel are parallel to the directions of both ends of the water supply side water channel.
[0015]
Desirably, the direction of the discharge side water channel is a direction substantially perpendicular to the directions of the hot water supply side water channel and the water supply side water channel. Further, it is more effective to form the insertion opening of the temperature control unit in the outer case at a position opposite to the discharge-side water channel.
[0016]
As one mode, the hot water supply side water channel, the water supply side water channel, and the discharge side water channel are formed integrally with the outer case by molding, casting, or forging. Further, at least one of the hot water supply side water channel, the water supply side water channel, and the discharge side water channel is formed by a water channel forming member separate from the outer case, and this water channel forming member may be detachably attached to the outer case. A pipe connection may be formed at each end of the hot water supply side water channel and the water supply side water channel. One or both ends of the outlet of the hot-water supply channel and the outlet of the water-supply-side water channel may be provided with a stopper plug mounting portion, and the remaining water channel end may be formed with a pipe connection portion.
[0017]
External piping or fluid equipment may be connected to the pipeline connection part, and the water supply side water channel and the hot water supply side water channel are configured as through water channels, and one or both of the water supply side water channel and the hot water supply side water channel function as the main waterway. You may.
[0018]
The invention of the connected body of hot water mixer taps is a connected body of hot water mixer taps in which a plurality of hot water mixer taps are connected, and the other side of the hot water mixer tap is connected to the end of the water supply side water channel of one adjacent hot water mixer tap. The water supply-side water passages of the plurality of water / water mixer taps are sequentially connected in series, such that the ends of the water supply-side water passages are connected via a pipe connection portion, and the hot water supply of one adjacent water / water mixer tap is performed. In such a manner that the end of the hot-water supply tap of the other hot-water mixer tap is connected to the end of the side water-supply via a pipe connection part, the hot-water supply-side water paths of the plurality of hot-water mixer taps are sequentially connected in series. It is a means to solve the problem with a certain configuration.
[0019]
Further, another invention of a connected body of hot water mixer taps is characterized in that one or more hot water mixer taps each having a pipe connection portion formed at each end of a hot water supply side water channel and a water supply side water channel are connected to each other. At least at one end of the one or more connections, another hot and cold mixing tap, that is, a mounting portion of a closing tap is formed at one or both ends of the outlet of the hot water supply channel and the outlet of the water supply water channel, and the remaining A water / water mixer tap connected to a water / water mixer tap having a pipe connection portion formed at an end of the water channel, wherein each of the adjacent hot / water mixer taps is connected to the hot water supply side water channel via the pipe connection portion. In addition, the water supply side water passages are connected to each other to connect a plurality of hot water mixer taps, and a mounting stopper for closing the water passage is mounted on a mounting portion of the hot water mixer tap stopper located at the connection end. Means to solve the problem.
[0020]
In the invention of each of the above-mentioned linked bodies, the pipeline connection portion is configured to have a fitting hole portion into which a cylindrical joint member is fitted from the end face side, and a fitting hole portion of the pipeline connection portion of one of the hot and cold water mixing taps. The other end of the joint member is fitted into the fitting hole of the conduit connection part of the hot water mixer tap on the other side, whereby the pipe connection of the one hot water mixer tap is fitted. It is good also as composition which a part and a pipeline connection part of a hot-water mixing tap of the other side are connected via a joint member.
[0021]
In addition, the pipe connection portion has a flange on its end surface, and the flange of the pipe connection portion of the one-side hot-water mixing tap and the flange of the pipe connection portion of the other-side hot-water mixing tap are joined. In this state, the clip member is sandwiched across the two flanges and attached, whereby the pipe connection part of the hot water mixer tap on one side and the pipe connection part of the hot water mixer tap on the other side are connected. Is also good.
[0022]
Further, an external pipe or a fluid device may be connected to a pipe connecting portion at a connection end of the plurality of hot and cold mixing taps connected to each other.
[0023]
Further, the water heater of the present invention is characterized in that it has a hot / water mixer tap or a connected body of the hot / water mixer tap having the above configuration.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of each embodiment, common components are denoted by the same reference numerals, and redundant description is omitted or simplified. 1 to 3 show a configuration of an embodiment of a hot and cold water mixing tap according to the present invention. FIG. 1 shows a cross-sectional configuration of a hot-water mixing tap, FIG. 2 shows a separated state of an external case 20 and a temperature control unit 21 constituting the hot-water mixing tap, and FIG. 3 mainly shows an outer shape of the hot-water mixing tap. (B) is a front view, (c) is a side view, and (a) is a cross-sectional view taken along line AA of (b).
[0025]
The hot / water mixer tap according to the present embodiment has an outer case 20 and a temperature control unit 21 as main components, the temperature control unit 21 is formed in a cassette (cartridge) type, and the temperature control unit 21 is attached to and detached from the outer case 20. It is characterized in that it can be freely inserted (inserted by insertion). The material of the outer case 20 is not particularly limited, but is made of, for example, a metal material or a synthetic resin material. When a metal material (for example, a copper-based or iron-based material) is used, production by casting is preferable, and when a synthetic resin is used, production by molding such as injection is preferable. Of course, other manufacturing techniques such as cutting and forging can be adopted.
[0026]
The inside of the outer case 20 forms a unit accommodation room 22 of the temperature control unit 21, and in the state of FIG. 2, the upper end opening of the unit accommodation room 22 forms an insertion port 23 of the temperature control unit 21. A discharge-side water passage 13 is formed at the lower end of the case opposite to 23 so as to communicate with the unit housing chamber 22. Water supply side water passages 11 and hot water supply side water passages 12 are formed on opposite side walls of the outer case 20. In the present embodiment, the outer case 20 is formed by casting or molding, and the water supply side water channel 11, the hot water supply side water channel 12, and the discharge side water channel 13 are formed integrally with the external case 20. In the present embodiment, the water supply-side water passage 11 is formed slightly higher than the hot water supply-side water passage 12. However, the formation positional relationship may be reversed, or may be at the same height position. What is necessary is just to form in the position which matched.
[0027]
As shown in FIG. 3A, the water supply side water channel 11 and the hot water supply side water channel 12 are formed as parallel straight water channels that penetrate, and the ends 53, 54, 55, and 56 of the respective water channels have the same shape. The diameter of the channel at the end of each channel is formed to be larger than the channel diameter at the center part side, and is configured to serve both as a function as a mounting portion of a closure plug to be described later and a function as a fitting hole portion of a joint member. I have. Therefore, in the present specification, the mounting portion of the stopper and the fitting hole of the joint member use 58 as a common reference numeral. Since the water supply side water channel 11 and the hot water supply side water channel 12 form a straight parallel water channel, the center interval (pitch) between one end 53 of the water supply side water channel 11 and one end 55 of the water supply side water channel 12 is the water supply side water channel. 11 and the other end 56 of the hot water supply side water channel 12 have a size equal to the center interval (pitch). Each end 53, 54, 55, 56 is provided with a pipe connection. In the present embodiment, depending on the case, one or both of the flange 59 formed on the end face of each of the end portions 53, 54, 55, and 56 and the fitting hole 58 functions as a conduit connection portion. In this embodiment, the water supply-side water passage 11 and the hot water supply-side water passage 12 are in the horizontal direction, and are in the up-down direction of the discharge-side water passage 13 (directions in directions substantially orthogonal to the water passages 11 and 12).
[0028]
Since the water supply side water channel 11 and the hot water supply side water channel 12 of this embodiment form a through water channel, the water supply side water channel 11 functions as a main water channel on the water supply side, and the water supply side water channel 12 functions as a main water channel on the hot water supply side. The feature is that it can be done. Incidentally, since the conventional water mixing tap shown in FIG. 14 does not have such a water supply and hot water supply through water passage, it is impossible to make the water passage inside the water mixing tap function as a main waterway. is there.
[0029]
The water supply-side water channel 11 communicates with the unit housing chamber 22 through a communication hole 24, the hot water supply water channel 12 through a communication hole 25, and the discharge-side water channel 13 through a communication hole 26. A protruding wall 27 that protrudes in the horizontal direction is provided at an appropriate position on the outer periphery on the upper end side of the outer case 20, and the protruding wall 27 is provided with a screw hole 28 in the vertical direction. The temperature control unit 21 inserted and inserted into the device is detachably fastened.
[0030]
The temperature control unit 21 has a temperature control mechanism 31 incorporated (accommodated) in an inner case 30. The temperature control mechanism 31 is a mechanism using the wax thermoelement 10, and the temperature control mechanism 31 using such a wax thermoelement 10 is well known. The temperature control mechanism 31 includes a spring 19, a wax thermoelement 10, and a valve body 14 as main elements, and these elements are accommodated in the valve chamber 9 of the inner case 30.
[0031]
That is, the spring 19 is arranged in an upright state at the lower part of the valve chamber 9, the lower end of the spring 19 is locked on the bottom surface of the valve chamber 9, and the upper end is locked on the lower surface of the spring retainer 32. And The lower part of the wax thermoelement 10 is loosely inserted into the insertion hole at the center position of the plate-shaped spring retainer 32, and the spring retainer 32 is locked at one position of the wax thermoelement 10 above the spring retainer 32. That is, the upward biasing force of the spring 19 is applied to the wax thermoelement 10 via the spring retainer 32. An appropriate number of through holes 33 are formed in the spring retainer 32 as circulation holes for mixed hot and cold water.
[0032]
The valve body 14 is fixed to the wax thermoelement 10 at a position above the spring retainer 32. In order to avoid complicating the drawing, the hatching indicating the cross section of the valve element 14 is omitted. The valve body 14 is also provided with a through hole 34 for ensuring the vertical flow of hot and cold water. A cold water inlet 35 communicating with the communication hole 24 of the water supply side water passage 11 on the outer case 20 side is formed on a side wall of the inner case 30 above the valve body 14, and the inner case below the valve body 14. A water inlet 36 for hot water communicating with the communication hole 25 of the hot water supply side water channel 12 on the outer case 20 side is formed on the side wall of the outer case 30. An outlet 37 of the mixed water is formed in the bottom wall of the inner case 30 so as to communicate with the communication hole 26 of the discharge-side water passage 13 on the outer case 20 side.
[0033]
A valve seat member 38 is airtightly fitted and mounted on the upper end side of the inner case 30 with a seal member such as an O-ring interposed therebetween. A valve seat 39 protrudes downward from the lower surface of the valve seat member 38. The upper side of the wax thermoelement 10 is vertically slidably inserted through the center of the valve seat member 38, and the side peripheral surface of the wax thermoelement 10 and the valve seat member 38 are inserted through the insertion portion of the wax thermoelement 10. A sealing member 84 such as an O-ring is provided between the insertion hole wall surface and the wax thermoelement 10 for airtight sliding of the wax thermoelement 10.
[0034]
A concave portion is formed at the center of the upper surface of the valve seat member 38, and the lower cylindrical portion 41 of the pedestal member 40 is fitted into this concave portion. The base member 40 is screwed and fixed to the upper end flange 44 of the inner case 30 using the screw 43 at the position of the flange portion 42. The upper end surface of the valve seat member 38 and the upper end surface of the inner case 30 are flush. The pedestal member 40 has an upper cylindrical portion 45 that rises upward from the upper surface side of the flange portion 42. A pedestal 46 that projects horizontally and horizontally is formed at the upper end of the upper cylindrical portion 45, and a motor is provided on the upper surface of the pedestal 46. The motor 47 is fixed to the pedestal 46 by using screws 48.
[0035]
The center of the pedestal member 40 is penetrated, and the shaft 49 is accommodated in this penetrating space. The upper end of the shaft 49 is connected to the output shaft of the motor 47, and a concave hole 83 is formed in the lower end of the shaft 49. The upper end of the wax thermoelement 10 is inserted into the concave hole 83, The upper end of the element 10 is in contact with the bottom of the concave hole 83. In the drawing, reference numeral 50 denotes a support ring. The support ring 50 is pressed and fixed to the bottom surface of the concave portion of the valve seat member 38 by the lower cylindrical portion 41 of the pedestal member 40. Of the seal member (O-ring) 84 provided at the front end.
[0036]
In the figure, reference numeral 51 denotes a spring guide for guiding the expansion and contraction of a spring 52. A spring 52 is disposed on the outer periphery of the spring 52. The upper end of the spring 52 is engaged with a step provided on the inner wall of the through space of the pedestal member 40, and the lower end is The spring guide 51 is locked by a spring receiving portion at a lower end portion. The lower end of the spring guide 51 is pressed against the upper surface of the support ring 50 by receiving the urging force of the spring 52. The upper end of the spring guide 51 is desired in the upper space 85 of the through hole of the pedestal member 40, and the spring guide 51 can move toward the upper space 85 against the urging force of the spring 52.
[0037]
A female screw is formed on the inner peripheral surface of the spring guide 51, and a male screw formed on the outer peripheral surface of the shaft 49 is screwed to the female screw. It is possible to move in the desired vertical direction while screwing and rotating with the guide 51 (the output shaft of the motor 47 and the shaft 49 are connected in such a manner as to allow the vertical movement of the shaft 49). Since the upper end of the wax thermoelement 10 is in contact with the shaft 49 by receiving the urging force of the spring 19, the wax thermoelement 10 moves with the shaft 49 as the shaft 47 moves up and down with the rotation of the motor 47. Follow and move. Therefore, the reference position (position of the set temperature) of the wax thermoelement 10 can be adjusted and set by controlling the rotation of the motor 47, and the position of the wax thermoelement 10 is forcibly moved from the reference position by forcibly rotating the motor 47. , Forced temperature control for obtaining hot and cold water at a temperature different from the set temperature is enabled.
[0038]
The connection between the wax thermoelement 10 and the motor 47 has a function of preventing the wax thermoelement 10 from being broken at an abnormally high temperature. That is, when the temperature of the mixed hot and cold water in the valve chamber 9 rises abnormally, the amount of expansion due to the downward expansion of the wax thermoelement 10 increases. If the amount of extension exceeds the gap between the valve body 14 and the wall surface of the lower water inlet 36 facing the valve body 14, the lower end of the valve body 14 will hit the wall surface and cannot move more than the gap size. In addition, a large stress is generated in the wax thermoelement 10, and the problem that the wax thermoelement 10 is broken occurs. In this regard, with the configuration of the present embodiment, even if the expansion amount of the wax thermoelement 10 due to expansion exceeds the gap size, the wax thermoelement 10 can prevent the shaft 49 and the spring 49 against the urging force of the spring 52. The configuration is such that the wax thermoelement 10 is moved upward together with the guide 51 to absorb and relax the amount of expansion and expansion exceeding the gap size, thereby preventing the breakage of the wax thermoelement 10.
[0039]
Seal grooves are provided on the outer peripheral surface of the inner case 30 at positions above the water inlet 35, an intermediate portion between the water inlet 35 and the water inlet 36, and positions below the water inlet 36. An O-ring 57 as a seal member is fitted therein.
[0040]
As shown in FIG. 1, the temperature control unit 21 is inserted (inserted) into the outer case 20, in other words, the inner case 30 in which the temperature control mechanism is incorporated is inserted into the outer case 20 from the insertion port 23. By fixing the inner case 30 and the outer case 20 with the screws 29, the hot and cold water mixing tap is assembled. In this assembled state, the hot water supply side water passage 12 communicates with the valve chamber 9 by communicating the communication hole 25 and the water inlet 36, and the water supply side water passage 11 communicates with the valve chamber 9 by communicating the communication hole 24 with the water inlet 35, The discharge-side water passage 13 communicates with the communication hole 26 and the outlet 37 to communicate with a lower space in the inner case 30. Since the lower space in the inner case 30 communicates with the valve chamber 9 through the through-hole 33, the discharge-side water passage 13 communicates with the communication hole 26 and the outlet 37 and communicates with the valve chamber 9. .
[0041]
The outer case 20 and the inner case 30 are kept in an airtight fit by the O-ring 57, and the water supply-side water passage 11 and the hot-water supply-side water passage 12 are prevented from interfering with each other by the O-ring 57.
[0042]
FIG. 4 shows a piping connection mode of the hot and cold water mixing tap. FIG. 4A shows that external pipes 60 (60a, 60b) are respectively connected to pipe connection portions at both ends of the water supply side water channel 11, and external pipes 60 (60c) are respectively connected to pipe connection portions at both ends of the hot water supply side water channel 12. , 60d) are connected. Each external pipe 60 has a flange 61 formed at the tip end thereof, and the forward pipe portion of the flange 61 is inserted into the fitting hole 58 at the end of the corresponding water channel 11, 12, and the flange 59 and the flange 61 are formed. The external pipes 60 are detachably connected to both ends of the water channels 11 and 12 by being stopped by the clip members 63.
[0043]
The clip member 63 has the form shown in FIG. 9, and has arm portions 65 erected from both ends of a connecting plate portion 64 which is curved to have elasticity, and side plate portions 66 a, 66 b of the arm portion 65. Are bent inward, and the cross section of the arm portion 65 has a U-shape. The external pipe 60 is easily connected by a one-action operation of inserting the clip member 63 into the flanges 59 and 61 so that the side plate portions 66a and 66b of the arm portion 65 sandwich the flanges 59 and 61 from both sides. In addition, a seal groove is provided on the outer peripheral surface of the external pipe 60 inserted into the fitting hole 58, and the O-ring 62 is interposed in the groove to provide an airtight connection between the water channels 11 and 12 and the external pipe 60. Has been achieved.
[0044]
In the connection state of the external pipe 60, the external pipe 60a, the water supply-side water channel 11, and the external pipe 60b form a continuous water channel in series, and this continuous water channel can function as a main water channel on the water supply side. The external pipe 60c, the hot water supply-side water channel 12, and the external pipe 60d form a continuous water channel, and this continuous water channel can function as a main water channel on the hot water supply side.
[0045]
In FIG. 4B, an external pipe 60 (60a, 60c) is connected to one end of the water supply side water channel 11 and the hot water supply side water channel 12 on the same side, and a closing plug 67 is fitted and mounted at the other end. The connection configuration between the water channels 11 and 12 and the external piping 60 (60a, 60b) is the same as that shown in FIG. 4A. The closing plug 67 has a flange 68 at the rear end, and a column-shaped plug 69 on the front side of the flange 68 is fitted into the mounting portion 58, and a sealing groove is formed on the outer peripheral surface of the plug 69. The closure plug 67 is hermetically mounted on the mounting portion 58 with the O-ring 62 interposed in the groove, and one end of the water channels 11 and 12 is closed.
Further, by attaching the clip member 63 so as to sandwich the flange 59 and the flange 68, the stopper 67 is detachably fixed to the corresponding water channels 11 and 12. The fixing structure of the stopper plug 67 and the water passages 11 and 12 using the clip member 63 is the same as the fixing structure of the external pipe 60 and the water passages 11 and 12 described above.
[0046]
In FIG. 4C, external pipes 60 (60a, 60d) are connected to opposite ends of the water supply side water channel 11 and the hot water supply side water channel 12, and the other end is closed by attaching a stopper plug 67 ( (Closed). That is, the external pipe 60a is connected to one end (inlet) 53 of the water supply-side water channel 11, and the other end (outlet) 54 is closed by attaching the stopper plug 67, and one end (outlet) of the hot water supply-side water channel 12 is closed. The part 55 is provided with a closing plug 67 and closed, and the other end (entrance part) 56 is connected to an external pipe 60d. In the configuration of FIG. 4B, the water channel by the external pipe 60 on the water supply side and the water channel by the external pipe 60 on the hot water supply side are introduced into the hot and cold water mixing tap from the same direction. However, the configuration of FIG. FIG. 4B differs from the configuration in FIG. 4B in that a water channel formed by the external piping 60 and a water channel formed by the external piping 60 on the hot water supply side are introduced into the mixing tap from opposite sides. Needless to say, in the configuration of FIGS. 4B and 4C, the connection relationship between the external pipe 60 and the closing plug 67 may be reversed left and right.
[0047]
In FIG. 1 of the embodiment, the cold water from the water supply side water channel 11 enters the valve chamber 9 through the communication hole 24 and the water inlet 35. Hot water (hotter than the set temperature) from the hot water supply side water channel 12 enters the valve chamber 9 through the communication hole 25 and the water inlet 36. Then, cold water and hot water are mixed in the valve chamber 9, and mixed hot water at a set temperature is sent from the discharge-side water passage 13 through the outlet 37 and the communication hole 26. When the temperature of the mixed hot water rises above the set temperature, the wax thermoelement 10 expands and expands downward in the vertical relationship of FIG. 1, so that the valve body 14 fixed to the wax thermoelement 10 is also integrated. As a result, a gap between the valve seat 39 and the upper end of the valve body 14 (a gap is formed in FIG. 1 so as to have no gap, but a gap is formed in an actual operation state) is formed. The opening increases the amount of cold water entering the valve chamber 9, while the amount of hot water entering the valve chamber 9 from the water inlet 36 decreases, so that the temperature of the mixed hot water is corrected in a decreasing direction to the set temperature. It is adjusted to.
[0048]
When the temperature of the mixed hot water falls below the set temperature, the wax thermoelement 10 contracts and deforms upward, so that the valve element 14 moves upward. As a result, contrary to the above case, the amount of incoming cold water decreases, Since the amount of incoming hot water increases, the temperature of the mixed hot water is corrected in the ascending direction and adjusted to the set temperature. To change the set temperature, the reference position may be adjusted by rotating the motor 47 in the desired direction in the normal or reverse direction to move the wax thermoelement 10 up and down. When the reference position is corrected to the lower position, the set temperature is corrected in the downward direction, and when the reference position is corrected to the upper position, the set temperature is corrected in the upward direction.
[0049]
FIG. 5 shows an embodiment of the connector of the hot and cold water mixing tap of the present invention. In the figure, hot and cold water mixing taps 70a and 70b having the same configuration (the same configuration as that shown in FIG. 1) are connected by connecting the water supply side water passages 11 and the water supply side water passages 12 in series. . That is, one end of the cylindrical joint member 71 is fitted into the fitting hole 58 at the end of the water supply-side water channel 11 (11a) on the side of the hot-water mixing tap 70a, and the water-supply-side water channel 11 on the hot water mixing tap 70b side. The other end of the joint member 71 is fitted into the fitting hole 58 at the end of (11b), and the clip members 63 are attached to both flanges 59 at the connection ends of the water channels 11a and 11b, whereby the water supply-side water channel 11 is provided. Are connected to each other.
[0050]
One end of a cylindrical joint member 71 is fitted into the fitting hole 58 at the end of the hot-water supply water passage 12 (12a) on the side of the hot-water mixing tap 70a, and the hot-water supply water passage 12 on the hot-water mixing tap 70b side. The other end of the joint member 71 is fitted into the fitting hole 58 at the end of (12b), and the clip member 63 is attached to both flanges 59 at the connection ends of the water channels 12a and 12b as described above. The hot water supply-side water channels 12 are connected to each other. In addition, seal grooves are provided around the outer peripheral surfaces on both end sides of the joint member 71, and the O-ring 62 is interposed in the grooves so that the joint member 71 and the corresponding fitting hole 58 can be airtightly fitted. Have been.
[0051]
FIG. 6A shows a configuration of an embodiment of another connected body of the hot and cold water mixing tap 70a and the hot and cold water mixing tap 70b. The configuration shown in FIG. 6A is different from the configuration shown in FIG. 5 in that the water supply side water passages 11 and the hot water supply side water passages 12 are connected to each other and only the joint member 71 is used without using the clip member 63. That is, the water supply side water passages 11 and the hot water supply side water passages 12 are connected to each other, and the other configuration is the same as that of the embodiment shown in FIG.
[0052]
In the case of the connection using only the joint member 71, in a case where the connection state is fixed so that the connection between the water supply-side water passages 11 and the connection between the hot water supply-side water passages 12 are not separated, for example, FIG. 6B and FIG. Such a connection fixing (connection holding) means may be provided.
6B, a flange piece 86 is formed at both ends of the water supply side water channel 11 and the hot water supply side water path 12, and a pin (U-shaped pin) 88 is inserted between holes 87 of the adjacent flange piece 86. Is used to fix the connection state. 6 (c) is formed such that a flange piece 86 at one end of the water passages 11 and 12 protrudes forward from the end face, and the forwardly projecting flange piece 86 at the one end is formed as a flange piece on the adjacent connection partner side. The holes 87 are overlapped with each other so as to overlap (coincide with) the holes 86, and screws are fixed to the overlapping holes 87 (a female screw may be formed in the overlapping one side hole 87 and fixed by screwing).
[0053]
FIG. 7 and FIG. 8 show an example of a connection configuration between a connected body of hot and cold water mixing taps 70 a and 70 b and an external pipe 60. The configuration shown in FIG. 7 corresponds to the configuration shown in FIG. 4A, in which external pipes 60 are connected to both ends of the water supply side water channel 11 and both ends of the water supply side water channel 12 in the connected body. That is, the external pipe 60a is connected to one end 53 of the water supply-side water channel 11a of the hot-water mixing tap 70a, and the external pipe 60b is connected to the other end 54 of the water-supply-side water channel 11b of the hot water mixing tap 70b. An external pipe 60c is connected to one end 55 of the hot water supply water passage 12a, and an external pipe 60d is connected to the other end 56 of the hot water supply water passage 12b of the hot water mixing tap 70b. The connection configuration between these external pipes 60 (60a, 60b, 60c, 60d) and the corresponding water channels 11, 12 is the same as that shown in FIG. 4A.
[0054]
In the configuration shown in FIG. 7, the external pipe 60a, the water supply-side water path 11a, the water supply-side water path 11b, and the external pipe 60b form a continuous water path in series, and this continuous water path functions as a main water path on the water supply side. It is possible to make it. Further, the external pipe 60c, the hot water supply side water path 12a, the hot water supply side water path 12b, and the external pipe 60d form a continuous water path, and this continuous water path can be made to function as a main water path on the hot water supply side.
[0055]
The connection configuration of the external pipe 60 shown in FIG. 8A corresponds to the connection configuration shown in FIG. 4B, and a water supply side water channel by the external pipe 60a and a water supply side water channel by the external pipe 60c are connected. The external pipe 60a is connected to one end 53 of the water supply-side water passage 11a of the hot-water mixing tap 70a, and a stopper 67 is connected to the other end 54 of the water-supply-side water passage 11b of the hot water mixing tap 70b. An external pipe 60c is connected to one end 55 of the hot-water supply water passage 12a of the hot-water mixing tap 70a, and a closing plug 67 is mounted to the other end 56 of the hot-water supply water passage 12b of the hot-water mixing tap 70b. The configuration of connection and attachment of these external pipes 60a and 60b and the stopper plug 67 is the same as that shown in FIG.
[0056]
The connection configuration of the external pipe 60 shown in FIG. 8 (b) corresponds to that shown in FIG. 4 (c), and connects the water supply side water channel by the external pipe 60a and the hot water supply side water channel by the external pipe 60d. An external pipe 60a is connected to one end 53 of the water supply-side water passage 11a of the hot-water mixer tap 70a, and a stopper is plugged into the other end 54 of the water-supply-side water passage 11b of the hot water mixer tap 70b. 67 is attached, a closing tap 67 is attached to one end 55 of the hot water supply water passage 12a of the hot water mixing tap 70a, and an external pipe 60d is connected to the other end 56 of the hot water supply water passage 12b of the hot water mixing tap 70b. . The configuration of connection and attachment of these external pipes 60a and 60d and the stopper plug 67 is the same as that shown in FIG. In the configuration of FIG. 8B as well, the connection (mounting) relationship between the external pipe 60a of the water supply side water channel 11 and the closing plug 67 is reversed, and the connection (mounting) of the external pipe 60d of the hot water supply side water channel 12 and the closing plug 67. It goes without saying that the relationship can be reversed.
[0057]
The configuration examples shown in FIGS. 7 and 8 connect the hot and cold mixing taps 70a and 70b with the configuration shown in FIG. 5, but, of course, similarly apply to the connection body of the hot and cold mixing taps shown in FIG. Is what is done.
[0058]
In the connected body of the hot and cold water mixing taps 70a and 70b in the above embodiment, the set temperature of the hot and cold water mixing tap 70a and the setting temperature of the hot and cold water mixing tap 70b are set to different temperatures. Mixed hot and cold water with different hot water temperatures are sent from the plugs 70a and 70b to different locations.
[0059]
FIG. 10 shows an embodiment of a water heater according to the present invention. In the figure, a water supply channel 1 in a water heater 72 is branched into a water supply channel 1a and a water supply channel 1b, and the water supply channel 1a is provided at a water inlet end of a water supply side water channel 11 of a connected body 73 of hot and cold water mixing taps 70a, 70b, 70c. It is connected and the water supply channel 1 b is introduced into the heating means 2. The heating means 2 may have a function of heating the introduced cold water to produce hot water. Examples of the heating means 2 include a means for burning and heating, a heating means for electric energy, and a heating means for a solar system using sunlight. Various means can be employed. Hot water (high-temperature hot water) generated by the heating means 2 is connected to the water inlet end of the hot water supply side water passage 12 of the connecting member 73 via the hot water supply passage 3.
[0060]
In this example, the connecting body 73 is formed by connecting three hot-water mixing taps 70a, 70b, and 70c by connecting the water supply-side water passages 11 and the hot-water supply-side water passages 12 in series. Specifically, FIG. The hot water mixer taps 70a, 70b, and 70c are sequentially connected in the same manner as in the type shown in FIG. 8A, and one end 53 of the water supply side water channel 11a of the first hot water mixer tap 70a is connected to the water supply channel 1a (see FIG. 8A). Similarly, the hot water supply path 3 (corresponding to the external pipe 60c in FIG. 8A) is connected to one end 55 of the hot water supply side water path 12a of the hot water mixing tap 70a, and A stopper 67 is attached to the other end (outlet) 54 of the water supply side water channel 11 (11c) of the plug 70c, and the other end (outlet) 56 of the hot water supply side water passage 12 (12c) of the same hot water mixing tap 70c. By attaching the stopper plug 67, the connection shown in FIG. Body 73 is formed.
[0061]
The water heater 72 shown in FIG. 10 is configured by connecting the corresponding mixing water passages 7a, 7b, 7c to the discharge-side water passages 13 of the respective hot-water mixing taps 70a, 70b, 70c.
[0062]
By setting the set temperature of the hot and cold mixing of each of the hot and cold mixing taps 70, 70b, and 70c to be different, the mixing temperature T is output from the hot and cold mixing tap 70a. 1 Hot water is supplied, and the mixing temperature T 2 Hot water is supplied, and the mixing temperature T 3 Hot water of hot water is sent.
[0063]
As is clear from a comparison between the system configuration of FIG. 10 of the present embodiment and the system configuration of the related art shown in FIG. 15, each of the water heaters 72 of the present embodiment is provided with a water mixing tap shown in FIG. Since the branch pipes 4a, 4b, 4c, 5a, 5b, and 5c for connecting to the pipes 6a, 6b, and 6c are not required, the pipe connection work is facilitated, and the space for the pipes is reduced to improve the space efficiency. In addition to this, it is possible to achieve a reduction in system construction costs (equipment costs).
[0064]
Note that the present invention can take various forms without being limited to the above embodiments. For example, in the above embodiment, the water supply-side water channel 11, the hot-water supply-side water channel 12, and the discharge-side water channel 13 of the hot and cold water mixing tap are integrally formed with the outer case 20 (inseparable structure), but these water channels 11, 12, One or more of the 13 may be formed of a water channel forming member separate from the outer case 20, and the water channel forming member having this water channel may be detachably attached to the outer case 20.
[0065]
FIG. 11 shows a configuration example of a detachable type of a water channel forming member. 11A, an insertion hole 75 is provided in the outer case 20 side, and an insertion tube portion 76 is formed so as to protrude from a channel forming member 74 in which the water supply side water channel 11 is provided. A seal groove is provided on the surface, the O-ring 62 is accommodated therein, and in this state, the insertion tube portion 76 is inserted into the insertion hole 75, and the water channel forming member 74 is mounted on the outer case 20. In the illustrated example, a female-side insertion hole 75 is provided on the outer case 20 side, and a male-side insertion tube portion 76 is formed to protrude on the waterway forming member 74 side. A configuration may be adopted in which the male insertion tube portion is formed to protrude on the case 20 side, and the female channel insertion hole is provided on the water channel forming member 74 side, and the water channel forming member 74 is mounted on the outer case 20.
[0066]
FIG. 11B shows a case in which connecting cylinder portions 77 and 78 are formed on the outer case 20 side and the water channel forming member 74 side on which the water supply side water channel 11 is formed, and the connecting cylinder portion 77 on the outer case 20 side and the water channel. The distal end surface of the connecting member 78 on the side of the forming member 74 abuts, and in this state, the clip 79 (not shown in FIG. 11B) is attached with the flanges 79 and 80 interposed therebetween, thereby providing a water channel. The forming member 74 is mounted on the outer case 20. In this case, a sealing groove is provided on at least one end face of the contact end faces of the connection cylinder portion 77 and the connection cylinder portion 78, and a sealing member such as an O-ring is accommodated in the groove to achieve airtight connection. Is desirable.
[0067]
In FIG. 11, an example is described in which the water channel forming member 74 forming the water supply side water channel 11 is attached to the outer case 20, but the water channel forming member 74 forming the hot water supply side water channel 12 is also detachably attached to the outer case 20. It may be configured to be mounted.
[0068]
When these water channel forming members 74 are configured in a detachable manner, and when applied to a connected body of a plurality of hot water mixing taps, the water channel forming members 74 may be attached to each hot water mixing tap. In this case, a pipe connecting portion is formed at the end of the water channel forming member 74, and they are sequentially connected in series.), A length corresponding to the total water channel length of the connected body of the plurality of hot water mixer taps, or a length longer than that A water channel forming member 74 having a length is prepared, and an insertion tube portion 76 and a connection tube portion 78 are attached to a predetermined position of the water channel forming member 74 (a mounting position corresponding to each hot water mixing tap) of the hot water mixing tap of the connected body. A plurality of water passage forming members 74 may be formed at intervals and may be mounted collectively on the outer case 20 of a plurality of hot and cold water mixing taps. In this case, the trouble of sequentially connecting the water channel forming members 74 of the respective hot and cold mixing taps can be omitted.
[0069]
Further, in the above-described embodiment, for example, as shown in FIG. 3A, both the water supply-side water channel 11 and the hot-water supply-side water channel 12 are straight water channels, but it is not always necessary to make the water channel straight (over the entire water channel). Good. The point is that both ends 53 and 54 of the water supply side water channel 11 are directed straight along the same straight line (a straight line connecting the center of the water channel of one end 53 and the center of the water channel of the other end 54), and on the hot water supply side. Both ends 55 and 56 of the water channel 12 are directed straight along another identical straight line (a straight line connecting the center of the water channel at one end 55 and the center of the water channel at the other end 56), and It is sufficient that the straight directions of both ends 55 and 56 are parallel (the above-mentioned two straight lines are parallel), and the center of the water channels 11 and 12 may be curved or the like.
[0070]
In the above embodiment, an O-ring is used as a seal member. However, a Y-packing, a flat packing, or the like may be used, and a seal member other than a liquid seal can be used. When a liquid seal is used, once the part where the seal is provided is removed, the sealing function is damaged. However, if a seal member such as an O-ring or a Y packing is used as the seal member, the seal member may be damaged. Even if the part provided with is repeatedly attached and detached, the sealing function is not lost, and the effect that the sealing member can be used repeatedly without replacement is obtained.
[0071]
Further, in the above-described embodiment, the water supply side water channel 11 and the hot water supply side water channel 12 are through water channels with both ends opened, and when the water channel end is closed, the closing plug 67 is attached and closed. The water passages 11 and 12 may be one end opening and the other end closing type in which the end of the water passage to be closed is closed by a closing wall. In this case, the stopper plug 67 becomes unnecessary.
[0072]
Further, in the example of FIG. 5A, the connection between the water supply-side water passages 11a and 11b and the connection between the hot-water supply-side water passages 12a and 12b are performed using the clip member 63 and the joint member 71, but only the clip member 63 is used. The connection may be performed by using
In this case, a sealing member such as an O-ring or Y packing is interposed between the contact surfaces of the water channel end faces to be connected. The same can be applied to the case where the water channels 11, 12 and the external pipe 60 are connected. In addition, the water channels 11, 12 and the external pipe 60 can be connected using a joint or other means.
[0073]
Furthermore, in the above embodiment, the fitting holes (mounting portions) 58 formed at the ends of the water channels 11 and 12 have a shape having a step portion whose diameter at the end portion is larger than the diameter of the water channel at the center side. Instead of providing such a stepped portion, for example, as shown in FIG. 12, a configuration of a pipe connecting portion in which the diameter of the water channel on the center side is the same as the diameter on the end side may be adopted. In the example shown in FIG. 12, a flange 89 is formed from the outer peripheral surface side of the central portion of the joint member 71, one end of the joint member 71 is fitted into the water channel 11 (12) on the hot / water mixer tap 70 a side, and the other end is The flange 59 of the water channel 11 (12) on the hot water mixer tap 70a side and the flange 59 of the water channel 11 (12) on the hot water mixer tap 70b side fit into the water channel 11 (12) on the hot water mixer tap 70b side. As shown in FIG. 5 (a), a clip member 63 (not shown in FIG. 12) is attached between both flanges 59 so that the hot water mixing tap 70a and the hot water mixing tap 70b Are connected (connected) with each other.
[0074]
Further, in the above embodiment, the shapes of both ends of the water supply side water channel 11 and the hot water supply side water channel 12 are the same shape, but may be different shapes. FIG. 13 shows an example. In the example of FIG. 13, the insertion part 90 is formed ahead of the flange 59 a provided on one end side of the water channel 11 (12), and the other end side is formed as the fitting hole (mounting part) 58. The outer diameter is dimensioned to fit air-tightly into the insertion hole 58 via the O-ring 62. With this configuration, the insertion portion 90 of the water channel 11 (12) of the hot water mixing tap 70 on the other side is inserted into the fitting hole 58 of the water channel 11 (12) of the hot water mixing tap 70 on the one side. Thereby, the water supply-side water passages 11 and the water supply-side water passages 12 of the plurality of water mixing taps 70 can be connected (connected) without the need for the joint member 71.
[0075]
In the above embodiment, since the height positions of the water supply side water channel 11 and the hot water supply side water channel 12 are different, the water supply side water channel 11 and the hot water supply side water channel 12 may have the same diameter, and the shape of both ends of the water channels 11 and 12 may be the same. Although there is no problem that the water supply side water channel 11 and the hot water supply side water channel 12 are erroneously connected, when the water supply side water channel 11 and the hot water supply side water channel 12 are at the same height (for example, in FIG. When the water passages 12 are at the same height), there is a case where the hot water mixing tap 70a is erroneously connected to the hot water mixing tap 70b while being rotated by 180 degrees. When such erroneous connection (erroneous connection) occurs, the water supply-side water passage 11 of the one-side hot-water mixing tap and the hot-water supply-side water passage 12 of the other side hot water mixing tap are connected to each other. In the hot and cold water mixing tap, cold water enters through the hot water inlet 36 and hot water enters through the cold water inlet 35. Then, for example, when the temperature of the mixed hot and cold water in the valve chamber 9 rises above the set temperature, the wax thermoelement 10 moves downward to increase the amount of water input from the water inlet 35 (the amount of hot water), and Since the amount of incoming water (the amount of incoming cold water) from the water outlet 36 is controlled in the decreasing direction, the temperature of the mixed hot water is further controlled in the upward direction, causing a problem that the temperature control function does not operate properly and the runaway occurs.
[0076]
In this regard, as shown in FIG. 13, if the shapes of both ends of the water channels 11 and 12 are different, the occurrence of the above-described erroneous connection can be prevented, and the above-described problem due to the erroneous connection can be prevented. In addition, even when the water supply side water channel 11 and the hot water supply side water channel 12 are formed at the same height and the shapes of both ends of the water channels 11 and 12 are made the same, the diameter of the water supply side water channel 11 and the diameter of the hot water supply side water channel 12 are also reduced. If formed differently, the distinction between the water supply side water channel 11 and the hot water supply side water channel 12 can be seen at a glance, so that the above-described problem of incorrect connection can be prevented. Of course, even when the water supply side water channel 11 and the hot water supply side water channel 12 have the same diameter, if the identification means such as a mark for distinguishing the water supply side water channel 11 and the hot water supply side water channel 12 is provided, a problem of incorrect connection (wrong connection) will occur. Can be prevented. In order to completely prevent the occurrence of such erroneous connection, the connection of the water supply-side water passages 11 and the connection of the water supply-side water passages 12 with one of the connected water mixing taps is 180 degrees from the normal position. The shape of the end of the water channel may be changed so as to be possible, or the formation position (for example, the height position) of the water supply side water channel 11 and the hot water supply side water channel 12 may be changed.
[0077]
Further, in the above-described embodiment, the external pipe 60 is connected to the pipe connection portion of the water supply side water channel 11 and the hot water supply side water channel 12, but a fluid device (for example, a flow rate measuring device or the like) is connected to this pipe connection portion. You may.
[0078]
Further, in the above-described embodiment, the temperature control mechanism 31 incorporated in the hot and cold water mixing tap is configured by using the wax thermoelement 10. However, the temperature control mechanism mixes cold water and hot water to be supplied and adjusts the set temperature. Any other structure may be used as long as it has a function of producing and sending mixed hot and cold water, and a temperature control mechanism having no wax thermoelement may be used.
[0079]
Further, in the water heater 72 (see FIG. 10) of the above embodiment, the following modified configuration is possible. For example, an external pipe 81 is connected to a pipe connection portion on the terminal side of the hot water supply water tap 12 of the hot water mixing tap 70c, and the hot water supply path 3 and the hot water supply water passage 12 of the hot water mixing taps 70a, 70b, 70c, and the external pipe 81 are connected. May be made to function as a main water channel on the hot water supply side, and an external pipe 82 is connected to a pipe connection portion on the terminal side of the water supply side water channel 11 of the hot and cold water mixing tap 70c, and the water supply channel 1 (1a) A water supply-side water passage 11 of the water / water mixer taps 70a, 70b, 70c and a series continuous water passage with the external piping 82 may function as a main water passage on the water supply side. In the case of forming a connected body of hot water mixer taps, the number of hot water mixer taps is not limited to that of the above-described embodiment, and a required number of hot water mixer taps may be connected appropriately.
[0080]
Further, in the hot and cold water mixing tap of the embodiment, the temperature control unit 21 and the external case 20 are fixed by screwing means using screws 29. It is only necessary to fix detachably, and other fixing means using a clip or the like may be used. In particular, if the fixing means is a simple means, the attaching and detaching work can be performed easily, so that the workability is improved. It is effective on.
[0081]
【The invention's effect】
The water / water mixer tap of the present invention incorporates a temperature control mechanism in the internal case, integrates the temperature control mechanism with the internal case, and configures the temperature control unit as a cassette type (cartridge type), and attaches and detaches the temperature control unit to and from the external case. Because it is configured to be freely inserted (inserted), when repairing, maintaining, or replacing the temperature control mechanism, it is not necessary to remove the external case connected to the piping from the piping with difficulty. The adjustment unit can be pulled out of the external case to perform the operation. Therefore, work such as repair, maintenance, and replacement of the temperature control mechanism can be easily and efficiently performed.
[0082]
In particular, in a configuration in which the insertion port of the temperature control unit in the outer case is on the opposite side to the discharge-side water channel, the piping connected to the discharge-side water channel does not interfere with the attachment and detachment of the temperature control unit to and from the external case. The effect that work can be performed very easily is acquired.
[0083]
In addition, both ends of the water supply-side water channel of the hot-water mixer tap are directed straight along the same straight line, and both ends of the hot-water supply water channel are also formed straight directions along another same straight line. In a configuration in which the direction and the directions of both ends of the water supply side water channel are parallel, the pitch interval between the hot water supply side water channel and the water supply side water channel of the hot water mixing tap is equal at both ends of the water channel, so that a plurality of hot water mixing taps are connected. In such a case, the hot water supply side water passages of each hot and cold water mixing tap and the water supply side water passages of each hot and cold water mixing tap are connected directly or via a joint without the necessity of an external piping for connecting the hot and cold water mixing taps. A plug assembly can be constructed.
[0084]
Further, by configuring the water supply-side water channel of the hot-water mixing tap as a through water channel, this water-supply-side water channel functions as a main water channel on the water-supply side, and by configuring the hot-water supply water channel of the hot-water mixing tap as a through water channel, This hot water supply side water channel can function as a hot water supply side main water channel.
[0085]
Further, the connector of the hot and cold mixing tap of the present invention does not require an external pipe for connecting the hot and cold mixing taps to each other, and has a connection configuration in which the hot water supply side water passages and the water supply side water passages of the respective hot and cold mixing taps are connected. Therefore, as shown in FIG. 15 of the conventional example, many branch pipes 4a, 4b, 4c, 5a, 5b, and 5c are not required. Therefore, pipe connection work is facilitated, and extra piping space can be saved, so that space efficiency can be improved, and a compact device (system) can be constructed, and the cost of constructing a device (system) can be reduced.
[Brief description of the drawings]
FIG. 1 is a configuration explanatory view of an embodiment of a hot and cold water mixing tap according to the present invention.
FIG. 2 is an explanatory view of a separated state of a temperature control unit 21 and an outer case 20 constituting the hot and cold water mixing tap shown in FIG.
FIG. 3 is a diagram showing an external appearance and a water channel configuration of the hot and cold water mixing tap of the embodiment.
FIG. 4 is a view showing various connection modes between a water channel of a hot and cold water mixing tap and an external pipe of the embodiment.
FIG. 5 is an explanatory view of an embodiment of the connector of the hot and cold water mixing tap according to the present invention.
FIGS. 6A and 6B are explanatory views showing another embodiment of a water channel connection configuration between hot and cold water mixing taps, wherein FIG. 6A is a diagram in which fixing means is not provided at a channel connection portion, and FIG. It is a figure which shows the example which provided the fixing means in the connection part, (c) is a figure which shows the example in which another fixing means was provided in the pipeline connection part.
FIG. 7 is an explanatory diagram of a connection mode between a connected body of a hot and cold water mixing tap and an external pipe in the embodiment.
FIG. 8 is an explanatory diagram of another connection mode between the connection body of the hot and cold water mixing tap and the external pipe in the embodiment.
FIGS. 9A and 9B are explanatory diagrams of a configuration of a clip member used as a connection fixing means in the embodiment, where FIG. 9A is a front view and FIG. 9B is a side view.
FIG. 10 is a configuration explanatory view of an embodiment of a water heater according to the present invention.
FIG. 11 is an explanatory view of a configuration example in which a water supply side water channel and a hot water supply side water channel are formed in a water channel forming member 74 so that the water supply side water channel and the hot water supply side water channel can be detachably attached to an outer case of a hot water mixing tap.
FIG. 12 is an explanatory diagram of another configuration example of a pipe connection portion formed at an end of a water supply side water channel and a hot water supply side water channel.
FIG. 13 is an explanatory view of an example in which the shape of a pipe connecting portion formed at one end and the other end of the water supply side water channel and the hot water supply side water channel is different.
FIG. 14 is an explanatory view of a conventional hot and cold water mixing tap proposed by the applicant in advance.
FIG. 15 is a diagram showing a conventional example of a hot water supply system in which a plurality of hot and cold water mixing taps are arranged.
[Explanation of symbols]
10 wax thermoelement
11 Water supply side waterway
12 Hot water supply side waterway
13 Discharge side waterway
20 outer case
21 Temperature control unit
31 Temperature control mechanism
60 External piping
63 clip member
67 Stopcock
70 (70a, 70b, 70c)
72 water heater

Claims (16)

給湯側水路から入水する湯と給水側水路から入水する冷水とを混合して設定温度の混合水を吐出側水路へ吐出する調温機構を内蔵する湯水混合栓において、前記調温機構は内部ケースに内蔵されて温調機構と内部ケースとは一体化された温調ユニットとして構成され、前記内部ケースが外部ケース内に差し込み挿入されて温調ユニットは外部ケースに対して着脱自在に挿入装着されており、前記内部ケースには前記湯の入水口と前記冷水の入水口と前記混合水の出口とが形成され、外部ケースには前記給湯側水路と前記給水側水路と前記吐出側水路とが設けられるとともに、前記給湯側水路と前記湯の入水口とを連通する連通孔と、前記給水側水路と前記冷水の入水口とを連通する連通孔と、前記吐出側水路と前記混合水の出口とを連通する連通孔とが形成されている湯水混合栓。In a hot and cold water mixing tap having a built-in temperature control mechanism for mixing hot water supplied from a water supply side water channel and cold water supplied from a water supply side water channel and discharging mixed water at a set temperature to a discharge side water channel, the temperature control mechanism is an inner case. The temperature control mechanism and the inner case are built in as an integrated temperature control unit, and the internal case is inserted and inserted into the outer case, and the temperature control unit is removably inserted and mounted to the outer case. The inner case has an inlet for the hot water, an inlet for the cold water, and an outlet for the mixed water, and the outer case has the hot water supply-side water passage, the water supply-side water passage, and the discharge-side water passage. A communication hole that is provided and communicates the hot water supply-side water passage and the hot water inlet; a communication hole that communicates the water supply-side water passage and the cold water inlet; a discharge-side water passage and an outlet of the mixed water; Communicate with Mixing faucet in which the through hole is formed. 給湯側水路と給水側水路は外部ケースの互いに反対側となる側壁に設けられ、給湯側水路の両端部は同一直線に沿った真直向きと成し、給水側水路の両端部も別の同一直線に沿った真直向きと成し、給湯側水路の両端部の向きは給水側水路の両端部の向きに平行と成している請求項１記載の湯水混合栓。The hot water supply side water channel and the water supply side water channel are provided on the opposite side walls of the outer case, and both ends of the hot water supply side water channel are directed straight along the same straight line, and both ends of the water supply side water channel are another same straight line. The hot and cold water mixing tap according to claim 1, wherein the hot water mixing faucet is formed in a straight direction along the water supply side, and the directions of both ends of the hot water supply side water path are parallel to the directions of both ends of the water supply side water path. 吐出側水路の向きは給湯側水路および給水側水路の向きに対し略直交する方向の方位とした請求項２記載の湯水混合栓。3. The hot and cold water mixing tap according to claim 2, wherein the direction of the discharge side water channel is a direction substantially perpendicular to the directions of the hot water supply side water channel and the water supply side water channel. 外部ケースにおける温調ユニットの挿入口は吐出側水路とは反対側となる位置に形成されている請求項１乃至請求項３のいずれか１つに記載の湯水混合栓。The hot / water mixer tap according to any one of claims 1 to 3, wherein an insertion port of the temperature control unit in the outer case is formed at a position opposite to the discharge-side water channel. 給湯側水路と給水側水路と吐出側水路は成型又は鋳造又は鍛造により外部ケースと一体に形成されている請求項１乃至請求項４のいずれか１つに記載の湯水混合栓。The hot and cold water mixing tap according to any one of claims 1 to 4, wherein the hot water supply-side water channel, the water supply-side water channel, and the discharge-side water channel are formed integrally with the outer case by molding, casting, or forging. 給湯側水路と給水側水路と吐出側水路の少なくとも１つは外部ケースとは別個の水路形成部材により形成され、この水路形成部材は外部ケースに着脱自在に装着されている請求項１乃至請求項４のいずれか１つに記載の湯水混合栓。At least one of the hot water supply side water channel, the water supply side water channel, and the discharge side water channel is formed by a water channel forming member separate from the outer case, and the water channel forming member is detachably attached to the outer case. 4. The hot and cold water mixing tap according to any one of 4. 給湯側水路および給水側水路のそれぞれの端部には管路接続部が形成されている請求項１乃至請求項６のいずれか１つに記載の湯水混合栓。The hot and cold water tap according to any one of claims 1 to 6, wherein a pipe connection portion is formed at each end of the hot water supply side water channel and the water supply side water channel. 給湯側水路の出口部と給水側水路の出口部の一方又は両方の端部には閉止栓の装着部が形成され、残りの水路端部には管路接続部が形成されている請求項１乃至請求項６のいずれか１つに記載の湯水混合栓。2. A closure plug mounting portion is formed at one or both ends of the outlet of the hot water supply side water channel and the outlet portion of the water supply side water channel, and a conduit connection portion is formed at the remaining water channel end. The hot and cold water mixing tap according to claim 6. 管路接続部には外部配管又は流体機器が接続されている請求項７又は請求項８に記載の湯水混合栓。The hot and cold water mixing tap according to claim 7 or 8, wherein an external pipe or a fluid device is connected to the conduit connection portion. 給水側水路と給湯側水路は貫通水路として構成し、給水側水路と給湯側水路の一方又は両方を主幹水路として機能させた請求項１乃至請求項９のいずれか１つに記載の湯水混合栓。The hot and cold water mixing tap according to any one of claims 1 to 9, wherein the water supply side water channel and the hot water supply side water channel are configured as through water channels, and one or both of the water supply side water channel and the hot water supply side water channel function as a main waterway. . 請求項７記載の湯水混合栓が複数連結されてなる湯水混合栓の連結体であって、隣り合う一方側の湯水混合栓の給水側水路の端部に他方側の湯水混合栓の給水側水路の端部が管路接続部を介して接続されるという如くして、複数の湯水混合栓の給水側水路が順次直列接続され、かつ、隣り合う一方側の湯水混合栓の給湯側水路の端部に他方側の湯水混合栓の給湯側水路の端部が管路接続部を介して接続されるという如くして、複数の湯水混合栓の給湯側水路が順次直列接続されている湯水混合栓の連結体。A hot water mixer tap connected to a plurality of the hot water mixer taps according to claim 7, wherein a water supply side water path of an adjacent hot water mixer tap is connected to an end of a water supply water path of an adjacent one of the hot water mixer taps. The water supply side water passages of the plurality of water / water mixing taps are sequentially connected in series, and the ends of the hot water supply side water passages of the adjacent one of the water / water mixing taps are connected such that the ends of A hot / water mixer tap in which a plurality of hot / water mixer taps are sequentially connected in series such that an end of a hot water supply channel of the other hot / water mixer tap is connected to the section via a pipe connection portion. Concatenation of 請求項７記載の湯水混合栓が１個以上連結されてその１個以上の連結の少なくとも片端に請求項８記載の湯水混合栓が連結されてなる湯水混合栓の連結体であって、隣り合う各湯水混合栓は管路接続部を介して給湯側水路同士、かつ、給水側水路同士が接続されて複数の湯水混合栓が連結され、連結端に位置する請求項８記載の湯水混合栓の閉止栓の装着部には水路を閉止する閉止栓が装着されている湯水混合栓の連結体。A hot-water mixer tap connected to at least one hot-water mixer tap according to claim 7 and connected to at least one end of at least one of the one or more connectors, and adjacent to each other. The hot water mixer tap according to claim 8, wherein each hot water mixer tap is connected to a plurality of hot water mixer taps by connecting the hot water supply side water channels via a pipe connection part, and the plurality of hot water mixer taps are connected to each other. A connecting body of a hot and cold mixing tap having a closing tap for closing a water channel in a mounting portion of the tap. 管路接続部はその端面側から筒状のジョイント部材を嵌入する嵌入穴部を有して構成され、一方側の湯水混合栓の管路接続部の嵌入穴部に前記ジョイント部材の一端側が嵌入され、他方側の湯水混合栓の管路接続部の嵌入穴部に前記ジョイント部材の他端側が嵌入され、以って、一方側の湯水混合栓の管路接続部と他方側の湯水混合栓の管路接続部とがジョイント部材を介して接続されている請求項１１又は請求項１２記載の湯水混合栓の連結体。The pipe connection portion has an insertion hole into which a cylindrical joint member is inserted from the end face side, and one end of the joint member is inserted into the insertion hole of the pipe connection portion of one of the hot and cold water mixing taps. The other end of the joint member is fitted into the fitting hole of the pipe connection part of the other side hot / water mixer tap, whereby the pipe connection part of one side hot / water mixer tap and the other side hot / water mixer tap are fitted. 13. The water / water mixer tap assembly according to claim 11, wherein the pipe connection portion is connected via a joint member. 管路接続部はその端面部に鍔を有しており、一方側の湯水混合栓の管路接続部の鍔と他方側の湯水混合栓の管路接続部の鍔とが接合された状態で、クリップ部材が両鍔を跨って挟み装着され、以って、一方側の湯水混合栓の管路接続部と他方側の湯水混合栓の管路接続部とが接続されている請求項１１又は請求項１２記載の湯水混合栓の連結体。The pipe connection portion has a flange on its end face, and the flange of the pipe connection portion of the hot water mixing tap on one side and the flange of the pipe connection portion of the hot water mixing tap on the other side are joined. The clip member is sandwiched across both flanges and attached, whereby the pipe connection part of the hot water mixer tap on one side and the pipe connection part of the hot water mixer tap on the other side are connected. A connected body of the hot and cold mixing tap according to claim 12. 湯水混合栓が複数連結されたその連結端部の管路接続部には外部配管又は流体機器が接続されている請求項１１乃至請求項１４のいずれか１つに記載の湯水混合栓の連結体。15. The connected body of hot and cold mixing taps according to any one of claims 11 to 14, wherein an external pipe or a fluid device is connected to a pipe connection portion at a connection end of the plurality of mixing taps. . 請求項１乃至請求項１０に記載のいずれか１つに記載された湯水混合栓又は請求項１１乃至請求項１５のいずれか１つに記載の湯水混合栓の連結体を有していることを特徴とする温水器。A water / water mixer tap according to any one of claims 1 to 10 or a connected body of the water / water mixer tap according to any one of claims 11 to 15. Water heater characterized.
JP2003015054A 2003-01-23 2003-01-23 Hot-cold water mixing faucet, its connector and water heater having the same Pending JP2004225822A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011043188A (en) * 2009-08-20 2011-03-03 Fuji Koki Corp Composite valve
JP2014114923A (en) * 2012-12-12 2014-06-26 Tgk Co Ltd Control valve unit and mixing valve
JP2014129885A (en) * 2014-03-07 2014-07-10 Fuji Koki Corp Switching valve
JP2014145432A (en) * 2013-01-29 2014-08-14 Lixil Corp Combination faucet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011043188A (en) * 2009-08-20 2011-03-03 Fuji Koki Corp Composite valve
JP2014114923A (en) * 2012-12-12 2014-06-26 Tgk Co Ltd Control valve unit and mixing valve
JP2014145432A (en) * 2013-01-29 2014-08-14 Lixil Corp Combination faucet
JP2014129885A (en) * 2014-03-07 2014-07-10 Fuji Koki Corp Switching valve

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