JP4582513B2 - Faucet - Google Patents
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- JP4582513B2 JP4582513B2 JP2000335315A JP2000335315A JP4582513B2 JP 4582513 B2 JP4582513 B2 JP 4582513B2 JP 2000335315 A JP2000335315 A JP 2000335315A JP 2000335315 A JP2000335315 A JP 2000335315A JP 4582513 B2 JP4582513 B2 JP 4582513B2
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Description
【0001】
【発明の属する技術分野】
この発明は、給水栓に関し、より詳細には、壁面等に取り付けられて例えば洗濯機等への給水に好適に用いられる給水栓に関する。
【0002】
【従来の技術】
壁面に取り付けられて洗濯機への給水に用いられる給水栓として、図3に示すものが知られている。図3の給水栓(200)は、これの給水栓本体(201)が、鋳物でつくられていて、後端部に後方に開口した水流入口(202)を有するとともに、前端部に、上方に開口した弁体ユニット収容口(203)と、下方に開口した水流出口(204)とを有しており、前端部内には、側面より見て略横U形の隔壁(205)が給水栓本体(201)と一体に設けられている。隔壁(205)の上側水平部(205A)に、通水孔(206)が形成されていて、通水孔(206)の上側周縁部に弁座(207)が設けられている。給水栓本体(201)は、隔壁(205)よりも前方に2次側流路を設ける必要があることから、その前端部が前方に大きく膨らんだ形状となされている。一方、給水栓本体(201)内にこれの弁体ユニット収容口(203)を通じて収容される弁体ユニット(208)は、弁座(207)に対して当接または離間させられるゴム製弁体(209)と、下端部に弁体(209)が取り付けられ、上端部にハンドル(210)が取り付けられかつ弁体ユニット収容口(203)に設けられた雌ねじ(203A)にねじ嵌められる雄ねじ(211A)を有するスピンドル(211)とで構成されている。スピンドル(211)と弁体ユニット収容口(203)との間には、これらの隙間をシールするゴム製パッキン(212)が介在されており、同パッキン(212)は、弁体ユニット収容口(203)の上端部外周面に設けられた雄ねじ(203B)にねじ嵌められた押さえナット(213)によって上から押さえられている。
【0003】
【発明が解決しようとする課題】
図3に示すような複雑な内部構造を有する給水栓本体(201)を鋳物でつくる場合、それに対応した複雑な構造の中子を使用しなければならず、型内に溶融金属を流し込んだ際に中子の細い部分が折れたり、溶融金属の熱を受けて中子から発生したガスが十分に抜けなかったりして、不良品が発生することが少なからずあり、それだけ余分なコストがかかっていた。
【0004】
また、上記のような構造上の制約により、給水栓本体(201)をその前端部が前方に大きく膨らんだ形状とせざるを得ないため、見栄えが良くない上、壁面からの突出長さを短くして省スペース化を図るのにも限界があった。
【0005】
さらに、上記給水栓(200)では、弁体(209)およびスピンドル(211)と弁体ユニット収容口(203)との隙間をシールしているパッキン(212)がいずれもゴム製のものであるので、長期間使用していると変形、劣化等が起こり、漏水の問題が生じるおそれがあった。また、上記給水栓(200)を全自動洗濯機への給水に使用した場合、洗濯機の水導入部において自動的に止水が行われた際に、給水栓本体(201)内を水が逆流してスピンドル(211)と弁体ユニット収容口(203)との隙間をシールしているゴム製パッキン(212)に高い水圧がかかってしまう。したがって、この場合には、特にパッキン(212)のシール機能が低下し易く、スピンドル(211)と弁体ユニット収容口(203)との隙間から漏水する問題があった。
【0006】
この発明の目的は、壁面等に取り付けられて例えば洗濯機等への給水に用いられる給水栓について、給水栓本体の不良品発生率の低減およびコストダウンを実現し、給水栓本体の見栄えを良くし、また、省スペース化を可能にすることにある。この発明の他の目的は、給水栓を長期間使用しても漏水の心配がなく、特に全自動洗濯機等への給水に使用しても、漏水の問題が生じないようにすることにある。
【0007】
【課題を解決するための手段】
この発明による給水栓は、垂直筒部およびこれの周壁に連なって後方にのびる水平筒部よりなる給水栓本体と、垂直筒部に挿入固定されるバルブカートリッジとを備えてなり、垂直筒部の周壁における水平筒部内に臨んでいる部分に連通孔が設けられているとともに、水平筒部の後端部が水流入口となされ、垂直筒部の下端部が水流出口となされており、バルブカートリッジは、前記連通孔に通じる水導入孔を周壁に有する筒状ケーシングと、ケーシングの下端部に配置固定される垂直水通路付き固定弁板と、固定弁板の上面に回動可能に重ねられる垂直水通路付き可動弁板と、ケーシングの上端部に配置固定される垂直貫通孔付き固定シール板と、前記垂直貫通孔を塞ぐように固定シール板の下面に回動可能に重ねられる可動シール板と、下端部が可動弁板に係合しかつ上端部が可動シール板に係合する連結部材と、前記垂直貫通孔に挿通され、下端部が可動シール板に係合しかつ上端部にハンドル取付部を有するスピンドルとを備えていて、水導入孔からケーシング内に導入された水圧によって可動弁板が固定弁板上面に、可動シール板が固定シール板下面にそれぞれ押し付けられるようになされているとともに、スピンドル、可動シール板および連結部材を介して可動弁板が所定角度回動させられることにより吐水または止水が行われるようになされているものである。
【0008】
この発明による給水栓において、バルブカートリッジが、さらに、可動弁板と可動シール板との間に介在されて、可動弁板を固定弁板上面に、可動シール板を固定シール板下面にそれぞれ押し付ける圧縮ばねを備えている場合がある。
【0009】
【発明の実施の形態】
図1および2は、この発明による給水栓の実施形態を示すものである。なお、以下の説明において、「前」とは図1の左を、「後」とは図1の右をそれぞれいうものとする。
【0010】
図1に示すように、この発明による給水栓(1)は、垂直筒部(2A)およびこれの周壁に連なって後方にのびる水平筒部(2B)よりなる給水栓本体(2)と、垂直筒部(2A)に挿入固定されるバルブカートリッジ(3)とを備えてなる。垂直筒部(2A)の周壁における水平筒部(2B)内に臨んでいる部分に連通孔(23)が設けられているとともに、水平筒部(2B)の後端部が水流入口(21)となされ、垂直筒部(2A)の下端部が水流出口(22)となされている。バルブカートリッジ(3)は、前記連通孔(23)に通じる水導入孔(41)を周壁(4A)に有する筒状ケーシング(4)と、ケーシング(4)の下端部に配置固定される垂直水通路(51)付き固定弁板(5)と、固定弁板(5)の上面に回動可能に重ねられる垂直水通路(61)付き可動弁板(6)と、ケーシング(4)の上端部に配置固定される垂直貫通孔(71)付き固定シール板(7)と、前記垂直貫通孔(71)を塞ぐように固定シール板(7)の下面に回動可能に重ねられる可動シール板(8)と、下端部が可動弁板(6)に係合しかつ上端部が可動シール板(8)に係合する連結部材(9)と、前記垂直貫通孔(71)に挿通され、下端部が可動シール板(8)に係合しかつ上端部にハンドル取付部(101)を有するスピンドル(10)とを備えていて、水導入孔(41)からケーシング(4)内に導入された水圧によって可動弁板(6)が固定弁板(5)上面に、可動シール板(8)が固定シール板(7)下面にそれぞれ押し付けられるようになされているとともに、スピンドル(10)、可動シール板(8)および連結部材(9)を介して可動弁板(6)が所定角度回動させられることにより吐水または止水が行われるようになされている。バルブカートリッジ(3)は、さらに、可動弁板(6)と可動シール板(8)との間に介在されて、可動弁板(6)を固定弁板(5)上面に、可動シール板(8)を固定シール板(7)下面にそれぞれ押し付ける圧縮ばね(11)を備えている。
【0011】
給水栓本体(2)は、図1に示すように、単純な内部構造を有しており、従来品と同様に鋳物によって形成することができ、この場合に使用する中子は筒状の単純な構造を有するもので足りる。また、給水栓本体(2)は、鍛造や切削加工によっても製造することもできる。いずれの製法によっても、不良品発生率は極めて低く、それだけコストダウンを図ることが可能となる。しかも、給水栓本体(2)は、図3に示す従来の給水栓の給水栓本体(2)のように前端が前方に膨らんでおらず、垂直なものとなっているから、見栄えが良い上、壁面からの突出長さがそれだけ短くなるので省スペース化を図ることができる。
【0012】
この実施形態では、水平筒部(2B)は、垂直筒部(2A)の周壁後部における上端部分から高さ中央よりもやや下方部分に連なって設けられており、それに対応した外径を有している。勿論、水平筒部(2B)の垂直筒部(2A)に対する配置および外径については、上記以外のものであってもよい。
【0013】
水平筒部(2B)における周壁外面の後端部から長さ中間部にかけて雄ねじ(24)が形成されている。この雄ねじ(24)には、給水栓(1)に給水管を接続するためのエルボ(図示略)の一端部が接続されるとともに、壁にあけられた配管取出し孔と水平筒部(2B)との間に生じる隙間を覆い隠すための雌ねじ(121)付き環状カバー(12)がねじ嵌められるようになっている。
【0014】
連通孔(23)は、図1に示すように、垂直筒部(2A)の周壁後部における水平筒部(2B)の中心軸と交差する部分に形成されている。垂直筒部(2A)の周壁内面における連通孔(23)に対応する高さ部分に、連通孔(23)に通じる連通用環状溝(25)が形成されているとともに、同環状溝(25)の下方にやや間隔をおいてガスケット収容用環状溝(26)が形成されている。垂直筒部(2A)の周壁内面における連通用環状溝(25)よりも上方部分には、雌ねじ(27)が形成されている。
【0015】
垂直筒部(2A)の周壁内面における下端寄り部分には、環状内方突出部(28)が設けられている。垂直筒部(2A)の周壁内面における下端部分には、雄ねじ(29)が設けられている。水流出口(22)を構成している垂直筒部(2A)の下端部には、吐水管(13)が接続されている。吐水管(13)は、く字形屈曲管よりなり、その上端寄り部分に環状フランジ部材(14)が回動可能に嵌め被せられている。上記吐水管(13)は、これの上端部を、垂直筒部(2A)の下端部内に、フランジ部材(14)が垂直筒部(2A)下端面に当接するところまで差し込んでおいてから、垂直筒部(2A)の雄ねじ(29)にフランジ固定用ナット(15)をねじ嵌めて同ナット(15)でフランジ部材(14)を締め付けることによって、垂直筒部(2A)の下端部に回動自在に取り付けられている。内方突出部(28)とフランジ部材(14)との間の垂直筒部(2A)周壁内面部分と、これに対向する吐水管(13)の周壁外面部分との間には、パッキン(16)が介在されている。
【0016】
バルブカートリッジ(3)のケーシング(4)は、図1および2に示すように、その周壁(4A)外面における上端寄り部分に環状外方突出部(42)を有しているとともに、外方突出部(42)の上下両側部分に雄ねじ(43)(44)を有している。上記ケーシング(4)は、これの下側雄ねじ(44)を、外方突出部(42)が垂直筒部(2A)上端面に当たるまで、垂直筒部(2A)の雌ねじ(27)にねじ嵌めることにより、垂直筒部(2A)に固定されている。ケーシング(4)の水導入孔(41)は、ケーシング(4)の周壁(4A)における連通孔(23)に対応する高さ部分の前後両側に計2つ設けられている。各水導入孔(41)は、図2に示すように、ケーシング(4)の周方向にのびる横長のものであって、垂直筒部(2A)の連通用環状溝(25)を介して連通孔(23)に通じるようになされている。ケーシング(4)と垂直筒部(2A)との間は、ガスケット収容用環状溝(26)内および垂直筒部(2A)の上端部内に配されたOリング(17)によってシールされている。ケーシング(4)は、周壁(4A)に加えて、水通過孔(45)付き底壁(4B)を有しており、底壁(4B)上面における水通過孔(45)周縁部には段差(46)が設けられている。
【0017】
固定弁板(5)は、セラミックス製であって、図2に示すように、その周縁部から下方に短くのびる垂下壁部(52)を備えており、さらに、垂下壁部(52)下端の前後部分から係合用脚部(53)が下方に突出している。垂直水通路(51)は、固定弁板(5)の中心部を挟んで対称位置に2つ設けられており、それぞれ扇形の断面をしている。上記固定弁板(5)は、これの垂下壁部(52)がケーシング(4)の底壁(4B)における段差(46)よりも内側部分に載せられるとともに、1対の係合用脚部(53)がこれらに対応して前記内側部分に形成された切欠部(47)に嵌め入れられることにより、ケーシング(4)の下端部に回動不能に配されている。固定弁板(5)とケーシング(4)の周壁(4A)下端部内面との間には、MYパッキン(18)が介在されている。
【0018】
可動弁板(6)も、セラミックス製であって、その上面中心部から上方に突出した断面6角形の係合凸部(62)を備えている。可動弁板(6)の上面には、係合凸部(62)を挟んだ対称位置が平面より見て扇形に切り欠かれている。垂直水通路(61)は、これらの切欠部から下面に達するように計2つ設けられており、それぞれ扇形の断面をしている。
【0019】
固定シール板(7)は、セラミックス製であって、その外周面上部に環状フランジ部(72)を備えている。上記固定シール板(7)は、垂直筒部(2A)の上端部内にMYパッキン(18)を介して嵌め込まれるとともに、これのフランジ部(72)が、雌ねじ(191)付き周壁部(19A)およびスピンドル挿通孔(192)付き頂壁(19B)よりなりかつケーシング(4)上端部にねじ嵌められた蓋(19)によって上から押さえられることにより、垂直筒部(2A)に固定されている。
【0020】
可動シール板(8)も、セラミックス製であって、上面中心部に断面4角形の係合凹部(81)を備えているとともに、下面中心部から下方に突出した断面6角形の係合凸部(82)を備えている。
【0021】
連結部材(9)は、下端面に可動弁板(6)の係合凸部(62)が嵌まり込む断面6角形の係合凹部(91)を備え、上端面に可動シール板(8)の係合凸部(82)が嵌まり込む断面6角形の係合凹部(92)を備えた短円柱状のものである。なお、連結部材(9)は、断面の内側輪郭が係合凸部(82)(62)に対応した6角形となされた筒状のものであってもよい。また、連結部材(9)の係合凹部(91)(92)ならびにこれらに嵌まり込む可動弁板(6)および可動シール板(8)の係合凸部(62)(82)は、図1および2に示すような断面6角形のものに限られず、その他の断面形状を有するものであっても勿論よい。さらには、連結部材(9)の上下端部に係合凸部を設け、これらが嵌まり込む係合凹部を可動弁板(6)上面および可動シール板(8)下面に設けるようにしてもかまわない。
【0022】
圧縮ばね(11)は、圧縮コイルばねよりなり、連結部材(9)の周囲に配されている。但し、連結部材(9)が筒状のものである場合には、連結部材(9)の内部に圧縮ばね(11)を配するようにしてもよい。
【0023】
スピンドル(10)の下端部には、可動シール板(8)の係合凹部(81)に嵌め入れられる断面4角形の係合部(102)が設けられている。なお、係合部(102)およびこれが嵌まり込む可動シール板(8)の係合凹部(81)は、図1および2に示すような断面4角形のものに限られず、その他の断面形状を有するものであってもよい。また、可動シール板(8)上面に係合凸部を設け、これが嵌まり込む係合凸部をスピンドル(10)の下端部に設けるようにしてもよい。スピンドル(10)における係合部(102)の上方部分には、環状溝(103)が設けられており、同溝(103)の底壁とこれに対向する固定シール板(7)の垂直貫通孔(71)内面部分との間に、スピンドル(10)を垂直に保持するためのOリング(20)が介在されている。スピンドル(10)の長さ中間部には環状フランジ部(104)が設けられており、このフランジ部(104)が、固定シール板(7)上面と蓋(19)の頂壁部(19B)との間に介在されることにより、スピンドル(10)が上方に抜けないようになされている。スピンドル(10)上端部のハンドル取付部(101)は、上下方向にのびる多数の歯(101a)が円周方向に並んで設けられてなる。
【0024】
ハンドルとしては、ハンドル取付部(101)が嵌まり込む係合孔を有する汎用品を使用することができ、特に限定されない。なお、図示は省略したが、ハンドルの回動範囲を開栓位置と閉栓位置との間に規制するためのストッパを、例えばスピンドル(10)および蓋(19)の所要箇所に設けるようにしてもよい。
【0025】
上記の給水栓(1)にあっては、閉栓状態では、固定弁板(5)および可動弁板(6)が、これらの垂直水通路(51)(61)どうしが重なり合わず不通となるような位置関係にある。なお、ケーシング(4)内には、給水管からの水が、エルボ、給水栓本体(2)の水平筒部(2B)、垂直筒部(2A)の連通孔(23)および環状溝(23)を経て、水導入孔(41)より導入されており、この水の圧力および圧縮ばね(11)の弾性力によって、可動弁板(6)が固定弁板(5)上面に、可動シール板(8)が固定シール板(7)下面にそれぞれ押し付けられ、それによって確実に漏水が防止されるようになっている。また、固定弁板(5)、可動弁板(6)、固定シール板(7)および可動シール板(8)は、いずれもセラミックス製であって、耐磨耗性に富み、熱による歪みも生じないから、長期間使用しても漏水の問題は起こらない。そして、上記閉栓状態から、ハンドルを所定方向に所定角度(約90°)回動させると、スピンドル(10)、可動シール板(8)および連結部材(9)を介して、可動弁板(6)が回動させられ、それによって固定弁板(5)および可動弁板(6)の垂直水通路(51)(61)どうしが重なり合って連通し、水流出口(22)を経て吐水管(13)から水が吐出される開栓状態となる。開栓状態から閉栓状態に移行させるには、上記と逆のハンドル操作を行えばよい。
【0026】
また、上記給水栓(1)が全自動洗濯機への給水に使用される場合、通常、吐水管(13)の先端と全自動洗濯機の水導入部とがホースによってに接続される。この場合、給水中に全自動洗濯機の水導入部において自動的に止水が行われると、水が給水栓(1)側に逆流するが、逆流して固定弁板(5)および可動弁板(6)の垂直水通路(51)(61)からケーシング(4)内に導入された水の圧力は、可動シール板(8)に対してこれを固定シール板(7)下面に押し付ける方向にのみ作用する上、これらのシール板(7)(8)はセラミックス製であるので、両シール板(7)(8)が損傷するおそれはなく、従来技術のように同部分から漏水する問題は起こらない。
【0027】
なお、上記の実施形態はあくまでも一例にすぎず、特許請求の範囲に記載されたこの発明の要旨を逸脱しない範囲で適宜に変更の上、この発明を実施することは勿論可能である。
【0028】
【発明の効果】
この発明による給水栓は、上記の通りのものであって、給水栓本体の内部構造が単純化されているから、給水栓本体については、これに対応した単純な構造の中子を使用して鋳物で製造することができる他、鍛造や切削加工によって製造することができ、それによって不良品の発生率が低減し、コストダウンを図ることが可能となる。また、給水栓本体が上記垂直筒部および水平筒部で構成されていて、従来の給水栓の給水栓本体のように前端が前方に膨らんでいないので、見栄えが良い上、壁面等からの突出長さが短くなるのでそれだけ省スペース化を図ることができる。しかも、この発明の給水栓にあっては、バルブカートリッジのケーシング内に備えられた可動弁板が固定弁板上面に、可動シール板が固定シール板下面に、それぞれ水圧またはこれと圧縮ばねの弾性力とによって押し付けられるようになされているので、漏水の問題がなく、安心して長期間使用できる。特に、全自動洗濯機等への給水に使用した場合でも、給水栓よりも上流側での止水に伴って生じた水の逆流によってスピンドル部分のシール部品、即ち、可動シール板および固定シール板が損傷するおそれがなく、漏水の心配が全くない。
【図面の簡単な説明】
【図1】この発明の実施形態を示すものであって、給水栓の垂直断面図である。
【図2】上記給水栓のバルブカートリッジを分解して示す斜視図である。
【図3】従来の給水栓を示す垂直斜視図である。
【符号の説明】
(1):給水栓
(2):給水栓本体
(2A):垂直筒部
(2B):水平筒部
(21):水流入口
(22):水流出口
(23):連通孔
(3):バルブカートリッジ
(4):ケーシング
(4A):周壁
(41):水導入孔
(5):固定弁板
(51):垂直水通路
(6):可動弁板
(61):垂直水通路
(7):固定シール板
(71):垂直貫通孔
(8):可動シール板
(9):連結部材
(10):スピンドル
(101):ハンドル取付部
(11):圧縮ばね[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water faucet, and more particularly to a water faucet that is attached to a wall surface or the like and is suitably used for water supply to, for example, a washing machine.
[0002]
[Prior art]
What is shown in FIG. 3 is known as a water tap attached to a wall surface and used for water supply to a washing machine. The water faucet (200) of FIG. 3 has a water faucet body (201) made of a casting, and has a water inlet (202) opened rearward at the rear end, and at the front end. It has a valve unit housing opening (203) that is open and a water outlet (204) that is open downward, and a substantially U-shaped partition wall (205) as viewed from the side is provided in the front end portion of the faucet body (201). A water passage hole (206) is formed in the upper horizontal portion (205A) of the partition wall (205), and a valve seat (207) is provided on the upper peripheral edge of the water passage hole (206). The faucet body (201) has a shape in which a front end portion thereof is greatly bulged forward because it is necessary to provide a secondary flow path in front of the partition wall (205). On the other hand, the valve body unit (208) accommodated in the water faucet body (201) through the valve body unit accommodation port (203) is a rubber valve body which is brought into contact with or separated from the valve seat (207). (209), a male screw (209) attached to the lower end, a handle (210) attached to the upper end, and a female screw (203A) provided in the valve body accommodating port (203) 211A) and a spindle (211). A rubber packing (212) is interposed between the spindle (211) and the valve body unit accommodation port (203) to seal the gap, and the packing (212) is connected to the valve body unit accommodation port ( 203) is pressed from above by a holding nut (213) screwed into a male screw (203B) provided on the outer peripheral surface of the upper end portion of 203).
[0003]
[Problems to be solved by the invention]
When the water faucet body (201) having a complicated internal structure as shown in FIG. 3 is made by casting, a core having a complicated structure corresponding to that must be used, and when molten metal is poured into the mold. In many cases, a thin part of the core breaks or the gas generated from the core due to the heat of the molten metal does not escape sufficiently, resulting in defective products. It was.
[0004]
In addition, due to the structural constraints as described above, the faucet body (201) has to have a shape with its front end greatly bulging forward, so that it does not look good and the protruding length from the wall surface is short. Therefore, there was a limit to space saving.
[0005]
Further, in the water tap (200), the packing (212) that seals the gap between the valve body (209) and the spindle (211) and the valve body unit accommodation port (203) is made of rubber. Therefore, when used for a long period of time, deformation, deterioration, etc. may occur and there may be a problem of water leakage. In addition, when the hydrant (200) is used for supplying water to the fully automatic washing machine, when the water is automatically stopped at the water introduction part of the washing machine, the water inside the hydrant body (201) A high water pressure is applied to the rubber packing (212) sealing the gap between the spindle (211) and the valve body unit accommodation opening (203) due to the reverse flow. Therefore, in this case, in particular, the sealing function of the packing (212) is likely to be deteriorated, and there is a problem that water leaks from the gap between the spindle (211) and the valve body unit accommodation port (203).
[0006]
The object of the present invention is to achieve a reduction in the occurrence rate of defective products and cost reduction of the faucet body and improve the appearance of the faucet body for a faucet that is attached to a wall surface and used for water supply to a washing machine, for example. In addition, it is to enable space saving. Another object of the present invention is to prevent water leakage even when the water tap is used for a long period of time, and to prevent the problem of water leakage even when used for supplying water to a fully automatic washing machine or the like. .
[0007]
[Means for Solving the Problems]
A water faucet according to the present invention includes a water faucet body composed of a vertical cylindrical portion and a horizontal cylindrical portion extending rearwardly connected to a peripheral wall of the vertical cylindrical portion, and a valve cartridge inserted and fixed in the vertical cylindrical portion. A communication hole is provided in a portion of the peripheral wall facing the horizontal cylindrical portion, a rear end portion of the horizontal cylindrical portion is a water inlet, a lower end portion of the vertical cylindrical portion is a water outlet, and the valve cartridge is A cylindrical casing having a water introduction hole communicating with the communication hole in the peripheral wall, a fixed valve plate with a vertical water passage disposed and fixed at a lower end portion of the casing, and vertical water that is pivotally stacked on an upper surface of the fixed valve plate A movable valve plate with a passage, a fixed seal plate with a vertical through-hole disposed and fixed at the upper end of the casing, and a movable seal plate that is pivotally stacked on the lower surface of the fixed seal plate so as to close the vertical through-hole. A connecting member whose end is engaged with the movable valve plate and whose upper end is engaged with the movable seal plate, and is inserted through the vertical through-hole, the lower end is engaged with the movable seal plate, and the handle attachment portion is located at the upper end. And the movable valve plate is pressed against the upper surface of the fixed valve plate and the movable seal plate is pressed against the lower surface of the fixed seal plate by the water pressure introduced into the casing from the water introduction hole. The movable valve plate is rotated by a predetermined angle via the spindle, the movable seal plate, and the connecting member so that water discharge or water stop is performed.
[0008]
In the water tap according to the present invention, the valve cartridge is further interposed between the movable valve plate and the movable seal plate, and compresses the movable valve plate against the upper surface of the fixed valve plate and the movable seal plate against the lower surface of the fixed seal plate. May have a spring.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show an embodiment of a water tap according to the present invention. In the following description, “front” refers to the left in FIG. 1, and “rear” refers to the right in FIG.
[0010]
As shown in FIG. 1, a faucet (1) according to the present invention comprises a vertical faucet body (2) composed of a vertical tubular portion (2A) and a horizontal tubular portion (2B) extending rearward from the vertical tubular portion (2A). And a valve cartridge (3) inserted and fixed to the tube portion (2A). A communication hole (23) is provided in a portion of the peripheral wall of the vertical cylindrical portion (2A) facing the horizontal cylindrical portion (2B), and a rear end portion of the horizontal cylindrical portion (2B) is a water inlet (21). The lower end of the vertical cylinder (2A) is a water outlet (22). The valve cartridge (3) includes a cylindrical casing (4) having a water introduction hole (41) communicating with the communication hole (23) in the peripheral wall (4A), and vertical water disposed and fixed at the lower end of the casing (4). A fixed valve plate (5) with a passage (51), a movable valve plate (6) with a vertical water passage (61) that is pivotably stacked on the upper surface of the fixed valve plate (5), and an upper end of the casing (4) A fixed seal plate (7) with a vertical through hole (71) that is disposed and fixed to a movable seal plate (7) that is pivotally stacked on the lower surface of the fixed seal plate (7) so as to close the vertical through hole (71). 8), a connecting member (9) whose lower end engages with the movable valve plate (6) and whose upper end engages with the movable seal plate (8), and is inserted into the vertical through hole (71). And a spindle (10) having a handle engaging portion (101) at its upper end and engaging the movable seal plate (8), and introduced into the casing (4) from the water introduction hole (41). Due to water pressure, the movable valve plate (6) is fixed on the fixed valve plate (5) The movable seal plate (8) is pressed against the lower surface of the fixed seal plate (7), and the movable valve plate (8) via the spindle (10), the movable seal plate (8) and the connecting member (9). Water discharge or water stop is performed by rotating 6) by a predetermined angle. The valve cartridge (3) is further interposed between the movable valve plate (6) and the movable seal plate (8), and the movable valve plate (6) is disposed on the upper surface of the fixed valve plate (5). A compression spring (11) is provided for pressing 8) against the lower surface of the fixed seal plate (7).
[0011]
The faucet body (2) has a simple internal structure as shown in FIG. 1, and can be formed by casting as in the conventional product, and the core used in this case is a simple tube. A simple structure is sufficient. Moreover, the faucet body (2) can also be manufactured by forging or cutting. In any of the manufacturing methods, the defective product generation rate is extremely low, and the cost can be reduced accordingly. Moreover, the faucet body (2) has a good appearance because the front end does not swell forward unlike the faucet body (2) of the conventional faucet shown in FIG. Since the protrusion length from the wall surface is shortened, the space can be saved.
[0012]
In this embodiment, the horizontal cylindrical portion (2B) is provided continuously from the upper end portion at the rear portion of the peripheral wall of the vertical cylindrical portion (2A) to a portion slightly below the center of the height, and has an outer diameter corresponding thereto. ing. Of course, the arrangement and outer diameter of the horizontal cylinder part (2B) with respect to the vertical cylinder part (2A) may be other than the above.
[0013]
A male screw (24) is formed from the rear end portion of the outer peripheral surface of the peripheral wall of the horizontal cylindrical portion (2B) to the middle portion of the length. One end of an elbow (not shown) for connecting a water supply pipe to the water tap (1) is connected to the male screw (24), and a pipe outlet hole and a horizontal cylinder part (2B) opened in the wall An annular cover (12) with a female screw (121) for covering the gap formed between the two is screwed.
[0014]
As shown in FIG. 1, the communication hole (23) is formed in a portion intersecting with the central axis of the horizontal cylinder part (2 B) at the rear part of the peripheral wall of the vertical cylinder part (2 A). An annular groove (25) for communication leading to the communication hole (23) is formed in a height portion corresponding to the communication hole (23) on the inner surface of the peripheral wall of the vertical cylindrical portion (2A), and the annular groove (25) An annular groove (26) for accommodating a gasket is formed at a slight interval below the groove. A female screw (27) is formed on the inner surface of the peripheral wall of the vertical cylindrical portion (2A) above the communication annular groove (25).
[0015]
An annular inward projecting portion (28) is provided at the lower end portion of the inner surface of the peripheral wall of the vertical cylindrical portion (2A). A male screw (29) is provided at the lower end portion of the inner surface of the peripheral wall of the vertical cylindrical portion (2A). A water discharge pipe (13) is connected to the lower end of the vertical cylindrical part (2A) constituting the water outlet (22). The water discharge pipe (13) is formed of a square-shaped bent pipe, and an annular flange member (14) is rotatably fitted on a portion near the upper end thereof. Insert the upper end of the water discharge pipe (13) into the lower end of the vertical cylinder (2A) until the flange member (14) contacts the lower end of the vertical cylinder (2A). The flange fixing nut (15) is screwed onto the male screw (29) of the vertical cylinder (2A), and the flange member (14) is tightened with the nut (15), so that it rotates to the lower end of the vertical cylinder (2A). It is attached movably. Between the inner surface portion of the vertical cylindrical portion (2A) between the inward projecting portion (28) and the flange member (14) and the outer surface portion of the peripheral wall of the water discharge pipe (13) facing the packing (16 ) Is interposed.
[0016]
As shown in FIGS. 1 and 2, the casing (4) of the valve cartridge (3) has an annular outward protrusion (42) at the upper end portion of the outer surface of the peripheral wall (4 A), and also protrudes outward. Male screws (43) and (44) are provided on both upper and lower sides of the portion (42). In the casing (4), the lower male screw (44) is screwed into the female screw (27) of the vertical cylindrical portion (2A) until the outward projecting portion (42) hits the upper end surface of the vertical cylindrical portion (2A). Thus, it is fixed to the vertical cylinder portion (2A). Two water introduction holes (41) of the casing (4) are provided on both the front and rear sides of the height portion corresponding to the communication hole (23) in the peripheral wall (4A) of the casing (4). As shown in FIG. 2, each water introduction hole (41) is a horizontally long one extending in the circumferential direction of the casing (4), and is communicated via the communication annular groove (25) of the vertical cylindrical portion (2A). It is made to lead to the hole (23). The casing (4) and the vertical cylinder part (2A) are sealed by an O-ring (17) disposed in the gasket accommodating annular groove (26) and in the upper end part of the vertical cylinder part (2A). The casing (4) has a bottom wall (4B) with a water passage hole (45) in addition to the peripheral wall (4A), and a step is formed at the periphery of the water passage hole (45) on the upper surface of the bottom wall (4B). (46) is provided.
[0017]
As shown in FIG. 2, the fixed valve plate (5) is provided with a hanging wall portion (52) that extends downward from its peripheral edge, and is further provided at the lower end of the hanging wall portion (52). An engaging leg (53) projects downward from the front and rear portions. Two vertical water passages (51) are provided at symmetrical positions across the center of the fixed valve plate (5), and each has a fan-shaped cross section. The fixed valve plate (5) has its hanging wall portion (52) placed on the inner side of the step (46) in the bottom wall (4B) of the casing (4) and a pair of engaging legs ( 53) is inserted into a notch (47) formed in the inner portion corresponding to these, so that the lower end of the casing (4) is non-rotatably disposed. An MY packing (18) is interposed between the fixed valve plate (5) and the inner surface of the lower end of the peripheral wall (4A) of the casing (4).
[0018]
The movable valve plate (6) is also made of ceramics and includes an engaging convex portion (62) having a hexagonal cross section protruding upward from the center portion of the upper surface. On the upper surface of the movable valve plate (6), a symmetrical position with the engagement convex portion (62) sandwiched is cut out in a fan shape when seen from the plane. A total of two vertical water passages (61) are provided so as to reach the lower surface from these notches, and each has a fan-shaped cross section.
[0019]
The fixed seal plate (7) is made of ceramics and includes an annular flange portion (72) at the upper portion of the outer peripheral surface thereof. The fixed seal plate (7) is fitted into the upper end portion of the vertical cylindrical portion (2A) via the MY packing (18), and the flange portion (72) thereof has a peripheral wall portion (19A) with a female screw (191). And a top wall (19B) with a spindle insertion hole (192), and is fixed to the vertical cylinder (2A) by being pressed from above by a lid (19) screwed onto the upper end of the casing (4). .
[0020]
The movable seal plate (8) is also made of ceramics, and has an engagement recess (81) with a square cross section at the center of the upper surface and an engagement protrusion with a hexagonal cross section protruding downward from the center of the lower surface. (82).
[0021]
The connecting member (9) includes a hexagonal cross-section engaging recess (91) into which the engaging convex portion (62) of the movable valve plate (6) is fitted at the lower end surface, and the movable seal plate (8) at the upper end surface. This is a short columnar shape having an engaging recess (92) having a hexagonal cross section into which the engaging protrusion (82) is fitted. The connecting member (9) may have a cylindrical shape in which the inner contour of the cross section is a hexagon corresponding to the engaging convex portions (82) and (62). In addition, the engagement recesses (91) and (92) of the connecting member (9) and the engagement protrusions (62) and (82) of the movable valve plate (6) and the movable seal plate (8) fitted in these are shown in FIG. It is not limited to the hexagonal cross section as shown in 1 and 2, but may of course have other cross sectional shapes. Furthermore, engagement convex portions are provided on the upper and lower ends of the connecting member (9), and engagement concave portions into which these are fitted may be provided on the upper surface of the movable valve plate (6) and the lower surface of the movable seal plate (8). It doesn't matter.
[0022]
The compression spring (11) is formed of a compression coil spring and is arranged around the connecting member (9). However, when the connecting member (9) is cylindrical, the compression spring (11) may be arranged inside the connecting member (9).
[0023]
At the lower end portion of the spindle (10), an engagement portion (102) having a quadrangular cross section that is fitted into the engagement recess (81) of the movable seal plate (8) is provided. Note that the engaging portion (102) and the engaging recess (81) of the movable seal plate (8) into which the engaging portion (102) is fitted are not limited to those having a quadrangular section as shown in FIGS. You may have. Further, an engaging convex portion may be provided on the upper surface of the movable seal plate (8), and an engaging convex portion into which the engaging convex portion is fitted may be provided at the lower end portion of the spindle (10). An annular groove (103) is provided in the upper part of the engaging part (102) of the spindle (10), and the bottom wall of the groove (103) and the vertical penetration of the fixed seal plate (7) facing the bottom wall An O-ring (20) for holding the spindle (10) vertically is interposed between the inner surface portion of the hole (71). An annular flange portion (104) is provided in the middle portion of the length of the spindle (10), and this flange portion (104) is provided on the upper surface of the fixed seal plate (7) and the top wall portion (19B) of the lid (19). So that the spindle (10) does not come out upward. The handle attachment portion (101) at the upper end of the spindle (10) is provided with a large number of teeth (101a) extending in the vertical direction and arranged in the circumferential direction.
[0024]
As the handle, a general-purpose product having an engagement hole into which the handle mounting portion (101) is fitted can be used, and is not particularly limited. Although not shown in the drawing, a stopper for restricting the rotation range of the handle between the opening position and the closing position may be provided, for example, at a required portion of the spindle (10) and the lid (19). Good.
[0025]
In the above-mentioned water faucet (1), in the closed state, the fixed valve plate (5) and the movable valve plate (6) do not overlap with each other because the vertical water passages (51) (61) do not overlap each other. It is in such a positional relationship. In addition, in the casing (4), water from the water supply pipe allows the elbow, the horizontal cylinder part (2B) of the faucet body (2), the communication hole (23) of the vertical cylinder part (2A) and the annular groove (23 ) Through the water introduction hole (41), and due to the pressure of the water and the elastic force of the compression spring (11), the movable valve plate (6) is placed on the upper surface of the fixed valve plate (5) and the movable seal plate. (8) is pressed against the lower surface of the fixed seal plate (7), so that water leakage is surely prevented. The fixed valve plate (5), the movable valve plate (6), the fixed seal plate (7), and the movable seal plate (8) are all made of ceramics, have high wear resistance, and are not easily deformed by heat. Since it does not occur, the problem of water leakage does not occur even if it is used for a long time. When the handle is rotated by a predetermined angle (about 90 °) in a predetermined direction from the closed state, the movable valve plate (6) is passed through the spindle (10), the movable seal plate (8), and the connecting member (9). ) Is rotated, whereby the vertical water passages (51) and (61) of the fixed valve plate (5) and the movable valve plate (6) overlap and communicate with each other, and the water discharge pipe (13) passes through the water outlet (22). ), The water is discharged from the plug. In order to shift from the opened state to the closed state, a handle operation opposite to the above may be performed.
[0026]
When the water tap (1) is used for supplying water to the fully automatic washing machine, the tip of the water discharge pipe (13) and the water introduction part of the fully automatic washing machine are usually connected by a hose. In this case, when water is automatically stopped at the water introduction part of the fully automatic washing machine during the water supply, the water flows backward to the water tap (1) side, but flows back to the fixed valve plate (5) and the movable valve. The pressure of water introduced into the casing (4) from the vertical water passages (51) (61) of the plate (6) is the direction in which it is pressed against the lower surface of the fixed seal plate (7) against the movable seal plate (8). Since these seal plates (7) and (8) are made of ceramics, there is no risk of both seal plates (7) and (8) being damaged, and there is a problem of water leakage from the same portion as in the prior art. Does not happen.
[0027]
It should be noted that the above-described embodiment is merely an example, and it is of course possible to implement the present invention as appropriate without departing from the gist of the present invention described in the claims.
[0028]
【The invention's effect】
The faucet according to the present invention is as described above, and since the internal structure of the faucet body is simplified, for the faucet body, a core having a simple structure corresponding thereto is used. In addition to being able to be manufactured by casting, it can be manufactured by forging or cutting, thereby reducing the incidence of defective products and reducing costs. In addition, the faucet body is composed of the vertical cylinder part and the horizontal cylinder part, and the front end does not bulge forward like the faucet body of the conventional faucet. Since the length is shortened, it is possible to save space. Moreover, in the water tap according to the present invention, the movable valve plate provided in the casing of the valve cartridge is on the upper surface of the fixed valve plate, the movable seal plate is on the lower surface of the fixed seal plate, respectively, and the water pressure or the elasticity of the compression spring is compressed. Because it is pushed by force, there is no problem of water leakage and it can be used safely for a long time. In particular, even when used for water supply to a fully automatic washing machine or the like, the seal parts of the spindle portion, that is, the movable seal plate and the fixed seal plate are caused by the backflow of water generated by water stoppage upstream of the water tap. There is no risk of damage and there is no concern about water leakage.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view of a water tap according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a valve cartridge of the water tap.
FIG. 3 is a vertical perspective view showing a conventional water faucet.
[Explanation of symbols]
(1): Faucet
(2): Water faucet body
(2A): Vertical cylinder
(2B): Horizontal cylinder
(21): Water inlet
(22): Water outlet
(23): Communication hole
(3): Valve cartridge
(4): Casing
(4A): Perimeter wall
(41): Water introduction hole
(5): Fixed valve plate
(51): Vertical water passage
(6): Movable valve plate
(61): Vertical water passage
(7): Fixed seal plate
(71): Vertical through hole
(8): Movable seal plate
(9): Connecting member
(10): Spindle
(101): Handle mounting part
(11): Compression spring
Claims (2)
垂直筒部の周壁における水平筒部内に臨んでいる部分に連通孔が設けられているとともに、水平筒部の後端部が水流入口となされ、垂直筒部の下端部が水流出口となされており、
バルブカートリッジは、前記連通孔に通じる水導入孔を周壁に有する筒状ケーシングと、ケーシングの下端部に配置固定される垂直水通路付き固定弁板と、固定弁板の上面に回動可能に重ねられる垂直水通路付き可動弁板と、ケーシングの上端部に配置固定される垂直貫通孔付き固定シール板と、前記垂直貫通孔を塞ぐように固定シール板の下面に回動可能に重ねられる可動シール板と、下端部が可動弁板に係合しかつ上端部が可動シール板に係合する連結部材と、前記垂直貫通孔に挿通され、下端部が可動シール板に係合しかつ上端部にハンドル取付部を有するスピンドルとを備えていて、水導入孔からケーシング内に導入された水圧によって可動弁板が固定弁板上面に、可動シール板が固定シール板下面にそれぞれ押し付けられるようになされているとともに、スピンドル、可動シール板および連結部材を介して可動弁板が所定角度回動させられることにより吐水または止水が行われるようになされている、給水栓。It comprises a water faucet body consisting of a vertical cylinder part and a horizontal cylinder part extending back to the peripheral wall, and a valve cartridge inserted and fixed in the vertical cylinder part,
A communication hole is provided in a portion of the peripheral wall of the vertical cylindrical portion facing the horizontal cylindrical portion, a rear end portion of the horizontal cylindrical portion is a water inlet, and a lower end portion of the vertical cylindrical portion is a water outlet. ,
The valve cartridge includes a cylindrical casing having a water introduction hole communicating with the communication hole in the peripheral wall, a fixed valve plate with a vertical water passage disposed and fixed at a lower end portion of the casing, and a rotatable valve plate on the upper surface of the fixed valve plate. A movable valve plate with a vertical water passage, a fixed seal plate with a vertical through-hole disposed and fixed at the upper end of the casing, and a movable seal that is pivotally stacked on the lower surface of the fixed seal plate so as to close the vertical through-hole. A plate, a connecting member having a lower end engaged with the movable valve plate and an upper end engaged with the movable seal plate, and inserted through the vertical through-hole, and the lower end engaged with the movable seal plate and formed at the upper end. And a spindle having a handle mounting portion so that the movable valve plate is pressed against the upper surface of the fixed valve plate and the movable seal plate is pressed against the lower surface of the fixed seal plate by water pressure introduced into the casing from the water introduction hole. Together we are, spindle, movable valve plate via a movable seal plate and the connecting member is adapted to spout water or water stopping is performed by being allowed to rotated by a predetermined angle, the faucet.
Priority Applications (1)
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JP2000335315A JP4582513B2 (en) | 2000-11-02 | 2000-11-02 | Faucet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2000335315A JP4582513B2 (en) | 2000-11-02 | 2000-11-02 | Faucet |
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JP2002138534A JP2002138534A (en) | 2002-05-14 |
JP4582513B2 true JP4582513B2 (en) | 2010-11-17 |
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JP2000335315A Expired - Fee Related JP4582513B2 (en) | 2000-11-02 | 2000-11-02 | Faucet |
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JP6679353B2 (en) * | 2016-03-11 | 2020-04-15 | 株式会社Lixil | Faucet and method of manufacturing faucet |
JP7148836B2 (en) * | 2018-06-22 | 2022-10-06 | Toto株式会社 | Faucet device and manufacturing method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60222671A (en) * | 1984-12-03 | 1985-11-07 | Toto Ltd | Cock |
JPH11351423A (en) * | 1998-06-04 | 1999-12-24 | Kitamura Gokin Ind Co Ltd | Combination taps |
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2000
- 2000-11-02 JP JP2000335315A patent/JP4582513B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60222671A (en) * | 1984-12-03 | 1985-11-07 | Toto Ltd | Cock |
JPH11351423A (en) * | 1998-06-04 | 1999-12-24 | Kitamura Gokin Ind Co Ltd | Combination taps |
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JP2002138534A (en) | 2002-05-14 |
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