JP4235764B2

JP4235764B2 - Branch joint for mixed faucets

Info

Publication number: JP4235764B2
Application number: JP2002256419A
Authority: JP
Inventors: 直人山田
Original assignee: 株式会社カクダイ
Priority date: 2002-09-02
Filing date: 2002-09-02
Publication date: 2009-03-11
Anticipated expiration: 2022-09-02
Also published as: JP2004092246A

Description

【０００１】
【発明の属する技術分野】
本発明は、湯分岐孔および／または水分岐孔を有する混合水栓から食器洗い機や浄水器等の水使用機器への配管に用いられる分岐継手に関する。
【０００２】
【従来の技術】
例えば台所の流し台の上に食器洗い機や浄水器を設置する場合、流し台用の混合水栓から取り出した湯または水を使用するのが一般的である。
【０００３】
図５〜７は、台所の流し台(S)における混合水栓(M)から食器洗い機(D)への分岐配管構造の従来例を示すものである（例えば、特許文献１参照）。混合水栓(M)は、シングルレバー式のものであって、流し台(S)の天板(S1)における水槽(S2)の後方部分に取り付けられている。この混合水栓(M)は、左側部に開口した湯分岐孔(M1)と、右側部に開口した水分岐孔(M2)とを有している。湯分岐孔(M1)は、混合水栓本体(M10)内の湯導入路(M3)に通じており、水分岐孔(M2)は、混合水栓本体(M10)内の水導入路(M4)に通じている。両分岐孔(M1)(M2)は、雌ネジ(M11)(M21)を有している。一方、食器洗い機(D)は、流し台(S)の天板(S1)における水槽(S2)の左側部分に設置されている。そして、混合水栓(M)の水分岐孔(M2)に分岐継手(500)を介して分岐管(P)の基端部が接続され、分岐管(P)の先端部が食器洗い機(D)の水導入口（図示略）に接続されている。分岐継手(500)の左端部には、水分岐孔(M2)の雌ネジ(M21)にねじ込まれる雄ネジ(501a)を有する分岐孔接続口部(501)が形成されている。分岐継手(500)の右端部には、雄ネジ(502a)を有する分岐管接続口部(502)が形成されている。分岐管接続口部(502)には、一端部に分岐管接続口部(502)の雄ネジ(502a)にねじ嵌められる袋ナット(601)を有しかつ他端部に雄型継手（図示略）を有する開閉バルブ(600)を介して、雌型継手(P1)を有する分岐管(P)の基端部が着脱自在に接続されている。混合水栓(M)の湯分岐孔(M1)は、該分岐孔(M1)の雌ネジ(M11)にねじ込まれる雄ネジ(P1)を有する栓(P)により、閉鎖されている。
【０００４】
【特許文献１】
特開２００１−３２３５２６号公報
【０００５】
【発明が解決しようとする課題】
しかしながら、上述した分岐配管構造にあっては、図７に示すように食器洗い機(D)が混合水栓(M)の水分岐孔(M2)とは反対の側に設置されている場合、ホース等よりなる分岐管(P)が折れ曲がって、通水不良を起こしたり、開閉バルブ(600)のハンドル(602)と干渉するおそれがあった。
【０００６】
本発明の目的は、分岐管を接続すべき混合水栓の湯または水分岐孔とは反対の側に水使用機器が設置される場合であっても、分岐管が折れ曲がることなく配管することが可能な分岐継手を提供することにある。
【０００７】
【課題を解決するための手段および発明の効果】
本発明による第１の混合水栓用分岐継手は、一側部に開口した湯分岐孔および他側部に開口した水分岐孔を有する混合水栓のいずれか一方の分岐孔から、該分岐孔とは反対の側に設置される水使用機器へ配管する際に用いられるものであって、
一端部に前記一方の分岐孔に接続される分岐孔接続口部を有し、他端部が閉鎖され、かつ長さ中間部に外周面に開口した連通孔を有する第１継手部材と、
一端部に他方の分岐孔に嵌め込まれる分岐孔閉栓部を有し、他端部に分岐管の基端部が接続される分岐管接続口部を有し、かつ長さ中間部に外周面に開口した連通孔を有する第２継手部材と、
両端部が前記連通孔に通じるように第１継手部材および第２継手部材に接続される第３継手部材とを備えている。
【０００８】
上記の混合水栓用分岐継手にあっては、分岐管の基端部が接続される第２継手部材の分岐管接続口部が、水使用機器と同じ側を向く。したがって、本発明による第１の混合水栓用分岐継手によれば、分岐管を接続すべき混合水栓の湯または水分岐孔とは反対の側に水使用機器が設置される場合でも、分岐管が折れ曲がらないので、分岐管が通水不良を起こしたり、分岐管が開閉バルブの操作ハンドルと干渉するといった問題が生じる恐れがない。また、本発明による第１の混合水栓用分岐継手によれば、第２継手部材の分岐孔閉栓部によって、使用しない方の分岐孔を塞ぐことができるので、該分岐孔を塞ぐ栓を別途用意する必要がなく、部品管理等も容易になる。
【０００９】
本発明による第１の混合水栓用分岐継手において、第１継手部材は、その他端部に、第２継手部材の分岐管接続口部に接続される分岐管とは別の分岐管の基端部を接続し得る分岐管接続口部を有しており、該接続口部が、これに着脱自在に取り付けられた閉鎖部材によって閉鎖されているのが好ましい。
【００１０】
第１継手部材が上記のような構成を有していれば、必要に応じて、更に別の水使用機器への分岐配管に容易に対応することができるので、便利である。また、上記の場合において、第１継手部材内に、連通孔に通じる流路と分岐管接続口部に通じる流路とに切り替える切替弁が設けられていてもよい。このような切替弁が第１継手部材に組み込まれていれば、配管中に切替弁を別途設ける必要がなく、便利である。
【００１１】
また、本発明による第１の混合水栓用分岐継手において、混合水栓の各分岐孔が雌ネジを有しており、該雌ネジにねじ込まれる雄ネジが第１継手部材の分岐孔接続口部および第２継手部材の分岐孔閉栓部に設けられ、第３継手部材は、その両端部に、第１継手部材および第２継手部材の長さ中間部が回動自在に嵌め入れられる接続筒部を有しているのが好ましい。
【００１２】
上記構成によれば、分岐継手の混合水栓への取付を専らネジ接合のみによって行うことができるので、取付作業が容易となり、施工性が向上する。また、上記構成によれば、第３継手部材の両接続筒部に第１継手部材および第２継手部材を嵌め込むことによって、分岐継手を簡単に組み立てることができる。上記の場合において、２つの接続筒部どうしは、連通管部によって互いに連通させられる。連通管部は、混合水栓に干渉しないように、Ｕ形や円弧形の金属管によって構成される他、フレキシブル管によって構成されてもよい。
【００１３】
本発明による第２の混合水栓用分岐継手は、一側部に開口した湯分岐孔および他側部に開口した水分岐孔のうち少なくとも一方を有する混合水栓のいずれか１つの分岐孔から、該分岐孔とは反対の側に設置される水使用機器へ配管する際に用いられるものであって、
一端部に前記分岐孔に接続される分岐孔接続口部を有し、他端部が閉鎖され、かつ長さ中間部に外周面に開口した連通孔を有する第１継手部材と、
一端部が前記連通孔に通じるように第１継手部材に接続され、この一端部から前記分岐孔とは反対の側に向かって折れ曲がり、かつ他端部に分岐管の基端部が接続される分岐管接続口部を有する第２継手部材とを備えている。
【００１４】
上記の混合水栓用分岐継手にあっては、分岐管の基端部が接続される第２継手部材の分岐管接続口部が、水使用機器と同じ側を向く。したがって、本発明による第２の混合水栓用分岐継手によれば、接続すべき混合水栓の湯または水分岐孔とは反対の側に水使用機器が設置される場合でも、分岐管が折れ曲がらないので、分岐管が通水不良を起こしたり、分岐管が開閉バルブの操作ハンドルと干渉するといった問題が生じる恐れがない。
【００１５】
本発明による第２の混合水栓用分岐継手において、第１継手部材は、その他端部に、第２継手部材の分岐管接続口部に接続される分岐管とは別の分岐管の基端部を接続し得る分岐管接続口部を有しており、該接続口部が、これに着脱自在に取り付けられた閉鎖部材によって閉鎖されているのが好ましい。
【００１６】
第１継手部材が上記のような構成を有していれば、必要に応じて、更に別の水使用機器への分岐配管に容易に対応することができるので、便利である。また、上記の場合において、第１継手部材内に、連通孔に通じる流路と分岐管接続口部に通じる流路とに切り替える切替弁が設けられていてもよい。このような切替弁が第１継手部材に組み込まれていれば、配管中に切替弁を別途設ける必要がなく、便利である。
【００１７】
また、本発明による第２の混合水栓用分岐継手において、混合水栓の前記分岐孔が雌ネジを有しており、該雌ネジにねじ込まれる雄ネジが第１継手部材の分岐孔接続口部に設けられ、第２継手部材は、その一端部に、第１継手部材の長さ中間部が回動自在に嵌め入れられる接続筒部を有しているのが好ましい。
【００１８】
上記構成によれば、分岐継手の混合水栓への取付を専らネジ接合のみによって行うことができるので、取付作業が容易となり、施工性が向上する。また、上記構成によれば、第２継手部材の接続筒部に第１継手部材を嵌め込むことによって、分岐継手を簡単に組み立てることができる。
【００１９】
本発明による第３の混合水栓用分岐継手は、一側部に開口した湯分岐孔および他側部に開口した水分岐孔のうち少なくとも一方を有する混合水栓のいずれか１つの分岐孔から、該分岐孔とは反対の側に設置される水使用機器へ配管する際に用いられるものであって、
一端部に前記分岐孔に接続される分岐孔接続口部を有し、他端部が閉鎖され、かつ長さ中間部に外周面に開口した連通孔を有する第１継手部材と、
一端部が前記連通孔に通じるように第１継手部材に接続され、この一端部から第１継手部材と交差する方向に延び、他端部が閉鎖され、かつ長さ中間部に外周面に開口した連通孔を有する第２継手部材と、
一端部に第２継手部材の長さ中間部が回動自在に嵌め入れられる接続筒部を有し、この一端部から前記分岐孔とは反対の側に向かって延び、かつ他端部に分岐管の基端部が接続される分岐管接続口部を有する第３継手部材とを備えている。
【００２０】
上記の混合水栓用分岐継手にあっては、分岐管の基端部が接続される第３継手部材の分岐管接続口部が、水使用機器と同じ側を向く。したがって、本発明による第３の混合水栓用分岐継手によれば、接続すべき混合水栓の湯または水分岐孔とは反対の側に水使用機器が設置される場合でも、分岐管が折れ曲がらないので、分岐管が通水不良を起こしたり、分岐管が開閉バルブの操作ハンドルと干渉するといった問題が生じる恐れがない。また、上記分岐継手の場合、その第３継手部材が第２継手部材に対して回動自在であるので、分岐管の配管位置に合わせて第３継手部材の分岐管接続口部の向きを上下方向に微調整することができ、また、接続すべき湯または水分岐孔と同じ側に水使用機器を移動させたい時にも、第３継手部材を反転させるだけで対応できるので、便利である。
【００２１】
本発明による第３の混合水栓用分岐継手において、第１継手部材は、その他端部に、第３継手部材の分岐管接続口部に接続される分岐管とは別の分岐管の基端部を接続し得る分岐管接続口部を有しており、該接続口部が、これに着脱自在に取り付けられた閉鎖部材によって閉鎖されているのが好ましい。
【００２２】
第１継手部材が上記のような構成を有していれば、必要に応じて、更に別の水使用機器への分岐配管に容易に対応することができるので、便利である。また、上記の場合において、第１継手部材内に、連通孔に通じる流路と分岐管接続口部に通じる流路とに切り替える切替弁が設けられていてもよい。このような切替弁が第１継手部材に組み込まれていれば、配管中に切替弁を別途設ける必要がなく、便利である。
【００２３】
また、本発明による第３の混合水栓用分岐継手において、混合水栓の前記分岐孔が雌ネジを有しており、該雌ネジにねじ込まれる雄ネジが第１継手部材の分岐孔接続口部に設けられ、第２継手部材は、その一端部に、第１継手部材の長さ中間部が回動自在に嵌め入れられる接続筒部を有しているのが好ましい。
【００２４】
上記構成によれば、分岐継手の混合水栓への取付を専らネジ接合のみによって行うことができるので、取付作業が容易となり、施工性が向上する。また、上記構成によれば、第３継手部材の両接続筒部に第１継手部材および第２継手部材を嵌め込むことによって分岐継手を組み立てることができ、組立作業が楽である。
【００２５】
【発明の実施の形態】
図１および２には、本発明の第１の実施形態が示されている。この実施形態は、本発明による第１の混合水栓用分岐継手を、台所の流し台における混合水栓から食器洗い機への分岐配管に使用したものである。
【００２６】
図１および２に示す混合水栓用分岐継手(101)は、左側部に開口した湯分岐孔(M1)および右側部に開口した水分岐孔(M2)を有する混合水栓(M)の水分岐孔(M2)から、該分岐孔(M2)とは反対の左側に設置される食器洗い機(D)へ配管する際に用いられている。この分岐継手(101)は、左端部に水分岐孔(M2)に接続される分岐孔接続口部(21)を有し、右端部が閉鎖され、かつ長さ中間部に周面に開口した連通孔(22)を有する第１継手部材(2)と、右端部に湯分岐孔(M1)に嵌め込まれる分岐孔閉栓部(31)を有し、左端部に分岐管(P)の基端部が接続される分岐管接続口部(32)を有し、かつ長さ中間部に周面に開口した連通孔(33)を有する第２継手部材(3)と、両端部が前記連通孔(33)に通じるように第１継手部材(2)および第２継手部材(3)に接続される第３継手部材(4)とを備えている。
【００２７】
混合水栓(M)は、図５〜７に示す従来例のそれと同じものであって、湯分岐孔(M1)および水分岐孔(M2)には、同じサイズの雌ネジ(M11)(M21)が設けられている。
【００２８】
第１継手部材(2)は、例えば銅鋳物やステンレス鋼から形成された略筒状のものである。第１継手部材(2)の分岐孔接続口部(21)は、混合水栓(M)の水分岐孔(M2)の雌ネジ(M21)にねじ込まれる雄ネジ(21a)を有している。第１継手部材(2)の周面の左端部寄りには、分岐孔接続口部(21)に隣接しかつ混合水栓(M)の水分岐孔(M2)周縁部に当接させられる環状段差(23)が形成されている。また、第１継手部材(2)は、その右端部に、第２継手部材(3)の分岐管接続口部(32)に接続される分岐管(P)とは別の分岐管(図示略）の基端部を接続し得る分岐管接続口部(24)を有しており、該接続口部(24)が、これに着脱自在に取り付けられた閉鎖部材(25)によって閉鎖されている。第１継手部材(2)の分岐管接続口部(24)は、雄ネジ(24a)を有している。閉鎖部材(25)は、前記雄ネジ(24a)にねじ嵌められる雌ネジ(25a)を有する袋ナットで構成されている。第１継手部材(2)の周面の長さ中間部には、環状溝(26)が形成されている。そして、この環状溝(26)の底部に、２つの連通孔(22)が対称位置に形成されている。したがって、第１継手部材(2)の分岐孔接続口部(21)を混合水栓(M)の水分岐孔(M2)に完全にねじ込んだ状態において、該部材(2)の周方向における連通孔(22)の位置にかかわらず、第１継手部材(2)および第３継手部材(4)の内部どうしが、前記環状溝(26)を通じて連通させられるようになっている。
【００２９】
第２継手部材(3)も、例えば銅鋳物やステンレス鋼から形成された略筒状のものである。但し、第２継手部材(3)の右端部は、該部材(3)と一体に形成された右端壁(30)により閉鎖されていて、分岐孔閉栓部(31)を構成している。分岐孔閉栓部(31)は、混合水栓(M)の湯分岐孔(M1)の雌ネジ(M11)にねじ込まれる雄ネジ(31a)を有している。第２継手部材(3)の周面の右端部寄りには、分岐孔閉栓部(31)に隣接しかつ混合水栓(M)の湯分岐孔(M1)周縁部に当接させられる環状段差(35)が形成されている。第２継手部材(3)の分岐管接続口部(32)は、雄ネジ(32a)を有している。この分岐管接続口部(32)には、一端部に分岐管接続口部(32)の雄ネジ(32a)にねじ嵌められる袋ナット(601)を有しかつ他端部に雄型継手（図示略）を有する開閉バルブ(600)を介して、雌型継手(P1)を有する分岐管(P)の基端部が着脱自在に接続されている（図２参照）。第２継手部材(3)の周面の長さ中間部には、環状溝(34)が形成されている。そして、この環状溝(34)の底部に、２つの連通孔(33)が対称位置に形成されている。したがって、第２継手部材(3)の分岐孔閉栓部(31)を混合水栓(M)の湯分岐孔(M1)に完全にねじ込んだ状態において、該部材(3)の周方向における連通孔(33)の位置にかかわらず、第２継手部材(3)および第３継手部材(4)の内部どうしが、前記環状溝(34)を通じて連通させられるようになっている。
【００３０】
第３継手部材(4)は、平面より見て略Ｕ形のものであって、その左右両端部に、第１継手部材(2)および第２継手部材(3)の長さ中間部が回動自在に嵌め入れられる接続筒部(41)を有している。２つの接続筒部(41)どうしは、Ｕ形の金属管よりなる連通管部(42)によって互いに連通させられている。右側の接続筒部(41)と第１継手部材(2)との間、および左側の接続筒部(41)と第２継手部材(3)との間は、それぞれＯリングよりなるシール部材(27)(37)によりシールされている。右側の接続筒部(41)は、その左端面が混合水栓(M)の右側面に当接させられていると共に、その右端面が第１継手部材(2)の周面の右端部寄りに形成された環状段差(28)に当接させられている。同様に、左側の接続筒部(41)は、その右端面が混合水栓(M)の左側面に当接させられていると共に、その左端面が第２継手部材(3)の周面の左端部寄りに形成された環状段差(38)に当接させられている。
【００３１】
上記分岐継手(101)の組立および混合水栓(M)への取付は、例えば次のようにして行うことができる。即ち、まず、第３継手部材(4)を、その左側の接続筒部が混合水栓(M)の湯分岐孔(M1)に合致し、かつその右側の接続筒部(41)が混合水栓(M)の水分岐孔(M2)に合致するように、一方の手で保持しておく。そして、もう他方の手で、第２継手部材(3)を左側の接続筒部(41)に嵌め込んでいって、第２継手部材(3)の分岐孔閉栓部(31)を湯分岐孔(M1)にねじ込む。同様に、第１継手部材(2)を右側の接続筒部(41)に嵌め込んでいって、第１継手部材(2)の分岐孔接続口(21)を水分岐孔(M2)にねじ込む。こうして、分岐継手(101)が組み立てられるとともに、分岐継手(101)が混合水栓(M)に取り付けられる。
【００３２】
上記分岐継手(101)を用いて混合水栓(M)の右側の水分岐孔(M2)からこれとは反対の左側に位置する食器洗い機(D)への配管を行えば、図２に示すように、分岐管(P)に折れ曲がる箇所が生じない。したがって、分岐管(P)に通水不良が起こる心配がない上、分岐管(P)が開閉バルブ(600)のハンドル(602)に干渉せず、見栄えもよい。
【００３３】
なお、この実施形態では、本発明による第１の混合水栓用分岐継手を、混合水栓の水分岐孔から食器洗い機への配管に使用しているが、混合水栓の湯分岐孔からこれとは反対の側に設置される水使用機器への配管に使用することも勿論可能である。
【００３４】
図３には、本発明の第２の実施形態が示されている。この実施形態は、本発明による第２の混合水栓用分岐継手を、台所の流し台における混合水栓から食器洗い機への分岐配管に使用したものである。
【００３５】
図３の混合水栓用分岐継手(102)も、左側部に開口した湯分岐孔(M1)および右側部に開口した水分岐孔(M2)を有する混合水栓(M)の水分岐孔(M2)から、該分岐孔(M2)とは反対の左側に設置される食器洗い機(D)へ配管する際に用いられている（図２参照）。この分岐継手(102)は、左端部に水分岐孔(M2)に接続される分岐孔接続口部(21)を有し、右端部が閉鎖され、かつ長さ中間部に周面に開口した連通孔(22)を有する第１継手部材(2)と、右端部が前記連通孔(22)に通じるように第１継手部材(2)に接続され、この右端部から水分岐孔(M2)とは反対の左側に向かって折れ曲がり、かつ左端部に分岐管の基端部が接続される分岐管接続口部(51)を有する第２継手部材(5)とを備えている。
【００３６】
第１継手部材(2)は、図１および２に示す第１の実施形態のそれと同じ構造を有している。
【００３７】
第２継手部材(5)は、平面より見て略Ｌ形のものであって、その左端部に、第１継手部材(2)の長さ中間部が回動自在に嵌め入れられる接続筒部(52)を有している。接続筒部(52)と分岐管接続口部(51)とは、Ｌ形の金属管よりなる連通管部(53)によって互いに連通状に接続されている。接続筒部(52)と第１継手部材(2)との間は、Ｏリングよりなるシール部材(27)によりシールされている。接続筒部(52)は、その左端面が混合水栓(M)の右側面に当接させられていると共に、その右端面が第１継手部材(2)の周面の右端部寄りに形成された環状段差(28)に当接させられている。分岐管接続口部(51)は、雄ネジ(51a)を有している。この分岐管接続口部(51)には、一端部に分岐管接続口部(51)の雄ネジ(51a)にねじ嵌められる袋ナット(601)を有しかつ他端部に雄型継手を有する開閉バルブ(600)を介して、雌型継手(P1)を有する分岐管(P)の基端部が着脱自在に接続されるようになっている（図２参照）。
【００３８】
上記分岐継手(102)の組立および混合水栓(M)への取付は、例えば次のようにして行うことができる。即ち、まず、第１継手部材(2)を第２継手部材(5)の接続筒部(52)に嵌め込んで、分岐継手(102)を組み立てる。次いで、第２継手部材(5)を一方の手で保持しながら、他方の手で第１継手部材(2)の分岐孔接続口部(21)を混合水栓(M)の水分岐孔(M2)にねじ込む。こうして、分岐継手(102)が混合水栓(M)に取り付けられる。なお、混合水栓(M)の湯分岐孔(M1)は、これにねじ込まれた栓(P)により閉鎖されている。
【００３９】
上記分岐継手(102)を用いて混合水栓(M)の右側の水分岐孔(M2)からこれとは反対の左側に位置する食器洗い機(D)への配管を行えば、図２に示す第１の実施形態の場合と同様に、分岐管(P)に折れ曲がる箇所が生じない。したがって、分岐管(P)に通水不良が起こる心配がない上、分岐管(P)が開閉バルブ(600)のハンドル(602)に干渉せず、見栄えもよい。
【００４０】
なお、この実施形態では、本発明による第２の混合水栓用分岐継手を、混合水栓の水分岐孔から食器洗い機への配管に使用しているが、混合水栓の湯分岐孔からこれとは反対の側に設置される水使用機器への配管に使用することも勿論可能である。
【００４１】
図４には、本発明の第３の実施形態が示されている。この実施形態は、本発明による第３の混合水栓用分岐継手を、台所の流し台における混合水栓から食器洗い機への分岐配管に使用したものである。
【００４２】
図４の混合水栓用分岐継手(103)も、左側部に開口した湯分岐(M1)および右側部に開口した水分岐孔(M2)を有する混合水栓(M)の水分岐孔(M2)から、該分岐孔(M2)とは反対の左側に設置される食器洗い機(D)へ配管する際に用いられている（図２参照）。この分岐継手(103)は、左端部に水分岐孔(M2)に接続される分岐孔接続口部(21)を有し、右端部が閉鎖され、かつ長さ中間部に周面に開口した連通孔(22)を有する第１継手部材(2)と、前端部が前記連通孔(22)に通じるように第１継手部材(2)に接続され、この前端部から第１継手部材(2)と交差する方向、即ち、後方に延び、後端部が閉鎖され、かつ長さ中間部に外周面に開口した連通孔(61)を有する第２継手部材(6)と、右端部に第２継手部材(6)の長さ中間部が回動自在に嵌め入れられる接続筒部(71)を有し、この右端部から水分岐孔(M2)とは反対の左側に向かって延び、かつ左端部に分岐管の基端部が接続される分岐管接続口部(72)を有する第３継手部材(7)とを備えている。
【００４３】
第１継手部材(2)は、図１および２に示す第１の実施形態のそれと同じ構造を有している。
【００４４】
第２継手部材(6)は、その左端部に、第１継手部材(2)の長さ中間部が回動自在に嵌め入れられる接続筒部(62)を有している。接続筒部(62)と第１継手部材(2)との間は、Ｏリングよりなるシール部材(27)によりシールされている。接続筒部(62)は、その左端面が混合水栓(M)の右側面に当接させられていると共に、その右端面が第１継手部材(2)の外周面の右端部寄りに形成された環状段差(28)に当接させられている。第２継手部材(6)の後端部に雌ネジ(63)が設けられ、該雌ネジ(63)にフランジ(64a)付きナットよりなる閉鎖部材(64)がねじ込まれることにより、第２継手部材(6)の後端部が閉鎖されている。連通孔(61)は、第２継手部材(6)の長さ中間部の対称位置に計２つ設けられている。
【００４５】
第３継手部材(7)の接続筒部(71)と分岐管接続口部(72)とは、金属管よりなる連通管部(73)によって互いに連通状に接続されている。連通管部(73)は、混合水栓(M)と干渉しないように若干クランク形に屈曲させられている。第３継手部材(7)の接続筒部(71)内周面における第２継手部材(6)の連通孔(61)に対応する箇所には、環状溝(71a)が形成されている。したがって、第２継手部材(6)に対する第３継手部材(7)の回動位置にかかわらず、第２継手部材(6)および第３継手部材(7)の内部どうしが、環状溝(71a)を通じて連通させられるようになっている。接続筒部(71)と第２継手部材(6)との間は、Ｏリングよりなるシール部材(65)によりシールされている。接続筒部(71)は、第２継手部材(6)の閉鎖部材(64)を構成するナットのフランジ(64a)によって、第２継手部材(6)から抜け落ちないようになされている。分岐管接続口部(72)は、雄ネジ(72a)を有している。この分岐管接続口部(72)には、一端部に分岐管接続口部(72)の雌ネジ(72a)にねじ嵌められる袋ナット(601)を有しかつ他端部に雄型継手を有する開閉バルブ(600)を介して、雌型継手(P1)を有する分岐管(P)の基端部が接続されるようになっている（図２参照）。
【００４６】
上記の分岐継手(103)の組立および混合水栓(M)への取付は、例えば次のようにして行うことができる。即ち、まず、第１継手部材(2)を第２継手部材(6)の接続筒部(62)に嵌め込む。次に、第２継手部材(62)の後端部から閉鎖部材(64)を外しておいてから、第２継手部材(6)を第３継手部材(7)の接続筒部(71)に嵌め込んだ後、第２継手部材(6)の後端部に閉鎖部材(64)をねじ込む。こうして、分岐継手(103)が組み立てられる。そして、第２継手部材(6)および第３継手部材(7)を一方の手で保持しながら、他方の手で第１継手部材(2)の分岐孔接続口部(21)を混合水栓(M)の水分岐孔(M2)にねじ込むことにより、分岐継手(103)が混合水栓(M)に取り付けられる。混合水栓(M)の湯分岐孔(M1)は、これにねじ込まれた栓(P)により閉鎖されている。
【００４７】
上記分岐継手(103)を用いて混合水栓(M)の右側の水分岐孔(M2)からこれとは反対の左側に位置する食器洗い機(D)への配管を行えば、図２に示す第１の実施形態の場合と同様に、分岐管(P)に折れ曲がる箇所が生じない。したがって、分岐管(P)に通水不良が起こる心配がない上、分岐管(P)が開閉バルブ(600)のハンドル(602)に干渉せず、見栄えもよい。また、上記分岐継手(103)の場合、第３継手部材(7)が第２継手部材(6)に対して回動自在であるので、分岐管(P)の配管位置に合わせて第３継手部材(7)の分岐管接続口部(72)の向きを上下方向に微調整することができる。
【００４８】
なお、この実施形態では、本発明による第２の混合水栓用分岐継手を、混合水栓の水分岐孔から食器洗い機への配管に使用しているが、混合水栓の湯分岐孔からこれとは反対の側に設置される水使用機器への配管に使用することも勿論可能である。この場合、図４に２点鎖線で示すように、第３継手部材(7)を１８０度回転させるだけで対応できるので、きわめて便利である。
【００４９】
上記の各実施形態はあくまでも例示にすぎず、特許請求の範囲に記載された本発明の要旨を逸脱しない範囲で適宜に変更を加えた上で本発明を実施することも勿論可能である。
【図面の簡単な説明】
【図１】本発明の第１の実施形態を示すものであって、本発明による第１の混合水栓用分岐継手を混合水栓に取り付けた状態を示す水平断面図である。
【図２】上記分岐継手を用いた、台所の流し台における混合水栓から食器洗い機への分岐配管構造を示す平面図である。
【図３】本発明の第２の実施形態を示すものであって、本発明による第２の混合水栓用分岐継手を混合水栓に取り付けた状態を示す水平断面図である。
【図４】本発明の第３の実施形態を示すものであって、本発明による第３の混合水栓用分岐継手を混合水栓に取り付けた状態を示す水平断面図である。
【図５】台所の流し台における混合水栓から食器洗い機への分岐配管構造の従来例を示す垂直断面図である。
【図６】上記従来例を示す分岐継手および混合水栓の水平断面図である。
【図７】上記従来例を示す平面図である。
【符号の説明】
(M)：混合水栓
(M1)：湯分岐孔
(M11)：雌ネジ
(M2)：水分岐孔
(M21)：雌ネジ
(D)：食器洗い機(水使用機器)
(P)：分岐管
(101)：混合水栓用分岐継手
(2)：第１継手部材
(21)：分岐孔接続口部
(21a)：雄ネジ
(22)：連通孔
(24)：分岐管接続口部
(25)：閉鎖部材
(3)：第２継手部材
(31)：分岐孔閉栓部
(31a)：雄ネジ
(32)：分岐管接続口部
(33)：連通孔
(4)：第３継手部材
(41)：接続筒部
(102)：混合水栓用分岐継手
(5)：第２継手部材
(51)：分岐管接続口部
(52)：接続筒部
(103)：混合水栓用分岐継手
(6)：第２継手部材
(61)：連通孔
(62)：接続筒部
(7)：第３継手部材
(71)：接続筒部
(72)：分岐管接続口部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a branch joint used for piping from a water faucet having a hot water branch hole and / or a water branch hole to a water-using device such as a dishwasher or a water purifier.
[0002]
[Prior art]
For example, when a dishwasher or a water purifier is installed on a kitchen sink, it is common to use hot water or water taken out from a mixing faucet for the sink.
[0003]
5-7 shows the prior art example of the branch piping structure from the mixing faucet (M) to the dishwasher (D) in the kitchen sink (S) (for example, refer patent document 1). The mixing faucet (M) is of a single lever type, and is attached to the rear portion of the water tank (S2) in the top plate (S1) of the sink (S). The mixing faucet (M) has a hot water branch hole (M1) opened on the left side and a water branch hole (M2) opened on the right side. The hot water branch hole (M1) leads to the hot water introduction path (M3) in the mixing faucet body (M10), and the water branch hole (M2) is connected to the water introduction path (M4) in the mixing water faucet body (M10). ). Both branch holes (M1) (M2) have female screws (M11) (M21). On the other hand, the dishwasher (D) is installed on the left side of the water tank (S2) in the top plate (S1) of the sink (S). Then, the proximal end of the branch pipe (P) is connected to the water branch hole (M2) of the mixing faucet (M) via the branch joint (500), and the distal end of the branch pipe (P) is connected to the dishwasher (D ) Water inlet (not shown). A branch hole connection port portion (501) having a male screw (501a) screwed into the female screw (M21) of the water branch hole (M2) is formed at the left end portion of the branch joint (500). A branch pipe connection port (502) having a male screw (502a) is formed at the right end of the branch joint (500). The branch pipe connection port (502) has a cap nut (601) that is screwed into the male screw (502a) of the branch pipe connection port (502) at one end and a male joint (illustrated) at the other end. A base end portion of the branch pipe (P) having the female joint (P1) is detachably connected through an on-off valve (600) having an abbreviation). The hot water branch hole (M1) of the mixed water tap (M) is closed by a plug (P) having a male screw (P1) screwed into the female screw (M11) of the branch hole (M1).
[0004]
[Patent Document 1]
JP 2001-323526 A
[0005]
[Problems to be solved by the invention]
However, in the above-described branch piping structure, when the dishwasher (D) is installed on the side opposite to the water branch hole (M2) of the mixing faucet (M) as shown in FIG. For example, the branch pipe (P) made of the like may be bent, causing water flow failure or interfering with the handle (602) of the opening / closing valve (600).
[0006]
The object of the present invention is to pipe the branch pipe without bending even when a water-use device is installed on the side opposite to the hot water or water branch hole of the mixing faucet to which the branch pipe should be connected. It is to provide a possible branch joint.
[0007]
[Means for Solving the Problems and Effects of the Invention]
A first branch joint for a mixed water faucet according to the present invention includes a branch hole from one branch hole of a mixed water tap having a hot water branch hole opened on one side and a water branch hole opened on the other side. Used when piping to water-use equipment installed on the opposite side of
A first joint member having a branch hole connection port portion connected to the one branch hole at one end portion, the other end portion being closed, and a communication hole having an opening on the outer peripheral surface at an intermediate portion;
It has a branch hole plugging part fitted into the other branch hole at one end part, a branch pipe connection port part to which the base end part of the branch pipe is connected at the other end part, and an outer peripheral surface at the middle part of the length A second joint member having an open communication hole;
And a third joint member connected to the first joint member and the second joint member so that both ends communicate with the communication hole.
[0008]
In the mixed water faucet branch joint described above, the branch pipe connection port of the second joint member to which the base end of the branch pipe is connected faces the same side as the water-using device. Therefore, according to the first branch joint for mixed faucets of the present invention, even when the water using device is installed on the side opposite to the hot water or the water branch hole of the mixed faucet to which the branch pipe is to be connected, Since the pipe does not bend, there is no possibility that the branch pipe may cause poor water flow or the branch pipe may interfere with the operation handle of the opening / closing valve. Further, according to the first branch joint for mixed faucets of the present invention, the unused branch hole can be closed by the branch hole closing portion of the second joint member, so that a plug for closing the branch hole is separately provided. There is no need to prepare, and parts management and the like become easy.
[0009]
In the first branch joint for a mixed water faucet according to the present invention, the first joint member has a base end of a branch pipe different from the branch pipe connected to the branch pipe connection port of the second joint member at the other end. It is preferable to have a branch pipe connection port part to which the parts can be connected, and the connection port part is closed by a closing member detachably attached thereto.
[0010]
If the first joint member has the above-described configuration, it is convenient because it can easily correspond to a branch pipe to another water-using device as necessary. In the above case, a switching valve for switching between a flow path leading to the communication hole and a flow path leading to the branch pipe connection port may be provided in the first joint member. If such a switching valve is incorporated in the first joint member, there is no need to separately provide a switching valve in the pipe, which is convenient.
[0011]
Further, in the first branch joint for mixed faucets according to the present invention, each branch hole of the mixed faucet has a female screw, and the male screw screwed into the female screw is a branch hole connection port of the first joint member. And the second joint member are provided at the branch hole plugging portion, and the third joint member is a connecting cylinder in which the intermediate portions of the lengths of the first joint member and the second joint member are rotatably fitted to both ends thereof. It is preferable to have a part.
[0012]
According to the above configuration, the branch joint can be attached to the mixed water faucet only by screw joining, so that the attachment work is facilitated and the workability is improved. Moreover, according to the said structure, a branch joint can be easily assembled by fitting a 1st joint member and a 2nd joint member in both the connection cylinder parts of a 3rd joint member. In the above case, the two connecting tube portions are communicated with each other by the communication pipe portion. The communication pipe part may be constituted by a flexible pipe in addition to a U-shaped or arc-shaped metal pipe so as not to interfere with the mixing faucet.
[0013]
The second branch joint for a mixed water faucet according to the present invention includes any one of the mixed water faucets having at least one of a hot water branch hole opened on one side and a water branch hole opened on the other side. , Used when piping to water-use equipment installed on the opposite side of the branch hole,
A first joint member having a branch hole connection port portion connected to the branch hole at one end portion, the other end portion being closed, and a communication hole opened to the outer peripheral surface at a length intermediate portion;
One end is connected to the first joint member so as to communicate with the communication hole, the one end is bent toward the side opposite to the branch hole, and the base end of the branch pipe is connected to the other end. A second joint member having a branch pipe connection opening.
[0014]
In the mixed water faucet branch joint described above, the branch pipe connection port of the second joint member to which the base end of the branch pipe is connected faces the same side as the water-using device. Therefore, according to the second branch joint for mixed faucets of the present invention, the branch pipe is broken even when the water using device is installed on the side opposite to the hot water or the water branch hole of the mixed faucet to be connected. Since it does not bend, there is no possibility that the branch pipe may cause poor water flow or the branch pipe may interfere with the operation handle of the opening / closing valve.
[0015]
In the second branch joint for mixed faucets according to the present invention, the first joint member has a base end of a branch pipe different from the branch pipe connected to the branch pipe connection port of the second joint member at the other end. It is preferable to have a branch pipe connection port part to which the parts can be connected, and the connection port part is closed by a closing member detachably attached thereto.
[0016]
If the first joint member has the above-described configuration, it is convenient because it can easily correspond to a branch pipe to another water-using device as necessary. In the above case, a switching valve for switching between a flow path leading to the communication hole and a flow path leading to the branch pipe connection port may be provided in the first joint member. If such a switching valve is incorporated in the first joint member, there is no need to separately provide a switching valve in the pipe, which is convenient.
[0017]
Further, in the second branch joint for mixed taps according to the present invention, the branch hole of the mixed tap has a female screw, and the male screw screwed into the female screw is a branch hole connecting port of the first joint member. It is preferable that the second joint member has a connecting tube part at one end of which the middle part of the length of the first joint member is rotatably fitted.
[0018]
According to the above configuration, the branch joint can be attached to the mixed water faucet only by screw joining, so that the attachment work is facilitated and the workability is improved. Moreover, according to the said structure, a branch joint can be easily assembled by fitting a 1st joint member in the connection cylinder part of a 2nd joint member.
[0019]
The third branch joint for a mixing faucet according to the present invention includes a branch tap of any one of the mixing faucets having at least one of a hot water branch hole opened on one side and a water branch hole opened on the other side. , Used when piping to water-use equipment installed on the opposite side of the branch hole,
A first joint member having a branch hole connection port portion connected to the branch hole at one end portion, the other end portion being closed, and a communication hole opened to the outer peripheral surface at a length intermediate portion;
One end portion is connected to the first joint member so as to communicate with the communication hole, extends from the one end portion in a direction intersecting the first joint member, the other end portion is closed, and an opening is formed on the outer peripheral surface in the middle portion of the length. A second joint member having the communicating hole,
One end portion has a connecting tube portion in which the middle portion of the second joint member is rotatably fitted, extends from this one end portion to the side opposite to the branch hole, and branches to the other end portion And a third joint member having a branch pipe connection port to which the base end of the pipe is connected.
[0020]
In the mixed water faucet branch joint, the branch pipe connection port of the third joint member to which the base end of the branch pipe is connected faces the same side as the water-using device. Therefore, according to the third branch joint for mixed faucets of the present invention, the branch pipe is broken even when the water using device is installed on the side opposite to the hot water or the water branch hole of the mixed faucet to be connected. Since it does not bend, there is no possibility that the branch pipe may cause poor water flow or the branch pipe may interfere with the operation handle of the opening / closing valve. In the case of the above-mentioned branch joint, the third joint member is rotatable with respect to the second joint member, so that the direction of the branch pipe connection port of the third joint member is vertically changed according to the pipe position of the branch pipe. It can be finely adjusted in the direction, and when it is desired to move the water-using device to the same side as the hot water or the water branch hole to be connected, it can be handled simply by reversing the third joint member.
[0021]
In the third joint for a water faucet according to the present invention, the first joint member has a base end of a branch pipe different from the branch pipe connected to the branch pipe connection port of the third joint member at the other end. It is preferable to have a branch pipe connection port part to which the parts can be connected, and the connection port part is closed by a closing member detachably attached thereto.
[0022]
If the first joint member has the above-described configuration, it is convenient because it can easily correspond to a branch pipe to another water-using device as necessary. In the above case, a switching valve for switching between a flow path leading to the communication hole and a flow path leading to the branch pipe connection port may be provided in the first joint member. If such a switching valve is incorporated in the first joint member, there is no need to separately provide a switching valve in the pipe, which is convenient.
[0023]
In the third branch joint for a mixing faucet according to the present invention, the branch hole of the mixing faucet has a female screw, and the male screw screwed into the female screw is a branch hole connection port of the first joint member. It is preferable that the second joint member has a connecting tube part at one end of which the middle part of the length of the first joint member is rotatably fitted.
[0024]
According to the above configuration, the branch joint can be attached to the mixed water faucet only by screw joining, so that the attachment work is facilitated and the workability is improved. Moreover, according to the said structure, a branch joint can be assembled by fitting a 1st joint member and a 2nd joint member in both the connection cylinder parts of a 3rd joint member, and an assembly operation is easy.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show a first embodiment of the present invention. In this embodiment, the first branch joint for mixed faucets according to the present invention is used for a branch pipe from a mixed faucet to a dishwasher in a kitchen sink.
[0026]
1 and 2, the mixed water faucet branch joint (101) has a water faucet (M) having a hot water branch hole (M1) opened on the left side and a water branch hole (M2) opened on the right side. It is used when piping from the branch hole (M2) to the dishwasher (D) installed on the left side opposite to the branch hole (M2). This branch joint (101) has a branch hole connection port part (21) connected to the water branch hole (M2) at the left end part, the right end part is closed, and the length intermediate part opens to the peripheral surface. The first joint member (2) having the communication hole (22), the branch end plug portion (31) fitted into the hot water branch hole (M1) at the right end, and the base end of the branch pipe (P) at the left end A second joint member (3) having a branch pipe connection port portion (32) to which the portion is connected and having a communication hole (33) opened in the circumferential surface in the middle portion of the length, and both ends of the communication hole And a third joint member (4) connected to the first joint member (2) and the second joint member (3) so as to communicate with (33).
[0027]
The mixing faucet (M) is the same as that of the conventional example shown in FIGS. 5 to 7, and the hot water branch hole (M1) and the water branch hole (M2) have female screws (M11) (M21) of the same size. ) Is provided.
[0028]
The first joint member (2) is a substantially cylindrical member formed from, for example, a copper casting or stainless steel. The branch hole connection port portion (21) of the first joint member (2) has a male screw (21a) that is screwed into the female screw (M21) of the water branch hole (M2) of the mixing faucet (M). . Near the left end of the peripheral surface of the first joint member (2), an annular shape adjacent to the branch hole connection port (21) and brought into contact with the peripheral edge of the water branch hole (M2) of the mixing faucet (M) A step (23) is formed. The first joint member (2) has a branch pipe (not shown) at the right end thereof, which is different from the branch pipe (P) connected to the branch pipe connection port (32) of the second joint member (3). ) Is connected to a branch pipe connection port portion (24) to which the base end portion can be connected, and the connection port portion (24) is closed by a closing member (25) removably attached thereto. . The branch pipe connection port (24) of the first joint member (2) has a male screw (24a). The closing member (25) is constituted by a cap nut having a female screw (25a) screwed into the male screw (24a). An annular groove (26) is formed in the middle portion of the length of the peripheral surface of the first joint member (2). Then, two communication holes (22) are formed at symmetrical positions at the bottom of the annular groove (26). Accordingly, in the state where the branch hole connection port (21) of the first joint member (2) is completely screwed into the water branch hole (M2) of the mixing faucet (M), the communication in the circumferential direction of the member (2) is achieved. Regardless of the position of the hole (22), the insides of the first joint member (2) and the third joint member (4) are communicated with each other through the annular groove (26).
[0029]
The second joint member (3) is also a substantially cylindrical member formed from, for example, a copper casting or stainless steel. However, the right end portion of the second joint member (3) is closed by a right end wall (30) formed integrally with the member (3) to constitute a branch hole plug portion (31). The branch hole closing part (31) has a male screw (31a) screwed into the female screw (M11) of the hot water branch hole (M1) of the mixed water tap (M). Near the right end of the peripheral surface of the second joint member (3), an annular step adjacent to the peripheral edge of the hot water branch hole (M1) of the mixing faucet (M) adjacent to the branch hole plug part (31) (35) is formed. The branch pipe connection port (32) of the second joint member (3) has a male screw (32a). This branch pipe connection port portion (32) has a cap nut (601) screwed into the male screw (32a) of the branch pipe connection port portion (32) at one end portion and a male joint ( A base end of a branch pipe (P) having a female joint (P1) is detachably connected via an on-off valve (600) having a not-shown) (see FIG. 2). An annular groove (34) is formed in the middle portion of the length of the peripheral surface of the second joint member (3). And two communicating holes (33) are formed in a symmetrical position at the bottom of the annular groove (34). Therefore, in the state where the branch hole plug part (31) of the second joint member (3) is completely screwed into the hot water branch hole (M1) of the mixed water tap (M), the communication hole in the circumferential direction of the member (3) Regardless of the position of (33), the insides of the second joint member (3) and the third joint member (4) are communicated with each other through the annular groove (34).
[0030]
The third joint member (4) is substantially U-shaped when viewed from the plane, and the intermediate portions of the lengths of the first joint member (2) and the second joint member (3) are turned around the left and right ends. It has a connecting tube part (41) that can be freely fitted. The two connection tube portions (41) are connected to each other by a communication tube portion (42) made of a U-shaped metal tube. Between the right connecting tube portion (41) and the first joint member (2) and between the left connecting tube portion (41) and the second joint member (3), a sealing member comprising an O-ring ( 27) Sealed by (37). The right connecting cylinder (41) has its left end face in contact with the right side face of the mixing tap (M) and its right end face close to the right end of the peripheral surface of the first joint member (2). It is made to contact | abut to the cyclic | annular level | step difference (28) formed in this. Similarly, the left connecting cylinder (41) has its right end face in contact with the left side face of the mixing faucet (M) and its left end face on the peripheral surface of the second joint member (3). It is made to contact | abut to the cyclic | annular level | step difference (38) formed near the left end part.
[0031]
Assembly of the branch joint (101) and attachment to the mixing faucet (M) can be performed, for example, as follows. That is, first, the third joint member (4) has its left connecting cylinder part aligned with the hot water branch hole (M1) of the mixing faucet (M) and its right connecting cylinder part (41) is mixed water. Hold with one hand so that it matches the water branch hole (M2) of the stopper (M). Then, with the other hand, the second joint member (3) is fitted into the left connecting tube portion (41), and the branch hole closing portion (31) of the second joint member (3) is inserted into the hot water branch hole. Screw into (M1). Similarly, the first joint member (2) is fitted into the right connection tube portion (41), and the branch hole connection port (21) of the first joint member (2) is screwed into the water branch hole (M2). . Thus, the branch joint (101) is assembled, and the branch joint (101) is attached to the mixing faucet (M).
[0032]
FIG. 2 shows the piping from the water branch hole (M2) on the right side of the mixing faucet (M) to the dishwasher (D) located on the opposite side to the left side using the branch joint (101). As described above, the bent portion (P) is not bent. Therefore, there is no fear that water flow failure will occur in the branch pipe (P), and the branch pipe (P) does not interfere with the handle (602) of the on-off valve (600), so that it looks good.
[0033]
In this embodiment, the first branch joint for mixed faucets according to the present invention is used for piping from the water branch hole of the mixed faucet to the dishwasher. Of course, it is also possible to use it for piping to water-using equipment installed on the opposite side.
[0034]
FIG. 3 shows a second embodiment of the present invention. In this embodiment, the second mixing faucet branch joint according to the present invention is used for a branch pipe from a mixing faucet to a dishwasher in a kitchen sink.
[0035]
3 is also provided with a water branch hole (M1) having a hot water branch hole (M1) opened on the left side and a water branch hole (M2) opened on the right side (M2). It is used when piping from M2) to the dishwasher (D) installed on the left side opposite to the branch hole (M2) (see FIG. 2). This branch joint (102) has a branch hole connection port part (21) connected to the water branch hole (M2) at the left end part, the right end part is closed, and the length intermediate part opens to the peripheral surface. A first joint member (2) having a communication hole (22) and a right end portion are connected to the first joint member (2) so as to communicate with the communication hole (22), and a water branch hole (M2) is connected to the right end portion. And a second joint member (5) having a branch pipe connection port portion (51) which is bent toward the left side opposite to the left end and is connected to the base end portion of the branch pipe at the left end portion.
[0036]
The first joint member (2) has the same structure as that of the first embodiment shown in FIGS.
[0037]
The second joint member (5) is substantially L-shaped when viewed from the plane, and a connecting cylinder portion in which the intermediate portion of the length of the first joint member (2) is rotatably fitted to the left end portion thereof. (52). The connecting tube part (52) and the branch pipe connection port part (51) are connected to each other by a communication pipe part (53) made of an L-shaped metal pipe. The connection tube portion (52) and the first joint member (2) are sealed with a seal member (27) made of an O-ring. The connecting tube portion (52) has a left end surface in contact with the right side surface of the mixing tap (M) and a right end surface formed closer to the right end portion of the peripheral surface of the first joint member (2). It is made to contact | abut to the cyclic | annular level | step difference (28) made. The branch pipe connection port portion (51) has a male screw (51a). The branch pipe connection port portion (51) has a cap nut (601) screwed into the male screw (51a) of the branch pipe connection port portion (51) at one end portion and a male joint at the other end portion. A proximal end portion of the branch pipe (P) having the female joint (P1) is detachably connected through the open / close valve (600) having the same (see FIG. 2).
[0038]
Assembly of the branch joint (102) and attachment to the mixing faucet (M) can be performed, for example, as follows. That is, first, the first joint member (2) is fitted into the connecting tube portion (52) of the second joint member (5) to assemble the branch joint (102). Next, while holding the second joint member (5) with one hand, the other hand holds the branch hole connection port (21) of the first joint member (2) with the water branch hole (M) Screw into M2). Thus, the branch joint (102) is attached to the mixing faucet (M). Note that the hot water branch hole (M1) of the mixed water tap (M) is closed by a plug (P) screwed therein.
[0039]
FIG. 2 shows the piping from the water branch hole (M2) on the right side of the mixing faucet (M) to the dishwasher (D) located on the left side opposite to this using the branch joint (102). As in the case of the first embodiment, the bent portion (P) is not bent. Therefore, there is no fear that water flow failure will occur in the branch pipe (P), and the branch pipe (P) does not interfere with the handle (602) of the on-off valve (600), so that it looks good.
[0040]
In this embodiment, the second branch joint for mixing faucets according to the present invention is used for piping from the water branch hole of the mixing faucet to the dishwasher. Of course, it is also possible to use it for piping to water-using equipment installed on the opposite side.
[0041]
FIG. 4 shows a third embodiment of the present invention. In this embodiment, the third branch joint for mixed faucets according to the present invention is used for a branch pipe from a mixed faucet to a dishwasher in a kitchen sink.
[0042]
4 is also provided with a water branch hole (M2) of the mixed water tap (M2) having a hot water branch (M1) opened on the left side and a water branch hole (M2) opened on the right side. ) To the dishwasher (D) installed on the left side opposite to the branch hole (M2) (see FIG. 2). This branch joint (103) has a branch hole connection port part (21) connected to the water branch hole (M2) at the left end part, the right end part is closed, and the length intermediate part opens to the peripheral surface. A first joint member (2) having a communication hole (22) and a front end portion are connected to the first joint member (2) so as to communicate with the communication hole (22), and the first joint member (2 ), A second joint member (6) having a communication hole (61) that extends rearward, has a rear end closed, and has an opening on the outer peripheral surface in the middle portion. The intermediate part of the length of the two joint members (6) has a connecting cylinder part (71) into which the joint part is rotatably fitted, extends from the right end part toward the left side opposite to the water branch hole (M2), and And a third joint member (7) having a branch pipe connection port portion (72) to which a base end portion of the branch pipe is connected to the left end portion.
[0043]
The first joint member (2) has the same structure as that of the first embodiment shown in FIGS.
[0044]
The second joint member (6) has, at the left end thereof, a connecting tube part (62) into which the intermediate part of the length of the first joint member (2) is rotatably fitted. The connection tube portion (62) and the first joint member (2) are sealed with a seal member (27) made of an O-ring. The connecting cylinder part (62) has its left end face in contact with the right side face of the mixing faucet (M), and its right end face is formed closer to the right end part of the outer peripheral surface of the first joint member (2). It is made to contact | abut to the cyclic | annular level | step difference (28) made. A female screw (63) is provided at the rear end portion of the second joint member (6), and a closing member (64) made of a nut with a flange (64a) is screwed into the female screw (63). The rear end of the member (6) is closed. A total of two communicating holes (61) are provided at symmetrical positions in the middle portion of the length of the second joint member (6).
[0045]
The connection cylinder part (71) and the branch pipe connection port part (72) of the third joint member (7) are connected to each other by a communication pipe part (73) made of a metal pipe. The communication pipe part (73) is slightly bent in a crank shape so as not to interfere with the mixing faucet (M). An annular groove (71a) is formed at a location corresponding to the communication hole (61) of the second joint member (6) on the inner peripheral surface of the connection tube portion (71) of the third joint member (7). Therefore, regardless of the rotational position of the third joint member (7) relative to the second joint member (6), the insides of the second joint member (6) and the third joint member (7) are connected to the annular groove (71a). It can be communicated through. The connection tube portion (71) and the second joint member (6) are sealed with a seal member (65) made of an O-ring. The connecting tube portion (71) is prevented from falling off from the second joint member (6) by the flange (64a) of the nut constituting the closing member (64) of the second joint member (6). The branch pipe connection port portion (72) has a male screw (72a). This branch pipe connection port (72) has a cap nut (601) that is screwed into the female screw (72a) of the branch pipe connection port (72) at one end and a male joint at the other end. The proximal end portion of the branch pipe (P) having the female joint (P1) is connected via the open / close valve (600) having the same (see FIG. 2).
[0046]
Assembly of the branch joint (103) and attachment to the mixing faucet (M) can be performed, for example, as follows. That is, first, the first joint member (2) is fitted into the connection tube portion (62) of the second joint member (6). Next, after removing the closing member (64) from the rear end of the second joint member (62), the second joint member (6) is connected to the connecting tube portion (71) of the third joint member (7). After the fitting, the closing member (64) is screwed into the rear end portion of the second joint member (6). Thus, the branch joint (103) is assembled. And while holding the second joint member (6) and the third joint member (7) with one hand, the branch hole connection port (21) of the first joint member (2) is mixed with the other hand. The branch joint (103) is attached to the mixing faucet (M) by screwing into the water branch hole (M2) of (M). The hot water branch hole (M1) of the mixed water tap (M) is closed by a plug (P) screwed therein.
[0047]
FIG. 2 shows the piping from the water branch hole (M2) on the right side of the mixing faucet (M) to the dishwasher (D) located on the opposite left side using the branch joint (103). As in the case of the first embodiment, the bent portion (P) is not bent. Therefore, there is no fear that water flow failure will occur in the branch pipe (P), and the branch pipe (P) does not interfere with the handle (602) of the on-off valve (600), so that it looks good. In the case of the branch joint (103), the third joint member (7) is rotatable with respect to the second joint member (6), so that the third joint is matched to the piping position of the branch pipe (P). The direction of the branch pipe connection port (72) of the member (7) can be finely adjusted in the vertical direction.
[0048]
In this embodiment, the second branch joint for mixing faucets according to the present invention is used for piping from the water branch hole of the mixing faucet to the dishwasher. Of course, it is also possible to use it for piping to water-using equipment installed on the opposite side. In this case, as shown by a two-dot chain line in FIG. 4, the third joint member (7) can be dealt with only by rotating 180 degrees, which is very convenient.
[0049]
Each of the above embodiments is merely an example, and it is of course possible to implement the present invention with appropriate modifications without departing from the gist of the present invention described in the claims.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of the present invention and is a horizontal sectional view showing a state in which a first branch joint for a mixed water faucet according to the present invention is attached to a mixed water faucet.
FIG. 2 is a plan view showing a branch piping structure from a mixing faucet to a dishwasher in a kitchen sink using the branch joint.
FIG. 3 is a horizontal sectional view showing a second embodiment of the present invention and showing a state in which a second branch joint for mixed faucets according to the present invention is attached to the mixed faucet.
FIG. 4 is a horizontal sectional view showing a third embodiment of the present invention and showing a state in which a third branch joint for a mixed water faucet according to the present invention is attached to the mixed water faucet.
FIG. 5 is a vertical sectional view showing a conventional example of a branch piping structure from a mixing faucet to a dishwasher in a kitchen sink.
FIG. 6 is a horizontal sectional view of a branch joint and a mixing faucet showing the above conventional example.
FIG. 7 is a plan view showing the conventional example.
[Explanation of symbols]
(M): Mixing tap
(M1): Hot water branch hole
(M11): Female thread
(M2): Water branch hole
(M21): Female thread
(D): Dishwasher (water use equipment)
(P): Branch pipe
(101): Branch joint for mixed faucet
(2): First joint member
(21): Branch hole connection port
(21a): Male thread
(22): Communication hole
(24): Branch pipe connection port
(25): Closing member
(3): Second joint member
(31): Branch hole closure
(31a): Male thread
(32): Branch pipe connection
(33): Communication hole
(4): Third joint member
(41): Connection tube
(102): Branch joint for mixed faucets
(5): Second joint member
(51): Branch pipe connection
(52): Connection tube
(103): Branch joint for mixed faucets
(6): Second joint member
(61): Communication hole
(62): Connection tube
(7): Third joint member
(71): Connection tube
(72): Branch pipe connection

Claims

From one branch hole (M2) of the mixed faucet (M2) having a hot water branch hole (M1) opened on one side and a water branch hole (M2) opened on the other side, the branch hole (M2 ) Is a branch joint (101) used when piping to a water-using device (D) installed on the opposite side,
A communication hole (22) having a branch hole connection port portion (21) connected to the one branch hole (M2) at one end portion, the other end portion being closed, and an opening on the outer peripheral surface in the middle portion of the length A first joint member (2) having
A branch hole plug part (31) having a branch hole plug part (31) fitted into the other branch hole (M1) at one end part and a base end part of the branch pipe (P) connected to the other end part. A second joint member (3) having a communication hole (33) having an opening on the outer peripheral surface at an intermediate portion of the length;
Mixed water comprising a first joint member (2) and a third joint member (4) connected to the second joint member (3) so that both ends communicate with the communication holes (22) and (33) Branch joint for stopper.

The first joint member (2) has a base end of a branch pipe different from the branch pipe (P) connected to the branch pipe connection port (32) of the second joint member (3) at the other end. 2. The branch pipe connection port portion (24) that can be connected, and the connection port portion (24) is closed by a closing member (25) removably attached thereto. Branch joint for mixed faucets.

Each branch hole (M1) (M2) of the mixing faucet (M) has a female screw (M11) (M21), and the male screw (21a) (31a) screwed into the female screw (M11) (M21) ) Are provided at the branch hole connection port portion (21) of the first joint member (2) and the branch hole plug portion (31) of the second joint member (3), and the third joint member (4) has both end portions thereof. 3. The mixing device according to claim 1, further comprising a connecting tube portion (41) into which a middle portion of the length of the first joint member (2) and the second joint member (3) is rotatably fitted. Branch joint for faucets.

From any one branch hole (M2) of the mixed water tap (M) having at least one of the hot water branch hole (M1) opened on one side and the water branch hole (M2) opened on the other side, A branch joint (102) used when piping to a water use device (D) installed on the opposite side of the branch hole (M2),
One end portion has a branch hole connection port portion (21) connected to the branch hole (M2), the other end portion is closed, and a communication hole (22) opened to the outer peripheral surface in the middle portion of the length. A first joint member (2);
One end is connected to the first joint member (2) so as to communicate with the communication hole (22), bent from the one end toward the side opposite to the branch hole (M2), and branched to the other end. And a second joint member (5) having a branch pipe connection port portion (51) to which a proximal end portion of the pipe (P) is connected.

The first joint member (2) has a base end of a branch pipe different from the branch pipe (P) connected to the branch pipe connection port (51) of the second joint member (5) at the other end. 5. The branch pipe connection port portion (24) that can be connected, and the connection port portion (24) is closed by a closing member (25) removably attached thereto. Branch joint for mixed faucets.

The branch hole (M2) of the mixing faucet (M) has a female screw (M21), and the male screw (21a) screwed into the female screw (M2) is a branch hole of the first joint member (2). The connecting tube portion (52) provided in the connection port portion (21), and the second joint member (5) is rotatably fitted at one end thereof with the intermediate portion of the length of the first joint member (2). The branch joint for a mixed water faucet according to claim 4 or 5, wherein:

From any one branch hole (M2) of the mixed water tap (M) having at least one of the hot water branch hole (M1) opened on one side and the water branch hole (M2) opened on the other side, A branch joint (103) used when piping to a water use device (D) installed on the opposite side of the branch hole (M2),
One end portion has a branch hole connection port portion (21) connected to the branch hole (M2), the other end portion is closed, and a communication hole (22) opened to the outer peripheral surface in the middle portion of the length. A first joint member (2);
One end is connected to the first joint member (2) so as to communicate with the communication hole (22), extends from the one end in a direction intersecting the first joint member (2), the other end is closed, and A second joint member (6) having a communication hole (61) opened in the outer peripheral surface at an intermediate portion of the length;
One end has a connecting tube portion (71) into which the intermediate length of the second joint member (6) is rotatably fitted. From this one end portion, it faces the side opposite to the branch hole (M2). And a third joint member (7) having a branch pipe connection port (72) to which the base end of the branch pipe (P) is connected to the other end. .

The first joint member (2) has a base end of a branch pipe different from the branch pipe (P) connected to the branch pipe connection port (72) of the third joint member (7) at the other end. The branch pipe connection port portion (24) that can be connected, and the connection port portion (24) is closed by a closing member (25) removably attached thereto. Branch joint for mixed faucets.

The branch hole (M2) of the mixing faucet (M) has a female screw (M21), and the male screw (21a) screwed into the female screw (M21) is a branch hole of the first joint member (2). The connection tube portion (62) provided in the connection port portion (21), and the second joint member (6) is rotatably fitted at one end thereof with the intermediate portion of the length of the first joint member (2). The branch joint for a mixed water faucet according to claim 7 or 8, comprising: