JP4156971B2 - Hot water outlet device for bathtub - Google Patents

Hot water outlet device for bathtub Download PDF

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JP4156971B2
JP4156971B2 JP2003131427A JP2003131427A JP4156971B2 JP 4156971 B2 JP4156971 B2 JP 4156971B2 JP 2003131427 A JP2003131427 A JP 2003131427A JP 2003131427 A JP2003131427 A JP 2003131427A JP 4156971 B2 JP4156971 B2 JP 4156971B2
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hot water
bathtub
main body
flow path
apparatus main
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JP2004333057A (en
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光則 波多野
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株式会社ハタノ製作所
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Description

【0001】
【発明の属する技術分野】
この発明は、浴槽壁部に設けられ、浴槽に対し温水の吐出や吸込を行うための浴槽用温水口装置に関する。
【0002】
【従来の技術】
従来、浴槽と給湯機とが配管接続されて、貯湯処理や追い焚き処理を行うようにした浴槽システムが周知である。この浴槽システムにおいては、浴槽の側壁に貫通状態に温水口装置が取り付けられるとともに、この装置と室外の給湯機とが配管接続されている。そして、貯湯時には、給湯機から供給された温水を温水口装置を介して浴槽内に導入するとともに、追い焚き時には、槽内の温水を温水口装置から吸い込んで給湯機に送り込み、そこで再加熱した後、槽内に戻すようにしている。
【0003】
このような浴槽システムに用いられる温水口装置としては、例えば下記特許文献1に示すように、浴槽外面側に取り付けられる槽外取付具と、浴槽内面側から取り付けられる装置本体とを備えるものが周知である。更に装置本体は、浴槽内面側から取り付けられる鍔付き筒状の槽内取付具や、槽内取付具の鍔部にビス止め固定される流路形成部材等を備えている。そしてこの温水口装置を浴槽に組み付ける場合には、例えば、浴槽の側壁外面側における取付孔に対応する位置に、槽外取付具を配置しておき、槽内取付具の筒体を、浴槽の内側から取付孔に挿通して槽外取付具にねじ込んで固定する。その後、槽内取付具に流路形成部材をビス止めにより固定して、その流路形成部材の露出部(前部)を覆うようにフィルター部材を装着するものである。
【0004】
【特許文献1】
特開平10−47783号
【0005】
【発明が解決しようとする課題】
ところで、上記のような従来の浴槽用温水口装置においては、槽内取付具を槽外取付具にねじ込み固定する際に、槽内取付具の筒孔内に、専用のねじ込み操作用治具を挿入係合して、その治具を介して槽内取付具を槽外取付具に対しねじ込み固定するものである。このように専用のねじ込み操作用治具を用いるものであるため、専用治具の準備や使用方法に余分な労力が費やされて、組付作業が困難であるという問題があった。
【0006】
更に従来の浴槽用温水口装置においては、槽内取付具を浴槽壁面に組み付けた後、その槽内取付具に、複数のビスを用いて流路形成部材を固定するものであるため、流路形成部材のビス止め作業を、浴槽内における取付孔周辺の限られた狭いスペース内で行う必要がある。このため、このビス止め作業を、窮屈な状態で行わねばならず、作業者にとって多大な負担となり、より一層組付作業が困難になるという問題があった。
【0007】
この発明は、上記従来技術の問題を解消し、専用工具等を必要とせず、簡単かつ確実に組み付けることができる浴槽用温水口装置を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成するため、本第1発明は、浴槽壁部の取付孔に貫通状態に設けられる浴槽用温水口装置であって、取付孔の浴槽外面側に配置される槽外取付具と、前部が浴槽内面側に配置される態様に取付孔を通じて前記槽外取付具にねじ込み固定される装置本体とを備え、前記装置本体の前部における外表面に、汎用工具を挿入し、かつその挿入状態においては汎用工具を前記装置本体の軸心回り方向に係合するための汎用工具係合孔が設けられてなるものを要旨としている。
【0009】
この発明の浴槽用温水口装置においては、装置本体の前部に汎用工具係合孔を形成するものであるため、装置本体を浴槽壁部の取付孔を通じて槽外取付具にねじ込む際に、装置本体の汎用工具係合孔にスクリュードライバー等の汎用工具を挿入係合し、その汎用工具を利用して装置本体を槽外取付具にねじ込むことにより、専用の工具を用いずに、装置本体を強固に確実に組み付けることができる。従って、専用工具の準備や使用方法等に余分な労力を費やす必要がなく、組付作業を効率良く簡単に行うことができる。
【0010】
本発明において、前記装置本体は、取付孔を通じて前記槽外取付具にねじ止め固定される槽内取付具と、その槽内取付具の前面側に取り付けられる流路形成部材とを具備し、前記流路形成部材の前部が、前記装置本体の前部として構成されてなるものを好適に採用することができる。
【0011】
この場合には、流路形成部材を槽内取付具に取り付けて、装置本体を組み立てた後、その装置本体を槽外取付具にねじ込んで固定することができるので、例えば従来のように、槽内取付具を槽外取付具にねじ込み固定した後、その槽内取付具に流路形成部材を取り付ける場合と比較して、組付作業をより一層効率良く行うことができる。すなわち従来のように、浴槽壁面に取り付けられた槽内取付具に流路形成部材を取り付ける場合には、その取付作業を浴槽内における狭いスペース内で行う必要があり、作業者にとって多大な負担を強いられて、組付作業を効率良く行うことが困難である。これに対し、本発明のように、流路形成部材を槽内取付具に取り付けて装置本体を組み立てた後、その装置本体を槽外取付具にねじ込む場合には、装置本体の組立作業を、現場(浴槽内)以外の適当な場所で余裕を持って行うことができ、組付作業を効率良くスムーズに行うことができる。
【0012】
本発明においては、前記装置本体の前部には、軸心回り方向に沿って外周壁が設けられ、その外周壁に前記汎用工具係合孔が形成されてなる構成を好適に採用することができる。
【0013】
更に本発明においては、前記装置本体の前部には、軸心回り方向に沿って外周壁が設けられるとともに、その外周壁の前面側に蓋体が設けられ、前記蓋体に前記汎用工具係合孔が形成されてなる構成を好適に採用することができる。
【0014】
また本発明において、前記汎用工具係合孔は、スクリュードライバーのドライバー軸を係合し得るドライバー軸係合孔をもって構成されてなるものを採用するのが好ましい。
【0015】
すなわちこの場合には、スクリュードライバー等の汎用工具を用いて、温水口装置を確実に組み付けることができる。
【0016】
更に本発明においては、前記ドライバー軸係合孔に、スクリュードライバーのドライバー軸を挿入係合した状態において、そのスクリュードライバーの把持部が浴槽内面から離間して配置されるよう構成されてなるものを採用するのが望ましい。
【0017】
すなわちこの場合には、ドライバーの把持部が浴槽内面から離間して配置されるため、例えばドライバーの把持部を手で持って、ドライバー及び装置本体をねじ込み操作する際に、作業者の手が浴槽内壁面に干渉するような不具合を有効に防止することができ、なお一層、効率良くスムーズに装置本体のねじ込み作業を行うことができる。
【0018】
また本発明においては、前記汎用工具係合孔は、その軸心が前記装置本体の軸心に対し傾斜するよう設定されてなる構成を採用するのが、より一層好ましい。
【0019】
すなわちこの構成を作業する場合には、汎用工具と浴槽内壁面との間に、確実に回転操作用の作業スペースを確保することができる。
【0020】
一方、上記目的を達成するため、本第2の発明は、浴槽壁部の取付孔に貫通状態に設けられる浴槽用温水口装置であって、取付孔の浴槽外面側に配置される槽外取付具と、前部が浴槽内面側に配置される態様に取付孔を通じて前記槽外取付具にねじ込み固定される装置本体とを備え、前記装置本体の前部における外表面に、汎用工具を前記装置本体の軸心回り方向に係合するための汎用工具係合部が設けられてなるものを要旨としている。
【0021】
この第2発明においても、上記第1発明と同様に、汎用工具係合部にスクリュードライバー等の汎用工具を係合し、その汎用工具を利用して装置本体を槽外取付具にねじ込むことにより、専用の工具を用いずに、装置本体を強固に確実に組み付けることができる。
【0022】
【発明の実施の形態】
図1ないし図3はこの発明の実施形態である浴槽用温水口装置(P)を示す図である。これらの図に示すように、この実施形態の温水口装置(P)は、浴槽(T)の側壁に設けられた取付孔(H)に取り付けられるものであって、浴槽(T)の外部に設けられた給湯機から供給される温水を浴槽(T)内に供給して、湯はり等の貯湯処理を行うことができる。更に浴槽(T)内の温水を吸い込んで給湯機に送り、そこで再加熱して、その高温の温水を浴槽(T)に戻して、追い焚き等の強制循環処理を行うこともできる。
【0023】
なお、この温水口装置(P)は、この装置(P)が備える2つの外管接続部(1a)(1b)に対して、給湯機につながる往き管及び戻り管のどちらを接続しても使用可能な、いわゆる無極性タイプのものである。
【0024】
図1ないし図3に示すように、本実施形態の温水口装置(P)は、槽外取付具(1)と、装置本体(10)と、フィルター部材(9)とを基本的な構成要素として備え、更に装置本体(10)は、槽内取付具(2)と、流路形成部材(3)とを備えている。
【0025】
槽外取付具(1)は、一端側(前面側)が開放され、かつ他端側(後面側)が閉塞された円筒形状の外筒体(12)と、その外筒体(12)の内部に同軸心上に配置される円筒形状の内筒体(11)と、外筒体(12)の一端外周に設けられた平板リング状のフランジ(15)と、外筒体(12)の他端閉塞壁に設けられ、かつ軸心方向に沿って他端側に延びる管状の第1及び第2外管接続部(1a)(1b)とを一体に有する金属製品をもって構成されている
内筒体(11)の内側空間は、第1流路(A)の一部として構成されるとともに、内筒体(11)及び外筒体(12)との間の空間は、第2流路(B)の一部として構成されており、上記第1外管接続部(1a)が第1流路(A)に連通されるとともに、第2外管接続部(1b)が第2流路(B)に連通されている。
【0026】
更に外筒体(11)の一端側内周面には、雌ねじ(14)が刻設されている。
【0027】
また内筒体(11)の内周面前端部には、合成ゴム製のオーリング(81)が収容配置される。
【0028】
槽外取付具(1)のフランジ(15)に設けられるリング状の合成ゴム製被覆パッキン(82)は、その内周面に沿って嵌合溝(82a)が形成されている。そして、この被覆パッキン(82)が、その嵌合溝(82a)をフランジ(15)に嵌め込むことにより、フランジ(15)の外周面ほぼ全域を被覆した状態で密着固定される。
【0029】
更に被覆パッキン(82)の前面側は、厚板状に形成されて、パッキン本体(82b)として構成されるとともに、そのパッキン本体(82b)の表裏面には、周方向に連続する複数の密着用突条リブ(82c)が一体に形成されている。
【0030】
図1ないし図4に示すように、装置本体(10)の槽内取付具(2)は、両端が開放された円筒形状の筒体(21)と、その筒体(21)の一端外周に設けられた平板リング状のフランジ(25)とを一体に有するポリアセテート樹脂等からなる鍔付き円筒形状の硬質合成樹脂成形品をもって構成されている。
【0031】
筒体(21)は、外周面に雄ねじ(24)が刻設されており、その雄ねじ(24)及び上記雌ねじ(14)を介して、上記槽外取付具(1)における外筒体(12)の筒孔内に螺着できるよう構成されている。
【0032】
更にフランジ(25)の前面側には、複数の円柱形のビス受け用ボス(26)が周方向に沿って所定の間隔おきに一体に形成されている(図3参照)。
【0033】
また図4及び図5に示すように、フランジ(25)の後面側には、互いに平行な2本の突条リブ(20)が周方向に連続して一体に形成されている。各リブ(20)は、断面山型形状で先端側が先細に形成されている。
【0034】
槽内取付具(2)と浴槽(T)の内壁との間に介在される弾性パッキン(83)は、フランジ(25)の形状に対応する平板リング状の合成ゴム成形品をもって構成されている。
【0035】
更にフランジ(25)とパッキン(83)との間に介在される緩衝部材(84)は、フランジ(25)の形状に対応する平板リング状に形成されている。この緩衝部材(84)は、軟質性ないしは弾力性を有するポリエチレン樹脂等の軟質合成樹脂の成形品をもって構成されている。
【0036】
そして、上記槽外取付具(1)のフランジ(15)が、浴槽(T)の外壁面における取付孔(H)の周縁部に沿うように配置された状態で、槽内取付具(2)のフランジ(15)が、緩衝部材(84)及びパッキン(83)を介して浴槽内壁面における取付孔(H)の周縁部に圧接されるようにして、槽内取付具(2)の筒体(21)が取付孔(H)を通じてねじ込み固定される。これにより、両取付具(1)(2)のフランジ(15)(25)が、浴槽側壁における取付孔周縁部を挟持することにより、両取付具(1)(2)が浴槽側壁に貫通状態に固定される。
【0037】
この固定状態においては、図5に示すように、槽内取付具(2)におけるフランジ(25)の後面側に、突条リブ(20)が形成されているため、このリブ(20)によって緩衝部材(84)及びパッキン(83)が押圧変形されて、パッキン(83)とフランジ(25)との間のシール部の密着面積が増大するとともに、シール部における水分の浸入経路が複雑になり、シール部の水密性を向上させることができる。更にリブ形成部周辺において、パッキン(83)のフランジ側及び浴槽壁面側に対する密着力が高められ、浴槽壁面及びフランジ(25)間の水密性をより一層向上させることができる。
【0038】
また、槽内取付具(2)を槽外取付具(1)にねじ込み固定する際には、リブ(20)が緩衝部材(84)を介してパッキン(83)に圧接させるものであるため、パッキン(83)が引き裂かれる等の不具合を確実に防止することができる。すなわち、槽内取付具(2)のねじ込み操作時に、リブ(20)が直接パッキン(83)に接触する場合には、リブ(20)がパッキン(83)に対し高い圧力で接触した状態で摺動するため、リブ(20)によってパッキン(83)が擦り切れたり、切り裂かれたりする恐れがある。これに対し、本実施形態においては、リブ(20)を緩衝部材(84)を介してパッキン(83)に圧接させるものであるため、リブ(20)の圧接によるパッキン(83)への応力を緩衝部材(84)により分散して吸収できるので、応力の局部集中を回避でき、パッキン(83)の切り裂き(ねじ切れ)等を有効に防止することができる。
【0039】
図6ないし図12に示すように、装置本体(10)の流路形成部材(3)は、流路形成部材本体(4)と、蓋体(6)とを備えている。
【0040】
流路形成部材本体(4)は、硬質合成樹脂の一体成形品からなり、細長円筒形状の筒体(41)と、その一端に設けられた区画室部材(5)とを有している。
【0041】
筒体(41)は、上記槽外取付具(1)における内筒体(11)の内部に適合状態に挿入できる大きさに形成されている。
【0042】
区画室部材(5)は、筒体(41)の一端に設けられた円板状の底壁(51)と、その底壁(51)の前面側外周を囲うようにして設けられた外周壁(52)とを一体に有している。この区画室部材(5)は、径方向の大きさが上記槽内取付具(2)のフランジ(25)とほぼ同じ大きさに形成されている。
【0043】
図6及び図7に示すように、区画室部材(5)は、その前面側に複数の仕切壁(53)が一体に形成されて、区画室部材(5)の内部が3つの室(5a)〜(5c)に区分けされている。このうち第1区画室(5a)は、図7に示すように区画室部材(5)の略中心部から右上部にかけての領域に形成されるとともに、第2区画室(5b)は、略左上部の領域に形成されている。更に排出室(5c)は、中心部左寄りの部分から下方斜め右寄りの部分にかけての領域に形成されている。なお、図7においては、発明の理解を容易にするため、仕切壁(53)が形成されている部分にハッチングを施しておく。
【0044】
区画室部材(5)における第1及び第2区画室(5a)(5b)間は、互いに独立して非連通状態に形成されている。更に第1区画室(5a)と吐出室(5c)との間は第1吐出弁設置口(53a)を介して連通されるとともに、第2区画室(5b)と吐出室(5c)との間は第2吐出弁設置口(53b)を介して連通されている。
【0045】
なお、仕切壁(53)における吐出弁設置口(53a)(53b)の両側部には、後述する弁部材(7a)(7b)を支持するための凹段部(54)(54)がそれぞれ形成されている。
【0046】
区画室部材(5)の第1区画室(5a)内における底壁(51)には、筒体(41)の内部に連通する第1開口(51a)が形成されており、第1区画室(5a)が、後述するように第1流路(A)に連通される。更に第2区画室(5b)内における底壁(51)には、筒体(51)の外部に連通する第2開口(51b)が形成されており、第2区画室(5b)が、後述するように第2流路(B)に連通される。
【0047】
区画室部材(5)の外周壁(52)における下部の側方寄りの位置には、吐出口(55)が形成され、この吐出口(55)介して吐出室(5c)が外部に開放されている。
【0048】
また図7及び図8に示すように、区画室部材(5)における底壁(51)の後面側外周部には、上記槽内取付具(2)の複数のビス受け用ボス(26)にそれぞれ対応して、各ボス(26)を収納可能なボス受け凹部(57)が周方向に所定の間隔おきに形成されている。更に区画室部材(5)における底壁(51)の前面側外周部には、ボス受け凹部(57)のいずれか3つに対応して、軸心方向に延びる3つの筒状のビス挿通部(56)が周方向に等間隔おきに形成されている。
【0049】
図9及び図10に示すように、区画室部材(5)の外周壁(52)には、汎用工具係合孔(汎用工具係合部)としてのドライバー軸係合孔(100)が形成されている。この孔(100)は、外周壁(52)の外周面において開口し、区画室部材(5)の内部に向かって延びるように袋小路状に形成されるとともに、孔(100)の内部が区画室部材(5)の内部に対し水密状態に仕切られている。更にこのドライバー軸係合孔(100)は、その軸心が、流路形成部材(3)の軸心(X)に対し、直交するよう形成されている。
【0050】
このドライバー軸係合孔(100)は、汎用工具としてのスクリュードライバー(110)のドライバー軸(111)を挿入し得るよう構成されるとともに、その挿入状態においては、ドライバー軸(111)が係合孔(100)の内周面に係合することにより、ドライバー(110)を流路形成部材(3)の軸心(X)回り方向(周方向)に係合し得るよう構成されている。
【0051】
図11及び図12に示すように、蓋体(6)は、区画室部材(5)の前面開口部に対応する円板状の硬質合成樹脂成形品をもって構成されている。
【0052】
この蓋体(6)には、上記区画室部材(5)の第1吐出弁設置口(53a)に対応して、第1吸込弁設置口としての矩形状の第1吸込口(6a)が形成されるとともに、第2吐出弁設置口(53b)の近傍に対応して、第2吸込弁設置口としての矩形状の第2吸込口(6b)が形成されている。
【0053】
また、蓋体(6)の後面側には、第1及び第2吐出弁設置口(53a)(53b)に対応して、弁取付溝(61a)(61b)が形成されている。
【0054】
更に蓋体(6)の裏面側には、区画室部材(5)の3つのビス挿通部(56)に対応して、軸心方向に沿って延びる筒状の3つのビス挿通部(66)がそれぞれ形成されている。
【0055】
なお蓋体(6)の裏面側には、区画室部材(5)の仕切壁(53)の上端やビス挿通部(56)の上端を位置決め状態に収容するための溝(69)が形成されている。
【0056】
そして図1ないし図3に示すように、蓋体(6)及び流路形成部材本体(4)が、3本のタッピングビス(37)によって上記槽内取付具(2)に組付固定される。すなわち、流路形成部材本体(4)の筒体(41)が槽内取付具(2)の筒体(21)を通じて、槽外取付具(1)の内筒体(11)の筒孔に、上記オーリング(81)を介して適合状態に挿入されるとともに、流路形成部材本体(4)ボス受け凹部(57)内に槽内取付具(2)のボス(26)が挿入されることにより、流路形成部材本体(4)の3つのビス挿通部(56)が、槽内取付具(2)の複数のボス(26)のうち、対応するいずれか3つのボス(26)に適合される。更に蓋体(6)のビス挿通部(66)が流路形成部材本体(4)のビス挿通部(56)にそれぞれ適合状態に挿入されて、蓋体(6)が流路形成部材本体(4)の前面開口部に閉塞状に配置される。その状態で、蓋体(6)の前面側からビス(37)が、ビス挿通部(66)(56)に挿通されて、対応するボス(26)にねじ止め固定される。これにより、蓋体(6)が流路形成部材本体(4)に固定されて、流路形成部材(3)が組み付けられると同時に、その流路形成部材(3)が槽内取付具(2)に固定される。
【0057】
この固定状態においては、槽外取付具(1)の内筒体(11)の内部が、流路形成部材(3)の筒体(41)の内部が連通して、第1流路(A)として構成されるとともに、その第1流路(A)が第1開口(51a)を介して第1区画室(5a)に連通されている。更に槽外取付具(1)の内外筒体(11)(12)間が、槽内取付具(2)の筒体(21)及び流路形成部材(4)の筒体(41)間に連通して、第2流路(B)が構成されるとともに、その第2流路(B)が第2開口(51b)を介して第2区画室(5b)に連通されている。
【0058】
また、この組付状態においては、装置本体(10)の前部(流路形成部材の前部)、すなわち区画室部材(5)及び蓋体(6)が、浴槽内側面よりも内方に突出した状態に配置されている。
【0059】
なお図3に示すように、流路形成部材(3)における区画室部材(5)の後面側外周縁部と、槽内取付具(2)におけるフランジ(35)の外周縁部との間には、平板リング状の合成ゴム製パッキン(85)が介装されて、その間の水密が図られるよう構成されている。
【0060】
また流路形成部材(3)の区画室部材(5)及び蓋体(6)には、その外周面に、フィルター部材取付用の3つの鉤状溝(36)が形成されている。
【0061】
一方、図13ないし図16に示すように、流路形成部材(3)に設けられる弁部材(7a)(7b)は、合成ゴムの一体成形品をもって構成されている。この弁部材(7a)(7b)は、断面略L字型に形成されており、その一片(水平片)が矩形板状の吐出弁(71)として構成されるとともに、他片(垂直片)が矩形板状の吸込弁(72)として構成されている。更に吐出弁(71)及び吸込弁(72)との間の連結部には、略角棒状の弁支持軸(73)が設けられている。
【0062】
吐出弁(71)の上面側には、流路形成部材(3)の第1及び第2吐出弁設置口(53a)(53b)の内周縁部に対応して、リブ(71a)が形成されるとともに、吸込弁(72)の前面側には、蓋体(6)の第1及び第2吸込口(6a)(6b)の内周縁部に対応して、リブ(72a)が形成されている。
【0063】
この弁部材(7)(7)における弁支持軸(73)の前部が、流路形成部材(3)における蓋体裏面の弁取付溝(61a)(61b)に嵌着されるとともに、弁支持軸(73)の両側端部が、流路形成部材(3)における第1及び第2吐出弁設置口(53a)(53b)両側の凹段部(54)(54)に嵌着される(図7参照)。これにより図13に示すように、自然状態においては、弁部材(7a)(7b)の吐出弁(71)(71)が、吐出弁設置口(53a)(53a)を吐出室(5c)側から閉塞するように配置されるとともに、吸込弁(72)(72)が、吸込口(6a)(6b)を区画室(5a)(5b)側から閉塞するように配置される。このとき、吐出弁(71)(71)は、その外周縁部が吐出室(5c)側における吐出弁設置口(53a)(53b)の周縁部(弁座部)に弾性力により密着しており、吐出室(5c)側から区画室(5a)(5b)側に温水が流れ込もうとした際には、その水圧によって、吐出弁(71)(71)の吐出弁設置口(53a)(53b)に対する閉塞状態が維持されて、その方向の温水の流通が規制されるとともに、逆に、区画室(5a)(5b)側から吐出室(5c)側に温水が流れ込もうとした際には、その水圧によって、吐出弁(71)(71)が吐出室(5c)側に弾性変形することにより、吐出弁設置口(53a)(53b)が開放されて、その方向の温水の流通が許容されるよう構成されている。従って弁部材(7a)(7b)の吐出弁(71)(71)は、吐出室(5c)に対し、温水の排出方向の流通は許容し、かつ吸込方向の流通は阻止する逆止弁として機能する。
【0064】
更に弁部材(7a)(7b)の吸込弁(72)(72)は、その外周縁部が区画室(5a)(5b)側における吸込口(6a)(6b)の周縁部(弁座部)に弾性力により密着しており、区画室(5a)(5b)側から外部に温水が流れ出そうとした際には、その水圧によって、吸込弁(72)(72)の吸込口(6a)(6b)に対する閉塞状態が維持されて、その方向の温水の流通が規制されるとともに、逆に、外部から区画室(5a)(5b)側に温水が流れ込もうとした際には、その水圧によって、吸込弁(72)(72)が内側に弾性変形することにより、吸込口(6a)(6b)が開放されて、その方向の温水の流通が許容されるよう構成されている。従って、弁部材(7a)(7b)の吸込弁(72)(72)は、区画室(5a)(5b)に対し、温水の吸込方向の流通は許容し、かつ吐出方向の流通は阻止する逆止弁として機能する。
【0065】
なお、図13ないし図16に示すように、弁部材(7)における弁支持軸(73)の前面側には、嵌合溝(73a)が形成されるとともに、その溝(73a)に対応して蓋体(6)の裏面側には、嵌合突起(63)が形成されており、この嵌合突起(63)が嵌合溝(73a)に嵌着されている。更に弁部材(7a)(7b)における吸込弁(72)の基端部には、嵌合孔(72b)が形成されるとともに、その孔(72b)に対応して、蓋体(6)の裏面側には、嵌合突起(62)が形成されており、この嵌合突起(62)が嵌合孔(72b)に嵌着されている。
【0066】
一方、図1ないし図3、図17に示すように、フィルター部材(9)は、流路形成部材(3)における蓋体(6)の前面から区画室部材(5)の外周側面を覆うように配置されるもので、外装体(91)と、内枠体(92)と、フィルター本体(93)とを備えている。
【0067】
外装体(91)は、装置本体(3)の前面側を覆う円板状の前面カバーと、その前面カバーの周縁部に沿って設けられ、かつ装置本体前部(区画室部材)の外周側面を覆う側面カバーとを有するステンレス等の金属のプレス成形品をもって構成されている。
【0068】
フィルター本体(93)は、略円板形状の金属製メッシュシートからなり、外装体(91)の内部における前面カバー裏面側に配置される。
【0069】
内枠体(92)は、略円板形状を有し、外装体(91)の内部における前面カバーの裏面側にフィルター本体(93)を介して嵌着固定され、これにより、フィルター本体(93)が、外装体(91)と内枠体(92)とに挟持される。
【0070】
また、外装体(91)の前面カバーには、前後に貫通する複数の吸込用開口(95)が放射状に形成されている。
【0071】
更に図2及び図3に示すように外装体(93)の側面カバーには、流路形成部材(3)の吐出口(55)に対応して、吐出用開口(97)が形成されている。
【0072】
また外装体(91)における内周側面には、流路形成部材(3)の外周面に設けられた3つの鉤状溝(36)に対応して、3つの係合突起(96)が内方突出状に形成されている。そして、この係合突起(96)が鉤状溝(36)に挿入係合されることにより、フィルター部材(9)が、流路形成部材(3)に着脱自在に取り付けられている。
【0073】
なお、この取付状態においては、フィルター部材(9)の吐出用開口(97)が、流路形成部材(3)の吐出口(55)に適合して配置される。
【0074】
本実施形態において、温水口装置(P)の浴槽(T)への組付手順は特に限定されるものではないが、例えば、以下のようにして組み付けられる。
【0075】
まず始めに、流路形成部材(3)を槽内取付具(2)に取り付けて、装置本体(10)を組み付けておく。すなわち、上記したように流路形成部材(3)における蓋体(6)に弁部材(7a)(7b)をセットし、その弁付き蓋体(6)を流路形成部材本体(4)における区画室部材(5)の前面開口部に配置する。その状態で、ビス(37)を、蓋体(6)の前面側からビス挿通部(66)(56)に挿通して、ボス(26)にねじ込んで固定する。
【0076】
なお、弁部材(7a)(7b)は、搬送時や組付時等における脱落を防止するため、予め蓋体(6)や流路形成部材本体(4)に接着剤等を用いて接着固定しておいても良い。
【0077】
続いて、浴槽(T)の側壁外面側における取付孔(H)に対応する位置に、槽外取付金具(1)を配置する一方、上記の装置本体(10)の槽内取付具(2)におけるフランジ(15)の後面側に緩衝部材(84)及びパッキン(83)を配置しておいて、その状態で装置本体(10)における槽内取付具(2)の筒体(21)を、浴槽(T)の内側から取付孔(H)に挿通して槽外取付具(1)の外筒体(12)にねじ込んで固定する。
【0078】
このねじ込み作業を行う際には、まず手作業で装置本体(10)側の筒体(21)を槽外取付具(1)の外筒体(12)に軽くねじ込んで仮止めする。その後、図10に示すように、スクリュードライバー(110)のドライバー軸(111)を装置本体(11)におけるドライバー軸係合孔(100)に挿入して係合し、そのドライバー(110)の把持部(112)を手で持って、ドライバー(110)を装置本体(10)と共に軸心回り回転させる。このようにドライバー(110)を介して装置本体(10)を回転操作することにより、装置本体(10)に十分な回転モーメントを得ることができ、装置本体(10)の筒体(21)を槽外取付具(1)の外筒体(12)に強固にねじ込んで固定することができる。
【0079】
続いて、流路形成部材(3)にフィルター部材(9)を被せて取り付けることにより、温水口装置(P)の浴槽(T)への組付作業が完了する。
【0080】
なお、温水口装置(P)の組付手順は、上記のものに限られず、例えば槽外取付具(1)と槽内取付具(2)とを浴槽壁部に組み付けた後、両取付具(1)(2)に弁付きの流路形成部材(3)をビス止め固定するようにしても良い。
【0081】
こうして浴槽(T)に組み付けられた温水口装置(P)においては、槽外取付具(1)の外管接続部(1a)(1b)に、室外給湯機からの配管が連結されて、浴槽システムが形成される。
【0082】
この浴槽システムにおいて、浴槽(T)内に温水を供給して貯湯する場合には、2つの外管接続部(1a)(1b)の双方に温水を供給して、2つの流路(A)(B)の両方が浴槽(T)に温水を供給する吐出流路として利用される。すなわち温水が流路(A)(B)を通って、流路形成部材(3)の2つの区画室(5a)(5b)内に流入された際には、その水圧によって、弁部材(7)(7)の吐出弁(71)(71)が開放されて、温水が区画室(5a)(5b)内から吐出室(5c)に流入して合流し、流路形成部材(3)の吐出口(55)及びフィルター開口(97)を通って、浴槽(T)の内部に供給される。
【0083】
なお、この貯湯処理によって、浴槽(T)内の湯面が温水口装置(P)よりも上方に達したとしても、温水の逆流は防止される。すなわち、温水が流路形成部材(3)の区画室(5a)(5b)を流通する際には、その水圧によって、弁部材(7)(7)の吸込弁(72)(72)は、吸込口(6a)(6b)に密着して閉じられるため、浴槽内の温水が、吸込口(6a)(6b)を流通するのが阻止され、温水の温水口装置(P)内への逆流が防止される。
【0084】
一方、浴槽(T)内の温水を再加熱するような追い焚き処理を行う場合には、温水口装置(P)の2つの流路(A)のうち、室外給湯機の往き管に接続された側の流路が吐出流路として機能し、戻り管に接続された側の流路が吸込流路として機能して、いわゆる強制循環が行われる。例えば第1流路(A)が吐出流路、第2流路(B)が吸込流路となるように配管接続された場合には、給湯機から供給される温水は、第1流路(A)を通って第1区画室(5a)に流入され、吐出弁(71)を開いて、排出室(5c)に流入されて、吐出口(55)及びフィルター開口(97)を介して浴槽(T)内に供給される。
【0085】
また吸込流路においては、室外給湯機の戻り管及び第2流路(B)の負圧に伴い、第2区画室(5b)が負圧となる。このため、浴槽(T)内の水圧によって、流路形成部材(3)における第2吸込口(6b)の吸込弁(72)が開放して、浴槽(T)内の温水がフィルター部材(9)を介して第2吸込口(6b)を通って第2区画室(5b)内に流入されて、更に第2流路(B)を通って室外給湯機に戻される。
【0086】
なお、温水口装置(P)の2の流路(A)(B)が、室外給湯機の往き管及び戻り管に対し、上記とは逆に接続した場合には、各流路(A)(B)を温水が上記とは逆方向に流通して、強制循環されるものである。
【0087】
こうして浴槽(T)内の温水が循環されて、追い焚き処理が行われる。
【0088】
以上のように、本実施形態の浴槽用温水口装置(P)によれば、装置本体(10)の外周壁(52)に、ドライバー軸係合孔(100)を形成するものであるため、装置本体(10)を槽外取付具(1)にねじ込む際に、ドライバー(100)の軸(111)を装置本体(10)の係合孔(100)に挿入係合し、その状態でドライバー(100)の把持部(112)を手で持って、ドライバー(110)と共に装置本体(10)を回転させることにより、装置本体(10)を強い回転トルクで槽外取付具(1)にねじ込み固定することができ、装置本体(10)を強固に確実に組み付けることができる。
【0089】
しかも、装置本体(10)をねじ込み固定する際に、汎用工具としてのスクリュードライバー(110)を用いるものであるため、専用の工具を用いる必要がなく、その分、準備や使用方法等に余分な労力を費やすことがなく、組付作業を効率良く簡単に行うことができる。
【0090】
特に本実施形態においては、装置本体(10)における流路形成部材(3)にドライバー軸係合孔(100)を形成するものであるため、流路形成部材(3)を槽内取付具(2)にビス止め固定して、装置本体(10)を組み立てた後、その装置本体(10)を槽外取付具(1)にねじ込むことができるので、例えば従来のように、槽内取付具(2)を槽外取付具(1)にねじ込み固定した後、流路形成部材(3)を槽内取付具(2)にビス止め固定する場合と比較して、組付作業をより一層効率良く行うことができる。すなわち従来のように、浴槽壁面に組み付けられた槽内取付具(2)に、流路形成部材(3)をビス止めする場合には、そのビス止め作業を浴槽内における狭い作業スペース内で行う必要があるため、作業者にとって多大な負担を強いられて、組付作業を効率良く行うことが困難である。
【0091】
これに対し、本実施形態のように、流路形成部材(3)を槽内取付具(2)にビス止めして装置本体(10)を組み立てた後、その装置本体(10)を槽外取付具(1)にねじ込む場合には、流路形成部材(3)の槽内取付具(2)へのビス止め作業を、組付現場以外の適当な場所で行うことができるので、作業者は余裕を持って正確に流路形成部材(3)を槽内取付具(2)にビス止めすることができ、ひいては温水口装置(P)の組付作業を、より一層効率良く簡単に行うことができる。更に本実施形態において、現場到着前にあらかじめ流路形成部材(3)を槽内取付具(2)にビス止めして装置本体(10)を組み付けておく場合には、装置本体(10)の組付を現場で行う必要がなく、現場での組付作業を更に効率良く行うことができる。
【0092】
なお、従来の温水口装置において、流路形成部材を槽内取付具にビス止め装置本体を組み立てた後、その装置本体を浴槽壁部に組み付けることは実質的に不可能である。すなわち、従来においては、単独状態の槽内取付具を、ねじ込み操作用の専用工具を用いて、槽外取付具にねじ込むように構成しているため、槽内取付具に流路形成部材を組み付けた状態では、上記専用工具を用いることができず、槽内取付具を槽外取付具にねじ込むことができなくなってしまう。従って、従来の温水口装置では、上記したように、槽内取付具(2)を浴槽壁部に組み付けた後、その槽内取付具(2)に流路形成部材(3)をビス止めする必要があり、槽内取付具(2)に流路形成部材(3)をビス止めする前に、槽内取付具(2)を槽外取付具(1)にねじ込み固定しておく必要がある。
【0093】
一方、本実施形態の温水口装置(P)においては、吐出弁(71)及び吸込弁(72)を一体に有する弁部材(7a)(7b)を用いるものであるため、部品点数を削減できて、構造の簡素化を図ることができ、コストの削減を図ることができる。
【0094】
更に弁部材(7a)(7b)を装置本体(10)に組み付けるだけで、第1及び第2吐出弁(71)、第1及び第2吸込弁(72)の4つの弁を組み付けることができ、組付工程数を削減できて、組付作業を容易に行うことができ、より一層コストの削減を図ることができる。
【0095】
しかも、弁部材(7a)(7b)における吐出弁(71)及び吸込弁(72)間の連結部に弁支持軸(73)を形成して、その軸(73)を装置本体(10)に組み付けるものであるため、弁部材(7a)(7b)を安定状態に組み付けることができ、吐出弁(71)及び吸込弁(72)に高い動作信頼性を得ることができて、品質を向上させることができる。
【0096】
また実施形態においては、装置本体(10)の前面から浴槽内に温水を吐出して、周側面から浴槽内の温水を吸い込むようにした側方吐出/前面吸込方式を採用するものであるため、例えば貯湯時には、温水が浴槽内面に沿って滑らかに供給することができ、吐出される温水の飛散による音の発生を防止でき、静かに湯はりを行える。更に、追い焚き時には、吐出される温水が浴槽内面に沿ってその内周面全域に温水が行き渡るとともに、浴槽中央部の温水が装置内に吸い込まれることにより、浴槽内を温水が大きく安定して循環し、例えば吐出された温水が、循環せずに装置内に吸い込まれるような不具合(ショートサイクル)を有効に防止することができ、追い焚き処理を効率良くスムーズに行うことができる。
【0097】
また本実施形態においては、装置本体(10)に排出室(5c)を形成して、2つの区画室(5a)(5b)から流出される温水を、一旦、吐出室(5c)に導入してから、1つの吐出口(55)を介して浴槽内に吐出するものであるため、例えば2つの区画室から別々に温水を槽内に吐出する場合と比較して、温水吐出時の流速や方向性等を制御し易くなり、温水を効率良くスムーズに吐出することができる。
【0098】
更に貯湯時等において、第1及び第2流路(A)(B)から異なる温度の温水が供給される場合、この温度差のある温水が、吐出室(5c)内で十分混合されて適温状態となってから、浴槽内に吐出されるため、上記の温水循環作用も相まって、槽内の水温分布にばらつきが生じるのを有効に防止することができ、当初から、快適な入浴環境を得ることができる。
【0099】
もっとも、本発明においては、吐出室を必ずしも設ける必要はなく、各区画室(5a)(5b)から直接、浴槽内部に温水を吐出するようにしても良い。この場合、言うまでもなく、上記実施形態における吐出弁設置口(53a)(53b)に想到する部分が、吐出口として構成されることになる。
【0100】
また、本実施形態の温水口装置(P)によれば、槽内取付具(2)のフランジ後面を、緩衝部材(84)及びパッキン(83)を介して浴槽内壁面に密着するに際して、フランジ(25)の後面側に、突条リブ(20)を形成しているため、このリブ(20)によって緩衝部材(84)及びパッキン(83)が押圧変形されて、パッキン(83)とフランジ(25)との間の密着面積が増大するとともに、その間の水分浸入経路が複雑になり、水密性を向上させることができる。その上更に、リブ形成部周辺において、パッキン(83)のフランジ(25)側及び浴槽壁面側に対する密着力が高められ、浴槽壁面及びフランジ(25)間の水密性を一層向上させることができる。
【0101】
また本実施形態においては、突条リブ(20)を2本設けるものであるため、フランジ(25)及び浴槽壁面間におけるシール部分の密着面積を、より一層増大できるとともに、水分浸入経路を、より複雑に形成することができ、より一層水密性を向上させることができる。
【0102】
また本実施形態においては、槽内取付具(2)のフランジ(25)を、緩衝部材(84)を介してパッキン(83)に圧接するものであるため、槽内取付具(2)を槽外取付具(1)にねじ込み固定する際に、パッキン(83)が切り裂かれる等の不具合を確実に防止することができる。
【0103】
なお、上記実施形態においては、汎用工具係合孔としてドライバー軸係合孔(100)を、流路形成部材(3)における前部外周壁(52)に形成するようにしているが、本発明においては、汎用工具係合孔を、流路形成部材(3)の前部外表面のいずれの位置に形成するようにしても良い。例えば図18に示すように、ドライバー軸係合孔(100)を流路形成部材(3)の蓋体(6)に設けるようにしても良い。この場合、ドライバー軸係合孔(100)の軸心を、流路形成部材(3)の軸心に対し傾斜させることができるため、係合孔(100)にドライバー(110)を差し込んだ際に、ドライバー(110)の把持部(112)が浴槽内壁面から十分に間隔をおいた状態で傾斜して配置される。従って、ドライバー(110)の把持部周辺に十分なスペースを確保することができ、例えば把持部(112)を手で持って、ドライバー(110)及び流路形成部材(装置本体)をねじ込み操作する際に、作業者の手が浴槽内壁面に干渉するような不具合を有効に防止することができ、なお一層、効率良くスムーズに装置本体(10)のねじ込み作業を行うことができる。
【0104】
また、上記実施形態においては、吐出弁と吸込弁とを一体に形成する場合を例に挙げて説明したが、本発明はそれだけに限られず、2つの吐出弁を一体に形成したり、あるいは2つの吸込弁を一体に形成するようにしても良く、要は、4つの弁のうち、2つ以上の弁が一体に形成されてさえいれば良い。
【0105】
また上記実施形態においては、槽内取付具のフランジに設けられる突条部(突条リブ)を2本設ける場合について説明したが、本発明において、突条部は1本だけ設けても良いし、3本以上設けるようにしても良い。
【0106】
更に突条部は、周方向に沿って必ずしも連続させる必要はなく、断続的に設けるようにしても良い。
【0107】
また上記実施形態においては、吐出口を1つ設ける場合について説明したが、本発明は、2つ以上の吐出口を有する温水口装置にも適用することができる。
【0108】
更に上記実施形態においては、本発明を無極性タイプの温水口装置に適用した場合を例に挙げて説明したが、本発明は、給湯機につながる往き管及び戻り管が予め設定されている温水口装置にも適用することができる。
【0109】
また上記実施形態においては、フィルター部材の外周側面から温水を吐出するように構成しているが、本発明は、フィルター部材と浴槽内壁面との隙間から温水を吐出するように構成しても良い。
【0110】
更に上記実施形態においては、強制循環タイプの追い焚き可能な装置を例に挙げて説明したが、本発明は、湯はり等の貯湯処理のみを行う温水口装置にも適用することができる。
【0111】
【発明の効果】
以上のように、本発明の浴槽用温水口装置によれば、装置本体の前部に汎用工具係合孔を形成するものであるため、装置本体を浴槽壁部の取付孔を通じて槽外取付具にねじ込む際に、装置本体の汎用工具係合孔にスクリュードライバー等の汎用工具を挿入係合し、その汎用工具を利用して装置本体を槽外取付具にねじ込むことにより、専用の工具を用いずに、装置本体を強固に確実に組み付けることができる。従って、専用工具の準備や使用方法等に余分な労力を費やす必要がなく、組付作業を効率良く簡単に行うことができるという効果がある。
【図面の簡単な説明】
【図1】この発明の実施形態である浴槽用温水口装置を示す断面図である。
【図2】実施形態の温水口装置を分解して示す断面図である。
【図3】実施形態の温水口装置を分解して示す斜視図である。
【図4】実施形態の温水口装置における槽内取付具を裏面側から見た状態で示す斜視図である。
【図5】実施形態の温水口装置における槽内取付具と浴槽内面との間のシール部を拡大して示す断面図である。
【図6】実施形態の温水口装置における流路形成部材を分解して示す斜視図である。
【図7】実施形態における流路形成部材の本体を示す正面図である。
【図8】実施形態の流路形成部材本体を示す背面図である。
【図9】実施形態の流路形成部材本体を示す側面図
【図10】実施形態における流路形成部材のねじ込み操作を説明するための斜視図である。
【図11】実施形態における流路形成部材の蓋体を示す正面図である。
【図12】実施形態の流路形成部材の蓋体を示す背面図である。
【図13】実施形態の温水口装置における弁部材周辺を拡大して示す断面図である。
【図14】実施形態の温水口装置における弁部材を示す断面図である。
【図15】実施形態の弁部材を示す正面図である。
【図16】実施形態の弁部材を示す下面図である。
【図17】実施形態の温水口装置を示す正面図である。
【図18】この発明の変形例である温水口装置の流路形成部材を示す斜視図である。
【符号の説明】
1…槽外取付具
2…槽内取付具
3…流路形成部材
10…装置本体
100…ドライバー軸係合孔(汎用工具係合孔、汎用工具係合部)
110…スクリュードライバー(汎用工具)
111…ドライバー軸
112…把持部
P…浴槽用温水口装置
T…浴槽
H…取付孔
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot water outlet device for a bathtub that is provided on a bathtub wall and discharges and sucks hot water into a bathtub.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a bathtub system in which a bathtub and a water heater are connected by piping to perform hot water storage processing and reheating processing is well known. In this bathtub system, a hot water outlet device is attached in a penetrating manner to the side wall of the bathtub, and this device and an outdoor water heater are connected by piping. And at the time of hot water storage, hot water supplied from the water heater is introduced into the bathtub through the hot water port device, and at the time of reheating, the hot water in the tank is sucked from the hot water port device and sent to the water heater, where it is reheated. After that, it is returned to the tank.
[0003]
As a hot water outlet apparatus used for such a bathtub system, for example, as shown in Patent Document 1 below, a well-equipped apparatus having a tank outer attachment attached to the bathtub outer surface side and an apparatus main body attached from the bathtub inner surface side is well known. It is. Furthermore, the apparatus main body is provided with a tubular in-tank fitting attached from the inner surface of the bathtub, a flow path forming member fixed to the flange of the in-tank fitting, and the like. And when assembling this hot water outlet apparatus to the bathtub, for example, the tank outer fixture is arranged at a position corresponding to the mounting hole on the side wall outer surface side of the bathtub, and the cylinder of the tank inner fixture is attached to the bathtub. Insert through the mounting hole from the inside and screw it into the fixture outside the tank. Thereafter, the flow path forming member is fixed to the in-tank fixture by screws, and the filter member is mounted so as to cover the exposed portion (front portion) of the flow path forming member.
[0004]
[Patent Document 1]
JP 10-47783 A
[0005]
[Problems to be solved by the invention]
By the way, in the conventional hot-water port apparatus for bathtubs as described above, when the in-tank fitting is screwed and fixed to the out-of-tank fitting, a dedicated screwing operation jig is provided in the tubular hole of the in-tank fitting. By inserting and engaging, the in-tank fixture is screwed and fixed to the out-of-tank fixture via the jig. As described above, since a dedicated screwing operation jig is used, extra labor is spent on the preparation and use of the dedicated jig, and there is a problem that the assembling work is difficult.
[0006]
Furthermore, in the conventional hot water outlet apparatus for bathtubs, since the in-tank fitting is assembled to the bathtub wall surface, the channel forming member is fixed to the in-tank fitting using a plurality of screws. It is necessary to perform the screwing operation of the forming member in a limited narrow space around the mounting hole in the bathtub. For this reason, this screwing operation has to be performed in a cramped state, resulting in a great burden on the operator and a further difficulty in assembly work.
[0007]
An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a hot water outlet device for a bathtub that can be assembled easily and reliably without requiring a dedicated tool or the like.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the first invention is a hot water port apparatus for a bathtub provided in a penetrating state in an attachment hole of a bathtub wall portion, and is provided with a tank external fixture arranged on the bathtub outer surface side of the attachment hole, A device body that is screwed and fixed to the outside fixture through a mounting hole in a mode in which the front portion is disposed on the inner surface side of the bathtub, and a general-purpose tool is inserted into the outer surface of the front portion of the device body, and In the inserted state, the gist is that provided with a general-purpose tool engagement hole for engaging the general-purpose tool in the direction around the axis of the apparatus main body.
[0009]
In the hot water outlet apparatus for bathtubs of this invention, since a general-purpose tool engagement hole is formed in the front part of the apparatus main body, when screwing the apparatus main body into the external fixture through the attachment hole of the bathtub wall, By inserting and engaging a general-purpose tool such as a screwdriver into the general-purpose tool engagement hole of the main unit, and screwing the main unit into the outside-mounting fixture using the general-purpose tool, the main unit can be mounted without using a dedicated tool. It can be firmly and securely assembled. Therefore, it is not necessary to spend extra labor for the preparation and usage of the dedicated tool, and the assembly work can be performed efficiently and easily.
[0010]
In the present invention, the apparatus main body includes an in-tank fixture that is screwed and fixed to the external fixture through an attachment hole, and a flow path forming member that is attached to the front side of the in-tank fixture, A device in which the front portion of the flow path forming member is configured as the front portion of the apparatus main body can be suitably employed.
[0011]
In this case, after assembling the apparatus main body by attaching the flow path forming member to the in-tank fixture, the apparatus main body can be screwed and fixed to the external fixture, so that, for example, After the inner fixture is screwed and fixed to the outer fixture, the assembly work can be performed more efficiently than the case where the flow path forming member is attached to the inner fixture. That is, when attaching the flow path forming member to the in-tank fixture attached to the bathtub wall surface as in the prior art, it is necessary to perform the installation work in a narrow space in the bathtub, which places a great burden on the operator. Therefore, it is difficult to perform the assembly work efficiently. On the other hand, as in the present invention, after assembling the apparatus main body by attaching the flow path forming member to the in-tank fixture, when screwing the apparatus main body into the outer tank fixture, the assembly work of the apparatus main body, It can be performed with a margin at an appropriate place other than the site (in the bathtub), and the assembly work can be performed efficiently and smoothly.
[0012]
In the present invention, it is preferable to employ a configuration in which an outer peripheral wall is provided in the front portion of the apparatus main body along the axial center direction, and the general-purpose tool engagement hole is formed in the outer peripheral wall. it can.
[0013]
Furthermore, in the present invention, an outer peripheral wall is provided in the front portion of the apparatus main body along the direction around the axis, and a lid is provided on the front side of the outer peripheral wall. A configuration in which a joint hole is formed can be suitably employed.
[0014]
In the present invention, it is preferable that the general-purpose tool engagement hole is configured to have a driver shaft engagement hole capable of engaging a driver shaft of a screw driver.
[0015]
That is, in this case, the hot water outlet device can be reliably assembled using a general-purpose tool such as a screwdriver.
[0016]
Further, in the present invention, in the state where the screwdriver driver shaft is inserted and engaged with the screwdriver shaft engaging hole, the screwdriver grip is arranged so as to be spaced apart from the inner surface of the bathtub. It is desirable to adopt.
[0017]
That is, in this case, since the grip portion of the driver is arranged away from the inner surface of the bathtub, for example, when the driver and the apparatus main body are screwed in by holding the driver grip portion by hand, Problems such as interference with the inner wall surface can be effectively prevented, and the apparatus main body can be screwed more efficiently and smoothly.
[0018]
In the present invention, it is even more preferable that the general-purpose tool engagement hole adopts a configuration in which the axis is set to be inclined with respect to the axis of the apparatus main body.
[0019]
That is, when working with this configuration, it is possible to ensure a working space for rotating operation between the general-purpose tool and the inner wall surface of the bathtub.
[0020]
On the other hand, in order to achieve the above object, the second invention is a hot water port apparatus for a bathtub provided in a penetrating manner in an attachment hole of a bathtub wall portion, and is installed outside the tank arranged on the outer surface side of the attachment hole. And a device main body screwed and fixed to the outer tank fixture through a mounting hole in a mode in which the front portion is disposed on the inner surface side of the bathtub, and a general-purpose tool is provided on the outer surface of the front portion of the device main body. The gist is provided with a general-purpose tool engaging portion for engaging in the direction around the axis of the main body.
[0021]
In the second invention as well, as in the first invention, a general-purpose tool such as a screwdriver is engaged with the general-purpose tool engaging portion, and the apparatus main body is screwed into the external fixture using the general-purpose tool. The apparatus main body can be firmly and securely assembled without using a dedicated tool.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 to FIG. 3 are views showing a bathtub hot water outlet device (P) according to an embodiment of the present invention. As shown in these drawings, the hot water outlet device (P) of this embodiment is attached to a mounting hole (H) provided in the side wall of the bathtub (T), and is provided outside the bathtub (T). Hot water supplied from the provided hot water heater can be supplied into the bathtub (T) to perform hot water storage processing such as hot water. Further, the hot water in the bathtub (T) can be sucked and sent to the hot water heater, where it is reheated, and the hot water at the high temperature is returned to the bathtub (T) to perform forced circulation processing such as reheating.
[0023]
In addition, this warm water apparatus (P) is connected to either the forward pipe or the return pipe connected to the water heater to the two outer pipe connections (1a) (1b) provided in the apparatus (P). It is a so-called nonpolar type that can be used.
[0024]
As shown in FIG. 1 thru | or FIG. 3, the warm water mouth apparatus (P) of this embodiment is a basic component which consists of a tank outer attachment (1), an apparatus main body (10), and a filter member (9). The apparatus main body (10) further includes an in-tank fixture (2) and a flow path forming member (3).
[0025]
The outer tank fixture (1) includes a cylindrical outer cylinder (12) having one end (front side) opened and the other end (rear side) closed, and the outer cylinder (12). A cylindrical inner cylinder (11) disposed coaxially inside, a flat ring-shaped flange (15) provided on one end outer periphery of the outer cylinder (12), and an outer cylinder (12) It is comprised with the metal product which has the tubular 1st and 2nd outer pipe | tube connection part (1a) (1b) integrally provided in the other end obstruction | occlusion wall, and extends to the other end side along an axial center direction.
The inner space of the inner cylinder (11) is configured as a part of the first flow path (A), and the space between the inner cylinder (11) and the outer cylinder (12) is a second flow. The first outer pipe connecting portion (1a) is communicated with the first flow path (A), and the second outer pipe connecting portion (1b) is the second flow. It is connected to the road (B).
[0026]
Furthermore, the internal thread (14) is engraved on the inner peripheral surface of the one end side of the outer cylinder (11).
[0027]
Further, an O-ring (81) made of synthetic rubber is accommodated in the front end portion of the inner peripheral surface of the inner cylinder (11).
[0028]
The ring-shaped synthetic rubber covering packing (82) provided on the flange (15) of the outside-mounting fixture (1) has a fitting groove (82a) formed along the inner peripheral surface thereof. And this covering packing (82) is tightly fixed in a state where the outer peripheral surface of the flange (15) is almost entirely covered by fitting the fitting groove (82a) into the flange (15).
[0029]
Further, the front surface side of the covering packing (82) is formed in a thick plate shape and is configured as a packing body (82b), and a plurality of continuous contact in the circumferential direction is provided on the front and back surfaces of the packing body (82b). The projecting rib (82c) is integrally formed.
[0030]
As shown in FIGS. 1 to 4, the in-tank fitting (2) of the apparatus main body (10) has a cylindrical cylinder (21) whose both ends are open and an outer periphery of one end of the cylinder (21). It is constituted by a cylindrical rigid synthetic resin product with a flange made of a polyacetate resin or the like integrally having a flat plate ring-shaped flange (25) provided.
[0031]
The cylindrical body (21) has a male screw (24) engraved on the outer peripheral surface thereof, and the outer cylindrical body (12) in the outside-mounting fixture (1) via the male screw (24) and the female screw (14). ) In the cylindrical hole.
[0032]
Further, a plurality of cylindrical screw receiving bosses (26) are integrally formed at predetermined intervals along the circumferential direction on the front side of the flange (25) (see FIG. 3).
[0033]
Moreover, as shown in FIG.4 and FIG.5, the two rib ribs (20) parallel to each other are integrally formed in the circumferential direction at the rear surface side of the flange (25). Each rib (20) has a mountain-shaped cross section and is tapered on the tip side.
[0034]
The elastic packing (83) interposed between the in-tank fixture (2) and the inner wall of the bathtub (T) is configured with a flat ring-shaped synthetic rubber molded product corresponding to the shape of the flange (25). .
[0035]
Further, the buffer member (84) interposed between the flange (25) and the packing (83) is formed in a flat ring shape corresponding to the shape of the flange (25). This buffer member (84) is formed of a molded product of a soft synthetic resin such as a polyethylene resin having softness or elasticity.
[0036]
And in the state arrange | positioned so that the flange (15) of the said tank outer attachment tool (1) may be along the peripheral part of the attachment hole (H) in the outer wall surface of a bathtub (T), (2) The cylinder (15) of the in-tank fitting (2) is configured such that the flange (15) is pressed against the peripheral edge of the mounting hole (H) on the inner wall surface of the bathtub via the buffer member (84) and the packing (83). (21) is screwed and fixed through the mounting hole (H). As a result, the flanges (15) and (25) of both fixtures (1) and (2) sandwich the peripheral edge of the mounting hole in the bathtub side wall, so that both fixtures (1) and (2) penetrate the bathtub side wall. Fixed to.
[0037]
In this fixed state, as shown in FIG. 5, the rib rib (20) is formed on the rear surface side of the flange (25) of the in-tank fitting (2). When the member (84) and the packing (83) are pressed and deformed, the contact area of the seal portion between the packing (83) and the flange (25) increases, and the moisture intrusion path in the seal portion becomes complicated. The water tightness of the seal part can be improved. Further, in the vicinity of the rib forming portion, the adhesion of the packing (83) to the flange side and the bathtub wall surface side is enhanced, and the water tightness between the bathtub wall surface and the flange (25) can be further improved.
[0038]
Further, when the in-tank fixture (2) is screwed and fixed to the out-of-tank fixture (1), the rib (20) is pressed against the packing (83) via the buffer member (84). Problems such as tearing of the packing (83) can be reliably prevented. That is, when the rib (20) is in direct contact with the packing (83) during the screwing operation of the in-tank fitting (2), the sliding is performed with the rib (20) in contact with the packing (83) at a high pressure. Therefore, the rib (20) may cause the packing (83) to be frayed or torn. On the other hand, in the present embodiment, the rib (20) is pressed against the packing (83) via the buffer member (84), and therefore stress on the packing (83) due to the pressure contact of the rib (20) is applied. Since it can be dispersed and absorbed by the buffer member (84), local concentration of stress can be avoided, and tearing (thread breakage) and the like of the packing (83) can be effectively prevented.
[0039]
As shown in FIGS. 6 to 12, the flow path forming member (3) of the apparatus main body (10) includes a flow path forming member main body (4) and a lid (6).
[0040]
The flow path forming member main body (4) is made of an integrally molded product of hard synthetic resin, and has an elongated cylindrical cylindrical body (41) and a compartment member (5) provided at one end thereof.
[0041]
The cylindrical body (41) is formed in a size that can be inserted into the inner cylindrical body (11) of the above-described tank external fixture (1) in an adapted state.
[0042]
The partition chamber member (5) includes a disc-shaped bottom wall (51) provided at one end of the cylindrical body (41) and an outer peripheral wall provided so as to surround the outer periphery on the front side of the bottom wall (51). (52) are integrated. The compartment member (5) has a radial size that is substantially the same as the flange (25) of the in-tank fixture (2).
[0043]
As shown in FIGS. 6 and 7, the partition chamber member (5) has a plurality of partition walls (53) integrally formed on the front side thereof, and the interior of the partition chamber member (5) has three chambers (5a). ) To (5c). Among these, the first compartment (5a) is formed in a region from the substantially central part to the upper right part of the compartment member (5) as shown in FIG. 7, and the second compartment (5b) is substantially upper left. It is formed in the area of the part. Further, the discharge chamber (5c) is formed in a region extending from the left part of the central part to the diagonally lower right part. In FIG. 7, in order to facilitate understanding of the invention, hatching is applied to a portion where the partition wall (53) is formed.
[0044]
The first and second compartments (5a) (5b) in the compartment member (5) are formed in a non-communication state independently of each other. Further, the first compartment (5a) and the discharge chamber (5c) communicate with each other via the first discharge valve installation port (53a), and the second compartment (5b) and the discharge chamber (5c) are connected to each other. The space is communicated via the second discharge valve installation port (53b).
[0045]
Recessed step portions (54) and (54) for supporting valve members (7a) and (7b) described later are provided on both sides of the discharge valve installation ports (53a) and (53b) in the partition wall (53), respectively. Is formed.
[0046]
The bottom wall (51) in the first compartment (5a) of the compartment member (5) is formed with a first opening (51a) communicating with the inside of the cylindrical body (41). (5a) communicates with the first flow path (A) as described later. Furthermore, the bottom wall (51) in the second compartment (5b) is formed with a second opening (51b) communicating with the outside of the cylinder (51), and the second compartment (5b) is described later. As such, the second flow path (B) is communicated.
[0047]
A discharge port (55) is formed at a position near the lower side of the outer peripheral wall (52) of the partition chamber member (5), and the discharge chamber (5c) is opened to the outside through the discharge port (55). ing.
[0048]
Moreover, as shown in FIG.7 and FIG.8, in the rear surface side outer peripheral part of the bottom wall (51) in a partition chamber member (5), it is in the some boss | hub (26) for screw reception of the said fixture (2) in a tank. Correspondingly, boss receiving recesses (57) capable of accommodating the respective bosses (26) are formed at predetermined intervals in the circumferential direction. Further, three cylindrical screw insertion portions extending in the axial direction corresponding to any three of the boss receiving recesses (57) on the outer peripheral portion on the front surface side of the bottom wall (51) in the compartment member (5) (56) are formed at equal intervals in the circumferential direction.
[0049]
As shown in FIGS. 9 and 10, a driver shaft engagement hole (100) as a general-purpose tool engagement hole (general-purpose tool engagement portion) is formed in the outer peripheral wall (52) of the compartment member (5). ing. The hole (100) is opened in the outer peripheral surface of the outer peripheral wall (52), is formed in a bag path shape so as to extend toward the inside of the partition chamber member (5), and the interior of the hole (100) is the partition chamber. The inside of the member (5) is partitioned in a watertight state. Further, the driver shaft engaging hole (100) is formed so that its axis is orthogonal to the axis (X) of the flow path forming member (3).
[0050]
The driver shaft engaging hole (100) is configured to be able to insert a driver shaft (111) of a screw driver (110) as a general-purpose tool, and in the inserted state, the driver shaft (111) is engaged. By engaging with the inner peripheral surface of the hole (100), the driver (110) can be engaged in the direction (circumferential direction) around the axis (X) of the flow path forming member (3).
[0051]
As shown in FIG.11 and FIG.12, the cover body (6) is comprised with the disk-shaped hard synthetic resin molded product corresponding to the front-surface opening part of a compartment member (5).
[0052]
The lid (6) has a rectangular first suction port (6a) as a first suction valve installation port corresponding to the first discharge valve installation port (53a) of the compartment member (5). A rectangular second suction port (6b) as a second suction valve installation port is formed corresponding to the vicinity of the second discharge valve installation port (53b).
[0053]
Further, on the rear surface side of the lid (6), valve mounting grooves (61a) (61b) are formed corresponding to the first and second discharge valve installation ports (53a) (53b).
[0054]
Further, on the back side of the lid (6), three cylindrical screw insertion portions (66) extending along the axial direction corresponding to the three screw insertion portions (56) of the compartment member (5). Are formed respectively.
[0055]
A groove (69) for accommodating the upper end of the partition wall (53) of the partition chamber member (5) and the upper end of the screw insertion portion (56) in a positioning state is formed on the back side of the lid (6). ing.
[0056]
As shown in FIGS. 1 to 3, the lid (6) and the flow path forming member main body (4) are assembled and fixed to the in-tank fixture (2) by three tapping screws (37). . That is, the cylinder (41) of the flow path forming member main body (4) passes through the cylinder (21) of the in-tank fitting (2) and into the cylindrical hole of the inner cylinder (11) of the out-of-tank fitting (1). The boss (26) of the in-tank fitting (2) is inserted into the flow path forming member body (4) and the boss receiving recess (57) while being inserted through the O-ring (81). Thus, the three screw insertion portions (56) of the flow path forming member main body (4) are connected to any three corresponding bosses (26) among the plurality of bosses (26) of the in-tank fixture (2). Be adapted. Furthermore, the screw insertion part (66) of the lid (6) is inserted into the screw insertion part (56) of the flow path forming member main body (4) in an adapted state, and the lid (6) is inserted into the flow path forming member main body ( 4) is arranged in a closed manner in the front opening. In this state, the screw (37) is inserted into the screw insertion portion (66) (56) from the front side of the lid (6), and fixed to the corresponding boss (26) with screws. Thereby, the lid (6) is fixed to the flow path forming member main body (4), and the flow path forming member (3) is assembled. At the same time, the flow path forming member (3) is attached to the in-tank fitting (2 ).
[0057]
In this fixed state, the inside of the inner cylindrical body (11) of the outer tank fixture (1) communicates with the inside of the cylindrical body (41) of the flow path forming member (3), so that the first flow path (A ) And the first flow path (A) communicates with the first compartment (5a) through the first opening (51a). Further, the space between the inner and outer cylinders (11) and (12) of the tank outer fitting (1) is between the cylinder (21) of the tank inner fitting (2) and the cylinder (41) of the flow path forming member (4). The second flow path (B) is configured to communicate with the second flow path (B), and the second flow path (B) is communicated with the second compartment (5b) through the second opening (51b).
[0058]
Further, in this assembled state, the front part of the apparatus main body (10) (the front part of the flow path forming member), that is, the compartment member (5) and the lid (6) are inward of the inner surface of the bathtub. It is arranged in a protruding state.
[0059]
In addition, as shown in FIG. 3, between the rear surface side outer peripheral edge of the compartment member (5) in the flow path forming member (3) and the outer peripheral edge of the flange (35) in the in-tank fitting (2). Is configured such that a flat ring-shaped synthetic rubber packing (85) is interposed to achieve watertightness therebetween.
[0060]
The partition member (5) and the lid (6) of the flow path forming member (3) are formed with three bowl-shaped grooves (36) for attaching the filter member on the outer peripheral surface thereof.
[0061]
On the other hand, as shown in FIGS. 13 to 16, the valve members (7 a) and (7 b) provided in the flow path forming member (3) are composed of an integrally molded product of synthetic rubber. The valve members (7a) and (7b) are formed in a substantially L-shaped cross section, and one piece (horizontal piece) is configured as a rectangular plate-like discharge valve (71) and the other piece (vertical piece). Is configured as a rectangular plate-like suction valve (72). Furthermore, a substantially square bar-shaped valve support shaft (73) is provided at the connecting portion between the discharge valve (71) and the suction valve (72).
[0062]
On the upper surface side of the discharge valve (71), ribs (71a) are formed corresponding to the inner peripheral edges of the first and second discharge valve installation ports (53a) and (53b) of the flow path forming member (3). In addition, ribs (72a) are formed on the front side of the suction valve (72) corresponding to the inner peripheral edges of the first and second suction ports (6a) and (6b) of the lid (6). Yes.
[0063]
The front part of the valve support shaft (73) in the valve members (7) and (7) is fitted into the valve mounting grooves (61a) and (61b) on the back surface of the lid in the flow path forming member (3), and the valve Both end portions of the support shaft (73) are fitted into the recessed step portions (54) (54) on both sides of the first and second discharge valve installation ports (53a) (53b) in the flow path forming member (3). (See FIG. 7). As a result, as shown in FIG. 13, in the natural state, the discharge valves (71) and (71) of the valve members (7a) and (7b) connect the discharge valve installation ports (53a) and (53a) to the discharge chamber (5c) side. The suction valves (72) and (72) are disposed so as to block the suction ports (6a) and (6b) from the compartments (5a) and (5b) side. At this time, the outer peripheral edge of the discharge valve (71) (71) is in close contact with the peripheral edge (valve seat) of the discharge valve installation port (53a) (53b) on the discharge chamber (5c) side by elastic force. When hot water is about to flow from the discharge chamber (5c) side to the compartment (5a) (5b) side, the discharge valve installation port (53a) of the discharge valves (71) (71) is caused by the water pressure. (53b) is maintained closed and the flow of warm water in that direction is restricted, and conversely, warm water tends to flow from the compartments (5a) (5b) to the discharge chamber (5c). At that time, the discharge valve (71) (71) is elastically deformed toward the discharge chamber (5c) by the water pressure, so that the discharge valve installation port (53a) (53b) is opened and the hot water in that direction is opened. It is configured to allow distribution. Therefore, the discharge valves (71) and (71) of the valve members (7a) and (7b) are non-return valves that allow the hot water to flow in the discharge direction and prevent the flow in the suction direction from the discharge chamber (5c). Function.
[0064]
Further, the suction valve (72) (72) of the valve member (7a) (7b) has a peripheral edge portion (valve seat portion) of the suction port (6a) (6b) at the outer peripheral edge portion on the compartment (5a) (5b) side. ) By elastic force, and when hot water is about to flow out from the compartments (5a) and (5b) side, the water pressure causes the suction port (6a) of the suction valves (72) and (72). (6b) is maintained closed, the flow of warm water in that direction is restricted, and conversely, when warm water tries to flow into the compartment (5a) (5b) side from the outside, The suction valves (72) and (72) are elastically deformed inward by the water pressure, so that the suction ports (6a) and (6b) are opened, and the hot water in that direction is allowed to flow. Therefore, the suction valves (72) and (72) of the valve members (7a) and (7b) allow the warm water in the suction direction and block the flow in the discharge direction with respect to the compartments (5a) and (5b). Functions as a check valve.
[0065]
As shown in FIGS. 13 to 16, a fitting groove (73a) is formed on the front surface side of the valve support shaft (73) in the valve member (7) and corresponds to the groove (73a). A fitting projection (63) is formed on the back side of the lid (6), and the fitting projection (63) is fitted in the fitting groove (73a). Furthermore, a fitting hole (72b) is formed at the base end of the suction valve (72) in the valve member (7a) (7b), and the lid (6) of the lid (6) corresponds to the hole (72b). A fitting projection (62) is formed on the back surface side, and the fitting projection (62) is fitted into the fitting hole (72b).
[0066]
On the other hand, as shown in FIGS. 1 to 3 and 17, the filter member (9) covers the outer peripheral side surface of the compartment member (5) from the front surface of the lid (6) in the flow path forming member (3). It is provided with an exterior body (91), an inner frame body (92), and a filter body (93).
[0067]
The exterior body (91) is provided along a disc-shaped front cover that covers the front side of the apparatus main body (3), and a peripheral edge of the front cover, and an outer peripheral side surface of the front part of the apparatus main body (partition chamber member) And a press-molded product made of metal such as stainless steel having a side cover for covering.
[0068]
The filter body (93) is made of a substantially disc-shaped metal mesh sheet, and is arranged on the back surface side of the front cover inside the exterior body (91).
[0069]
The inner frame body (92) has a substantially disc shape, and is fitted and fixed to the back surface side of the front cover inside the exterior body (91) via the filter body (93), whereby the filter body (93 ) Is sandwiched between the exterior body (91) and the inner frame body (92).
[0070]
The front cover of the exterior body (91) is formed with a plurality of suction openings (95) penetrating in the front-rear direction.
[0071]
Further, as shown in FIGS. 2 and 3, the side cover of the exterior body (93) is formed with a discharge opening (97) corresponding to the discharge port (55) of the flow path forming member (3). .
[0072]
Further, on the inner peripheral side surface of the exterior body (91), there are three engagement protrusions (96) corresponding to the three flanged grooves (36) provided on the outer peripheral surface of the flow path forming member (3). It is formed in a protruding direction. The engaging protrusion (96) is inserted and engaged with the bowl-shaped groove (36), so that the filter member (9) is detachably attached to the flow path forming member (3).
[0073]
In this attached state, the discharge opening (97) of the filter member (9) is disposed in conformity with the discharge port (55) of the flow path forming member (3).
[0074]
In the present embodiment, the procedure for assembling the hot water outlet device (P) to the bathtub (T) is not particularly limited, but for example, it is assembled as follows.
[0075]
First, the flow path forming member (3) is attached to the in-tank fixture (2), and the apparatus main body (10) is assembled. That is, as described above, the valve members (7a) and (7b) are set in the lid (6) of the flow path forming member (3), and the valved lid (6) is set in the flow path forming member main body (4). It arrange | positions in the front opening part of a division chamber member (5). In this state, the screw (37) is inserted into the screw insertion portion (66) (56) from the front side of the lid (6), and screwed into the boss (26) to be fixed.
[0076]
The valve members (7a) and (7b) are bonded and fixed in advance to the lid (6) and the flow path forming member main body (4) in order to prevent the valve members (7a) and (7b) from falling off during transport or assembly. You can keep it.
[0077]
Subsequently, the outside-mounting bracket (1) is disposed at a position corresponding to the mounting hole (H) on the side wall outer surface side of the bathtub (T), while the in-tank fitting (2) of the apparatus main body (10). The cushioning member (84) and the packing (83) are disposed on the rear surface side of the flange (15) in the cylinder body (21) of the in-tank fitting (2) in the apparatus main body (10) in this state. It is inserted into the mounting hole (H) from the inside of the bathtub (T) and screwed into the outer cylindrical body (12) of the external tank fixture (1).
[0078]
When this screwing operation is performed, first, the cylinder body (21) on the apparatus main body (10) side is lightly screwed into the outer cylinder body (12) of the external tank fixture (1) and temporarily fixed. Then, as shown in FIG. 10, the screwdriver shaft (111) of the screwdriver (110) is inserted into the screwdriver shaft engagement hole (100) in the apparatus main body (11) and engaged, and the screwdriver (110) is gripped. Holding the part (112) by hand, the driver (110) is rotated together with the main body (10) about the axis. Thus, by rotating the apparatus main body (10) via the driver (110), a sufficient rotational moment can be obtained in the apparatus main body (10), and the cylindrical body (21) of the apparatus main body (10) can be removed. It can be firmly screwed and fixed to the outer cylinder (12) of the tank outer attachment (1).
[0079]
Subsequently, by attaching the filter member (9) to the flow path forming member (3), the assembling work of the hot water port device (P) to the bathtub (T) is completed.
[0080]
In addition, the assembly procedure of the hot water outlet device (P) is not limited to the above-described one. For example, after attaching the external fixture (1) and the internal fixture (2) to the bathtub wall, both fixtures are attached. (1) You may make it fix the flow-path formation member (3) with a valve to (2) with screws.
[0081]
In the hot water outlet device (P) assembled in the bathtub (T) in this manner, the pipe from the outdoor water heater is connected to the outer pipe connecting portion (1a) (1b) of the outdoor fitting (1). A system is formed.
[0082]
In this bathtub system, when hot water is supplied into the bathtub (T) to store hot water, the hot water is supplied to both of the two outer pipe connecting portions (1a) and (1b), and the two flow paths (A). Both (B) are used as discharge channels for supplying hot water to the bathtub (T). That is, when warm water flows into the two compartments (5a) and (5b) of the flow path forming member (3) through the flow paths (A) and (B), the valve member (7 The discharge valves (71) and (71) of (7) are opened, and hot water flows into the discharge chamber (5c) from the compartments (5a) and (5b) and joins, and the flow path forming member (3) The product is supplied to the inside of the bathtub (T) through the discharge port (55) and the filter opening (97).
[0083]
In addition, even if the hot water surface in the bathtub (T) reaches above the hot water outlet device (P) by this hot water storage treatment, the back flow of the hot water is prevented. That is, when the warm water flows through the compartments (5a) and (5b) of the flow path forming member (3), the suction valves (72) and (72) of the valve members (7) and (7) Since it closes in close contact with the inlets (6a) and (6b), the hot water in the bathtub is prevented from flowing through the inlets (6a) and (6b), and the hot water flows back into the hot water inlet device (P). Is prevented.
[0084]
On the other hand, when performing a reheating process such as reheating the hot water in the bathtub (T), it is connected to the forward pipe of the outdoor water heater among the two flow paths (A) of the hot water outlet device (P). The flow path on the other side functions as a discharge flow path, and the flow path on the side connected to the return pipe functions as a suction flow path, so-called forced circulation is performed. For example, when the pipes are connected so that the first flow path (A) is a discharge flow path and the second flow path (B) is a suction flow path, the hot water supplied from the water heater is the first flow path ( A) flows into the first compartment (5a), opens the discharge valve (71), flows into the discharge chamber (5c), and passes through the discharge port (55) and the filter opening (97). (T) is supplied.
[0085]
Further, in the suction channel, the second compartment (5b) becomes negative pressure due to the negative pressure of the return pipe of the outdoor water heater and the second flow channel (B). For this reason, the suction valve (72) of the second suction port (6b) in the flow path forming member (3) is opened by the water pressure in the bathtub (T), and the hot water in the bathtub (T) is filtered by the filter member (9). ) Through the second suction port (6b) and into the second compartment (5b), and then returned to the outdoor water heater through the second channel (B).
[0086]
In addition, when the two flow paths (A) and (B) of the hot water outlet device (P) are connected to the forward pipe and the return pipe of the outdoor water heater in the reverse manner, the flow paths (A) In (B), hot water is circulated in the opposite direction to that described above and forcedly circulated.
[0087]
In this way, the hot water in the bathtub (T) is circulated, and the reheating process is performed.
[0088]
As described above, according to the hot water outlet device for bathtub (P) of the present embodiment, the driver shaft engagement hole (100) is formed in the outer peripheral wall (52) of the device main body (10). When the apparatus main body (10) is screwed into the outside-mounting fixture (1), the shaft (111) of the driver (100) is inserted into and engaged with the engagement hole (100) of the apparatus main body (10). Holding the gripping part (112) of (100) by hand and rotating the apparatus main body (10) together with the driver (110), the apparatus main body (10) is screwed into the external fixture (1) with a strong rotational torque. It is possible to fix the device main body (10) firmly and securely.
[0089]
Moreover, since the screwdriver (110) as a general-purpose tool is used when screwing and fixing the apparatus main body (10), there is no need to use a dedicated tool, and that is extra for preparation and usage. Assembling work can be performed efficiently and easily without spending labor.
[0090]
In particular, in this embodiment, the driver shaft engaging hole (100) is formed in the flow path forming member (3) in the apparatus main body (10), and therefore the flow path forming member (3) is attached to the in-tank fitting ( 2) After fixing the screw to the assembly and assembling the apparatus main body (10), the apparatus main body (10) can be screwed into the outside-mounting fixture (1). After screwing and fixing (2) to the external fixture (1), the assembly work is more efficient compared to fixing the flow path forming member (3) to the internal fixture (2) with screws. Can be done well. That is, when the flow path forming member (3) is screwed to the in-tank fixture (2) assembled to the bathtub wall surface as in the prior art, the screwing operation is performed in a narrow work space in the bathtub. Since it is necessary, a great burden is imposed on the operator, and it is difficult to perform the assembly work efficiently.
[0091]
On the other hand, as in this embodiment, after the flow path forming member (3) is screwed to the in-tank fitting (2) and the apparatus main body (10) is assembled, the apparatus main body (10) is removed from the outside of the tank. When screwing into the fixture (1), the screw fixing work of the flow path forming member (3) to the in-tank fixture (2) can be performed at an appropriate place other than the assembly site. Can accurately secure the flow path forming member (3) to the in-tank fitting (2) with a margin, and as a result, the assembly operation of the hot water port device (P) can be performed more efficiently and easily. be able to. Further, in the present embodiment, when the apparatus main body (10) is assembled by screwing the flow path forming member (3) to the in-tank fixture (2) in advance before arrival at the site, There is no need to perform assembly at the site, and the assembly work at the site can be performed more efficiently.
[0092]
In the conventional hot water outlet device, it is substantially impossible to assemble the device main body to the bathtub wall portion after assembling the screw fixing device main body with the flow path forming member to the in-tank fixture. In other words, conventionally, since the tank fixture in the single state is configured to be screwed into the fixture outside the tank using a dedicated tool for screwing operation, the flow path forming member is assembled to the tank fixture. In such a state, the dedicated tool cannot be used, and the in-tank fixture cannot be screwed into the out-of-tank fixture. Therefore, in the conventional hot water outlet apparatus, as described above, after assembling the in-tank fitting (2) to the bathtub wall, the channel forming member (3) is screwed to the in-tank fitting (2). It is necessary to screw and fix the in-tank fitting (2) to the out-of-tank fitting (1) before screwing the flow path forming member (3) to the in-tank fitting (2). .
[0093]
On the other hand, in the hot water outlet device (P) of the present embodiment, the valve members (7a) and (7b) having the discharge valve (71) and the suction valve (72) are used, so the number of parts can be reduced. Thus, the structure can be simplified and the cost can be reduced.
[0094]
Furthermore, the four valves of the first and second discharge valves (71) and the first and second suction valves (72) can be assembled simply by assembling the valve members (7a) and (7b) to the apparatus main body (10). Thus, the number of assembling steps can be reduced, the assembling work can be easily performed, and the cost can be further reduced.
[0095]
In addition, a valve support shaft (73) is formed at the connecting portion between the discharge valve (71) and the suction valve (72) in the valve members (7a) and (7b), and the shaft (73) is connected to the apparatus main body (10). Since it is assembled, the valve members (7a) and (7b) can be assembled in a stable state, the discharge valve (71) and the suction valve (72) can have high operational reliability, and the quality is improved. be able to.
[0096]
Further, in the embodiment, since the hot water is discharged from the front surface of the apparatus main body (10) into the bathtub and the hot water in the bathtub is sucked from the peripheral side surface, a side discharge / front suction system is adopted. For example, when hot water is stored, hot water can be smoothly supplied along the inner surface of the bathtub, so that generation of sound due to scattering of the discharged hot water can be prevented, and hot water can be gently applied. Furthermore, when reheating, the hot water that is discharged spreads along the inner surface of the bathtub all over the inner peripheral surface, and the hot water in the center of the bathtub is sucked into the apparatus so that the hot water is greatly stabilized in the bathtub. It is possible to effectively prevent a problem (short cycle) that circulates, for example, the discharged hot water is sucked into the apparatus without being circulated, and the reheating process can be performed efficiently and smoothly.
[0097]
In the present embodiment, a discharge chamber (5c) is formed in the apparatus main body (10), and hot water flowing out from the two compartments (5a) (5b) is once introduced into the discharge chamber (5c). Since the water is discharged into the bathtub through one discharge port (55), for example, compared with the case where hot water is discharged into the tank separately from two compartments, It becomes easy to control the directionality and the like, and warm water can be discharged efficiently and smoothly.
[0098]
Further, when hot water having different temperatures is supplied from the first and second flow paths (A) and (B) during hot water storage or the like, the hot water having this temperature difference is sufficiently mixed in the discharge chamber (5c) to be at an appropriate temperature. Since it is discharged into the bathtub after entering the state, it is possible to effectively prevent variation in the water temperature distribution in the tank, combined with the hot water circulation action, and to obtain a comfortable bathing environment from the beginning. be able to.
[0099]
However, in the present invention, it is not always necessary to provide a discharge chamber, and hot water may be discharged directly from the compartments (5a) and (5b) into the bathtub. In this case, it is needless to say that a portion conceived of the discharge valve installation ports (53a) and (53b) in the above embodiment is configured as a discharge port.
[0100]
Further, according to the hot water outlet device (P) of the present embodiment, when the rear surface of the flange of the in-tank fitting (2) is brought into close contact with the inner wall surface of the bathtub via the buffer member (84) and the packing (83), the flange (25) Since the rib rib (20) is formed on the rear surface side, the buffer member (84) and the packing (83) are pressed and deformed by the rib (20), and the packing (83) and the flange ( 25), the water intrusion route between them becomes complicated, and the water tightness can be improved. Furthermore, in the vicinity of the rib forming portion, the adhesion of the packing (83) to the flange (25) side and the bathtub wall surface side is enhanced, and the water tightness between the bathtub wall surface and the flange (25) can be further improved.
[0101]
Moreover, in this embodiment, since two rib ribs (20) are provided, the contact area of the seal portion between the flange (25) and the bathtub wall surface can be further increased, and the moisture intrusion path can be further increased. It can be formed in a complicated manner, and water tightness can be further improved.
[0102]
In this embodiment, since the flange (25) of the in-tank fitting (2) is pressed against the packing (83) via the buffer member (84), the in-tank fitting (2) is placed in the tank. When screwing and fixing to the outer fixture (1), it is possible to reliably prevent problems such as the packing (83) being torn.
[0103]
In the above embodiment, the driver shaft engaging hole (100) is formed as a general-purpose tool engaging hole in the front outer peripheral wall (52) of the flow path forming member (3). The general-purpose tool engagement hole may be formed at any position on the front outer surface of the flow path forming member (3). For example, as shown in FIG. 18, the driver shaft engaging hole (100) may be provided in the lid (6) of the flow path forming member (3). In this case, since the axis of the driver shaft engaging hole (100) can be inclined with respect to the axis of the flow path forming member (3), the driver (110) is inserted into the engaging hole (100). In addition, the grip portion (112) of the driver (110) is disposed to be inclined with a sufficient distance from the inner wall surface of the bathtub. Accordingly, a sufficient space can be secured around the grip portion of the driver (110). For example, the driver (110) and the flow path forming member (device main body) are screwed by holding the grip portion (112) by hand. At this time, it is possible to effectively prevent a problem that the operator's hand interferes with the inner wall surface of the bathtub, and the screwing operation of the apparatus main body (10) can be performed more efficiently and smoothly.
[0104]
In the above embodiment, the case where the discharge valve and the suction valve are integrally formed has been described as an example. However, the present invention is not limited to this, and the two discharge valves may be formed integrally, or two The suction valve may be integrally formed. In short, it is only necessary that two or more of the four valves are integrally formed.
[0105]
Moreover, in the said embodiment, although the case where two protrusion parts (protrusion rib) provided in the flange of a tank fixture were provided, in this invention, you may provide only one protrusion part. Three or more may be provided.
[0106]
Furthermore, the protrusions are not necessarily continuous along the circumferential direction, and may be provided intermittently.
[0107]
Moreover, in the said embodiment, although the case where one discharge port was provided was demonstrated, this invention is applicable also to the hot water port apparatus which has two or more discharge ports.
[0108]
Furthermore, in the above embodiment, the case where the present invention is applied to a non-polar type hot water outlet apparatus has been described as an example. However, the present invention is not limited to hot water in which an outgoing pipe and a return pipe connected to a water heater are preset. It can also be applied to mouth devices.
[0109]
Moreover, in the said embodiment, although comprised so that hot water may be discharged from the outer peripheral side surface of a filter member, you may comprise this invention so that warm water may be discharged from the clearance gap between a filter member and a bathtub inner wall surface. .
[0110]
Furthermore, in the above-described embodiment, the description has been given by taking an example of a forced circulation type replenishable device, but the present invention can also be applied to a hot water outlet device that performs only hot water storage processing such as hot water.
[0111]
【The invention's effect】
As described above, according to the hot water outlet apparatus for bathtubs of the present invention, since the general-purpose tool engagement hole is formed in the front part of the apparatus main body, the apparatus main body is attached to the outside of the tank through the attachment hole of the bathtub wall part. A special tool is used by inserting and engaging a general-purpose tool such as a screwdriver into the general-purpose tool engagement hole of the main unit and screwing the main unit into the outside fixture using the general-purpose tool. The apparatus main body can be firmly and securely assembled. Therefore, it is not necessary to spend extra labor for the preparation and use method of the dedicated tool, and there is an effect that the assembling work can be performed efficiently and easily.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a hot water outlet apparatus for bathtubs according to an embodiment of the present invention.
FIG. 2 is an exploded cross-sectional view of the hot water outlet device of the embodiment.
FIG. 3 is an exploded perspective view showing the hot water outlet device of the embodiment.
FIG. 4 is a perspective view showing the in-tank fixture in the hot water outlet device of the embodiment as seen from the back side.
FIG. 5 is an enlarged cross-sectional view showing a seal portion between the in-tank fixture and the bathtub inner surface in the hot water outlet device of the embodiment.
FIG. 6 is an exploded perspective view showing a flow path forming member in the hot water port apparatus of the embodiment.
FIG. 7 is a front view showing the main body of the flow path forming member in the embodiment.
FIG. 8 is a rear view showing the flow path forming member main body of the embodiment.
FIG. 9 is a side view showing the flow path forming member body of the embodiment.
FIG. 10 is a perspective view for explaining the screwing operation of the flow path forming member in the embodiment.
FIG. 11 is a front view showing a lid of the flow path forming member in the embodiment.
FIG. 12 is a rear view showing a lid of the flow path forming member of the embodiment.
FIG. 13 is an enlarged cross-sectional view of the periphery of the valve member in the hot water outlet device of the embodiment.
FIG. 14 is a cross-sectional view showing a valve member in the hot water port apparatus of the embodiment.
FIG. 15 is a front view showing the valve member of the embodiment.
FIG. 16 is a bottom view showing the valve member of the embodiment.
FIG. 17 is a front view showing the hot water outlet apparatus of the embodiment.
FIG. 18 is a perspective view showing a flow path forming member of a hot water port apparatus which is a modification of the present invention.
[Explanation of symbols]
1 ... Attachment outside the tank
2 ... In-tank fixture
3 ... Flow path forming member
10 ... Main body
100 ... Driver shaft engagement hole (general-purpose tool engagement hole, general-purpose tool engagement portion)
110 ... Screw driver (general-purpose tool)
111 ... Driver shaft
112 ... gripping part
P ... Hot water outlet for bathtub
T ... bathtub
H ... Mounting hole

Claims (7)

浴槽壁部の取付孔に貫通状態に設けられる浴槽用温水口装置であって、
取付孔の浴槽外面側に配置される槽外取付具と、
前部が浴槽内面側に配置される態様に取付孔を通じて前記槽外取付具にねじ込み固定される装置本体とを備え、
前記装置本体の前部における外表面に、汎用工具を挿入し、かつその挿入状態においては汎用工具を前記装置本体の軸心回り方向に係合するための汎用工具係合孔が設けられてなることを特徴とする浴槽用温水口装置。
A hot water outlet apparatus for a bathtub provided in a through state in a mounting hole of a bathtub wall,
A tank external fixture disposed on the outer surface side of the bathtub of the mounting hole;
A device body that is screwed and fixed to the outside-mounting fixture through the mounting hole in a mode in which the front portion is disposed on the inner surface of the bathtub,
A general-purpose tool engaging hole for inserting a general-purpose tool into the outer surface of the front portion of the apparatus main body and engaging the general-purpose tool in the direction around the axis of the apparatus main body in the inserted state is provided. A hot water outlet apparatus for a bathtub.
前記装置本体は、取付孔を通じて前記槽外取付具にねじ止め固定される槽内取付具と、その槽内取付具の前面側に取り付けられる流路形成部材とを具備し、
前記流路形成部材の前部が、前記装置本体の前部として構成されてなる請求項1記載の浴槽用温水口装置。
The apparatus main body includes an in-tank fixture that is screwed and fixed to the external fixture through an attachment hole, and a flow path forming member that is attached to the front side of the in-tank fixture.
The hot water inlet apparatus for bathtubs according to claim 1, wherein a front part of the flow path forming member is configured as a front part of the apparatus main body.
前記装置本体の前部には、軸心回り方向に沿って外周壁が設けられ、その外周壁に前記汎用工具係合孔が形成されてなる請求項1又は2記載の浴槽用温水口装置。  The hot water inlet apparatus for bathtubs according to claim 1 or 2, wherein an outer peripheral wall is provided in a front portion of the apparatus main body along a direction around an axis, and the general-purpose tool engagement hole is formed in the outer peripheral wall. 前記装置本体の前部には、軸心回り方向に沿って外周壁が設けられるとともに、その外周壁の前面側に蓋体が設けられ、
前記蓋体に前記汎用工具係合孔が形成されてなる請求項1又は2記載の浴槽用温水口装置。
In the front portion of the apparatus main body, an outer peripheral wall is provided along the direction around the axis, and a lid is provided on the front side of the outer peripheral wall,
The hot water port apparatus for bathtubs according to claim 1 or 2, wherein the general-purpose tool engagement hole is formed in the lid.
前記汎用工具係合孔は、スクリュードライバーのドライバー軸を係合し得るドライバー軸係合孔をもって構成されてなる請求項1ないし4のいずれかに記載の浴槽用温水口装置。  The hot water port apparatus for a bathtub according to any one of claims 1 to 4, wherein the general-purpose tool engagement hole is configured with a driver shaft engagement hole capable of engaging a driver shaft of a screw driver. 前記ドライバー軸係合孔に、スクリュードライバーのドライバー軸を挿入係合した状態において、そのスクリュードライバーの把持部が浴槽内面から離間して配置されるよう構成されてなる請求項5記載の浴槽用温水口装置。  The hot water for bathtubs according to claim 5, wherein the screw driver gripping portion is arranged to be spaced apart from the inner surface of the bathtub in a state where the screwdriver driver shaft is inserted and engaged with the driver shaft engaging hole. Mouth device. 前記汎用工具係合孔は、その軸心が前記装置本体の軸心に対し傾斜するよう設定されてなる請求項1ないし6のいずれかに記載の浴槽用温水口装置 The hot water inlet apparatus for a bathtub according to any one of claims 1 to 6, wherein the general-purpose tool engagement hole is set so that an axis thereof is inclined with respect to an axis of the apparatus main body .
JP2003131427A 2003-05-09 2003-05-09 Hot water outlet device for bathtub Expired - Fee Related JP4156971B2 (en)

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