JP3989067B2 - Bubble generation bath equipment - Google Patents

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JP3989067B2
JP3989067B2 JP33333197A JP33333197A JP3989067B2 JP 3989067 B2 JP3989067 B2 JP 3989067B2 JP 33333197 A JP33333197 A JP 33333197A JP 33333197 A JP33333197 A JP 33333197A JP 3989067 B2 JP3989067 B2 JP 3989067B2
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suction port
bathtub
bath water
pipe
suction
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JPH11164864A (en
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一久 西尾
徳薫 大網
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株式会社セイオー技研
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Description

【0001】
【発明の属する技術分野】
本発明は、気泡発生浴槽装置、特浴湯の吸込口と気泡流の噴出ノズルに浴湯を給送する循環ポンプとの間の配管を短くしても、吸込口から気泡を吸い込みにくくした吸込口の改良に関するものである。
【0002】
【従来の技術】
従来の気泡発生浴槽装置は、浴槽本体の吸込口用開口に設けた吸込口より浴槽本体内の浴湯を吸い込み、この吸込口より吸い込んだ浴湯を循環ポンプを介して外部循環路を通して外部循環させ、この外部循環した浴湯をエア(空気)の吸気口より取り入れた大気中のエアとともに浴槽本体に設けた噴出用開口の噴出ノズルに導き、気泡流として浴槽本体内に噴出させるものであって、快適な入浴ができる浴槽装置として広く利用されている。
【0003】
このような気泡発生浴槽装置においては、入浴者の入浴姿勢によっては、気泡流が人体に沿って吸込口に流れ込んで、エアを吸い込むという事態を生じた。吸込口がエアを吸い込むと、循環ポンプのインペラにエアが絡まり、循環ポンプ本来の性能の低下を来たして、気泡流の吐出圧力が弱まり、やがては気泡流を噴出しなくなるという問題を生じる。このため、このような事態とならないようにするため、吸込口を噴出用開口の噴出ノズルよりできるだけ離れた位置に設けるようにしていた。
【0004】
【発明が解決しようとする課題】
しかしながら、噴出用開口の噴出ノズルは循環ポンプが配設された近傍に配置するため、吸込口を噴出用開口の噴出ノズルよりできるだけ離れた位置に設けるようにすると、吸込口から循環ポンプまでの吸込配管が長くなるという問題を生じた。ここで、吸込配管が長くなると吸込配管のコストが高くなるという問題を生じる。また、長い吸込配管を用いると、吸込配管と循環ポンプとの接続部に金属製のジョイントを設けることが必要となって、吸込配管を配管するための施工性、作業性が極めて悪くなって、この種の浴槽装置の施工に長時間を要するようになり、その作業も面倒で高価になるという問題を生じる。
【0005】
さらに、吸込配管が長くなると配管抵抗が増大するため、循環ポンプからの吐出圧力が低下し、快適な入浴ができにくくなるという問題も生じた。
そこで、本発明は上記問題点に鑑みてなされたものであり、吸込口と循環ポンプとの間の吸込配管を短くしても、吸込口より気泡を吸い込みにくくした吸込口を得ることにある。
【0006】
【課題を解決するための手段とその作用・効果】
本発明は、上記の課題を解決するため、浴槽の周壁に設けた吸込口から流入して同吸込口に連結した循環ポンプの作動により吸込まれた浴湯を外部配管を通して循環させて前記吸込口から離れた位置にて前記浴槽の周壁に設けた噴出ノズルから前記外部配管に吸引される空気の気泡とともに前記浴槽内に噴出させるようにした気泡発生浴槽装置において、前記吸込口に嵌合してその内端部を前記浴槽内に突出させた状態で同浴槽の側壁に組付けた筒状の吸込口フランジと、該吸込口フランジの外側フランジ部に嵌合されてその周壁に設けた複数の吸込用開口から前記浴槽内の浴湯を吸込んで前記吸込口フランジの内部に流入させる吸込口カバーと、前記吸込口フランジの内端部に螺合して組付けた状態にて同吸込口フランジに流入した浴湯がその内部を通して流出するポンプ連結口と前記外部配管に連結した戻り管に接続されて前記循環ポンプの吐水口から還流する浴湯がその内部を通して吐出する吐出管を有する吸込口本体とを備え、前記吸込口カバーの内壁中央部に形成した筒状部に前記吸込口本体の吐出管の内端を嵌合して、同吸込口カバーの筒状部から吐出する浴湯が同吸込口カバーの吸込用開口に吸込まれる浴湯の気泡流を押し戻すようにし、前記吸込口カバーの筒状部を閉塞する覆蓋部分に、前記吸込口本体の吐出管から吐出する浴湯が放射状に流出する複数の吐出開口を形成し、前記吸込口カバーの筒状部を閉塞する前記覆蓋部分の内壁に略半球状の膨出部を形成して、この膨出部に向けて吐出した浴湯が前記複数の吐出開口から放射状に流出するようにしたことを特徴とする気泡発生浴槽装置を提供するものである。
【0007】
上記のように構成した気泡発生浴槽装置においては、吸込口カバーの吸込用開口より吸い込んだ浴湯を、吸込口本体に戻して吸込口カバーの吐出用開口より吐出するようにしたので、噴出用開口に設けた噴出ノズルから噴出された気泡流中の気泡が吐出用開口より吐出された浴湯により押し戻され、吸込口の吸込用開口に気泡が吸い込まれるのを防止できる。このため、吸込口から循環ポンプまでの吸込配管の長さを短くしても、循環ポンプのインペラにエア(空気)が絡まることが防止できて、循環ポンプ本来の性能を充分に発揮できるようになって、快適な入浴が可能となる。
【0008】
また、吸込口から循環ポンプまでの吸込配管の長さを短くできるので、吸込配管のコストが安くなるとともに、吸込配管と循環ポンプとの接続部に金属製のジョイントを設ける必要がなくなるため、吸込配管を配管するための施工性、作業性が極めて良好になって、この種の浴槽装置の施工が短時間で行うことが可能となる。
【0013】
【発明の実施の形態】
以下に、本発明の気泡発生浴槽装置の一実施形態を図1〜図5に基づいて説明する。なお、図1は本発明の気泡発生浴槽装置の概略構成を示す斜視図であり、図2は本発明の吸込口を示す一部破断断面図であり、図3は図2の吸込口カバーを示す斜視図であり、図4は循環ポンプユニットの構造を示す一部破断図であり、図5は図1の循環ポンプを駆動するための回路図である。
【0014】
本発明の気泡発生浴槽装置10は、上面開口の箱型に形成した浴槽本体10aと、この浴槽本体10aの前壁11に設けた背側噴出用開口11a,11bに前壁11より外方に突出して配設した2個の背側噴出ノズル20a,20bと、後壁12に設けた足側噴出用開口12a,12bに後壁12より外方に突出して配設した2個の足側噴出ノズル20c,20dと、浴槽本体10aの側壁13に設けた吸込口用開口13aに側壁13より外方に突出して配設した吸込口30と、循環ポンプユニット40と、浴槽本体10aの外周縁に配設した浴湯の外部循環路Lと、電磁弁50,51,52,53等からなる吸気系とから構成している。
【0015】
なお、背側噴出ノズル20a,20bは足側噴出ノズル20c,20dよりも高位置に設けて、それぞれ入浴者の背部および足部の所定の部位に確実に気泡噴流を当てることができるようにしている。また、浴槽本体10aの側壁13の下部に設けた吸込口30は足側噴出ノズル20c,20dよりも低位置に設けている。
【0016】
吸込口30は足側噴出ノズル20c,20dの近傍に配設しており、この吸込口30は吸込口本体31と、この吸込口本体31を浴槽本体10aの側壁13に設けられた吸込口用開口13aに固定する吸込口フランジ32と、複数の開口を有する吸込口カバー33とを備えている。吸込口本体31は、吸込口フランジ32に螺合されるねじ溝部31aと、後述する循環ポンプユニット40の循環ポンプ(P)41の吸水口41a(図4参照)に連結されるポンプ連結口31bと、吸込口本体31の略中央部に一体的に形成されて循環ポンプ(P)41の吐水口41b(図4参照)に連通する吐出管31cとを備えている。
【0017】
吸込口フランジ32は円筒部32aと、この円筒部32aから垂直方向に延出するフランジ部32bとからなり、吸込口本体31を浴槽本体10aの側壁13に固定するために、円筒部32aの先端部には吸込口本体31を螺合するためのねじ山部32cを備えている。これにより、吸込口本体31を浴槽本体10aの側壁13に設けられた吸込口用開口13aの外方にゴム製パッキング34を介して配置し、吸込口フランジ32を側壁13に設けられた吸込口用開口13aの内方にゴム製パッキング34を介して配置し、吸込口フランジ32に設けられたねじ山部32cを吸込口本体31に設けられたねじ溝部31aに螺合させることにより、吸込口本体31は浴槽本体10aの側壁13に固定されるようになる。
【0018】
吸込口カバー33は、その中央部が外方に突出する突出部33aと、吸込口フランジ32のフランジ部32bの外周壁に係止される外周壁33bと、吸込口本体31の吐出管31cの先端部の外周壁を覆うように形成された筒状部33cとを備えている。なお、吸込口カバー33の筒状部33c内の突出部33aの内面側には、吸込口カバー33の内方に膨出する略半円球状の膨出部33dを備えている。そして、吸込口カバー33の突出部33aの側壁には複数の吐出用開口33eを備えるとともに、外周壁33bの上壁には複数の吸込用開口33fを、外周壁33bの側壁には複数の吸込用開口33gをそれぞれ設けている。
【0019】
この浴槽本体10aの外周縁に配設した外部循環路Lには、浴湯を循環させる循環ポンプ(P)41と、この循環ポンプ(P)41を駆動するポンプ駆動モータ(M)47からなる循環ポンプユニット40を配設している。この循環ポンプ(P)41の吸水口41a(図4参照)は吸込パイプ連結体35(ポリブテンパイプとL字状ポリブテン継手を熱溶着により一体化したもの。以下、吸込パイプ(吸込配管)35という)の一端が連通接続され、吸込パイプ35の他端は吸込口30のポンプ連結口31bに連通接続している。
【0020】
循環ポンプ(P)41の吐水口41b(図4参照)にはT字状ポリブテン継手47が接続されており、T字状ポリブテン継手47の一端は戻り管36に接続されるとともに、T字状ポリブテン継手47の他端は第1強送パイプ連結体43(ポリブテンパイプとL字状ポリブテン継手とT字状ポリブテン継手とを熱溶着により一体化したもの。以下、第1強送パイプ43という)を介して背側噴出ノズル20a,20bに連通接続している。この第1強送パイプ43にはT字状ポリブテン継手45および46を連通接続しており、これらの継手45および46に連通接続された第2強送パイプ連結体44(ポリブテンパイプとL字状ポリブテン継手とT字状ポリブテン継手とを熱溶着により一体化したもの。以下、第2強送パイプ44という)を介して足側噴出ノズル20c,20dに連通接続している。
【0021】
これにより、ポンプ駆動モータ(M)47を駆動することにより、吸込口30に設けられた吸込口カバー33の複数の吸込用開口33fおよび33gより流入する浴湯はポンプ連結口31bおよび吸込パイプ35を通して循環ポンプ(P)41の吸水口41aに吸い込まれる。一方、循環ポンプ(P)41の吐水口41bより吐出された浴湯の一部はT字状ポリブテン継手48および戻り管36を通して吸込口本体31の吐出管31c内に流入し、複数の吐出用開口33eから吐出されるようになる。
【0022】
このとき、略半円球状の膨出部33dに沿って吐出用開口33eから流出するようになるため、吐出管31c内に流入した浴湯が吐出用開口33eよりスムーズに吐出されるようになる。このため、足側噴出用開口12a,12bに設けた噴出ノズル20c,20dから噴出された気泡流中の気泡が吐出用開口33eより吐出された浴湯により押し戻されるため、吸込口30の吸込用開口33f,33gに気泡が吸い込まれるのが防止できるようになるとともに、浴湯の吸い込みと吐出がスムーズに行われるようになる。
【0023】
また、循環ポンプ(P)41の吐水口41bより吐出された浴湯の残部はT字状ポリブテン継手48および外部循環路Lの第1強送パイプ43を介して背側噴出ノズル20a,20bに強送され、また外部循環路Lの第2強送パイプ44を介して足側噴出ノズル20c,20dに強送されて、各噴出ノズル20a,20bおよび20c,20dより浴槽本体10a内の浴湯が吐出されるようになる。
【0024】
一方、吸気系は、浴槽本体10a外部の背側噴出ノズル20a,20bの上部近傍に配設した一対の電磁弁50,51と、こららの一対の電磁弁50,51と背側噴出ノズル20a,20bとを接続する吸気管52と、浴槽本体10a外部の足側噴出ノズル20c,20dの上部近傍に配設した一対の電磁弁53,54と、こららの一対の電磁弁53,54と足側噴出ノズル20c,20dとを接続する吸気管55とから構成される。
【0025】
電磁弁50の吸気管52に接続されない他端は大気中に開口する大口径の吸気口50aを備えており、この吸気口50aには吸気音を消音するフード50bを被着している。電磁弁51の吸気管52に接続されない他端は大気中に開口する小口径の吸気口51aを備えており、この吸気口51aには吸気音を消音するフード51bを被着している。電磁弁53の吸気管55に接続されない他端は大気中に開口する大口径の吸気口53aを備えており、この吸気口53aには吸気音を消音するフード53bを被着している。電磁弁54の吸気管55に接続されない他端は大気中に開口する小口径の吸気口54aを備えており、この吸気口54aには吸気音を消音するフード54bを被着している。
【0026】
このように、背側噴出ノズル20a,20bと吸気口50a,51aとが電磁弁50,51を介して連通しており、足側噴出ノズル20c,20dと吸気口53a,54aとが電磁弁53,54を介して連通していると、各噴出ノズル20a,20bより浴湯が噴出されると、その噴出力により吸気口50aあるいは吸気口51aよりエアが吸い込まれて、エアが背側噴出ノズル20a,20bに流入する。また、各噴出ノズル20c,20dより浴湯が噴出されると、その噴出力により吸気口53aあるいは吸気口54aよりエアが吸い込まれて、エアが足側噴出ノズル20c,20dに流入する。この結果、各噴出ノズル20a,20b,20c,20dより噴出する浴湯は気泡流となって各噴出ノズル20a,20b,20c,20dより噴出されるようになる。
【0027】
なお、各電磁弁50,51,53,54は強・弱切換スイッチ57,58(図5参照)の切換状態に基づき開状態となる常閉の電磁弁である。したがって、例えば、強・弱切換スイッチ57,58により強(大口径の開口を有する吸気口50a,53aよりエアを吸気する)が選択されると、電磁弁50,53は開状態となって、大容量のエアが吸気口50a,53aより背側噴出ノズル20a,20bおよび足側噴出ノズル20c,20dに流入し、浴湯が大気泡流となって背側噴出ノズル20a,20bおよび足側噴出ノズル20c,20dより浴槽本体内10a内に勢いよく噴出するようになる。
【0028】
図4は循環ポンプユニット40の構造を示す一部破断図であり、図4(a)は正面図であり、図4(b)はその側面図である。循環ポンプユニット40は浴湯を循環させる循環ポンプ(P)41とこの循環ポンプ(P)41を駆動するポンプ駆動モータ(M)47からなる。循環ポンプ(P)41はうず巻型遠心ポンプであって、ケーシング42とインペラ43とケーシングカバー44とから構成される。
【0029】
ケーシング42の上部には吐水口41bを配設している。また、ケーシング42の下部の側部には正方形状のフランジ部42aを設けており、その中心部には吸水口41aを配設するとともに、フランジ部42aの4隅には吸込パイプ35の一端が取り付けられた図示しないフランジを取り付けるための4個のねじ孔42b,42b,42b,42bが配設されている。
【0030】
これにより、吸込パイプ35の一端が取り付けられた図示しないフランジの取付方向を変えることにより、吸込パイプ35の向きを自由に変えることが可能となる。このため、当該浴槽本体10aの下部に配設される図示しない防水パンが邪魔になって吸込パイプ35の配管工事がやりづらいということがなくなる。
【0031】
インペラ43はその中心部がポンプ駆動モータ(M)47の回転軸47aに取り付けられており、ポンプ駆動モータ(M)47が回転駆動することにより回転して吸込パイプ35を介して吸水口41aより浴湯を吸い込んで吐水口41bより浴湯を吐出するようになる。ケーシングカバー44はケーシング42を密閉するために設けており、インペラ43とケーシングカバー44とはセラミックスよりなるメカニカルシール45により回転自在に密閉されている。また、ケーシングカバー44とケーシング42とはOリング46により密閉されている。
【0032】
なお、ケーシング42とインペラ43とケーシングカバー44とは変性PPE樹脂により形成されている。このため、例えポンプ駆動モータ(M)47に漏電が生じても、吸水口41aより吸い込まれた浴湯に漏電が電導することが防止できるようになる。
【0033】
図5は循環ポンプ(P)41を駆動するための回路図である。図5において、交流電源70から循環ポンプ(P)41を駆動するポンプ駆動モータ(M)47に電源を供給するために、ポンプ駆動モータ47は、回路遮断器71、フューズ72,73、補助継電器(CR)61の常開接点61a、61bおよび過電流遮断器62を介して直列に接続されている。また、これらの補助継電器(CR)61の常開接点61a、61b、過電流遮断器62およびポンプ駆動モータ47の直列回路と並列に始動用押釦スイッチ60、補助継電器(CR)61、過電流遮断器62の常閉接点62aの直列回路が接続されている。
【0034】
また、補助継電器(CR)61および過電流遮断器62の常閉接点62aの直列回路と並列に強・弱切換スイッチ57の第1接点と電磁弁50の電磁コイル50cの直列回路が接続され、強・弱切換スイッチ57の第2接点と電磁弁51の電磁コイル51cの直列回路が接続され、強・弱切換スイッチ58の第1接点と電磁弁53の電磁コイル53cの直列回路が接続され、強・弱切換スイッチ58の第2接点と電磁弁54の電磁コイル54cの直列回路が接続されている。なお、始動用押釦スイッチ60と並列に、始動用押釦スイッチ60をオンにして補助継電器(CR)61が作動した後、始動用押釦スイッチ60のオン動作を保持する補助継電器(CR)61の常開接点61cが接続されている。
【0035】
したがって、回路遮断器71が投入された状態で始動用押釦スイッチ60をオンにすることにより、交流電源70から始動用押釦スイッチ60および補助継電器(CR)61に電源が供給されて、補助継電器(CR)61が作動する。補助継電器(CR)61が作動すると、補助継電器(CR)61の各常開接点61a,61bが閉じてポンプ駆動モータ47に交流電源が供給され、ポンプ駆動モータ47が駆動して、循環ポンプ41が作動するようになる。また、補助継電器(CR)61が作動すると、補助継電器(CR)61の常開接点61cが閉じて始動用押釦スイッチ60のオン動作状態を保持する。
【0036】
ここで、過電流遮断器62は所定値以上の負荷電流(例えば、定格電流の1.5倍程度)を検出すると開動作する常閉型のスイッチであり、この過電流遮断器62が所定値以上になると開動作して、ポンプ駆動モータ47の駆動を停止させる。
【0037】
また、強・弱切換スイッチ57,58が第1の切換状態(図5においては、第1の切換状態、即ち、強を示す)においては、ソレノイドコイル50c,53cが励磁されて電磁弁50,53が動作して、大口径の吸気口50a,53aからエア(空気)が取り入れられる。一方、強・弱切換スイッチ57,58が第2の切換状態(即ち、弱の状態)においては、ソレノイドコイル51c,54cが励磁されて電磁弁51,54が動作して、小口径の吸気口51a,54aからエア(空気)が取り入れられる。
【0038】
ついで、本実施形態の気泡発生浴槽装置の動作を図1〜図5に基づいて説明する。まず、浴槽本体10aに所定量の浴湯が貯湯された状態および回路遮断器71が投入された状態において、始動用押釦スイッチ60をオンにすると、上述したようにポンプ駆動モータ(M)47が駆動し、このポンプ駆動モータ(M)47の駆動に伴い、循環ポンプ(P)41が作動する。循環ポンプ(P)41の作動に伴い、吸込口30に設けられた吸込口カバー33の複数の吸込用開口33fおよび33gより流入する浴湯はポンプ連結口31b、吸込パイプ35および吸水口41aを通して循環ポンプ(P)41内に吸い込まれる。
【0039】
循環ポンプ(P)41内に吸い込まれた浴湯は吐水口41bより吐出され、その浴湯の一部はT字状ポリブテン継手48および戻り管36を通して吸込口本体31の吐出管31c内に流入し、複数の吐出用開口33eから吐出されるようになる。このとき、略半円球状の膨出部33dに沿って吐出用開口33eから流出するようになるため、吐出管31c内に流入した浴湯が吐出用開口33eよりスムーズに吐出されるようになる。
【0040】
このため、足側噴出用開口12a,12bに設けた噴出ノズル20c,20dから噴出された気泡流中の気泡が吐出用開口33eより吐出された浴湯により押し戻されるため、吸込口30の吸込用開口33f,33gに気泡が吸い込まれるのが防止できるようになるとともに、浴湯の吸い込みと吐出がスムーズに行われるようになる。
【0041】
また、循環ポンプ(P)41の吐水口41bより吐出された浴湯の残部はT字状ポリブテン継手48および外部循環路Lの第1強送パイプ43を介して背側噴出ノズル20a,20bに強送され、また外部循環路Lの第2強送パイプ44を介して足側噴出ノズル20c,20dに強送されて、各噴出ノズル20a,20bおよび20c,20dより浴槽本体10a内の浴湯が吐出されるようになる。このとき、強・弱切換スイッチ57,58が第2の切換状態(弱)に切り換えられていると、ソレノイドコイル51c,54cが励磁されて電磁弁51,54が開状態となる。
【0042】
これにより、小口径の吸気口51aから大気中のエア(空気)が吸気管52を介して背側噴出ノズル20a,20bに取り入れ、背側噴出ノズル20a,20bに流入した浴湯は気泡流となって浴槽本体10a内に噴出する。一方、小口径の吸気口54aから大気中のエア(空気)が吸気管55を介して足側噴出ノズル20c,20dに取り入れ、足側噴出ノズル20c,20dに流入した浴湯は気泡流となって浴槽本体10a内に噴出する。
【0043】
ここで、入浴者が強・弱切換スイッチ57,58を第1の切換状態(強)に切り換えると、ソレノイドコイル50c,53cが励磁されて電磁弁50,53が開状態となり、ソレノイドコイル51c,54cが消磁されて電磁弁51,54は閉状態となる。これにより、大口径の吸気口50aから大気中のエア(空気)が吸気管52を介して背側噴出ノズル20a,20bに取り入れ、背側噴出ノズル20a,20bに流入した浴湯は大気泡流となって浴槽本体10a内に噴出する。一方、大口径の吸気口53aから大気中のエア(空気)が吸気管55を介して足側噴出ノズル20c,20dに取り入れ、足側噴出ノズル20c,20dに流入した浴湯は大気泡流となって浴槽本体10a内に噴出する。
【0044】
この場合、各吸気口50a,51a,53a,54aには吸気音を消音するフード50b,51b,53b,54bが被着されているので、これらの各吸気口50a,51a,53a,54aに大気中の空気が吸引されても吸気音が消音されて騒音を生じることがない。
【0045】
以上に説明したように、本実施形態においては、循環ポンプ(P)41内に吸い込まれた浴湯は吐水口41bより吐出され、その浴湯の一部はT字状ポリブテン継手48および戻り管36を通して吸込口本体31の吐出管31c内に流入し、複数の吐出用開口33eから吐出されるようになる。このとき、略半円球状の膨出部33dに沿って吐出用開口33eから流出するようになるため、吐出管31c内に流入した浴湯が吐出用開口33eよりスムーズに吐出されるようになる。
【0046】
このため、足側噴出用開口12a,12bに設けた噴出ノズル20c,20dから噴出された気泡流中の気泡が吐出用開口33eより吐出された浴湯により押し戻されるため、吸込口30の吸込用開口33f,33gに気泡が吸い込まれるのが防止できるようになるとともに、浴湯の吸い込みと吐出がスムーズに行われるようになる。
【図面の簡単な説明】
【図1】 本発明の気泡発生浴槽装置の概略構成を示す斜視図である。
【図2】 本発明の吸込口を示す一部破断断面図である。
【図3】 図2の吸込口カバーを示す斜視図である。
【図4】 循環ポンプユニットの構造を示す一部破断図である。
【図5】 図1の循環ポンプを駆動するための回路図である。
【符号の説明】
10…気泡発生浴槽装置、10a…浴槽本体、20a,20b…背側噴出ノズル、20c,20d…足側噴出ノズル、30…吸込口、31…吸込口本体、31a…螺合部(ねじ溝部)、31b…ポンプ連結口、31c…吐出管、32…吸込口フランジ、32a…円筒部、32b…フランジ部、32c…螺合部(ねじ山部)、33…吸込口カバー、33a…突出部、33b…外周壁、33c…筒状部、33d…膨出部、33e…吐出用開口、33f…吸込用開口、33g…吸込用開口、34…パッキング、35…吸込パイプ(吸込パイプ連結体)、36…戻り管、40…循環ポンプユニット、41…循環ポンプ、47…ポンプ駆動モータ、43…第1強送パイプ連結体、44…第2強送パイプ連結体、50,51,53,54…電磁弁、50a,51a,53a,54a…吸気口、50b,51b,53b,54b…消音フード、52,55…吸気管
[0001]
BACKGROUND OF THE INVENTION
The present invention, the bubble generating bath equipment, even to shorten the piping between the circulation pump for feeding the bathwater in the ejection nozzle of the suction port of the bathwater in Japanese and bubble flow, hardly draws bubbles from the inlet It relates to the improvement of the suction port.
[0002]
[Prior art]
The conventional bubble generating bathtub device sucks the bath water in the bathtub body from the suction port provided in the opening for the suction port of the bathtub body, and externally circulates the bath water sucked from the suction port through the external circulation path via the circulation pump. The externally circulated bath water is introduced into the jet nozzle of the jet opening provided in the bathtub body together with the air in the atmosphere taken from the air (air) intake port, and jetted into the bathtub body as a bubble flow. It is widely used as a bathtub device that allows comfortable bathing.
[0003]
In such a bubble generation bathtub device, depending on the bathing posture of the bather, a state where the bubble flow flows into the suction port along the human body and the air is sucked in occurs. When air is sucked into the suction port, the air is entangled with the impeller of the circulation pump, and the original performance of the circulation pump is deteriorated. As a result, the discharge pressure of the bubble flow is weakened, and eventually the bubble flow is not ejected. For this reason, in order to prevent such a situation, the suction port is provided at a position as far as possible from the ejection nozzle of the ejection opening.
[0004]
[Problems to be solved by the invention]
However, since the ejection nozzle of the ejection opening is disposed in the vicinity of the circulation pump, if the suction port is provided as far as possible from the ejection nozzle of the ejection opening, the suction from the suction port to the circulation pump is performed. The problem was that the piping was long. Here, when the suction pipe becomes long, there arises a problem that the cost of the suction pipe becomes high. Also, if a long suction pipe is used, it is necessary to provide a metal joint at the connection between the suction pipe and the circulation pump, and the workability and workability for piping the suction pipe become extremely poor. A long time is required for the construction of this kind of bathtub apparatus, and the work is troublesome and expensive.
[0005]
Furthermore, since the pipe resistance increases as the suction pipe becomes longer, there is a problem that the discharge pressure from the circulation pump decreases and it becomes difficult to perform comfortable bathing.
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a suction port that makes it difficult to suck air bubbles from the suction port even if the suction pipe between the suction port and the circulation pump is shortened.
[0006]
[Means for solving the problems and their effects]
In order to solve the above-mentioned problem, the present invention circulates hot water drawn in by an operation of a circulation pump that flows in from a suction port provided on a peripheral wall of a bathtub and is connected to the suction port, and circulates the suction port through the external pipe. In a bubble generating bathtub device that is made to jet into the bathtub together with air bubbles sucked into the external pipe from a jet nozzle provided on the peripheral wall of the bathtub at a position away from the fitting port, A cylindrical suction port flange assembled to the side wall of the bathtub with the inner end projecting into the bathtub, and a plurality of flanges fitted to the outer flange portion of the suction port flange and provided on the peripheral wall A suction port cover that sucks bath water in the bathtub from the suction opening and flows into the interior of the suction port flange, and the suction port flange in a state of being screwed and assembled to the inner end of the suction port flange. Bath water flowing into A suction port body having a discharge pipe that is connected to a pump connection port that flows out through the inside of the pump and a return pipe that is connected to the external pipe and that recirculates from the discharge port of the circulation pump through which the hot water is discharged. The inner end of the discharge pipe of the suction port body is fitted to a cylindrical portion formed in the central portion of the inner wall of the suction port cover, and bath water discharged from the cylindrical portion of the suction port cover is sucked into the suction port cover. A plurality of bath water discharged radially from the discharge pipe of the suction port main body is discharged to the cover portion that closes the tubular portion of the suction port cover. Forming a discharge opening, forming a substantially hemispherical bulging portion on the inner wall of the cover portion that closes the cylindrical portion of the suction port cover, and bath water discharged toward the bulging portion is the plurality of That it was allowed to flow radially from the discharge opening. There is provided a bubble generating bathtub apparatus according to symptoms.
[0007]
In the bubble generating bath apparatus configured as described above, the bathwater sucked from the suction opening of the suction port cover. Thus discharges from the discharge opening of the inlet cover back to the suction port body, for jetting bubbles in the bubbly flow which is ejected from the ejection nozzle provided in the opening is pushed back by the bathwater discharged from the discharge opening, Ru prevents the bubbles from being sucked into the suction opening of the suction port. Therefore, even with a shorter length of the suction pipe from the inlet to the circulation pump, air (air) to the impeller of the circulating pump can be prevented that the tangling, to allow sufficiently exhibit circulation pump original performance Become comfortable bathing becomes possible.
[0008]
In addition, since the length of the suction pipe from the suction port to the circulation pump can be shortened, the cost of the suction pipe is reduced, and it is not necessary to provide a metal joint at the connection between the suction pipe and the circulation pump. The workability and workability for piping the pipe are extremely good, and this type of bathtub apparatus can be constructed in a short time.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Below, one Embodiment of the bubble generation bathtub apparatus of this invention is described based on FIGS. 1 is a perspective view showing a schematic configuration of the bubble generating bathtub device of the present invention, FIG. 2 is a partially broken sectional view showing the suction port of the present invention, and FIG. 3 shows the suction port cover of FIG. FIG. 4 is a partially cutaway view showing the structure of the circulation pump unit, and FIG. 5 is a circuit diagram for driving the circulation pump of FIG.
[0014]
The bubble generating bathtub device 10 of the present invention has a bathtub main body 10a formed in a box shape with an upper surface opening, and back-side ejection openings 11a and 11b provided on the front wall 11 of the bathtub main body 10a. Two back side jet nozzles 20a and 20b which are arranged to project and two foot side jets which are arranged to project outward from the rear wall 12 to the foot side ejection openings 12a and 12b provided on the rear wall 12. Nozzles 20c, 20d, a suction port 30 provided projecting outward from the side wall 13 into a suction port opening 13a provided on the side wall 13 of the bathtub body 10a, a circulation pump unit 40, and an outer peripheral edge of the bathtub body 10a It is composed of an external circulation path L of the disposed bath water and an intake system composed of electromagnetic valves 50, 51, 52, 53 and the like.
[0015]
The back-side jet nozzles 20a and 20b are provided at a higher position than the foot-side jet nozzles 20c and 20d so that the bubble jet can be reliably applied to predetermined portions of the bather's back and foot, respectively. Yes. Moreover, the suction inlet 30 provided in the lower part of the side wall 13 of the bathtub main body 10a is provided in the low position rather than the foot side ejection nozzles 20c and 20d.
[0016]
The suction port 30 is disposed in the vicinity of the foot-side jet nozzles 20c and 20d. The suction port 30 is for the suction port body 31 and the suction port provided on the side wall 13 of the bathtub body 10a. A suction port flange 32 fixed to the opening 13a and a suction port cover 33 having a plurality of openings are provided. The suction port main body 31 includes a screw groove 31a that is screwed into the suction port flange 32, and a pump connection port 31b that is connected to a water suction port 41a (see FIG. 4) of a circulation pump (P) 41 of the circulation pump unit 40 described later. And a discharge pipe 31c that is integrally formed at a substantially central portion of the suction port body 31 and communicates with the water discharge port 41b (see FIG. 4) of the circulation pump (P) 41.
[0017]
The suction port flange 32 includes a cylindrical portion 32a and a flange portion 32b extending vertically from the cylindrical portion 32a. In order to fix the suction port main body 31 to the side wall 13 of the bathtub main body 10a, the tip of the cylindrical portion 32a. The portion is provided with a screw thread portion 32c for screwing the suction port body 31 into place. Thus, the suction port body 31 is disposed outside the suction port opening 13a provided on the side wall 13 of the bathtub body 10a via the rubber packing 34, and the suction port flange 32 is provided on the side wall 13. A suction port is formed by arranging a thread portion 32c provided in the suction port flange 32 in a thread groove portion 31a provided in the suction port main body 31 and disposed inside the opening 13a via a rubber packing 34. The main body 31 comes to be fixed to the side wall 13 of the bathtub main body 10a.
[0018]
The suction port cover 33 has a projecting portion 33 a whose central portion projects outward, an outer peripheral wall 33 b that is locked to the outer peripheral wall of the flange portion 32 b of the suction port flange 32, and the discharge pipe 31 c of the suction port main body 31. And a cylindrical portion 33c formed to cover the outer peripheral wall of the tip portion. A substantially semi-spherical bulging portion 33 d bulging inward of the suction port cover 33 is provided on the inner surface side of the protruding portion 33 a in the cylindrical portion 33 c of the suction port cover 33. The side wall of the protrusion 33a of the suction port cover 33 includes a plurality of discharge openings 33e, a plurality of suction openings 33f on the upper wall of the outer peripheral wall 33b, and a plurality of suction openings on the side wall of the outer peripheral wall 33b. Each opening 33g is provided.
[0019]
The external circulation path L disposed on the outer peripheral edge of the bathtub body 10a includes a circulation pump (P) 41 for circulating bath water and a pump drive motor (M) 47 for driving the circulation pump (P) 41. A circulation pump unit 40 is provided. The water suction port 41a (see FIG. 4) of the circulation pump (P) 41 is a suction pipe coupling body 35 (a polybutene pipe and an L-shaped polybutene joint integrated by heat welding, hereinafter referred to as a suction pipe (suction pipe) 35). The other end of the suction pipe 35 is connected to the pump connection port 31b of the suction port 30.
[0020]
A T-shaped polybutene joint 47 is connected to the water discharge port 41b (see FIG. 4) of the circulation pump (P) 41. One end of the T-shaped polybutene joint 47 is connected to the return pipe 36, and a T-shape. The other end of the polybutene joint 47 is a first forced-feed pipe coupling body 43 (a polybutene pipe, an L-shaped polybutene joint, and a T-shaped polybutene joint are integrated by heat welding; hereinafter referred to as a first forced-feed pipe 43). Are connected in communication with the back-side jet nozzles 20a and 20b. T-shaped polybutene joints 45 and 46 are connected in communication with the first force-feeding pipe 43, and a second force-feeding pipe coupling body 44 (polybutene pipe and L-shape is connected in communication with these joints 45 and 46). The polybutene joint and the T-shaped polybutene joint are integrated by thermal welding, and are connected to the foot-side jet nozzles 20c and 20d via the second forced feed pipe 44).
[0021]
Thereby, by driving the pump drive motor (M) 47, the bath water flowing in from the plurality of suction openings 33f and 33g of the suction port cover 33 provided in the suction port 30 is transferred to the pump connection port 31b and the suction pipe 35. Through the suction port 41a of the circulation pump (P) 41. On the other hand, a part of the bath water discharged from the water discharge port 41b of the circulation pump (P) 41 flows into the discharge pipe 31c of the suction port body 31 through the T-shaped polybutene joint 48 and the return pipe 36, and is used for a plurality of discharges. The ink is discharged from the opening 33e.
[0022]
At this time, since the water flows out from the discharge opening 33e along the substantially semi-spherical bulging portion 33d, the bath water flowing into the discharge pipe 31c is discharged smoothly from the discharge opening 33e. . For this reason, since the bubbles in the bubble flow ejected from the ejection nozzles 20c and 20d provided in the foot-side ejection openings 12a and 12b are pushed back by the bath water ejected from the ejection opening 33e, Air bubbles can be prevented from being sucked into the openings 33f and 33g, and bath water can be sucked and discharged smoothly.
[0023]
Further, the remaining portion of the bath water discharged from the water discharge port 41b of the circulation pump (P) 41 is transferred to the back-side jet nozzles 20a and 20b via the T-shaped polybutene joint 48 and the first forced feed pipe 43 of the external circulation path L. The hot water is forcibly sent to the foot-side jet nozzles 20c and 20d through the second strong feed pipe 44 of the external circulation path L, and the bath water in the bathtub body 10a is sent from the jet nozzles 20a, 20b and 20c and 20d. Is discharged.
[0024]
On the other hand, the intake system includes a pair of solenoid valves 50 and 51 disposed in the vicinity of the upper part of the back-side jet nozzles 20a and 20b outside the bathtub body 10a, and the pair of solenoid valves 50 and 51 and the back-side jet nozzle 20a. , 20b, a pair of solenoid valves 53, 54 disposed in the vicinity of the upper portions of the foot-side ejection nozzles 20c, 20d outside the bathtub body 10a, and a pair of these solenoid valves 53, 54 It is comprised from the intake pipe 55 which connects the foot side ejection nozzles 20c and 20d.
[0025]
The other end of the solenoid valve 50 not connected to the intake pipe 52 is provided with a large-diameter intake port 50a that opens into the atmosphere, and a hood 50b that silences intake sound is attached to the intake port 50a. The other end of the solenoid valve 51 that is not connected to the intake pipe 52 is provided with a small-diameter intake port 51a that opens into the atmosphere, and a hood 51b that silences intake sound is attached to the intake port 51a. The other end of the solenoid valve 53 that is not connected to the intake pipe 55 is provided with a large-diameter intake port 53a that opens into the atmosphere, and a hood 53b that silences intake sound is attached to the intake port 53a. The other end of the solenoid valve 54 not connected to the intake pipe 55 is provided with a small-diameter intake port 54a that opens into the atmosphere, and a hood 54b that silences intake sound is attached to the intake port 54a.
[0026]
As described above, the back-side jet nozzles 20a and 20b and the intake ports 50a and 51a communicate with each other via the electromagnetic valves 50 and 51, and the foot-side jet nozzles 20c and 20d and the intake ports 53a and 54a communicate with the electromagnetic valve 53. , 54, when bath water is ejected from each of the ejection nozzles 20a, 20b, air is sucked in from the intake port 50a or the intake port 51a by the ejection output, and the air is ejected from the back-side ejection nozzle. It flows into 20a, 20b. Further, when bath water is ejected from each of the ejection nozzles 20c and 20d, air is sucked in from the intake port 53a or the intake port 54a by the spray output, and the air flows into the foot side ejection nozzles 20c and 20d. As a result, the bath water jetted from the jet nozzles 20a, 20b, 20c, and 20d becomes a bubble flow and jetted from the jet nozzles 20a, 20b, 20c, and 20d.
[0027]
The solenoid valves 50, 51, 53, 54 are normally closed solenoid valves that are opened based on the switching state of the strong / weak selector switches 57, 58 (see FIG. 5). Therefore, for example, when the strong / weak selector switches 57 and 58 are selected to be strong (intake air from the intake ports 50a and 53a having large apertures), the electromagnetic valves 50 and 53 are opened. A large volume of air flows from the intake ports 50a and 53a into the back-side jet nozzles 20a and 20b and the foot-side jet nozzles 20c and 20d, so that the hot water becomes a large bubble flow and the back-side jet nozzles 20a and 20b and the foot-side jet. The nozzles 20c and 20d are ejected vigorously into the bathtub body 10a.
[0028]
4 is a partially broken view showing the structure of the circulation pump unit 40, FIG. 4 (a) is a front view, and FIG. 4 (b) is a side view thereof. The circulation pump unit 40 includes a circulation pump (P) 41 that circulates hot water and a pump drive motor (M) 47 that drives the circulation pump (P) 41. The circulation pump (P) 41 is a spiral centrifugal pump and includes a casing 42, an impeller 43, and a casing cover 44.
[0029]
A water discharge port 41 b is disposed on the upper portion of the casing 42. Further, a square flange portion 42a is provided on the lower side portion of the casing 42, and a water inlet 41a is disposed at the center thereof, and one end of the suction pipe 35 is provided at four corners of the flange portion 42a. Four screw holes 42b, 42b, 42b, 42b for attaching the attached flange (not shown) are provided.
[0030]
Thereby, the direction of the suction pipe 35 can be freely changed by changing the mounting direction of a flange (not shown) to which one end of the suction pipe 35 is attached. For this reason, the waterproofing pan (not shown) disposed in the lower portion of the bathtub body 10a does not obstruct the piping work of the suction pipe 35.
[0031]
The impeller 43 has a central portion attached to a rotating shaft 47a of a pump drive motor (M) 47, and rotates when the pump drive motor (M) 47 is driven to rotate, through a suction pipe 35 and from a water inlet 41a. The bath water is sucked in and discharged from the spout 41b. The casing cover 44 is provided to seal the casing 42, and the impeller 43 and the casing cover 44 are rotatably sealed by a mechanical seal 45 made of ceramics. The casing cover 44 and the casing 42 are sealed by an O-ring 46.
[0032]
The casing 42, the impeller 43, and the casing cover 44 are made of a modified PPE resin. For this reason, even if a leakage occurs in the pump drive motor (M) 47, it is possible to prevent the leakage from conducting to the bath water sucked from the water inlet 41a.
[0033]
FIG. 5 is a circuit diagram for driving the circulation pump (P) 41. In FIG. 5, in order to supply power from an AC power supply 70 to a pump drive motor (M) 47 that drives a circulating pump (P) 41, the pump drive motor 47 includes a circuit breaker 71, fuses 72 and 73, and an auxiliary relay. They are connected in series via normally open contacts 61a, 61b of (CR) 61 and an overcurrent breaker 62. In addition, the start pushbutton switch 60, the auxiliary relay (CR) 61, and the overcurrent interruption in parallel with the series circuit of the normally open contacts 61a and 61b, the overcurrent breaker 62 and the pump drive motor 47 of the auxiliary relay (CR) 61. A series circuit of normally closed contacts 62a of the device 62 is connected.
[0034]
A series circuit of the first contact of the strong / weak switch 57 and the electromagnetic coil 50c of the solenoid valve 50 is connected in parallel with the series circuit of the normally closed contact 62a of the auxiliary relay (CR) 61 and the overcurrent breaker 62, A series circuit of the second contact of the strong / weak switch 57 and the electromagnetic coil 51c of the solenoid valve 51 is connected, and a series circuit of the first contact of the strong / weak switch 58 and the electromagnetic coil 53c of the solenoid valve 53 is connected, A series circuit of the second contact of the strong / weak switch 58 and the electromagnetic coil 54c of the electromagnetic valve 54 is connected. In parallel with the start push button switch 60, after the start push button switch 60 is turned on and the auxiliary relay (CR) 61 is activated, the auxiliary relay (CR) 61 that keeps the start operation of the start push button switch 60 is always connected. An open contact 61c is connected.
[0035]
Therefore, by turning on the start pushbutton switch 60 with the circuit breaker 71 turned on, power is supplied from the AC power supply 70 to the start pushbutton switch 60 and the auxiliary relay (CR) 61, and the auxiliary relay ( CR) 61 is activated. When the auxiliary relay (CR) 61 is activated, the normally open contacts 61a and 61b of the auxiliary relay (CR) 61 are closed and AC power is supplied to the pump drive motor 47, and the pump drive motor 47 is driven to circulate the pump 41. Will be activated. Further, when the auxiliary relay (CR) 61 is activated, the normally open contact 61c of the auxiliary relay (CR) 61 is closed, and the start pushbutton switch 60 is kept in the ON operation state.
[0036]
Here, the overcurrent circuit breaker 62 is a normally closed type switch that opens when a load current (for example, about 1.5 times the rated current) greater than a predetermined value is detected. If it becomes above, it will open and the drive of the pump drive motor 47 will be stopped.
[0037]
Further, when the strong / weak selector switches 57 and 58 are in the first switching state (in FIG. 5, the first switching state, ie, indicating high), the solenoid coils 50c and 53c are excited and the solenoid valves 50 and 53 are excited. 53 operates, and air (air) is taken in from the large-diameter intake ports 50a and 53a. On the other hand, when the strong / weak selector switches 57 and 58 are in the second switching state (ie, the weak state), the solenoid coils 51c and 54c are excited to operate the solenoid valves 51 and 54, and the small-diameter intake port is operated. Air (air) is taken in from 51a and 54a.
[0038]
Next, the operation of the bubble generating bathtub device of this embodiment will be described with reference to FIGS. First, when the start pushbutton switch 60 is turned on in a state where a predetermined amount of hot water is stored in the bathtub body 10a and in a state where the circuit breaker 71 is inserted, the pump drive motor (M) 47 is turned on as described above. When the pump drive motor (M) 47 is driven, the circulation pump (P) 41 is operated. With the operation of the circulation pump (P) 41, the bath water flowing in from the plurality of suction openings 33f and 33g of the suction port cover 33 provided in the suction port 30 passes through the pump connection port 31b, the suction pipe 35 and the water suction port 41a. It is sucked into the circulation pump (P) 41.
[0039]
The bath water sucked into the circulation pump (P) 41 is discharged from the water discharge port 41b, and part of the bath water flows into the discharge pipe 31c of the suction port body 31 through the T-shaped polybutene joint 48 and the return pipe 36. Then, the liquid is discharged from the plurality of discharge openings 33e. At this time, since the water flows out from the discharge opening 33e along the substantially semi-spherical bulging portion 33d, the bath water flowing into the discharge pipe 31c is discharged smoothly from the discharge opening 33e. .
[0040]
For this reason, since the bubbles in the bubble flow ejected from the ejection nozzles 20c and 20d provided in the foot-side ejection openings 12a and 12b are pushed back by the bath water ejected from the ejection opening 33e, Air bubbles can be prevented from being sucked into the openings 33f and 33g, and bath water can be sucked and discharged smoothly.
[0041]
Further, the remaining portion of the bath water discharged from the water discharge port 41b of the circulation pump (P) 41 is transferred to the back-side jet nozzles 20a and 20b via the T-shaped polybutene joint 48 and the first forced feed pipe 43 of the external circulation path L. The hot water is forcibly sent to the foot-side jet nozzles 20c and 20d through the second strong feed pipe 44 of the external circulation path L, and the bath water in the bathtub body 10a is sent from the jet nozzles 20a, 20b and 20c and 20d. Is discharged. At this time, if the strong / weak selector switches 57 and 58 are switched to the second switching state (weak), the solenoid coils 51c and 54c are excited and the solenoid valves 51 and 54 are opened.
[0042]
As a result, air in the atmosphere (air) is taken into the back-side jet nozzles 20a and 20b via the intake pipe 52 from the small-diameter intake port 51a, and the bath water flowing into the back-side jet nozzles 20a and 20b It becomes jetted in the bathtub main body 10a. On the other hand, air in the atmosphere (air) is taken into the foot-side jet nozzles 20c and 20d via the intake pipe 55 from the small-diameter suction port 54a, and the bath water flowing into the foot-side jet nozzles 20c and 20d becomes a bubble flow. And jetted into the bathtub body 10a.
[0043]
When the bather switches the strong / weak switch 57, 58 to the first switching state (strong), the solenoid coils 50c, 53c are excited to open the solenoid valves 50, 53, and the solenoid coils 51c, 54c is demagnetized and the solenoid valves 51 and 54 are closed. As a result, air in the atmosphere (air) from the large-diameter intake port 50a is taken into the back-side jet nozzles 20a and 20b via the intake pipe 52, and the bath water flowing into the back-side jet nozzles 20a and 20b flows into the large bubble flow. Then, it is ejected into the bathtub body 10a. On the other hand, air in the atmosphere (air) from the large-diameter intake port 53a is taken into the foot-side jet nozzles 20c and 20d via the intake pipe 55, and the bath water flowing into the foot-side jet nozzles 20c and 20d is a large bubble flow. It becomes jetted in the bathtub main body 10a.
[0044]
In this case, since the hoods 50b, 51b, 53b, and 54b that mute the intake sound are attached to the intake ports 50a, 51a, 53a, and 54a, the atmosphere is placed in the intake ports 50a, 51a, 53a, and 54a. Even if the air inside is sucked, the intake sound is muted and no noise is generated.
[0045]
As described above, in the present embodiment, the bath water sucked into the circulation pump (P) 41 is discharged from the water discharge port 41b, and part of the bath water is a T-shaped polybutene joint 48 and a return pipe. 36 flows into the discharge pipe 31c of the suction port main body 31 and is discharged from the plurality of discharge openings 33e. At this time, since the water flows out from the discharge opening 33e along the substantially semispherical bulging portion 33d, the bath water flowing into the discharge pipe 31c is discharged smoothly from the discharge opening 33e. .
[0046]
For this reason, since the bubbles in the bubble flow ejected from the ejection nozzles 20c and 20d provided in the foot-side ejection openings 12a and 12b are pushed back by the bath water ejected from the ejection opening 33e, Air bubbles can be prevented from being sucked into the openings 33f and 33g, and bath water can be sucked and discharged smoothly.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration of a bubble generating bathtub device of the present invention.
FIG. 2 is a partially broken sectional view showing a suction port of the present invention.
FIG. 3 is a perspective view showing a suction port cover of FIG. 2;
FIG. 4 is a partially cutaway view showing the structure of the circulation pump unit.
FIG. 5 is a circuit diagram for driving the circulation pump of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Bubble generation bathtub apparatus, 10a ... Bath body, 20a, 20b ... Back side ejection nozzle, 20c, 20d ... Foot side ejection nozzle, 30 ... Suction port, 31 ... Suction port body, 31a ... Screwing part (screw groove part) 31b ... pump connection port, 31c ... discharge pipe, 32 ... suction port flange, 32a ... cylindrical part, 32b ... flange part, 32c ... screwing part (thread part), 33 ... suction port cover, 33a ... projection part, 33b ... outer peripheral wall, 33c ... cylindrical part, 33d ... bulge part, 33e ... discharge opening, 33f ... suction opening, 33g ... suction opening, 34 ... packing, 35 ... suction pipe (suction pipe coupling body), 36 ... Return pipe, 40 ... Circulation pump unit, 41 ... Circulation pump, 47 ... Pump drive motor, 43 ... First strong feed pipe connection, 44 ... Second strong feed pipe connection, 50, 51, 53, 54 ... Solenoid valve, 50a 51a, 53a, 54a ... suction port, 50b, 51b, 53b, 54b ... silencer hood, 52 and 55 ... intake pipe

Claims (1)

浴槽の周壁に設けた吸込口から流入して同吸込口に連結した循環ポンプの作動により吸込まれた浴湯を外部配管を通して循環させて前記吸込口から離れた位置にて前記浴槽の周壁に設けた噴出ノズルから前記外部配管に吸引される空気の気泡とともに前記浴槽内に噴出させるようにした気泡発生浴槽装置において、
前記吸込口に嵌合してその内端部を前記浴槽内に突出させた状態で同浴槽の側壁に組付けた筒状の吸込口フランジと、該吸込口フランジの外側フランジ部に嵌合されてその周壁に設けた複数の吸込用開口から前記浴槽内の浴湯を吸込んで前記吸込口フランジの内部に流入させる吸込口カバーと、前記吸込口フランジの内端部に螺合して組付けた状態にて同吸込口フランジに流入した浴湯がその内部を通して流出するポンプ連結口と前記外部配管に連結した戻り管に接続されて前記循環ポンプの吐水口から還流する浴湯がその内部を通して吐出する吐出管を有する吸込口本体とを備え、前記吸込口カバーの内壁中央部に形成した筒状部に前記吸込口本体の吐出管の内端を嵌合して、同吸込口カバーの筒状部から吐出する浴湯が同吸込口カバーの吸込用開口に吸込まれる浴湯の気泡流を押し戻すようにし、前記吸込口カバーの筒状部を閉塞する覆蓋部分に、前記吸込口本体の吐出管から吐出する浴湯が放射状に流出する複数の吐出開口を形成し、前記吸込口カバーの筒状部を閉塞する前記覆蓋部分の内壁に略半球状の膨出部を形成して、この膨出部に向けて吐出した浴湯が前記複数の吐出開口から放射状に流出するようにしたことを特徴とする気泡発生浴槽装置。
Provided on the peripheral wall of the bathtub at a position away from the suction port by circulating the hot water drawn from the suction port provided on the peripheral wall of the bathtub and circulated through an external pipe through the operation of a circulation pump connected to the suction port. In the bubble generating bathtub apparatus that is made to jet into the bathtub together with air bubbles sucked into the external pipe from the jet nozzle,
Fitted to the suction port flange and a cylindrical suction port flange assembled to the side wall of the bathtub with its inner end protruding into the bathtub, and to the outer flange portion of the suction port flange A suction port cover that sucks bath water in the bathtub from a plurality of suction openings provided on the peripheral wall and flows into the inside of the suction port flange, and is screwed into the inner end of the suction port flange and assembled. In this state, the bath water flowing into the suction flange is connected to a pump connection port through which the bath water flows out and a return pipe connected to the external pipe, and the bath water flowing back from the discharge port of the circulation pump passes through the interior. A suction port main body having a discharge pipe for discharging, and fitting an inner end of the discharge pipe of the suction port main body to a cylindrical portion formed in a central portion of the inner wall of the suction port cover, The bath water discharged from the shaped part is To push back the bubble flow of bath water to be sucked into the write opening, the covering portion for closing the tubular portion of the suction port cover, a plurality of bathwater to be discharged from the discharge pipe of the suction port body flows out radially A plurality of bath water discharged toward the bulging portion is formed on the inner wall of the cover portion that closes the cylindrical portion of the suction port cover. A bubble generating bathtub apparatus characterized by flowing radially from the discharge opening .
JP33333197A 1997-12-03 1997-12-03 Bubble generation bath equipment Expired - Fee Related JP3989067B2 (en)

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JP33333197A JP3989067B2 (en) 1997-12-03 1997-12-03 Bubble generation bath equipment

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JPH11164864A JPH11164864A (en) 1999-06-22
JP3989067B2 true JP3989067B2 (en) 2007-10-10

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KR101086241B1 (en) 2009-02-03 2011-11-23 화이트스파(주) Whirlpool bath

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