JP3964720B2

JP3964720B2 - Washing machine

Info

Publication number: JP3964720B2
Application number: JP2002107122A
Authority: JP
Inventors: 弘烈李; 揆彩李; 相龍沈
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2001-12-24
Filing date: 2002-04-09
Publication date: 2007-08-22
Anticipated expiration: 2022-04-09
Also published as: RU2216615C1; JP2003190697A; CN1268801C; RU2002110466A; CN1428475A

Description

【０００１】
【発明の属する技術分野】
本発明は洗濯機に係り、さらに詳しくは上昇水流ガイドと脱水軸支持台とを備えた脱水槽の構造を改善して上昇水流の量を増大させ洗濯物の損傷を防止できると共に、脱水軸支持台を脱水槽に簡便に取り付けるようにした洗濯機に関する。
【０００２】
【従来の技術】
一般に洗濯機は、洗濯水が張られた円筒状の回転槽を回転させ洗濯物を洗濯する装置であって、このような洗濯機の種類には回転槽を水平に配してこの回転槽が水平軸について正逆方向に回転する際洗濯物が回転槽の内周面に沿って上向きに持ち上げられてから落下させることにより洗濯物を洗濯する方式であるドラム洗濯機と、内部にパルセータを備えた回転槽を垂設してこの回転槽が垂直軸について正逆方向に回転する際パルセータにより発生する水流により洗濯物を洗濯する方式である垂直軸洗濯機とがある。
【０００３】
本発明は垂直軸洗濯機に係り、図１には従来の技術による脱水槽を備えた垂直軸洗濯機の内部構造が示されている。同図によれば、従来の垂直軸洗濯機は、外観をなすハウジング１と、ハウジング１の内部に垂設され洗濯水を張る円筒状の水槽２と、水槽２の内部に回転自在に設けられ外周面に多数の脱水穴３ｃが形成された円筒状の脱水槽(回転槽)３と、脱水槽３の内側の下部に設けられ洗濯水流を発生させるパルセータ４と、水槽２の外側の下部に設けられパルセータ４と脱水槽３を回転させる駆動モータ５と、動力伝達装置６と、を備える。
【０００４】
ハウジング１の上部は脱水槽３に洗濯物を入れたり取り出せるよう開放されており、該開放されたハウジング１の上部には脱水槽３を開放または閉鎖するためのドア７がヒンジ結合されている。また、水槽２の下部には洗濯が完了して水槽２に張られた洗濯水を外部に排出するためにハウジング１の外部に延びる排水ホース８が設けられている。
【０００５】
従来の脱水槽３は脱水槽３とパルセータ４をそれぞれ動力伝達装置６の脱水軸６ａと洗濯軸６ｂに取り付けるためその中心部が開放されている底板３ａと、該底板３ａの外周縁に螺合される円筒状の胴体部３ｂと、を備えてなる。
【０００６】
脱水槽３の胴体部３ｂの内壁面には洗い行程時パルセータ４の正逆回転により発生する水流を脱水槽３の上部に誘導して脱水槽３の上部から洗濯物に向けて洗濯水を落下することにより洗濯水に含まれた洗剤の溶解を促進し、洗濯物に衝撃を加えて洗濯力を増大させうるようにする上昇水流ガイド１０が設けられている。前記上昇水流ガイド１０の上端には洗濯水に含まれた毛羽のような異物を濾し出すための布収集袋１１が付着されている。
【０００７】
図２は図１に示された従来の技術による脱水槽の底板と脱水軸支持台の取付構造を示した斜視図である。
【０００８】
同図によれば、従来の脱水槽３の底板３ａには動力伝達装置６の脱水軸６ａ(図１参照)を底板３ａに取り付けるための脱水軸支持台１５が設けられる。前記脱水軸支持台１５は脱水軸６ａの上端を挿入するための挿入穴１６ａが形成されているハブ１６と、該ハブ１６から外向きに延長形成され、その端部に締結穴１７ａが形成されている複数のアーム１７を備えてなる。ハブ１６の挿入穴１６ａは略矩形により形成され脱水軸６ａがしっかり挟み込まれるようにして脱水軸６ａの回転により脱水槽３が回転できるようにする。
【０００９】
前述したように構成された脱水軸支持台１５が取り付けられる脱水槽３の底板３ａはその中心部に開口部１８が形成され、該開口部１８を通して脱水軸６ａの内部から延びてパルセータ４に軸着される洗濯軸６ｂ(図１参照)が貫通されると同時に、脱水行程時脱水槽３に張られた洗濯水を外に放出するようにする。また、前記開口部１８を取り囲む底板３ａの縁部は平らに形成され、この縁部にはアーム１７に形成された締結穴１７ａに対応する複数の締結穴１９が形成され前記締結穴１７ａ、１９を通してボルト２０が締結されることにより脱水軸支持台１５は脱水槽の底板３ａに取り付けられる。
【００１０】
図３は図１に示した従来の技術による脱水槽と上昇水流ガイドの取付構造を示した図であって、図３ａは上昇水流ガイドが脱水槽から分離された状態を示した図であり、図３ｂは上昇水流ガイドが脱水槽に組み立てられた状態を示した図である。
【００１１】
図３ａに示した通り、従来の脱水槽３にはパルセータ４により発生する水流を脱水槽３の上部に誘導するために上昇水流ガイド１０が別に作製され脱水槽３の胴体部３ｂの内壁面に縦方向に設けられる。上昇水流ガイド１０は上部と下部、そして後部が開放されるよう横断面が略“Ｃ”字形よりなり、脱水槽３の胴体部３ｂに形成されたネジ穴３ｄに対応するようその内壁面に一定間隔をなして形成された雌ネジ部(図示せず)を備え、多数のネジ２０により脱水槽３の胴体部３ｂに取り付けられる。
【００１２】
図３ｂに示した通り、上昇水流ガイド１０が脱水槽３の内壁面に螺合された状態で上昇水流ガイド１０の下端と脱水槽３の底板３ａとの間には洗濯水を流入させるための洗濯水供給口２１が形成され、上昇水流ガイド１０の上端には洗濯水を排出させるための排水口２２が形成される。
【００１３】
前述したように構成された従来の脱水槽３と上昇水流ガイド１０を備えた垂直軸洗濯機において、脱水槽３に洗濯物を投入した後に洗濯機を作動させれば、水槽２に水が供給されてから駆動モータ５と動力伝達装置６によりパルセータ４が正逆回転する。このようなパルセータ４の回転により洗濯水流が発生して洗濯物が洗濯水流と共に流動するようになり、また脱水槽３と摩擦されることにより洗濯が行われる。この際、パルセータ４により発生した洗濯水流の一部は上昇水流ガイド１０の洗濯水供給口２１を介して流入され脱水槽３の上部に上昇された後、上昇水流ガイド１０の排水口２２を通過して洗濯水に含まれた毛羽などは布収集袋１１により濾され、上昇した洗濯水は脱水槽３の下部に落下して洗濯物の洗濯を促進する。
【００１４】
しかし、前述したように作動する垂直軸洗濯機において、従来の脱水槽３の底板３ａは脱水軸支持台１５とボルト締結される構造でなることによりボルトを締結するために相当な作業工数が所要され、また長期間の使用によりボルトの緩みが発生して脱水行程時に振動を発生する短所がある。
【００１５】
また、従来の脱水槽３の底板３ａは平らな形状よりなっていて構造的に十分な強度を維持し難い短所がある。
【００１６】
また、従来の上昇水流ガイド１０は、脱水槽３の胴体部３ｂに螺合される構造よりなり脱水槽３に完全に密着できず、これにより上昇水流ガイド１０と脱水槽３の取付面の間には構造的に隙間ができることにより洗い行程時上昇水流ガイド１０に沿って上昇する洗濯水の一部が上昇水流ガイド１０と脱水槽３との隙間を通して漏れ出て、上昇水流ガイド１０を介して十分な量の洗濯水が上昇されなくなる。従って、従来の洗濯機は上昇水流ガイド１０の上部から落下する落下水流が不十分なので洗濯力が落ちるようになり、異物が布収集袋１１により効率よく濾されなくて洗濯効率が劣化する。
【００１７】
また、従来の洗濯機は脱水槽３の底板３ａの縁部には上昇水流ガイド１０の下端と共に円周方向に凸条部２３が形成される構造を有することにより、円環をなして形成される凸条部２３の内部に異物が詰まるようになるのみならず、洗い行程時洗濯物が前記凸条部２３に摩擦され損傷する短所がある。
【００１８】
そして、従来の洗濯機は、通常脱水槽３の胴体部３ｂと上昇水流ガイド１０が相異なる材質で構成されることにより高温の洗濯水を使用する場合に熱膨張係数の相違による上昇水流ガイド１０の変形が発生して隙間がさらに大きくなるため、この隙間に異物が詰まって洗濯完了後に洗濯物を汚染させるのみならず、洗い及び脱水行程時その隙間に洗濯物が詰まって洗濯物が損傷する短所がある。
【００１９】
さらに、従来の洗濯機は脱水槽３の底板３ａと脱水軸支持台１５も相異なる材質で作られて材質の相違による電位差により腐食が発生して洗濯物を汚染させる短所がある。
【００２０】
【発明が解決しようとする課題】
本発明は前述した従来の技術の問題点を解決するために案出されたもので、その目的は脱水槽の底板と脱水軸支持台の取付構造を改善して脱水軸支持台を脱水槽に簡便に取り付けられるようにした洗濯機を提供するところにある。
【００２１】
本発明の他の目的は脱水槽と脱水軸支持台の材質を同一にして電位差による腐食を防止するようにした洗濯機を提供するところにある。
【００２２】
本発明のさらに他の目的は脱水槽の底板の構造を改善して脱水槽の強度を向上させた洗濯機を提供するところにある。
【００２３】
本発明のさらに他の目的は上昇水流ガイドを脱水槽に密着結合させて十分な量の洗濯水を上向きに案内して洗濯力をアップすると共に、異物の濾しを効率よく行って洗濯物の損傷を防止できるようにした洗濯機を提供するところにある。
【００２４】
本発明のさらに他の目的は脱水槽の底板に洗濯水供給穴と排水穴を形成させ上昇水流ガイドに洗濯水を円滑に案内できるようにした洗濯機を提供するところにある。
【００２５】
本発明のさらに他の目的は脱水槽と上昇水流ガイドの材質を同一にして高温の洗濯水により上昇水流ガイドが変形されないようにした洗濯機を提供するところにある。
【００２６】
【課題を解決するための手段】
前述した目的を達成するための本発明は、洗濯物を脱水する脱水槽と、該脱水槽の内部に設けられ洗濯水流を発生させるパルセータと、前記脱水槽を回転させる脱水軸と、該脱水軸を前記脱水槽に取り付ける脱水軸支持台を備えた洗濯機において、前記脱水槽は底板と前記底板の外周縁から上向きに一定長さ延びた胴体部を備え、前記底板は中心部と前記中心部の外周縁から一定高さ突設されるショルダ部が一体に形成されてなり、前記脱水軸支持台はその内部に前記脱水軸が挿入されるよう挿入穴が形成されてなり、前記底板の中心部には前記脱水軸支持台を前記底板に取り付ける取付手段が前記底板と一体に形成されていることを特徴とする。
【００２７】
前記取付手段は、前記脱水軸支持台を収める前記挿入穴を形成するよう前記底板の中心部の中央から下向きに一定長さ延長形成される筒状の支持壁と、該支持壁の下端に形成され前記脱水軸支持台を取り付けるフック部とから構成される。
【００２８】
また、前記脱水軸支持台の下端には前記脱水軸が挿入される前記挿入穴より大径のフック溝が設けられており、前記フック部が前記支持壁から前記フック溝の内周面に折曲結合されることにより前記脱水軸支持台を前記脱水槽の底板に取り付ける。
【００２９】
そして、前記支持壁の上端には前記脱水軸支持台の上面を覆うよう前記支持壁の内側に延長形成された少なくとも一つの係止突起が設けられ、前記脱水軸支持台が上方に離脱されることを防止する。
【００３０】
前記の脱水槽の底板には洗濯水が前記脱水槽を通して下向きに流出されるようにする複数の排水穴と、前記底板の強度が補強されるようにする複数の凹凸部が形成されている。
【００３１】
前記脱水槽の胴体部には前記パルセータにより発生する水流を前記脱水槽の上部に誘導するための上昇水流ガイドが設けられ、前記脱水槽の底板には前記上昇水流ガイドに洗濯水流を流入させるための洗濯水供給穴と排水穴が一体に形成されている。
【００３２】
前記洗濯水供給穴は、前記底板の中心部の外周縁と前記底板のショルダ部の下部にかけて開けられており、前記排水穴は前記ショルダ部の上部に穿孔されており、前記上昇水流ガイドの下端部には前記排水穴の縁部に密着されるようフック部材が一体に形成されている。
【００３３】
前記フック部材は、前記上昇水流ガイドの下端から水平に延びた水平部と、該水平部から下向きに延びた垂直部を備え、前記排水穴には前記フック部材の垂直部に対応して下向きに延びた凸条部が形成され、前記フック部材の水平部と垂直部がそれぞれ前記排水穴の縁部と前記凸条部に密着された状態で前記垂直部の下端が前記凸条部の下端の内側に折り曲げられることにより前記フック部材が前記排水穴に取り付けられる。
【００３４】
また、前記脱水槽の胴体部には縦方向に２列をなして配された複数のスロットが形成されており、前記上昇水流ガイドは前面部と、該前面部から後方に一定長さ延長形成された両側面部よりなり、前記両側面部の端部には前記複数のスロットに対応するよう縦方向に一定間隔離隔配置された複数の結合突起が後方に向けて延長形成され、前記複数の結合突起が前記各スロットに挿入された状態で前記脱水槽の外壁面に密着されるよう折り曲げられることにより前記上昇水流ガイドが前記脱水槽の胴体部に取り付けられるようにする。
【００３５】
前記洗濯水供給穴と排水穴の後方には前記洗濯水供給穴を介して流入された洗濯水を前記排水穴に案内するカバーが設けられている。
【００３６】
前記カバーの下端には係止爪が形成され、前記カバーの上端にはネジ穴が形成され、前記係止爪が前記洗濯水供給穴に係止され密着した状態で前記ネジ穴に前記底板を貫通するネジが入り込まれることにより前記カバーは前記底板に取り付けられる。
【００３７】
【発明の実施の形態】
以下、添付した図面に基づき本発明に係る望ましい実施形態について詳述する。ここで、図１に示された従来の技術による垂直軸洗濯機と同様な構成要素については同一な符号を付して説明する。
【００３８】
図４は本発明に係る脱水槽の構造を示した縦断面図である。同図によれば、本発明に係る脱水槽３０はパルセータ４を正逆回転させるための洗濯軸６ｂを貫通させる一方、脱水槽３０を回転させるための脱水軸６ａを設置するために設けられた底板４０と、該底板４０の外周縁から上向きに延長形成された胴体部５０と、を備えて略上部が開放された円筒状に形成される。
【００３９】
底板４０と胴体部５０は互いに接触する接触部３１、すなわち底板４０の外周縁と胴体部５０の下面がシーミング(seaming)方式により互いに折曲結合されることにより長期間の使用により緩む恐れのある従来のネジ締結構造に比べて堅固な取付状態を維持することができる。
【００４０】
胴体部５０には脱水行程時洗濯物から抜き取られる水を脱水槽３０から放出するよう多数の脱水穴５１が形成されており、その内側には上昇水流ガイド８０と布収集袋１１が設けられ、パルセータ４の正逆回転により発生する水流を脱水槽３０の上部に誘導して洗濯水から毛羽のような異物を濾す一方、脱水槽３０の上部からその下部に向けて洗濯水を落下させることにより洗濯水に含まれている洗剤の溶解を促し、洗濯物に衝撃を加えて洗濯力を増大させうるようにする。
【００４１】
前記上昇水流ガイド８０は胴体部５０の下部から上部にかけて縦方向に配され、パルセータ４により発生する洗濯水流を胴体部５０の上部に誘導し、布収集袋１１は上昇水流ガイド８０の上面に付着され洗濯水から毛羽などを濾し出す。
【００４２】
ここで、前記布収集袋の代りに脱水槽の内壁にもう一つの上昇水流ガイドを設け、該上昇水流ガイドの開放された前面部に金属網を備えたフィルターを取り付けて異物を濾し出すことも可能である。
【００４３】
また、図４では脱水槽に一つの上昇水流ガイドが設けられていることを示したが、必要に応じて複数個の上昇水流ガイドを脱水槽の内壁面に一定間隔に配置して構成することもできる。
【００４４】
図５は本発明に係る脱水槽の底板の構造を示した脱水槽の平面図であり、図６は図５に示した脱水槽の底板に脱水軸支持台が取り付けられる構造を示した脱水槽の下部の縦断面図である。
【００４５】
同図に示した通り、本発明に係る脱水槽３０の底板４０は、その中央に脱水軸６ａを支えるための脱水軸支持台６０を固定させる取付手段４３が一体に形成された中心部４１と、該中心部４１の外周縁から上向きに突出形成されたショルダ部４２が一体に形成される。
【００４６】
前記取付手段４３の外側には脱水行程時洗濯水を水槽２(図１参照)に流出させるための複数の排水穴４４が形成されており、排水穴４４の外側には底板４０の強度を増大させるために多数の凹凸部４５が円周方向に沿って形成されている。前記凹凸部４５により底板４０はパルセータ４と脱水槽３０の回転により発生する洗濯水と洗濯物の動荷重に十分耐えられるようになる。
【００４７】
また、脱水槽３０の底板４０にはパルセータ４により形成される洗濯水流を脱水槽３０の上向きに誘導する上昇水流ガイド８０に洗濯水を案内するための洗濯水供給穴４６と排水穴４７が設けられている。洗濯水供給穴４６は中心部４１の外周縁とショルダ部４２の下部との間にかけて形成され、排水穴４７はショルダ部４２の上部に形成されている。
【００４８】
本発明の脱水軸支持台６０は底板４０の中心部４１に一体に形成された取付手段４３に取り付けられるが、前記脱水軸支持台６０と該脱水軸支持台６０を固定させる取付手段４３の構造については図６を参照して説明する。
【００４９】
図６に示した通り、本発明に係る脱水軸支持台６０は、略中空の円筒状よりなりその内部に脱水軸６ａが挿入される挿入穴６１が形成され、その下端には取付手段４３が取り付けられるため前記挿入穴６１のサイズよりやや大きく形成されたフック溝６２が設けられている。前記挿入穴６１は脱水軸６ａが挿入された状態で脱水軸６ａと共に一体に回転できるよう断面が略矩形によりなるが(図５参照)、矩形以外の多角形よりなることもできる。脱水軸支持台６０の外側面は略円形をなして形成される。
【００５０】
前述したように構成された脱水軸支持台６０を固定するために底板４０の中心部４１に一体に形成された取付手段４３は脱水軸支持台６０の外側面を包んで収められるよう底板４０の中心部４１の中央から一定長さ下向きに延びて円環状をなす支持壁４３ａと、前記支持壁４３ａの下端に形成され脱水軸支持台６０の下端に取り付けられるフック部４３ｂと、前記支持壁４３ａの上端の内側から一定長さ水平に延長形成された複数の係止突起４３ｃを備えてなる。
【００５１】
前述したように構成された取付手段４３と脱水軸支持台６０は次のように取り付けられる。まず、中空円筒状の脱水軸支持台６０を取付手段４３のフック部４３ｂが取付手段４３の支持壁４３ａと一直線に形成された状態で取付手段４３の下部から上向きに挟み込めば、脱水軸支持台６０の上端が取付手段４３の係止突起４３ｃに係止され上向きへの移動が抑えられたまま脱水軸支持台６０の外側面が取付手段４３の支持壁４３ａに取り付けられる。
【００５２】
前述したような状態で支持壁４３ａの下端部を脱水軸支持台６０のフック溝６２の内側面に取り付けられるよう折り曲げて成形するならば、図６に示したようなフック部４３ｂが形成され脱水軸支持台６０の下端に取り付けられる。次いで、略矩形によりなる脱水軸支持台６０の挿入穴６１に脱水軸６ａをしっかり取り付けるならば脱水軸６ａの回転により脱水槽３０が共に回転できるよう構成される。
【００５３】
前述したことから分かる通り、本発明に係る脱水軸支持台６０はボルト締結が要らない構造になり、また小サイズによりなるので脱水槽３０の底板４０に形成された取付手段４３に簡便に組み立てられる。
【００５４】
また、小サイズの脱水軸支持台６０を脱水槽３０の底板４０と同一な材質、例えば耐腐食性のステンレススチールで作られ材質の相違による電位差が発生しないようにすることで脱水軸支持台６０の腐食が防止しうる。
【００５５】
上昇水流ガイド８０に洗濯水流を送るために底板４０に穿孔された洗濯水供給穴４６と排水穴４７の後方に形成されている開口部を覆うため、洗濯水供給穴４６と排水穴４７の後方にはカバー７０が設けられているが、該カバー７０の取り付け構造については図８を参照して後述する。
【００５６】
図７は図４に示した本発明に係る脱水槽の部分斜視図であって、図７ａは上昇水流ガイドが脱水槽から分離された状態を示し、図７ｂは上昇水流ガイドが脱水槽に組み立てられた状態を示した図である。
【００５７】
図７ａに示した通り、本発明に係る上昇水流ガイド８０は、前面部８１と、該前面部８１から後方に一定長さ延長形成された両側面部８２よりなって後方と上下方が開放された形状よりなる。
【００５８】
前面部８１の下端には脱水槽３０の底板４０に形成された排水穴４７に取り付けられるためのフック部材８３が設けられており、両側面部８２の後端には縦方向に一定間隔離隔配置された複数の結合突起８４が設けられている。
【００５９】
上昇水流ガイド８０が設けられる脱水槽３０の胴体部５０には前記結合突起８４を貫通できるよう上昇水流ガイド８０の両側面部８２の幅に対応して２列をなして上下方向に形成された複数個のスロット５２が設けられている。
【００６０】
図７ｂに示した通り、前述したように構成された上昇水流ガイド８０は、結合突起８４が脱水槽３０の胴体部５０に形成されたそれぞれ対応するスロット５２に挿入された後、結合突起８４の後部を胴体部５０の外壁面に折曲固定させることにより上昇水流ガイド８０の両側面部８２が脱水槽３０の胴体部５０に密着設置される。
【００６１】
また、上昇水流ガイド８０の下端がフック部材８３により排水穴４７の周りで脱水槽３０の底板４０に密着結合されることにより、上昇水流ガイド８０と脱水槽３０の底板４０は従来の洗濯機で開示された凸条部２３(図３ｂ参照)が形成されず滑らかな構造を有する。ここで、フック部材８３の結合構造については図８に基づき後述する。
【００６２】
前記のように上昇水流ガイド８０は隙間ができず脱水槽３０に密着される構造により上昇水流ガイド８０に流入された洗濯水は外部に漏れ出ず上昇水流ガイド８０の上部まで案内されうる。
【００６３】
図８は本発明に係る脱水槽の底板に上昇水流ガイドとカバーが取り付けられる構造を示した脱水槽の部分縦断面図である。
【００６４】
図８に示した通り、上昇水流ガイド８０のフック部材８３は上昇水流ガイド８０の下端から内側に水平に延びた水平部８３ａと、該水平部８３ａの端部から下向きに延びた垂直部８３ｂとからなる。排水穴４７の内側の縁部には前記フック部材８３の垂直部８３ｂに対応して下向きに延びた凸条部４７ａが形成されている。
【００６５】
従って、フック部材８３の水平部８３ａと垂直部８３ｂがそれぞれ排水穴４７の縁部と前記凸条部４７ａに密着した状態で前記垂直部８３ｂの下端が凸条部４７ａの下端の内側方向に折り曲げられることにより、フック部材８３は底板４０の排水穴４７の周りに取り付けられる。
【００６６】
前述した通り、本発明に係る上昇水流ガイド８０は両側面部８２が脱水槽３０の胴体部５０に密着される一方、その下部が底板４０の排水穴４７に密着される構造よりなって上昇水流ガイド８０と脱水槽３０との間には隙間ができなくなるため、上昇水流ガイド８０に流入された洗濯水流は外部に漏れ出ず上昇水流ガイド８０の上部に流動し、洗濯物や異物が詰まらなくなる。
【００６７】
また、脱水槽３０と上昇水流ガイド８０は同一な材質、例えばステンレススチールで作って、高温の洗濯水を使用しても同一な熱膨張係数を有するので全く隙間ができなくなる。
【００６８】
洗濯水供給穴４６と排水穴４７の後方には曲面をなして形成されるカバー７０が設けられ、前記洗濯水供給穴４６を通して流入された洗濯水が排水穴４７を介して上昇水流ガイド８０に流入されるよう案内する。
【００６９】
カバー７０の下方には洗濯水供給穴４６の先端に係止させる係止爪７１が形成されており、その上部にはネジ７３を収めるための複数のネジ穴７２が形成されている。従って、カバー７０は係止爪７１が洗濯水供給穴４６の先端に係止され密着状態で前記ネジ穴７２に底板４０の上端部を貫通するネジ７３が入り込むことにより洗濯水供給穴４６を介して流入した洗濯水を排水穴４７に案内する。
【００７０】
以下、前述したように構成された本発明に係る脱水槽３０と上昇水流ガイド８０が設けられた垂直軸洗濯機の動作について説明する。
【００７１】
まず、脱水槽３０に洗濯物を投入した後洗濯機を作動させれば、水槽２に水が供給されてから駆動モータ５と動力伝達装置６によりパルセータ４が正逆回転するようになり、これにより洗濯物が洗濯水流に沿って流動しつつ脱水槽３０の内壁と洗濯水と摩擦されることにより洗濯がなされる。
【００７２】
この際、パルセータ４により発生した洗濯水流の一部は底板４０に形成された洗濯水供給穴４６に流入され排水穴４７を通過し、引き続き脱水槽３０に密着結合された上昇水流ガイド８０に沿って上昇する。このように上昇された洗濯水は上昇水流ガイド８０の上部に設けられた布収集袋１１を経て脱水槽３０の底部に落下して毛羽のような異物は濾され、落下した洗濯水が洗濯物を叩いて洗濯する。
【００７３】
このような洗濯行程において本発明に係る脱水槽３０と上昇水流ガイド８０は隙間ができないよう互いに密着結合されることにより上昇水流ガイド８０に流入された洗濯水は全て上向きに案内され、上昇水流ガイド８０と脱水槽３０との隙間に異物や洗濯物が詰まらなくなる。
【００７４】
一定時間経過して洗い行程が完了されれば、排水ホース８を介して洗濯水を排水させてから洗濯物から洗剤液を抜き取る濯ぎ行程が行われ、次いで脱水軸６ａの回転により脱水槽３０が高速で回転し洗濯物を脱水することにより洗濯が完了する。
【００７５】
【発明の効果】
以上述べた通り、本発明に係る洗濯機は脱水軸支持台が小サイズで構成され脱水槽の底板にボルト締結せず簡単に取り付けられることにより製造コストが節減され組立時間が短縮される効果がある。
【００７６】
また、本発明の洗濯機は長期間使用しても脱水軸支持台が脱水軸の底板に堅固に固定されうる構造を有するので、製品の寿命が延びる効果がある。
【００７７】
そして、本発明の洗濯機は小サイズの脱水軸支持台を脱水槽と同様な材質で構成して相異なる材質による電位差により発生する脱水軸支持台の腐食を防止することにより洗濯物の汚染を防ぐことができる。
【００７８】
また、本発明に係る洗濯機は脱水槽の底板に多数の凹凸部を形成させ十分な強度を維持させることにより脱水槽の耐久性を向上させる効果がある。
【００７９】
そして、本発明の洗濯機は上昇水流ガイドが脱水槽に隙間ができないよう密着結合されることにより上昇水流ガイドを介して十分な量の洗濯水が排水され異物の収集が円滑になされるのみならず、洗濯力がアップされる。
【００８０】
また、本発明に係る洗濯機は上昇水流ガイドが脱水槽との間に隙間ができずに結合され洗濯物や異物の詰まりが発生しないため、洗濯物の損傷と汚染を防止することができる。
【００８１】
そして、本発明に係る洗濯機は脱水槽と上昇水流ガイドが同一な材質で作られ高温の洗濯水を使用しても上昇水流ガイドの変形を招かないことから洗濯物の損傷と汚染を防止できるのみならず、部品の寿命を延せる。
【図面の簡単な説明】
【図１】従来の技術による脱水槽を備えた垂直軸洗濯機の内部構造を示した縦断面図である。
【図２】図１に示した従来の技術による脱水槽の底板と脱水軸支持台の取付構造を示した斜視図である。
【図３ａ】図１に示した従来の技術による脱水槽と上昇水流ガイドの取付構造を示した脱水槽の部分斜視図であって、上昇水流ガイドが脱水槽から分離された状態を示した図である。
【図３ｂ】図１に示した従来の技術による脱水槽と上昇水流ガイドの取付構造を示した脱水槽の部分斜視図であって、上昇水流ガイドが脱水槽に組み立てられた状態を示した図である。
【図４】本発明に係る脱水槽の構造を示した縦断面図である。
【図５】図４に示した脱水槽の底板の構造を示した脱水槽の平面図である。
【図６】図５の線ＶＩ-ＶＩに沿って切り取ったもので、脱水槽の底板に脱水軸支持台が取り付けられた状態を示した脱水槽下部の縦断面図である。
【図７ａ】図４に示した本発明に係る脱水槽の部分斜視図であって、上昇水流ガイドが脱水槽から分離された状態を示した図である。
【図７ｂ】図４に示した本発明に係る脱水槽の部分斜視図であって、上昇水流ガイドが脱水槽に組み立てられた状態を示した図である。
【図８】本発明に係る脱水槽の底板に上昇水流ガイドとカバーが取り付けられる構造を示した脱水槽の部分縦断面図である。
【符号の説明】
３０脱水槽
４０底板
４３取付手段
４５凹凸部
４６洗濯水供給穴
４７排水穴
５０胴体部
５２スロット
６０脱水軸支持台
７０カバー
８０上昇水流ガイド
８３フック部材
８４結合突起[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine. More specifically, the structure of a dewatering tub provided with an ascending water flow guide and a dewatering shaft support base can be improved to increase the amount of ascending water flow and prevent the laundry from being damaged. The present invention relates to a washing machine in which a table is easily attached to a dewatering tank.
[0002]
[Prior art]
In general, a washing machine is a device that rotates a cylindrical rotating tub filled with washing water to wash laundry, and for these types of washing machines, the rotating tub is disposed horizontally and the rotating tub is When rotating in the forward and reverse directions about the horizontal axis, the laundry is lifted upward along the inner circumferential surface of the rotating tub and then dropped, and the drum washing machine is a method of washing the laundry and has a pulsator inside There is a vertical axis washing machine which is a method of washing laundry by a water flow generated by a pulsator when the rotating tub is vertically suspended and the rotating tub rotates in the forward / reverse direction about the vertical axis.
[0003]
The present invention relates to a vertical axis washing machine, and FIG. 1 shows an internal structure of a vertical axis washing machine having a conventional dehydration tub. According to the figure, a conventional vertical axis washing machine is provided with a housing 1 that has an external appearance, a cylindrical water tank 2 that is suspended inside the housing 1 and stretches washing water, and a water tank 2 that is rotatable. A cylindrical dewatering tub (rotary tub) 3 having a large number of dewatering holes 3c formed on the outer peripheral surface, a pulsator 4 provided in the lower portion inside the dewatering tub 3 and generating a washing water flow, and a lower portion outside the water tub 2 A drive motor 5 provided to rotate the pulsator 4 and the dehydration tank 3 and a power transmission device 6 are provided.
[0004]
The upper part of the housing 1 is opened so that the laundry can be put in and taken out from the dewatering tub 3, and a door 7 for opening or closing the dewatering tub 3 is hinged to the upper part of the opened housing 1. In addition, a drainage hose 8 extending outside the housing 1 is provided at the lower part of the water tank 2 in order to discharge washing water stretched on the water tank 2 after washing is completed.
[0005]
The conventional dewatering tank 3 is screwed to the bottom plate 3a whose central portion is open to attach the dewatering tank 3 and the pulsator 4 to the dewatering shaft 6a and the washing shaft 6b of the power transmission device 6, respectively, and the outer periphery of the bottom plate 3a. And a cylindrical body portion 3b.
[0006]
On the inner wall surface of the body part 3b of the dewatering tank 3, the water flow generated by the forward / reverse rotation of the pulsator 4 during the washing process is guided to the upper part of the dewatering tank 3, and the washing water falls from the upper part of the dewatering tank 3 toward the laundry. Thus, a rising water flow guide 10 is provided that promotes the dissolution of the detergent contained in the washing water and can increase the washing power by impacting the laundry. A cloth collection bag 11 is attached to the upper end of the rising water flow guide 10 to filter out foreign substances such as fluff contained in the washing water.
[0007]
FIG. 2 is a perspective view showing a mounting structure of a bottom plate of a dewatering tank and a dewatering shaft support base according to the prior art shown in FIG.
[0008]
According to the figure, the bottom plate 3a of the conventional dewatering tank 3 is provided with a dewatering shaft support 15 for attaching the dewatering shaft 6a (see FIG. 1) of the power transmission device 6 to the bottom plate 3a. The dehydrating shaft support 15 is formed with a hub 16 in which an insertion hole 16a for inserting the upper end of the dewatering shaft 6a is formed, and is extended outward from the hub 16, and a fastening hole 17a is formed at the end thereof. The plurality of arms 17 are provided. The insertion hole 16a of the hub 16 is formed in a substantially rectangular shape so that the dewatering shaft 6a is firmly sandwiched so that the dewatering tank 3 can be rotated by the rotation of the dewatering shaft 6a.
[0009]
The bottom plate 3a of the dewatering tank 3 to which the dewatering shaft support 15 configured as described above is attached has an opening 18 formed at the center thereof, and extends from the inside of the dewatering shaft 6a through the opening 18 to the pulsator 4. At the same time as the washing shaft 6b (see FIG. 1) to be worn is penetrated, the washing water stretched in the dewatering tank 3 is discharged to the outside during the dewatering process. Further, the edge of the bottom plate 3a surrounding the opening 18 is formed flat, and a plurality of fastening holes 19 corresponding to the fastening holes 17a formed in the arm 17 are formed on the edge, and the fastening holes 17a, 19 are formed. The dewatering shaft support 15 is attached to the bottom plate 3a of the dewatering tank by fastening the bolt 20 through the dewatering tank.
[0010]
FIG. 3 is a view showing a mounting structure of a dewatering tank and a rising water flow guide according to the prior art shown in FIG. 1, and FIG. 3a is a view showing a state where the rising water flow guide is separated from the dewatering tank, FIG. 3b is a view showing a state where the rising water flow guide is assembled in the dewatering tank.
[0011]
As shown in FIG. 3 a, in the conventional dewatering tank 3, a rising water flow guide 10 is separately prepared to guide the water flow generated by the pulsator 4 to the upper part of the dewatering tank 3, and is formed on the inner wall surface of the body portion 3 b of the dewatering tank 3. It is provided in the vertical direction. The ascending water flow guide 10 has a substantially “C” -shaped cross section so that the upper part, the lower part, and the rear part are opened, and the inner wall surface is fixed to correspond to the screw hole 3d formed in the body part 3b of the dewatering tank 3. Female screw parts (not shown) formed at intervals are provided, and are attached to the body part 3 b of the dewatering tank 3 by a large number of screws 20.
[0012]
As shown in FIG. 3 b, the washing water flows between the lower end of the rising water flow guide 10 and the bottom plate 3 a of the dewatering tank 3 in a state where the rising water flow guide 10 is screwed to the inner wall surface of the dewatering tank 3. A washing water supply port 21 is formed, and a drain port 22 for discharging washing water is formed at the upper end of the rising water flow guide 10.
[0013]
In the vertical axis washing machine having the conventional dewatering tub 3 and the ascending water flow guide 10 configured as described above, water is supplied to the tub 2 when the laundry is operated after the laundry is put into the dewatering tub 3. After that, the pulsator 4 rotates forward and backward by the drive motor 5 and the power transmission device 6. The rotation of the pulsator 4 generates a washing water flow so that the laundry flows together with the washing water flow, and washing is performed by friction with the dehydrating tank 3. At this time, a part of the washing water flow generated by the pulsator 4 flows through the washing water supply port 21 of the rising water flow guide 10 and rises to the upper part of the dewatering tank 3, and then passes through the drain port 22 of the rising water flow guide 10. Then, fluff and the like contained in the washing water is filtered by the cloth collection bag 11, and the raised washing water falls to the lower part of the dehydration tank 3 to promote washing of the laundry.
[0014]
However, in the vertical shaft washing machine that operates as described above, the bottom plate 3a of the conventional dewatering tub 3 is structured to be bolted to the dewatering shaft support base 15, so that a considerable work man-hour is required to fasten the bolt. In addition, there is a disadvantage that the bolt is loosened due to long-term use and vibration is generated during the dehydration process.
[0015]
In addition, the bottom plate 3a of the conventional dewatering tank 3 has a flat shape and has a disadvantage that it is difficult to maintain a sufficient structural strength.
[0016]
Further, the conventional ascending water flow guide 10 has a structure that is screwed into the body portion 3 b of the dewatering tank 3 and cannot be completely adhered to the dewatering tank 3. In this case, a part of the washing water that rises along the rising water flow guide 10 during the washing process leaks through the gap between the rising water flow guide 10 and the dewatering tub 3 due to the structural gap, and passes through the rising water flow guide 10. A sufficient amount of washing water will not be raised. Accordingly, in the conventional washing machine, since the falling water flow falling from the upper part of the ascending water flow guide 10 is insufficient, the washing power is lowered, and the foreign matter is not efficiently filtered by the cloth collecting bag 11, so that the washing efficiency is deteriorated.
[0017]
In addition, the conventional washing machine is formed in an annular shape by having a structure in which the ridge portion 23 is formed in the circumferential direction together with the lower end of the rising water flow guide 10 at the edge of the bottom plate 3a of the dewatering tub 3. In addition to the foreign matter being clogged inside the protruding ridge 23, there is a disadvantage that the laundry is rubbed and damaged by the protruding ridge 23 during the washing process.
[0018]
In the conventional washing machine, the body portion 3b of the dewatering tub 3 and the rising water flow guide 10 are made of different materials, so that when the high temperature washing water is used, the rising water flow guide 10 due to the difference in thermal expansion coefficient. As a result of this deformation, the gap becomes larger, so that the gap becomes clogged with foreign matter and not only contaminates the laundry after washing is complete, but also the laundry gets clogged in the gap during washing and dehydration processes, and the laundry is damaged. There are disadvantages.
[0019]
Further, the conventional washing machine has a disadvantage that the bottom plate 3a of the dewatering tub 3 and the dewatering shaft support 15 are made of different materials, and corrosion occurs due to a potential difference due to the difference in materials, thereby contaminating the laundry.
[0020]
[Problems to be solved by the invention]
The present invention has been devised to solve the problems of the prior art described above, and its purpose is to improve the mounting structure of the bottom plate of the dewatering tank and the dewatering shaft support so that the dewatering shaft support is used as a dewatering tank. The present invention provides a washing machine that can be easily attached.
[0021]
Another object of the present invention is to provide a washing machine in which the material of the dewatering tank and the dewatering shaft support are the same to prevent corrosion due to a potential difference.
[0022]
Still another object of the present invention is to provide a washing machine in which the structure of the bottom plate of the dewatering tank is improved to improve the strength of the dewatering tank.
[0023]
Still another object of the present invention is to tightly couple the ascending water flow guide to the dewatering tank to guide a sufficient amount of washing water upward to increase washing power, and to efficiently filter foreign matter and damage the laundry. The present invention is to provide a washing machine that can prevent the above.
[0024]
Still another object of the present invention is to provide a washing machine in which a washing water supply hole and a drainage hole are formed in the bottom plate of the dewatering tank so that the washing water can be smoothly guided to the rising water flow guide.
[0025]
Still another object of the present invention is to provide a washing machine in which the dewatering tank and the rising water flow guide are made of the same material so that the rising water flow guide is not deformed by hot washing water.
[0026]
[Means for Solving the Problems]
The present invention for achieving the above-described object includes a dewatering tank for dewatering laundry, a pulsator provided inside the dewatering tank for generating a washing water flow, a dewatering shaft for rotating the dewatering tank, and the dewatering shaft. In the washing machine provided with a dehydrating shaft support for attaching the dewatering tank to the dewatering tank, the dewatering tank includes a bottom plate and a body portion extending a certain length upward from an outer peripheral edge of the bottom plate, and the bottom plate includes a central portion and the central portion. A shoulder portion protruding from the outer peripheral edge of the fixed portion is integrally formed, and the dewatering shaft support base is formed with an insertion hole into which the dewatering shaft is inserted, and the center of the bottom plate An attachment means for attaching the dewatering shaft support to the bottom plate is formed integrally with the bottom plate.
[0027]
The attachment means is formed at a lower end of the support wall and a cylindrical support wall that is formed to extend downward from the center of the center portion of the bottom plate by a certain length so as to form the insertion hole for housing the dewatering shaft support base. And a hook portion to which the dewatering shaft support is attached.
[0028]
In addition, a hook groove having a diameter larger than that of the insertion hole into which the dewatering shaft is inserted is provided at a lower end of the dewatering shaft support base, and the hook portion is folded from the support wall to the inner peripheral surface of the hook groove. The dewatering shaft support is attached to the bottom plate of the dewatering tank by being bent.
[0029]
The upper end of the support wall is provided with at least one locking projection extended inside the support wall so as to cover the upper surface of the dehydration shaft support, and the dewatering shaft support is released upward. To prevent that.
[0030]
The bottom plate of the dewatering tank is formed with a plurality of drain holes for allowing washing water to flow downward through the dewatering tank, and a plurality of uneven portions for reinforcing the strength of the bottom plate.
[0031]
The body part of the dewatering tank is provided with a rising water flow guide for guiding the water flow generated by the pulsator to the upper part of the dewatering tank, and the bottom plate of the dewatering tank is configured to allow the washing water flow to flow into the rising water flow guide. The washing water supply hole and the drainage hole are integrally formed.
[0032]
The washing water supply hole is opened from an outer peripheral edge of a center portion of the bottom plate to a lower portion of a shoulder portion of the bottom plate, and the drainage hole is drilled in an upper portion of the shoulder portion, and a lower end of the rising water flow guide A hook member is integrally formed on the portion so as to be in close contact with the edge of the drain hole.
[0033]
The hook member includes a horizontal portion extending horizontally from a lower end of the rising water flow guide, and a vertical portion extending downward from the horizontal portion, and the drainage hole has a downward direction corresponding to the vertical portion of the hook member. An extended ridge is formed, and the lower end of the vertical portion is the lower end of the ridge in a state where the horizontal portion and the vertical portion of the hook member are in close contact with the edge of the drainage hole and the ridge, respectively. The hook member is attached to the drain hole by being bent inward.
[0034]
The body portion of the dewatering tank is formed with a plurality of slots arranged in two rows in the vertical direction, and the ascending water flow guide is formed to extend from the front surface portion to the rear by a certain length. A plurality of coupling protrusions extending at a predetermined distance in the vertical direction so as to correspond to the plurality of slots and extending rearwardly at the end portions of the both side surface parts. Are inserted into the slots so as to be in close contact with the outer wall surface of the dewatering tank, so that the rising water flow guide is attached to the body of the dewatering tank.
[0035]
A cover is provided behind the washing water supply hole and the drainage hole to guide the washing water introduced through the washing water supply hole to the drainage hole.
[0036]
A locking claw is formed at the lower end of the cover, a screw hole is formed at the upper end of the cover, and the bottom plate is attached to the screw hole in a state where the locking claw is locked and closely attached to the washing water supply hole. The cover is attached to the bottom plate by inserting a penetrating screw.
[0037]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, the same components as those in the vertical axis washing machine according to the prior art shown in FIG.
[0038]
FIG. 4 is a longitudinal sectional view showing the structure of the dewatering tank according to the present invention. According to the figure, the dewatering tank 30 according to the present invention is provided to install the dewatering shaft 6a for rotating the dewatering tank 30 while penetrating the washing shaft 6b for rotating the pulsator 4 forward and backward. A bottom plate 40 and a body portion 50 extending upward from the outer peripheral edge of the bottom plate 40 are provided, and are formed in a cylindrical shape with a substantially upper part opened.
[0039]
The bottom plate 40 and the body portion 50 may be loosened by long-term use when the outer peripheral edge of the bottom plate 40 and the lower surface of the body portion 50 are bent and joined together by a seaming method. A firm mounting state can be maintained as compared with the conventional screw fastening structure.
[0040]
A number of dewatering holes 51 are formed in the body portion 50 so as to discharge water extracted from the laundry during the dewatering process from the dewatering tank 30, and a rising water flow guide 80 and a cloth collection bag 11 are provided inside thereof. By guiding the water flow generated by the forward / reverse rotation of the pulsator 4 to the upper part of the dewatering tank 30 and filtering foreign matter such as fluff from the washing water, the washing water is dropped from the upper part of the dewatering tank 30 toward the lower part thereof. It promotes the dissolution of the detergent contained in the wash water, and makes it possible to increase the washing power by impacting the laundry.
[0041]
The ascending water flow guide 80 is arranged in the vertical direction from the lower part to the upper part of the body part 50, guides the washing water flow generated by the pulsator 4 to the upper part of the body part 50, and the cloth collection bag 11 adheres to the upper surface of the ascending water flow guide 80. The fluff is filtered out from the washing water.
[0042]
Here, instead of the cloth collection bag, another rising water flow guide is provided on the inner wall of the dewatering tank, and a filter having a metal net is attached to the opened front portion of the rising water flow guide to filter out foreign matters. Is possible.
[0043]
In addition, FIG. 4 shows that one ascending water flow guide is provided in the dewatering tank. However, if necessary, a plurality of ascending water flow guides may be arranged on the inner wall surface of the dewatering tank at regular intervals. You can also.
[0044]
5 is a plan view of the dehydration tank showing the structure of the bottom plate of the dehydration tank according to the present invention, and FIG. 6 is a dehydration tank showing a structure in which a dehydrating shaft support is attached to the bottom plate of the dehydration tank shown in FIG. It is a longitudinal cross-sectional view of the lower part.
[0045]
As shown in the figure, the bottom plate 40 of the dewatering tank 30 according to the present invention has a central portion 41 integrally formed with an attaching means 43 for fixing a dewatering shaft support 60 for supporting the dewatering shaft 6a at the center thereof. The shoulder portion 42 is formed integrally with the center portion 41 so as to protrude upward from the outer peripheral edge.
[0046]
A plurality of drain holes 44 are formed outside the attachment means 43 to allow washing water to flow out into the water tank 2 (see FIG. 1) during the dehydration process. The strength of the bottom plate 40 is increased outside the drain holes 44. In order to achieve this, a large number of concavo-convex portions 45 are formed along the circumferential direction. The uneven portion 45 allows the bottom plate 40 to sufficiently withstand the dynamic load of the washing water and the laundry generated by the rotation of the pulsator 4 and the dehydrating tank 30.
[0047]
Further, the bottom plate 40 of the dewatering tank 30 is provided with a wash water supply hole 46 and a drain hole 47 for guiding the wash water to a rising water flow guide 80 that guides the wash water flow formed by the pulsator 4 upward. It has been. The washing water supply hole 46 is formed between the outer peripheral edge of the central portion 41 and the lower portion of the shoulder portion 42, and the drainage hole 47 is formed in the upper portion of the shoulder portion 42.
[0048]
The dehydrating shaft support base 60 of the present invention is attached to mounting means 43 formed integrally with the central portion 41 of the bottom plate 40, and the structure of the dehydrating shaft support base 60 and the mounting means 43 for fixing the dehydrating shaft support base 60 to each other. Will be described with reference to FIG.
[0049]
As shown in FIG. 6, the dehydrating shaft support base 60 according to the present invention is formed in a substantially hollow cylindrical shape, and an insertion hole 61 into which the dewatering shaft 6a is inserted is formed therein. In order to be attached, a hook groove 62 formed slightly larger than the size of the insertion hole 61 is provided. The insertion hole 61 has a substantially rectangular cross section so that it can rotate together with the dewatering shaft 6a in a state where the dewatering shaft 6a is inserted (see FIG. 5), but it can also have a polygon other than a rectangle. The outer surface of the dewatering shaft support base 60 is formed in a substantially circular shape.
[0050]
In order to fix the dewatering shaft support base 60 configured as described above, the attachment means 43 formed integrally with the central portion 41 of the bottom plate 40 wraps the outer surface of the dewatering shaft support base 60 so as to be accommodated. A support wall 43a extending downward from the center of the center portion 41 by a certain length to form an annular shape, a hook portion 43b formed at the lower end of the support wall 43a and attached to the lower end of the dewatering shaft support base 60, and the support wall 43a A plurality of locking projections 43c are formed extending horizontally from the inside of the upper end of the fixed length horizontally.
[0051]
The attachment means 43 and the dehydrating shaft support base 60 configured as described above are attached as follows. First, if the hollow cylindrical dewatering shaft support base 60 is sandwiched upward from the lower part of the mounting means 43 with the hook portion 43b of the mounting means 43 formed in line with the support wall 43a of the mounting means 43, the dewatering shaft support is supported. The outer surface of the dehydrating shaft support base 60 is attached to the support wall 43 a of the attachment means 43 while the upper end of the base 60 is engaged with the engagement protrusion 43 c of the attachment means 43 and the upward movement is suppressed.
[0052]
If the lower end portion of the support wall 43a is bent and formed so as to be attached to the inner surface of the hook groove 62 of the dewatering shaft support base 60 in the state as described above, the hook portion 43b as shown in FIG. It is attached to the lower end of the shaft support base 60. Next, if the dewatering shaft 6a is firmly attached to the insertion hole 61 of the substantially rectangular dewatering shaft support 60, the dewatering tank 30 can be rotated together with the rotation of the dewatering shaft 6a.
[0053]
As can be seen from the foregoing, the dewatering shaft support 60 according to the present invention has a structure that does not require bolt fastening and is small in size, so that it can be easily assembled to the mounting means 43 formed on the bottom plate 40 of the dewatering tank 30. .
[0054]
Further, the dewatering shaft support 60 is made of the same material as that of the bottom plate 40 of the dewatering tank 30, for example, corrosion-resistant stainless steel, so that a potential difference due to the material difference does not occur. Corrosion of can be prevented.
[0055]
In order to cover the openings formed in the rear of the washing water supply hole 46 and the drainage hole 47 drilled in the bottom plate 40 in order to send the washing water flow to the rising water flow guide 80, the rear of the washing water supply hole 46 and the drainage hole 47 is covered. The cover 70 is provided on the cover 70, and the structure for attaching the cover 70 will be described later with reference to FIG.
[0056]
7 is a partial perspective view of the dewatering tank according to the present invention shown in FIG. 4, wherein FIG. 7a shows a state where the rising water flow guide is separated from the dewatering tank, and FIG. FIG.
[0057]
As shown in FIG. 7a, the ascending water flow guide 80 according to the present invention includes a front surface portion 81 and both side surface portions 82 formed to extend rearward from the front surface portion 81 by a predetermined length. It consists of a shape.
[0058]
A hook member 83 is provided at the lower end of the front surface portion 81 to be attached to the drainage hole 47 formed in the bottom plate 40 of the dewatering tank 30. The rear ends of the side surface portions 82 are spaced apart by a certain distance in the vertical direction. A plurality of coupling protrusions 84 are provided.
[0059]
A plurality of body portions 50 of the dewatering tank 30 provided with the rising water flow guide 80 are formed in two rows in the vertical direction so as to correspond to the width of the side surface portions 82 of the rising water flow guide 80 so as to be able to penetrate the coupling protrusions 84. Slots 52 are provided.
[0060]
As shown in FIG. 7 b, the ascending water flow guide 80 configured as described above has the coupling protrusion 84 inserted into the corresponding slot 52 formed in the body portion 50 of the dewatering tank 30, and By bending and fixing the rear part to the outer wall surface of the body part 50, both side parts 82 of the rising water flow guide 80 are closely attached to the body part 50 of the dewatering tank 30.
[0061]
Further, the lower water guide 80 and the bottom plate 40 of the dewatering tub 30 are closely coupled to the bottom plate 40 of the dewatering tub 30 around the drain hole 47 by the hook member 83, so that the ascending water flow guide 80 and the bottom plate 40 of the dewatering tub 30 are a conventional washing machine. The disclosed ridges 23 (see FIG. 3b) are not formed and have a smooth structure. Here, the coupling structure of the hook member 83 will be described later with reference to FIG.
[0062]
As described above, the ascending water flow guide 80 does not have a gap and has a structure in which the ascending water flow guide 80 is in close contact with the dewatering tank 30, so that the washing water flowing into the ascending water flow guide 80 can be guided to the upper part of the ascending water flow guide 80 without leaking to the outside.
[0063]
FIG. 8 is a partial longitudinal sectional view of the dewatering tank showing a structure in which the rising water flow guide and the cover are attached to the bottom plate of the dewatering tank according to the present invention.
[0064]
As shown in FIG. 8, the hook member 83 of the rising water flow guide 80 includes a horizontal portion 83a extending horizontally inward from the lower end of the rising water flow guide 80, and a vertical portion 83b extending downward from the end of the horizontal portion 83a. Consists of. On the inner edge of the drainage hole 47, a ridge 47a extending downward corresponding to the vertical portion 83b of the hook member 83 is formed.
[0065]
Accordingly, the horizontal portion 83a and the vertical portion 83b of the hook member 83 are in close contact with the edge of the drainage hole 47 and the protruding strip portion 47a, respectively, and the lower end of the vertical portion 83b is bent inwardly of the lower end of the protruding strip portion 47a. As a result, the hook member 83 is attached around the drain hole 47 of the bottom plate 40.
[0066]
As described above, the rising water flow guide 80 according to the present invention has a structure in which both side portions 82 are in close contact with the body portion 50 of the dewatering tank 30 and the lower portion thereof is in close contact with the drain hole 47 of the bottom plate 40. Since there is no gap between 80 and the dewatering tub 30, the washing water flow that has flowed into the rising water flow guide 80 does not leak to the outside but flows to the upper portion of the rising water flow guide 80, and the laundry and foreign matter are not clogged.
[0067]
Further, the dewatering tank 30 and the rising water flow guide 80 are made of the same material, for example, stainless steel, and even if hot washing water is used, since the same thermal expansion coefficient is used, there is no gap at all.
[0068]
A cover 70 having a curved surface is provided behind the washing water supply hole 46 and the drainage hole 47, and the washing water flowing in through the washing water supply hole 46 passes to the rising water flow guide 80 through the drainage hole 47. Guide you to flow in.
[0069]
A locking claw 71 is formed below the cover 70 to be locked to the tip of the washing water supply hole 46, and a plurality of screw holes 72 for receiving screws 73 are formed in the upper part thereof. Accordingly, in the cover 70, the locking claw 71 is locked to the tip of the washing water supply hole 46, and the screw 73 penetrating the upper end of the bottom plate 40 enters the screw hole 72 in a close contact state. The washing water that flows in is guided to the drain hole 47.
[0070]
Hereinafter, the operation of the vertical axis washing machine provided with the dewatering tank 30 and the rising water flow guide 80 according to the present invention configured as described above will be described.
[0071]
First, if the washing machine is operated after putting the laundry into the dewatering tank 30, the water is supplied to the water tank 2, and then the pulsator 4 is rotated forward and backward by the drive motor 5 and the power transmission device 6. Thus, the laundry is rubbed against the inner wall of the dewatering tank 30 and the washing water while flowing along the washing water flow, thereby washing the laundry.
[0072]
At this time, a part of the washing water flow generated by the pulsator 4 flows into the washing water supply hole 46 formed in the bottom plate 40, passes through the drainage hole 47, and continues along the rising water flow guide 80 that is tightly coupled to the dewatering tank 30. Rise. The washing water raised in this way falls to the bottom of the dewatering tank 30 through the cloth collecting bag 11 provided at the upper part of the rising water flow guide 80, and foreign matter such as fluff is filtered, and the dropped washing water is washed. Tap to wash.
[0073]
In such a washing process, the dewatering tub 30 and the rising water flow guide 80 according to the present invention are tightly coupled to each other so that there is no gap, so that all the washing water flowing into the rising water flow guide 80 is guided upward, and the rising water flow guide. Foreign matter and laundry are not clogged in the gap between 80 and the dehydration tank 30.
[0074]
When the washing process is completed after a lapse of a certain time, a washing process is performed in which the washing water is drained through the drainage hose 8 and then the detergent liquid is extracted from the laundry. Washing is completed by rotating at high speed and dehydrating the laundry.
[0075]
【The invention's effect】
As described above, in the washing machine according to the present invention, the dewatering shaft support base is configured in a small size and can be easily attached to the bottom plate of the dewatering tank without bolting, thereby reducing the manufacturing cost and shortening the assembly time. is there.
[0076]
In addition, the washing machine of the present invention has a structure in which the dewatering shaft support can be firmly fixed to the bottom plate of the dewatering shaft even if it is used for a long period of time.
[0077]
In the washing machine of the present invention, a small-sized dewatering shaft support base is made of the same material as the dewatering tub and prevents the dewatering shaft support base from being corroded due to a potential difference caused by different materials, thereby preventing contamination of the laundry. Can be prevented.
[0078]
In addition, the washing machine according to the present invention has an effect of improving the durability of the dewatering tank by forming a large number of uneven portions on the bottom plate of the dewatering tank and maintaining sufficient strength.
[0079]
In the washing machine of the present invention, if the rising water flow guide is tightly coupled so that there is no gap in the dewatering tub, a sufficient amount of washing water can be drained through the rising water flow guide and the foreign matter can be collected smoothly. The washing power is improved.
[0080]
In addition, the washing machine according to the present invention can prevent the laundry from being damaged and contaminated because the ascending water flow guide is coupled with the dehydration tank without a gap and the laundry and foreign matter are not clogged.
[0081]
In the washing machine according to the present invention, the dewatering tub and the rising water flow guide are made of the same material, and even when hot washing water is used, the rising water flow guide is not deformed, so that damage and contamination of the laundry can be prevented. Not only can it extend the life of parts.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an internal structure of a vertical shaft washing machine having a dehydrating tub according to a conventional technique.
2 is a perspective view showing a mounting structure of a bottom plate of a dewatering tank and a dewatering shaft support base according to the prior art shown in FIG. 1. FIG.
FIG. 3a is a partial perspective view of the dehydration tank showing the attachment structure of the dewatering tank and the rising water flow guide according to the prior art shown in FIG. 1, and showing the state where the rising water flow guide is separated from the dehydration tank; It is.
3b is a partial perspective view of the dewatering tank showing the attachment structure of the dewatering tank and the rising water flow guide according to the prior art shown in FIG. 1, and shows a state in which the rising water flow guide is assembled to the dewatering tank. It is.
FIG. 4 is a longitudinal sectional view showing the structure of a dewatering tank according to the present invention.
5 is a plan view of the dewatering tank showing the structure of the bottom plate of the dewatering tank shown in FIG. 4. FIG.
6 is a longitudinal sectional view of the lower part of the dewatering tank taken along line VI-VI in FIG. 5 and showing a state in which the dewatering shaft support is attached to the bottom plate of the dewatering tank.
7a is a partial perspective view of the dewatering tank according to the present invention shown in FIG. 4, and shows a state where the rising water flow guide is separated from the dewatering tank. FIG.
FIG. 7b is a partial perspective view of the dewatering tank according to the present invention shown in FIG. 4, and shows a state where the rising water flow guide is assembled to the dewatering tank.
FIG. 8 is a partial longitudinal sectional view of the dewatering tank showing a structure in which a rising water flow guide and a cover are attached to the bottom plate of the dewatering tank according to the present invention.
[Explanation of symbols]
30 Dehydration tank
40 Bottom plate
43 Mounting means
45 Irregularities
46 Washing water supply hole
47 Drainage hole
50 torso
52 slots
60 Dehydrating shaft support
70 cover
80 Ascending water flow guide
83 Hook member
84 Bonding protrusion

Claims

A dehydrating tank for dehydrating laundry, a pulsator provided inside the dewatering tank for generating a washing water flow, a dehydrating shaft for rotating the dehydrating tank, and a dehydrating shaft support for attaching the dewatering shaft to the dehydrating tank. In the washing machine
The dewatering tank includes a bottom plate and a body portion extending a certain length upward from the outer peripheral edge of the bottom plate, and the bottom plate is integrally formed with a center portion and a shoulder portion that is formed to protrude from the outer peripheral edge of the central portion at a constant height. And
The dewatering shaft support base is formed with an insertion hole for inserting the dewatering shaft therein, and attachment means for attaching the dewatering shaft support base to the bottom plate is formed integrally with the bottom plate at the center of the bottom plate. and,
The attachment means includes
A cylindrical support wall formed by extending a certain length downward from the center of the center of the bottom plate so as to form the insertion hole for receiving the dehydrating shaft support;
A washing machine comprising: a hook portion formed below the support wall and fixing the dewatering shaft support base .

A hook groove having a larger diameter than the insertion hole into which the dewatering shaft is inserted is provided at the lower end of the dewatering shaft support base, and the hook portion is bent from the support wall to the inner peripheral surface of the hook groove. The washing machine according to claim 1 , wherein the dewatering shaft support is fixed to a bottom plate of the dewatering tank by being coupled.

The upper end of the support wall is provided with at least one locking projection extending inside the support wall so as to cover the upper surface of the dewatering shaft support, thereby preventing the dewatering shaft support from being detached upward. The washing machine according to claim 2 , wherein:

The bottom plate of the dewatering tank is formed with a plurality of drain holes for allowing washing water to flow downward through the dewatering tank, and a plurality of uneven portions for reinforcing the strength of the bottom plate. The washing machine according to claim 1.

The washing machine according to claim 1, wherein a bottom plate of the dewatering tank and the dewatering shaft support are made of the same material.

Ascending water flow guide for guiding the water flow generated by the pulsator to the upper part of the dewatering tank is provided in the body part of the dewatering tank,
The washing machine according to claim 1, wherein a washing water supply hole and a drainage hole for allowing a washing water flow to flow into the rising water flow guide are integrally formed on a bottom plate of the dewatering tank.

The washing water supply hole is perforated from an outer peripheral edge of a center portion of the bottom plate and a lower portion of a shoulder portion of the bottom plate, and the drainage hole is perforated at an upper portion of the shoulder portion, and a lower end of the rising water flow guide The washing machine according to claim 6 , wherein a hook member is integrally formed so as to be in close contact with an edge of the drain hole.

The hook member includes a horizontal portion extending horizontally from a lower end of the rising water flow guide, and a vertical portion extending downward from the horizontal portion,
The drainage hole is formed with a ridge extending downward corresponding to the vertical part of the hook member,
The hook member is bent by the lower part of the vertical part being bent to the inside of the lower part of the convex part with the horizontal part and the vertical part of the hook member being in close contact with the edge part of the drainage hole and the convex part, respectively. The washing machine according to claim 7 , wherein the washing machine is attached to the drain hole.

A plurality of slots arranged in two rows in the vertical direction are formed in the body portion of the dewatering tank,
The ascending water flow guide is composed of a front surface portion and both side surface portions that are formed to extend backward from the front surface portion by a certain length, and the end portions of the both surface surface portions are vertically spaced to correspond to the plurality of slots. A plurality of spaced apart coupling protrusions are extended toward the rear,
Claim 7, characterized in that attaching the rising water flow guide by being bent such that the plurality of coupling protrusions are in close contact with the outer wall surface of the drying tub in a state where the inserted into each slot to the body portion of the dewatering tank The washing machine as described in.

The washing as claimed in claim 6 , wherein a cover for guiding the washing water introduced through the washing water supply hole to the drain hole is provided behind the washing water supply hole and the drain hole. Machine.

A locking claw is formed on the lower surface of the cover, a screw hole is formed on the upper surface of the cover, and the bottom plate is attached to the screw hole in a state where the locking claw is locked to the washing water supply hole and in close contact therewith. The washing machine as set forth in claim 10 , wherein the cover is attached to the bottom plate by fastening a penetrating screw.

The washing machine as set forth in claim 6 , wherein the outer peripheral edge of the bottom plate of the dewatering tub and the lower end of the body portion of the dewatering tub are connected in a seaming manner.

The washing machine as claimed in claim 6 , wherein a plurality of the ascending water flow guides are provided and spaced apart from each other at a predetermined interval on a body portion of the dewatering tub.

The washing machine according to claim 6 , wherein the dewatering tub is made of the same material as the rising water flow guide.