JP2004173745A

JP2004173745A - Washing and drying machine

Info

Publication number: JP2004173745A
Application number: JP2002340597A
Authority: JP
Inventors: Hiroshi Sagane; 寛砂金; Koichi Kubo; 光市久保; Kenji Terai; 謙治寺井
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2002-11-25
Filing date: 2002-11-25
Publication date: 2004-06-24
Anticipated expiration: 2022-11-25
Also published as: JP3969291B2

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the damage of garments and the occurrence of static electricity due to friction with a rotary blade by reducing the movement of water and the garments nearly in a horizontal direction and in an outer peripheral direction in a washing and drying process in a washing and drying machine having the rotary blade arranged rotatably on the inner bottom of an inner tub. <P>SOLUTION: The inner tub is rotatably arranged inside an outer tub supported by a plurality of suspensions in a casing. On the inner bottom of the inner tub, the rotary blades 27 are rotatably arranged, and the inner tub or the rotary blade 27 is driven by a motor to blow warm air into the inner tub by a warm air blowing means. The rotary blade 27 has a plurality of blades 29 extending in the outer peripheral direction from the center on a substrate 28 in the shape of a bowl which is raised in the outer peripheral direction. The inclination of an inclined surface 31 from the top 30 of the blade 29 toward the substrate 28 is nearly equal on each vertical cross section from the center to an outer periphery. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、内槽の内底部に回転自在に配設した回転翼を有する洗濯乾燥機に関するものである。
【０００２】
【従来の技術】
従来、この種の洗濯乾燥機は図８に示すように構成していた。以下、その構成について説明する。
【０００３】
図８に示すように、筐体１は、内部に複数のサスペンション２によって弾性的に吊り下げた外槽３を設け、脱水時の振動をサスペンション２によって吸収する構成としている。外槽３の内部には、回転中心軸を略鉛直方向に有し衣類を収容する内槽４を中空で２重構造とした洗濯・脱水軸５を中心に回転可能に配設し、内槽４の内底部に衣類を撹拌する回転翼６を回転自在に配設している。
【０００４】
回転翼６は、円形すり鉢状の基盤７と複数本の羽根８とで構成し、羽根８の頂部から基盤７への斜面の傾斜勾配は、中心部と外周部との間のほぼ中間点近傍位置から中心側に向かう部分を急に、また、中間点近傍位置から外側に向かう部分においては暫次ゆるやかにし、また、羽根８の幅は中心部分の幅をもっとも広くし、この幅の部分から外周に向けて幅を狭くしている。
【０００５】
また、内槽４の内部周壁には小孔（図示せず）を多数設けるとともに、上方には流体バランサ９を設けている。モータ（駆動手段）１０は、外槽３の底部に取り付け、洗濯または脱水時に回転力の伝達を洗濯・脱水軸５に切り換えるクラッチ１１と洗濯・脱水軸５を介して、内槽４または回転翼６に連結している。
【０００６】
循環ダクト１２は、伸縮自在の下部蛇腹状ホース１３を介して外槽３の下部に接続し、他端を乾燥用送風機１４の一端に接続している。乾燥用送風機１４の他端は、加熱手段であるヒータ１５を有する温風供給路１６に接続し、上部蛇腹状ホース１７を通って、内槽４へ繋がり、循環する経路を構成している。乾燥用送風機１４とヒータ１５とで温風送風手段を構成している。
【０００７】
外槽３には、外槽３の上面を気密的に覆う外槽カバー１８を設けており、この外槽カバー１８に伸縮自在の上部蛇腹状ホース１７からの温風噴出孔１９を開口している。また、この外槽カバー１８に中蓋２０を開閉自在に設け、衣類を出し入れするようにしている。
【０００８】
筐体カバー２１は筐体１の上部を覆うもので、開閉蓋２２を開閉自在に有し、制御装置２３を設けるとともに、内槽４に給水する給水弁２４を設けている。また、外槽３の底部に外槽３内に水を排水する排水弁２５を設けている。冷却用送風機２６は、筐体１の側面に取り付け、筐体１の内部に外槽３、循環ダクト１０などを冷却するように送風できるよう構成している。
【０００９】
制御装置２３は、モータ１０、クラッチ１１、乾燥用送風機１４、ヒータ１５、給水弁２４、排水弁２５、冷却用送風機２６などの動作を制御し、洗濯、すすぎ、脱水、乾燥の各行程を制御するように構成している（例えば、特許文献１参照）。
【００１０】
上記構成において動作を説明する。洗濯行程では、開閉蓋２２と中蓋２０を開けて、内槽４に衣類（洗濯物）と洗剤を投入し、運転を開始すると給水弁２４を開いて所定の水位まで給水した後、モータ１０を駆動する。このとき、伝達機構部のクラッチ１１を洗濯側に設定して、モータ１０の動力を洗濯・脱水軸５を介して回転翼６に伝達し、回転翼６が回転することで、羽根８が水を撹拌することにより水流が発生する。
【００１１】
また、内槽４の下層部の衣類は、直接に回転翼６の羽根８に引っかかり、略水平方向でかつ外周方向や上方向へ移動する。このようにして内槽４内の衣類を撹拌して、衣類どうし、または内槽４、回転翼６との接触によるこすれにより洗濯する。すすぎ行程でも同様にして動作し、衣類のすすぎを行う。
【００１２】
脱水行程では、排水弁２５を開いて内槽４内の水を排水した後、伝達機構部のクラッチ１１を脱水側に切り換えて、モータ１０の動力を洗濯・脱水軸５を介し内槽４に伝達して回転させ、衣類に遠心力を与えることにより、水分を衣類から分離することで行う。
【００１３】
乾燥行程では、排水弁２５を閉じて、モータ１０を駆動して回転翼６を回転させ、羽根８に衣類をひっかけて衣類に遠心力を与えることにより、衣類を外へはね飛ばすようにする。すると回転翼６の基盤７の傾斜面で衣類を上方へはね上げようとする力が働き（遠心力の分力）、衣類が撹拌される。この撹拌を繰り返しながら乾燥用送風機１４による送風とヒータ１５による発熱により、温風供給路１６、上部蛇腹状ホース１７を通して内槽４内へ温風を送り込む。
【００１４】
この温風は、衣類の水分を奪った後、内槽４から外槽３の内側へ出た後、下部蛇腹状ホース１３を通過して、循環ダクト１２へ至る。衣類の水分を奪って湿気を含んだ温風が、外槽３の内壁や循環ダクト１２内を通過しているとき、筐体１の側面に設置した冷却送風機２６による外部空気の流入で、外槽３や循環ダクト１２の外壁は冷却されることになり、その内部では、水分の結露が起こり、湿った温風は除湿されて乾燥用送風機１４へ戻る。この循環路で温風を循環させることにより、内槽４内の衣類を乾燥させることができる。
【００１５】
【特許文献１】
特開平１１−３０００７４号公報
【００１６】
【発明が解決しようとする課題】
このような従来の構成では、回転翼６の羽根８は、接触した水または衣類を略水平方向でかつ外周方向へ移動させるように傾斜させているため、衣類が略水平方向でかつ外周方向へ移動した際に、乾燥運転中に回転翼６との接触時間が長くなるために衣類が傷みやすくなり、乾燥の後半では衣類との摩擦が大きくなり、静電気が発生しやすくなるという問題があった。
【００１７】
また、衣類の量が多い場合は、衣類を羽根８にひっかけて遠心力で衣類を外へはね飛ばすのが難しく、その結果、基盤７の傾斜面で衣類を上方へはね上げる力が弱く、攪拌性能が落ちるため、洗浄むら、乾燥むらが発生しやすくなるという問題があった。
【００１８】
また、脱水行程では、内槽４を回転させ衣類に遠心力を与えることにより、水分を衣類から分離させるが、そのとき、衣類が内槽４内へ張り付いた状態になるため、回転翼６を回転させて衣類をはがす行程を行うが、衣類が少ないときにははがれにくく、その状態から乾燥を始めると衣類への温風の当たりが悪く、乾燥に時間がかかるという問題があった。
【００１９】
本発明は上記従来の課題を解決するもので、洗濯、乾燥行程での水や衣類の略水平方向でかつ外周方向の動きを少なくし、回転翼との摩擦による衣類の傷み、静電気の発生を抑えることを目的としている。
【００２０】
【課題を解決するための手段】
本発明は上記目的を達成するために、筐体内に複数のサスペンションで支持した外槽内に内槽を回転自在に配設し、この内槽の内底部に回転翼を回転自在に配設し、内槽または回転翼を駆動手段により駆動し、温風送風手段により内槽内に温風を吹き込むよう構成し、回転翼は、外周方向に向かって高くなるすり鉢円形状の基盤の上に、中心から外周方向へ延びる複数本の羽根を有し、羽根の頂部から基盤へ向けての傾斜面の勾配を中心から外周までの各縦断面でほぼ均一にしたものである。
【００２１】
これにより、洗濯、乾燥行程での水や衣類の略水平方向でかつ外周方向への動きを少なくすることができ、回転翼との摩擦による衣類の傷み、静電気の発生を抑えることができる。
【００２２】
【発明の実施の形態】
本発明の請求項１に記載の発明は、筐体内に複数のサスペンションで支持した外槽と、この外槽内に回転自在に配設した内槽と、この内槽の内底部に回転自在に配設した回転翼と、前記内槽または回転翼を駆動する駆動手段と、前記内槽内に温風を吹き込む温風送風手段とを備え、前記回転翼は、外周方向に向かって高くなるすり鉢円形状の基盤の上に、中心から外周方向へ延びる複数本の羽根を有し、前記羽根の頂部から前記基盤へ向けての傾斜面の勾配を中心から外周までの各縦断面でほぼ均一にしたものであり、洗濯、乾燥行程での水や衣類の略水平方向でかつ外周方向への動きを少なくすることができ、回転翼との摩擦による衣類の傷み、静電気の発生を抑えることができる。
【００２３】
請求項２に記載の発明は、上記請求項１に記載の発明において、回転翼は、羽根の傾斜面を基盤から羽根の頂部へ円弧で上昇する凹曲面にしたものであり、洗濯、乾燥行程で回転翼が回転するときに、羽根により直接に水や衣類を下からすくい上げる力が働き、衣類の上下移動が大きくなり、洗浄むら、乾燥むらを低減することができる。
【００２４】
請求項３に記載の発明は、上記請求項１または２に記載の発明において、回転翼は、羽根を回転翼の外周まで延設し、前記回転翼の基盤の外周面よりも高くなるようにしたものであり、衣類の量が少ないときでも、脱水後に内槽内へ張り付いた衣類がはがれやすくなり、乾燥時間を短縮することができる。
【００２５】
【実施例】
以下、本発明の実施例について、図面を参照しながら説明する。なお、従来例と同じ構成のものは同一符号を付して説明を省略する。
【００２６】
（実施例１）
図１および図２に示すように、回転翼２７は、回転中心軸を略鉛直方向に有し衣類を収容する内槽４の内底部に回転自在に配設し、衣類を撹拌するもので、外周方向に向かって高くなるすり鉢円形状の基盤２８の上に、中心から外周方向へ延びる４本の羽根２９を有し、羽根２９の頂部３０から基盤２８へ向けての傾斜面３１の勾配を中心から外周までの各縦断面でほぼ均一になるようにしている。
【００２７】
すなわち、基盤２８の中央部は洗濯・脱水軸５との連結部を設けているため山形を形成している。そして、基盤２８は外周へ向けて一旦低くなり、最下面を経て、さらに外周に向けて曲面を描いて高くなるすり鉢状に形成している。羽根２９は基盤２８上に形成され、中央部の山の頂点から始まり、基盤２８の曲面に沿って中心から外周まで水や衣類がまんべんなく引っかかるように必要な高さを設けている。また、外周付近では水平部３２を設け、同じ高さで外周まで延びる形状としている。
【００２８】
ここで、図３に示すように、羽根２９の断面はＡ〜Ｄ各部において、頂部３０から基盤２８へ向けての傾斜面３１の勾配を一定のθとしている。そのため、羽根２９の頂部３０から基盤２８までの距離が大きいところはすその幅が広くなり、逆に、羽根２９の頂部３０から基盤２８までの距離が小さいところはすその幅が狭くなる相関線３３が決定される。他の構成は従来例と同じである。
【００２９】
上記構成において動作を説明する。なお、洗濯、すすぎ、脱水、乾燥の各行程の基本的な動作は従来例と同じであるので説明を省略する。
【００３０】
洗濯行程では、回転翼２７を回転することで、水や衣類を回転翼２７の羽根２９に引っかけ撹拌して洗濯をする。このとき、図４に示すように、羽根２９の傾斜面３１に働く力Ｆは、傾斜面３１に対して略垂直方向に働く。一方、羽根２９の傾斜面３１の勾配は一定のθとしているため、水や衣類が羽根２９のどの部分に当たっても、斜め上方の（９０−θ）゜の方向へ力Ｆが働き、羽根２９に沿って略水平方向でかつ外周方向へ移動することが少なく、攪拌される。
【００３１】
この勾配θの角度は４２〜４５°にすることにより、衣類が上下方向へよく移動し、かつ、モータ１０へ過度の力がかかることなく、洗濯を行うことができることを発明者らは実験により確認している。
【００３２】
乾燥行程では、回転翼２７を回転することで、衣類を回転翼２７の羽根２９に引っかけて撹拌し乾燥する。このとき、上述したように、衣類が羽根２９のどの部分に当たっても、斜め上方の（９０−θ）゜の方向へ力Ｆが働き、羽根２９に沿って略水平方向でかつ外周方向へ移動することが少なく、衣類が上下に入れ換わる。
【００３３】
この撹拌を繰り返しながら衣類に均一に温風を当てながら乾燥を行うことにより、回転翼２７との摩擦による衣類の傷み、静電気の発生を抑えることができるとともに、乾燥時間を短縮することができる。
【００３４】
このように本実施例によれば、回転翼２７は、外周方向に向かって高くなるすり鉢円形状の基盤２８の上に、中心から外周方向へ延びる４本の羽根２９を有し、羽根２９の頂部３０から基盤２８へ向けての傾斜面３１の勾配を中心から外周までの各縦断面でほぼ均一になるようにしているので、洗濯、乾燥行程での水や衣類の略水平方向でかつ外周方向への動きを少なくすることができ、回転翼２７との摩擦による衣類の傷み、静電気の発生を抑えることができる。
【００３５】
（実施例２）
図５に示すように、回転翼３４は、内槽の内底部に回転自在に配設し、衣類を撹拌するもので、外周方向に向かって高くなるすり鉢円形状の基盤３５の上に、中心から外周方向へ延びる４本の羽根３６を有し、羽根３６の頂部３７から基盤３５へ向けての傾斜面３８を、図６に示すように、基盤３５から羽根３６の頂部３７へ円弧で上昇する凹曲面にしている。他の構成は上記実施例１と同じである。
【００３６】
上記構成において動作を説明する。なお、洗濯、すすぎ、脱水、乾燥の各行程の基本的な動作は従来例と同じであるので説明を省略する。
【００３７】
洗濯行程では、回転翼３４を回転することで、水や衣類を回転翼３４の羽根３６に引っかけ撹拌して洗濯をする。このとき、羽根３６に当たった水には、（９０−θ）゜の角度の方向に力が働くと同時に、図６の矢印ａで示すように、傾斜曲面に沿って上方へと流れる動きが発生するため、内槽内の水が上下によく循環し、洗浄効果を高めることができる。
【００３８】
乾燥行程では、回転翼３４を回転することで、衣類を回転翼３４の羽根３６に引っかけ撹拌して乾燥する。このとき、羽根３６に当たった衣類には、（９０−θ）゜の角度の方向に力が働くと同時に、図６の矢印ａで示すように、傾斜曲面に沿って上方へかきあげる動きが発生し、より衣類を上方へと勢いよく移動させることができる。
【００３９】
このように本実施例によれば、回転翼３４の羽根３６の傾斜面３８を基盤３５から羽根３６の頂部３７へ円弧で上昇する凹曲面にしたので、洗濯、乾燥行程で回転翼３４が回転するときに、羽根３６により直接に水や衣類を下からすくい上げる力が働き、衣類の上下移動が大きくなり、洗浄むら、乾燥むらを低減することができる。
【００４０】
（実施例３）
図７に示すように、回転翼３９は、内槽の内底部に回転自在に配設し、衣類を撹拌するもので、外周方向に向かって高くなるすり鉢円形状の基盤４０の上に、中心から外周方向へ延びる複数本の羽根４１を有し、羽根４１を回転翼３９の外形まで延設し、基盤４０の外周面よりも高さｈだけ高くなるようにしている。
【００４１】
また、羽根４１の外周部付近では水平部４２を設けて、モータ１０へ過度の力がかからないように、また、強度的に問題がないように形成し、水平部４２の先端部４２ａを円弧状としている。他の構成は上記実施例１または２と同じである。
【００４２】
また、羽根４１の高さｈは、少量の衣類（約１ｋｇ）をはがすのに最適な高さに設定する。なぜなら、衣類が多いときは自重である程度衣類が内槽からはがれるのと、衣類が多いときにあまり羽根４１の高さｈが高いと、羽根４１に過度の力が働きモータ１０の負荷が大きくなるからである。発明者らは、羽根４１の高さｈを７ｍｍ〜１５ｍｍにしたときに衣類が少量でも衣類を内槽からはがすことができ、また、衣類が多いときでも不具合がないことを実験により確認している。
【００４３】
上記構成において動作を説明する。なお、洗濯、すすぎ、脱水、乾燥の各行程の基本的な動作は従来例と同じであるので説明を省略する。
【００４４】
脱水行程で、内槽を高速で回転させ、衣類に遠心力を与えて脱水すると、衣類は内槽内へ張り付いた状態となる。つづいて、乾燥行程に移行するが、このとき、回転翼３９を回転させて、内槽内へ張り付いた衣類を回転翼３９の羽根４１の外周先端が引っ掛けることにより、衣類を内槽からはがすことができ、回転翼３９を回転することで、内槽からはがした衣類を回転翼３９の羽根４１に引っかけ撹拌して乾燥する。これにより、乾燥時間を短縮することができる。
【００４５】
このように本実施例によれば、回転翼３９の羽根４１を回転翼３９の外周まで延設し、回転翼３９の基盤４０の外周面よりも高くなるようにしたので、衣類の量が少ないときでも、脱水後に内槽内へ張り付いた衣類がはがれやすくなり、乾燥時間を短縮することができる。
【００４６】
【発明の効果】
以上のように、本発明の請求項１に記載の発明によれば、内槽の内底部に回転自在に配設した回転翼は、外周方向に向かって高くなるすり鉢円形状の基盤の上に、中心から外周方向へ延びる複数本の羽根を有し、羽根の頂部から基盤へ向けての傾斜面の勾配を中心から外周までの各縦断面でほぼ均一にしたから、洗濯、乾燥行程での水や衣類の略水平方向でかつ外周方向への動きを少なくすることができ、回転翼との摩擦による衣類の傷み、静電気の発生を抑えることができる。
【図面の簡単な説明】
【図１】本発明の第１の実施例の洗濯乾燥機の回転翼の斜視図
【図２】同洗濯乾燥機の断面図
【図３】（ａ）同洗濯乾燥機の回転翼の断面図
（ｂ）同洗濯乾燥機の回転翼のＡ−Ａ線断面図
（ｃ）同洗濯乾燥機の回転翼のＢ−Ｂ線断面図
（ｄ）同洗濯乾燥機の回転翼のＣ−Ｃ線断面図
（ｅ）同洗濯乾燥機の回転翼のＤ−Ｄ線断面図
【図４】同洗濯乾燥機の回転翼の羽根に働く力の説明図
【図５】本発明の第２の実施例の洗濯乾燥機の回転翼の斜視図
【図６】同洗濯乾燥機の回転翼の羽根の断面図
【図７】本発明の第３の実施例の洗濯乾燥機の回転翼の断面図
【図８】従来の洗濯乾燥機の断面図
【符号の説明】
１筐体
２サスペンション
３外槽
４内槽
１１モータ（駆動手段）
１４乾燥用送風機（温風送風手段）
１５ヒータ（温風送風手段）
２７回転翼
２８基盤
２９羽根
３０頂部
３１傾斜面[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a washing / drying machine having rotating blades rotatably disposed on an inner bottom of an inner tub.
[0002]
[Prior art]
Conventionally, this type of washer / dryer was configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 8, the casing 1 is provided with an outer tub 3 elastically suspended by a plurality of suspensions 2 therein, and the suspension 2 absorbs vibration during dehydration. Inside the outer tub 3, an inner tub 4 having a rotation center axis in a substantially vertical direction and accommodating clothing is provided rotatably around a washing / dehydrating shaft 5 having a hollow and double-structured inner tub 4. A rotating wing 6 for stirring clothes is rotatably arranged on the inner bottom of the garment 4.
[0004]
The rotary wing 6 is composed of a circular mortar-shaped base 7 and a plurality of blades 8, and the slope of the slope from the top of the blade 8 to the base 7 is near the middle point between the center and the outer periphery. The portion heading toward the center from the position is abrupt, and the portion heading outward from the position near the intermediate point is gently loosened, and the width of the blade 8 is the widest at the center, and from the portion of this width The width is reduced toward the outer circumference.
[0005]
In addition, a number of small holes (not shown) are provided on the inner peripheral wall of the inner tank 4, and a fluid balancer 9 is provided above. The motor (drive means) 10 is attached to the bottom of the outer tub 3, and is connected to the inner tub 4 or the rotating blades via the clutch 11 and the washing / dehydrating shaft 5 for switching the transmission of rotational force to the washing / dehydrating shaft 5 during washing or spin-drying. 6.
[0006]
The circulation duct 12 is connected to the lower part of the outer tub 3 via a telescopic lower bellows-shaped hose 13, and the other end is connected to one end of a drying blower 14. The other end of the drying blower 14 is connected to a hot air supply path 16 having a heater 15 as a heating means, passes through an upper bellows-shaped hose 17, is connected to the inner tank 4, and forms a path for circulation. The drying air blower 14 and the heater 15 constitute hot air blowing means.
[0007]
The outer tub 3 is provided with an outer tub cover 18 that airtightly covers the upper surface of the outer tub 3, and the outer tub cover 18 is opened with a hot air outlet 19 from a telescopic upper bellows-shaped hose 17. I have. An inner lid 20 is provided on the outer tank cover 18 so as to be openable and closable so that clothes can be taken in and out.
[0008]
The housing cover 21 covers the upper part of the housing 1, has an opening / closing lid 22 that can be opened and closed, has a control device 23, and has a water supply valve 24 for supplying water to the inner tank 4. A drain valve 25 for draining water into the outer tub 3 is provided at the bottom of the outer tub 3. The cooling blower 26 is attached to a side surface of the housing 1 and configured to blow air so as to cool the outer tub 3, the circulation duct 10, and the like inside the housing 1.
[0009]
The control device 23 controls operations of the motor 10, the clutch 11, the drying blower 14, the heater 15, the water supply valve 24, the drain valve 25, the cooling blower 26, and controls each process of washing, rinsing, dehydrating, and drying. (For example, see Patent Document 1).
[0010]
The operation of the above configuration will be described. In the washing process, the opening / closing lid 22 and the inner lid 20 are opened, clothes (laundry) and detergent are put into the inner tub 4, and when the operation is started, the water supply valve 24 is opened to supply water to a predetermined water level. Drive. At this time, the clutch 11 of the transmission mechanism is set to the washing side, and the power of the motor 10 is transmitted to the rotating blade 6 via the washing / dehydrating shaft 5, and the rotating blade 6 rotates, so that the blade 8 Is stirred to generate a water flow.
[0011]
Further, the clothing in the lower layer of the inner tub 4 is directly caught by the blades 8 of the rotary wings 6 and moves in a substantially horizontal direction and in an outer peripheral direction or an upward direction. In this way, the clothes in the inner tub 4 are agitated and washed by rubbing each other or by contact with the inner tub 4 and the rotary wing 6. The same operation is performed in the rinsing process, and the clothes are rinsed.
[0012]
In the dehydration process, after the drain valve 25 is opened to drain the water in the inner tub 4, the clutch 11 of the transmission mechanism is switched to the dehydrating side, and the power of the motor 10 is transferred to the inner tub 4 via the washing / dehydrating shaft 5. This is done by transmitting and rotating the clothes to apply centrifugal force to separate moisture from the clothes.
[0013]
In the drying process, the drain valve 25 is closed, the motor 10 is driven to rotate the rotary wings 6, the clothes are hooked on the blades 8 and centrifugal force is applied to the clothes so that the clothes are splashed out. . Then, a force for lifting the garment upward on the inclined surface of the base 7 of the rotary wing 6 acts (a component force of centrifugal force), and the garment is agitated. By repeating the stirring, the hot air is fed into the inner tank 4 through the hot air supply passage 16 and the upper bellows-like hose 17 by the air blown by the drying blower 14 and the heat generated by the heater 15.
[0014]
This hot air, after depriving the clothes of moisture, exits from the inner tank 4 to the inside of the outer tank 3, passes through the lower bellows-like hose 13, and reaches the circulation duct 12. When hot air containing moisture by taking away the moisture of clothes passes through the inner wall of the outer tub 3 and the inside of the circulation duct 12, the outside air flows in by the cooling blower 26 installed on the side surface of the housing 1. The outer walls of the tank 3 and the circulation duct 12 are cooled, and dew condensation of moisture occurs therein, and the moist warm air is dehumidified and returns to the drying blower 14. By circulating the warm air in this circulation path, the clothes in the inner tub 4 can be dried.
[0015]
[Patent Document 1]
JP-A-11-300774
[Problems to be solved by the invention]
In such a conventional configuration, the blades 8 of the rotary wings 6 are inclined so as to move the contacted water or clothing substantially in the horizontal direction and in the outer peripheral direction, so that the clothing is substantially horizontal and in the outer peripheral direction. When moving, the clothes tend to be damaged due to a longer contact time with the rotary wings 6 during the drying operation, and in the latter half of the drying, the friction with the clothes increases, and there is a problem that static electricity is easily generated. .
[0017]
In addition, when the amount of clothing is large, it is difficult to catch the clothing on the wings 8 and to fly the clothing out by centrifugal force. As a result, the force of lifting the clothing upward on the inclined surface of the base 7 is weak. However, there is a problem that unevenness in washing and drying are apt to occur due to reduced stirring performance.
[0018]
In the dehydration step, the inner tub 4 is rotated to apply centrifugal force to the clothing to separate moisture from the clothing. At this time, the clothing is stuck in the inner tub 4, so that the rotating wing 6 Is rotated to remove the clothes. However, when the clothes are small, it is difficult to peel off the clothes, and when drying is started from that state, there is a problem that the warm air hits the clothes poorly and it takes time to dry.
[0019]
The present invention solves the above-mentioned conventional problems, and reduces the movement of water and clothes in the substantially horizontal and outer circumferential directions in the washing and drying processes, and reduces the damage of clothes and the generation of static electricity by friction with the rotor. It is intended to suppress.
[0020]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an inner tank rotatably disposed in an outer tank supported by a plurality of suspensions in a housing, and a rotatable blade disposed rotatably at an inner bottom of the inner tank. The inner tank or the rotating blades are driven by the driving means, and hot air is blown into the inner tank by the hot air blowing means, and the rotating blades are placed on a mortar circular base that becomes higher in the outer peripheral direction. It has a plurality of blades extending from the center to the outer periphery, and the slope of the inclined surface from the top of the blade to the base is made substantially uniform in each longitudinal section from the center to the outer periphery.
[0021]
Thereby, movement of water or clothes in the washing and drying processes in the substantially horizontal direction and in the outer circumferential direction can be reduced, and damage to clothes and generation of static electricity due to friction with the rotor can be suppressed.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention provides an outer tank supported by a plurality of suspensions in a housing, an inner tank rotatably disposed in the outer tank, and a rotatable inner bottom of the inner tank. A rotating blade disposed therein; a driving unit for driving the inner tank or the rotating blade; and a hot air blowing unit for blowing hot air into the inner tank, wherein the rotating blade becomes higher toward an outer peripheral direction. On a circular base, having a plurality of blades extending from the center to the outer periphery, the gradient of the inclined surface from the top of the blade toward the base is substantially uniform in each vertical section from the center to the outer periphery. It can reduce the movement of water and clothes in the horizontal and outer directions in the washing and drying processes in the substantially horizontal direction and the outer periphery, and can suppress damage to the clothes due to friction with the rotating wings and generation of static electricity. .
[0023]
According to a second aspect of the present invention, in the first aspect of the present invention, the rotary wing is configured such that the inclined surface of the blade is a concave curved surface that rises in an arc from the base to the top of the blade. When the rotary wing rotates, the blade directly exerts a force for scooping water or clothing from below, so that the up-and-down movement of the clothing becomes large and unevenness in washing and drying can be reduced.
[0024]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the rotor extends the blade to the outer periphery of the rotor and is higher than the outer peripheral surface of the base of the rotor. Even when the amount of clothing is small, the clothing stuck into the inner tub after dehydration is easily peeled off, and the drying time can be shortened.
[0025]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components having the same configuration as the conventional example are denoted by the same reference numerals, and description thereof is omitted.
[0026]
(Example 1)
As shown in FIGS. 1 and 2, the rotary wing 27 has a rotation center axis in a substantially vertical direction and is rotatably disposed on the inner bottom of the inner tub 4 that stores clothes, and stirs clothes. Four blades 29 extending from the center to the outer peripheral direction are provided on a mortar-shaped base 28 that rises in the outer peripheral direction, and the inclination of the inclined surface 31 from the top 30 of the blade 29 toward the base 28 is reduced. Each longitudinal section from the center to the outer periphery is made substantially uniform.
[0027]
That is, the central portion of the base 28 has a connection portion with the washing / dehydrating shaft 5 so as to form a mountain shape. The base 28 is formed in a mortar shape that once lowers toward the outer periphery, passes through the lowermost surface, and further increases toward the outer periphery by drawing a curved surface. The blades 29 are formed on the base 28 and have a necessary height starting from the top of the mountain at the center and extending along the curved surface of the base 28 from the center to the outer periphery so that water and clothes are evenly caught. Further, a horizontal portion 32 is provided near the outer periphery, and has a shape extending to the outer periphery at the same height.
[0028]
Here, as shown in FIG. 3, in the cross section of the blade 29, the slope of the inclined surface 31 from the top 30 to the base 28 is constant θ in each of the parts A to D. For this reason, when the distance from the top 30 of the blade 29 to the base 28 is large, the width of the base is increased, and conversely, when the distance from the top 30 of the blade 29 to the base 28 is small, the width of the base is narrow. 33 is determined. Other configurations are the same as the conventional example.
[0029]
The operation of the above configuration will be described. The basic operations of the washing, rinsing, dehydrating, and drying steps are the same as those in the conventional example, and thus description thereof is omitted.
[0030]
In the washing process, the rotating blades 27 are rotated so that water or clothes are hooked on the blades 29 of the rotating blades 27 and stirred to perform washing. At this time, as shown in FIG. 4, the force F acting on the inclined surface 31 of the blade 29 acts in a direction substantially perpendicular to the inclined surface 31. On the other hand, since the slope of the inclined surface 31 of the blade 29 is set to a constant θ, even if water or clothing hits any part of the blade 29, the force F acts in the diagonally upward direction (90-θ) ゜, and It is less likely to move in a substantially horizontal direction and an outer peripheral direction along the line, and is stirred.
[0031]
Experiments have shown that by setting the angle of the gradient θ to 42 to 45 °, the clothes can move well in the up-down direction, and washing can be performed without applying excessive force to the motor 10. I have confirmed.
[0032]
In the drying process, the clothes are hooked on the blades 29 of the rotating blade 27 to be stirred and dried by rotating the rotating blade 27. At this time, as described above, even if the garment hits any part of the blade 29, the force F acts in the diagonally upper direction (90-θ) ゜, and moves along the blade 29 in a substantially horizontal direction and an outer peripheral direction. Less likely to change clothes up and down.
[0033]
By repeating the stirring and drying while uniformly applying warm air to the clothes, damage to the clothes due to friction with the rotating wings 27 and generation of static electricity can be suppressed, and the drying time can be shortened.
[0034]
As described above, according to the present embodiment, the rotary wing 27 has the four blades 29 extending from the center in the outer circumferential direction on the mortar-shaped base 28 that rises in the outer circumferential direction. Since the slope of the inclined surface 31 from the top 30 to the base 28 is made substantially uniform in each longitudinal section from the center to the outer periphery, the water and clothes in the washing and drying processes are substantially horizontal and the outer periphery. The movement in the direction can be reduced, and the damage of clothes and the generation of static electricity due to friction with the rotating wings 27 can be suppressed.
[0035]
(Example 2)
As shown in FIG. 5, the rotary wings 34 are rotatably arranged on the inner bottom of the inner tank and stir the clothes. 6, the inclined surface 38 extending from the top portion 37 of the blade 36 toward the base 35 in an arc from the base 35 to the top portion 37 of the blade 36 as shown in FIG. It has a concave surface. Other configurations are the same as those in the first embodiment.
[0036]
The operation of the above configuration will be described. The basic operations of the washing, rinsing, dehydrating, and drying steps are the same as those in the conventional example, and thus description thereof is omitted.
[0037]
In the washing process, the rotating blades 34 are rotated, so that water or clothing is hooked on the blades 36 of the rotating blades 34 and agitated for washing. At this time, a force acts on the water that has hit the blade 36 in the direction of the angle of (90-θ) 、, and at the same time, as shown by an arrow a in FIG. Since the water is generated, the water in the inner tank circulates up and down well, and the cleaning effect can be enhanced.
[0038]
In the drying process, the clothes are hooked on the blades 36 of the rotating wings 34 and stirred for drying by rotating the rotating wings 34. At this time, a force is applied to the clothing that has hit the blade 36 in the direction of the angle of (90-θ) ゜, and at the same time, as shown by an arrow a in FIG. Thus, the clothes can be moved more vigorously upward.
[0039]
As described above, according to the present embodiment, the inclined surface 38 of the blade 36 of the rotary blade 34 is a concave curved surface that rises in an arc from the base 35 to the top portion 37 of the blade 36, so that the rotary blade 34 rotates during the washing and drying processes. At this time, a force for scooping water or clothing directly from below is exerted by the blades 36, so that the up-and-down movement of the clothing is increased, and unevenness in washing and drying can be reduced.
[0040]
(Example 3)
As shown in FIG. 7, the rotating blades 39 are rotatably disposed on the inner bottom of the inner tank and stir the clothes. And a plurality of blades 41 extending from the outer periphery to the outer periphery of the rotary wing 39 so as to be higher than the outer circumferential surface of the base 40 by a height h.
[0041]
A horizontal portion 42 is provided in the vicinity of the outer peripheral portion of the blade 41 so that an excessive force is not applied to the motor 10 and there is no problem in strength. And Other configurations are the same as those in the first or second embodiment.
[0042]
The height h of the blade 41 is set to an optimum height for removing a small amount of clothing (about 1 kg). This is because, when there are many clothes, the clothes are peeled to some extent due to their own weight, and when the height h of the blades 41 is too high when there are many clothes, excessive force acts on the blades 41 and the load on the motor 10 increases. Because. The inventors have confirmed by experiments that when the height h of the blades 41 is 7 mm to 15 mm, even a small amount of clothing can remove the clothing from the inner tank, and that there is no problem even when there is a large amount of clothing. I have.
[0043]
The operation of the above configuration will be described. The basic operations of the washing, rinsing, dehydrating, and drying steps are the same as those in the conventional example, and thus description thereof is omitted.
[0044]
In the dehydration process, when the inner tub is rotated at a high speed and centrifugal force is applied to the clothes to dehydrate them, the clothes are stuck in the inner tub. Subsequently, the process shifts to the drying process. At this time, the rotating blades 39 are rotated, and the clothing stuck into the inner tank is hooked by the outer peripheral tip of the blade 41 of the rotating blades 39, thereby removing the clothing from the inner tank. By rotating the rotary blade 39, the clothing peeled from the inner tank is hooked on the blade 41 of the rotary blade 39, stirred and dried. Thereby, the drying time can be shortened.
[0045]
As described above, according to the present embodiment, the blade 41 of the rotary wing 39 extends to the outer circumference of the rotary wing 39 and is higher than the outer circumferential surface of the base 40 of the rotary wing 39, so that the amount of clothing is small. Even at this time, the clothes stuck into the inner tub after dehydration are easily peeled off, and the drying time can be reduced.
[0046]
【The invention's effect】
As described above, according to the invention described in claim 1 of the present invention, the rotating blades rotatably disposed on the inner bottom portion of the inner tank are placed on a mortar-shaped base that rises in the outer peripheral direction. Since it has a plurality of blades extending from the center to the outer peripheral direction, and the gradient of the inclined surface from the top of the blade to the base is substantially uniform in each vertical section from the center to the outer periphery, the washing and drying processes The movement of water or clothing in a substantially horizontal direction and in the outer peripheral direction can be reduced, and damage to clothing and generation of static electricity due to friction with the rotor can be suppressed.
[Brief description of the drawings]
FIG. 1 is a perspective view of a rotating blade of a washing and drying machine according to a first embodiment of the present invention. FIG. 2 is a sectional view of the washing and drying machine. FIG. 3 (a) is a sectional view of a rotating blade of the washing and drying machine. (B) AA sectional view of the rotor of the washing / drying machine (c) B-B sectional view of the rotating blade of the washing / drying machine (d) C-C section of the rotating blade of the washing / drying machine FIG. 4E is a sectional view taken along line DD of the rotor of the washing and drying machine. FIG. 4 is an explanatory view of the force acting on the blades of the rotor of the washing and drying machine. FIG. 5 is a view of a second embodiment of the present invention. FIG. 6 is a cross-sectional view of the blades of the rotor of the washing and drying machine. FIG. 7 is a cross-sectional view of the rotor of the washing and drying machine according to the third embodiment of the present invention. Cross section of conventional washer / dryer [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing 2 Suspension 3 Outer tub 4 Inner tub 11 Motor (drive means)
14 Drying blower (hot air blowing means)
15 heater (hot air blowing means)
27 Rotary wing 28 Base 29 Blade 30 Top 31 Slope

Claims

An outer tank supported by a plurality of suspensions in a housing, an inner tank rotatably disposed in the outer tank, a rotating blade rotatably disposed on an inner bottom of the inner tank, A driving means for driving the wings, and a hot air blowing means for blowing hot air into the inner tank, wherein the rotary wings are arranged on a mortar-shaped base that rises in the outer peripheral direction, A washing / drying machine having a plurality of blades extending from the top to the base, wherein the slope of the slope from the top of the blade toward the base is substantially uniform in each vertical section from the center to the outer periphery.

The washing / drying machine according to claim 1, wherein the rotating blade has a sloped surface of the blade having a concave curved surface rising in an arc from the base to the top of the blade.

The washing / drying machine according to claim 1, wherein the rotating blade has a blade extending to an outer periphery of the rotating blade so as to be higher than an outer peripheral surface of a base of the rotating blade.