JP3893728B2

JP3893728B2 - Drum washing machine

Info

Publication number: JP3893728B2
Application number: JP09433698A
Authority: JP
Inventors: 俊一岩切
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1998-04-07
Filing date: 1998-04-07
Publication date: 2007-03-14
Anticipated expiration: 2018-04-07
Also published as: JPH11290583A

Description

【０００１】
【発明の属する技術分野】
本発明は、略水平方向の回転軸を中心に回転自在に配設したドラム内で洗濯物を洗濯、すすぎ、脱水するドラム式洗濯機に関するものである。
【０００２】
【従来の技術】
従来、この種のドラム式洗濯機は図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、回転ドラム１は、外周部に多数の通水孔２を全面に設け、外槽３内に回転自在に配設している。回転ドラム１の回転中心に回転軸４の一端を略水平方向に固定し、回転軸４の他端に従動プーリー５を固定している。第１のモータ（駆動モータ）６は、回転ドラム１を第１の回転数Ｎ１（たとえば、５３ｒｐｍ）で回転させて、洗濯またはすすぎをするものであり、第２のモータ（駆動モータ）７は、回転ドラム１を第２の回転数Ｎ２（たとえば、１０００ｒｐｍ）で回転させて脱水する。
【０００４】
これら第１のモータ６および第２のモータ７は、それぞれベルト８、９を介して従動プーリー５に連結している。従動プーリー５は、２種の減速比を有しており、第１のモータ６をベルト８を介して減速比が大きい従動プーリー５ａと連結し、第２のモータ７をベルト９を介して減速比が小さい従動プーリー５ｂと連結している。
【０００５】
外槽３は、ボデー１０よりばね体１１で揺動可能に吊り下げ、防振ダンパー１２により脱水起動時の振動が低減され、定常脱水時の振動がボデー１０に伝達されにくいように防振支持するとともに、脱水時の振動を低減する重り１３を設けている。ボデー前面開口部に蓋１４を開閉自在に設けている。
【０００６】
外槽３の底部側にヒータ１５を設けて外槽３内の洗濯水を加熱し、さらに排水用の排水ホース１６の一端を接続し、排水ホース１６の他端を、内部に着脱自在に異物ストッパー１７を有する略Ｔ字状のジョイント１８に接続し、略Ｔ字状のジョイント１８の他端を排水ポンプ１９と接続し、外槽３内の洗濯水を異物ストッパー１７を介して排水するようにしている。
【０００７】
給水弁２０は外槽３内に水を給水するものである。制御装置２１は、第１のモータ６、第２のモータ７、ヒータ１６、排水ポンプ１９、給水弁２０などの動作を制御し、洗濯、すすぎ、脱水などの一連の行程を逐次制御する。
【０００８】
略Ｔ字状のジョイント１８は、図９に示すように、排水ホース１６が接続される排水ホース接続部１８ａと、排水ポンプ１９につながる排水ポンプ用ホース２２が接続される排水ポンプ用ホース接続部１８ｂは略直行している。また、異物ストッパー１７の着脱部１７ａは、略Ｔ字状のジョイント１８のジョイント着脱部１８ｃに回転着脱自在に、排水ポンプ用ホース接続部１８ｂと略同心上に設けている。
【０００９】
異物ストッパー１７の先端側には、略Ｔ字状のジョイント１８の内径より径小の円盤部１７ｂを設けており、円盤部１７ｂには水抜き用の穴１７ｃを設けている。異物ストッパー１７の着脱部１７ａと円盤部１７ｂとは、複数個の細い略円筒状のボス１７ｄで連結されている。また、異物ストッパー１７の着脱部１７ａと略Ｔ字状のジョイント１８の平坦部１８ｄ間には、シールパッキン２３を挟着している。
【００１０】
上記構成において動作を説明すると、蓋１４を開いて回転ドラム１内に洗濯物を投入し、電源スイッチ（図示せず）をオンした後、制御装置２１に設けたスタートスイッチ（図示せず）を操作して運転を開始すると、給水弁２０が動作して給水および洗剤投入を行い、水位検知手段（図示せず）により所定の水位を検知すると給水を停止し、第１の駆動モータ６を駆動する。洗濯行程では、洗濯物に水が含まれるため補給水しながら、回転ドラム１は第１の駆動モータ６によって第１の回転数Ｎ１で回転駆動され、回転ドラム１内の洗濯物は持ち上げられて水面上に落下される。
【００１１】
このとき、ヒータ１５に通電して外槽３内の洗濯水をほぼ一定の温度に制御しながら加熱する。洗濯行程が終了すると、排水ポンプ１９が動作して外槽３内の洗濯水を排水する。このとき、洗濯水は矢印ａのように略Ｔ字状のジョイント１８内に流れ込み、矢印ｂのように複数個の細い略円筒状のボス１７ｄの間を抜け、水抜き用の穴１７ｃから流れるものと、矢印ｃのように略Ｔ字状のジョイント１８の内壁と円盤部１７ｂの外周との間を流れるものとに別れる。その後、それらの流れは一つになり、矢印ｄのように排水ポンプ１９に流れ込む。すすぎ行程においても洗濯行程と同様の動作を行う。
【００１２】
【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、異物ストッパー１７は、先端側に略Ｔ字状のジョイント１８の内径より径小で、水抜き用の穴１７ｃを設けている円盤部１７ｂを有し、異物ストッパー１７の着脱部１７ａと円盤部１７ｂとは、複数個の細い略円筒状のボス１７ｄで連結されているものであるため、排水時、洗濯水に爪楊枝や釘などの異物が混入していた場合、水抜き用の穴１７ｃや略Ｔ字状のジョイント１８の内壁と円盤部１７ｂの外周との隙間から排水ポンプ１９内に流れ込んでしまうという問題を有していた。
【００１３】
また、洗濯水にリントや長短の毛髪などが混入していた場合は、水抜き用の穴１７ｃ同士間や複数個の細い略円筒状のボス１７ｄにリントや長短の毛髪などが絡み付き、そのリントや長短の毛髪などが徐々に成長していき、排水ポンプ１９に絡み付いてしまったりして、排水ポンプ１９がロックしてしまい、排水をしなくなるといった問題を有していた。
【００１４】
本発明は上記従来の課題を解決するもので、排水ポンプをロックさせる爪楊枝や釘などの異物は排水ポンプへ流れ込むのを防ぎ、リントや長短の毛髪などは異物ストッパーに絡み付くのを防ぐことにより、排水ポンプのロックをなくし、排水をしなくなるのを防止することを目的としている。
【００１５】
【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、外槽の底部に排水ホースを連結し、外槽内の洗濯水を排水ポンプにより強制排水し、排水ホースの接続部と排水ポンプの接続部が略直行し、かつ排水ポンプの接続部と略同心上に着脱自在に異物ストッパーを内部に有する略Ｔ字状のジョイントを設ける。異物ストッパーの先端側には略Ｔ字状のジョイントの内径より径小の円盤部を設け、異物ストッパーの着脱部と円盤部とはその略中央部より放射状に延びた複数本のリブで連結したものである。
【００１６】
これにより、排水ポンプをロックさせる爪楊枝や釘などの異物が排水ポンプへ流れ込むのを防ぎ、リントや長短の毛髪などは異物ストッパーに絡み付くのを防ぐことができ、排水ポンプのロックをなくし、排水をしなくなるのを防止することができる。
【００１７】
【発明の実施の形態】
本発明の請求項１に記載の発明は、略水平方向に回転軸を有する回転ドラムと、この回転ドラムを外包した外槽と、前記回転ドラムを回転させる駆動モータと、前記外槽を主体とする揺動体を揺動可能に収容したボデーと、前記外槽の底部に連結した排水ホースと、前記外槽内の洗濯水を強制排水する排水ポンプと、前記排水ホースの接続部と前記排水ポンプの接続部が略直行しかつ前記排水ポンプの接続部と略同心上に着脱自在に異物ストッパーを内部に有する略Ｔ字状のジョイントとを備え、前記異物ストッパーの先端側には前記略Ｔ字状のジョイントの内径より径小の円盤部を設け、前記異物ストッパーの着脱部と前記円盤部とはその略中央部より放射状に延びた複数本のリブで連結したものであり、排水ポンプをロックさせる爪楊枝や釘などの異物が排水ポンプへ流れ込むのを防ぎ、リントや長短の毛髪などは、放射状に延びた複数本のリブに引っかかった場合でも、放射状のリブによる乱流により、長い毛髪をリブから浮かすことができて、流し出すことができ、異物ストッパーに絡み付くのを防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００１８】
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、接続体の略中央部より放射状に延びた複数本のすべてのリブが排水ホースの接続方向と角度を有するものであり、リブの左右に異なる乱流が発生し、リブの左右で排水の流れが異なる。したがって、長い毛髪が流れ込み、リブに左右均等の長さで引っかかった場合でも、乱流によって長い毛髪をリブから浮かして流し出すことができ、リントや長短の毛髪などが異物ストッパーに絡み付くのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００１９】
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、異物ストッパーの先端側に設けた円盤部は、その中央側を外周側より排水の流れの下流側に凸としたものであり、排水ポンプをロックさせる爪楊枝や釘などの異物の捕集能力を向上させることができ、異物が排水ポンプへ流れ込むのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００２０】
請求項４に記載の発明は、上記請求項１〜３に記載の発明において、略Ｔ字状のジョイントの内面側には、異物ストッパーの先端側に設けた円盤部の下流側に前記円盤部の外径より小となる内径の穴を有する略環状のリブを設けたものであり、水の流れは、略Ｔ字状のジョイントの内面と円盤部との隙間を通り、円盤部と略環状のリブの間を抜けて流れるため、排水ポンプをロックさせる爪楊枝や釘などの異物の捕集能力をさらに向上させることができ、異物が排水ポンプへ流れ込むのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００２１】
請求項５に記載の発明は、上記請求項４に記載の発明において、略環状のリブの内径先端部を外周側より排水の流れの上流側に凸としたものであり、爪楊枝や釘などの大きい異物は、略環状のリブでできた凹部に引っかかることとなるため、排水ポンプをロックさせる爪楊枝や釘などの異物の捕集能力をさらに向上させることができ、異物が排水ポンプへ流れ込むのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００２２】
【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。
【００２３】
（実施例１）
図１および図２に示すように、略Ｔ字状のジョイント２４は、外槽３の底部と連結した排水ホース１６が接続される排水ホース接続部２４ａと、排水ポンプ１９につながる排水ポンプ用ホース２２が接続される排水ポンプ用ホース接続部２４ｂとを略直行させている。また、異物ストッパー２５の着脱部２５ａは、略Ｔ字状のジョイント２４のジョイント着脱部２４ｃに回転着脱自在に、排水ポンプ用ホース接続部２４ｂと略同心上に設けている。
【００２４】
異物ストッパー２５の排水ポンプ用ホース接続部２４ｂ側には、排水ポンプ用ホース接続部２４ｂの内径より径小の円盤部２５ｂを設けている。また、異物ストッパー２５の着脱部２５ａと円盤部２５ｂとは、１本の円筒体（接続体）２５ｅで連結されている。他の構成は従来例と同じである。
【００２５】
上記構成において動作を説明すると、排水ポンプ１９が動作して外槽３内の洗濯水を排水すると、排水された洗濯水は矢印ｅのように略Ｔ字状のジョイント２４の排水ホース接続部２４ａ内に流れ込み、矢印ｆのように１本の円筒体２５ｅを回り込み、略Ｔ字状のジョイント２４の内壁と円盤部２５ｂの外周との間を流れ出る。その後、矢印ｇのように排水ポンプ用ホース２２を通り、排水ポンプ１９に流れ込む。
【００２６】
このような構成にすると、円盤部２５ｂには、水抜き穴などの穴形状がないため、排水された洗濯水に爪楊枝や釘などの異物が混入していた場合でも、穴を異物がすり抜けていくことはなく、異物により排水ポンプ１９がロックしてしまうといった問題を防止することができる。また、洗濯水にリントや長短の毛髪などが混入していた場合でも、リントや長短の毛髪などが異物ストッパー２５に絡み付き、そのリントや長短の毛髪などが徐々に成長していき、排水ポンプ１９に絡み付き、排水ポンプ１９がロックしてしまい、排水をしなくなるといった問題も防止することができる。
【００２７】
なお、本実施例では、異物ストッパー２５の着脱部２５ａと円盤部２５ｂの連結に円筒体２５ｅを用いているが、円筒体でなくても、単数個の接続体であれば、同等の効果を得ることができる。
【００２８】
（実施例２）
図３に示すように、異物ストッパー２６は、排水ポンプ用ホース接続部２４ｂ側には、排水ポンプ用ホース接続部２４ｂの内径より径小の円盤部２６ｂを設けている。また、異物ストッパー２６の着脱部２６ａと円盤部２６ｂとは、その略中央部より放射状に延びた複数本のリブ（接続体）２６ｆで連結している。他の構成は上記実施例１と同じである。
【００２９】
上記構成において動作を説明すると、排水ポンプ１９が動作して外槽３内の洗濯水を排水すると、排水された洗濯水は矢印ｅのように略Ｔ字状のジョイント２４の排水ホース接続部２４ａ内に流れ込み、矢印ｈのように略Ｔ字状のジョイント２４の内壁と円盤部２６ｂの外周との間を流れ出るものと、矢印ｉのように放射状に延びた複数本のリブ２６ｆ間で乱流を起こすものとに別れる。その後、矢印ｇのように排水ポンプ用ホース２２を通り、排水ポンプ１９に流れ込む。
【００３０】
上記実施例１の構成では、長い毛髪が洗濯水とともに排水され、１本の円筒体２５ｅに長い毛髪が引っかかった場合、その長い毛髪は異物ストッパー２５に絡み付いてしまう可能性があった。
【００３１】
本実施例では、異物ストッパー２６の着脱部２６ａと円盤部２６ｂとを、その略中央部より放射状に延びた複数本のリブ２６ｆで連結しているので、長い毛髪が流れ込み、放射状に延びた複数本のリブ２６ｆに引っかかった場合でも、矢印ｉの乱流により、長い毛髪を放射状に延びた複数本のリブ２６ｆから浮かすことができ、流し出すことができる。
【００３２】
これにより、洗濯水にリントや長短の毛髪などが混入していた場合でも、リントや長短の毛髪などが異物ストッパー２６に絡み付き、そのリントや長短の毛髪などが徐々に成長していき、排水ポンプ１９に絡み付き、排水ポンプ１９がロックしてしまい、排水をしなくなるといった問題も防止することができる。
【００３３】
なお、本実施例では、放射状リブの数は３本であるが、そのリブの本数は略中央部で隙間なく接続されていれば、３本以下でも、以上でも同等の効果を得ることができる。
【００３４】
（実施例３）
図４に示すように、接続体の略中央部より放射状に延びた複数本のリブ２６ｆのすべてが、排水ホース接続部２４ａの中心線方向と角度を有している。例えば、排水ホース接続部２４ａに対応するリブ２６ｇは排水ホース接続部２４ａの中心線方向と角度αを有している。他の構成は上記実施例２と同じである。
【００３５】
上記実施例２の構成では、長い毛髪が洗濯水とともに排水され、接続体の略中央部より放射状に延びた複数本のリブ２６ｆのうち１本が、排水ホース接続部２４ａの中心線方向と平行である場合、そこに長い毛髪が左右均等の長さで引っかかると、そのリブ２６ｆの左右では排水の流れは左右均等であるため、その長い毛髪は流れにくい可能性があった。
【００３６】
本実施例では、接続体の略中央部より放射状に延びた複数本のすべてのリブ２６ｆが排水ホース接続部２４ａの中心線方向と角度を有しているので、矢印ｊの流れは強い乱流になり、矢印ｉの流れは弱い乱流になるため、リブ２６ｇの左右で排水の流れは異なる。したがって、長い毛髪が流れ込み、リブ２６ｇに左右均等の長さで引っかかった場合でも、強い乱流矢印ｊにより長い毛髪をリブ２６ｇから浮かし、矢印ｉの流れのほうに流し出すことができる。
【００３７】
これにより、洗濯水にリントや長短の毛髪などが混入し、複数本のリブ２６ｆのうち１本に左右均等の長さで引っかかった場合でも、その長い毛髪を流し出すことができるため、リントや長短の毛髪などが異物ストッパー２６に絡み付き、そのリントや長短の毛髪などが徐々に成長していき、排水ポンプ１９に絡み付き、排水ポンプ１９がロックしてしまい、排水をしなくなるといった問題も防止することができる。
【００３８】
なお、本実施例では、放射状リブ２６ｆの数は３本であるが、３本以下でも、以上でも同等の効果を得ることができる。
【００３９】
（実施例４）
図５に示すように、異物ストッパー２７は、排水ポンプ用ホース接続部２４ｂ側に設けた円盤部２７ｂの外周部には、その外周縁に添って、着脱部２７ａ方向に凸となるように異物ストッパー円筒リブ２７ｈを設けている。他の構成は上記実施例１〜３と同じである。
【００４０】
上記実施例３の構成では、排水された洗濯水に爪楊枝や釘などの異物が混入していた場合、異物が円盤部２６ｂに当たってもその先端が滑ってしまい、その異物を捕獲できない可能性があった。
【００４１】
本実施例では、円盤部２７ｂの外周部に外周縁に添って、着脱部２７ａ方向に凸となるように異物ストッパー円筒リブ２７ｈを設けているので、矢印ｍの流れは円盤部２７ｂと異物ストッパー円筒リブ２７ｈでできた異物ストッパー凹部２７ｉ内で乱流になる。
【００４２】
このとき、毛髪やリントなどの軽いものは流されていまい、爪楊枝や釘などの大きい異物２８は、図に示すように、異物ストッパー凹部２７ｉに引っかかることとなる。したがって、爪楊枝や釘などの異物の捕獲能力を向上させることができ、異物により排水ポンプ１９がロックしてしまうといった問題を防止することができる。
【００４３】
なお、本実施例では、円盤部２７ｂの外周部に着脱部２７ａ方向に凸となるように異物ストッパー円筒リブ２７ｈを設けたが、円盤部２７ｂの形状を、中央部が排水ポンプ用ホース接続部２４ｂ方向に凸となる円錐形状にしても同等の効果が得られることはいうまでもない。
【００４４】
（実施例５）
図６に示すように、略Ｔ字状のジョイント２９は、排水ポンプ用ホース接続部２９ｂの内面側に、異物ストッパー３０の先端側に設けた円盤部３０ｂの下流側に、円盤部３０ｂの外径より小となる内径の穴２９ｅを有する略環状のリブ２９ｆを設けている。他の構成は上記実施例１〜４と同じである。
【００４５】
上記実施例１〜４の構成では、排水された洗濯水に爪楊枝や釘などの異物が混入していた場合、異物が異物ストッパーの円盤部と排水ポンプ用ホース接続部の内面との隙間を流れてしまう可能性があった。
【００４６】
本実施例では、排水ポンプ用ホース接続部２９ｂの内面側に、円盤部３０ｂの外径より小となる内径の穴２９ｅを有する略環状のリブ２９ｆを設けているので、矢印ｎの流れは円盤部３０ｂと排水ポンプ用ホース接続部２９ｂの内面との隙間を通り、円盤部３０ｂと略環状のリブ２９ｆの間を抜け、矢印ｇのように排水ポンプ１９に流れる。
【００４７】
このとき、毛髪やリントなどは流されていまい、爪楊枝や釘などの大きい異物２８は、図に示すように、略環状のリブ２９ｆに引っかかることとなる。したがって、爪楊枝や釘などの異物の捕獲能力を向上させることができ、異物により排水ポンプ１９がロックしてしまうといった問題を防止することができる。
【００４８】
（実施例６）
図７に示すように、略Ｔ字状のジョイント３１は、略環状のリブ３１ｆの穴３１ｅに添って、ジョイント着脱部３１ｃ方向に凸となるようにジョイント円筒リブ３１ｇを設けている。他の構成は上記実施例５と同じである。
【００４９】
上記実施例５の構成では、排水された洗濯水に爪楊枝や釘などの異物が混入していた場合、異物が略環状のリブ２９ｆに当たってもその先端が滑ってしまい、その異物を捕獲できない可能性があった。
【００５０】
本実施例では、略環状のリブ３１ｆの穴３１ｅに添って、ジョイント着脱部３１ｃ方向に凸となるようにジョイント円筒リブ３１ｇを設けているので、矢印ｐの流れは略環状のリブ３１ｆとジョイント円筒リブ３１ｇでできたジョイント凹部３１ｈ内で乱流になる。
【００５１】
このとき、毛髪やリントなどの軽いものは流されていまい、爪楊枝や釘などの大きい異物２８は、図に示すように、ジョイント凹部３１ｈに引っかかることとなる。したがって、爪楊枝や釘などの異物の捕獲能力をさらに向上させることができ、異物により排水ポンプがロックしてしまうといった問題を防止することができる。
【００５２】
なお、本実施例では、略環状のリブ３１ｆの穴３１ｅに添って、ジョイント着脱部３１ｃ方向に凸となるようにジョイント円筒リブ３１ｇを設けたが、略環状のリブ３１ｆの形状を、ジョイント着脱部３１ｃ方向に凸となる円錐形状にしても同等の効果が得られることはいうまでもない。
【００５３】
【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、略水平方向に回転軸を有する回転ドラムと、この回転ドラムを外包した外槽と、前記回転ドラムを回転させる駆動モータと、前記外槽を主体とする揺動体を揺動可能に収容したボデーと、前記外槽の底部に連結した排水ホースと、前記外槽内の洗濯水を強制排水する排水ポンプと、前記排水ホースの接続部と前記排水ポンプの接続部が略直行しかつ前記排水ポンプの接続部と略同心上に着脱自在に異物ストッパーを内部に有する略Ｔ字状のジョイントとを備え、前記異物ストッパーの先端側には前記略Ｔ字状のジョイントの内径より径小の円盤部を設け、前記異物ストッパーの着脱部と前記円盤部とはその略中央部より放射状に延びた複数本のリブで連結したから、排水ポンプをロックさせる爪楊枝や釘などの異物は排水ポンプへ流れ込むのを防ぎ、リントや長短の毛髪などは、放射状に延びた複数本のリブに引っかかった場合でも、放射状のリブによる乱流により、長い毛髪をリブから浮かすことができて、流し出すことができ、異物ストッパーに絡み付くのを防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００５４】
また、請求項２に記載の発明によれば、接続体の略中央部より放射状に延びた複数本のすべてのリブが排水ホースの接続方向と角度を有するから、リブの左右に異なる乱流が発生し、乱流によって長い毛髪をリブから浮かして流し出すことができ、リントや長短の毛髪などが異物ストッパーに絡み付くのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００５５】
また、請求項３に記載の発明によれば、異物ストッパーの先端側に設けた円盤部は、その中央側を外周側より排水の流れの下流側に凸としたから、排水ポンプをロックさせる爪楊枝や釘などの異物の捕集能力を向上させることができ、異物が排水ポンプへ流れ込むのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００５６】
また、請求項４に記載の発明によれば、略Ｔ字状のジョイントの内面側には、異物ストッパーの先端側に設けた円盤部の下流側に前記円盤部の外径より小となる内径の穴を有する略環状のリブを設けたから、水の流れは、略Ｔ字状のジョイントの内面と円盤部との隙間を通り、円盤部と略環状のリブの間を抜けて流れるため、排水ポンプをロックさせる爪楊枝や釘などの異物の捕集能力をさらに向上させることができ、異物が排水ポンプへ流れ込むのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【００５７】
また、請求項５に記載の発明によれば、略環状のリブの内径先端部を外周側より排水の流れの上流側に凸としたから、爪楊枝や釘などの大きい異物は、略環状のリブでできた凹部に引っかかることとなるため、排水ポンプをロックさせる爪楊枝や釘などの異物の捕集能力をさらに向上させることができ、異物が排水ポンプへ流れ込むのをさらに防ぎ、排水ポンプのロックをなくすことにより、排水をしなくなるのを防止することができる。
【図面の簡単な説明】
【図１】（ａ）本発明の第１の実施例のドラム式洗濯機の一部切欠した要部断面図
（ｂ）同ドラム式洗濯機の一部切欠した要部側断面図
【図２】同ドラム式洗濯機の断面図
【図３】（ａ）本発明の第２の実施例のドラム式洗濯機の一部切欠した要部断面図
（ｂ）同ドラム式洗濯機の一部切欠した要部側断面図
【図４】本発明の第３の実施例のドラム式洗濯機の一部切欠した要部側断面図
【図５】本発明の第４の実施例のドラム式洗濯機の一部切欠した要部断面図
【図６】本発明の第５の実施例のドラム式洗濯機の一部切欠した要部断面図
【図７】本発明の第６の実施例のドラム式洗濯機の一部切欠した要部断面図
【図８】従来のドラム式洗濯機の断面図
【図９】同ドラム式洗濯機の一部切欠した要部断面図
【符号の説明】
１回転ドラム
３外槽
６第１のモータ（駆動モータ）
７第２のモータ（駆動モータ）
１０ボデー
１６排水ホース
１９排水ポンプ
２４略Ｔ字状のジョイント
２５異物ストッパー
２５ａ着脱部
２５ｂ円盤部
２５ｅ円筒体（接続体）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drum type washing machine for washing, rinsing, and dewatering laundry in a drum that is rotatably arranged around a substantially horizontal rotation axis.
[0002]
[Prior art]
Conventionally, this type of drum type washing machine is configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 8, the rotating drum 1 is provided with a large number of water passage holes 2 on the entire outer periphery thereof, and is rotatably disposed in the outer tub 3. One end of the rotary shaft 4 is fixed in a substantially horizontal direction at the rotation center of the rotary drum 1, and a driven pulley 5 is fixed on the other end of the rotary shaft 4. The first motor (drive motor) 6 rotates the rotary drum 1 at a first rotation speed N1 (for example, 53 rpm) to perform washing or rinsing, and the second motor (drive motor) 7 Then, the rotating drum 1 is dehydrated by rotating at a second rotation speed N2 (for example, 1000 rpm).
[0004]
The first motor 6 and the second motor 7 are connected to the driven pulley 5 via belts 8 and 9, respectively. The driven pulley 5 has two types of reduction ratios. The first motor 6 is connected to a driven pulley 5a having a large reduction ratio via a belt 8, and the second motor 7 is reduced via a belt 9. It is connected to a driven pulley 5b having a small ratio.
[0005]
The outer tub 3 is suspended from the body 10 so as to be swingable by a spring body 11, and vibrations at the time of dehydration start are reduced by the vibration isolation damper 12, so that vibration at the time of steady dehydration is not easily transmitted to the body 10. In addition, a weight 13 for reducing vibration during dehydration is provided. A lid 14 is provided at the opening on the front of the body so as to be freely opened and closed.
[0006]
A heater 15 is provided on the bottom side of the outer tub 3 to heat the washing water in the outer tub 3, and further, one end of a drainage hose 16 for drainage is connected, and the other end of the drainage hose 16 is detachably attached to the inside. It is connected to a substantially T-shaped joint 18 having a stopper 17, the other end of the substantially T-shaped joint 18 is connected to a drainage pump 19, and the washing water in the outer tub 3 is drained through the foreign matter stopper 17. I have to.
[0007]
The water supply valve 20 supplies water into the outer tub 3. The control device 21 controls operations of the first motor 6, the second motor 7, the heater 16, the drain pump 19, the water supply valve 20, and the like, and sequentially controls a series of processes such as washing, rinsing, and dehydration.
[0008]
As shown in FIG. 9, the substantially T-shaped joint 18 includes a drainage hose connection part 18 a to which the drainage hose 16 is connected and a drainage pump hose connection part to which the drainage pump hose 22 connected to the drainage pump 19 is connected. 18b is substantially orthogonal. Further, the attachment / detachment portion 17a of the foreign matter stopper 17 is provided substantially concentrically with the drainage pump hose connection portion 18b so as to be rotatable and detachable from the joint attachment / detachment portion 18c of the substantially T-shaped joint 18.
[0009]
A disc portion 17b having a diameter smaller than the inner diameter of the substantially T-shaped joint 18 is provided on the distal end side of the foreign matter stopper 17, and a water draining hole 17c is provided in the disc portion 17b. The attaching / detaching portion 17a and the disc portion 17b of the foreign matter stopper 17 are connected by a plurality of thin substantially cylindrical bosses 17d. A seal packing 23 is sandwiched between the attaching / detaching portion 17 a of the foreign material stopper 17 and the flat portion 18 d of the substantially T-shaped joint 18.
[0010]
To explain the operation in the above configuration, the lid 14 is opened, the laundry is put into the rotary drum 1, the power switch (not shown) is turned on, and then the start switch (not shown) provided in the control device 21 is turned on. When the operation is started, the water supply valve 20 is operated to supply water and detergent, and when a predetermined water level is detected by a water level detection means (not shown), the water supply is stopped and the first drive motor 6 is driven. To do. In the washing process, since the laundry contains water, the revolving drum 1 is driven to rotate at the first rotation speed N1 by the first drive motor 6 while supplying water, and the laundry in the rotating drum 1 is lifted. Dropped on the water surface.
[0011]
At this time, the heater 15 is energized and heated while controlling the wash water in the outer tub 3 at a substantially constant temperature. When the washing process ends, the drain pump 19 operates to drain the washing water in the outer tub 3. At this time, the washing water flows into the substantially T-shaped joint 18 as indicated by an arrow a, passes through a plurality of thin substantially cylindrical bosses 17d as indicated by an arrow b, and flows from the drain hole 17c. And those that flow between the inner wall of the substantially T-shaped joint 18 and the outer periphery of the disk portion 17b as shown by the arrow c. Thereafter, these flows become one and flow into the drainage pump 19 as indicated by an arrow d. In the rinsing process, the same operation as in the washing process is performed.
[0012]
[Problems to be solved by the invention]
In such a conventional configuration, the foreign matter stopper 17 has a disk portion 17b having a diameter smaller than the inner diameter of the substantially T-shaped joint 18 on the distal end side and provided with a water draining hole 17c. Since the attachment / detachment portion 17a and the disc portion 17b are connected by a plurality of thin, substantially cylindrical bosses 17d, when foreign matter such as a toothpick or a nail is mixed in the washing water during drainage, There is a problem that the water drains into the drainage pump 19 from the gap between the drain hole 17c or the inner wall of the substantially T-shaped joint 18 and the outer periphery of the disk portion 17b.
[0013]
In addition, when lint or long or short hair is mixed in the washing water, the lint or long or short hair is entangled between the drain holes 17c or a plurality of thin substantially cylindrical bosses 17d. Long and short hairs grow gradually and entangled with the drainage pump 19, causing the drainage pump 19 to lock and draining.
[0014]
The present invention solves the above-mentioned conventional problems, and prevents foreign objects such as toothpicks and nails that lock the drainage pump from flowing into the drainage pump, and prevents lint and long and short hair from getting entangled with the foreign matter stopper. The purpose is to eliminate the lock of the drainage pump and prevent the drainage from being stopped.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the present invention connects a drainage hose to the bottom of the outer tub, forcibly drains the washing water in the outer tub with a drainage pump, and the drainage hose connection and drainage pump connection are substantially perpendicular. In addition, a substantially T-shaped joint having a foreign matter stopper therein is provided substantially concentrically with the connection portion of the drainage pump . A disc portion having a diameter smaller than the inner diameter of the substantially T-shaped joint is provided on the tip side of the foreign matter stopper, and the attaching / detaching portion of the foreign matter stopper and the disc portion are connected by a plurality of ribs extending radially from the substantially central portion . Is.
[0016]
This prevents foreign objects such as toothpicks and nails that lock the drainage pump from flowing into the drainage pump, prevents lint and long and short hair from getting entangled with the foreign matter stopper, eliminates the drainage pump lock, and drains water. It is possible to prevent the failure.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention is mainly composed of a rotating drum having a rotating shaft in a substantially horizontal direction, an outer tank enclosing the rotating drum, a drive motor for rotating the rotating drum, and the outer tank. A body that oscillates a swinging body to be swung, a drain hose connected to the bottom of the outer tub, a drain pump that forcibly drains wash water in the outer tub, a connection portion of the drain hose, and the drain pump comprising of a substantially T-shaped joint connecting portion has a freely foreign matter stopper detachably on the connection portion and substantially concentric substantially orthogonal vital the drainage pump inside, the substantially T-is the front end side of the foreign substance stopper Jo of the disc portion of smaller diameter than the inner diameter of the joint is provided, wherein the foreign matter stopper of the detachable portion and the disc portion is obtained by connecting a plurality of ribs extending radially from a substantially central portion thereof, a wastewater pump Toothpick to lock Prevents foreign objects such as nails from flowing into the drainage pump, and even when lint or long or short hair is caught by multiple radially extending ribs, turbulent flow from the radial ribs causes long hair to float from the ribs. It is possible to prevent the drainage from being stopped by preventing the foreign matter stopper from getting entangled and eliminating the lock of the drainage pump.
[0018]
The invention according to claim 2 is the invention according to claim 1 , wherein all the plurality of ribs extending radially from the substantially central portion of the connection body have an angle with the connection direction of the drainage hose, Different turbulent flows occur on the left and right sides of the rib, and the flow of drainage differs on the left and right sides of the rib. Therefore, even when long hair flows in and is caught on the ribs at equal left and right lengths, the long hair can be lifted off from the ribs by turbulent flow, and lint and long and short hair can be further entangled with the foreign matter stopper. By preventing the drainage pump from being locked, it is possible to prevent the drainage from being stopped.
[0019]
The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the disk portion provided on the tip side of the foreign matter stopper is convex from the outer peripheral side toward the downstream side of the drainage flow. It can improve the ability to collect foreign objects such as toothpicks and nails that lock the drainage pump, further prevent foreign substances from flowing into the drainage pump, and eliminate drainage by eliminating the lock on the drainage pump. Can be prevented.
[0020]
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the disk portion is provided on the inner surface side of the substantially T-shaped joint on the downstream side of the disk portion provided on the distal end side of the foreign matter stopper. Is provided with a substantially annular rib having a hole with an inner diameter smaller than the outer diameter, and the flow of water passes through the gap between the inner surface of the substantially T-shaped joint and the disk part, and the disk part is substantially annular. Because it flows through the ribs, it can further improve the ability to collect foreign objects such as toothpicks and nails that lock the drainage pump, further prevent foreign substances from flowing into the drainage pump, and eliminate the drainage pump lock. Thus, it is possible to prevent the drainage from being stopped.
[0021]
The invention according to claim 5 is the invention according to claim 4 , in which the inner diameter tip portion of the substantially annular rib is protruded from the outer peripheral side to the upstream side of the flow of drainage, such as a toothpick or a nail. Large foreign matter will be caught in the recess made of a substantially annular rib, which can further improve the ability to collect foreign objects such as toothpicks and nails that lock the drainage pump, and prevent foreign matter from flowing into the drainage pump. Further prevention and elimination of the drain pump lock can prevent the drainage from being stopped.
[0022]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0023]
Example 1
As shown in FIGS. 1 and 2, the substantially T-shaped joint 24 includes a drain hose connection portion 24 a to which a drain hose 16 connected to the bottom of the outer tub 3 is connected, and a drain pump hose connected to the drain pump 19. The drainage pump hose connection part 24b to which 22 is connected is substantially perpendicular. Further, the attachment / detachment portion 25a of the foreign matter stopper 25 is provided substantially concentrically with the drainage pump hose connection portion 24b so as to be rotatable / detachable to / from the joint attachment / detachment portion 24c of the substantially T-shaped joint 24.
[0024]
A disc portion 25b having a diameter smaller than the inner diameter of the drainage pump hose connection portion 24b is provided on the foreign matter stopper 25 on the drainage pump hose connection portion 24b side. Further, the attaching / detaching portion 25a and the disk portion 25b of the foreign matter stopper 25 are connected by a single cylindrical body (connecting body) 25e. Other configurations are the same as those of the conventional example.
[0025]
The operation in the above configuration will be described. When the drainage pump 19 operates to drain the washing water in the outer tub 3, the drained washing water is drained hose connection portion 24a of the substantially T-shaped joint 24 as indicated by an arrow e. As shown by the arrow f, it flows around one cylindrical body 25e and flows out between the inner wall of the substantially T-shaped joint 24 and the outer periphery of the disk portion 25b. Thereafter, it passes through the drainage pump hose 22 as shown by the arrow g and flows into the drainage pump 19.
[0026]
In such a configuration, since the disc portion 25b does not have a hole shape such as a drain hole, even if a foreign matter such as a toothpick or a nail is mixed in the drained washing water, the foreign matter passes through the hole. The problem that the drainage pump 19 is locked by a foreign object can be prevented. Further, even if lint or long or short hair is mixed in the washing water, the lint or long or short hair is entangled with the foreign matter stopper 25, and the lint or long or short hair gradually grows, and the drainage pump 19 It is also possible to prevent the problem that the drainage pump 19 is locked and the drainage pump 19 is locked, and the drainage is not performed.
[0027]
In this embodiment, the cylindrical body 25e is used to connect the attaching / detaching portion 25a of the foreign object stopper 25 and the disk portion 25b. However, even if it is not a cylindrical body, the same effect can be obtained if it is a single connecting body. Obtainable.
[0028]
(Example 2)
As shown in FIG. 3, the foreign object stopper 26 is provided with a disk portion 26b having a diameter smaller than the inner diameter of the drainage pump hose connection portion 24b on the drainage pump hose connection portion 24b side. Further, the attaching / detaching portion 26a of the foreign object stopper 26 and the disk portion 26b are connected by a plurality of ribs (connectors) 26f extending radially from the substantially central portion thereof. Other configurations are the same as those of the first embodiment.
[0029]
The operation in the above configuration will be described. When the drainage pump 19 operates to drain the washing water in the outer tub 3, the drained washing water is drained hose connection portion 24a of the substantially T-shaped joint 24 as indicated by an arrow e. Turbulent flow between what flows in between the inner wall of the substantially T-shaped joint 24 and the outer periphery of the disk portion 26b as indicated by an arrow h, and a plurality of radially extending ribs 26f as indicated by an arrow i. Break up into things that cause Thereafter, it passes through the drainage pump hose 22 as shown by the arrow g and flows into the drainage pump 19.
[0030]
In the configuration of Example 1 described above, when long hair is drained together with the washing water and the long hair is caught on one cylindrical body 25e, the long hair may be entangled with the foreign matter stopper 25.
[0031]
In this embodiment, the attachment / detachment portion 26a and the disc portion 26b of the foreign object stopper 26 are connected by a plurality of ribs 26f extending radially from the substantially central portion thereof, so that a long hair flows in and a plurality of radially extending portions. Even when caught by the ribs 26f, the long hair can be lifted from the radially extending ribs 26f by the turbulent flow of the arrow i, and can be poured out.
[0032]
As a result, even if lint or long or short hair is mixed in the washing water, the lint or long or short hair is entangled with the foreign matter stopper 26, and the lint or long or short hair grows gradually, and the drainage pump It is possible to prevent the problem that the drainage pump 19 is locked by being entangled with 19 and the drainage pump 19 is not drained.
[0033]
In this embodiment, the number of radial ribs is three. However, if the number of the ribs is connected in a substantially central portion with no gap, the same effect can be obtained with three or less or more. .
[0034]
(Example 3)
As shown in FIG. 4, all of the plurality of ribs 26f extending radially from the substantially central portion of the connection body have an angle with the center line direction of the drainage hose connection portion 24a. For example, the rib 26g corresponding to the drain hose connection part 24a has an angle α with the center line direction of the drain hose connection part 24a. Other configurations are the same as those of the second embodiment.
[0035]
In the configuration of the second embodiment, long hair is drained together with the washing water, and one of the plurality of ribs 26f extending radially from the substantially central portion of the connection body is parallel to the center line direction of the drainage hose connection portion 24a. In such a case, if the long hair is caught in the right and left equal length, the flow of the drainage is equal to the left and right of the rib 26f, so that the long hair may not flow easily.
[0036]
In the present embodiment, all the plurality of ribs 26f extending radially from the substantially central portion of the connection body have an angle with the direction of the center line of the drainage hose connection portion 24a. Since the flow of the arrow i becomes a weak turbulent flow, the flow of the drainage is different on the left and right of the rib 26g. Therefore, even when long hair flows in and is caught on the rib 26g with equal left and right lengths, the long hair can be lifted from the rib 26g by the strong turbulent arrow j and can flow out toward the flow of the arrow i.
[0037]
As a result, even if lint, long or short hair, etc. are mixed in the washing water and caught on one of the plurality of ribs 26f with the same length on the left and right, the long hair can be washed out. Long and short hairs and the like are entangled with the foreign matter stopper 26, and the lint and long and short hairs are gradually grown, entangled with the drainage pump 19 and the drainage pump 19 is locked, preventing the problem of drainage. be able to.
[0038]
In the present embodiment, the number of the radial ribs 26f is three, but the same effect can be obtained with three or less or more.
[0039]
Example 4
As shown in FIG. 5, the foreign matter stopper 27 has a foreign matter so that the outer peripheral portion of the disc portion 27b provided on the drainage pump hose connecting portion 24b side is convex in the direction of the detachable portion 27a along the outer peripheral edge. A stopper cylindrical rib 27h is provided. Other configurations are the same as those in the first to third embodiments.
[0040]
In the configuration of the third embodiment, if foreign matter such as a toothpick or a nail is mixed in the drained washing water, the tip may slip even if the foreign matter hits the disk portion 26b, and the foreign matter may not be captured. It was.
[0041]
In the present embodiment, the foreign substance stopper cylindrical rib 27h is provided along the outer peripheral edge of the disk part 27b so as to protrude toward the attaching / detaching part 27a, so that the flow of the arrow m flows between the disk part 27b and the foreign substance stopper. Turbulent flow occurs in the foreign matter stopper recess 27i made of the cylindrical rib 27h.
[0042]
At this time, light items such as hair and lint are not washed away, and a large foreign matter 28 such as a toothpick or a nail is caught in the foreign matter stopper recess 27i as shown in the figure. Therefore, it is possible to improve the ability to capture foreign matter such as toothpicks and nails, and to prevent the problem that the drainage pump 19 is locked by foreign matter.
[0043]
In this embodiment, the foreign matter stopper cylindrical rib 27h is provided on the outer peripheral portion of the disc portion 27b so as to protrude toward the attaching / detaching portion 27a. However, the shape of the disc portion 27b is the center portion of the drain pump hose connecting portion. It goes without saying that the same effect can be obtained even if the cone shape is convex in the 24b direction.
[0044]
(Example 5)
As shown in FIG. 6, the substantially T-shaped joint 29 is provided on the inner surface side of the drainage pump hose connection portion 29b, on the downstream side of the disc portion 30b provided on the distal end side of the foreign matter stopper 30, and on the outer side of the disc portion 30b. A substantially annular rib 29f having an inner diameter hole 29e smaller than the diameter is provided. Other configurations are the same as those in the first to fourth embodiments.
[0045]
In the configurations of Examples 1 to 4, when foreign matter such as toothpick or nail is mixed in the drained washing water, the foreign matter flows through the gap between the disc portion of the foreign matter stopper and the inner surface of the drainage pump hose connection portion. There was a possibility.
[0046]
In the present embodiment, since the substantially annular rib 29f having an inner diameter hole 29e smaller than the outer diameter of the disk part 30b is provided on the inner surface side of the drainage pump hose connection part 29b, the flow of the arrow n is a disk. It passes through the gap between the portion 30b and the inner surface of the drainage pump hose connection portion 29b, passes between the disc portion 30b and the substantially annular rib 29f, and flows to the drainage pump 19 as shown by the arrow g.
[0047]
At this time, hair, lint, and the like are not washed away, and a large foreign matter 28 such as a toothpick or a nail is caught by a substantially annular rib 29f as shown in the drawing. Therefore, it is possible to improve the ability to capture foreign matter such as toothpicks and nails, and to prevent the problem that the drainage pump 19 is locked by foreign matter.
[0048]
(Example 6)
As shown in FIG. 7, the substantially T-shaped joint 31 is provided with a joint cylindrical rib 31g so as to protrude in the direction of the joint attaching / detaching portion 31c along the hole 31e of the substantially annular rib 31f. Other configurations are the same as those of the fifth embodiment.
[0049]
In the configuration of the fifth embodiment, if foreign matter such as a toothpick or a nail is mixed in the drained washing water, the tip may slip even if the foreign matter hits the substantially annular rib 29f, and the foreign matter may not be captured. was there.
[0050]
In this embodiment, since the joint cylindrical rib 31g is provided so as to protrude in the direction of the joint attaching / detaching portion 31c along the hole 31e of the substantially annular rib 31f, the flow of the arrow p flows between the substantially annular rib 31f and the joint. Turbulent flow occurs in the joint recess 31h made of the cylindrical rib 31g.
[0051]
At this time, light objects such as hair and lint are not washed away, and a large foreign object 28 such as a toothpick or nail is caught in the joint recess 31h as shown in the figure. Therefore, it is possible to further improve the ability to capture foreign matter such as toothpicks and nails, and to prevent the problem that the drainage pump is locked by foreign matter.
[0052]
In this embodiment, the joint cylindrical rib 31g is provided so as to protrude in the direction of the joint attaching / detaching portion 31c along the hole 31e of the substantially annular rib 31f. It goes without saying that the same effect can be obtained even if the cone shape is convex in the direction of the portion 31c.
[0053]
【The invention's effect】
As described above, according to the first aspect of the present invention, the rotating drum having the rotating shaft in the substantially horizontal direction, the outer tub enclosing the rotating drum, the drive motor for rotating the rotating drum, A body housing a swinging body mainly composed of the outer tub so as to be swingable, a drain hose connected to the bottom of the outer tub, a drain pump for forcibly draining wash water in the outer tub, and a drain hose and a substantially T-shaped joint connecting portions of the connecting portion and the drainage pump has a freely foreign matter stopper detachably on the connection portion and substantially concentric substantially orthogonal vital the drainage pump inside the tip side of the foreign substance stopper the disc portion of smaller diameter than the inner diameter of the generally T-shaped joint provided in, from said foreign matter stopper of the detachable portion and the disk portion linked by a plurality of ribs extending radially from a substantially central portion thereof, lock the waste water pump Prevents foreign objects such as toothpicks and nails from flowing into the drainage pump, and lint and long and short hair are ribbed by long ribs due to turbulent flow due to radial ribs even when they are caught by multiple radially extending ribs. It is possible to prevent the wastewater from being drained by preventing the foreign matter stopper from getting entangled and eliminating the lock of the drainage pump.
[0054]
Further, according to the invention described in claim 2 , since all of the plurality of ribs extending radially from the substantially central portion of the connection body have an angle with the connection direction of the drainage hose, different turbulent flows are produced on the left and right sides of the rib. The turbulent flow allows long hair to float off the ribs, further preventing lint, long and short hair, etc. from getting entangled with the foreign material stopper, and eliminating the lock on the drain pump to prevent draining. Can be prevented.
[0055]
According to the invention described in claim 3 , since the disk portion provided on the tip side of the foreign material stopper has a central portion that protrudes from the outer peripheral side to the downstream side of the flow of drainage, the toothpick that locks the drainage pump. It is possible to improve the ability to collect foreign substances such as nails and nails, further prevent foreign substances from flowing into the drainage pump, and prevent the drainage pump from being drained by eliminating the lock of the drainage pump.
[0056]
According to the fourth aspect of the invention, the inner surface of the substantially T-shaped joint has an inner diameter that is smaller than the outer diameter of the disk portion on the downstream side of the disk portion provided on the distal end side of the foreign matter stopper. Since a substantially annular rib having a hole is provided, the flow of water passes through the gap between the inner surface of the substantially T-shaped joint and the disk portion and flows through the space between the disk portion and the substantially annular rib. The ability to collect foreign objects such as toothpicks and nails that lock the pump can be further improved, further preventing foreign objects from flowing into the drainage pump, and preventing the drainage pump from being drained by eliminating the lock on the drainage pump. be able to.
[0057]
Further, according to the invention described in claim 5 , since the tip end portion of the inner diameter of the substantially annular rib protrudes from the outer peripheral side to the upstream side of the flow of drainage, large foreign matters such as toothpicks and nails can be Because it will be caught in the concave part made by the above, the ability to collect foreign objects such as toothpicks and nails that lock the drainage pump can be further improved, further preventing foreign substances from flowing into the drainage pump, and locking the drainage pump By eliminating, it can be prevented from draining.
[Brief description of the drawings]
1A is a partially cutaway cross-sectional view of a main part of a drum type washing machine according to a first embodiment of the present invention. FIG. 1B is a cross-sectional side view of a main part of the drum type washing machine partially cut out. Cross-sectional view of the drum-type washing machine [FIG. 3] (a) Partial cross-sectional view of the drum-type washing machine according to the second embodiment of the present invention (b) Partial cut-out of the drum-type washing machine Fig. 4 is a side sectional view of a principal part of a drum type washing machine according to a third embodiment of the present invention. Fig. 5 is a drum type washing machine according to a fourth embodiment of the present invention. Fig. 6 is a partially cutaway sectional view of the main part of the drum type washing machine of the fifth embodiment of the present invention. Fig. 7 is a drum type of the sixth embodiment of the present invention. Cross-sectional view of a principal part of the washing machine [FIG. 8] Cross-sectional view of a conventional drum-type washing machine [FIG. 9] Cross-sectional view of the principal part of the drum-type washing machine [Explanation of symbols]
1 Rotating drum 3 Outer tub 6 First motor (drive motor)
7 Second motor (drive motor)
DESCRIPTION OF SYMBOLS 10 Body 16 Drainage hose 19 Drainage pump 24 Substantially T-shaped joint 25 Foreign object stopper 25a Detachable part 25b Disk part 25e Cylindrical body (connecting body)

Claims

A rotating drum having a rotating shaft in a substantially horizontal direction; an outer tub that encloses the rotating drum; a drive motor that rotates the rotating drum; and a body that oscillates an oscillating body mainly composed of the outer tub. a drain hose which is connected to the bottom of the outer tub, a drain pump to force drain the wash water in the outer tub, the connection portion of the drain pump and the connecting portion of the drain hose is substantially orthogonal vital the drainage pump A substantially T-shaped joint having a foreign substance stopper inside which is detachably attachable substantially concentrically with the connection part, and a disk part having a diameter smaller than the inner diameter of the substantially T-shaped joint is provided at the distal end side of the foreign substance stopper. A drum type washing machine in which the attachment / detachment portion of the foreign matter stopper and the disc portion are connected by a plurality of ribs extending radially from a substantially central portion thereof .

Drum-type washing machine of claim 1 wherein all of the ribs a plurality of have a connection direction and angle of the drain hose extending radially from a substantially central portion of the connecting member.

The drum-type washing machine according to claim 1 or 2 , wherein the disc portion provided on the tip side of the foreign matter stopper has a central portion protruding from the outer peripheral side to the downstream side of the drainage flow.

A substantially annular rib having a hole with an inner diameter smaller than the outer diameter of the disk portion is provided on the inner surface side of the substantially T-shaped joint on the downstream side of the disk portion provided on the distal end side of the foreign matter stopper. The drum type washing machine according to any one of 1 to 3 .

The drum-type washing machine according to claim 4, wherein a tip end portion of the inner diameter of the substantially annular rib protrudes from the outer peripheral side to the upstream side of the drainage flow.