JP3669332B2

JP3669332B2 - Washing machine

Info

Publication number: JP3669332B2
Application number: JP2002003084A
Authority: JP
Inventors: 兼一赤坂; 純司神谷; 己紀夫田原
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2002-01-10
Filing date: 2002-01-10
Publication date: 2005-07-06
Anticipated expiration: 2022-01-10
Also published as: JP2003199990A

Description

【０００１】
【発明の属する技術分野】
本発明は、衣類の洗い、すすぎ、脱水等を行う洗濯機に関するものである。
【０００２】
【従来の技術】
従来、この種の洗濯機は、図６〜図１０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６に示すように、洗濯機本体２０は、内部に脱水振動を防振するように、サスペンション２１によって懸架された水受け槽２２を設け、水受け槽２２内に洗濯兼脱水槽２３を回転自在に配設し、この洗濯兼脱水槽２３の内底部に洗濯物を撹拌する撹拌翼２４を回転自在に配設している。水受け槽２２の底部には駆動部２５を設けている。
【０００４】
駆動部２５には、図７に示すように、中空の脱水軸２６を設け、脱水軸２６は、駆動部２５の上方中央部に設けた脱水上部軸受２７と中間中央部近傍に設けた脱水下部軸受２８により軸支されている。脱水軸２６の上端側は、洗濯兼脱水槽２３の底部に固定され、洗濯兼脱水槽２３と連結している。脱水軸２６の上部側中空部２６ａには、脱水軸２６と略同軸上となるように洗濯軸２９を設け、脱水軸２６の上部側中空部２６ａ内に設けた洗濯軸受３０により軸支されている。洗濯軸２９の上端側は、撹拌翼２４の底部に固定され、撹拌翼２４と連結している。一方、洗濯軸２９の下端側は、脱水軸２６内の中間中空部２６ｂに設けた減速機構３１の出力側に連結している。
【０００５】
減速機構３１の入力側には、入力軸３２の上端を接続し、入力軸３２は、脱水軸２６の下部側中空部２６ｃ内に設けた入力軸受３３により軸支されている。
【０００６】
洗濯軸２９、入力軸３２および減速機構３１等を内包する脱水軸２６、および脱水上部軸受２７と脱水下部軸受２８はケース３４により内包され、このケース３４は水受け槽２２の底部に固定されている。
【０００７】
駆動モータ３５は脱水軸２７および入力軸３２を回転させるものであり、入力軸３２の下部に駆動モータ３５のロータ３５ａを連結している。駆動モータ３５内にはロータ３５ａの外周に設けた磁石３５ｂと対峙するように、ステータ３５ｃを配している。
【０００８】
脱水軸２７の下部にはその外周部にスプライン等の形状を有する樹脂製のスライド部３６を設けている。スライド部３６には、そのスプライン等の形状に対応した内周形状を有するスライド部材３７を上下摺動自在に設けている。そのスライド部材３７は、付勢ばね３８により下方向に押しつけられ、スライド部材３７の下部に設けた下部突起部３７ａをロータ３５ａに設けた開口部３５ｄに係合させて、ロータ３５ａの回転を脱水軸２７に伝達できるよう構成している。なお、洗濯機の電源がオフ時には、この状態を維持するものである。
【０００９】
水受け槽２２の底部に、ギアードモータまたはソレノイドなどのレバー駆動手段３９を取り付けている。
【００１０】
レバー駆動手段３９の駆動手段接続部３９ａには、他端をクラッチレバー４０のクラッチレバー接続部４０ａに接続した媒介部材４１の一端を接続している。
【００１１】
クラッチレバー４０は、一端にスライド部材３７を下方から支持する略Ｕ字形状のスライド部材支持部４０ｂを有し、他端には前述のクラッチレバー接続部４０ａを有し、かつ、駆動モータ３５のステータ３５ｃを保持する保持部材４２に設けた固定側係合部材４３の回転保持部４３ａに、回転自在に支持される軸部４０ｃを有している。
【００１２】
固定側係合部材４３の保持部材４２への取り付けは、ねじ４４により、固定側係合部材４３と保持部材４２を一体にケース３４に固定している。
【００１３】
固定側係合部材４３は、図９に示すように、金属部材４３ｂを底部に穴部を有するように略凹状にプレス加工し、その外側略平面部を保持部材４２へ取り付け部とし、金属部材４３ｂを内包するように樹脂成形にて固定側突起部４３ｃを形成している。
【００１４】
駆動モータ３５の回転が入力軸３２への伝達時には、レバー駆動手段３９の駆動手段接続部３９ａを回転させ、図７の位置から図８の位置に移動させることにより、クラッチレバー４０は、媒介部材４１を介して、軸部４０ｃを中心に時計方向に回転する。この回転により、スライド部材支持部４０ｂが上方向に回転移動し、付勢ばね３８の下方向への付勢力に抗して、スライド部材３７を上方向に持ち上げる。
【００１５】
これにより、図８に示すように、スライド部材３７の下部に設けた下部突起部３７ａは、ロータ３５ａに設けた開口部３５ｄとの係合から外れ、ロータ３５ａの回転は、脱水軸２７には非伝達となり、入力軸３２にのみ伝達させるよう構成している。それと同時にスライド部材３７の上部に設けた上部突起部３７ｂと、固定側係合部材４３に設けた固定側突起部４３ｃが係合することにより、脱水軸２６を固定し、洗濯兼脱水槽２３の共回りを防止する構成としている。
【００１６】
なお、クラッチレバー接続部４０ａは、駆動モータ３５から外方へ突出しており、図６に示すようにクラッチレバー４０が反時計方向に回転すると、ケース３４の側壁に当接し、その位置で回転が規制される。
【００１７】
図９に示すように、金属部材４３ｂを内包する樹脂成形にて形成された固定側突起部４３ｃの内径方向部には、第１の略円筒状リブ４３ｄを設け、固定側突起部４３ｃは第１の略円筒状リブ４３ｄから外方向に放射線状に延設している。４３ｅは、保持部材４２への取り付けの際の貫通穴である。
【００１８】
また、スライド部材３７の上部に設けた上部突起部３７ｂは、図１０に示すように、固定側突起部４３ｃと係合するように放射線状に設けている。上部突起部３７ｂの外周には、その上部突起部３７ｂに一体に第２の略円筒状リブ３７ｃを設けている。
【００１９】
上記構成において動作を説明する。撹拌翼２４の回転による洗濯、すすぎの行程を実行する場合、すなわち駆動モータ３５の回転の入力軸３２への伝達時には、レバー駆動手段３９の駆動手段接続部３９ａを回転させ、図７の位置から図８の位置に移動させることにより、クラッチレバー４０は、媒介部材４１を介して、軸部４０ｃを中心に時計方向に回転する。この回転により、スライド部材支持部４０ｂが上方向に回転移動し、付勢ばね３８の下方向への付勢力に抗して、スライド部材３７を上方向に持ち上げる。
【００２０】
これにより、図８に示すように、スライド部材３７の下部に設けた下部突起部３７ａは、ロータ３５ａに設けた開口部３５ｄとの係合から外れ、ロータ３５ａの回転は、脱水軸２７には非伝達となり、入力軸３２にのみ伝達され、撹拌翼２４が回転する。それと同時にスライド部材３７の上部に設けた上部突起部３７ｂと、固定側係合部材４３に設けた固定側突起部４３ｃが係合し、洗濯兼脱水槽２３の共回りを防止する。
【００２１】
【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、撹拌翼２４の回転による洗濯、すすぎの行程を実行する場合、すなわち駆動モータ３５の回転が入力軸３２への伝達時には、レバー駆動手段３９の駆動手段接続部３９ａを回転させ、図７の位置から図８の位置に移動させることにより、スライド部材３７の上部に設けた上部突起部３７ｂと、固定側係合部材４３に設けた固定側突起部４３ｃが係合し、洗濯兼脱水槽２３の共回りを防止する。
【００２２】
ここで、上部突起部３７ｂの上面３７ｄと、固定側係合部材４３に設けた固定側突起部４３ｃの上面４３ｆが当接したとき、媒介部材４１はばねで構成しており、伸びた状態となり、撹拌翼２４が回転するとともに洗濯兼脱水槽２３がわずかに共回りすると、上部突起部３７ｂと、固定側係合部材４３に設けた固定側突起部４３ｃが係合するが、媒介部材４１が瞬時に縮むため、上部突起部３７ｂの上面３７ｄと、固定側係合部材４３に設けた固定側突起部４３ｃの底面４３ｇが勢いよく当接したり、また、上部突起部３７ｂの底面３７ｅと、固定側係合部材４３に設けた固定側突起部４３ｃの上面４３ｆが勢いよく当接し、異常音が発生するという問題を有していた。
【００２３】
本発明は上記従来の課題を解決するもので、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を低減し、低騒音化を実現することを目的としている。
【００２４】
【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、洗濯兼脱水槽を回転させる中空の脱水軸と略同軸上に洗濯軸を配設して洗濯兼脱水槽内に配設した撹拌翼を回転させ、脱水軸と洗濯軸を保持部材により保持した駆動モータにより回転させ、クラッチレバーの回転によりスライド部材を上下に滑動させて駆動モータの回転の伝達を脱水軸、洗濯軸のいずれかに切り換えるよう構成し、スライド部材の上部に上部突起部を設け、保持部材に上部突起部に係合する固定側突起部を有する固定側係合部材を着設し、クラッチレバーには当接部を設け、固定側係合部材にはクラッチレバーの当接部に当接する当接部を設け、上部突起部と固定側突起部とが係合する際、クラッチレバーの当接部と固定側係合部材の当接部とが当接することにより、上部突起部の上面と固定側突起部の底面の間および上部突起部の底面と固定側突起部の上面の間に隙間が設けられるようにしたものである。
【００２５】
これにより、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を低減できて、低騒音化を実現することができる。
【００２６】
【発明の実施の形態】
本発明の請求項１に記載の発明は、洗濯兼脱水槽を回転させる中空の脱水軸と、前記脱水軸と略同軸上に配設し前記洗濯兼脱水槽内に配設した撹拌翼を回転させる洗濯軸と、前記脱水軸と洗濯軸を回転させる駆動モータと、前記駆動モータを保持する保持部材と、上下の滑動により前記駆動モータの回転の伝達を脱水軸、洗濯軸のいずれかに切り換えるスライド部材と、回転により前記スライド部材を上下に滑動させるクラッチレバーとを備え、前記スライド部材の上部に上部突起部を設け、前記保持部材に前記上部突起部に係合する固定側突起部を有する固定側係合部材を着設し、前記クラッチレバーには当接部を設け、前記固定側係合部材には前記クラッチレバーの当接部に当接する当接部を設け、前記上部突起部と固定側突起部とが係合する際、前記クラッチレバーの当接部と前記固定側係合部材の当接部とが当接することにより、前記上部突起部の上面と固定側突起部の底面の間および上部突起部の底面と固定側突起部の上面の間に隙間が設けられるようにしたものであり、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を低減することができ、低騒音化を実現することができる。
【００２７】
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、クラッチレバーと固定側係合部材の当接部の少なくともいずれか一方に弾性部材を設けたものであり、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を低減することができ、低騒音化を実現することができる。
【００２８】
【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、洗濯機の全体構成は従来例と同じであるので説明を省略し、また、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。
【００２９】
（実施例１）
図１および図４に示すように、クラッチレバー４５は、一端にスライド部材３７を下方から支持する略Ｕ字形状のスライド部材支持部４５ｂを有し、他端に媒介部材４１を接続するクラッチレバー接続部４５ａを有し、かつ、駆動モータ３５のステータ３５ｃを保持する保持部材４２に設けた固定側係合部材４６の回転保持部４６ａに、回転自在に支持される軸部４５ｃを有している。そして、クラッチレバーの一部に当接部４５ｅを設けている。
【００３０】
固定側係合部材４６は、図３に示すように、金属部材４６ｂを底部に穴部を有するように略凹状にプレス加工し、その外側略平面部を保持部材４２へ取り付け部とし、金属部材４６ｂを内包するように樹脂成形にて固定側突起部４６ｃと当接部４６ｈを形成している。固定側係合部材４６の保持部材４２への取り付けは、ねじ４４により、固定側係合部材４６と保持部材４２を一体にケース３４に固定している。
【００３１】
駆動モータ３５の回転が入力軸３２への伝達時には、レバー駆動手段３９の駆動手段接続部３９ａを回転させ、図１の位置から図２の位置に移動させることにより、クラッチレバー４５は、媒介部材４１を介して、軸部４５ｃを中心に時計方向に回転する。この回転により、スライド部材支持部４５ｂが上方向に回転移動し、付勢ばね３８の下方向への付勢力に抗して、スライド部材３７を上方向に持ち上げる。
【００３２】
これにより、図２に示すように、スライド部材３７の下部に設けた下部突起部３７ａは、ロータ３５ａに設けた開口部３５ｄとの係合から外れ、ロータ３５ａの回転は、脱水軸２７には非伝達となり、入力軸３２にのみ伝達させるよう構成している。それと同時にスライド部材３７の上部に設けた上部突起部３７ｂと、固定側係合部材４６に設けた固定側突起部４６ｃが係合することにより、脱水軸２６を固定し、洗濯兼脱水槽２３の共回りを防止する構成としている。
【００３３】
上記構成において動作を説明する。撹拌翼２４の回転による洗濯、すすぎの行程を実行する場合、すなわち駆動モータ３５の回転の入力軸３２への伝達時には、レバー駆動手段３９の駆動手段接続部３９ａを回転させ、図１の位置から図２の位置に移動させることにより、スライド部材３７の上部に設けた上部突起部３７ｂと、固定側係合部材４６に設けた固定側突起部４６ｃが係合し、洗濯兼脱水槽２３の共回りを防止する。
【００３４】
ここで、上部突起部３７ｂの上面３７ｄ（図１０参照）と、固定側係合部材４６に設けた固定側突起部４６ｃの上面４６ｆが当接したとき、媒介部材４１を構成するばねが伸びた状態となり、撹拌翼２４が回転するとともに洗濯兼脱水槽２３がわずかに共回りすると上部突起部３７ｂと、固定側係合部材４６に設けた固定側突起部４６ｃが係合する。
【００３５】
このとき、媒介部材４１を構成するばねが瞬時に縮んだとしても、クラッチレバー４５の当接部４５ｅと固定側係合部材４６の当接部４６ｈが先に当接することで、上部突起部３７ｂの上面３７ｄと、固定側係合部材４６に設けた固定側突起部４６ｃの底面４６ｇの間に隙間ができ、勢いよく当接することがなくなる。また、上部突起部３７ｂの底面３７ｅと、固定側係合部材４６に設けた固定側突起部４６ｃの上面４６ｆの間にも隙間ができ、勢いよく当接することがなくなり、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を減少させ低騒音化を実現することができる。
【００３６】
（実施例２）
図５に示すように、クラッチレバー４７は、一端にスライド部材３７を下方から支持する略Ｕ字形状のスライド部材支持部４７ｂを有し、他端に媒介部材４１を接続するクラッチレバー接続部４７ａを有し、かつ、駆動モータ３５のステータ３５ｃを保持する保持部材４２に設けた固定側係合部材４６の回転保持部４６ａに、回転自在に支持される軸部４７ｃを有している。そして、クラッチレバー４７の一部に弾性体を有する当接部４７ｆを設けている。他の構成は上記実施例１と同じである。
【００３７】
上記構成において動作を説明する。撹拌翼２４の回転による洗濯、すすぎの行程を実行する場合、すなわち駆動モータ３５の回転が入力軸３２への伝達時には、上記実施例１と同様に、レバー駆動手段３９の駆動手段接続部３９ａを回転させ、図１の位置から図２の位置に移動させることにより、スライド部材３７の上部に設けた上部突起部３７ｂと、固定側係合部材４６に設けた固定側突起部４６ｃが係合し、洗濯兼脱水槽２３の共回りを防止する。
【００３８】
ここで、上部突起部３７ｂの上面３７ｄと、固定側係合部材４６に設けた固定側突起部４６ｃの上面４６ｆが当接したとき、媒介部材４１を構成するばねが伸びた状態となり、撹拌翼２４が回転するとともに洗濯兼脱水槽２３がわずかに共回りすると上部突起部３７ｂと、固定側係合部材４６に設けた固定側突起部４６ｃが係合する。
【００３９】
このとき、媒介部材４１を構成するばねが瞬時に縮んだとしても、クラッチレバー４７の一部に弾性体を有する当接部４７ｆと固定側係合部材４６の当接部４６ｈが先に当接することで、上部突起部３７ｂの上面３７ｄと、固定側係合部材４６に設けた固定側突起部４６ｃの底面４６ｇの間に隙間ができ、勢いよく当接することがなくなる。また、上部突起部３７ｂの底面３７ｅと、固定側係合部材４６に設けた固定側突起部４６ｃの上面４６ｆの間にも隙間ができ、勢いよく当接することがなくなり、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を減少させ低騒音化を実現することができる。
【００４０】
【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、洗濯兼脱水槽を回転させる中空の脱水軸と、前記脱水軸と略同軸上に配設し前記洗濯兼脱水槽内に配設した撹拌翼を回転させる洗濯軸と、前記脱水軸と洗濯軸を回転させる駆動モータと、前記駆動モータを保持する保持部材と、上下の滑動により前記駆動モータの回転の伝達を脱水軸、洗濯軸のいずれかに切り換えるスライド部材と、回転により前記スライド部材を上下に滑動させるクラッチレバーとを備え、前記スライド部材の上部に上部突起部を設け、前記保持部材に前記上部突起部に係合する固定側突起部を有する固定側係合部材を着設し、前記クラッチレバーには当接部を設け、前記固定側係合部材には前記クラッチレバーの当接部に当接する当接部を設け、前記上部突起部と固定側突起部とが係合する際、前記クラッチレバーの当接部と前記固定側係合部材の当接部とが当接することにより、前記上部突起部の上面と固定側突起部の底面の間および上部突起部の底面と固定側突起部の上面の間に隙間が設けられるようにしたから、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を低減することができ、低騒音化を実現することができる。
【００４１】
また、請求項２に記載の発明によれば、クラッチレバーと固定側係合部材の当接部の少なくともいずれか一方に弾性部材を設けたから、洗濯への切り換え時や、洗濯運転時の衝突音等の異常音を低減することができ、低騒音化を実現することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施例の洗濯機の駆動部の脱水時の状態の断面図
【図２】同洗濯機の駆動部の洗濯時の状態の断面図
【図３】（ａ）同洗濯機の固定側係合部材の一部切欠した側面図
（ｂ）同洗濯機の固定側係合部材の底面図
【図４】（ａ）同洗濯機のクラッチレバーの平面図
（ｂ）同洗濯機のクラッチレバーの側面図
【図５】（ａ）本発明の第２の実施例の洗濯機のクラッチレバーの平面図
（ｂ）同洗濯機のクラッチレバーの側面図
【図６】従来の洗濯機の断面図
【図７】同洗濯機の駆動部の脱水時の状態の断面図
【図８】同洗濯機の駆動部の洗濯時の状態の断面図
【図９】（ａ）同洗濯機の固定側係合部材の断面図
（ｂ）同洗濯機の固定側係合部材の底面図
【図１０】（ａ）同洗濯機のスライド部材の平面図
（ｂ）同洗濯機のスライド部材の断面図
【符号の説明】
２３洗濯兼脱水槽
２４撹拌翼
２６脱水軸
２９洗濯軸
３５駆動モータ
３７スライド部材
３７ｂ上部突起部
３７ｄ上部突起部の上面
３７ｅ上部突起部の底面
４２保持部材
４５クラッチレバー
４６固定側係合部材
４６ｃ固定側突起部
４６ｆ固定側突起部の上面
４６ｇ固定側突起部の底面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine that performs washing, rinsing, dehydration, and the like of clothes.
[0002]
[Prior art]
Conventionally, this type of washing machine is configured as shown in FIGS. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 6, the washing machine main body 20 is provided with a water receiving tub 22 suspended by a suspension 21 so as to prevent dehydration vibration inside, and the washing and dehydrating tub 23 is rotated in the water receiving tub 22. A stirring blade 24 that stirs the laundry is rotatably disposed at the inner bottom of the washing and dewatering tub 23. A drive unit 25 is provided at the bottom of the water receiving tank 22.
[0004]
As shown in FIG. 7, the drive unit 25 is provided with a hollow dewatering shaft 26. The dewatering shaft 26 includes a dewatering upper bearing 27 provided in the upper center portion of the driving unit 25 and a dewatering lower portion provided in the vicinity of the middle center portion. It is supported by a bearing 28. The upper end side of the dewatering shaft 26 is fixed to the bottom of the washing and dewatering tub 23 and connected to the washing and dewatering tub 23. A washing shaft 29 is provided in the upper hollow portion 26a of the dewatering shaft 26 so as to be substantially coaxial with the dewatering shaft 26, and is supported by a washing bearing 30 provided in the upper hollow portion 26a of the dewatering shaft 26. Yes. The upper end side of the washing shaft 29 is fixed to the bottom of the stirring blade 24 and is connected to the stirring blade 24. On the other hand, the lower end side of the washing shaft 29 is connected to the output side of the speed reduction mechanism 31 provided in the intermediate hollow portion 26 b in the dewatering shaft 26.
[0005]
An upper end of the input shaft 32 is connected to the input side of the speed reduction mechanism 31, and the input shaft 32 is pivotally supported by an input bearing 33 provided in the lower hollow portion 26 c of the dewatering shaft 26.
[0006]
A dewatering shaft 26 including a washing shaft 29, an input shaft 32, a speed reduction mechanism 31, and the like, and a dewatering upper bearing 27 and a dewatering lower bearing 28 are included in a case 34. The case 34 is fixed to the bottom of the water receiving tub 22. Yes.
[0007]
The drive motor 35 rotates the dehydrating shaft 27 and the input shaft 32, and a rotor 35 a of the drive motor 35 is connected to the lower portion of the input shaft 32. A stator 35c is disposed in the drive motor 35 so as to face a magnet 35b provided on the outer periphery of the rotor 35a.
[0008]
A resin slide portion 36 having a shape such as a spline is provided on the outer periphery of the lower portion of the dewatering shaft 27. The slide portion 36 is provided with a slide member 37 having an inner peripheral shape corresponding to the shape of the spline or the like so as to be slidable up and down. The slide member 37 is pressed downward by the urging spring 38, and the lower projection 37a provided at the lower portion of the slide member 37 is engaged with the opening 35d provided in the rotor 35a to dehydrate the rotation of the rotor 35a. The shaft 27 can be transmitted. This state is maintained when the washing machine is turned off.
[0009]
A lever driving means 39 such as a geared motor or a solenoid is attached to the bottom of the water receiving tank 22.
[0010]
One end of a mediating member 41 having the other end connected to the clutch lever connecting portion 40 a of the clutch lever 40 is connected to the driving means connecting portion 39 a of the lever driving means 39.
[0011]
The clutch lever 40 has a substantially U-shaped slide member support portion 40 b that supports the slide member 37 from below at one end, the clutch lever connection portion 40 a at the other end, and the drive motor 35. The rotation holding portion 43a of the fixed engagement member 43 provided on the holding member 42 that holds the stator 35c has a shaft portion 40c that is rotatably supported.
[0012]
The fixed-side engagement member 43 is attached to the holding member 42 by fixing the fixed-side engagement member 43 and the holding member 42 to the case 34 with a screw 44.
[0013]
As shown in FIG. 9, the fixed-side engaging member 43 is formed by pressing the metal member 43 b into a substantially concave shape so as to have a hole at the bottom, and using the outer substantially flat portion as an attachment portion to the holding member 42. The fixed-side protrusion 43c is formed by resin molding so as to enclose 43b.
[0014]
When the rotation of the drive motor 35 is transmitted to the input shaft 32, the clutch lever 40 is moved from the position of FIG. 7 to the position of FIG. 8 by rotating the drive means connecting portion 39 a of the lever drive means 39. Rotate clockwise about the shaft 40c via 41. This rotation causes the slide member support portion 40b to rotate upward and lift the slide member 37 upward against the downward biasing force of the biasing spring 38.
[0015]
As a result, as shown in FIG. 8, the lower protrusion 37a provided at the lower portion of the slide member 37 is disengaged from the opening 35d provided in the rotor 35a, and the rotation of the rotor 35a is caused by the dehydrating shaft 27. It is configured to be non-transmitted and transmitted only to the input shaft 32. At the same time, the upper protrusion 37b provided on the upper portion of the slide member 37 and the fixed side protrusion 43c provided on the fixed engagement member 43 are engaged, thereby fixing the dehydrating shaft 26 and the washing / dehydrating tub 23. It is configured to prevent co-rotation.
[0016]
The clutch lever connecting portion 40a protrudes outward from the drive motor 35. When the clutch lever 40 rotates counterclockwise as shown in FIG. 6, it contacts the side wall of the case 34 and rotates at that position. Be regulated.
[0017]
As shown in FIG. 9, a first substantially cylindrical rib 43d is provided on the inner diameter direction portion of the fixed side protrusion 43c formed by resin molding including the metal member 43b, and the fixed side protrusion 43c One substantially cylindrical rib 43d extends radially outwardly. 43 e is a through hole when attached to the holding member 42.
[0018]
Further, as shown in FIG. 10, the upper protrusions 37b provided on the upper portion of the slide member 37 are provided radially so as to engage with the fixed-side protrusions 43c. On the outer periphery of the upper protrusion 37b, a second substantially cylindrical rib 37c is provided integrally with the upper protrusion 37b.
[0019]
The operation in the above configuration will be described. When performing the washing and rinsing process by the rotation of the stirring blade 24, that is, when the rotation of the drive motor 35 is transmitted to the input shaft 32, the drive means connecting portion 39a of the lever drive means 39 is rotated and the position shown in FIG. By moving the clutch lever 40 to the position shown in FIG. 8, the clutch lever 40 rotates clockwise around the shaft portion 40 c via the intermediate member 41. This rotation causes the slide member support portion 40b to rotate upward and lift the slide member 37 upward against the downward biasing force of the biasing spring 38.
[0020]
As a result, as shown in FIG. 8, the lower protrusion 37a provided at the lower portion of the slide member 37 is disengaged from the opening 35d provided in the rotor 35a, and the rotation of the rotor 35a is caused by the dehydrating shaft 27. It becomes non-transmission, it is transmitted only to the input shaft 32, and the stirring blade 24 rotates. At the same time, the upper protrusion 37 b provided on the upper portion of the slide member 37 and the fixed protrusion 43 c provided on the fixed engagement member 43 are engaged to prevent the washing and dewatering tub 23 from rotating together.
[0021]
[Problems to be solved by the invention]
In such a conventional configuration, when the washing and rinsing process is performed by the rotation of the stirring blade 24, that is, when the rotation of the drive motor 35 is transmitted to the input shaft 32, the drive means connecting portion 39 a of the lever drive means 39 is provided. By rotating and moving from the position of FIG. 7 to the position of FIG. 8, the upper protrusion 37 b provided on the upper portion of the slide member 37 and the fixed side protrusion 43 c provided on the fixed engagement member 43 are engaged. The co-rotation of the washing and dewatering tub 23 is prevented.
[0022]
Here, when the upper surface 37d of the upper projecting portion 37b and the upper surface 43f of the fixed-side projecting portion 43c provided on the fixed-side engaging member 43 abut, the mediating member 41 is configured by a spring and is in an expanded state. When the stirring blade 24 rotates and the washing and dewatering tub 23 rotates slightly, the upper projection 37b and the fixed projection 43c provided on the fixed engagement member 43 engage with each other. In order to shrink instantly, the upper surface 37d of the upper protrusion 37b and the bottom surface 43g of the fixed-side protrusion 43c provided on the fixed-side engaging member 43 come into contact with each other vigorously, or fixed to the bottom surface 37e of the upper protrusion 37b. The upper surface 43f of the fixed-side protrusion 43c provided on the side engagement member 43 abuts vigorously and has a problem that abnormal noise is generated.
[0023]
SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to reduce abnormal noise such as a collision sound at the time of switching to washing or a washing operation, thereby realizing low noise.
[0024]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a washing shaft disposed substantially coaxially with a hollow dewatering shaft for rotating a washing and dewatering tub, and rotates a stirring blade disposed in the washing and dewatering tub to perform dewatering. The shaft and the washing shaft are rotated by a driving motor held by a holding member, the sliding member is slid up and down by the rotation of the clutch lever, and the transmission of the rotation of the driving motor is switched to either the dehydrating shaft or the washing shaft. An upper protrusion is provided on the upper portion of the slide member, a fixed engagement member having a fixed protrusion that engages with the upper protrusion is attached to the holding member, and a contact portion is provided on the clutch lever. the case member is provided with abutment portions abutting the abutment portion of the clutch lever, when a and the fixed side protrusion upper protrusion engages, an abutment portion of the clutch lever contact portion of the fixed side engaging member by preparative abuts the upper surface of the upper projecting portion Between the upper surface of the bottom and the fixed-side protrusion between the bottom surface of the fixed-side protrusion and the upper protrusion is obtained by such a gap is provided.
[0025]
As a result, abnormal noise such as a collision sound at the time of switching to washing or a washing operation can be reduced, and low noise can be realized.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there is provided a hollow dewatering shaft for rotating the washing and dewatering tub, and a stirring blade disposed substantially coaxially with the dewatering shaft and disposed in the washing and dewatering tub. The washing shaft to be rotated, the dehydrating shaft and the driving motor for rotating the washing shaft, the holding member for holding the driving motor, and the transmission of the rotation of the driving motor by switching up and down to the dehydrating shaft or the washing shaft. A slide member, and a clutch lever that slides the slide member up and down by rotation; an upper protrusion is provided on an upper portion of the slide member; and a fixed protrusion that engages the upper protrusion on the holding member A fixed engagement member is installed, the clutch lever is provided with a contact portion, the fixed engagement member is provided with a contact portion that contacts the contact portion of the clutch lever, and the upper protrusion engagement with the fixed-side protrusion To time, by the contact portion of the fixed-side engaging member and the abutment of the clutch lever is in contact, and the bottom surface between the bottom surface of the fixed-side protrusion and the upper surface of the upper protrusion and the upper protrusion portion A gap is provided between the upper surfaces of the fixed-side protrusions, which can reduce abnormal noise such as collision noise during switching to washing and washing operations, and achieves low noise. be able to.
[0027]
According to a second aspect of the present invention, in the first aspect of the present invention, an elastic member is provided in at least one of the contact portions of the clutch lever and the fixed engagement member, and switching to washing is performed. Abnormal noise such as collision noise during washing and washing can be reduced, and noise reduction can be realized.
[0028]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. Since the overall configuration of the washing machine is the same as that of the conventional example, the description thereof is omitted, and those having the same configuration as the conventional example are denoted by the same reference numerals and description thereof is omitted.
[0029]
(Example 1)
As shown in FIGS. 1 and 4, the clutch lever 45 has a substantially U-shaped slide member support portion 45 b that supports the slide member 37 from below at one end, and a clutch lever that connects the mediating member 41 to the other end. A shaft portion 45c that has a connection portion 45a and is rotatably supported by a rotation holding portion 46a of a fixed-side engagement member 46 provided on a holding member 42 that holds a stator 35c of the drive motor 35 is provided. Yes. A contact portion 45e is provided in a part of the clutch lever.
[0030]
As shown in FIG. 3, the fixed-side engaging member 46 is formed by pressing the metal member 46b into a substantially concave shape so as to have a hole at the bottom, and using the outer substantially flat portion as an attachment portion to the holding member 42. The fixed-side protrusion 46c and the contact portion 46h are formed by resin molding so as to enclose 46b. The fixed side engaging member 46 is attached to the holding member 42 by fixing the fixed side engaging member 46 and the holding member 42 to the case 34 with a screw 44.
[0031]
When the rotation of the drive motor 35 is transmitted to the input shaft 32, the clutch lever 45 is moved from the position of FIG. 1 to the position of FIG. Rotate clockwise about the shaft 45c via 41. This rotation causes the slide member support portion 45b to rotate upward and lift the slide member 37 upward against the downward biasing force of the biasing spring 38.
[0032]
As a result, as shown in FIG. 2, the lower protrusion 37a provided at the lower portion of the slide member 37 is disengaged from the opening 35d provided in the rotor 35a, and the rotation of the rotor 35a is caused by the dehydrating shaft 27. It is configured to be non-transmitted and transmitted only to the input shaft 32. At the same time, the upper protrusion 37 b provided on the upper portion of the slide member 37 and the fixed protrusion 46 c provided on the fixed engagement member 46 are engaged to fix the dehydrating shaft 26, thereby It is configured to prevent co-rotation.
[0033]
The operation in the above configuration will be described. When performing the washing and rinsing process by the rotation of the stirring blade 24, that is, when the rotation of the drive motor 35 is transmitted to the input shaft 32, the drive means connecting portion 39a of the lever drive means 39 is rotated and the position shown in FIG. By moving to the position shown in FIG. 2, the upper protrusion 37 b provided on the slide member 37 and the fixed protrusion 46 c provided on the fixed engagement member 46 are engaged with each other. Prevent turning around.
[0034]
Here, when the upper surface 37d (see FIG. 10) of the upper protruding portion 37b and the upper surface 46f of the fixed-side protruding portion 46c provided on the fixed-side engaging member 46 come into contact with each other, the spring constituting the mediating member 41 is extended. When the stirring blade 24 rotates and the washing and dewatering tub 23 rotates slightly, the upper projection 37b and the fixed projection 46c provided on the fixed engagement member 46 are engaged.
[0035]
At this time, even if the spring constituting the mediating member 41 is instantaneously contracted, the abutting portion 45e of the clutch lever 45 and the abutting portion 46h of the fixed side engaging member 46 come into contact with each other first, so that the upper protruding portion 37b. A gap is formed between the upper surface 37d of the upper surface and the bottom surface 46g of the fixed-side protrusion 46c provided on the fixed-side engaging member 46, so that it does not come into contact with force. In addition, a gap is also formed between the bottom surface 37e of the upper protrusion 37b and the upper surface 46f of the fixed-side protrusion 46c provided on the fixed-side engaging member 46. In addition, abnormal noise such as collision noise during washing operation can be reduced and noise reduction can be realized.
[0036]
(Example 2)
As shown in FIG. 5, the clutch lever 47 has a substantially U-shaped slide member support portion 47b that supports the slide member 37 from below at one end, and a clutch lever connection portion 47a that connects the mediating member 41 to the other end. And a shaft portion 47c that is rotatably supported by the rotation holding portion 46a of the fixed-side engagement member 46 provided on the holding member 42 that holds the stator 35c of the drive motor 35. A contact portion 47 f having an elastic body is provided in a part of the clutch lever 47. Other configurations are the same as those of the first embodiment.
[0037]
The operation in the above configuration will be described. When performing the washing and rinsing process by the rotation of the stirring blade 24, that is, when the rotation of the drive motor 35 is transmitted to the input shaft 32, the drive means connecting portion 39 a of the lever drive means 39 is set as in the first embodiment. By rotating and moving from the position of FIG. 1 to the position of FIG. 2, the upper projection 37 b provided on the upper portion of the slide member 37 and the fixed projection 46 c provided on the fixed engagement member 46 are engaged. The co-rotation of the washing and dewatering tub 23 is prevented.
[0038]
Here, when the upper surface 37d of the upper protruding portion 37b and the upper surface 46f of the fixed-side protruding portion 46c provided on the fixed-side engaging member 46 come into contact with each other, the spring constituting the intermediate member 41 is in an extended state, and the stirring blade When the rotation 24 and the washing / dehydrating tub 23 rotate slightly together, the upper projection 37b and the fixed projection 46c provided on the fixed engagement member 46 are engaged.
[0039]
At this time, even if the spring constituting the mediating member 41 is instantaneously contracted, the contact portion 47f having an elastic body on a part of the clutch lever 47 and the contact portion 46h of the fixed side engagement member 46 contact first. As a result, a gap is formed between the upper surface 37d of the upper protrusion 37b and the bottom surface 46g of the fixed-side protrusion 46c provided on the fixed-side engaging member 46, so that it does not contact with force. In addition, a gap is also formed between the bottom surface 37e of the upper protrusion 37b and the upper surface 46f of the fixed-side protrusion 46c provided on the fixed-side engaging member 46. In addition, abnormal noise such as collision noise during washing operation can be reduced and noise reduction can be realized.
[0040]
【The invention's effect】
As described above, according to the first aspect of the present invention, the hollow dewatering shaft for rotating the washing / dehydrating tub and the dewatering shaft are arranged substantially coaxially and arranged in the washing / dehydrating tub. A washing shaft for rotating the agitating blade provided; a drive motor for rotating the dewatering shaft and the washing shaft; a holding member for holding the drive motor; and a transmission of rotation of the drive motor by sliding up and down. A slide member that switches to one of the shafts, and a clutch lever that slides the slide member up and down by rotation; an upper projection is provided on the slide member; and the holding member is engaged with the upper projection A fixed-side engaging member having a fixed-side protrusion is attached, the clutch lever is provided with a contact portion, and the fixed-side engagement member is provided with a contact portion that contacts the contact portion of the clutch lever. , said upper protrusion When a Jogawa protrusion engages the abutment of the fixed-side engaging member and the abutment of the clutch lever by abutment of the bottom surface of the fixed-side protrusion and the upper surface of the upper projecting portion Since a gap is provided between the bottom surface of the upper protrusion and the upper surface of the fixed protrusion, it is possible to reduce abnormal sounds such as collision sound during switching to washing and washing operation, Low noise can be achieved.
[0041]
According to the second aspect of the present invention, since the elastic member is provided in at least one of the contact portions of the clutch lever and the fixed-side engagement member, the collision sound at the time of switching to washing or washing operation is provided. The abnormal noise such as can be reduced, and the noise can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a driving unit of a washing machine according to a first embodiment of the present invention during dehydration. FIG. 2 is a cross-sectional view of a driving unit of the washing machine during washing. ) Side view of the washing machine with a part of the fixed side engaging member cut away (b) Bottom view of the washing machine with the fixed side engaging member [FIG. 4] (a) Plan view of the clutch lever of the washing machine (b) ) Side view of the clutch lever of the washing machine [FIG. 5] (a) Top view of the clutch lever of the washing machine of the second embodiment of the present invention (b) Side view of the clutch lever of the washing machine [FIG. 6] Cross-sectional view of a conventional washing machine [FIG. 7] Cross-sectional view of a state where the drive unit of the washing machine is dehydrated [FIG. 8] Cross-sectional view of a state where the drive unit of the washing machine is washed [FIG. 9] (a) Sectional view of stationary side engaging member of the washing machine (b) Bottom view of stationary side engaging member of the washing machine [FIG. 10] (a) Top view of sliding member of the washing machine (b) Washing Sectional view of the slide member of the machine [Description of symbols]
23 Washing and Dewatering Tank 24 Agitating Blade 26 Dehydrating Shaft 29 Washing Shaft 35 Drive Motor 37 Slide Member 37b Upper Projection 37d Upper Projection Top 37e Upper Projection Bottom 42 Holding Member 45 Clutch Lever 46 Fixed Side Engagement Member 46c Fixed Side projection 46f Top surface of fixed side projection 46g Bottom surface of fixed side projection

Claims

A hollow dewatering shaft for rotating the washing and dewatering tub, a washing shaft for rotating a stirring blade disposed substantially coaxially with the dewatering shaft and disposed in the washing and dewatering tub, the dewatering shaft and the washing shaft A drive motor that rotates, a holding member that holds the drive motor, a slide member that switches transmission of rotation of the drive motor to either a dehydrating shaft or a washing shaft by sliding up and down, and the slide member that moves up and down by rotation A clutch lever for sliding, an upper protrusion is provided on an upper portion of the slide member, and a fixed engagement member having a fixed protrusion that engages with the upper protrusion is attached to the holding member, and the clutch the lever provided with abutments, the the fixed-side engaging member is provided an abutment which abuts against the contact portion of the clutch lever, when said upper protrusion and the fixed-side protrusion are engaged, the The clutch lever Wherein by the contact portion of the fixed-side engaging member contacts the parts, between the upper surface of the bottom and the fixed-side protrusion between the bottom surface of the fixed-side protrusion and the upper surface of the upper protrusion and the upper protrusion portion A washing machine with a gap.

The washing machine according to claim 1, wherein an elastic member is provided in at least one of the contact portions of the clutch lever and the fixed engagement member.