JP3812109B2

JP3812109B2 - Water flow switching device for washing machine

Info

Publication number: JP3812109B2
Application number: JP34488897A
Authority: JP
Inventors: 実池田
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1997-12-15
Filing date: 1997-12-15
Publication date: 2006-08-23
Anticipated expiration: 2017-12-15
Also published as: JPH11169591A

Description

【０００１】
【発明の属する技術分野】
本発明は、洗濯時の水流の切り替えを行う洗濯機の水流切替装置に関するものである。
【０００２】
【従来の技術】
近年、洗濯機におけるデザインの多様化に対する要求が高くなってきている。従来、この種の洗濯機の水流切替装置は、図１１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１１に示すように、洗濯タイムスイッチ１は、水流の反転時限を切り替え可能なレバー２を有し、このレバー２を支点２ａを中心として回動させることで、水流の反転時限を切り替えるように構成し、操作パネル３に取り付けている。第１の切替操作軸４は、操作パネル３に回動自在に設けて、水流を切り替えるもので、この第１の切替操作軸４に回動伝達部５を設け、この回動伝達部５と洗濯タイムスイッチ１のレバー２とを連動軸６により連結している。
【０００４】
第２の切替操作軸７は、操作パネル３に回動自在に設けて、排水の有無を切り替えるもので、この第２の切替操作軸７に排水弁（図示せず）に連結したコックロッド８を連結している。
【０００５】
上記構成において動作を説明すると、まず、初期設定状態から水流を変更したいときには、第１の切替操作軸４を図示の状態から反時計方向に回すことによって回動伝達部５が反時計方向に回動し、回動伝達部５に連結している連動軸６が左方向に移動し、連動軸６に連結している洗濯タイムスイッチ１のレバー２を押し、水流が切り替わる。
【０００６】
また、水流を元に戻すときには、第１の切替操作軸４を時計方向に回すことによって回動伝達部５が時計方向に回動し、回動伝達部５に連結している連動軸６が右方向に移動し、連動軸６に連結している洗濯タイムスイッチ１のレバー２を引っ張り、水流が初期設定状態へ切り替わる。
【０００７】
排水時には、第２の切替操作軸７を初期設定状態（図示の状態）から時計方向に回すことによって、コックロッド８が引っ張られ、コックロッド８と連結している排水弁が開かれ、排水が可能となる。
【０００８】
【発明が解決しようとする課題】
このような従来の構成においては、水流を切り替える第１の切替操作軸４と、排水の有無を切り替える第２の切替操作軸７とが別々に分かれ、それぞれ必要であり、部品点数が増加し、それに伴うコスト高につながっていた。また、第１の切替操作軸４を洗濯タイムスイッチ１の近傍に隣接して配設しなければならず、構成上の制約ともなっていた。
【０００９】
また、水流切替時には使用者の操作感を確保するために第２の切替操作軸７クリック感を持たせる機構が必要となり、操作パネル３の形状が複雑なものとなっていた。同時にクリック感を持たせる機構の必要性に伴って、構成部品の増加、コスト高の要因ともなっていた。
【００１０】
本発明は上記課題を解決するもので、１個の切替操作軸の回動により水流切替と排水切替とができるようにして、構成上の制約をなくし、より自由なパネルデザイン、タイムスイッチの配置を可能とするとともに、安価にすることを目的としている。
【００１１】
【課題を解決するための手段】
前記従来の課題を解決するために、本発明の洗濯機の水流切替え装置は、切替操作軸に回動伝達部を形成するとともに排水弁に連結したコックロッドを連結し、レバーの回動により水流の反転時限を切り替え可能な洗濯タイムスイッチのレバーと回動伝達部との間を連動軸により連結し、前記連動軸の構成は一端を前記回転伝達部のガイド部に遊嵌させ、他端を前記タイムスイッチのレバーに回動自在に支持したもので、切替操作軸の回動により水流切替と排水切替とを行えるようにしたものである。
【００１２】
これにより、１個の切替操作軸の回動により水流の切替と排水の切替とができ、構成上の制約をなくし、より自由なパネルデザイン、タイムスイッチの配置を可能とするとともに、安価にすることができる。
【００１３】
【発明の実施の形態】
本発明請求項１に記載の発明は、水流の切替と排水の切替とを行う切替操作軸と、この切替操作軸に形成した略円弧状のガイド部を有する回動伝達部と、前記切替操作軸に連結し排水弁に連結したコックロッドと、レバーの回動により水流の反転時限を切り替え可能な洗濯タイムスイッチと、前記回動伝達部と前記洗濯タイムスイッチのレバーとの間を連結する連動軸と、前記連動軸を所定方向に付勢するばねと、前記切替操作軸に圧接する位置決め用の板ばねとを備え、前記連動軸の一端に設けた突起を前記ガイド部に遊嵌し、他端に設けた連繋部を前記洗濯タイムスイッチのレバーに回動自在に支持し、前記切替操作軸の一方向への回転移動により前記ガイド部の一端で前記連動軸を押すこと、および前記切替操作軸の逆方向の回転移動により前記ばねの付勢力にて前記連動軸を復帰させることにより、前記洗濯タイムスイッチのレバー回動にて水流を切り替え、前記連動軸に設けた連繋部は、円柱接続部と前記円柱部接続部の上端に一体形成した洗濯タイムスイッチのレバーの穴径より径大の半球面形状とで構成し、かつ前記円柱接続部を垂直方向に２等分し、一定の間隔を有するよう配設したものである。
【００１４】
これにより、１個の切替操作軸の回動により水流の切替と排水の切替とができ、構成上の制約をなくすることができ、より自由なパネルデザイン、タイムスイッチの配置を可能とするとともに、安価にすることができる。
【００１５】
また、連動軸の洗濯タイムスイッチのレバーへの組み立て性において、半球面形状の連携部を垂直方向に２等分するとともに一定の間隔を持たせたので、連動軸を連結するときは、２分割された円柱状部が相互に接近し、洗濯タイムスイッチのレバーに容易に挿入でき、挿入後には分割部の反力によって脱落しないようにでき、組立性を向上できると同時に、挿入後の部品の信頼性を向上することができる。
【００１６】
さらに、洗濯タイムスイッチの故障等の際の交換の場合、連携部の先端を摘んで外径を小さくすれば、特殊な工具などを必要とせず容易に分離が可能となり、サービス性や分解整備性を向上できる構成を提供することができる。
【００１７】
本発明請求項２に記載の発明は、水流の切替と排水の切替とを行う切替操作軸と、この切替操作軸に形成した切り欠き部を有する扇形状の回動伝達部と、前記切替操作軸に連結し排水弁に連結したコックロッドと、レバーの回動により水流の反転時限を切り替え可能な洗濯タイムスイッチと、前記回動伝達部により回動可能に設けた第１の連動軸と、前記第１の連動軸と前記洗濯タイムスイッチのレバーとの間を連結する第２の連動軸とを備え、前記切替操作軸の回動により水流切替と排水切替とを行い、前記第１の連動軸は重り部を有し、前記回動伝達部の操作力が外れたとき、前記重り部の自重で前記第２の連動軸を介して前記洗濯タイムスイッチのレバーを復帰させて水流を切り替えるようにし、前記切替操作軸を排水状態に回動した時、前記回動伝達部は、前記第１の連動軸と干渉しないようにし、かつ前記回動伝達部は、前記第１の連動軸との受け部形状を傾斜面からの段差形状で形成したものである。
【００１８】
これにより、切替操作軸の回動動作は、ばねなど他の動力を使用することなく初期状態にもどすことができ、また、回動伝達部は切り欠き部を有する扇形状とした為、切替操作軸を排水状態に回動したとき、回動部は第１の連動軸と干渉しないので省スペース化でき、操作性においても第１連動軸と傾斜面を有する回動伝達部の接触が滑らかになるので、より確実な操作感を使用者に与えることができる。
【００１９】
【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。
【００２０】
（実施例１）
図１に示すように、切替操作軸９は、操作パネル３に回動自在に設けて、水流切替と排水切替とを行うもので、この切替操作軸９に回動伝達部１０を設け、この回動伝達部１０に略円弧状のガイド部１１を設けている。連動軸１２は、回動伝達部１０と洗濯タイムスイッチ１のレバー２とを連結するもので、図２に示すように、一端に設けた突起１３をガイド部１１に遊嵌し、他端に設けた連繋部１４を洗濯タイムスイッチ１のレバー２に回動自在に支持している。
【００２１】
ここで、ガイド部１１は、突起１３と同じ幅を持ち、水流、排水切替の動作範囲内において、突起１３の動きを支持することが可能な長さを有している。また、連繋部１４は、円柱部１５の上端にレバー２の穴径より大きい半球面形状１６を有し、洗濯タイムスイッチ１のレバー２に差し込むことによって回動自在の支持している。
【００２２】
ばね１７は、連動軸１２と操作パネル３との間に設け、水流切替の際に連動軸１２を復帰させるものである。板ばね１８は、切替操作軸９に面９ａまたは９ｂで圧接可能とし、この板ばね１８の押さえ力により水流切替時、排水切替時の切替操作軸９の位置決めをするとともに、使用者に操作感を持たせる働きをするようにしている。
【００２３】
上記構成において動作を説明する。洗濯時に水流を切り替えるときは、初期設定状態（図１の状態）から、図３に示すように、切替操作軸９を反時計方向に回動することにより、回動伝達部１０が反時計方向に回動すると、回動伝達部１０に設けているガイド部１１がこれと遊嵌している連動軸１２の突起１３を左方向へ押す。これにより、連繋部１４がレバー２を左端へと動かし、水流が切り替わる。
【００２４】
また、初期設定状態へ戻すときは、切替操作軸９を時計方向に回動することにより、回動伝達部１０を時計方向に回動すると、回動伝達部１０に設けているガイド部１１が連動軸１２の突起１３を押さえている状態から、突起１３の押さえでなくなり、ばね１６の引っぱり力により連動軸１２が右方向へ引っぱられ、連動軸１２に連結しているレバー２が同様に引っぱられることにより、水流を初期設定状態へ戻すことができる。
【００２５】
つぎに、排水を行う場合には、切替操作軸９を初期設定状態から、図４に示すように、時計方向に回動させることにより、切替操作軸９に設けたコックレバー１９が時計方向に回動し、コックレバー１９に連結しているコックロッド８が引っ張られ、コックロッド８に接続されている排水弁が同様に引っ張られて、排水することが可能となる。
【００２６】
これらの水流切替、排水切替時に切替操作軸９を回動させたとき、板ばね１８を切替操作軸９に一定の面で圧接しているので、板ばね１８の押さえ力により水流切替時、排水切替時の切替操作軸９の位置決めをして、機能動作以外の動きを抑制するとともに、使用者に操作感を持たせることができ、操作性を向上することができる。
【００２７】
また、連動軸１２に設けた連繋部１４は、円柱部１５の上端にレバー２の穴径より大きい半球面形状１６を有しているので、連繋部５とレバー３の接続を差込式にし、かつ差し込んだ後には、半球面形状１６がレバー２の穴径よりも大きいため、動作中に容易に脱落しないようにすることができ、組立性を向上できるとともに、機構部の信頼性を向上させることができる。
【００２８】
また、回動伝達部１０に設けたガイド部１１を略円弧状とすることにより、連動軸１２と回動伝達部１０の動作範囲を最小とし、機構上の占有スペースを最小にして、構成の自由度を向上できるとともに、他部品への干渉をなくし、機構信頼性を向上することができる。
【００２９】
なお、本実施例では、連動軸１２に設けた連繋部１４は、円柱部１５の上端にレバー２の穴径より大きい半球面形状１６を有しているが、図５に示すように、円柱状接続部２０を垂直方向に２等分するとともに、相互に一定の間隔を持たせて配設することによって、組立時には円柱状接続部２０をレバー３の穴径よりも小さくして、挿入を容易にし、挿入後には分割部の反力によって半球面形状部２０がレバー２の穴径よりも大きくなり、容易には脱落しないようにして、組立性を向上すると同時に、挿入後の部品の信頼性を向上することができる。また、洗濯タイムスイッチ１の故障や連動軸１２の破損などが起こった場合に、洗濯タイムスイッチ１や連動軸１２の交換時には、円柱状接続部２０の分割部を挟むと、容易にレバー２より取り外しが可能になり、故障時のサービス性を向上することができる。
【００３０】
（実施例２）
図６に示すように、切替操作軸２１は、操作パネル（図示せず）に回動自在に設けて、水流切替と排水切替とを行うもので、この切替操作軸２１に回動伝達部２２を設け、この回動伝達部２２にガイド部２３を設けている。連動軸２４は、回動伝達部２２と洗濯タイムスイッチ１のレバー２とを連結するものである。
【００３１】
ガイド部２３は、切替操作軸２１の反時計方向の回動により連動軸２４を押すことで水流を切り替えるとともに、切替操作軸２１の時計方向の回動により連動軸２４を復帰させて水流を切り替えるようにしている。また、切替操作軸２１を排水位置に回動したときは、回動する過程も含めて、連動軸２４の突起２５がガイド部２３に遊嵌することで、連動軸２４を介して洗濯タイムスイッチ１のレバー２に力が加わらず、移動しない形状としている。
【００３２】
また、図７に示すように、ガイド部２３に遊嵌した連動軸２４の突起２５に抜け止め部２６を設け、この抜け止め部２６は、初期設定状態から機能上動き得るあらゆる範囲内で、ガイド部２３と平行にはならない角度を持つようにしている。他の構成は上記実施例１と同じである。
【００３３】
上記構成において動作を説明する。洗濯時に水流を切り替えるときは、初期設定状態（図６の状態）から、切替操作軸２１を反時計方向に回動することにより、回動伝達部２２が反時計方向に回動すると、回動伝達部２２に設けているガイド部２３がこれと遊嵌している連動軸２４の突起２５を左方向へ押す。これにより、レバー２を左端へと動かし、水流が切り替わる。
【００３４】
また、初期設定状態へ戻すときは、切替操作軸２１を時計方向に回動することにより、回動伝達部２２を時計方向に回動すると、回動伝達部２２に設けているガイド部２３がこれと遊嵌している連動軸２４の突起２５を右方向へ押す。これにより、レバー２を右端へと動かし、水流を初期設定状態へ戻すことができる。
【００３５】
つぎに、排水を行う場合には、切替操作軸２１を初期設定状態から、時計方向に回動させることにより、切替操作軸２１に設けたコックレバー２７が時計方向に回動し、コックレバー２７に連結しているコックロッド（図示せず）が引っ張られ、コックロッドに接続されている排水弁が同様に引っ張られて、排水することが可能となる。
【００３６】
このとき、切替操作軸２１を時計方向に回動して排水位置に回動したときは、回動する過程も含めて、連動軸２４の突起２５がガイド部２３に遊嵌することで、連動軸２４を介して洗濯タイムスイッチ１のレバー２に力が加わらず、移動しない形状としているので、回動伝達部２２のガイド部２３に遊嵌した連動軸２４を洗濯タイムスイッチ１のレバー２と連結していても、切替操作軸２１を時計方向に回動して排水することができる。
【００３７】
また、連動軸２４の突起２５に設けた抜け止め部２６は、初期設定状態から機能上動き得るあらゆる範囲内でガイド部２３と平行にはならない角度を持つようにしているので、抜け止め部２６をガイド部２３に挿入するときには、差し込んで回動させるだけで装着が可能となり、同時に水流または排水切替時には抜け止め部２６とガイド部２３に脱落しない角度を持たせることで、構成が簡単で、かつ組立作業性を向上することができる。
【００３８】
（実施例３）
図８に示すように、切替操作軸２８は、操作パネル（図示せず）に回動自在に設けて、水流切替と排水切替とを行うもので、この切替操作軸２８に扇形状の回動伝達部２９を設け、排水弁（図示せず）に連結したコックロッド８を設けている。この回動伝達部２９は、第１の連動軸３０との受け部形状を、図９に示すように、傾斜面３１から段差形状３２を形成している。
【００３９】
第１の連動軸３０は、操作パネルに軸３３により回動可能に軸支し、回動伝達部２９により回動可能に設け、回動伝達部２９により押圧される部位と反対側に重り部３４を設けている。第２の連動軸３５は、軸３６により第１の連動軸３０に回動可能に連結し、第１の連動軸３０と洗濯タイムスイッチ１のレバー２との間を連結している。他の構成は上記実施例１と同じである。
【００４０】
上記構成において動作を説明する。洗濯時に水流を切り替えるときは、初期設定状態（図８の状態）から、切替操作軸２８を反時計方向に回動することにより、回動伝達部２９が反時計方向に回動すると、回動伝達部２９により第１の連動軸３０を押圧し、図１０に示すように、第１の連動軸３０を時計方向に回動し、第２の連動軸３５を左方向へ押す。これにより、レバー２を左端へと動かし、水流が切り替わる。
【００４１】
また、初期設定状態へ戻すときは、切替操作軸２８を時計方向に回動することにより、回動伝達部２９を時計方向に回動すると、回動伝達部２９と第１の連動軸３０との間が離れ、第１の連動軸３０は重り部３４に重量により反時計方向に回動し、第２の連動軸３５を右方向へ押す。これにより、レバー２を右端へと動かし、水流を初期設定状態へ戻すことができる。したがって、ばねなどの他の動力を用いることなく初期設定状態へ戻すことができ、部品点数を低減して、構成を簡素にすることができる。
【００４２】
つぎに、排水を行う場合には、切替操作軸２８を初期設定状態から、時計方向に回動させることにより、切替操作軸２８に設けたコックレバー３７が時計方向に回動し、コックレバー３７に連結しているコックロッド８が引っ張られ、コックロッド８に接続されている排水弁が同様に引っ張られて、排水することが可能となる。このとき、回動伝達部２９と第１の連動軸３０との間は離れた状態である。
【００４３】
ここで、回動伝達部２９は、切り欠き部を有する扇形状に形成し、切替操作軸２８を排水状態に回動したとき、回動伝達部２９が第１の連動軸３０と干渉しないようにしているので、回動伝達部２９の省スペース化を図るとともに、操作パネルの構成の複雑さをなくし、操作性を向上することができる。
【００４４】
また、回動伝達部２９は、第１の連動軸３０との受け部形状を傾斜面３１からの段差形状３２で形成しているので、水流切替時の第１の連動軸３０と回動伝達部２９との接触を滑らかなものにできるとともに、段差を設けることによって回動伝達部２９と第１の連動軸３０との接触面積を大きくすることができ、より確実な操作感を使用者に持たせることができる。
【００４５】
また、初期設定状態へ戻すとき、第１の連動軸３０を重り部３４に重量により反時計方向に回動している。これに対して、レバー２の戻し力にばねなどの他の動力を用いない方法もあるが、この場合、レバー２の動く範囲が非常に大きくなり、大きな動作面積を必要として、部品点数は削減できるものの、機構スペースが多く必要となり、構成の自由度を妨げるものとなる。本実施例では、非常に小さなスペース内に配設することが可能であり、構成の自由度の向上が可能になるとともに、ばねや他の動力を用いないため、機構の信頼性を向上することができる。
【００４６】
【発明の効果】
以上のように、本発明の請求項１の洗濯機の水流切替装置によれば、１個の切替操作軸の回動により連動軸を移動させて洗濯タイムスイッチのレバーを操作して水流切り替えを行い、前記レバーと連動軸を回動自在に支持する連携部は、円柱部の上端に半球面形状とし、かつこの円柱接続部を垂直に２分割して可撓性を有してレバーの穴に挿入するので、これにより、組み立て生産性、洗濯タイムスイッチ単体を取り外す際の分解サービス性に優れた構成で、構成上の制約をなくし、より自由なパネルデザイン、タイムスイッチの配置を可能とすることができる。
【００４７】
また、本発明の請求項２の洗濯機の水流切替装置によれば、切替操作軸と洗濯タイムスイッチのレバー間の連動軸を、一方向に回転を付勢するように重りを有した回動可能な第１の連動軸と、軸により回動可能に連結した第２の連動軸とで構成したので、ばね等の他の動力を用いることなく初期状態に戻すことができ、部品点数削減と構成の簡単化が図れ、また前記切替操作軸の第１の連動軸との回動伝達部は、切り欠き部を有する扇形状に形成したので、切替操作軸を排水状態にした時、前記回動伝達軸が第１の連動同軸と干渉しないので、同構成の省スペース化が図れるものである。
【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水流切替装置の一部切欠した背面図
【図２】（ａ）同洗濯機の水流切替装置の一部切欠した要部背面図
（ｂ）同洗濯機の水流切替装置の連動軸の側面図
【図３】同水流切替装置の水流を切り替えた状態の要部背面図
【図４】同水流切替装置の排水に切り替えた状態の要部背面図
【図５】同洗濯機の水流切替装置の連動軸の他の例の要部拡大斜視図
【図６】本発明の第２の実施例の洗濯機の水流切替装置の要部背面図
【図７】同洗濯機の水流切替装置の要部拡大断面図
【図８】本発明の第３の実施例の洗濯機の水流切替装置の要部背面図
【図９】同洗濯機の水流切替装置の回動伝達部の要部拡大斜視図
【図１０】同水流切替装置の水流を切り替えた状態の要部背面図
【図１１】従来の洗濯機の水流切替装置の背面図
【符号の説明】
１洗濯タイムスイッチ
２レバー
８コックロッド
９切替操作軸
１０回動伝達部
１２連動軸[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water flow switching device for a washing machine that switches water flow during washing.
[0002]
[Prior art]
In recent years, there has been an increasing demand for diversification of designs in washing machines. Conventionally, a water flow switching device of this type of washing machine has been configured as shown in FIG. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 11, the washing time switch 1 has a lever 2 capable of switching a water flow reversal time. By rotating the lever 2 around a fulcrum 2a, the water flow reversal time is switched. It is configured and attached to the operation panel 3. The first switching operation shaft 4 is rotatably provided on the operation panel 3 to switch the water flow. The first switching operation shaft 4 is provided with a rotation transmission unit 5. The lever 2 of the washing time switch 1 is connected by an interlocking shaft 6.
[0004]
The second switching operation shaft 7 is provided on the operation panel 3 so as to be rotatable, and switches the presence / absence of drainage. The cock rod 8 connected to the second switching operation shaft 7 with a drain valve (not shown). Are connected.
[0005]
The operation in the above configuration will be described. First, when it is desired to change the water flow from the initial setting state, the rotation transmitting portion 5 is rotated counterclockwise by turning the first switching operation shaft 4 counterclockwise from the illustrated state. The interlocking shaft 6 connected to the rotation transmitting portion 5 moves to the left, and the lever 2 of the washing time switch 1 connected to the interlocking shaft 6 is pushed, so that the water flow is switched.
[0006]
Further, when returning the water flow, the rotation transmission portion 5 is rotated clockwise by turning the first switching operation shaft 4 clockwise, and the interlocking shaft 6 connected to the rotation transmission portion 5 is It moves rightward and pulls the lever 2 of the washing time switch 1 connected to the interlocking shaft 6, and the water flow is switched to the initial setting state.
[0007]
At the time of draining, the cock rod 8 is pulled by turning the second switching operation shaft 7 clockwise from the initial setting state (shown state), the drain valve connected to the cock rod 8 is opened, and drainage is performed. It becomes possible.
[0008]
[Problems to be solved by the invention]
In such a conventional configuration, the first switching operation shaft 4 for switching the water flow and the second switching operation shaft 7 for switching the presence / absence of drainage are separately separated and necessary, respectively, and the number of parts increases. This led to high costs. In addition, the first switching operation shaft 4 must be disposed adjacent to the vicinity of the washing time switch 1, which is a structural limitation.
[0009]
In addition, in order to ensure the user's operational feeling when switching the water flow, a mechanism for giving the second switching operation shaft 7 a clicking feeling is required, and the shape of the operation panel 3 is complicated. At the same time, along with the necessity of a mechanism for giving a click feeling, it has been a factor of increase in the number of components and cost.
[0010]
The present invention solves the above-mentioned problems, and enables water flow switching and drainage switching by rotation of one switching operation shaft, eliminating configuration restrictions, more free panel design, and time switch arrangement. The purpose is to make it cheaper.
[0011]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, a water flow switching device for a washing machine according to the present invention includes a rotation transmission portion formed on a switching operation shaft and a cock rod connected to a drain valve, and the water flow is controlled by rotating a lever. The lever of the washing time switch capable of switching the reversal time of the rotation and the rotation transmission part are connected by an interlocking shaft, and the structure of the interlocking shaft is loosely fitted at one end to the guide part of the rotation transmission part, and the other end is It is supported by the lever of the time switch so as to be rotatable, and the water flow switching and drainage switching can be performed by rotating the switching operation shaft.
[0012]
As a result, it is possible to switch the water flow and the drainage by rotating one switching operation shaft, eliminating the restrictions on the configuration, enabling more free panel design and time switch arrangement, and reducing the cost. be able to.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there is provided a switching operation shaft that performs switching of water flow and switching of drainage, a rotation transmission portion having a substantially arcuate guide portion formed on the switching operation shaft, and the switching operation. A cock rod connected to the shaft and connected to the drain valve, a washing time switch capable of switching the reversal time of the water flow by turning the lever, and a linkage connecting the turning transmission part and the lever of the washing time switch A shaft , a spring that urges the interlocking shaft in a predetermined direction, and a positioning leaf spring that press-contacts the switching operation shaft, and a protrusion provided at one end of the interlocking shaft is loosely fitted to the guide portion, The connecting portion provided at the other end is rotatably supported by the lever of the washing time switch, and the interlocking shaft is pushed at one end of the guide portion by rotational movement in one direction of the switching operation shaft, and the switching Reverse rotation of the operating axis By returning the interlocking shaft more at the urging force of the spring, the wash switch the water flow in the time switch of the lever pivot, the interlocking shaft interlocking portion provided, the cylindrical connecting part and the cylindrical connecting portion A hemispherical shape that is larger than the hole diameter of the lever of the washing time switch integrally formed at the upper end of the cylinder, and the cylindrical connecting portion is divided into two equal parts in the vertical direction and arranged so as to have a constant interval. It is.
[0014]
As a result, the water flow can be switched and the drainage can be switched by rotating one switching operation shaft, so that there are no restrictions on the configuration, and more flexible panel design and time switch arrangement are possible. Can be cheaper.
[0015]
In addition, the assembly of the interlocking shaft to the washing time switch lever has been divided into two parts when connecting the interlocking shaft because the hemispherical interlocking portion is divided into two equal parts in the vertical direction and at a fixed interval. The cylindrical parts are close to each other and can be easily inserted into the lever of the washing time switch. After the insertion, it can be prevented from falling off due to the reaction force of the divided part, and the assembly can be improved. Reliability can be improved.
[0016]
Furthermore, when replacing the laundry time switch in the event of a failure, etc., if the outer diameter is reduced by grasping the tip of the linkage part, it can be easily separated without the need for special tools, etc. The structure which can improve can be provided.
[0017]
According to the second aspect of the present invention, there is provided a switching operation shaft for switching water flow and drainage, a fan-shaped rotation transmitting portion having a notch formed in the switching operation shaft, and the switching operation. A cock rod connected to the shaft and connected to the drain valve, a washing time switch capable of switching the reversal time of the water flow by turning the lever, and a first interlocking shaft provided rotatably by the turning transmission unit, and a second interlocking shaft connecting between the first interlocking shaft and the washing time switch lever, have rows and drainage switching the flow switching by the rotation of the switching operating shaft, said first The interlocking shaft has a weight portion, and when the operating force of the rotation transmitting portion is released, the weight of the weight portion returns the lever of the washing time switch via the second interlocking shaft to switch the water flow. The switching operation shaft was rotated to the drained state. The rotation transmitting portion is configured not to interfere with the first interlocking shaft, and the rotation transmitting portion is formed in a stepped shape from an inclined surface with respect to the first interlocking shaft. It is.
[0018]
As a result, the rotation operation of the switching operation shaft can be returned to the initial state without using other power such as a spring , and the rotation transmitting portion has a fan shape having a cutout portion. When the shaft is rotated to the drainage state, the rotating portion does not interfere with the first interlocking shaft, so that the space can be saved, and the contact between the first interlocking shaft and the rotation transmitting portion having the inclined surface is smooth even in operability. Therefore, a more reliable operational feeling can be given to the user.
[0019]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In addition, the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0020]
Example 1
As shown in FIG. 1, the switching operation shaft 9 is provided on the operation panel 3 so as to be rotatable, and performs water flow switching and drainage switching. The switching operation shaft 9 is provided with a rotation transmitting unit 10. The rotation transmission part 10 is provided with a substantially arcuate guide part 11. The interlocking shaft 12 connects the rotation transmitting part 10 and the lever 2 of the washing time switch 1 and, as shown in FIG. 2, the protrusion 13 provided at one end is loosely fitted to the guide part 11 and the other end is fitted. The provided connecting portion 14 is rotatably supported by the lever 2 of the washing time switch 1.
[0021]
Here, the guide part 11 has the same width as the protrusion 13 and has a length capable of supporting the movement of the protrusion 13 within the operation range of water flow and drainage switching. The connecting portion 14 has a hemispherical shape 16 larger than the hole diameter of the lever 2 at the upper end of the cylindrical portion 15, and is rotatably supported by being inserted into the lever 2 of the washing time switch 1.
[0022]
The spring 17 is provided between the interlocking shaft 12 and the operation panel 3, and returns the interlocking shaft 12 when the water flow is switched. The leaf spring 18 can be press-contacted to the switching operation shaft 9 by the surface 9a or 9b, and the pressing force of the leaf spring 18 positions the switching operation shaft 9 at the time of water flow switching or drainage switching, and also gives the user a feeling of operation. It is trying to work to have.
[0023]
The operation in the above configuration will be described. When the water flow is switched during washing, the rotation transmitting unit 10 is rotated counterclockwise by rotating the switching operation shaft 9 counterclockwise as shown in FIG. 3 from the initial setting state (state shown in FIG. 1). When the guide shaft 11 is rotated, the guide portion 11 provided in the rotation transmitting portion 10 pushes the protrusion 13 of the interlocking shaft 12 loosely fitted to the left direction. Thereby, the connection part 14 moves the lever 2 to the left end, and a water flow switches.
[0024]
Further, when returning to the initial setting state, when the rotation transmitting portion 10 is rotated clockwise by rotating the switching operation shaft 9 clockwise, the guide portion 11 provided in the rotation transmitting portion 10 is moved. From the state in which the protrusion 13 of the interlocking shaft 12 is pressed, the protrusion 13 is no longer pressed, the pulling force of the spring 16 pulls the interlocking shaft 12 to the right, and the lever 2 connected to the interlocking shaft 12 is similarly pulled. As a result, the water flow can be returned to the initial setting state.
[0025]
Next, when draining, the cock lever 19 provided on the switching operation shaft 9 is rotated clockwise by turning the switching operation shaft 9 clockwise from the initial setting state as shown in FIG. The cock rod 8 that rotates and is connected to the cock lever 19 is pulled, and the drain valve connected to the cock rod 8 is similarly pulled to allow drainage.
[0026]
When the switching operation shaft 9 is rotated during these water flow switching and drainage switching, the leaf spring 18 is pressed against the switching operation shaft 9 on a fixed surface. By positioning the switching operation shaft 9 at the time of switching, it is possible to suppress movements other than functional operations and to give the user a feeling of operation, thereby improving operability.
[0027]
Further, since the connecting portion 14 provided on the interlocking shaft 12 has a hemispherical shape 16 larger than the hole diameter of the lever 2 at the upper end of the cylindrical portion 15, the connection between the connecting portion 5 and the lever 3 is made a plug-in type. And, since the hemispherical shape 16 is larger than the hole diameter of the lever 2 after being inserted, it can be prevented from easily falling off during operation, improving the assembling property and improving the reliability of the mechanism part. Can be made.
[0028]
Further, by making the guide part 11 provided in the rotation transmission part 10 into a substantially arc shape, the operating range of the interlocking shaft 12 and the rotation transmission part 10 is minimized, and the occupied space on the mechanism is minimized, so The degree of freedom can be improved, interference with other parts can be eliminated, and the mechanism reliability can be improved.
[0029]
In this embodiment, the connecting portion 14 provided on the interlocking shaft 12 has a hemispherical shape 16 larger than the hole diameter of the lever 2 at the upper end of the cylindrical portion 15, but as shown in FIG. The columnar connection portion 20 is divided into two equal parts in the vertical direction, and is arranged with a certain distance from each other so that the columnar connection portion 20 is smaller than the hole diameter of the lever 3 at the time of assembly. After insertion, the hemispherical shape portion 20 becomes larger than the hole diameter of the lever 2 due to the reaction force of the divided portion, so that it does not easily fall off, improving the assemblability, and at the same time, reliability of the parts after insertion Can be improved. In addition, when the washing time switch 1 or the interlocking shaft 12 is damaged, when the washing time switch 1 or the interlocking shaft 12 is replaced, if the divided portion of the cylindrical connecting portion 20 is sandwiched, the lever 2 can be easily Removal is possible, and serviceability at the time of failure can be improved.
[0030]
(Example 2)
As shown in FIG. 6, the switching operation shaft 21 is rotatably provided on an operation panel (not shown) to perform water flow switching and drainage switching. The rotation transmission portion 22 is connected to the switching operation shaft 21. And a guide portion 23 is provided on the rotation transmission portion 22. The interlocking shaft 24 connects the rotation transmitting unit 22 and the lever 2 of the washing time switch 1.
[0031]
Guide unit 23 switches the water flow by pressing the interlocking shaft 24 by the rotation in the counterclockwise direction of the switching operation shaft 21, the water flow to return the interlocking shaft 24 by a total of the direction of rotation when the switching operation shaft 21 I try to switch. In addition, when the switching operation shaft 21 is rotated to the drainage position, including the process of rotation, the protrusion 25 of the interlocking shaft 24 is loosely fitted to the guide portion 23, so that the washing time switch is connected via the interlocking shaft 24. No force is applied to the 1 lever 2 so that it does not move.
[0032]
Further, as shown in FIG. 7, a retaining portion 26 is provided on the protrusion 25 of the interlocking shaft 24 loosely fitted to the guide portion 23, and this retaining portion 26 can be functionally moved from the initial setting state, The angle is not parallel to the guide portion 23. Other configurations are the same as those of the first embodiment.
[0033]
The operation in the above configuration will be described. When the water flow is switched at the time of washing, when the rotation transmitting portion 22 is rotated counterclockwise by rotating the switching operation shaft 21 counterclockwise from the initial setting state (the state shown in FIG. 6), the rotation is performed. The guide part 23 provided in the transmission part 22 pushes the protrusion 25 of the interlocking shaft 24 loosely fitted thereto in the left direction. Thereby, the lever 2 is moved to the left end, and the water flow is switched.
[0034]
When returning to the initial setting state, when the rotation transmitting portion 22 is rotated clockwise by rotating the switching operation shaft 21 clockwise, the guide portion 23 provided in the rotation transmitting portion 22 is moved. The protrusion 25 of the interlocking shaft 24 loosely fitted with this is pushed rightward. Thereby, the lever 2 can be moved to the right end, and the water flow can be returned to the initial setting state.
[0035]
Next, when draining, when the switching operation shaft 21 is rotated clockwise from the initial setting state, the cock lever 27 provided on the switching operation shaft 21 is rotated clockwise. A cock rod (not shown) connected to the cock rod is pulled, and a drain valve connected to the cock rod is pulled in the same manner to allow drainage.
[0036]
At this time, when the switching operation shaft 21 is rotated clockwise to the drainage position, the protrusion 25 of the interlocking shaft 24 is loosely fitted to the guide portion 23 including the process of rotating, thereby interlocking. Since force is not applied to the lever 2 of the washing time switch 1 via the shaft 24 and the shape does not move, the interlocking shaft 24 loosely fitted to the guide portion 23 of the rotation transmitting portion 22 is connected to the lever 2 of the washing time switch 1. Even if connected, the switching operation shaft 21 can be drained by rotating clockwise.
[0037]
Further, the retaining portion 26 provided on the protrusion 25 of the interlocking shaft 24 has an angle that is not parallel to the guide portion 23 within any range in which it can function from the initial setting state. Is inserted into the guide portion 23, and can be mounted simply by turning it into the guide portion 23. At the same time, when the water flow or drainage is switched, the retaining portion 26 and the guide portion 23 have an angle that does not fall off, and the configuration is simple. And assembly workability | operativity can be improved.
[0038]
Example 3
As shown in FIG. 8, the switching operation shaft 28 is rotatably provided on an operation panel (not shown) to perform water flow switching and drainage switching. The switching operation shaft 28 has a fan-shaped rotation. A transmission portion 29 is provided, and a cock rod 8 connected to a drain valve (not shown) is provided. As shown in FIG. 9, the rotation transmitting portion 29 forms a stepped shape 32 from the inclined surface 31 as a receiving portion shape with the first interlocking shaft 30.
[0039]
The first interlocking shaft 30 is pivotally supported on the operation panel by a shaft 33, provided so as to be rotatable by a rotation transmission unit 29 , and a weight portion on the opposite side to the portion pressed by the rotation transmission unit 29. 34 is provided. The second interlocking shaft 35 is rotatably connected to the first interlocking shaft 30 by a shaft 36, and connects between the first interlocking shaft 30 and the lever 2 of the washing time switch 1. Other configurations are the same as those of the first embodiment.
[0040]
The operation in the above configuration will be described. When switching the water flow at the time of washing, when the rotation transmitting portion 29 is rotated counterclockwise by rotating the switching operation shaft 28 counterclockwise from the initial setting state (the state of FIG. 8), the rotation is performed. The first interlocking shaft 30 is pressed by the transmission unit 29, and as shown in FIG. 10, the first interlocking shaft 30 is rotated clockwise, and the second interlocking shaft 35 is pushed leftward. Thereby, the lever 2 is moved to the left end, and the water flow is switched.
[0041]
When returning to the initial setting state, when the rotation transmitting portion 29 is rotated clockwise by rotating the switching operation shaft 28 in the clockwise direction, the rotation transmitting portion 29 and the first interlocking shaft 30 are rotated. The first interlocking shaft 30 rotates counterclockwise due to the weight of the weight 34 and pushes the second interlocking shaft 35 rightward. Thereby, the lever 2 can be moved to the right end, and the water flow can be returned to the initial setting state. Therefore, it is possible to return to the initial setting state without using other power such as a spring, and it is possible to reduce the number of parts and simplify the configuration.
[0042]
Next, when draining, when the switching operation shaft 28 is rotated clockwise from the initial setting state, the cock lever 37 provided on the switching operation shaft 28 is rotated clockwise. The cock rod 8 connected to the cock rod 8 is pulled, and the drain valve connected to the cock rod 8 is similarly pulled to allow drainage. At this time, the rotation transmitting unit 29 and the first interlocking shaft 30 are in a separated state.
[0043]
Here, the rotation transmitting unit 29 is formed in a fan shape having a notch so that the rotation transmitting unit 29 does not interfere with the first interlocking shaft 30 when the switching operation shaft 28 is rotated to the drained state. Therefore, it is possible to save the space of the rotation transmission unit 29, eliminate the complexity of the configuration of the operation panel, and improve the operability.
[0044]
Moreover, since the rotation transmission part 29 forms the receiving part shape with the 1st interlocking shaft 30 by the level | step difference shape 32 from the inclined surface 31, it rotates with the 1st interlocking shaft 30 at the time of water flow switching. The contact with the portion 29 can be made smooth, and the contact area between the rotation transmitting portion 29 and the first interlocking shaft 30 can be increased by providing a step so that a more reliable operation feeling can be provided to the user. You can have it.
[0045]
Further, when returning to the initial setting state, the first interlocking shaft 30 is rotated counterclockwise by the weight 34 on the weight 34. On the other hand, there is a method in which other power such as a spring is not used for the return force of the lever 2, but in this case, the range of movement of the lever 2 becomes very large, requiring a large operating area and reducing the number of parts. Although it is possible, a lot of mechanism space is required, which hinders freedom of configuration. In this embodiment, it is possible to arrange in a very small space, and it becomes possible to improve the degree of freedom of the configuration and to improve the reliability of the mechanism because no spring or other power is used. Can do.
[0046]
【The invention's effect】
As described above, according to the water flow switching device of the washing machine of claim 1 of the present invention, the water flow switching is performed by operating the lever of the washing time switch by moving the interlocking shaft by the rotation of one switching operation shaft. The linkage portion that rotatably supports the lever and the linkage shaft has a hemispherical shape at the upper end of the cylinder portion, and the cylinder connection portion is divided into two vertically so as to be flexible. As a result, it is possible to remove the restrictions on the configuration, and to allow more flexible panel design and time switch arrangement, because of the excellent assembly serviceability and disassembly serviceability when removing the washing time switch alone. be able to.
[0047]
According to the water flow switching device for a washing machine of claim 2 of the present invention, the pivot having a weight so as to urge the rotation of the interlocking shaft between the switching operation shaft and the lever of the washing time switch in one direction. Since it is composed of a first interlocking shaft that can be rotated and a second interlocking shaft that is rotatably connected by the shaft, it can be returned to the initial state without using other power such as a spring, and the number of parts can be reduced. The structure can be simplified, and the rotation transmission portion of the switching operation shaft with respect to the first interlocking shaft is formed in a fan shape having a cutout portion. Since the dynamic transmission shaft does not interfere with the first interlocking coaxial, space saving of the same configuration can be achieved.
[Brief description of the drawings]
FIG. 1 is a partially cutaway rear view of a water flow switching device of a washing machine according to a first embodiment of the present invention. FIG. 2 (a) is a partially cutaway rear view of a water flow switching device of the washing machine. b) Side view of the interlocking shaft of the water flow switching device of the washing machine [Fig. 3] Rear view of the main part of the water flow switching device with the water flow switched [Fig. 4] Key point of the water flow switching device switched to drainage FIG. 5 is an enlarged perspective view of the main part of another example of the interlocking shaft of the water flow switching device of the washing machine. FIG. 6 is a back view of the main part of the water flow switching device of the washing machine according to the second embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of the main part of the water flow switching device of the washing machine. FIG. 8 is a rear view of the main part of the water flow switching device of the washing machine according to the third embodiment of the present invention. Fig. 10 is an enlarged perspective view of the main part of the rotation transmission part of the water flow switching device. Fig. 10 is a rear view of the main part in a state where the water flow of the water flow switching device is switched. Rear view of a flow switching device [Description of symbols]
DESCRIPTION OF SYMBOLS 1 Washing time switch 2 Lever 8 Cock rod 9 Switching operation shaft 10 Rotation transmission part 12 Interlocking shaft

Claims

A switching operation shaft for switching between water flow and drainage, a rotation transmission portion having a substantially arcuate guide portion formed on the switching operation shaft, and a cock rod connected to the switching operation shaft and connected to a drain valve A washing time switch capable of switching the reversal time of the water flow by rotating the lever, an interlocking shaft connecting the rotation transmitting portion and the lever of the washing time switch, and attaching the interlocking shaft in a predetermined direction. And a positioning leaf spring that presses against the switching operation shaft, a protrusion provided at one end of the interlocking shaft is loosely fitted to the guide portion, and a connecting portion provided at the other end is connected to the washing time. The spring is supported by a lever of the switch so that the interlocking shaft is pushed at one end of the guide portion by rotating the switching operation shaft in one direction, and the switching operation shaft is rotated in the reverse direction. With the urging force of By returning the moving shaft, the water flow is switched by rotating the lever of the washing time switch, and the connecting portion provided on the interlocking shaft is formed integrally with the column connecting portion and the upper end of the column connecting portion. A water flow switching device for a washing machine, which has a hemispherical shape larger than the hole diameter of the lever, and is arranged so that the columnar connecting portion is divided into two equal parts in the vertical direction and has a constant interval .

A switching operation shaft for switching between water flow and drainage, a fan-shaped rotation transmission portion having a notch formed in the switching operation shaft, and a cock rod connected to the switching operation shaft and connected to a drain valve When the washing time switch capable of switching reversal timing of water flow by the rotation of the lever, the first and interlocking shaft, the first the washing time switch and interlocking shaft of which is provided rotatably by the rotation conveying units and a second interlocking shaft for connecting the lever, have rows and drainage switching the flow switching by the rotation of the switching operating shaft, said first interlocking shaft has a weight portion, the times When the operation force of the motion transmission part is released, the weight of the weight part is used to switch the water flow by returning the lever of the washing time switch via the second interlocking shaft, so that the switching operation shaft is in a drained state When rotating, the rotation transmitting portion is Do not interfere with the interlocking shaft and the rotation transmitting unit, washing machine water switching device formed in step shape from the inclined surface receiving portion shape of the first interlocking shaft.