1351457 九、發明說明 【發明所屬之技術領域】 本發明關於藉由攪拌體的旋轉之泵浦作用，由泵浦室 將洗衣槽內的洗滌液抽出，再由洗衣槽的上部吐出之洗衣 機。 【先前技術】 以往以來，在縱型的全自動洗衣機，具有在配設於洗 衣槽的內底部的攪拌體的裏面設有泵浦葉片，在與該槽底 部之間形成泵浦室，並且在洗衣槽的側壁部設有由前述泵 浦室朝上方延伸的循環水路之洗衣機。在這種洗衣機中， 進行下述循環，即，藉由攪拌體進而泵浦葉片的旋轉，使 得洗衣槽內的洗滌液由泵浦室通過循環水路而被抽出，再 由設置於循環水路的上部的吐出口吐出至洗衣槽內。藉此 ，洗滌液由上方對洗衣槽內的洗滌物進行灑水，可提高洗 淨性能（例如參照專利文獻1 )。 又，上述循環水路是藉由設置成使塑膠製的覆蓋構件 覆蓋於例如洗衣槽的主體部之內周面，並且以墊圈將這些 構件之間予以水密地密封來形成的。在此情況，循環水路 的吐出口（覆蓋構件的上端部）是位於安裝在洗衣槽的上 端之平衡環的下部。 在上述結構，由於循環水路的吐出口位於較平衡環更 下方的位置，故，在例如洗衣槽內的洗滌物量多（洗滌液 的水位高）之情況時，會有洗漉物來到較吐出口更高的位 -5- 1351457 置，造成無法由洗滌物的上方進行洗滌液的灑水，無法謀 求大幅提昇洗滌性能之問題產生。即，期望將循環水路的 吐出口設置於高的位置，使得即使對位於洗衣槽的上部之 洗滌物亦可充分地進行灑水、洗淨。因此，例如在專利文 獻2中，揭示有使前述循環水路由洗衣槽的內周面朝上方 延伸至平衡環的內側，在其前端設置吐出口之結構者。 〔專利文獻1〕日本特開2003-326091號公報 〔專利文獻2〕日本特開平1 - 1 465 84號公報（圖1 ) 【發明內容】 〔發明所欲解決之課題〕 但，如上述專利文獻2，在欲將循環水路的吐出口配 置於平衡環的內側之際，會產生下述問題點。即，設置於 洗衣槽的上部之平衡環會有較主體部更朝內周側突出之情 況產生。因此，如上述專利文獻1，在藉由洗衣槽的內周 面與覆蓋構件形成循環水路之情況，即使由洗衣槽的主體 部至平衡環，欲形成循環水路，也會在洗衣槽的內周面形 成相當於平衡環的突出量之階差，產生因該階差部造成不 易水密化之問題》在此情況，爲了由吐出口強力地灑水， 確保循環水路的充分之水密性的這一點極爲重要。 又，作爲其他結構，在覆蓋構件本身設置循環水路， 即，將覆蓋構件全體構成上下長的導管狀（筒狀），將其 內部作爲循環水路，來代替以洗衣槽的內周面與覆蓋構件 來形成循環水路。然而，在此結構，需要以分成前後兩個 -6- 1351457 導管形成構件'來構成覆蓋構件，且藉由熔接等來接 個構件。因此，造成用來製作覆蓋構件的製程或設 複雜，導致成本大幅上升。並且，在主體部的內周 由於構成循環水路的背面部之壁成爲所謂的雙重壁 會造成材料或洗衣槽的容積上之浪費等的缺失產生 本發明是有鑑於上述情事而開發完成之發明， 在於提供一種洗衣機，其爲在洗衣槽的側壁部，設 抽出洗滌水並由上方進行灑水的循環水路者，能夠 水路的吐出口設置於高位置，卻具有優良的循環水 性，且能夠較簡單、廉價的結構即可達成之洗衣機 〔用以解決課題之手段〕 爲了達到上述目的，本發明的洗衣機，是具有 洗衣槽，該洗衣槽爲於圓筒狀的主體部下部具備有 器狀的槽底部，並且在前述主體部的上端部連結有 而構成的，在配設於前述洗衣槽的內底部的攪拌體 設有泵浦葉片，在與該槽底部之間形成泵浦室，在 衣槽的側壁部設有朝上下方向延伸的循環水路，使 槽內的洗滌液由前述泵浦室通過前述循環水路後抽 該洗衣槽的上部吐出之洗衣機，其特徵爲：前述循 是由從前述泵浦室的流出口在前述主體部的內側壁 方延伸的第1通水空間、與連通於此第1通水空間 部並進一步朝上方延伸的第2通水空間所構成，並 第1通水空間是藉由設置成將朝上下方向延伸的第 合該兩 備變得 壁部， ，故， 〇 其目的 有用來 將循環 路水密 縱軸型 圓形容 平衡環 的裏面 前述洗 該洗衣 出，由 環水路 部朝上 的上端 且前述 1覆蓋 1351457 構件對前述主體部的內周面存在有空隙地加以覆蓋，並且 對前述第1覆蓋構件的裏面側與前述主體部的內周面之間 ，藉由第1密封構件，跨越左右兩側及上部的方式予以水 密地密封來構成，前述第1覆蓋構件一體地具有由前述第 1密封構件的上部密封部分進一步朝上方延伸的延長部， 並且位於前述上部密封部分的下部而設有連通用開口部， 前述第2通水空間是藉由設置成將在上部形成有吐出口的 第2覆蓋構件對包含前述第1覆蓋構件的表面側的前述開 口部及延長部的上部部分進行覆蓋，並且將前述第2覆蓋 構件的裏面側與前述第1覆蓋構件之間予以水密地密封來 構成（請求項1的發明）。 在本發明的洗衣機，設置於洗衣槽的側壁部之循環水 路是由從泵浦室的流出口在主體部的內側壁部朝上方延伸 的第1通水空間、與連通於此第1通水空間並進一步朝上 方延伸的第2通水空間所構成。在構成此第2通水空間的 第2覆蓋構件的上部設有吐出口。當攪拌體對洗衣槽旋轉 時，藉由泵浦葉片的旋轉，洗蘇液由泵浦室，在第1通水 空間上升，通過開口部，進一步被抽出至第2通水空間， 然後更進一步上升而由吐出口吐出至洗衣槽內。 此時，因構成循環水路的第1通水空間是在第1覆蓋 構件的裏面側與無階差、接***坦的形狀（平緩地彎曲） 之主體部的內周面之間，藉由第1密封構件加以水密地密 封，所以，可獲得高密封性。又，構成循環水路的第2通 水空間，雖在第2覆蓋構件的裏面側與第1覆蓋構件的表 -8- 1351457 面側之間進行密封，但因可將第1覆蓋構件的密封面做成 無階差的平坦面或接***坦的面，所以，可獲得高密封性 。因此，作爲循環水路全體，能夠獲得高密封性。又，亦 會有第1通水空間的開口部配置於叫密封部更下側，即叫 主體部的上端部（平衡環）更下側之情況，但，藉由第2 通水空間，延長較其更上方，所以能夠將吐出口配置於更 高的位置，進而能夠獲得高洗淨性能。並且，延長第1覆 蓋構件’在該部分的前面側配置第2覆蓋構件即可，所以 ’第2覆蓋構件能夠較小者來達成。又，循環水路的密封 是藉由密封構件來進行，所以，不需採用熔接等的手段， 能夠採用卡合等的安裝結構。因此，能夠較簡單的結構來 達成。 〔發明效果〕 若根據本發明之洗衣機的話，爲在洗衣槽的側壁部， 設有用來抽出洗滌水並由上方進行灑水的循環水路者，能 夠達到下述效果，即，將循環水路的吐出口設置於高位置 ’卻具有優良的循環水路水密性，且能夠較簡單、廉價的 結構即可達成之效果。 【實施方式】 以下，根據圖面，說明關於本發明的一實施形態。 圖3是示意地顯示本實施形態之縱型洗衣機（全自動 洗衣機）的全體結構。在此，在大致呈矩形的外箱2之內 -9- 1351457 部，用來聚集洗滌液的水槽3受到彈性吊持機構4所彈性 地支承而設置著。在此水槽3內，設有收納未圖示的洗滌 物之縱軸型洗衣槽5，在該洗衣槽5的內底部，設有攪拌 體6。針對前述洗衣槽5如後述。 在水槽3的底部外面，涉有作爲旋轉驅動源之洗衣機 馬達7，並且安裝有傳達洗衣機馬達7的旋轉來將前述洗 衣槽5及蓋板6旋轉驅動之機構部8。此時，前述攪拌體 6連結於洗衣機馬達7的旋轉軸7a被旋轉驅動。又，在 機構部8，設有未圖示的離合器，當進行洗衣及洗清時， 洗衣機馬達7的旋轉僅被傳達至攪拌體6,在進行脫水時 ，被傳達至洗衣槽5與攪拌體6。在此情況，在進行洗衣 時，攪拌體6正反旋轉，當進行脫水時，洗衣槽5及攪拌 體6 —體地高速旋轉。 且，在水槽3的底部形成有排水口 9，排水閥1〇及 排水軟管11連接於該排水口。又，在前述外箱2的上部 部分，設有頂蓋12。雖省略圖示及詳細說明，在此頂蓋 12設有洗滌物出入口及開關該出入口之蓋13，並且設有 位於背面側且由供水閥等所構成之供水機構，並設有位於 前面側且由具備各種開關或顯示裝置的操作面板、微電腦 等所構成之控制裝置等》 其次1說明關於前述洗衣槽5。此洗衣槽5亦如圖1 所示，由圓筒狀的主體部15、連結於此主體部15的下端 部之槽底部16、及連結於前述主體部15的上端部之平衡 環1 7所構成。 -10- 1351457 前述主體部15亦如圖4所示，藉由將金屬板例如不 銹鋼的平板彎曲成圓筒狀後藉由鉚接或熔接予以接合，藉 此構成上下兩面開放之圓筒狀。又，如圖1至圖3所示， 在此主體部15，形成有多數個脫水用通水孔18。再者， 此通水孔18是形成於除了後述的循環水路19及棉絮捕捉 用通水路（未圖示）以外的部分。 前述平衡環17是如眾所皆知，對由塑膠所構成的中 空圓環狀的本體內收納氯化鉀或氯化鈉等爲主成分之一體 來構成的。此平衡環1 7是藉由例如螺絲固定等連結於前 述主體部15的上端部。此時，如圖1至圖3所示，做成 平衡環17的外周壁部成爲與主體部15大致相同面的狀態 ，因此成爲平衡環17的內周側朝洗衣槽5的內周側突出 之狀態。 前述槽底部16是塑膠製且形成爲圓形容器狀，藉由 鉚接及螺絲固定來結合於前述主體部15的下部。又，槽 底部16的上面之圓形區域，如圖1、圖4、圖5所示，作 爲較周緣更低的凹狀部21，在與前述攪拌體6之間形成 有泵浦室20。針對泵浦室20如後述。槽底部16的前述 凹狀部21之外周部分，即在連結於主體部15之部分，如 圖4、5所示，形成有階差部22、及錐面壁部23。其中， 如圖4所示，在槽底部16的外周部中間隔分離角度120 度之3個部位，形成有切削有階差部22及錐面壁部23的 形狀之凹部24。此凹部24與前述凹狀部21呈連續，作 爲泵浦室20的流出口 25。 -11 - 1351457 再者，如後述般地，3個部位的流出口 25中，兩個 部位連通於循環水路19’另一個部位連通於棉絮除去用 循環路徑。又，如圖5所示，在階差部22中成爲此流出 口 25的兩側之上部的部分，形成有肋載置部26、26。在 各肋載置部26，形成有***孔27、27。 又，前述攪拌體6呈表面（上面）具有水流產生用凸 部之圓板狀，在其裏面，一體地設有複數片栗浦葉片31 。前述泵浦葉片31呈朝攪拌體6的大致半徑方向延伸之 薄板狀，配置於前述泵浦室20(槽底部16的凹狀部21) 內。藉此，構成離心泵浦，藉由攪拌體6的旋轉，將洗衣 槽5內的洗滌液（水、或溶解有洗劑之水）朝泵浦室20 的外周方向（3個流出口 25)吐出。 在前述洗衣槽5的側壁部，如以下的方式設有：由前 述泵浦室20抽出洗衣槽5內的洗滌液並由洗衣槽5的上 部吐出（灑水）用之循環水路19。 在本實施形態，如圖1所示，循環水路1 9是由從泵 浦室20的流出口 25在主體部15的內壁部朝上方延伸之 第1通水空間41、及連通於此第1通水空間41的上端部 並更進一步朝上方延伸之第2通水空間42所構成。 即，第1通水空間41在前述主體部15的內周面設置 第1覆蓋構件43，並且藉由作爲第1密封構件的墊圈44 、45將這些第1覆蓋構件43的裏面側與主體部15的內 周面之間’在左右側壁部及上部的範圍內予以水密地密封 來構成的。 -12- 1351457 前述第1覆蓋構件43是由塑膠的成形品所構成，如 圖5至圖8、圖11所示，一體地具備有：全體爲在上下 方向長的大致板狀，配置於前述主體部15的內周面側之 主要部51;設置於此主要部51的下部，用以覆蓋槽底部 16的凹部24之下側連結部52;及由前述主要部51的上 部朝上方延伸並設置之延長部53。此時，第1覆蓋構件 43是如圖12、圖13所示，呈具有朝與成爲主體部15的 曲面相反測彎曲的橫剖面之圓弧狀。 前述下側連結部52是如圖5所示，配置成將設置於 前述槽底部1 6的凹部24之內周面側隔著間隔予以封閉。 亦如圖7、圖1 1所示，在此下側連結部52的下部形成有 肋部54，藉由將此肋部54載置成橋接於爲在前述流出口 25的兩側之肋載置部26、26間，來構成流出口 25的上 壁部分。此時，在肋部54的兩端部下面形成有銷55、55 ，這些銷55卡合於前述***孔27、27。 又，在主要部51的裏面側（洗衣槽5側）之左右兩 側緣部，複數個卡合用鉤件56以並列於縱向的方式一體 形成。如圖5所示，在前述主體部15，形成有對應前述 各卡合用鉤件56之複數個卡合孔57，藉由前述各卡合用 鉤件56卡合於這些卡合孔57，來將第1覆蓋構件43安 裝於洗衣槽5。 在第1覆蓋構件4 3的裏面側，如圖7所示，在前述 主要部51及下側連結部52的範圍，一體地設有全體呈上 下長的倒U字狀之墊圈保持槽58。此墊圈保持槽58是分 -13- 1351457 別朝前述肋部54的左右側邊部之上方延伸，並且這些保 持槽是在後述的開口部59的正上方連結的形態來形成的 。再者，在第1覆蓋構件43的裏面側’一體地設有強度 保持用複數個補強用肋，但在圖7中省略其一部分。 此時，亦如圖8所示，墊圈保持槽58中之上部部分 做成：比起左右兩側，槽寬度大之擴大槽部5 8a。又，在 此擴大槽部58a，以位於相對向的內壁間的中間的方式設 有複數支在此情況爲2支的小徑銷60、60。又，在銷60 的左右中之一方側（在圖7、圖8爲右側），形成有由內 周側的內壁延伸至槽的中央之肋部60a，在銷60、60的 左右中之另一方側（在圖7、圖8爲左側），形成有由外 周側的內壁延伸至槽的中央爲止之肋部60b。 如前述般，在此墊圈保持槽58內，如圖7所示，作 爲第1密封構件的有端帶狀之2條墊圈44、45位於左右 位置並被保持。這些墊圈44、45是由例如發泡橡膠、發 泡樹脂等的發泡材料所構成，形成爲剖面呈矩形。又，墊 圈44、45的下端部44a、45a分別卡合固定於前述肋部 54的左右端部，墊圈44的上端部4 4b則在擴大槽部58a 的肋部60a及外周側的內壁被壓入固定，墊圈45的上端 部45b在擴大槽部58a的肋部6 0b及內周側的內壁被壓入 固定。此時，墊圈44、45的 '各上端部44b、45b彼此， 在擴大槽部58a，針對墊圈保持槽58(擴大槽部58a)的 延伸方向重疊於上下的狀態被收納，墊圈44、45的上端 部44b、45b則分別被壓入固定於墊圈保持槽58的內壁與 -14- 1351457 銷60之間。藉此，墊圈44、45的上端部44b、45b彼此 在銷60、60間被密接。 藉此，第1覆蓋構件43在被安裝於洗衣槽5的側壁 部之狀態下，2條的墊圈44、45密接於前述主體部15的 內周面，呈水密地密封。藉此，形成在前述主體部15的 側壁部朝上下延伸之第1通水空間41。此時，第1通水 空間41的下端部連通於泵浦室20的流出口 25，在第1 通水空間4 1的上端部設有開口部5 9。又，利用2條的墊 圈44、45之上部密封部位於主體部15的上端部分（較平 衡環17更下方的位置），因此開口部59也成爲位於較平 衡環17更下方的位置。再者，如圖1及圖5所示，在第 1覆蓋構件43的主要部51之高度方向的中間部，形成有 在低水位成爲灑水口的橫長狀吐出口 62。 一體地設置於第1覆蓋構件43之延長部53是如圖1 、圖2、圖6所示，以由前述主要部51的上端部即利用 墊圈44、45之上部密封部分朝洗衣槽5的內周側傾斜的 方式朝上方延伸，其上端部位於平衡環17的內側。此延 長部53是在與前述主要部51的表面部連成一串的框狀部 63的內側，經由後退一階的框狀突緣部64，朝內側凹陷 的大致呈矩形之凹部65所構成。此時，在構成凹部65的 下部之部分，開口形成有前述開口部59。突緣部64的表 面（後述的密封部分）形成爲大致呈平坦狀。在此突緣部 64的上邊中央部的一部位及左右兩邊之各兩部位（共五 部位）’分別形成有卡合用鉤件66。此時，卡合用鉤件 -15- 1351457 66位於前述第1通水空間41的密封部分（墊圈44、45 ) 的外側而形成。又在突緣部64的下邊的左右兩端部，如 圖6所示，形成有可供用來取下後述的第2覆蓋構件71 之一字起子***之缺口部67、67。再者，如圖2所示， 前述延長部53的上端部內側面抵接於前述平衡環17的內 周面》 其次，前述第2覆蓋構件71是如圖5、圖9至圖11 所示，由塑膠的成形品所構成，形成爲用來覆蓋前述延長 部53的凹部65(突緣部64)的表面之大致呈矩形的蓋狀 。此第2覆蓋構件71的前面部如圖5、圖13所示，呈平 緩的彎曲形狀，又在其上部，形成有橫長的吐出口 72。 在此第2覆蓋構件71的外周緣部，一體地設有朝裏面側 豎立之周壁部73，在此周壁部73，形成有對應前述卡合 用鉤件66之共5個的卡合孔部74。此第2覆蓋構件71 對前述第1覆蓋構件43，可由洗衣槽5的內周側裝設（ 裝卸）。 藉由密封此第2覆蓋構件71的裏面側與前述第1覆 蓋構件43的表面側之間，獲得後述的第2通水空間42之 水密性。在此，作爲密封構件，使用後述的第2密封構件 ’如以下所述般地，對第2覆蓋構件的周圍部全周範圍予 以水密地密封爲佳。 在第2覆蓋構件71的裏面側之周圍部，如圖9、圖 10所示，用來保持後述的墊圈75之墊圈保持槽76在全 周延伸成封閉環狀（矩形框狀）被設置著。此墊圈保持槽 -16- 1351457 部 餘 如 支 銷 之 的 部 同 j 端 的 周 方 部 部 77 77 示 部 76是藉由在前述周壁部73的內側隔著預定間隔設置壁 來形成，但此墊圈保持槽76中的上邊部分作爲比起剩 的部分槽寬度廣之擴大槽部76a。在此擴大槽部76a， 圖9所示，以位於相對向的中間之位置的方式設有複數 例如2支小徑的銷77、77。又，在擴大槽部76a中之 77、77的左右兩側，由外周側的內壁延伸至槽的中央 肋部77a各形成3個（共6個），在圖9中，在銷77 左側，形成有1個由內周側的內壁延伸至槽的中央之肋 77b 〇 作爲第2密封構件的墊圏75是與前述墊圈44、45 樣地，由例如發泡橡膠、發泡樹脂等的發泡材料所構成 剖面形成爲矩形狀。在此，墊圈75是形成爲1條的有 帶狀，被保持於前述墊圈保持槽76內。此時，墊圈75 —端部75a被壓入固定於擴大槽部76a的肋部77a與內 側的內壁之間、及肋部7 7b與外周側的內壁之間，另一 的端部75b被壓入固定於肋部77a與內周側的內壁之間 且’墊圈75的端部75a、75b的前端側是在端部75a 75b彼此在擴大槽部76a重疊於墊圈保持槽76(擴大槽 7 6a)之延伸的一方向的狀態下被收納著，墊圈75的端 75a、75b分別被壓入固定於墊圈保持槽76的內壁與銷 之間。藉此，墊圈75的端部75a、75b彼此在銷77、 間密接。 如以上方式所構成之第2覆蓋構件7 1是如圖n所 ’安裝成封住前述第1覆蓋構件43的延長部53之凹 -17- 1351457 65的前面，在該安裝狀態下，第2覆蓋構件71的前面大 致與框狀部63呈相同面。此時，第2覆蓋構件71是藉由 形成於突緣部64的卡合用鉤件66卡合於形成在周壁部 73的卡合孔部74，來對第1覆蓋構件43卡合固定。又， 在此安裝狀態下，墊圈75密接於突緣部64的表面，予以 水密地密封。藉此，如圖2等所示，在第1覆蓋構件43 的凹部65的內周，由第2覆蓋構件71，及墊圈75形成 第2通水空間42。此第2通水空間42是設置成一邊由前 述開口部59朝內周側傾斜，一邊朝上方延伸，前述吐出 口 72配置於平衡環17的內側。 再者，未圖示的棉絮除去用通水路徑爲較上述循環水 路19低的結構，在上部的吐出口裝設有棉絮過濾器。 其次，說明關於上述結構的作用。 在洗衣（及洗清）時，攪拌體6進而泵浦葉片31會 正逆旋轉。於是，藉由泵浦葉片31的旋轉，洗衣槽5內 的洗滌液由泵浦室20的流出口 25被送至循環水路19, 通過循環水路19的第1通水空間41，且通過開口部59, 進一步被抽輸至第2通水空間42。然後，由設置於第2 通水空間42的上部之吐出口 72對洗衣槽5內吐出洗滌液 ，藉此進行洗滌液的循環。因此，能夠對洗衣槽5內的洗 滌物’由循環水路19的高位置即與平衡環17相同高度位 置將洗滌液灑向洗滌物。 在此’因第2通水空間42設置成一邊由前述開口部 5 9朝內周側傾斜’一邊朝上方延伸，所以，可將由第1 -18- 1351457 通水空間41朝上方被抽出的洗滌液之流向，朝斜前 變方向。藉此，由第2覆蓋構件71的吐出口 72所吐 洗滌液也成爲朝向斜前方，亦可將洗滌液施加到位於 衣槽5內的吐出口 72遠之位置的洗滌物，可提高洗 能。 因構成循環水路19的第1通水空間41，在第1 構件43的裏面側與無階差且接***坦的形狀（平緩 曲）之主體部15的內周面之間，藉由墊圈44、45加 密地密封，所以，能夠獲得高密封性。又，構成循環 19的第2通水空間42，雖在第2覆蓋構件71的裏面 第1覆蓋構件43的表面側之間被密封，但因第1覆 件43的密封面（突緣部64的表面）爲無階差的平坦 所以，能夠獲得高密封性。因此，作爲循環水路19 ，可獲得高的密封性。 並且，因將第1覆蓋構件43延長，在該部分的 側配置第2覆蓋構件71即可，所以，第2覆蓋構件' 以較小者達成。對於各自的第1覆蓋構件43及第2 構件71，亦可能較簡單的結構達成，成形模的結構 變得複雜。又，循環水路19的密封是藉由墊圈75來 ，所以，不需採用熔接等的手段，能夠採用卡合等的 結構。因此，能夠較簡單的結構達成，組裝作業性也 〇 且，購成本實施形態的循環水路19之第1及第 蓋構件43、71，不需要如以往的製作構成導管狀循 方改 出的 距洗 淨性 覆蓋 地彎 以水 水路 側與 蓋構 面， 全體 前面 71能 覆蓋 不會 進行 安裝 良好 2覆 環水 -19-BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine in which a washing liquid in a washing tank is taken out by a pumping chamber by a pumping action of a rotating body of a stirring body, and then discharged from an upper portion of the washing tank. [Prior Art] In the past, a vertical full-automatic washing machine has a pumping blade provided inside a stirring body disposed at an inner bottom of the washing tank, a pumping chamber formed between the bottom of the tank, and The side wall portion of the washing tub is provided with a washing machine which is a circulating water passage extending upward from the pump chamber. In such a washing machine, a cycle is performed in which the washing liquid in the washing tank is extracted by the pumping chamber through the circulating water passage by the rotation of the stirring body and the pumping vane, and is disposed in the upper portion of the circulating water passage. The spit outlet is spit out into the laundry tank. Thereby, the washing liquid is sprinkled with the laundry in the washing tank from above, and the washing performance can be improved (for example, see Patent Document 1). Further, the circulating water passage is formed by covering a plastic covering member with, for example, an inner peripheral surface of a main body portion of the washing tub, and sealing the members with each other by watertight sealing. In this case, the discharge port of the circulating water passage (the upper end portion of the covering member) is located at the lower portion of the balance ring installed at the upper end of the washing tank. In the above configuration, since the discharge port of the circulating water passage is located below the balance ring, for example, when the amount of laundry in the washing tank is large (the water level of the washing liquid is high), the washing material may be discharged. The higher position of the outlet -5 - 1351457 is caused by the fact that the washing liquid cannot be sprinkled from above the laundry, and the problem of greatly improving the washing performance cannot be achieved. That is, it is desirable to set the discharge port of the circulating water passage to a high position so that the laundry located on the upper portion of the washing tub can be sufficiently sprinkled and washed. For this reason, for example, Patent Document 2 discloses a structure in which the inner peripheral surface of the circulating water routing washing tub is extended upward to the inner side of the balance ring, and a discharge port is provided at the tip end. [Patent Document 1] JP-A-2003-326091 (Patent Document 2) Japanese Laid-Open Patent Publication No. Hei No. Hei. 2. When the discharge port of the circulating water passage is to be placed inside the balance ring, the following problems occur. That is, the balance ring provided at the upper portion of the washing tub may be protruded toward the inner peripheral side from the main body portion. Therefore, as described in the above Patent Document 1, in the case where the circulating water path is formed by the inner circumferential surface of the washing tank and the covering member, even if the circulation water path is formed by the main body portion of the washing tank to the balance ring, it is also in the inner circumference of the washing tank. The surface is formed to have a step difference corresponding to the amount of protrusion of the balance ring, which causes a problem that the stepped portion is less likely to be water-tight. In this case, in order to strongly sprinkle water from the discharge port, sufficient watertightness of the circulation water passage is ensured. Extremely important. Further, as another configuration, a circulating water passage is provided in the covering member itself, that is, the entire covering member is formed in a duct shape (tubular shape) that is vertically long, and the inside thereof is used as a circulating water passage instead of the inner peripheral surface of the washing tank and the covering member. To form a circulating waterway. However, in this configuration, it is necessary to constitute the covering member by dividing the front and rear two -6 - 1351457 conduit forming members ', and joining the members by welding or the like. Therefore, the process or design used to fabricate the covering member is complicated, resulting in a substantial increase in cost. Further, in the inner circumference of the main body portion, the wall constituting the rear surface portion of the circulating water passage is a so-called double wall, which causes a waste of material or the volume of the washing tub. The present invention has been developed in view of the above circumstances. Provided is a washing machine which is provided with a circulating water passage for extracting washing water from the side wall portion of the washing tank and sprinkling water from above. The discharge port of the water passage can be installed at a high position, but has excellent circulating water quality and can be relatively simple. In order to achieve the above object, a washing machine of the present invention has a washing tank which is provided with a tank-shaped groove at a lower portion of a cylindrical main body portion. a bottom portion is connected to the upper end portion of the main body portion, and a stirring blade disposed at an inner bottom portion of the washing tank is provided with a pumping blade, and a pumping chamber is formed between the bottom portion and the bottom portion of the tank. The side wall portion is provided with a circulating water passage extending in the up-and-down direction, so that the washing liquid in the tank passes through the aforementioned circulating water passage from the pumping chamber, and the laundry is pumped. The washing machine that is discharged from the upper portion of the tank is characterized in that the first water passing space extending from the inner side wall of the main body portion from the outlet of the pump chamber and the first water passing space portion Further, the second water-passing space is formed to extend upward, and the first water-passing space is formed by a wall portion that is disposed to extend in the vertical direction, so that the purpose is to circulate The inside of the watertight vertical axis type circular tolerance ring is washed by the upper end of the water passage portion, and the first covering 1351457 member covers the inner peripheral surface of the main body portion with a gap, and the foregoing (1) The back surface of the cover member and the inner peripheral surface of the main body portion are configured to be watertightly sealed so as to span the left and right sides and the upper portion by the first sealing member, and the first covering member integrally includes the first An extension portion of the upper sealing portion of the sealing member further extending upward, and a lower portion of the upper sealing portion is provided with a communication opening portion, and the second water passing space The second covering member having the discharge port formed in the upper portion covers the opening portion and the upper portion of the extended portion including the surface of the first covering member, and the back side of the second covering member is The first covering members are watertightly sealed to each other (the invention of claim 1). In the washing machine of the present invention, the circulating water passage provided in the side wall portion of the washing tub is a first water passing space that extends upward from the inner wall portion of the main body portion from the outlet of the pumping chamber, and communicates with the first water passing therethrough. The space is formed by a second water-passing space that extends further upward. A discharge port is provided in an upper portion of the second covering member constituting the second water passing space. When the agitating body rotates toward the washing tub, the washing liquid is lifted by the pumping chamber in the first water passing space by the rotation of the pumping vane, and is further drawn out to the second water passing space through the opening portion, and then further It rises and is spit out into the washing tank by the spout. At this time, the first water-passing space constituting the circulating water passage is between the inner surface of the main body portion of the first covering member and the inner peripheral surface of the main body portion having a shape that is not flat and is flat (flatly curved). The sealing member is hermetically sealed, so that high sealing properties can be obtained. Further, the second water-passing space constituting the circulating water passage is sealed between the back side of the second covering member and the surface of the first covering member on the surface of the surface of the first covering member, but the sealing surface of the first covering member can be sealed. A flat surface having no step difference or a surface close to a flat surface is obtained, so that high sealing property can be obtained. Therefore, as the entire circulation water path, high sealing performance can be obtained. Further, the opening portion of the first water-passing space may be disposed on the lower side of the sealing portion, that is, the upper end portion (balance ring) of the main body portion may be lower than the lower portion, but the second water-passing space is extended. More than this, it is possible to arrange the discharge port at a higher position, and it is possible to obtain high washing performance. Further, since the first covering member is extended, the second covering member is disposed on the front side of the portion, so that the second covering member can be made smaller. Further, since the sealing of the circulating water passage is performed by the sealing member, it is not necessary to use a means such as welding, and a mounting structure such as engagement can be employed. Therefore, it can be achieved with a simpler structure. [Effect of the Invention] According to the washing machine of the present invention, in the side wall portion of the washing tub, a circulating water passage for extracting the washing water and sprinkling water from above is provided, and the effect of the circulation water passage is obtained. The outlet is placed at a high position, but it has excellent watertightness of the circulating water channel, and the effect can be achieved with a simpler and cheaper structure. [Embodiment] Hereinafter, an embodiment of the present invention will be described based on the drawings. Fig. 3 is a view schematically showing the overall configuration of a vertical type washing machine (automatic washing machine) of the embodiment. Here, the water tank 3 for collecting the washing liquid is elastically supported by the elastic suspending mechanism 4 in the portion of the substantially rectangular outer casing 2, -9 - 1351457. In the water tank 3, a vertical axis type washing tank 5 for storing laundry (not shown) is provided, and a stirring body 6 is provided at the inner bottom of the washing tank 5. The aforementioned washing tank 5 will be described later. On the outer surface of the bottom of the water tank 3, a washing machine motor 7 as a rotational driving source is involved, and a mechanism portion 8 for transmitting the rotation of the washing machine motor 7 to rotationally drive the washing tub 5 and the cover 6 is attached. At this time, the agitating body 6 is rotatably coupled to the rotating shaft 7a of the washing machine motor 7. Further, the mechanism unit 8 is provided with a clutch (not shown), and when the washing and washing are performed, the rotation of the washing machine motor 7 is transmitted only to the agitating body 6, and when the dehydration is performed, it is transmitted to the washing tank 5 and the agitating body. 6. In this case, when the laundry is being carried out, the agitating body 6 is rotated in the forward and reverse directions, and when the dehydration is performed, the washing tank 5 and the agitating body 6 are rotated at a high speed. Further, a drain port is formed at the bottom of the water tank 3, and a drain valve 1A and a drain hose 11 are connected to the drain port. Further, a top cover 12 is provided in an upper portion of the outer casing 2. Although the illustration and detailed description are omitted, the top cover 12 is provided with a laundry inlet and outlet and a lid 13 for opening and closing the inlet and outlet, and a water supply mechanism including a water supply valve or the like on the back side and provided on the front side. A control device composed of an operation panel or a microcomputer including various switches or display devices, etc. Next, the above-described washing tank 5 will be described. As shown in Fig. 1, the washing tank 5 is composed of a cylindrical main body portion 15, a groove bottom portion 16 connected to the lower end portion of the main body portion 15, and a balance ring 17 connected to the upper end portion of the main body portion 15. Composition. -10- 1351457 As shown in Fig. 4, the main body portion 15 is formed by bending a metal plate such as a stainless steel flat plate into a cylindrical shape and then joining by caulking or welding, thereby forming a cylindrical shape in which both upper and lower surfaces are opened. Further, as shown in FIGS. 1 to 3, a plurality of water-discharging water holes 18 for dehydration are formed in the main body portion 15. In addition, the water-passing hole 18 is formed in a portion other than the circulating water passage 19 and the baffle catching water passage (not shown) which will be described later. The balance ring 17 is known as a main body composed of a main component such as potassium chloride or sodium chloride in a hollow annular body made of plastic. The balance ring 17 is coupled to the upper end portion of the main body portion 15 by screwing or the like, for example. In this case, as shown in FIG. 1 to FIG. 3, the outer peripheral wall portion of the balance ring 17 is substantially flush with the main body portion 15. Therefore, the inner peripheral side of the balance ring 17 protrudes toward the inner peripheral side of the washing tub 5. State. The groove bottom portion 16 is made of plastic and formed into a circular container shape, and is coupled to the lower portion of the main body portion 15 by caulking and screwing. Further, as shown in Figs. 1, 4, and 5, the circular area on the upper surface of the groove bottom portion 16 is a concave portion 21 having a lower peripheral edge, and a pumping chamber 20 is formed between the agitating body 6 and the agitating body 6. The pumping chamber 20 will be described later. The outer peripheral portion of the concave portion 21 of the groove bottom portion 16, that is, the portion connected to the main body portion 15, as shown in Figs. 4 and 5, has a step portion 22 and a tapered wall portion 23. As shown in Fig. 4, in the outer peripheral portion of the groove bottom portion 16, three portions separated by an angle of 120 degrees are formed, and a concave portion 24 having a shape in which the step portion 22 and the tapered wall portion 23 are cut is formed. This concave portion 24 is continuous with the aforementioned concave portion 21 as an outflow port 25 of the pumping chamber 20. Further, as will be described later, in the outflow port 25 of the three portions, the other portion communicates with the other portion of the circulating water passage 19' to communicate with the breeze removing circulation path. Further, as shown in Fig. 5, rib placing portions 26, 26 are formed in portions of the step portion 22 which are upper portions of both sides of the outflow port 25. Insertion holes 27 and 27 are formed in each of the rib mounting portions 26. Further, the agitating body 6 has a disk shape having a water flow generating convex portion on the surface (upper surface), and a plurality of chestnut blades 31 are integrally provided therein. The pump blade 31 has a thin plate shape extending in the substantially radial direction of the agitating body 6, and is disposed in the pump chamber 20 (the concave portion 21 of the groove bottom portion 16). Thereby, the centrifugal pump is configured, and the washing liquid (water or the water in which the lotion is dissolved) in the washing tank 5 is directed to the outer circumferential direction of the pumping chamber 20 (three outlets 25) by the rotation of the agitating body 6. Spit out. In the side wall portion of the washing tank 5, a circulating water passage 19 for discharging the washing liquid in the washing tank 5 from the pumping chamber 20 and discharging (sprinkling) from the upper portion of the washing tank 5 is provided as follows. In the present embodiment, as shown in FIG. 1, the circulating water passage 19 is a first water-passing space 41 that extends upward from the inner wall portion of the main body portion 15 from the outflow port 25 of the pumping chamber 20, and communicates with this. The upper end portion of the water passing space 41 is formed by a second water passing space 42 that extends further upward. In other words, the first water-passing space 41 is provided with the first covering member 43 on the inner circumferential surface of the main body portion 15, and the back surface side and the main body portion of the first covering member 43 are provided by the washers 44 and 45 as the first sealing members. The inner peripheral surface of 15 is configured to be watertightly sealed in the range of the left and right side wall portions and the upper portion. -12- 1351457 The first covering member 43 is formed of a molded article of plastic, and is integrally provided with a substantially plate shape that is long in the vertical direction as shown in FIG. 5 to FIG. 8 and FIG. a main portion 51 on the inner peripheral surface side of the main body portion 15; a lower portion of the main portion 51 provided to cover the lower side connecting portion 52 of the recess portion 24 of the groove bottom portion 16; and an upper portion of the main portion 51 extending upward and The extension portion 53 is provided. At this time, as shown in Figs. 12 and 13, the first covering member 43 has an arc shape having a transverse cross section that is curved opposite to the curved surface of the main body portion 15. As shown in Fig. 5, the lower connecting portion 52 is disposed such that the inner peripheral surface side of the recessed portion 24 provided in the groove bottom portion 16 is closed at intervals. As shown in FIGS. 7 and 11 , a rib 54 is formed in a lower portion of the lower connecting portion 52, and the rib 54 is placed to be bridged to the rib on both sides of the outflow port 25. Between the portions 26 and 26, the upper wall portion of the outflow port 25 is formed. At this time, pins 55 and 55 are formed on the lower surfaces of both end portions of the rib portion 54, and these pins 55 are engaged with the insertion holes 27 and 27. Further, on the right and left side edges of the main portion 51 on the back side (the side of the washing tub 5), a plurality of engaging hook members 56 are integrally formed in parallel in the longitudinal direction. As shown in FIG. 5, a plurality of engagement holes 57 corresponding to the respective engagement hooks 56 are formed in the main body portion 15, and the engagement hooks 56 are engaged with the engagement holes 57. The first covering member 43 is attached to the washing tank 5. As shown in Fig. 7, as shown in Fig. 7, in the range of the main portion 51 and the lower connecting portion 52, a washer retaining groove 58 having an inverted U-shape that is vertically upward is integrally provided. The washer holding groove 58 is formed so as to extend upward from the left and right side portions of the rib portion 54, and these holding grooves are formed to be connected directly above the opening portion 59 to be described later. Further, a plurality of reinforcing ribs for strength retention are integrally provided on the back side ′ of the first covering member 43, but a part thereof is omitted in Fig. 7 . At this time, as shown in Fig. 8, the upper portion of the gasket holding groove 58 is formed by enlarging the groove portion 58a having a larger groove width than the left and right sides. Further, the groove portion 58a is enlarged, and a plurality of small diameter pins 60 and 60 which are two in this case are provided so as to be located between the opposite inner walls. Further, on one of the right and left sides of the pin 60 (on the right side in FIGS. 7 and 8), a rib 60a extending from the inner wall on the inner circumference side to the center of the groove is formed, and is formed in the left and right of the pins 60 and 60. The other side (left side in FIGS. 7 and 8) is formed with a rib 60b extending from the inner wall on the outer peripheral side to the center of the groove. As described above, in the gasket holding groove 58, as shown in Fig. 7, the two end gaskets 44, 45 as the first sealing member are placed at the left and right positions and held. These gaskets 44, 45 are made of a foamed material such as foamed rubber or foamed resin, and are formed in a rectangular cross section. Further, the lower end portions 44a and 45a of the washers 44 and 45 are respectively engaged and fixed to the right and left end portions of the rib portion 54, and the upper end portion 44b of the washer 44 is surrounded by the rib portion 60a of the enlarged groove portion 58a and the inner wall on the outer peripheral side. The press-fitting is fixed, and the upper end portion 45b of the washer 45 is press-fitted and fixed to the rib 60b of the enlarged groove portion 58a and the inner wall on the inner peripheral side. At this time, the upper end portions 44b and 45b of the washers 44 and 45 are accommodated in the expanded groove portion 58a in a state in which the extending direction of the washer holding groove 58 (enlarged groove portion 58a) is superposed on the upper and lower sides, and the washers 44 and 45 are accommodated. The upper end portions 44b, 45b are respectively press-fitted and fixed between the inner wall of the gasket retaining groove 58 and the 141-1351457 pin 60. Thereby, the upper end portions 44b, 45b of the washers 44, 45 are in close contact with each other between the pins 60, 60. In the state in which the first covering member 43 is attached to the side wall portion of the washing tank 5, the two gaskets 44 and 45 are in close contact with the inner peripheral surface of the main body portion 15, and are hermetically sealed. Thereby, the first water-passing space 41 that extends upward and downward on the side wall portion of the main body portion 15 is formed. At this time, the lower end portion of the first water passing space 41 communicates with the outflow port 25 of the pumping chamber 20, and the opening portion 59 is provided at the upper end portion of the first water passing space 41. Further, since the upper seal portions of the two spacers 44 and 45 are located at the upper end portion of the main body portion 15 (a position lower than the balance ring 17), the opening portion 59 is also located below the balance ring 17. Further, as shown in Fig. 1 and Fig. 5, a horizontally long discharge port 62 which is a sprinkler at a low water level is formed in an intermediate portion of the main portion 51 of the first covering member 43 in the height direction. The extension portion 53 integrally provided in the first covering member 43 is as shown in Figs. 1, 2, and 6, and the upper end portion of the main portion 51 is the upper portion of the main portion 51, that is, the upper portion of the gasket 44, 45 is sealed toward the washing tank 5. The inner peripheral side is inclined to extend upward, and the upper end portion is located inside the balance ring 17. The extended portion 53 is formed inside the frame-like portion 63 which is connected to the surface portion of the main portion 51, and is formed by a substantially rectangular concave portion 65 which is recessed toward the inside by the frame-like flange portion 64 which is stepped back. At this time, the opening portion 59 is formed in the opening at a portion constituting the lower portion of the recessed portion 65. The surface of the flange portion 64 (the sealing portion to be described later) is formed in a substantially flat shape. The engaging hook member 66 is formed in each of the central portion of the upper edge portion of the flange portion 64 and the two portions (a total of five portions) of the left and right sides. At this time, the engaging hook member -15-1351457 66 is formed outside the sealing portion (the gaskets 44, 45) of the first water passing space 41. Further, as shown in Fig. 6, the left and right end portions of the lower side of the flange portion 64 are formed with cutout portions 67 and 67 for inserting one of the second cover members 71, which will be described later. Further, as shown in Fig. 2, the inner surface of the upper end portion of the extension portion 53 abuts against the inner circumferential surface of the balance ring 17". Next, the second covering member 71 is as shown in Figs. 5 and 9 to 11, The plastic molded article is formed into a substantially rectangular lid shape for covering the surface of the concave portion 65 (the flange portion 64) of the extension portion 53. As shown in Figs. 5 and 13, the front portion of the second covering member 71 has a gently curved shape, and a horizontally long discharge port 72 is formed in the upper portion thereof. The outer peripheral edge portion of the second covering member 71 is integrally provided with a peripheral wall portion 73 that is erected toward the back side, and the peripheral wall portion 73 is formed with a total of five engaging hole portions 74 corresponding to the engaging hook members 66. . The second covering member 71 can be attached (detached) to the inner peripheral side of the washing tub 5 with respect to the first covering member 43. The watertightness of the second water-passing space 42 to be described later is obtained by sealing the back side of the second covering member 71 and the surface side of the first covering member 43. Here, as the sealing member, it is preferable to use a second sealing member hereinafter, as described below, to seal the entire circumference of the peripheral portion of the second covering member in a watertight manner. As shown in FIGS. 9 and 10, the gasket holding groove 76 for holding the gasket 75, which will be described later, is provided in a peripheral portion of the back surface side of the second covering member 71 so as to extend in a closed loop shape (rectangular frame shape) over the entire circumference. . The washer retaining groove 16-1351351 has a portion such as a pin and a peripheral portion 77 77 of the j end. The portion 76 is formed by providing a wall at a predetermined interval inside the peripheral wall portion 73, but the washer retaining groove The upper portion of 76 is an enlarged groove portion 76a having a wider groove width than the remaining portion. Here, the groove portion 76a is enlarged, and as shown in Fig. 9, a plurality of pins 77 and 77 having a plurality of small diameters are provided so as to be located at a position intermediate the opposite direction. Further, on the left and right sides of the enlarged groove portions 76a, the inner ribs 77a extending from the inner wall on the outer peripheral side to the central ribs 77a of the grooves are formed in three (a total of six), and in Fig. 9, on the left side of the pin 77 The rib 77, which is formed by the inner wall of the inner peripheral side and extends to the center of the groove, is formed as a second sealing member, and is formed of, for example, a foamed rubber or a foamed resin. The cross section of the foamed material is formed into a rectangular shape. Here, the gasket 75 is formed in a strip shape and held in the gasket holding groove 76. At this time, the end portion 75a of the washer 75 is press-fitted between the rib 77a fixed to the enlarged groove portion 76a and the inner wall of the inner side, and between the rib portion 7b and the inner wall on the outer peripheral side, and the other end portion 75b Pressed between the rib 77a and the inner wall on the inner peripheral side and the front end sides of the end portions 75a, 75b of the gasket 75 are overlapped with the washer retaining groove 76 at the end portions 75a to 75b at the enlarged groove portion 76a (enlarged The groove 7 6a) is accommodated in a state in which one of the extensions is accommodated, and the ends 75a and 75b of the gasket 75 are press-fitted and fixed between the inner wall of the gasket holding groove 76 and the pin, respectively. Thereby, the end portions 75a, 75b of the gasket 75 are in close contact with each other between the pins 77. The second covering member 7 1 configured as described above is a front surface of the recess -17-1351457 65 that is attached to the extended portion 53 of the first covering member 43 as shown in FIG. 2, and in the mounted state, the second The front surface of the covering member 71 is substantially flush with the frame portion 63. At this time, the second covering member 71 is engaged with the first covering member 43 by the engaging hook member 66 formed on the flange portion 64 and engaged with the engaging hole portion 74 formed in the peripheral wall portion 73. Further, in this mounted state, the gasket 75 is in close contact with the surface of the flange portion 64 and is hermetically sealed. As a result, as shown in Fig. 2 and the like, the second water-passing space 42 is formed by the second covering member 71 and the gasket 75 on the inner circumference of the concave portion 65 of the first covering member 43. The second water-passing space 42 is provided to extend upward while being inclined toward the inner peripheral side by the opening 59, and the discharge port 72 is disposed inside the balance ring 17. Further, the baffle removal water passage (not shown) is configured to be lower than the circulation water passage 19, and a batt filter is attached to the upper discharge port. Next, the effect on the above structure will be explained. At the time of washing (and washing), the agitating body 6 and thus the pumping blade 31 are rotated in the reverse direction. Then, by the rotation of the pumping vane 31, the washing liquid in the washing tank 5 is sent to the circulating water passage 19 from the outflow port 25 of the pumping chamber 20, passes through the first water passing space 41 of the circulating water passage 19, and passes through the opening portion. 59, further pumped to the second water passing space 42. Then, the washing liquid is discharged into the washing tank 5 by the discharge port 72 provided in the upper portion of the second water passing space 42, whereby the washing liquid is circulated. Therefore, it is possible to sprinkle the washing liquid onto the laundry from the high position of the circulating water passage 19, that is, the same height position as the balance ring 17, in the washing tank. In the case where the second water-passing space 42 is provided to be inclined upward by the opening portion 590 toward the inner peripheral side, the washing can be performed by the first -18 - 1351457 water-passing space 41 upward. The flow of the liquid changes direction toward the front. As a result, the washing liquid discharged from the discharge port 72 of the second covering member 71 is also inclined obliquely forward, and the washing liquid can be applied to the laundry located at a position far from the discharge port 72 in the tank 5, thereby improving the washing energy. . The first water passing space 41 constituting the circulating water passage 19 is provided between the inner surface side of the first member 43 and the inner peripheral surface of the main body portion 15 having a shape (flat curve) which is not stepped and has a flat shape. 45 is sealed in an encrypted manner, so that a high sealing property can be obtained. In addition, the second water-passing space 42 constituting the circulation 19 is sealed between the front surface of the first covering member 43 on the back surface of the second covering member 71, but the sealing surface of the first covering member 43 (the flange portion 64) The surface is flat without step, so that high sealing can be obtained. Therefore, as the circulating water passage 19, high sealing performance can be obtained. Further, since the first covering member 43 is extended, the second covering member 71 is disposed on the side of the portion, so that the second covering member ' is achieved by a smaller one. For each of the first covering member 43 and the second member 71, a simpler structure may be achieved, and the structure of the forming die becomes complicated. Further, since the sealing of the circulating water passage 19 is performed by the gasket 75, it is not necessary to use a means such as welding, and a structure such as engagement can be employed. Therefore, it is possible to achieve a simpler structure, and the assembly workability is also reduced. The first and the second members 43 and 71 of the circulating water passage 19 of the embodiment of the present invention do not need to be formed as a conventionally formed duct-shaped circumvention. The washing property is covered with water and water side and cover surface. The front surface of the whole body 71 can be covered and will not be installed well.
1351457 路之覆蓋構件的複雜的製程或設備，且因本實施托 體部15之內周壁部，構成循環水路19的背面部乏 形成爲所謂的雙層，所以，比起以往構成循環水腾 構件，可減低材料或減少洗衣槽的容積上之浪費。 因2條的墊圈44、45之上端部44b、45b彼出 圈保持槽58中的上部部分之擴大槽部58a，在重 墊圈保持槽58之延伸的方向的狀態下被收納著， 能夠做成優良水密狀態》又，墊圈75的端部75a 此也在墊圈保持槽76中的擴大槽部76a，重疊於 的狀態下被收納著，所以，能夠做成優良水密狀態 藉由在墊圈保持槽58、76設置銷60、74，能夠笔 圈44、45、75予以進行壓入固定。 第2覆蓋構件71在利用墊圈44、45(第1速 )之密封部分的外側，卡合固定於第1覆蓋構件 在循環水路1 9內未形成有卡合孔部74，所以，招 洗滌液不會由卡合孔部74漏出，能夠確保循環水j 水密性。 因第2覆蓋構件71爲可由洗衣槽5的內周俚 結構，所以，在除去聚集於循環水路19內之棉絮 況時’僅將第2覆蓋構件71由第1覆蓋構件43取 可進行維修，所以，容易進行作業。此時，因在第 構件43形成有缺口部67、67，所以，若將一字起 至此部分的話’即可容易取下第2覆蓋構件71。 因此’若根據本實施形態之洗衣機的話，爲在 態的主 壁並未 的覆蓋 是在墊 疊於該 所以， 75b彼 —方向 。又， 易將墊 封構件 43，因 抽出的 "9之 裝卸之 等的情 下，即 1覆蓋 子*** 洗衣槽 -20- 1351457 的側壁部，設有用來抽出洗滌水並由上方進行灑水的循環 水路者，能夠達到下述效果，即，將循環水路的吐出口設 置於高位置，卻具有優良的循環水路水密性，且能夠較簡 單、廉價的結構即可達成之效果。 再者，本發明不限於上述圖示之實施形態，例如可設 置1個或3個以上之循環水路。 亦能以1條墊圈來構成第1密封構件。又，亦可由無 端環狀的墊圈來構成第2密封構件。 除此以外，在不超出本發明的技術思想範圍內可進行 各種適宜變更加以實施者亦包含於本發明。 【圖式簡單說明】 圖1是顯示本發明的一實施形態者，爲洗衣槽的循環 水路部分之縱斷側面圖。 圖2是循環水路的上部部分之縱斷側面圖。 圖3是顯示洗衣機的全體結構之縱斷側面圖。 圖4是槽底部的平面圖。 圖5是取下了第1及第2覆蓋構件的狀態下之循環水 路的分解斜視圖。 圖6是第1覆蓋構件的上部部分之放大斜視圖。 圖7是第1覆蓋構件的背面圖。 圖8是第1覆蓋構件之上部部分的由背面側觀看的斜 視圖。 圖9是第2覆蓋構件的正面圖。 -21 - 1351457 圖1 〇是第2覆蓋構件的背面圖。 圖11是顯示第1密封構件的墊圈與第2密封構件的 墊圈、第2覆蓋構件的卡合孔部的位置關係之正面圖。 圖12是沿著圖2中的Α-Α線之橫斷平面圖。 圖13是沿著圖2中的Β-Β線之橫斷平面圖。 【主要元件符號說明】 1 :洗衣機 5 :洗衣槽 6 :攪拌體 15 :主體部 16 :槽底部 17 :平衡環 1 9 :循環水路 20 :泵浦室 2 5 :流出口 31 :泵浦葉片 4 1 :第1通水空間 42 :第2通水空間 43 :第1覆蓋構件 44、45 :墊圈（第1密封構件） 53 :延長部 58、76 :墊圈保持槽 5 9 :開口部 -22- 1351457 60、 71 ： 72 ： 75 ： 77 :銷 第2覆蓋構件 吐出口 墊圈（第2密封構件）In the complicated process or equipment of the cover member of the 1351457, and the inner peripheral wall portion of the body portion 15 of the present embodiment, the back surface portion constituting the circulating water passage 19 is formed as a so-called double layer, so that the circulating water evacuable member is formed as compared with the prior art. Can reduce material or reduce the waste of the tank. The enlarged groove portion 58a of the upper portion of the ring holding groove 58 in the upper end portions 44b and 45b of the two washers 44 and 45 is accommodated in a state in which the weight washer retaining groove 58 extends, and can be formed. In the watertight state, the end portion 75a of the gasket 75 is also accommodated in the state in which the enlarged groove portion 76a of the gasket holding groove 76 is overlapped. Therefore, it is possible to achieve an excellent watertight state by the gasket retaining groove 58. 76 is provided with pins 60 and 74, and the pen rings 44, 45, and 75 can be press-fitted and fixed. The second covering member 71 is engaged and fixed to the first covering member outside the sealing portion of the washers 44 and 45 (first speed), and the engaging hole portion 74 is not formed in the circulating water passage 19, so that the washing liquid is sucked. The leakage hole portion 74 is not leaked, and the watertightness of the circulating water can be ensured. Since the second covering member 71 is configured by the inner circumference of the washing tank 5, when the cotton wool collected in the circulating water passage 19 is removed, only the second covering member 71 can be taken out and repaired by the first covering member 43. Therefore, it is easy to carry out work. At this time, since the notch portions 67 and 67 are formed in the first member 43, the second covering member 71 can be easily removed if the character is lifted up to this portion. Therefore, if the washing machine according to the present embodiment is not covered by the main wall in the state, it is overlapped, so that the direction is 75b. Moreover, it is easy to insert the cover member 43 into the side wall portion of the washing tank -20-1351457 due to the unloading of the extracted "9, and the cover member is provided for extracting the washing water and sprinkling water from above. The recirculating waterway can achieve the effect that the discharge port of the circulating water passage is installed at a high position, but has excellent watertightness of the circulating water passage, and can be achieved by a simple and inexpensive structure. Furthermore, the present invention is not limited to the above-described embodiments, and for example, one or three or more circulating water passages may be provided. It is also possible to constitute the first sealing member by one gasket. Further, the second sealing member may be constituted by a gasket having an endless ring shape. In addition, various suitable modifications can be made without departing from the spirit of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal side view showing a portion of a circulation water passage of a washing tub, showing an embodiment of the present invention. Fig. 2 is a longitudinal side view of the upper portion of the circulation water passage. Fig. 3 is a longitudinal side view showing the entire structure of the washing machine. Figure 4 is a plan view of the bottom of the trough. Fig. 5 is an exploded perspective view of the circulation water circuit in a state where the first and second covering members are removed. Fig. 6 is an enlarged perspective view showing an upper portion of the first covering member. Fig. 7 is a rear view of the first covering member. Fig. 8 is a perspective view of the upper portion of the first covering member as viewed from the back side. Fig. 9 is a front elevational view of the second covering member. -21 - 1351457 Fig. 1 〇 is a rear view of the second covering member. Fig. 11 is a front elevational view showing the positional relationship between the gasket of the first sealing member, the gasket of the second sealing member, and the engagement hole portion of the second covering member. Figure 12 is a transverse plan view taken along line Α-Α of Figure 2; Figure 13 is a transverse plan view taken along line Β-Β of Figure 2; [Main component symbol description] 1 : Washing machine 5 : Laundry tank 6 : Stirring body 15 : Main body portion 16 : Slot bottom 17 : Balance ring 1 9 : Circulating water passage 20 : Pump chamber 2 5 : Outlet 31 : Pump blade 4 1 : 1st water-passing space 42 : 2nd water-passing space 43 : 1st cover member 44, 45: Washer (1st sealing member) 53: Extension part 58 and 76: Washer holding groove 5 9 : Opening part-22- 1351457 60, 71 : 72 : 75 : 77 : pin second cover member discharge port washer (second sealing member)
-23--twenty three-