201200088 六、發明說明： I：發明戶斤屬之技術領域3 發明領域 本發明係關於一種利用洗淨水洗淨餐具等之餐具清洗 機。 L先前技術]1 發明背景 以往，該類餐具清洗機係如第18圖之構成（參考例如專 利文獻1)。以下說明有關其構成。以往的餐具清洗機50具 有：餐具籃51、洗淨槽52、洗淨泵53、洗淨喷嘴54、塔形 喷嘴55及分水切換部56。於餐具籃51收納餐具類。餐具籃 51載置於洗淨槽52。洗淨泵53係向洗淨喷嘴54送出洗淨 水。洗淨喷嘴54具有複數個喷嘴孔。洗淨喷嘴54係一面旋 轉，一面往洗淨槽52内部喷射從複數個喷嘴孔壓送之洗淨 水。塔形喷嘴55係從洗淨喷嘴54之中央部，向上方延伸而 形成。於塔形喷嘴55設有固定喷嘴孔。又，分水切換部56 係切換從洗淨泵53送來之洗淨水，往洗淨喷嘴54側與塔形 喷嘴55側之送水。藉由分水切換部56，分割對洗淨喷嘴54 之送水與對塔形喷嘴55之送水。藉其，洗淨喷嘴54與塔形 喷嘴55可分別各自運轉。故，可抑制採用洗淨喷嘴54與塔 形喷嘴55之清洗行程所必需的水量。藉此，洗淨效率會提 升。 然而，於以往的餐具清洗機，塔形喷嘴55設置於洗淨 喷嘴之約略中央部，因此若僅以從塔形喷嘴55之噴射口所 201200088 喷射的洗淨水之喷射反仙力，塔形 轉。具體而言，從塔形噴嘴55之喷射口戶薄55不會充分旋 喷射反作用’係發生在從旋轉中心非常::::洗淨水之 發生的旋轉力矩亦小，噴嘴的旋轉不 2 ，因此所 J 故，為了令技形 喷嘴55充分旋轉，須喷射所必需以上之洗淨水。 [先行技術文獻] [專利文獻] [專利文獻1]日本特開2008-73U1號公報 t發明内容】 發明概要 本發明之餐具清洗機具有洗淨槽、洗淨泵、洗淨噴嘴 及塔形噴嘴。於洗淨槽收放被洗淨物。洗淨泵係加壓洗淨 水。洗淨喷嘴係旋轉自如地設置於洗淨槽内，並且對被洗 淨物，喷射由洗淨泵加壓之洗淨水。塔形噴嘴係於洗淨喷 嘴之約略中央部，往鉛直上方突出而設置’對被洗淨物， 喷射由洗淨泵加壓之洗淨水。洗淨喷嘴具有複數個流路、 及閥體。於複數個流路之各流路設有喷射口 °閥體係藉由 從洗淨泵供給之洗淨水之水壓變化，來切換對複數個流路 及塔形喷嘴之某一者之洗淨水供給。洗淨水從塔形喷嘴噴 射時，從洗淨喷嘴之複數個流路中之至少一個流路喷射洗 淨水，並且洗淨喷嘴旋轉。 藉此，以閥體一面切換設於洗淨喷嘴内之複數個流 路，一面在從具有與洗淨噴嘴之複數個流路中之至少一個 相連通的流路之塔形喷嘴噴射時’亦從洗淨喷嘴喷射洗淨 4 201200088 水。故，可一面令洗淨喷嘴本身旋轉，一面從洗淨喷嘴及 塔形噴嘴噴射洗淨水。藉此，可一面謀求省水，一面藉由 旋轉的塔形喷嘴確實洗淨被洗淨物。 圖式簡單說明 第1圖係本發明之實施形態1之餐具清洗機之剖面概略 圖。 第2圖係從上面觀看本發明之實施形態1之餐具清洗機 之洗淨喷嘴之部分剖面圖。 第3圖係本發明之實施形態1之餐具清洗機之洗淨喷嘴 之一部分及閥體之剖面圖。 第4圖係本發明之實施形態1之餐具清洗機之要部立體 圖。 第5圖係本發明之實施形態1之餐具清洗機之要部立體 圖。 第6圖係本發明之實施形態1之餐具清洗機之閥體之立 體圖。 第7圖係從上方觀看本發明之實施形態1之餐具清洗機 之閥體之俯視圖。 第8圖係從下方觀看本發明之實施形態1之餐具清洗機 之閥體之俯視圖。 第9圖係本發明之實施形態1之餐具清洗機之閥體附近 之部分剖面圖。 第10圖係本發明之實施形態1之餐具清洗機之閥體關 閉第2洗淨流路入口時之俯視圖。 201200088 第11圖係本發明之實施形態2之餐具清洗機之洗淨流 路及塔形喷嘴流路入口之俯視圖。 第12圖係本發明之實施形態2之餐具清洗機之洗淨喷 嘴之一部分及閥體之剖面圖。 第13圖係本發明之實施形態2之餐具清洗機之閥體抵 接於洗淨喷嘴流路入口及塔形喷嘴流路之狀態之俯視圖。 第14圖係從塔形喷嘴側觀看第13圖之俯視圖之剖面 圖。 第15圖係本發明之實施形態2之餐具清洗機之洗淨喷 嘴及塔形喷嘴之剖面圖。 第16圖係從上方觀看本發明之實施形態2之餐具清洗 機之塔形喷嘴之剖面圖。 第17圖係從本發明之實施形態2之餐具清洗機之洗淨 喷嘴上方觀看之俯視圖。 第18圖係以往的餐具清洗機之部分切口立體圖。 L實施方式3 用以實施發明之形態 以下，一面參考圖式，一面說明關於本發明之實施形 態。再者，本發明並不受到本實施形態限定。 (實施形態1) 第1圖係本發明之實施形態1之餐具清洗機之剖面概略 圖。第2圖係從上面觀看本發明之實施形態1之餐具清洗機 之洗淨喷嘴之部分剖面圖。第3圖係本發明之實施形態1之 餐具清洗機之洗淨喷嘴之一部分及閥體之剖面圖。第4圖係 201200088 本發明之實施形態1之餐具清洗機之要部立體圖。第5圖係 實施形態1之餐具清洗機之要部立體圖。第6圖係實施形態1 之餐具清洗機之閥體之立體圖。第7圖係實施形態1之餐具 清洗機之閥體之上面圖。第8圖係實施形態1之餐具清洗機 之閥體之下面圖。第9圖係實施形態1之餐具清洗之閥體附 近之部分剖面圖。第10圖係實施形態1之餐具清洗機之閥體 關閉第2洗淨流路入口時之俯視圖。 於第1圖中，餐具清洗機具有：主體1、洗淨槽2、餐具 籃4、給水部5、洗淨泵6、洗淨喷嘴7、排水口 8、排水濾網 9、殘渣濾網1〇、加熱部11 '溫度感測器12、旋轉軸承13及 控制部200。於主體1設有洗淨槽2，係具有能夠以門（未圖 示）來開閉之開口部(未圖示）。於洗淨槽2收放有餐具籃4。 餐具等被洗淨物3係由使用者從開口部，放置於餐具籃4而 收放於洗淨槽2内。給水部5係由控制部200所控制，對洗淨 槽2内供給自來水作為洗淨水。洗淨泵6係加壓由給水部5給 水、累積於洗淨槽2内之洗淨水，並供給至洗淨噴嘴7。 洗淨喷嘴7具備喷嘴部1〇〇及旋轉軸14，於各者之内部 設有流路。噴嘴部1〇〇係以旋轉軸14為中心，對於旋轉軸14 往垂直方向，呈直線且水平地延伸設置於兩側。進而言之， 於喷嘴部100之内部’設有從旋轉軸14側向前端並排地延 伸、呈對稱之複數個流路。然後，洗淨喷嘴7係對洗淨槽2 内，喷射從洗淨泵6供給之受到加壓之洗淨水。從洗淨嗔嘴 7喷射之洗淨水係用以洗淨被洗淨物3之洗滌劑液、亦或為 用以沖洗被洗淨物3之沖洗水。 201200088 排水口 8設於洗淨槽2内之底部，與洗淨泵6之吸入側相 連通。排水濾網9及殘渣濾網1〇設於排水口 8内，收集洗淨 水所含之殘渣。殘渣濾網10設於排水濾網9之上方。殘渣濾 網10係網孔細於排水濾網9，並拆裝自如地形成，可取下以 丢棄所收集的殘渣。加熱部1]設於洗淨槽2内之底部，加熱 累積於洗淨槽2内之洗淨水及洗淨槽2内之乾燥用空氣。溫 度感測器12設於洗淨槽2之底面外壁，檢測洗淨槽2之溫 度。旋轉軸承13係從洗淨槽2之底部往上方突出形成之中空 筒，固定於洗淨槽2之内部。於旋轉軸承13嵌合有洗淨噴嘴 7之旋轉軸14，旋轉自如地支撐旋轉軸14。 塔形喷嘴39係於洗淨噴嘴7之約略中央部，往鉛直上方 大出設置。於塔形喷嘴39上方側之前端附近，設有喷射洗 淨水之塔形喷嘴喷射口 40。 如第2圖所示，於洗淨喷嘴7之内部，以旋轉軸14為中 %呈點對稱地形成有複數個流路。具體而言，複數個流路 為第1洗淨喷嘴流路15及第2洗淨喷嘴流路16。第1及第2洗 ’爭噴嘴流路15、16均以旋轉軸14為中心，對於旋轉軸往垂 直方向，呈直線且水平地延伸設置於兩側。於洗淨噴嘴7， 形成由約略十字狀之肋部11〇所隔開的第丨洗淨喷嘴流路入 17及第2洗淨喷嘴流路入口 18。旋轉軸14之流路係經由第 1洗净噴嘴流路入口 17而與第丨洗淨喷嘴流路15相連通。同 樣地，旋轉軸14之流路係經由第2洗淨喷嘴流路入口 而與 第2洗淨噴嘴流路16相連通。第丨洗淨喷嘴流路15具有複數 個第1噴射口 19❶第2洗淨喷嘴流路16具有複數個第2喷射口 201200088 20。第1喷射口 19係於第1洗淨喷嘴流路15，約略呈一排而 設有複數個。同樣地，第2噴射口 20係於第2洗淨喷嘴流路 16，約略呈一排而設有複數個。 第1洗淨喷嘴流路入口 17及第2洗淨喷嘴流路入口 is係 由約略十子狀之肋部11 〇所區隔、中心角約略9〇度之扇狀開 口部。總言之，藉由交替排列第1洗淨喷嘴流路入口 17與第 2洗淨喷嘴流路入口 18來形成如第2圖所示之約略圓形之開 口部。第1洗淨喷嘴流路入口 17及第2洗淨噴嘴流路入口 18 分別對於洗淨喷嘴7之中心，呈點對稱地各設有兩處。 如第3圖所示，塔形喷嘴39具有塔形喷嘴流路21，係與 第1洗淨噴嘴流路15與第2洗淨噴嘴流路16中至少某一方相 連通者。於本實施形態，採第1洗淨噴嘴流路15與第2洗淨 噴嘴流路16相連通的情況來說明。第1洗淨喷嘴流路15係從 第1洗淨喷嘴流路入口 17往塔形噴嘴流路21分支。另，塔形 喷嘴流路21未與第2洗淨喷嘴流路16相連通。 如第3圖及第4圖所示，旋轉軸14係於内壁下部具有旋 轉軸側扣合部30。旋轉軸側扣合部30形成為螺旋狀，具有 往單一方向傾斜之複數個傾斜面3〇A、及複數個將傾斜面 30A彼此予以相連之梯部3〇b。旋轉軸14之軸開口部26係與 洗淨豕6之噴出側相連通，洗淨泵6藉由馬達而旋轉，藉此 經由軸開口部26而連續供給洗淨水。於旋轉軸14内，設有 切換對洗淨喷嘴7及塔形喷嘴之洗淨水供給之閥體23，與旋 轉軸14 一同旋轉。 如第6圖〜第8圖所示，閥體23具有：開口部24，係中 201200088 心角約略為直角之扇狀切口部；及閉口部25，係具有中心 角同樣約略為直角之扇狀平端部。設於旋轉軸14内之閥體 23具有中空圓筒部32 ’係於旋轉中心往下方突出者。開口 部24及閉口部25分別以中空圓筒部32為中心，呈對角設有2 個。閉口部24及閉口部25分別約略以中空圓筒部32為中 心，中心角約略90度之扇形呈點對稱地形成有2個。於閉口 部25之中空圓筒部32側（旋轉中心側）上面，形成有山形之上 面扣合部28。於閉口部25之外周緣附近之下面，形成有下 端側表面傾斜之下面扣合部29。 又’如第9圖所示，於洗淨喷嘴7之洗淨流路入口側（第 9圖之下方側）’往下方突出而形成支撐軸31。中空圓筒部 32配置為支撐軸31可插入。藉此，閥體23上升於第3圖所示 之旋轉軸14内時，支撐軸31成為閥體23之上升動作之導引 部。支撲軸31亦可由剖面為十字之肋部來構成。藉由以十 予狀之肋部來構成’與中空圆筒部32之間出現空間，容易 將流入之異物往中空圓筒部32外排出。 就上述構成來說明關於餐具清洗機之基本動作。使用 者係從主體1之開口部，將餐具等被洗淨物3放置於餐具籃 4，於洗淨槽2收納被洗淨物3。接著，使用者放入預定量之 洗滌劑後，藉由關閉門而閉塞主體丨之開口部，開始運轉。 —般運轉係依如下順序執行：清洗行程，係洗掉被洗淨物3 之髒污者；一般沖洗行程，係沖去附著於被洗淨物3之洗滌 劑或殘渣者；加熱沖洗行程，係以藉由加熱部lu〇熱之洗 淨水，沖去附著於被洗淨物3之洗滌劑或殘渣者；以及乾燥 201200088 行程，係令附著於被洗淨物3之水滴乾燥者。 首先，說明關於清洗行程。控制部200令給水部5動作， 對洗淨槽2内供給預定量之洗淨水。接下來，洗淨泵6加壓 洗淨水，洗淨喷嘴7或塔形喷嘴39喷射洗淨水。此時，設於 洗淨槽2内之電熱管加熱器等加熱部11被通電，一面加熱洗 淨水一面進行清洗行程。當溫度感測器12感測到洗淨水為 預定溫度以上時，控制部200停止對加熱部11通電。該清洗 行程係進行預定時間。 接著，說明沖洗行程。當結束預定時間之清洗行程時， 含髒污之洗淨水排出至主體1外。然後，控制部200係重新 藉由給水部5，對洗淨槽2内供給洗淨水。控制部200進而運 轉洗淨泵6，從洗淨喷嘴7或塔形喷嘴39再次喷射洗淨水， 進行洗滌劑或殘渣等所附著的被洗淨物3之沖洗。沖洗進行 預定時間後，控制部200係排出洗淨水，重複再次供給洗淨 水而進行沖洗的動作。該一般沖洗行程係連續進行2次左 右。 接著，控制部200係利用由加熱部11加熱之洗淨水，來 進行沖洗被洗淨物3之加熱沖洗行程。 最後，控制部200係將洗淨水排出至主體1外，進行乾 燥行程而結束運轉；前述乾燥行程係以預定時間，由乾燥 部（未圖示）進行乾燥。 再者，於清洗行程、一般沖洗行程、加熱沖洗行程等， 洗淨水係如下循環。具體而言，洗淨槽2内之洗淨水係通過 排水濾網9及殘渣濾網10，並被吸入設在循環路徑（未圖示） 11 201200088 之洗淨泵6。接下來，洗淨泵6力α壓洗淨水，對設在洗淨槽2 内之底部之洗淨喷嘴7及塔形喷嘴39供給洗淨水。從洗淨泵 6供給之洗淨水係從旋轉軸14之軸開口部26,流入旋轉軸14 内。流入旋轉軸14内之洗淨水係從洗淨喷嘴流路入口 17、 18流入洗淨喷嘴流路15、16及塔形喷嘴流路21，並從喷射 口 19、20及塔形喷嘴喷射口 40喷射至洗淨槽内。 接著，詳細說明關於從洗淨喷嘴7及塔形喷嘴39喷射洗 淨水之動作。當洗淨水流入旋轉軸14内時，閥體23係於閉 口部25之下面，從洗淨水承受大於閥體23本身重量之水 壓，於旋轉軸14内上升，於上升中途，閥體23本身開始旋 轉運動。當閥體23於旋轉軸14内結束上升時，第1洗淨喷嘴 流路入口 17與閥體23之開口部24—致。總言之，旋轉軸14 與第1洗淨喷嘴流路15及塔形喷嘴流路21相連通。與其同 時，第2洗淨喷嘴流路入口 18係由閥體23之閉口部25所閉 塞。如此一來，從第1洗淨喷嘴流路入口 17流入之洗淨水係 通過第1洗淨喷嘴流路15，從第1喷射口 19對被洗淨物3喷 射。隨此，洗淨喷嘴7會與塔形喷嘴39 —同旋轉。同時，從 第1洗淨喷嘴流路入口 17流入之洗淨水係通過塔形喷嘴流 路21而從塔形喷嘴喷射口 40喷射。塔形喷嘴39係對於配置 於餐具籃4之上層之被洗淨物3，從下方喷射洗淨水。又， 對於配置於餐具籃4之下層之被洗淨物3，從上方喷射洗淨 水。如此洗淨被洗淨物3。 當預定喷射時間結束時，控制部200係令洗淨泵6停 止。如此一來，閥體23未於閉口部25承受大於本身重量之 12 201200088 水壓，因此於旋轉軸14内下降。然後，閥體23係在與旋轉 軸14之旋轉軸側扣合部30扣合時停止下降。閥體23係在與 旋轉軸側扣合部30扣合時，與洗淨喷嘴7同步運轉。於預定 時間後，控制部200再次驅動洗淨泵6。藉此，洗淨水再次 流入旋轉軸14内，閥體23開始上升。此時，閥體23之開口 部24係與第2洗淨喷嘴流路入口 18—致，第2洗淨喷嘴流路 入口 18開口。從第2洗淨喷嘴流路入口 18流入並通過第2洗 淨喷嘴流路16之洗淨水係從第2喷射口 20，向被洗淨物3喷 出。此時，由於塔形喷嘴流路21與第1洗淨喷嘴流路15不相 連通，因此從塔形喷嘴喷射口 40未喷射洗淨水。控制部200 係以預定時間重複該類藉由閥體2 3所進行的洗淨流路切換 動作。 進一步詳細說明關於閥體23藉由一次進退動作，確實 切換流路之構成。如第6圖及第7圖所示，閥體23之閉口部 25大致呈平面形狀。如第9圖及第10圖所示，構成第1洗淨 喷嘴流路入口 17及第2洗淨喷嘴流路入口 18之喷嘴部100之 下面側（面A)，亦呈平面形狀。令洗淨泵6運轉時，閥體23 係於閉口部25，承受從旋轉軸14之軸開口部26流入之洗淨 水之水壓而開始於旋轉軸14内上升。然後，第6圖所示之上 面扣合部28之傾斜部分滑動於洗淨喷嘴7之十字狀之肋部 110，閥體23—面旋轉一面約略往鉛直上方上升。然後，如 第5圖所示，閥體23之閉口部25係與第2洗淨喷嘴流路入口 18相對向而閉塞，開口部24係與第1洗淨噴嘴流路入口 17相 對向而開成。 13 201200088 其後，洗淨泵6以預定時間繼續運轉，閥體21固定於第 1洗淨喷嘴流路入口 17開口的位置。此期間，對與第1洗淨 喷嘴流路入口 17相連通之第1洗淨喷嘴流路15及塔形喷嘴 流路21，供給洗淨水。此時，閥體23係與洗淨喷嘴7—同旋 轉。 如第5圖所示，於閥體23，開口部24係以與預定之洗淨 流路入口 一致之方式設有上面扣合部28。如第6圖所示，上 面扣合部8係成為往旋轉方向傾斜之形狀。閥體23係一面上 升，上面扣合部28之傾斜部分一面於隔牆滑動，藉此僅旋 轉第1角度(例如45度）。接下來，當洗淨泵6暫時停止時，由 於從下方推升閥體23之水壓不發揮作用，因此閥體23因其 本身重量而下降。此時，下面扣合部29係沿著第4圖所示設 於旋轉軸14之旋轉軸側扣合部30之傾斜面30A滑動。閥體23 之下面扣合部29與階梯部30B抵接時，閥體23會停止。如 此，閥體23係於下降於旋轉軸14内時，僅旋轉第2預定角度 (例如45度）。 當再次運轉洗淨泵6時，閥體23—面旋轉於旋轉軸14内 一面上升，以使得與先前不同側之洗淨流路入口開口。具 體而言，閥體23之閉口部25係與第1洗淨噴嘴流路入口 17相 對向而閉塞，開口部24係與第2洗淨喷嘴流路入口 18相對向 而開成。如此，藉由間斷地運轉洗淨泵6，可依次切換洗淨 水所流過的洗淨喷嘴流路入口 17、18。 總言之，閥體23係藉由進行旋轉軸14内之進退動作， 亦即進行1次上下的來回運動而轉動90度。亦即，僅旋轉將 14 201200088 開口之洗淨流路入口切換之份量。然後’藉由閥體23進行4 次上下之來回運動而回到原位。因此’由於無須以馬達等 致動器來切換閥體23。故’於旋轉軸14之流路内’除間體 23以外並無妨礙洗淨水水流之物，進而洗淨喷嘴7與閥體23 可一同旋轉。 如上述，本實施形態之餐具清洗機係一面以閥體23切 換設於洗淨喷嘴7内之複數個流路’一面喷射洗淨水’在從 塔形喷嘴39喷射洗淨水時’始終亦從洗淨喷嘴7向餐具噴射 洗淨水。藉此，一面維持洗淨喷嘴7旋轉’一面抑制從洗淨 喷嘴7喷射之水量，可藉由來自塔形喷嘴39之複數個噴射口 之喷流來提高洗淨性能。 再者，宜使得塔形喷嘴喷射口 40之總開口面積，大於 相連通之洗淨喷嘴7之洗淨喷嘴流路(於本實施形態為第i 洗淨喷嘴流路15)之噴射口之總開口面積而構成。藉此，由 於在塔形喷嘴39之塔形喷嘴喷射口 40之壓力損失會減少， 因此可增加來自塔形喷嘴39之洗淨水噴射量。從未與塔形 喷嘴39相連通之洗淨噴嘴7之塔形喷嘴流路(於本實施形熊 為第2洗淨噴嘴流路16)喷射洗淨水之期間，從塔形噴嘴39 不喷射洗淨水，但藉由如上述增加從塔形噴嘴39噴射洗爭 水之期間之噴射量，來提升總體的洗淨力。由於以塔形噴 嘴39洗淨餐具等被洗淨物，並且於洗淨喷嘴7設置許多喷射 口，因此洗淨性能提升。 、 再者’由閥體23所進行的流路切換，係針對以洗淨果6 之驅動停止動作所進行_子來說明 ，但亦可藉由變化先 15 201200088 淨泵6之旋轉數來變化洗淨水之水壓而進行。 再者，於本實施形態，說明關於塔形喷嘴流路21與第1 洗淨喷嘴流路15相連通之形態，但兩流路以隔牆相互隔開 之構成亦無妨。此時，令第1洗淨喷嘴流路入口 Π，分割為 塔形喷嘴流路21用之入口與第1洗淨喷嘴流路15用之入口 而形成，從塔形喷嘴39喷射洗淨水時，同時亦從第1洗淨喷 嘴流路15喷射。該類構成亦可獲得與本實施形態同樣的作 用及效果。又，塔形喷嘴流路21與第1洗淨喷嘴流路15及第 2洗淨喷嘴流路16雙方均相連通的構成，亦可獲得同樣效 果。 (實施形態2) 第11圖係本發明之實施形態2之餐具清洗機之洗淨流 路入口及塔形喷嘴流路入口 22之俯視圖。第12圖係本發明 之實施形態2之餐具清洗機之洗淨喷嘴7之一部分及閥體23 之剖面圖。第13圖係本發明之實施形態2之餐具清洗機之閥 體23抵接於洗淨喷嘴流路入口及塔形喷嘴流路之狀態之俯 視圖。第14圖係從塔形喷嘴39側觀看第13圖之俯視圖之剖 面圖。第15圖係本發明之實施形態2之餐具清洗機之洗淨喷 嘴7及塔形喷嘴39之剖面圖。第16圖係從上方觀看本發明之 實施形態2之餐具清洗機之塔形喷嘴39之剖面圖。 如第11圖、第15圖所示，塔形喷嘴39具有分別形成有 喷射口 37、38之第1塔形喷嘴流路33及第2塔形喷嘴流路 34。第1塔形喷嘴流路33係與第1塔形喷嘴流路入口 35相連 通，並且亦與第1洗淨喷嘴流路入口 17相連通。又，第1塔 16 201200088 形喷嘴流路33與第1洗淨喷嘴流路15亦相連通。故，對第1 塔形噴嘴流路33及第1洗淨喷嘴流路15，以相同時序供給洗 淨水。同樣地，第2塔形喷嘴流路34係與第2塔形喷嘴流路 入口 36相連通，並且亦與第2洗淨喷嘴流路入口 18相連通。 又’第2塔形噴嘴流路34與第2洗淨喷嘴流路16亦相連通。 故，對第2塔形喷嘴流路34及第2洗淨噴嘴流路16，以相同 時序供給洗淨水。 如第U圖所示，第1洗淨喷嘴流路入口 17與第2洗淨喷 嘴流路入口 18係由約略十字狀之肋部120相互隔開，設於洗 淨喷嘴7。同樣地，第1塔形喷嘴流路入口 35與第2塔形喷嘴 流路入口 36亦由約略十字狀之肋部120相互隔開，設於洗淨 喷嘴7。第1塔形喷嘴流路入口 35及第2塔形噴嘴流路入口 36 分別設有兩處，對於肋部120之中心呈點對稱地各設有1 處。第1塔形喷嘴流路入口 35及第2塔形喷嘴流路入口 36， 係將中心角約略為直角、下切出扇形前端部之形狀。第1塔 形喷嘴流路入口 35及第2塔形喷嘴流路入口 36分別設有兩 處’對於肋部120之中心呈點對稱地各設有1處。第1塔形喷 嘴流路入口 35及第2塔形喷嘴流路入口 36，係將中心角約略 為直角、下切出扇形前端部之形狀。對於肋部120之中心， 於第1塔形噴嘴流路入口 35之外周側設有第1洗淨喷嘴流路 入口 17。同樣地，對於肋部120之中心，於第2塔形喷嘴流 路入口 36之外周側設有第2洗淨喷嘴流路入口 18。再者，於 本貫施形態，各自形成洗淨噴嘴流路入口與塔形喷嘴流路 入口，但亦可將洗淨噴嘴流路入口 17、18與塔形喷嘴流路 17 201200088 入口 35、36形成作1個入口，洗淨嘴嘴流路入口與塔形喷嘴 流路入口在洗淨噴嘴7_連通而構成^他構成則與實施 形態1相同。 以下說明本實施形態之洗淨噴嘴7及塔形喷嘴39之動 作。基本動作係與實施形態】相同。藉由控制部2〇〇控制洗 淨系6之驅動及停止等，控制_23之動作4其切換流 路，當開口部24與第1洗淨喷嘴流路入口 17—致時洗淨水 流入第1洗淨喷嘴流路I5及與其相連通之第丨塔形喷嘴流路 33 ’從第i喷射口 B及第说形喷嘴喷射口 η喷射。於預定 時間之動作後’控制部200停止洗淨泵6之驅動，其後再次 驅動洗淨系6。藉此控制閥體23之動作，切換流路。缺後， 當開口部24與第2洗淨噴嘴流以心—致時，洗淨水流入 第2洗淨噴嘴流路丨6及與其相連通之第2塔形喷嘴流路34， 從第2噴射口 20及第2塔形喷嘴噴射㈣噴射。如此，本實 施形態之餐具清洗機即便於任—洗淨流路人口開口的狀態 下，均可始終從塔形噴嘴39喷射洗淨水。&，洗淨性進一 步提升。 又，如第13圖所示，第1塔形噴嘴流路入口 35及第2塔 形喷嘴流路人口 36係於藉由閥體23所進行的流_換_ 側’亦即將 未由閥體23之閉π部25所閉塞的塔形噴嘴流路之入口的— 部分予以閉口。 第Μ圖縣示從第Η先淨喷嘴流路入口17與第冰形喷 嘴流路入口35，對洗淨噴嘴7供給洗淨水的情況。閥體_ 201200088 塞弟2洗淨喷嘴流路入口 18及第2塔形喷嘴流路入口 ％。此 時’閥體23之一部分係將第1塔形喷嘴流路入口 35之一部分 予以閉口（圖中之B部）。於此狀態下運轉預定時間後，控制 部200係為了切換流路而停止洗淨泵6，或降低洗淨泵6之馬 達旋轉數，減少施加於閥體23之水壓，令閥體23從各流路 入口遠離而下降。屆時，供給至塔形喷嘴流路33、34之洗 淨水流往開口之第1塔形噴嘴流路入口 35側。然後，將第i 塔形喷嘴流路入口 35之一部分閉口之閥體23之平面B部，係 從洗淨水承受往下方之施力。因此，閥體23往下方動作時， 來自塔形喷嘴流路之洗淨水倒流至未由閥體23之閉口部25 所閉塞側之塔形噴嘴流路之入口。總言之，此時，由於往 下方落下之洗淨水之施力，閥體23會較早下降。因此，可 違成閥體23之輕量化、小型化，閥體23之切換可靠性亦提 升。又，可將切換時之時間損失維持在最小限度。 又，如第4圖、第5圖所示，閥體23具有螺旋狀之下面 扣合部29，係對於旋轉軸14之旋轉轴側扣合部％，往相同 方向約目同肖度傾斜者。間體Μ與洗淨水之水壓相連 動而下降時’ ||&職至流路、亦即往下方落下之洗 淨水之施力’ _23之下面扣合物與旋轉_扣合部30 擦動，同時旋轉落下用之旋轉力矩變大…與旋轉軸側 扣合部30擦動之下面扣合部29之擦動面係藉由將端面之r 形狀大致取定與下面扣合部Μ之厚壁相同大小等，極力縮 小與旋轉軸姊合卿之接觸面積1便旋轉力矩進一步 文大 藉由使付閥體23之下面扣合部29之内徑及旋轉 19 201200088 軸側扣合部30之内徑，與軸開口部26之内徑大致相同，來 縮短從閥體23之旋轉中心之距離，旋轉力矩變大。因此， 洗淨喷嘴7亦變得小型，並且亦可令洗淨性能提升。又，可 將切換時之時間損失維持在最小限度。 如第15圖所示’喷射口37、38宜分別設在不同高度。 藉此’可改變喷射洗淨水的位置，可更大範圍地洗淨。 又，如第〗5圖所示，宜以各自之總開口面積不同的方 式’形成設於第1塔形喷嘴流路33之第1塔形喷嘴喷射口 37、及射於第2塔形喷嘴流路34之第2塔形喷嘴喷射口 38。 具體而言’喷射口之總開口面積較大侧之洗淨喷嘴流路、 且同時為洗淨水噴射側之塔形喷嘴流路之噴射口之總開口 面積’宜形成小於喷射口之總開口面積較小側之洗淨喷嘴 流路、且同時為洗淨水喷射側之塔形喷嘴流路之喷射口之 總開口面積。例如第1喷射口】9之總開口面積形成小於第2 喷射口 20之總開口面積時，使得第2塔形喷嘴喷射口 38之總 開口面積小於第1塔形噴嘴喷射口 37之總開口面積。此時， 各流路之噴射口之總開口面積，例如第丨塔形噴嘴喷射口 37 之開口面積與第1噴射口 19之總開口面積’及第2塔形噴嘴 喷射口 38之開口面積與第2喷射口 20之總開口面積，更宜形 成為相同。藉此，流路之最終開口部之面積在2個流路可為 相同。故，一面將利用洗淨泵6所循環的流量維持在一定， ~面切換流路’藉此可對於餐具等被洗淨物3進行各種清洗 方式’諸如以壓力大的喷流清洗，亦或以壓力低但流量多 的噴流清洗。因此’可提升洗淨效率及洗淨性能。 20 201200088 第16圖所示，亦可於塔形噴嘴39之内部設置4個 流路而構成。❹卩，塔形喷嘴39之内部㈣面十字狀之隔 心42刀割為4個。然後，對於隔牆42之中心，亦即對於塔形 噴备之中‘^位於一組點對稱之2個流路，設為第1塔形喷 嘴抓路33，位於另一組點對稱之2個流路，設為第2塔形喷 嘴抓路34。然後，宜構成如藉由切換閥體23，從2個塔形喷 嘴流路33同時噴射洗淨水，從2個塔形喷嘴流路34噴射洗淨 水。然後’同時噴射洗淨水之塔形噴嘴流路33及34各自之 喷射口’宜對於塔形喷嘴39之中心設在點對稱的位置。在 此，塔形噴嘴39之喷射口 37、38主要為了洗淨設置於餐異 籃4之餐具等被洗淨物，而設於塔形喷嘴39之前端附近，办 即設於上方。藉由從塔形噴嘴39之喷射口所喷射的噴流， 洗淨噴嘴7承受噴射之反作用力。尤其設於塔形喷嘴39之噴 射口 37、38係由於設於從洗淨噴嘴7下面遠離之距離因此 容易傾斜。如第16圖所示，同時噴射之噴射口對於塔形噴 嘴39之中心呈點對稱而設置，藉此令噴射自塔形嘴嘴％之 洗淨水所造成的噴射反作用力之作用方向相對向，可容易 令洗淨噴嘴7及塔形噴嘴取得平衡地旋轉。因此，洗淨喷嘴 7穩定旋轉，可靠性提升，並且洗淨性能亦提升。 又，如第17圖所示，宜以從塔形喷嘴39之嘴射口^、 38所喷射的洗淨水、與從洗淨喷嘴7之喷射口 19、所喷射 的洗淨水不會衝突的方式，來配置塔形噴嘴39之喷射口 37、38與洗淨喷嘴7之喷射口 19、2()。說明採用該構成之動 作。閥體23切換洗淨噴嘴7内之流路，從第丨噴射口 Η與第j 21 201200088 塔形喷嘴喷射口 37同時喷射洗淨水(實線箭頭）。於預定時間 後，閥體23切換流路，從第2喷射口 20與第2塔形喷嘴喷射 口 38同時喷射洗淨水(虛線箭頭）。於運轉預定時間後，閥體 23再次切換為連通至第1喷射口 19及第1塔形喷嘴喷射口 37 之洗淨流路。將該切換重複進行預定時間。此時，從喷射 口喷射之洗淨水分別於喷射後交叉而不衝突，對於設在洗 淨槽2之餐具等被洗淨物3大範圍且分布均勻地供給。因 此，清洗遺漏變少，藉此可謀求洗淨性能提升。 又，製成洗淨喷嘴7藉由流路切換而倒轉之構成亦可。 洗淨喷嘴7係利用來自噴射口之喷流之反作用力而旋轉，因 此喷射口的角度整體上設在與洗淨喷嘴7之旋轉方向相反 的方向。 再者，本發明係關於餐具清洗機之洗淨方式，不限定 主體1之形狀或大小、餐具配置、各個零件之配置等。 產業上之可利用性 如以上，由於本發明之餐具清洗機可藉由切換洗淨流 路，從許多喷射口喷射洗淨水，可提高洗淨性能，因此作 為餐具清洗機甚為有用。 進而言之，可大範圍且高密度地對洗淨槽全體之被洗 淨物，均勻地喷射洗淨水，被洗淨物之放置性亦可提升。 【圖式簡單說明3 第1圖係本發明之實施形態1之餐具清洗機之剖面概略 圖。 第2圖係從上面觀看本發明之實施形態1之餐具清洗機 22 201200088 之洗淨喷嘴之部分剖面圖。 第3圖係本發明之實施形態1之餐具清洗機之洗淨喷嘴 之一部分及閥體之剖面圖。 第4圖係本發明之實施形態1之餐具清洗機之要部立體 圖。 第5圖係本發明之實施形態1之餐具清洗機之要部立體 圖。 第6圖係本發明之實施形態1之餐具清洗機之閥體之立 體圖。 第7圖係從上方觀看本發明之實施形態1之餐具清洗機 之閥體之俯視圖。 第8圖係從下方觀看本發明之實施形態1之餐具清洗機 之閥體之俯視圖。 第9圖係本發明之實施形態1之餐具清洗機之閥體附近 之部分剖面圖。 第10圖係本發明之實施形態1之餐具清洗機之閥體關 閉第2洗淨流路入口時之俯視圖。 第11圖係本發明之實施形態2之餐具清洗機之洗淨流 路及塔形喷嘴流路入口之俯視圖。 第12圖係本發明之實施形態2之餐具清洗機之洗淨喷 嘴之一部分及閥體之剖面圖。 第13圖係本發明之實施形態2之餐具清洗機之閥體抵 接於洗淨喷嘴流路入口及塔形喷嘴流路之狀態之俯視圖。 第14圖係從塔形喷嘴側觀看第13圖之俯視圖之剖面 23 201200088 圖。 第15圖係本發明之實施形態2之餐具清洗機之洗淨喷 嘴及塔形喷嘴之剖面圖。 第16圖係從上方觀看本發明之實施形態2之餐具清洗 機之塔形喷嘴之剖面圖。 第17圖係從本發明之實施形態2之餐具清洗機之洗淨 喷嘴上方觀看之俯視圖。 第18圖係以往的餐具清洗機之部分切口立體圖。 【主要元件符號說明】 1…主體 16...第2洗淨喷嘴流路 2、52...洗淨槽 17...第1洗淨喷嘴流路入口 3...被洗淨物 18...第2洗淨喷嘴流路入口 4、51...餐具籃 19…第1喷射口 5...給水部 20...第2喷射口 6、53...洗淨泵 21...塔形喷嘴流路 7、54…洗淨喷嘴 22…塔形喷嘴流路入口 8...排水口 23…閥體 9...排水濾網 24...開口部 10…殘渣濾網 25...閉口部 11...加熱部 26…軸開口部 12...溫度感測器 28____L面扣合部 13...旋轉軸承 29...下面扣合部 14...旋轉軸 30...旋轉軸側扣合部 15...第1洗淨喷嘴流路 30A...傾斜面 24 201200088 30B...梯部 42.· 31...支撐軸 50.. 32...中空圓筒部 53·. 33...第1塔形喷嘴流路 54.. 34...第2塔形喷嘴流路 55.. 35...第1塔形喷嘴流路入口 56.. 36...第2塔形噴嘴流路入口 100 37、38...喷射口 110 39...塔形喷嘴 200 40...塔形喷嘴喷射口 .隔牆 .餐具清洗機 •洗淨泵 •洗淨喷嘴 .塔形喷嘴 .分水切換部 ..喷嘴部 、120...肋部 ..控制部 25201200088 VI. Description of the invention: I: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishes and the like with washing water. L Prior Art] 1 Background of the Invention This type of dishwasher is constructed as shown in Fig. 18 (refer to, for example, Patent Document 1). The following description is about its composition. The conventional dishwasher 50 has: Cutlery basket 51, Washing tank 52, Washing pump 53, Washing nozzle 54, The tower-shaped nozzle 55 and the water-dividing switching portion 56. The tableware basket 51 accommodates tableware. The cutlery basket 51 is placed in the washing tank 52. The washing pump 53 sends the washing water to the washing nozzle 54. The cleaning nozzle 54 has a plurality of nozzle holes. The washing nozzle 54 is rotated on one side. The washing water pumped from the plurality of nozzle holes is sprayed into the inside of the washing tank 52. The tower-shaped nozzle 55 is from the central portion of the washing nozzle 54. It is formed by extending upward. The tower nozzle 55 is provided with a fixed nozzle hole. also, The water dividing switch unit 56 switches the washing water sent from the washing pump 53. The water is supplied to the washing nozzle 54 side and the tower nozzle 55 side. By the water dividing switch 56, The water supply to the cleaning nozzle 54 and the water supply to the tower nozzle 55 are divided. Borrow it, The washing nozzle 54 and the tower nozzle 55 can each operate separately. Therefore, The amount of water necessary for the cleaning stroke of the cleaning nozzle 54 and the tower nozzle 55 can be suppressed. With this, The cleaning efficiency will increase. however, In the past dishwashers, The tower-shaped nozzle 55 is disposed at approximately the center of the washing nozzle. Therefore, if only the spray of the washing water sprayed from the injection port of the tower-shaped nozzle 55 201200088 is reversed, Tower shape turn. in particular, From the injection nozzle 55 of the tower-shaped nozzle 55, the nozzle is not sufficiently squirted and the reaction occurs. The system occurs very much from the center of rotation: : : : The rotational torque of the washing water is also small. The rotation of the nozzle is not 2 Therefore, therefore, In order to fully rotate the skill nozzle 55, It is necessary to spray the necessary washing water. [PRIOR ART DOCUMENT] [Patent Document 1] [Patent Document 1] JP-A-2008-73U1 SUMMARY OF THE INVENTION Summary of the Invention The dishwasher of the present invention has a washing tank, Wash the pump, Wash nozzles and tower nozzles. The washed matter is stored in the washing tank. The washing pump is pressurized washing water. The washing nozzle is rotatably disposed in the washing tank, And for the things being washed, The washing water pressurized by the washing pump is sprayed. The tower nozzle is attached to the approximate center of the washing nozzle. Stand upright and set up 'to the washed, The washing water pressurized by the washing pump is sprayed. The washing nozzle has a plurality of flow paths, And the valve body. Each of the plurality of flow paths is provided with an injection port. The valve system changes by the water pressure of the washing water supplied from the washing pump. To switch the supply of washing water to one of the plurality of flow paths and the tower nozzle. When the washing water is sprayed from the tower nozzle, Spraying the washing water from at least one of the plurality of flow paths of the washing nozzle, And the washing nozzle rotates. With this, Switching a plurality of flow paths provided in the washing nozzle on one side of the valve body, While spraying from the tower-shaped nozzle having the flow path communicating with at least one of the plurality of flow paths of the washing nozzle, the water is also washed from the washing nozzle to spray 4 201200088. Therefore, The washing nozzle itself can be rotated at the same time. The washing water is sprayed from the washing nozzle and the tower nozzle. With this, Can seek water while on the other hand. The washed object is actually washed by a rotating tower nozzle. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a dishwasher of a first embodiment of the present invention. Fig. 2 is a partial cross-sectional view showing the washing nozzle of the dishwasher of the first embodiment of the present invention as seen from above. Fig. 3 is a cross-sectional view showing a part of a washing nozzle of the dishwasher of the first embodiment of the present invention and a valve body. Fig. 4 is a perspective view of a main part of the dishwasher of the first embodiment of the present invention. Fig. 5 is a perspective view of a main part of the dishwasher of the first embodiment of the present invention. Fig. 6 is a perspective view showing the valve body of the dishwasher of the first embodiment of the present invention. Fig. 7 is a plan view of the valve body of the dishwasher according to the first embodiment of the present invention as seen from above. Fig. 8 is a plan view showing the valve body of the dishwasher of the first embodiment of the present invention as seen from below. Fig. 9 is a partial cross-sectional view showing the vicinity of a valve body of the dishwasher of the first embodiment of the present invention. Fig. 10 is a plan view showing a state in which the valve body of the dishwasher of the first embodiment of the present invention closes the second cleaning flow path inlet. 201200088 Fig. 11 is a plan view showing the washing flow path of the dishwasher and the inlet of the tower nozzle flow path in the second embodiment of the present invention. Fig. 12 is a cross-sectional view showing a part of a washing nozzle of the dishwasher of the second embodiment of the present invention and a valve body. Figure 13 is a plan view showing a state in which the valve body of the dishwasher of the second embodiment of the present invention is in contact with the cleaning nozzle flow path inlet and the tower nozzle flow path. Fig. 14 is a cross-sectional view showing a plan view of Fig. 13 as seen from the side of the tower-shaped nozzle. Figure 15 is a cross-sectional view showing a washing nozzle and a tower nozzle of the dishwasher of the second embodiment of the present invention. Fig. 16 is a cross-sectional view showing the tower nozzle of the dishwasher of the second embodiment of the present invention as seen from above. Fig. 17 is a plan view of the washing nozzle of the dishwasher of the second embodiment of the present invention as viewed from above. Figure 18 is a partially cutaway perspective view of a conventional dishwasher. L. Embodiment 3 Embodiment for implementing the invention Referring to the schema, The embodiment of the invention will be described. Furthermore, The present invention is not limited by the embodiment. (Embodiment 1) FIG. 1 is a schematic cross-sectional view of a dishwasher according to Embodiment 1 of the present invention. Fig. 2 is a partial cross-sectional view showing the washing nozzle of the dishwasher of the first embodiment of the present invention as seen from above. Fig. 3 is a cross-sectional view showing a part of a washing nozzle of the dishwasher of the first embodiment of the present invention and a valve body. Fig. 4 is a perspective view of a main part of the dishwasher of the first embodiment of the present invention. Fig. 5 is a perspective view of a main part of the dishwasher of the first embodiment. Fig. 6 is a perspective view showing a valve body of the dishwasher of the first embodiment. Fig. 7 is a top view of the valve body of the dishwasher of the first embodiment. Fig. 8 is a bottom view of the valve body of the dishwasher of the first embodiment. Fig. 9 is a partial cross-sectional view showing the vicinity of the valve body of the dishwashing of the first embodiment. Fig. 10 is a plan view showing the valve body of the dishwasher of the first embodiment when the second cleaning flow path inlet is closed. In Figure 1, The dishwasher has: Main body 1, Washing tank 2 Tableware basket 4, Water supply department 5, Washing pump 6, Wash nozzle 7, Drainage port 8, Drainage filter 9, Residue filter 1〇, Heating portion 11 'temperature sensor 12, The rotary bearing 13 and the control unit 200 are provided. The main body 1 is provided with a washing tank 2, There is an opening (not shown) that can be opened and closed by a door (not shown). The cutlery basket 4 is housed in the washing tank 2. The laundry 3 such as tableware is used by the user from the opening. It is placed in the cutlery basket 4 and housed in the washing tank 2. The water supply unit 5 is controlled by the control unit 200, Tap water is supplied to the washing tank 2 as washing water. The washing pump 6 is pressurized to supply water from the water supply unit 5, The washing water accumulated in the washing tank 2, And supplied to the washing nozzle 7. The cleaning nozzle 7 includes a nozzle portion 1A and a rotating shaft 14, There is a flow path inside each person. The nozzle portion 1 is centered on the rotating shaft 14 For the axis of rotation 14 to the vertical direction, It is straight and horizontally extended on both sides. In other words, The inside of the nozzle unit 100 is provided to extend side by side from the side of the rotating shaft 14 toward the front end. A plurality of streams that are symmetrical. then, The cleaning nozzle 7 is in the cleaning tank 2, The pressurized washing water supplied from the washing pump 6 is sprayed. The washing water sprayed from the washing nozzle 7 is used to wash the detergent liquid of the laundry 3, Or it is a rinse water for rinsing the object 3 to be washed. 201200088 The drain port 8 is located at the bottom of the washing tank 2, It is in communication with the suction side of the washing pump 6. The drain filter 9 and the residue filter 1 are disposed in the drain port 8, Collect the residue contained in the wash water. The residue screen 10 is disposed above the drainage screen 9. The residue filter 10 mesh is finer than the drainage filter 9, And disassembled and formed freely, It can be removed to discard the collected residue. The heating portion 1] is provided at the bottom of the cleaning tank 2, The washing water accumulated in the washing tank 2 and the drying air in the washing tank 2 are heated. The temperature sensor 12 is disposed on the outer wall of the bottom surface of the cleaning tank 2. The temperature of the washing tank 2 is detected. The rotary bearing 13 is a hollow cylinder that protrudes upward from the bottom of the washing tank 2, It is fixed inside the washing tank 2. The rotary shaft 14 of the washing nozzle 7 is fitted to the rotary bearing 13, The rotating shaft 14 is rotatably supported. The tower-shaped nozzle 39 is attached to the approximately central portion of the washing nozzle 7, Set it up vertically. Near the front end of the upper side of the tower-shaped nozzle 39, A tower nozzle injection port 40 for jetting washing water is provided. As shown in Figure 2, Inside the washing nozzle 7, A plurality of flow paths are formed in point symmetry with respect to the rotation axis 14 as a medium %. in particular, The plurality of flow paths are the first cleaning nozzle flow path 15 and the second cleaning nozzle flow path 16. The first and second washings are contiguous to the nozzle flow path 15, 16 are all centered on the rotating shaft 14, For the vertical direction of the rotary axis, It is straight and horizontally extended on both sides. In the cleaning nozzle 7, The second cleaning nozzle flow path 17 and the second cleaning nozzle flow path inlet 18 which are separated by the approximately cross-shaped ribs 11A are formed. The flow path of the rotary shaft 14 communicates with the second cleaning nozzle flow path 15 via the first cleaning nozzle flow path inlet 17. Similarly, The flow path of the rotary shaft 14 communicates with the second cleaning nozzle flow path 16 via the second cleaning nozzle flow path inlet. The second cleaning nozzle flow path 15 has a plurality of first injection ports. The second cleaning nozzle flow path 16 has a plurality of second injection ports 201200088 20. The first injection port 19 is connected to the first cleaning nozzle flow path 15, It is roughly in a row and has multiples. Similarly, The second injection port 20 is connected to the second cleaning nozzle flow path 16, There are a number of rows in a row. The first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet are separated by approximately ten-shaped ribs 11 、. The fan-shaped opening with a central angle of approximately 9 degrees. In a word, The approximately circular opening portion as shown in Fig. 2 is formed by alternately arranging the first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet 18. The first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet 18 are respectively for the center of the cleaning nozzle 7, There are two points in point symmetry. As shown in Figure 3, The tower-shaped nozzle 39 has a tower-shaped nozzle flow path 21, It is connected to at least one of the first cleaning nozzle flow path 15 and the second cleaning nozzle flow path 16. In this embodiment, The case where the first cleaning nozzle flow path 15 is in communication with the second cleaning nozzle flow path 16 will be described. The first cleaning nozzle flow path 15 branches from the first cleaning nozzle flow path inlet 17 to the tower-shaped nozzle flow path 21. another, The tower-shaped nozzle flow path 21 is not in communication with the second cleaning nozzle flow path 16. As shown in Figures 3 and 4, The rotary shaft 14 has a rotating shaft side engaging portion 30 at a lower portion of the inner wall. The rotating shaft side engaging portion 30 is formed in a spiral shape. Having a plurality of inclined faces inclined to a single direction 3〇A, And a plurality of steps 3〇b which connect the inclined faces 30A to each other. The shaft opening portion 26 of the rotary shaft 14 communicates with the discharge side of the washing bowl 6, The washing pump 6 is rotated by a motor, Thereby, the washing water is continuously supplied through the shaft opening portion 26. In the rotating shaft 14, A valve body 23 for switching the supply of the washing water to the washing nozzle 7 and the tower nozzle is provided, Rotate with the rotating shaft 14. As shown in Figure 6 to Figure 8, The valve body 23 has: Opening portion 24, In the system 201200088, the heart angle is approximately a right angle of the fan-shaped cut portion; And the closed portion 25, A fan-shaped flat end having a central angle which is also approximately a right angle. The valve body 23 provided in the rotary shaft 14 has a hollow cylindrical portion 32' which protrudes downward from the center of rotation. The opening portion 24 and the closing portion 25 are each centered on the hollow cylindrical portion 32. There are 2 diagonally opposite. The closed portion 24 and the closed portion 25 are approximately centered on the hollow cylindrical portion 32, respectively. The fan whose center angle is about 90 degrees is formed in a point symmetrical manner. On the side of the hollow cylindrical portion 32 (rotation center side) of the closed portion 25, A mountain-shaped upper surface engaging portion 28 is formed. Below the periphery of the periphery of the closed portion 25, The lower engaging portion 29 having the lower end side surface inclined is formed. And as shown in Figure 9, The support shaft 31 is formed to protrude downward from the inlet side (the lower side in Fig. 9) of the washing nozzle 7 to the lower side. The hollow cylindrical portion 32 is configured such that the support shaft 31 is insertable. With this, When the valve body 23 rises in the rotating shaft 14 shown in Fig. 3, The support shaft 31 serves as a guide portion for the upward movement of the valve body 23. The support shaft 31 can also be formed by a rib having a cross section. By forming a space between the hollow cylindrical portion 32 by a rib having a ten-shaped shape, It is easy to discharge the foreign matter that has flowed into the outside of the hollow cylindrical portion 32. The basic operation of the dishwasher will be described with respect to the above configuration. The user is from the opening of the main body 1, The laundry 3 such as tableware is placed in the cutlery basket 4, The object to be cleaned 3 is stored in the washing tank 2. then, After the user puts a predetermined amount of detergent, Closing the opening of the main body by closing the door, Start running. The general operation is performed in the following order: Cleaning the trip, Washing off the dirt of the washed object 3; General flushing stroke, Scrutinizing the detergent or residue attached to the object 3 to be washed; Heating the rinse stroke, Washing water by heating the heat, Washing away the detergent or residue attached to the object 3 to be washed; And dry 201200088 itinerary, The person who dries the water droplets attached to the object 3 is dried. First of all, Explain about the cleaning stroke. The control unit 200 operates the water supply unit 5, A predetermined amount of washing water is supplied into the washing tank 2. Next, Wash pump 6 is pressurized, wash water, The washing nozzle 7 or the tower nozzle 39 sprays the washing water. at this time, The heating unit 11 such as an electric heating tube heater provided in the cleaning tank 2 is energized. The cleaning stroke is performed while heating the washing water. When the temperature sensor 12 senses that the washing water is above a predetermined temperature, The control unit 200 stops energizing the heating unit 11. The cleaning stroke is performed for a predetermined time. then, Describe the flushing stroke. When the cleaning time of the predetermined time is ended, The dirty washing water is discharged to the outside of the main body 1. then, The control unit 200 is re-used by the water supply unit 5, The washing water is supplied into the washing tank 2. The control unit 200 further drives the washing pump 6, Spraying the washing water again from the washing nozzle 7 or the tower nozzle 39, Rinse the washed matter 3 to which the detergent or the residue adheres. Rinse for a predetermined time, The control unit 200 discharges the washing water. The washing operation is repeated by repeatedly supplying the washing water. This general flushing stroke is performed continuously for about 2 times. then, The control unit 200 uses the washing water heated by the heating unit 11 . The rinsing stroke of the washed object 3 is performed. At last, The control unit 200 discharges the washing water to the outside of the main body 1. The drying process is completed and the operation is completed; The aforementioned drying stroke is for a predetermined time, Drying is performed by a drying section (not shown). Furthermore, On the cleaning itinerary, General flushing stroke, Heating the rinse stroke, etc. The washing water is circulated as follows. in particular, The washing water in the washing tank 2 passes through the drain filter 9 and the residue filter 10, It is sucked into the washing pump 6 provided in the circulation path (not shown) 11 201200088. Next, Washing pump 6 force α pressure wash water, The washing water is supplied to the washing nozzle 7 and the tower nozzle 39 provided at the bottom of the washing tank 2. The washing water supplied from the washing pump 6 is from the shaft opening portion 26 of the rotary shaft 14, It flows into the rotating shaft 14. The washing water flowing into the rotating shaft 14 is from the washing nozzle flow path inlet 17, 18 flows into the cleaning nozzle flow path 15, 16 and the tower nozzle flow path 21, And from the jet 19 20 and the tower nozzle injection port 40 are sprayed into the washing tank. then, The operation of ejecting the washing water from the washing nozzle 7 and the tower nozzle 39 will be described in detail. When the washing water flows into the rotating shaft 14, The valve body 23 is below the closed portion 25, The washing water is subjected to a water pressure greater than the weight of the valve body 23 itself, Rising inside the rotating shaft 14, In the middle of the rise, The valve body 23 itself begins to rotate. When the valve body 23 ends rising in the rotating shaft 14, The first cleaning nozzle The flow path inlet 17 coincides with the opening portion 24 of the valve body 23. In a word, The rotating shaft 14 communicates with the first washing nozzle flow path 15 and the tower-shaped nozzle flow path 21. At the same time, The second cleaning nozzle flow path inlet 18 is closed by the closed portion 25 of the valve body 23. As a result, The washing water flowing in from the first washing nozzle flow path inlet 17 passes through the first washing nozzle flow path 15, The object 3 is ejected from the first ejection port 19. With this, The washing nozzle 7 rotates together with the tower nozzle 39. Simultaneously, The washing water that has flowed in from the first cleaning nozzle flow path inlet 17 is ejected from the tower-shaped nozzle injection port 40 through the tower-shaped nozzle flow path 21. The tower-shaped nozzle 39 is for the object 3 to be disposed above the dish basket 4, Spray the washing water from below. also, For the laundry 3 disposed under the cutlery basket 4, Spray the wash water from above. The washed matter 3 is thus washed. When the scheduled injection time is over, The control unit 200 stops the washing pump 6. As a result, The valve body 23 does not receive the water pressure of 12 201200088 greater than its own weight at the closed portion 25, Therefore, it descends within the rotating shaft 14. then, The valve body 23 is stopped when it is engaged with the rotating shaft side engaging portion 30 of the rotary shaft 14. When the valve body 23 is engaged with the rotating shaft side engaging portion 30, It operates in synchronization with the washing nozzle 7. After the scheduled time, The control unit 200 drives the washing pump 6 again. With this, The washing water flows again into the rotating shaft 14, The valve body 23 starts to rise. at this time, The opening portion 24 of the valve body 23 is identical to the second cleaning nozzle flow path inlet 18, The second cleaning nozzle flow path inlet 18 is open. The washing water that has flowed in from the second cleaning nozzle flow path inlet 18 and passed through the second cleaning nozzle flow path 16 is from the second injection port 20, It is ejected to the object 3 to be washed. at this time, Since the tower-shaped nozzle flow path 21 is not in communication with the first cleaning nozzle flow path 15, Therefore, the washing water is not sprayed from the tower nozzle injection port 40. The control unit 200 repeats the cleaning flow path switching operation by the valve body 23 for a predetermined time. Further details about the valve body 23 by one forward and backward movement, It is true that the composition of the flow path is switched. As shown in Figures 6 and 7, The closed portion 25 of the valve body 23 has a substantially planar shape. As shown in Figures 9 and 10, The lower side (surface A) of the nozzle unit 100 constituting the first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet 18, Also in a flat shape. When the washing pump 6 is operated, The valve body 23 is attached to the closed portion 25, The water pressure of the washing water flowing in from the shaft opening portion 26 of the rotary shaft 14 is received and starts to rise in the rotary shaft 14. then, The inclined portion of the upper engaging portion 28 shown in Fig. 6 slides on the cross-shaped rib 110 of the washing nozzle 7, The surface of the valve body 23 is rotated approximately vertically upward. then, As shown in Figure 5, The closed portion 25 of the valve body 23 is closed to the second cleaning nozzle flow path inlet 18, and is closed. The opening 24 is opened opposite to the first cleaning nozzle flow path inlet 17. 13 201200088 Thereafter, The washing pump 6 continues to operate for a predetermined time. The valve body 21 is fixed to a position where the first cleaning nozzle flow path inlet 17 is opened. During this period, The first cleaning nozzle flow path 15 and the tower-shaped nozzle flow path 21 that communicate with the first cleaning nozzle flow path inlet 17, Supply wash water. at this time, The valve body 23 is rotated together with the washing nozzle 7. As shown in Figure 5, On the valve body 23, The opening portion 24 is provided with the upper engaging portion 28 so as to coincide with the predetermined cleaning flow path inlet. As shown in Figure 6, The upper engaging portion 8 has a shape that is inclined in the direction of rotation. The valve body 23 is raised on one side, The inclined portion of the upper engaging portion 28 slides on the partition wall. Thereby only the first angle (for example, 45 degrees) is rotated. Next, When the washing pump 6 is temporarily stopped, Since the water pressure of the valve body 23 is pushed up from below, the water pressure does not function. Therefore, the valve body 23 is lowered due to its own weight. at this time, The engaging portion 29 is slid along the inclined surface 30A of the rotating shaft side engaging portion 30 of the rotating shaft 14 as shown in Fig. 4 . When the lower engaging portion 29 of the valve body 23 abuts against the step portion 30B, The valve body 23 will stop. in this way, When the valve body 23 is lowered into the rotating shaft 14, Rotate only the 2nd predetermined angle (for example, 45 degrees). When the washing pump 6 is operated again, The valve body 23 is rotated in the surface of the rotating shaft 14 and raised on one side. In order to make the cleaning flow path inlet opening different from the previous side. in particular, The closed portion 25 of the valve body 23 is opposed to the first cleaning nozzle flow path inlet 17 and is closed. The opening 24 is formed to face the second cleaning nozzle flow path inlet 18. in this way, By running the washing pump 6 intermittently, The washing nozzle flow path inlet through which the washing water flows may be sequentially switched, 18. In a word, The valve body 23 is moved forward and backward by rotating the shaft 14 . That is, one round up and down movement is performed and rotated 90 degrees. that is, Rotate only the amount of the 14 201200088 opening cleaning flow path inlet. Then, the valve body 23 is moved back and forth four times in the up and down direction. Therefore, since the valve body 23 is not required to be switched by an actuator such as a motor. Therefore, there is no object in the flow path of the rotary shaft 14 except for the intervening body 23, which prevents the flow of the washing water. Further, the washing nozzle 7 and the valve body 23 are rotatable together. As above, In the dishwasher of the present embodiment, the valve body 23 switches the plurality of flow paths provided in the cleaning nozzle 7 to spray the washing water. When the washing water is sprayed from the tower nozzle 39, the washing machine is always cleaned. The nozzle 7 sprays the washing water to the dishes. With this, While maintaining the rotation of the washing nozzle 7 while suppressing the amount of water sprayed from the washing nozzle 7, The cleaning performance can be improved by a jet from a plurality of injection ports of the tower nozzle 39. Furthermore, It is desirable to make the total opening area of the nozzle opening 40 of the tower nozzle, It is configured to be larger than the total opening area of the injection port of the cleaning nozzle flow path (in the present embodiment, the i-th cleaning nozzle flow path 15) of the cleaning nozzle 7 that communicates with each other. With this, Since the pressure loss at the tower nozzle injection port 40 of the tower nozzle 39 is reduced, Therefore, the amount of washing water spray from the tower nozzle 39 can be increased. During the period in which the washing water is sprayed from the tower-shaped nozzle flow path of the cleaning nozzle 7 (the second-shaped cleaning nozzle flow path 16 in the present embodiment) that has not been connected to the tower-shaped nozzle 39, The washing water is not sprayed from the tower nozzle 39, However, by increasing the amount of injection during the period from which the wash nozzle is sprayed from the tower nozzle 39 as described above, To improve the overall cleansing power. Since the washed objects such as dishes are washed with the tower-shaped nozzle 39, And a plurality of injection ports are provided in the washing nozzle 7 Therefore, the cleaning performance is improved. , Furthermore, the flow path switching by the valve body 23 is For the purpose of stopping the action of the washing fruit 6 , the description is given. However, it is also possible to change the water pressure of the washing water by changing the number of rotations of the first 20120088 net pump 6. Furthermore, In this embodiment, The form in which the tower-shaped nozzle flow path 21 and the first cleaning nozzle flow path 15 are in communication with each other will be described. However, it is also possible that the two flow paths are separated by a partition wall. at this time, Let the first cleaning nozzle flow path entrance Π, It is divided into an inlet for the tower-shaped nozzle flow path 21 and an inlet for the first cleaning nozzle flow path 15, and is formed. When the washing water is sprayed from the tower nozzle 39, At the same time, it is also ejected from the first cleaning nozzle flow path 15. This type of configuration can also achieve the same effects and effects as those of the present embodiment. also, The tower-shaped nozzle flow path 21 is in communication with both the first cleaning nozzle flow path 15 and the second cleaning nozzle flow path 16 The same effect can be obtained. (Embodiment 2) Fig. 11 is a plan view showing a washing flow path inlet and a tower-shaped nozzle flow path inlet 22 of the dishwasher of the second embodiment of the present invention. Fig. 12 is a cross-sectional view showing a part of the washing nozzle 7 of the dishwasher of the second embodiment of the present invention and the valve body 23. Fig. 13 is a plan view showing a state in which the valve body 23 of the dishwasher of the second embodiment of the present invention abuts on the washing nozzle flow path inlet and the tower nozzle flow path. Fig. 14 is a cross-sectional view showing a plan view of Fig. 13 as seen from the side of the tower-shaped nozzle 39. Fig. 15 is a cross-sectional view showing the washing nozzle 7 and the tower nozzle 39 of the dishwasher of the second embodiment of the present invention. Fig. 16 is a cross-sectional view showing the tower nozzle 39 of the dishwasher of the second embodiment of the present invention as seen from above. As shown in Figure 11, As shown in Figure 15, The tower-shaped nozzle 39 has an injection port 37 formed therein, respectively. The first tower nozzle flow path 33 and the second tower nozzle flow path 34 of 38. The first tower-shaped nozzle flow path 33 is connected to the first tower-shaped nozzle flow path inlet 35, Further, it is also in communication with the first cleaning nozzle flow path inlet 17. also, The first tower 16 201200088 The nozzle flow path 33 is also in communication with the first cleaning nozzle flow path 15. Therefore, The first tower-shaped nozzle flow path 33 and the first cleaning nozzle flow path 15 are The washing water is supplied at the same timing. Similarly, The second tower-shaped nozzle flow path 34 communicates with the second tower-shaped nozzle flow path inlet 36. Further, it is also in communication with the second cleaning nozzle flow path inlet 18. Further, the second tower-shaped nozzle flow path 34 communicates with the second cleaning nozzle flow path 16. Therefore, For the second tower nozzle flow path 34 and the second cleaning nozzle flow path 16, The washing water is supplied at the same timing. As shown in Figure U, The first cleaning nozzle flow path inlet 17 and the second cleaning nozzle flow path inlet 18 are separated from each other by the approximately cross-shaped ribs 120. It is provided in the washing nozzle 7. Similarly, The first tower-shaped nozzle flow path inlet 35 and the second tower-shaped nozzle flow path inlet 36 are also separated from each other by the approximately cross-shaped ribs 120. It is provided in the washing nozzle 7. The first tower-shaped nozzle flow path inlet 35 and the second tower-shaped nozzle flow path inlet 36 are respectively provided in two places. One point is provided in point symmetry for the center of the rib 120. a first tower nozzle flow path inlet 35 and a second tower nozzle flow path inlet 36, The center angle is approximately at right angles, The shape of the front end of the fan is cut out. The first tower-shaped nozzle flow path inlet 35 and the second tower-shaped nozzle flow path inlet 36 are provided in two places, respectively, and one point is provided in point symmetry with respect to the center of the rib 120. The first tower nozzle flow path inlet 35 and the second tower nozzle flow path inlet 36, The center angle is approximately at right angles, The shape of the front end of the fan is cut out. For the center of the rib 120, The first cleaning nozzle flow path inlet 17 is provided on the outer peripheral side of the first tower-shaped nozzle flow path inlet 35. Similarly, For the center of the rib 120, The second cleaning nozzle flow path inlet 18 is provided on the outer peripheral side of the second tower-shaped nozzle flow path inlet 36. Furthermore, In the form of this practice, Forming a cleaning nozzle flow path inlet and a tower nozzle flow path inlet, respectively However, it is also possible to clean the nozzle flow path inlet 17, 18 and tower nozzle flow path 17 201200088 Entrance 35, 36 is formed as an entrance, The nozzle mouth flow path inlet and the tower nozzle flow path inlet are connected to each other in the cleaning nozzle 7_, and the configuration is the same as that in the first embodiment. The operation of the cleaning nozzle 7 and the tower nozzle 39 of the present embodiment will be described below. The basic operation system is the same as the embodiment. The control unit 2 controls the driving and stopping of the cleaning system 6, and the like. Control _23 action 4 its switching flow, When the opening portion 24 and the first cleaning nozzle flow path inlet 17 are in contact with each other, the washing water flows into the first cleaning nozzle flow path I5 and the third column nozzle flow path 33' that communicates therewith from the i-th injection port B and The first nozzle injection port η is sprayed. After the operation of the predetermined time, the control unit 200 stops the driving of the washing pump 6, The cleaning system 6 is driven again thereafter. Thereby controlling the action of the valve body 23, Switch the flow path. After the absence, When the opening portion 24 and the second cleaning nozzle flow in a heart, The washing water flows into the second washing nozzle flow path 丨6 and the second tower-shaped nozzle flow path 34 that communicates therewith. The fourth injection port 20 and the second tower nozzle are sprayed (four). in this way, The dishwasher of the present embodiment is in a state in which the population of the flow path is open, The washing water can always be sprayed from the tower nozzle 39. & , The detergency is further improved. also, As shown in Figure 13, The first tower-shaped nozzle flow path inlet 35 and the second tower-shaped nozzle flow path population 36 are connected to the flow _ change side of the valve body 23, that is, not closed by the closed π portion 25 of the valve body 23. The entrance to the tower nozzle flow path is partially closed. Dijon County shows from the first net nozzle flow path inlet 17 and the first ice nozzle flow path inlet 35, The washing nozzle 7 is supplied with washing water. Valve body _ 201200088 Sedi 2 cleaning nozzle flow path inlet 18 and second tower nozzle flow path inlet %. At this time, part of the valve body 23 is closed (part B in the figure) of a portion of the first tower-shaped nozzle flow path inlet 35. After running for a predetermined period of time in this state, The control unit 200 stops the washing pump 6 in order to switch the flow path. Or reducing the number of motor revolutions of the washing pump 6, Reducing the water pressure applied to the valve body 23, The valve body 23 is lowered away from each flow path inlet. By then, Supply to the tower nozzle flow path 33, The washing water of 34 flows to the side of the first tower-shaped nozzle flow path inlet 35 of the opening. then, a portion B of the valve body 23 in which one of the i-th tower nozzle flow path inlets 35 is closed, The force is applied from the washing water to the lower side. therefore, When the valve body 23 moves downward, The washing water from the tower-shaped nozzle flow path is reversed to the inlet of the tower-shaped nozzle flow path which is not closed by the closed portion 25 of the valve body 23. In a word, at this time, Due to the exertion of the washing water falling down, The valve body 23 will drop earlier. therefore, It can be used to reduce the weight of the valve body 23, miniaturization, The switching reliability of the valve body 23 is also improved. also, The time loss during switching can be kept to a minimum. also, As shown in Figure 4, Figure 5, The valve body 23 has a spiral lower engaging portion 29, For the rotation shaft side engagement portion % of the rotary shaft 14, In the same direction, the observer is inclined with the same degree. When the body Μ is connected to the water pressure of the washing water and moves down, ' ||& Job to the flow, That is, the lower side of the applied water of the washing water falling below _23 is rubbed with the rotation_fastening portion 30, At the same time, the rotational torque for the rotation and the falling becomes larger... The wiping surface of the lower engaging portion 29 which is rubbed against the rotating shaft side engaging portion 30 is substantially defined by the r shape of the end surface and the thickened portion of the lower engaging portion Same size, etc. The contact area of the rotating shaft and the rotating shaft are reduced as much as possible. Further, by rotating the inner diameter and the rotation of the lower engaging portion 29 of the valve body 23, the inner diameter of the shaft side engaging portion 30 is 20120088, It is substantially the same as the inner diameter of the shaft opening portion 26, To shorten the distance from the center of rotation of the valve body 23, The rotational torque becomes large. therefore, The washing nozzle 7 also becomes small, It also improves washing performance. also, The time loss during switching can be kept to a minimum. As shown in Fig. 15, the ejection port 37, 38 should be set at different heights. By this, the position of the jet washing water can be changed. Can be washed in a wider range. also, As shown in Figure 5, It is preferable to form the first tower-shaped nozzle injection port 37 provided in the first tower-shaped nozzle flow path 33 in such a manner that the total opening area of each is different. And the second tower-shaped nozzle injection port 38 that is incident on the second tower-shaped nozzle flow path 34. Specifically, the cleaning nozzle flow path on the side where the total opening area of the injection port is large, At the same time, the total opening area of the injection port of the tower-shaped nozzle flow path on the side of the washing water spray side is preferably a cleaning nozzle flow path which is smaller than the smaller total opening area of the injection port, At the same time, it is the total opening area of the injection port of the tower-shaped nozzle flow path on the washing water injection side. For example, when the total opening area of the first injection port 9 is smaller than the total opening area of the second injection port 20, The total opening area of the second tower nozzle injection port 38 is made smaller than the total opening area of the first tower nozzle injection port 37. at this time, The total opening area of the injection ports of each flow path, For example, the opening area of the second tower nozzle injection port 37 and the total opening area of the first injection port 19 and the opening area of the second tower nozzle injection port 38 and the total opening area of the second injection port 20, It is better to be the same. With this, The area of the final opening of the flow path may be the same in the two flow paths. Therefore, The flow rate circulated by the washing pump 6 is maintained at a constant level. The surface switching flow path can be used to perform various cleaning methods for the object 3 such as tableware, such as washing with a large pressure jet. It can also be cleaned with a jet of low pressure but high flow. Therefore, the cleaning efficiency and washing performance can be improved. 20 201200088 Figure 16 shows It is also possible to provide four flow paths inside the tower nozzle 39. Oh, The inner (four) cross-shaped partition 42 of the tower-shaped nozzle 39 is cut into four. then, For the center of the partition wall 42, That is, in the tower spray, the ‘^ is located in a set of point symmetrical two flow paths, Set as the first tower nozzle grab 33, Located in another set of 2 symmetrical channels, The second tower-shaped nozzle grip 34 is set. then, It is preferable to constitute, for example, by switching the valve body 23, The washing water is simultaneously sprayed from the two tower-shaped nozzle flow paths 33, The washing water is sprayed from the two tower nozzle flow paths 34. Then, the respective ejection openings ' of the tower-shaped nozzle flow paths 33 and 34 for simultaneously jetting the washing water are preferably provided in a point symmetrical position with respect to the center of the tower-shaped nozzle 39. here, The injection port of the tower nozzle 39, 38 is mainly for washing the dishes such as tableware set in the meal basket 4, And disposed near the front end of the tower nozzle 39, The office is located above. By the jet sprayed from the injection port of the tower nozzle 39, The washing nozzle 7 is subjected to the reaction force of the jet. In particular, it is provided at the injection port 37 of the tower nozzle 39, The 38 series is easily inclined because it is provided at a distance away from the underside of the washing nozzle 7. As shown in Figure 16, At the same time, the jetting opening is set to be point-symmetric with respect to the center of the tower-shaped nozzle 39, Thereby, the action of the jet reaction force caused by the washing water sprayed from the tower mouth is relatively opposite, The cleaning nozzle 7 and the tower nozzle can be easily rotated in a balanced manner. therefore, Wash nozzle 7 stable rotation, Increased reliability, And the cleaning performance is also improved. also, As shown in Figure 17, It is preferable to shoot from the mouth of the tower-shaped nozzle 39, 38 sprayed washing water, And the ejection port 19 from the cleaning nozzle 7, The sprayed washing water does not conflict, To configure the injection port 37 of the tower nozzle 39, 38 and the injection port of the washing nozzle 7 2(). Explain the actions of this configuration. The valve body 23 switches the flow path in the washing nozzle 7, The washing water (solid arrow) is sprayed simultaneously from the third jet port 第 and the j 21 201200088 tower nozzle injection port 37. After the scheduled time, The valve body 23 switches the flow path, The washing water (dashed arrow) is simultaneously sprayed from the second injection port 20 and the second tower nozzle injection port 38. After the scheduled time of operation, The valve body 23 is again switched to the washing flow path that communicates with the first injection port 19 and the first tower nozzle injection port 37. The switching is repeated for a predetermined time. at this time, The washing water sprayed from the jets respectively crosses after the jets without conflict. The objects 3 to be washed, such as tableware provided in the washing tank 2, are supplied in a wide range and uniformly distributed. Therefore, Less cleaning and less, Thereby, the cleaning performance can be improved. also, The cleaning nozzle 7 may be configured to be reversed by switching the flow path. The washing nozzle 7 is rotated by the reaction force of the jet from the injection port. Therefore, the angle of the ejection opening as a whole is set in the opposite direction to the rotation direction of the cleaning nozzle 7. Furthermore, The invention relates to a washing method of a dishwasher, The shape or size of the main body 1 is not limited, Tableware configuration, Configuration of each part, etc. Industrial availability As above, Since the dishwasher of the present invention can switch the cleaning flow path, Spraying washing water from many jets, Improves cleaning performance, It is therefore very useful as a dishwasher. In other words, The entire range of the washing tank can be washed in a wide range and at a high density. Spray the washing water evenly, The placement of the washed objects can also be improved. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a dishwasher of a first embodiment of the present invention. Fig. 2 is a partial cross-sectional view showing the washing nozzle of the dishwasher 12 201200088 according to the first embodiment of the present invention. Fig. 3 is a cross-sectional view showing a part of a washing nozzle of the dishwasher of the first embodiment of the present invention and a valve body. Fig. 4 is a perspective view of a main part of the dishwasher of the first embodiment of the present invention. Fig. 5 is a perspective view of a main part of the dishwasher of the first embodiment of the present invention. Fig. 6 is a perspective view showing the valve body of the dishwasher of the first embodiment of the present invention. Fig. 7 is a plan view of the valve body of the dishwasher according to the first embodiment of the present invention as seen from above. Fig. 8 is a plan view showing the valve body of the dishwasher of the first embodiment of the present invention as seen from below. Fig. 9 is a partial cross-sectional view showing the vicinity of a valve body of the dishwasher of the first embodiment of the present invention. Fig. 10 is a plan view showing a state in which the valve body of the dishwasher of the first embodiment of the present invention closes the second cleaning flow path inlet. Fig. 11 is a plan view showing a washing flow path and a tower nozzle flow path inlet of the dishwasher according to the second embodiment of the present invention. Fig. 12 is a cross-sectional view showing a part of a washing nozzle of the dishwasher of the second embodiment of the present invention and a valve body. Figure 13 is a plan view showing a state in which the valve body of the dishwasher of the second embodiment of the present invention is in contact with the cleaning nozzle flow path inlet and the tower nozzle flow path. Fig. 14 is a cross-sectional view of the top view of Fig. 13 viewed from the side of the tower-shaped nozzle 23 201200088. Figure 15 is a cross-sectional view showing a washing nozzle and a tower nozzle of the dishwasher of the second embodiment of the present invention. Fig. 16 is a cross-sectional view showing the tower nozzle of the dishwasher of the second embodiment of the present invention as seen from above. Fig. 17 is a plan view of the washing nozzle of the dishwasher of the second embodiment of the present invention as viewed from above. Figure 18 is a partially cutaway perspective view of a conventional dishwasher. [Main component symbol description] 1... main body 16. . . The second cleaning nozzle flow path 2, 52. . . Washing tank 17. . . The first cleaning nozzle flow path inlet 3. . . Washed matter 18. . . The second cleaning nozzle flow path inlet 4, 51. . . Cutlery basket 19...first jet port 5. . . Water supply department 20. . . The second injection port 6, 53. . . Washing pump 21. . . Tower nozzle flow path 7, 54, washing nozzle 22... tower nozzle flow path inlet 8. . . Drain port 23... valve body 9. . . Drainage filter 24. . . Opening 10...residue filter 25. . . Closed section 11. . . Heating portion 26... shaft opening portion 12. . . Temperature sensor 28____L face fastening part 13. . . Rotary bearing 29. . . The following fastening part 14. . . Rotary shaft 30. . . Rotary shaft side fastening part 15. . . The first cleaning nozzle flow path 30A. . . Inclined surface 24 201200088 30B. . . Ladder 42. · 31. . . Support shaft 50. . 32. . . Hollow cylindrical part 53·. 33. . . The first tower nozzle flow path 54. . 34. . . The second tower nozzle flow path 55. . 35. . . The first tower nozzle flow path inlet 56. . 36. . . The second tower nozzle flow path inlet 100 37, 38. . . Injection port 110 39. . . Tower nozzle 200 40. . . Tower nozzle injection port. Partition wall . Dishwashing machine • Washing pump • Washing nozzle. Tower nozzle. Water distribution switching unit. . Nozzle section, 120. . . Ribs . . Control unit 25