200400001 Π) 玖、發明說明 【發明所屬之技術領域】 本發明係有關於被裝載在插秧機上，並與插秧作業並 行，散佈農藥·肥料等流體之插秧機裝載型流體散佈裝置 【先前技術】 在種稻作業中，從秧苗發芽到水田插秧，藉由以下的 順序加以進行的是一般所見的。首先，於設置了苗床之箱 子中，撒下穀種後使其發芽，一直培育至一定大小。其中 ，所使用的箱子稱爲育苗箱，並依照一定的規格加以製成 。其次，將利用育苗箱所培育成之一定大小的秧苗置放於 插秧機上後再插秧於水田中。 然而，在將秧苗插秧於水田前，將驅除病害蟲所用之 顆粒狀的農藥散佈於秧苗的根株上。習知以來，該農藥散 佈係例如日本特開平8 - 2 8 1 1 5 7號公報上所揭示的，在將 秧苗置放於插秧機前，使用散佈器前加以進行。 【發明內容】 發明欲解決之課題 然而，近年來，由於隨著農業從事者的高齡化，對於 過於嚴酷的農作業乃敬而遠之，因此儘管只是稍微而已， 也希望可以減少農作業的工作量。 但是，於上述的習知技術中，由於在置入育苗箱的狀 -4 - (2) (2)200400001 態下散佈農藥，之後再將秧苗置放於插秧機上後再進行水 田插秧，對於農業從事者之體力負擔會造成很大的問題。 本發明係有鑑於上述情況者，以提供藉由與插秧作業 並行’將農藥·肥料等流體散佈於秧苗上，因此可以減少 農作業的工作量之插秧機裝載型流體散佈裝置爲目的。 爲解決課題之手段 爲了解決上述課題，本發明係提出了如下所述之手段 〇 關於申請專利範圍第1項之發明，係針對於被裝載在 插秧機上，並散佈農藥•肥料等流體之插秧機裝載型流體 散佈裝置，其特徵爲：具備有積存前述流體之積存部、及 將前述流體散佈於置放在前述插秧機上的秧苗之散佈機構 、及將前述流體由前述積存部供給至前述散佈機構之供給 泵。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 I舌’農藥·肥料等流體係利用供給栗由積存部被供給至散 佈機構，再根據散佈機構，被散佈於置放在插秧機上的秧 苗。因此，可以與插秧作業並行，將農藥·肥料等流體散 佈於秧苗上，以圖得農作業的工作量減削。 又，關於申請專利範圍第2項之發明，係於申請專利 範圍第1項所述之插秧機裝載型流體散佈裝置中，具備了 使根據前述散佈機構之流體散佈與前述插秧機的插秧動作 同步，呈間歇性進行之散佈動作控制機構。 (3) (3)200400001 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話，由於散佈機構與利用插秧機之插秧動作同步，呈間歇 性地進行流體散佈，因此不論插秧速度，皆可散佈一定量 的流體於秧苗上。 換言之，例如在插秧速度慢之情況下，根據散佈動作 控制機構，使流體散佈之時間間隔變長，在插秧速度快之 情況下，藉由使流體散佈之時間間隔變短，而可以使散佈 於秧苗上之流體散佈量保持在一定量。 <1 又，關於申請專利範圍第3項之發明，係於申請專利 範圍第2項所述之插秧機裝載型流體散佈裝置中，前述散 佈動作控制機構係爲根據被具備在插秧機上之秧苗置放台 的往返動作再加以動作。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話，散佈動作控制機構係爲根據秧苗置放台的往返動作再 加以動作。因此，由於秧苗置放台的往返動作與插秧機之 插秧動作爲同步動作，例如當插秧動作變慢時，秧苗置放 ® 台的往返動作亦變慢，當插秧動作變快時，秧苗置放台之 往返動作亦變快。因此，不論插秧速度，皆可藉由散佈機 構，將所寄望量的流體散佈於秧苗上。 又，關於申請專利範圍第4項之發明，係於申請專利 範圍第3項所述之插秧機裝載型流體散佈裝置中，前述散 佈動作控制機構係具備了：安裝於被具備在插秧機上之秧 苗置放台，且與該秧苗置放台一倂往返動作，而成爲前述 散佈機構動作的契機之動作契機部、及朝向前述秧苗置放 -6 - (4) (4)200400001 台，並安裝於插秧機本體上，檢測隨著前述秧苗置放台之 往返動作而移動的動作契機部接近之近接開關、及將根據 該近接開關之前述動作契機部的檢測作爲契機而使前述散 佈機構動作之控制部。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話，在使動作契機部與秧苗置放台一倂往返移動的過程中 ，近接開關檢測出動作契機部的接近，並將每個近接開關 檢測出動作契機部接近的其輸出作爲契機而使散佈機構動 作。因此，可以藉由散佈機構，將所寄望量的流體散佈於 秧苗上。 又，關於申請專利範圍第5項之發明，係於申請專利 範圍第2至4項中任一項所述之插秧機裝載型流體散佈裝 置中，前述散佈機構係具備了 ：至少一個散佈流體之散佈 器、及至少一個設置於散佈器及前述供給泵之間的電磁閥 ’且該電磁閥之開/關係藉由前述散佈動作控制機構加以 控制。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話，由於藉由散佈動作控制機構控制電磁閥的開/關，因 此可以與插秧動作同步，呈間歇性地由散佈器散佈流體。 又，關於申請專利範圍第6項之發明，係於申請專利 範圍第5項所述之插秧機裝載型流體散佈裝置中，前述散 佈機構係具備了 ：被設置於前述供給泵及前述電磁閥之間 ’且暫時保留由前述供給泵所供給的流體之暫存容器，且 至少在前述電磁閥爲關閉的狀態下，由前述供給泵供給流 (5) (5)200400001 體時，前述暫存容器內之壓力會上升。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話，至少在電磁閥爲關閉的狀態下，由供給泵供給流體至 暫存容器，而使暫存容器內之壓力上升。當由該狀態變成 電磁閥爲開啓的狀態時，流體則利用暫存容器內之壓力， 由散佈器朝外方散佈。爲此，可以利用與供給泵脈動無關 之安定的壓力散佈流體，因此可以將流體散佈至秧苗置放 台之所寄望的位置。 Φ 又，關於申請專利範圍第7項之發明，係於申請專利 範圍第5項所述之插秧機裝載型流體散佈裝置中，前述散 佈機構係具備了：散佈流體之散佈噴嘴、及搖動該散佈噴 嘴之擺動機構，且該擺動機構之動作係藉由前述散佈動作 控制機構加以控制。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話，藉由利用擺動機構搖動散佈噴嘴，在一次的散佈動作 下，可以使流體散佈達及廣泛範圍。 · 又，關於申請專利範圍第8項之發明，係於申請專利 範圍第6項所述之插秧機裝載型流體散佈裝置中，在前述 供給泵及前述暫存容器之間，設置了使該暫存容器內的壓 力保持於一定之壓力調整閥，且至少在該壓力調整閥爲關 閉的狀態下，設置了將供給泵所吸取的流體回流至積存部 之循環手段。 若是根據關於本發明之插秧機裝載型流體散佈裝置的 話’在電磁閥爲關閉的狀態下，利用供給泵使流體被供給 -8- (6) (6)200400001 至暫存容器內的同時，且使暫存容器內的壓力上升。再者 ，當暫存容器內之壓力到達預定値時，壓力調整閥係會關 閉而阻止朝暫存容器內之流體流入。因此，可以使暫存容 器內之壓力不會上升過剩，而可以防止暫存容器的損壞。 又，由於藉由供給泵及壓力調整閥，可以使暫存容器 內的壓力保持於一定，因此在電磁閥開啓時，可以使由散 佈器所散佈之流體的流量成爲一定，且輕易地將所寄望的 流體量散佈於秧苗上。 而在壓力調整閥爲關閉的狀態下，可以利用循環手段 ，使由供給泵所吸取之流體回流至積存部。又，即使在壓 力調整閥爲開啓的狀態下，當通過供給泵之每單位時間的 平均流量較通過壓力調整閥之每單位時間的平均流量更大 之情況下，亦可以利用循環手段，將利用供給泵所吸取的 流體之一部份回流至積存部。 如此一來，對於積存部而言，當進行流體之,流出及流 入時，於積存部內會產生流動，而可以攪拌積存部內之流 體。 【實施方式】 發明之實施形態 第1圖至第6圖係顯示有關於本發明之一實施形態， 關於該實施形態之插秧機裝載型流體散佈裝置（以下，簡 稱爲散佈裝置）係爲散佈農藥液於被置放在插秧機的秧苗 置放台S上之秧苗者。又，該農藥液係爲以預定的濃度， (7) (7)200400001 將顆粒狀的農藥溶解於水中者，且以驅除病害蟲爲目的。 該散佈裝置被裝載於插秧機上，如第1圖所示，具備 有：積存農藥液之積存槽（積存部）1、及與插秧作業並 行，散佈農藥液之散佈機構2、及將農藥液由積存槽1供 給至散佈機構2之供給泵3、及提供根據秧苗置放台S的 返往動作而動作，並使利用散佈機構2之農藥液散佈與插 秧動作同步，呈間歇性進行之散佈動作控制機構4動作所 用的電力之電源機構5。 散佈機構2係具備了：暫時保留利用供給泵所供給的 農藥液之暫存室（暫存容器）6、及朝向秧苗置放台S之 下端部，且散佈農藥液之多個散佈器7、及被設置於暫存 室6下端部之多個電磁閥8、及連接電磁閥8及散佈器7 之多條軟管9。 暫存室6係爲當農藥液由供給泵3被供給時，其內部 壓力會上升的容器，並藉由電磁閥8的開啓，使農藥液利 用該暫存室6內之壓力而由散佈器7被散佈出去。 散佈器7係被固定於設置在秧苗置放台S後方的支撐 框架10上，而支撐框架10係被固定於使秧苗撥取爪P動 作之齒輪箱B上。 電磁閥8係爲藉由散佈動作控制機構4，控制其開/ 關狀態者，在電磁閥8爲開啓的狀態下，農藥液係由暫存 室6經過軟管9而被供給至散佈器7。 軟管9係由可易於彈性變形之橡膠所構成的，且可以 順著插秧機之各部位而輕易地設置。 -10- (8) (8)200400001 散佈器7係如第2圖所示，配合秧苗置放台S的條數 (於圖中，相當於領域S 1〜S 5 )而設置了多個，且相互 之間以等間隔加以配置。 電磁閥8係配合切換使用在插秧作業之秧苗置放台S 的條數之切換開關數量而設置了多個。此圖中將秧苗置放 台S之領域SI、S2及領域S4、S5係各自利用1個切換 開關被同時切換使用狀態。因此，連接1個電磁閥8及2 個散佈器7、7之軟管9係成爲分岐的狀態。 散佈器7係如第3圖、第4圖所示，具備了：朝向秧 苗置放台S，散佈由軟管9所供給的農藥液之散佈噴嘴1 1 、及使散佈噴嘴1 1與插秧作業同步，呈間歇性搖動之擺 動機構1 2、及收納擺動機構1 2之收納殼體1 3。散佈噴嘴 1 1係成形爲略呈L字形的圓筒狀管，其一端部係被連接 於軟管9上，且由收納殼體1 3之底部13 a朝外方突出。 散佈噴嘴1 1之前端部1 1 b係爲可以朝向秧苗置放台的方 向（Z方向）散佈農藥液。 擺動機構1 2係由被固定於散佈噴嘴1 1的基端部！i a之板狀構件1 4、及被設置於板狀構件1 4之長方向的一 端部之彈簧1 5、及被設置於另一端部之螺線管1 6所構成 〇 彈簧1 5係使其一端被固定於板狀構件1 4上，而另一 端則被固定於收納殻體1 3上。 螺線管16係由螺線管本體丨6 a 、及驅動軸16 b所 構成’藉由散佈動作控制機構4加以控制其動作。螺線管 -11 - (9) (9)200400001 本體1 6 a則被固定於收納殼體1 3上。 在螺線管1 6沒有動作的狀態下，利用彈簧1 5之拉力 ，使驅動軸1 6 b成爲伸展的狀態。再者，當螺線管1 6動 作時，藉由將驅動軸1 6 b被拉進固定在收納殼體1 3上之 螺線管本體1 6 a內部，使板狀構件14以與散佈噴嘴1 1 之基端部1 1 a的固定位置爲中心旋轉，而搖動散佈噴嘴 1 1 〇 又，在被插入收納殼體13內之軟管9的中途上，設 置了防止農藥液由散佈噴嘴1 1側朝軟管9側逆流之逆止 閥1 7。該逆止閥1 7係用於防止空氣由散佈噴嘴1 1側混 入軟管9內，而使由各散佈器7所散佈之農藥液保持於一 定量。 散佈動作控制機構4係如第1圖所示，具備了 ：被固 定於秧苗置放台S上，且成爲散佈機構2動作的契機之動 作契機部2 1、及被固定於插秧機本體Μ，且檢測出動作 契機部接近之近接開關22、及以近接開關之檢測作爲契 機而使散佈機構2動作之控制部23。 動作契機部2 1係如第5圖所示，由被安裝於與秧苗 置放台S —倂往返移動之桿狀型材24上的多個金屬製螺 栓25所構成，該桿狀型材24係與秧苗置放台S之移動方 向平行地被安裝於秧苗置放台S的內側。 桿狀型材24係爲具有剖面爲〕字形之所謂隧道形狀 ，在使中央的溝部24 a爲朝向前方的狀態下，利用束帶 26被固定於秧苗置放台S的樑部S X等上。多個螺栓25 -12- (10) (10)200400001 係被安裝於相當於溝部24 a之底面的一部份上，且以等 間隔地被配列於較秧苗置放台S之移動寬幅稍小的範圍。 近接開關24係可自由移動地安裝於桿狀型材24之長 度方向，且具有藉由磁力線.作用，檢測隨著秧苗置放台S 的往返動作而移動之螺栓2 5接近的檢測部2 2 a。該檢測 部2 2 a係對於順著桿狀型材24可自由移動地被安裝的台 車27而言，爲朝向溝部24 a之底面被固定著。 就台車27而言，將兩個車輪27 a各自被安裝於兩側 上，並藉由使此等車輪27 a可自由轉動地嚙合於被設置 在桿狀型材24的軌道部24 b上，而成爲可在桿狀型材 24之長度方向自由移動。 該近接開關22係連同台車27對於桿狀型材24而言 爲相對移動，每當檢測部22 a檢測到螺栓2 5接近時，即 被開/關。 於控制部2 3上，如第1圖所示’設置了使供給泵3 動作之主開關2 3 a、及使電磁閥8及螺線管1 6動作之切 換開關23 b。在使主開關23 a爲ON的狀態下’由電源 機構5供給電力至供給泵3，在使切換開關23 b爲ON的 狀態下，根據近接開關2 2之開/關’使電磁閥8及螺線 管1 6動作的狀態。 在供給泵3及暫存室6之間，設置了將暫存室6內之 壓力保持於一定所用之壓力調整閥3 1。爲此’即使供給 泵3持續動作，亦可以防止暫存室6內之壓力上升過剩’ 而使暫存室6損壞。又，在供給泵3及壓力調整閥31之 -13- (11) (11)200400001 間，設置了將利用供給泵3所吸取，但沒被供給至暫存室 6內的農藥液回流至積存槽1所用之軟管（循環手段）32 〇 針對如上述所構成之散佈裝置的使用方法加以說明。 首先，將利用育苗箱所培育之秧苗束置放於秧苗置放 台S，且將農藥液倒入積存槽1內。其次，將主開關23 a成爲ON狀態而使供給泵3動作，且將切換開關成爲 ON狀態，使散佈機構2根據近接開關22的開/關而動作 的狀態。 此時，農藥液由積存槽1通過供給泵3後，被供給至 暫存室6內，使得暫存室6內之壓力上升。再者，當暫存 室6內之壓力達到預定値時，壓力調整閥3 1則會關閉而 停止農藥液朝暫存室6供給。爲此，利用供給泵3所吸取 之農藥液則通過軟管3 2後再回流至積存槽1。 又，即使壓力調整閥3 1在開啓的狀態下，在通過供 給泵3之每單位時間的平均流量較通過壓力調整閥3 1之 每單位時間的平均流量更大之情況下，利用供給泵3所吸 取的農藥液中之一部份亦會通過軟管3 2回流至積存槽i 〇 如此一來，對於積存槽1而言，當進行農藥液之流出 •流入時，於積存槽1內產生流動，而可以攪拌積存槽1 內之農藥液。 再者，當開始進行利用插秧機之插秧時，秧苗置放台 S係如第6圖所示，與利用撥取爪P之秧苗撥取動作同步 -14- (12) (12)200400001 ’朝側方（X方向）移動。其中，撥取爪p撥取一次的秧 苗撥取領域s b係爲秧苗置放台s中在圖示爲虛線所包圍 的部份’而位於秧苗置放台S下端部S a之各撥取領域S b 的秧苗係隨著秧苗置放台S的移動，利用撥取爪P依序地 被撥取。其後，當下端部S a的狹苗全部被撥取結束時， 秧苗束則會滑移至秧苗置放台S的下端部Sa後，秧苗置 放台S則一邊朝Y方向移動，一邊利用撥取爪p依序地 撥取秧苗。 _ 在上述之插秧動作之時，桿狀型材2 4係與秧苗置放 台S —倂朝側方移動，而每當使被安裝在桿狀型材24之 多個螺栓2 5通過近接開關22時，使得近接開關呈間歇性 開/關。再者，使與近接開關22的開/關同步，利用散 佈機構2之朝秧苗的農藥液散佈得以進行。 換言之，當非接觸開關24開/關時，電磁閥8則暫 時地被開啓，使得農藥液由散佈噴嘴1 1朝向秧苗置放台 S散佈，且使螺線管1 6的驅動軸1 6 a進行一次往返移動 ® 後而搖動散佈噴嘴1 1。 此時，與供給泵3之脈動無關，由於從暫存室6利用 一定的壓力，使農藥液由散佈噴嘴1 1被散佈出去，因此 農藥液的散佈量可以保持於一定。再者，可以使農藥液被 散佈至對應於散佈噴嘴1 1所搖動的範圍之秧苗置放台S 的預定部份。其中，預定部份係如第6圖所示，將位於秧 苗置放台S下端部Sa的上方側之散佈領域Sc分割爲多個 的總括散佈領域Sc 1〜Sc4之各領域表示之。 -15- (13) (13)200400001 再者，在秧苗置放台S朝X方向移動的期間，每當 近接開關22檢測時，呈間歇性地進行農藥液散佈，因此 可以使農藥液依序地由總括散佈領域Scl被散佈至總括散 佈領域S c 4。 上述之農藥液散佈，在秧苗置放台S朝Y方向移動 期間，亦被同樣地進行著，農藥液則依序地由總括散佈領 域Sc4被散佈至總括散佈領域Scl。 在根據插秧機之變更插秧速度之情況下，由於秧苗置 放台S的移動速度同步變慢，因而使根據近接開關22之 螺栓25檢測的時間間隔產生了變化。因此，與近接開關 22之開/關同步之利用散佈機構2的農藥液散佈之時間 間隔亦產生了變化。 在利用插秧機之連續插秧動作期間，雖然可以利用以 上的要領，由散佈機構2呈間歇性地進行農藥液散佈，但 是於停止插秧動作時，由於秧苗置放台S的往返移動停止 了，因此散佈機構2也停止而中斷了農藥液的散佈。 如上述所示，若是根據該插秧機裝載型流體散佈裝置 的話，由於與利用插秧機之插秧動作並行，而將農藥液散 佈於秧苗上，因此可以圖得農作業的工作量的削減，並可 以減輕農業從事者之體力負擔。 又，由於在動作契機部2 1與秧苗置放台S —倂往返 移動的過程中，每當近接開關22檢測出螺栓25接近時， 將其輸出作爲契機而使散佈機構2之電磁閥8動作，因此 可以使散佈機構2與利用插秧機之插秧動作同步’呈間歇 -16- (14) (14)200400001 性地進行農藥液散佈。因此，無關於插秧動作的速度，利 用散佈機構2，可以散佈所寄望量的農藥液於秧苗上。 又，藉由設置壓力調整閥31，不會造成暫存室6內 之壓力上升過剩，而可以防止暫存室6之損壞。 再者，藉由供給栗3及壓力調整閥3 1，使暫存室6 內之壓力保持於一定，由於電磁閥8在開啓時，與供給泵 3之脈動無關，農藥液是利用該暫存室6內之壓力由散佈 噴嘴1 1朝外方散佈出去，因此可以使由散佈器7所散佈 之農藥液的流量保持於一定。因此，可以輕易地將一定量 的農藥液散佈至秧苗置放台S之所寄望的位置。 再者，由於在散佈農藥液時，擺動機構1 2會搖動散 佈噴嘴1 1，藉由一次的散佈動作，可以散佈農藥液於秧 苗置放台S之廣泛範圍。 又，由於藉由供給泵3及軟管32，攪拌積存槽1內 之農藥液，因此可以防止包含於農藥液中之顆粒狀的農藥 被沈澱於積存槽1的底部，且可以使散佈於秧苗上的農藥 液之濃度保持均一。 又’於上述之實施形態中，散佈器7雖然爲具備了一 邊搖動，一邊散佈農藥液之散佈噴嘴1 1者，但是本發明 不限於此’若是可將一定量的農藥液散佈於被置放在秧苗 置放台S的秧苗上者亦可。例如，即使是具備呈放射狀地 散佈農藥液的散佈噴嘴者亦可，或是將農藥液由秧苗置放 台S的上方呈間歇性滴落者亦可。 又，雖然配合秧苗置放台S之條數而設置了多個散佈 -17- (15) (15)200400001 器7 ’但是本發明不限於此，例如，對於秧苗置放台S之 條數而言，僅設置1個散佈器亦可。於該情況下，設置多 個散佈農藥液之散佈噴嘴於1個散佈器上即可。 再者’雖然配合切換使用在插秧作業之秧苗置放台S 的條數之切換開關的數量而設置了多個電磁閥8，但是例 如配合秧苗置放台S的條數而設置多個電磁閥8亦可。 又，軟管9雖然由橡膠所構成的，但是本發明不限於 此，例如爲金屬製的導管亦可。 再者，動作契機部2 1雖然由被安裝於桿狀型材24上 之金屬製的螺栓2 5所構成的，但是本發明不限於此，若 是使近接開關22可利用磁力線作用加以檢測者亦可。 又，例如於桿狀型材24之溝部24 a的底面上形成多 個突起部代替多個螺栓2 5，並將設置在插秧機本體Μ上 之於桿狀型材24溝部24 a的底面上行進之滾軸、及每當 滾軸越過突起部時，使散佈機構2動作之開關來代替近接 開關22亦可。 再者，所使用的農藥液雖然爲溶解於水中之顆粒狀農 藥，但是本發明不限於此，液體狀的農藥液亦可。又，不 限於病蟲害驅除用的農藥液，若是爲散佈於秧苗上的流體 皆可，例如液體狀的肥料亦可。 以上，雖然針對本發明之實施形態，參照圖面加以說 明，但是具體的構造不限於該實施形態，亦包括了不脫離 本發明之宗旨範圍下的設計變更等。 -18- (16) (16)200400001 發明效果 如上述說明所示，若是根據申請專利範圔第1項之發 明的話，由於將散佈農藥·肥料等流體之散佈機構裝載於 插秧機上’可以與插秧作業並行，散佈流體於秧苗上，因 此可以圖得農作業的工作量削減，且可以減輕農業從事者 之體力負擔。 又，若是根據申請專利範圍第2項之發明的話，由於 散佈機構與利用插秧機之插秧動作同步，呈間歇性地進行 流體散佈，因此無論插秧速度，皆可散佈一定量的流體於 秧苗上。 又，若是根據申請專利範圍第3項之發明的話，由於 散佈動作控制機構爲根據秧苗置放台的往返動作而動作， 因此無論插秧速度，可以利用散佈機構將所寄望量的流體 散佈於秧苗上。 又，若是根據申請專利範圍第4項之發明的話，由於 每當近接開關檢測出動作契機部接近時，將其輸出作爲契 機而使散佈機構動作，因此可以利用散佈機構將所寄望量 的流體散佈於秧苗上。 又，若是根據申請專利範圍第5項之發明的話’由於 根據散佈動作控制機構之電磁閥的開/關被控制著’因此 可以與插秧動作同步，呈間歇性地由散佈器散佈流體。 又，若是根據申請專利範圍第6項之發明的話’由於 流體係利用暫存容器內之壓力由散佈器朝外方散佈’因此 與供給泵之脈動無關，可以利用安疋的壓力散佈流體’並 -19 - (17) (17)200400001 將流體散佈至秧苗置放台所寄望的位置。 又，若是根據申請專利範圍第7項之發明的話’藉由 搖動散佈噴嘴，利用一次的散佈動作，使流體散佈至廣泛 範圍。 又，若是根據申請專利範圍第8項之發明的話’藉由 設置壓力調整閥，可以使暫存容器內的壓力不會上升過剩 ，而防止暫存容器的損壞。 又，由於利用供給泵及循環手段，攪拌積存部內的流 體，因此可以防止包含在積存部內之流體中的農藥•肥料 之有效成份偏差，且可以使散佈於秧苗上之流體濃度保持 於一定。 又，由於利用供給泵及壓力調整閥，使暫存容器內之 壓力保持於一定，因此電磁閥在開啓時，由散佈器所散佈 之流體的流量維持一定，而可以輕易地將所寄望量的流體 散佈於泱苗上。 【圖式簡單說明】 第1圖係爲顯示關於本發明之一實施形態之插秧機裝 載型流體散佈裝置的槪略構成圖。 第2圖係顯示於第1圖之插秧機裝載型流體散佈裝置 中，散佈機構之槪略構成圖。 第3圖係顯示於第1圖之插秧機裝載型流體散佈裝置 中，散佈器之平面圖。 第4圖係顯示於第1圖之插秧機裝載型流體散佈裝置 -20- (18) (18)200400001 中，散佈器之側面圖。 第5圖係顯示於第1圖之插秧機裝載型流體散佈裝置 中，散佈動作控制機構之立體圖。 第6圖係顯示於第1圖之插秧機裝載型流體散佈裝置 中，散佈農藥液之秧苗置放台的散佈領域之槪略圖。 【主要元件對照表】 1 積存槽（積存部） 2 散佈機構 3 供給泵 4 散佈動作控制機構 6 暫存室（暫存容器） 7 散佈器 8 電磁閥 11 散佈噴嘴 12 擺動機構 21 動作契機部 22 近接開關 23 控制部 3 1 壓力調整閥 32 軟管（循環手段） Μ 插秧機本體 5 秧苗置放台 -21 -200400001 Π) Description of the invention [Technical field to which the invention belongs] The present invention relates to a rice transplanter-loading fluid distribution device that is mounted on a rice transplanter and in parallel with the rice transplanting operation and distributes fluids such as pesticides and fertilizers [prior art] In the rice planting operation, it is common to see the following procedure from the germination of seedlings to the transplanting of paddy fields. First, in the box where the seedbed is installed, the seeds are germinated after being sown, and cultivated to a certain size. Among them, the box used is called a nursery box, and is made according to a certain specification. Secondly, the seedlings of a certain size cultivated by the seedling box are placed on a rice transplanter and then transplanted in the paddy field. However, before the seedlings are planted in the paddy field, the granular pesticides used to dispel disease and pests are spread on the roots of the seedlings. Conventionally, this pesticide dispersion is disclosed in, for example, Japanese Unexamined Patent Publication No. 8-2 8 1 157, and is carried out before placing a seedling in a rice transplanter and before using a spreader. [Summary of the Invention] Problems to be Solved by the Invention However, in recent years, with the aging of agricultural workers, there has been a distancing of severe agricultural operations. Therefore, it is desired to reduce the workload of agricultural operations, although only slightly. However, in the above-mentioned conventional technology, since the pesticides were spread in the state of -4-(2) (2) 200400001 in the nursery box, the seedlings were placed on the rice transplanter and then transplanted in the paddy field. The physical burden of agricultural workers can cause great problems. The present invention has been made in view of the above circumstances, and an object thereof is to provide a rice transplanter-mounted fluid spreading device that spreads fluids such as pesticides and fertilizers on seedlings in parallel with rice transplanting operations, thereby reducing the amount of agricultural work. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention proposes the following means. The invention of the first scope of the patent application is directed to transplanting rice which is mounted on a rice transplanter and disperses fluid such as pesticides and fertilizers. The machine-mounted fluid distribution device includes a reservoir for storing the fluid, a distribution mechanism for distributing the fluid to a seedling placed on the rice transplanter, and supplying the fluid from the reservoir to the reservoir. Supply pump for dispersing mechanism. According to the present invention, the fluid flow system of the rice planter-loading type fluid spreading device is supplied to the spreading mechanism from the accumulation unit by the supply chestnut, and then the spreading mechanism is used to spread it on the rice transplanter. seedling. Therefore, in parallel with the transplanting operation, fluids such as pesticides and fertilizers can be distributed on the seedlings to reduce the workload of agricultural operations. In addition, the invention according to the second patent application scope is a rice planter-mounted fluid spreading device described in the first patent application scope, and is provided with a function of synchronizing the fluid distribution by the spreading mechanism and the rice transplanting operation of the rice transplanter. , It is an intermittent motion control mechanism. (3) (3) 200400001 According to the rice planter-mounted fluid spreading device according to the present invention, since the spreading mechanism is synchronized with the transplanting operation of the rice transplanter, the fluid is spread intermittently, so it can be spread regardless of the speed of transplant A certain amount of fluid is on the seedlings. In other words, for example, when the transplanting speed is slow, the time interval for spreading the fluid is made longer according to the spreading operation control mechanism, and when the transplanting speed is high, the time interval for spreading the fluid can be shortened to make the spreading The amount of fluid spread on the seedlings is maintained at a certain amount. < 1 In addition, the invention in the third aspect of the patent application belongs to the rice planter-mounted fluid spreading device described in the second aspect of the patent application, and the aforementioned spreading operation control mechanism is based on the The back-and-forth movement of the seedling placing platform is further performed. In the case of the rice planter-loaded fluid spreading device according to the present invention, the spreading operation control mechanism is operated based on the reciprocating motion of the seedling placing table. Therefore, the back and forth movement of the seedling placement platform and the transplanting movement of the rice transplanter are synchronized. For example, when the transplanting movement becomes slow, the return movement of the seedling placement ® platform becomes slower. When the transplanting movement becomes faster, the seedling placement Taiwan's round-trip movements also became faster. Therefore, regardless of the speed of planting, the desired amount of fluid can be spread on the seedlings by the spreading mechanism. In addition, as for the invention in the fourth scope of the patent application, the invention relates to the rice-planter-loading type fluid spreading device described in the third scope of the patent-application scope, wherein the above-mentioned spreading motion control mechanism includes: The seedling placement platform moves back and forth with the seedling placement platform to become a turning point for the operation of the aforementioned dispersing mechanism, and the seedling placement platform is placed-6-(4) (4) 200400001 and installed On the rice transplanter main body, a proximity switch that detects an action opportunity part that moves in accordance with the reciprocating action of the seedling placement platform is detected, and the detection of the action opportunity part of the proximity switch is used as an opportunity to cause the dispersing mechanism to operate. Control department. According to the rice planter-mounted fluid dispersing device according to the present invention, the proximity switch detects the approach of the motion trigger part during the process of moving the motion trigger part and the seedling placement table back and forth, and detects each proximity switch. The output close to the activation opportunity part acts as an opportunity to actuate the dispersing mechanism. Therefore, the desired amount of fluid can be spread on the seedlings by the spreading mechanism. In addition, as for the invention in the scope of patent application No. 5, the invention relates to the rice-planter-loading type fluid dispersion device described in any one of the scope of patent applications No. 2 to 4, wherein the above-mentioned dispersion mechanism is provided with: at least one The spreader and at least one solenoid valve 'provided between the spreader and the aforementioned supply pump, and the opening / relationship of the solenoid valve are controlled by the aforementioned spreading motion control mechanism. According to the rice planter-mounted fluid spreading device according to the present invention, the opening / closing of the solenoid valve is controlled by the spreading operation control mechanism, so that the fluid can be intermittently spread by the spreader in synchronization with the transplanting operation. In addition, the invention of claim 6 is in the rice-planter-loading type fluid distribution device described in claim 5 in which the above-mentioned spreading mechanism is provided with: the supply pump and the solenoid valve And temporarily retain the temporary storage container for the fluid supplied by the aforementioned supply pump, and at least when the solenoid valve is closed, the temporary supply container is supplied by the aforementioned supply pump (5) (5) 200400001. The internal pressure will rise. According to the rice planter-loading type fluid dispersing device according to the present invention, at least when the solenoid valve is closed, the fluid is supplied from the supply pump to the temporary storage container, thereby increasing the pressure in the temporary storage container. When the solenoid valve is opened from this state, the fluid is dispersed outward from the diffuser by using the pressure in the temporary storage container. For this reason, it is possible to distribute the fluid using a stable pressure irrelevant to the pulsation of the feed pump, so that the fluid can be distributed to the desired position of the seedling placing table. Φ The invention of item 7 in the scope of patent application is the fluid-dispersing device of the rice transplanter loading type described in item 5 of the scope of patent application, and the above-mentioned spreading mechanism is provided with a spreading nozzle for spreading the fluid and shaking the spreading The oscillating mechanism of the nozzle, and the operation of the oscillating mechanism is controlled by the aforementioned dispersion operation control mechanism. According to the rice planter-mounted fluid spreading device according to the present invention, by spreading the spray nozzle with a swing mechanism, the fluid can be spread over a wide range in one spreading operation. · Regarding invention No. 8 in the scope of patent application, the invention relates to the rice-planter-loaded fluid dispersing device described in No. 6 in the scope of patent application, which is provided between the supply pump and the temporary storage container. The pressure in the storage container is maintained at a certain pressure regulating valve, and at least the circulation means for returning the fluid sucked by the supply pump to the reservoir is provided at least when the pressure regulating valve is closed. According to the rice planter-loading type fluid dispersing device according to the present invention, 'with the solenoid valve closed, the fluid is supplied by a supply pump at the same time as -8- (6) (6) 200400001 into the temporary storage container, and Increase the pressure in the temporary storage container. Furthermore, when the pressure in the temporary storage container reaches a predetermined threshold, the pressure regulating valve system will be closed to prevent the fluid from flowing into the temporary storage container. Therefore, it is possible to prevent the pressure in the temporary storage container from rising excessively and prevent damage to the temporary storage container. In addition, since the pressure in the temporary storage container can be kept constant by the supply pump and the pressure regulating valve, when the solenoid valve is opened, the flow rate of the fluid dispersed by the diffuser can be made constant, and the pressure can be easily adjusted. The desired amount of fluid is spread over the seedlings. When the pressure regulating valve is closed, the circulation means can be used to return the fluid sucked by the supply pump to the reservoir. In addition, even when the pressure regulating valve is open, when the average flow rate per unit time passing through the supply pump is larger than the average flow rate per unit time passing through the pressure regulating valve, the circulation means can be used. A part of the fluid sucked by the feed pump is returned to the accumulation section. In this way, for the accumulation part, when the fluid flows out and in, the flow in the accumulation part will occur, and the fluid in the accumulation part can be stirred. [Embodiment] Figs. 1 to 6 of the embodiment of the invention show one embodiment of the present invention, and the rice planter-mounted fluid spreading device (hereinafter, simply referred to as "spreading device") of this embodiment is a pesticide spreader Liquid seedlings placed on the seedling placement platform S of the rice transplanter. In addition, this pesticide solution is a solution in which a granular pesticide is dissolved in water at a predetermined concentration (7) (7) 200400001, and the purpose is to drive away pests and diseases. This spreading device is mounted on a rice transplanter and, as shown in FIG. 1, includes a storage tank (storage section) 1 for storing a pesticide liquid, and a spreading mechanism 2 for spreading a pesticide liquid in parallel with a rice transplanting operation, and a pesticide liquid The supply pump 3 supplied from the storage tank 1 to the spreading mechanism 2 and the supply pump 3 are operated in accordance with the return operation of the seedling placement table S, and the pesticide liquid spreading using the spreading mechanism 2 is synchronized with the transplanting operation, and the spreading is performed intermittently The operation control mechanism 4 is a power supply mechanism 5 for electric power for operation. The dispersing mechanism 2 is provided with: a temporary storage chamber (temporary storage container) 6 for temporarily retaining the pesticide liquid supplied by the supply pump; and a plurality of dispensers 7 for spraying the pesticide liquid toward the lower end of the seedling placement table S. And a plurality of solenoid valves 8 provided at the lower end of the temporary storage chamber 6, and a plurality of hoses 9 connected to the solenoid valves 8 and the diffuser 7. The temporary storage chamber 6 is a container whose internal pressure rises when the pesticide liquid is supplied by the supply pump 3, and the solenoid valve 8 is opened to make the pesticide liquid use the pressure in the temporary storage chamber 6 to be dispensed by the dispenser. 7 was spread out. The spreader 7 is fixed to a support frame 10 provided behind the seedling placement table S, and the support frame 10 is fixed to a gear box B that moves the seedling picking claws P. The solenoid valve 8 is an on / off state controlled by the dispersing operation control mechanism 4. When the solenoid valve 8 is on, the pesticide liquid is supplied to the disperser 7 from the temporary storage chamber 6 through the hose 9. . The hose 9 is made of rubber which can be easily elastically deformed, and can be easily installed along various parts of the rice transplanter. -10- (8) (8) 200400001 As shown in Fig. 2, a plurality of spreaders 7 are provided in accordance with the number of seedling placement tables S (corresponding to the fields S 1 to S 5 in the figure). And they are arranged at equal intervals. A plurality of solenoid valves 8 are provided in accordance with the number of switching switches for switching the number of seedling placement tables S used in the transplanting operation. In this figure, the areas SI and S2 and the areas S4 and S5 where the seedlings are placed on the platform S are switched at the same time by a single switch. Therefore, the hose 9 connecting the one solenoid valve 8 and the two diffusers 7 and 7 is in a divergent state. As shown in Figs. 3 and 4, the spreader 7 is provided with a spreading nozzle 1 1 for spreading the pesticide solution supplied from the hose 9 toward the seedling placement table S, and a spreading nozzle 11 and a transplanting operation. The oscillating mechanism 12 and the oscillating mechanism 12 which are intermittently shaken in synchronization with each other, and the accommodating case 13 accommodating the oscillating mechanism 12. The spray nozzle 11 is a cylindrical tube formed into a slightly L-shape, and one end portion thereof is connected to the hose 9 and protrudes outward from the bottom portion 13 a of the storage case 13. The front end 1 1 b of the spray nozzle 11 is for spraying the pesticide liquid in a direction (Z direction) toward the seedling placement table. The swing mechanism 12 is fixed to the base end portion of the spray nozzle 11! The plate-like member 14 of ia and the spring 15 provided at one end portion in the longitudinal direction of the plate-like member 14 and the solenoid 16 provided at the other end are constituted by the spring 1 5 One end is fixed to the plate-like member 14, and the other end is fixed to the storage case 13. The solenoid 16 is composed of a solenoid body 6a and a drive shaft 16b ', and its operation is controlled by a dispersion operation control mechanism 4. Solenoid -11-(9) (9) 200400001 The main body 16a is fixed to the storage case 13. When the solenoid 16 is not operating, the driving shaft 16 b is extended by the tension of the spring 15. Furthermore, when the solenoid 16 is operated, the plate-shaped member 14 is connected with the spray nozzle by pulling the drive shaft 16 b into the interior of the solenoid body 16 a fixed on the storage case 13. The fixed position of the base end 1 1 a of 1 1 is the center rotation, and the spray nozzle 1 1 is shaken. The pesticide spray liquid 1 is provided in the middle of the hose 9 inserted into the storage case 13 to prevent the spray of the pesticide liquid 1 Check valve 1 7 with 1 side facing the hose 9 side. This check valve 17 is used to prevent air from being mixed into the hose 9 from the side of the spray nozzle 11 and to maintain a certain amount of the pesticide liquid sprayed by the sprayers 7. As shown in FIG. 1, the spreading operation control mechanism 4 is provided with: an operation opportunity unit 21 that is fixed to the seedling placement table S and serves as an opportunity for the spreading mechanism 2 to operate, and is fixed to the rice transplanter body M, In addition, the proximity switch 22 that detects the approach of the operation opportunity unit and the control unit 23 that causes the dispersing mechanism 2 to operate by using the detection of the proximity switch as an opportunity. As shown in FIG. 5, the operation opportunity part 21 is composed of a plurality of metal bolts 25 mounted on a rod-shaped section 24 that reciprocates with the seedling placement table S- 倂. The rod-shaped section 24 is connected with The moving direction of the seedling placing table S is installed inside the seedling placing table S in parallel. The rod-shaped profile 24 has a so-called tunnel shape having a cross-sectional shape, and is fixed to the beam portion S X and the like of the seedling placement table S with a belt 26 with the central groove portion 24 a facing forward. A plurality of bolts 25 -12- (10) (10) 200400001 are installed on a portion corresponding to the bottom surface of the groove portion 24 a, and are arranged at equal intervals on the moving width of the seedling placement table S. Small range. Proximity switch 24 is a detection unit 2 5 a which can be freely installed in the longitudinal direction of the rod-shaped section 24 and detects the movement of the bolts 2 due to the reciprocating action of the seedling placing table S by means of magnetic lines of force 2 2 a . The detection portion 2 2 a is fixed to the bottom face of the groove portion 24 a for the trolley 27 which is movably mounted along the rod-shaped section 24. With the trolley 27, two wheels 27a are mounted on both sides, and the wheels 27a are rotatably engaged with the rail portion 24b provided on the rod-shaped profile 24, and It can move freely in the longitudinal direction of the rod-shaped profile 24. The proximity switch 22 and the trolley 27 are relatively moved with respect to the rod-shaped section 24, and each time the detecting section 22a detects that the bolt 25 is approaching, it is turned on / off. The control unit 23 is provided with a main switch 2 3 a for operating the supply pump 3 and a switching switch 23 b for operating the solenoid valve 8 and the solenoid 16 as shown in FIG. 1. When the main switch 23 a is turned on, 'the power is supplied from the power supply mechanism 5 to the supply pump 3, and when the changeover switch 23 b is turned on, the solenoid valve 8 and The state where the solenoid 16 is operating. Between the supply pump 3 and the temporary storage chamber 6, a pressure regulating valve 31 is provided to keep the pressure in the temporary storage chamber 6 constant. For this reason, even if the supply pump 3 continues to operate, it is possible to prevent the pressure in the temporary storage chamber 6 from increasing excessively and damage the temporary storage chamber 6. In addition, between the supply pump 3 and the pressure regulating valve 31-13- (11) (11) 200400001, it is provided that the pesticide liquid sucked by the supply pump 3 but not supplied to the temporary storage chamber 6 is returned to the accumulation. The hose (circulation means) 32 used in the tank 1 will be described with reference to the use method of the spreading device constructed as described above. First, the seedling bundles grown in the seedling box are placed on the seedling placement table S, and the pesticide solution is poured into the storage tank 1. Next, the main switch 23a is turned on to cause the supply pump 3 to operate, and the changeover switch is turned to the ON state to cause the dispersing mechanism 2 to operate in accordance with the on / off of the proximity switch 22. At this time, the pesticide liquid is supplied into the temporary storage chamber 6 after passing through the supply pump 3 from the storage tank 1, so that the pressure in the temporary storage chamber 6 increases. Further, when the pressure in the temporary storage chamber 6 reaches a predetermined level, the pressure regulating valve 31 is closed and the supply of the pesticide liquid to the temporary storage chamber 6 is stopped. For this reason, the pesticide liquid sucked by the supply pump 3 passes through the hose 32 and then flows back to the storage tank 1. In addition, even when the pressure regulating valve 31 is opened, when the average flow rate per unit time passing through the supply pump 3 is larger than the average flow rate per unit time passing through the pressure regulating valve 31, the supply pump 3 is used. A part of the aspirated pesticide liquid will also flow back to the storage tank i through the hose 3 2. In this way, for the storage tank 1, when the pesticide liquid flows out and flows in, it will be generated in the storage tank 1 The pesticide liquid in the storage tank 1 can be stirred while flowing. In addition, when seedling transplanting using a rice transplanter is started, as shown in FIG. 6, the seedling placing platform S is synchronized with the seedling picking operation using the picking claws. 14- (12) (12) 200400001 '朝Move sideways (X direction). Among them, the seedling picking area sb, which is picked once by the picking claw p, is each of the picking areas in the seedling placing table s surrounded by the dotted line shown in the figure, and located at the lower end Sa of the seedling placing table S. The seedlings of S b are sequentially picked up by the picking claw P in accordance with the movement of the seedling placement platform S. After that, when all the narrow seedlings at the lower end portion S a are picked up, the seedling bundle will slide to the lower end portion Sa of the seedling placing table S, and the seedling placing table S will be used while moving in the Y direction. The picking claw p sequentially picks up the seedlings. _ At the time of the above-mentioned rice transplanting operation, the rod-shaped section 24 and the seedling placement table S- 倂 are moved sideways, and each time a plurality of bolts 25 mounted on the rod-shaped section 24 are passed through the proximity switch 22 To make the proximity switch on / off intermittently. In addition, by synchronizing with the on / off of the proximity switch 22, the spraying of the pesticide liquid toward the seedlings by the spreading mechanism 2 is performed. In other words, when the non-contact switch 24 is turned on / off, the solenoid valve 8 is temporarily opened, so that the pesticide liquid is scattered from the spray nozzle 11 toward the seedling placement table S, and the drive shaft 16 of the solenoid 16 is caused. After one round motion®, shake the spray nozzle 1 1. At this time, irrespective of the pulsation of the supply pump 3, the pesticide liquid is sprayed from the spray nozzle 11 by using a constant pressure from the temporary storage chamber 6, so the spraying amount of the pesticide liquid can be kept constant. Furthermore, the pesticide liquid can be spread to a predetermined portion of the seedling placement table S corresponding to the range where the spreading nozzle 11 is shaken. Among them, as shown in FIG. 6, the predetermined area is divided into a plurality of collective distribution areas Sc1 to Sc4, which are divided into a plurality of collective distribution areas Sc1 to Sc4, which are located above the lower end portion Sa of the seedling placement table S. -15- (13) (13) 200400001 In addition, during the period when the seedling placement table S is moving in the X direction, the pesticide liquid is intermittently distributed every time the proximity switch 22 detects, so the pesticide liquid can be sequentially The ground is scattered from the collective distribution field Scl to the collective distribution field S c 4. The above-mentioned spraying of the pesticide liquid is also performed in the same manner as the seedling placement table S moves in the Y direction, and the pesticide liquid is sequentially distributed from the scatter area Sc4 to the scatter area Scl. In the case where the transplanting speed is changed according to the rice transplanter, the moving speed of the seedling placing table S is slowed down synchronously, so that the time interval detected by the bolt 25 of the proximity switch 22 is changed. Therefore, the time interval of the dispersion of the pesticide liquid using the spreading mechanism 2 synchronized with the on / off of the proximity switch 22 also changes. During the continuous transplanting operation using the rice transplanter, although the above-mentioned method can be used to intermittently disperse the pesticide liquid by the spreading mechanism 2, when the transplanting operation is stopped, the reciprocating movement of the seedling placing platform S stops, so The dispersing mechanism 2 is also stopped and the dispersing of the pesticide liquid is interrupted. As described above, according to the rice planter-mounted fluid spreading device, since the pesticide liquid is spread on the seedlings in parallel with the transplanting operation using the rice transplanter, it is possible to reduce the workload of agricultural operations and reduce the workload. The physical burden of agricultural workers. In addition, during the reciprocating movement of the operation opportunity unit 21 and the seedling placement table S- 倂, whenever the proximity switch 22 detects that the bolt 25 is approaching, the output is used as an opportunity to activate the solenoid valve 8 of the dispersing mechanism 2. Therefore, it is possible to synchronize the spreading mechanism 2 with the rice transplanting operation using the rice transplanter to perform the pesticide liquid dispersion intermittently -16- (14) (14) 200400001. Therefore, regardless of the speed of the transplanting operation, the spreading mechanism 2 can be used to spread the desired amount of the pesticide solution on the seedlings. In addition, by providing the pressure regulating valve 31, the pressure in the temporary storage chamber 6 does not increase excessively, and damage to the temporary storage chamber 6 can be prevented. In addition, the pressure in the temporary storage chamber 6 is kept constant by supplying the pump 3 and the pressure regulating valve 31. Since the solenoid valve 8 is opened, it has nothing to do with the pulsation of the supply pump 3, and the pesticide liquid uses the temporary storage The pressure in the chamber 6 is spread outward by the spreading nozzles 11, so that the flow rate of the pesticide liquid spread by the spreader 7 can be kept constant. Therefore, it is possible to easily disperse a certain amount of the pesticide solution to the desired position of the seedling placement table S. Furthermore, since the swinging mechanism 12 shakes the spray nozzle 11 during the spraying of the pesticide liquid, the pesticide liquid can be spread on a wide range of the seedling placement table S by a single spreading operation. In addition, since the pesticide liquid in the storage tank 1 is stirred by the supply pump 3 and the hose 32, it is possible to prevent the granular pesticide contained in the pesticide liquid from being settled on the bottom of the storage tank 1, and it is possible to spread it on the seedlings. The concentration of the pesticide solution on the top remains uniform. Also, in the above-mentioned embodiment, although the spreader 7 is provided with a spray nozzle 11 for spreading the pesticide liquid while shaking, the present invention is not limited to this. If a certain amount of the pesticide liquid can be distributed to the place The seedlings on the seedling stand S may be used. For example, it may be a person having a spray nozzle for spraying the pesticide liquid radially, or a person dropping the pesticide liquid intermittently from the top of the seedling table S. In addition, although a plurality of distributions are provided in accordance with the number of seedling placement tables S-17- (15) (15) 200400001 device 7 ', the present invention is not limited to this. For example, for the number of seedling placement tables S, In other words, only one diffuser may be provided. In this case, a plurality of spray nozzles for spraying the pesticide liquid may be provided on one sprayer. Furthermore, although a plurality of solenoid valves 8 are provided in accordance with the number of switching switches for switching the number of seedling placement tables S used in the transplanting operation, for example, a plurality of solenoid valves are provided in accordance with the number of seedling placement tables S. 8 is also available. The hose 9 is made of rubber, but the present invention is not limited to this. For example, it may be a metal catheter. In addition, although the operation opportunity part 21 is composed of metal bolts 25 that are mounted on the rod-shaped section 24, the present invention is not limited to this. The proximity switch 22 may be detected by the action of magnetic lines of force. . Further, for example, a plurality of protrusions are formed on the bottom surface of the groove portion 24 a of the rod-shaped profile 24 instead of the plurality of bolts 25, and the bottom surface of the groove portion 24 a of the rod-shaped profile 24 provided on the rice transplanter body M is advanced. The roller and the switch for operating the spreading mechanism 2 may be used instead of the proximity switch 22 whenever the roller passes over the protrusion. Furthermore, although the pesticide solution used is a granular pesticide dissolved in water, the present invention is not limited to this, and a liquid pesticide solution may be used. In addition, it is not limited to a pesticide solution for extermination of diseases and insect pests, and any fluid may be used as long as it is a liquid dispersed on the seedlings, for example, a liquid fertilizer may be used. Although the embodiment of the present invention has been described above with reference to the drawings, the specific structure is not limited to the embodiment, and also includes design changes without departing from the scope of the present invention. -18- (16) (16) 200400001 As shown in the above description, if it is the invention according to item 1 of the patent application, since the pesticide-fertilizer fluid distribution mechanism is mounted on the rice transplanter, it can be used with The transplanting operation is carried out in parallel, and the fluid is spread on the seedlings. Therefore, the workload of the agricultural operation can be reduced, and the physical burden of the agricultural practitioner can be reduced. In addition, according to the invention according to item 2 of the patent application range, since the spreading mechanism performs the fluid distribution intermittently in synchronization with the transplanting operation using a rice transplanter, a certain amount of fluid can be spread on the seedlings regardless of the speed of the transplanting. In addition, if the invention is based on the third item of the patent application scope, the spreading operation control mechanism operates in accordance with the reciprocating motion of the seedling placing table. Therefore, the spreading mechanism can be used to spread the desired amount of fluid to the seedlings regardless of the transplanting speed on. In addition, if the invention is based on the fourth item of the patent application scope, each time the proximity switch detects that the operating opportunity is approaching, the output is used as an opportunity to operate the dispersing mechanism, so the dispersing mechanism can be used to transfer the desired amount of fluid. Spread on seedlings. In addition, if it is the invention according to item 5 of the scope of patent application, ‘the solenoid valve is controlled to be opened / closed by the spreading operation control mechanism’, it can synchronize with the transplanting operation and intermittently spread the fluid from the spreader. In addition, if it is the invention according to item 6 of the scope of the patent application, "The flow system uses the pressure in the temporary storage container to spread from the diffuser to the outside." Therefore, it is not related to the pulsation of the supply pump. -19-(17) (17) 200400001 Disperse the fluid to the desired position on the seedling placement table. Further, if it is the invention according to item 7 of the scope of patent application ', the fluid is spread to a wide range by a single spreading operation by shaking the spreading nozzle. Moreover, if it is the invention according to item 8 of the scope of patent application ', by providing a pressure regulating valve, it is possible to prevent the pressure in the temporary storage container from increasing excessively and prevent damage to the temporary storage container. In addition, the supply pump and circulation means are used to agitate the fluid in the reservoir, so that the effective components of pesticides and fertilizers contained in the fluid contained in the reservoir can be prevented from varying, and the concentration of the fluid dispersed in the seedlings can be kept constant. In addition, the supply pump and pressure regulating valve are used to keep the pressure in the temporary storage container constant. Therefore, when the solenoid valve is opened, the flow rate of the fluid dispersed by the diffuser is kept constant, and the desired amount can be easily set. The fluid is scattered on the seedlings. [Brief Description of the Drawings] FIG. 1 is a schematic configuration diagram showing a rice planter-mounted fluid spreading device according to an embodiment of the present invention. Fig. 2 is a schematic diagram showing the structure of a spreading mechanism in the rice planter-loaded fluid spreading device of Fig. 1; Fig. 3 is a plan view showing the spreader in the rice planter-loaded fluid spreading device of Fig. 1; Fig. 4 is a side view of the spreader shown in Fig. 1 in the rice-planter-loaded fluid spreading device -20- (18) (18) 200400001. Fig. 5 is a perspective view showing a spreading motion control mechanism in the rice planter-loaded fluid spreading device of Fig. 1; Fig. 6 is a schematic diagram showing the field of distribution of the seedling placement stand for spraying the pesticide liquid in the rice planter-loaded fluid spreading device of Fig. 1. [Comparison table of main components] 1 Storage tank (storage unit) 2 Dispersion mechanism 3 Supply pump 4 Dispersion operation control mechanism 6 Temporary chamber (temporary container) 7 Dispenser 8 Solenoid valve 11 Dispersion nozzle 12 Swing mechanism 21 Operation opportunity unit 22 Proximity switch 23 Control unit 3 1 Pressure regulating valve 32 Hose (recirculation means) Μ Transplanter body 5 Seedling placement table -21-