【０００１】
【発明の属する技術分野】
本発明は、作物を積載して運搬する作物運搬車の技術分野に属する。
【０００２】
【従来の技術】
従来、圃場内で収穫された作物を運搬する場合、収穫機に設けた作物積載部に収穫した作物を積載し、圃場端に到ったとき、トラック等に積み替えるようにしていた。しかし、圃場端まで作物を積載できるように作物積載部を大きく設けると収穫機が大型のものとなり、また、そのため、圃場内で小回りがきかず、作業を能率的に行なえない。そこで、特許文献１記載のような自走する運搬車を圃場に入れて、この運搬車の荷台上に圃場内で収穫された作物を積載して運搬するようにすると、収穫機に大きな作物積載部を設ける必要がなくなり、収穫機の小型化が図れて収穫機の取り回しが容易になって収穫作業を能率的に行なえるようになる。
【０００３】
【特許文献１】特開２０００−１２７７７３号公報
【０００４】
【発明が解決しようとする課題】
特許文献１記載のような自走する運搬車により圃場内で収穫された作物を運搬するようにすると、収穫機の小型化が図れ、また、収穫機の取り回しが容易になって収穫作業の能率向上が図れるようになる。しかし、運搬車からトラックへ作物を積み替えるときには、運搬車の荷台上に積載された作物をいちいち取り上げてトラックの荷台上に持っていかなければならず、ここでの作物の積み替えが迅速に行えない。
【０００５】
そこで、本発明は、収穫機の大型化を回避し、また、圃場内で収穫された作物の運搬も容易に行え、更に、運搬車からトラックへの作物の積み替えも容易に行えるようにすることを課題とする。
【０００６】
【課題を解決するための手段】
本発明は、上記課題を解決するために、以下の手段を講じるものである。
請求項１記載の発明は、上部に荷台を有する自走可能な運搬車と、該運搬車の荷台に積降自在の運搬台車とで構成したことを特徴とする作物運搬車としたものである。
【０００７】
請求項２記載の発明は、前記運搬台車は、作物を積載する荷台と台車移動用の車輪とを備えるとともに、荷台の左右両側部には側面視略門型状の枠体を設け、該左右の枠体の間の荷台上方空間を荷台の少なくとも前後一側外方に向けて開放する開放部を形成したことを特徴とする作物運搬車としたものである。
【０００８】
請求項３記載の発明は、前記運搬台車の前記開放部を形成している側の左右の枠体のコーナー部に傾斜部を形成したことを特徴とする請求項２記載の作物運搬車としたものである。
請求項４記載の発明は、前記運搬台車に台車移動用車輪のブレーキ機構を設けるとともに、該ブレーキ機構のブレーキ操作を行う人為操作具を枠体の前記傾斜部に取付けたことを特徴とする請求項３記載の作物運搬車としたものである。
【０００９】
請求項５記載の発明は、前記運搬台車の荷台の中央部を荷台の周囲部より低く形成したことを特徴とする請求項２記載の作物運搬車としたものである。
請求項６記載の発明は、前記運搬台車の左右の枠体を荷台上に折畳み可能に構成したことを特徴とする請求項２記載の作物運搬車としたものである。
【００１０】
【作用】
上記構成とした作物運搬車は、運搬車の荷台上に運搬台車を積載した状態で圃場内に入り、収穫機が収穫した作物を運搬台車上に積載して移動する。満載状態になってトラックに作物を積み替えるときには、運搬台車を運搬車の荷台上からトッラクの荷台上に移動させて行う。
【００１１】
【発明の効果】
請求項１記載の発明は、収穫機に大きな作物積載部を設けなくてよいので、収穫機の大型化を回避し、且つ、収穫された作物の運搬が容易に行えて、能率良く収穫作業が行なえる。しかも、積載した作物を作物運搬車からトラックへ積み替えるときには、運搬車の荷台上からトラックの荷台上に運搬台車を移動させるだけで良いので、作物の積み替え作業も迅速且つ容易に行え、作業能率の向上が図れる。
【００１２】
請求項２記載の発明は、運搬台車の荷台上に作物を積み上げても、荷台の左右両側部に設けた枠体によって荷台上の作物が支持されて荷台の外に作物が転げ落ちない。また、荷台上に作物を積載するときは、左右の枠体の間の荷台上方空間を荷台の少なくとも前後一側外方に向けて開放する開放部が形成されているので、この開放部から作物を荷台上に入れられるので、荷台上への作物の積み込みも容易に行える。
【００１３】
請求項３記載の発明は、長い作物を荷台上に積載する場合に、開放部側に立つ作業者が手に持った作物を左右の枠体の外側から左右の枠体の間に作物を移動させて積み込むとき、枠体上側のコーナー部に傾斜部が形成されているので、枠体のコーナー部に作物が引っ掛かりにくく、荷台上への作物の積み込みが容易に行える。また、運搬台車をトラックの荷台に積降する場合に、作業者が傾斜部を掴んで運搬台車を容易に押し引きして移動できる。
【００１４】
請求項４記載の発明は、作物を満載した運搬台車を歩み板を利用してトラックの荷台に積降する場合に、ブレーキをかけながら安全に運搬台車を移動できる。
請求項５記載の発明は、前記運搬台車の荷台の中央部を荷台の周囲部より低く形成したので、幹刈りされたたばこなど中間部がかさばる作物を積載する場合に、多く積み上げても荷台中央部が高くなりにくく、多くの作物を安定した状態で荷台上に積載できる。
【００１５】
請求項６記載の発明は、運搬台車の左右の枠体を荷台上に折畳めるので、運搬台車自体の運搬や格納が効率的に行える。
【００１６】
【発明の実施の形態】
本発明の実施の一形態として、圃場に植生するたばこを幹刈り収穫する場合にあって、幹刈り収穫されたたばこを運搬する作物運搬車について以下に説明する。
【００１７】
まず、はじめに、圃場に植生するたばこを幹刈り収穫するたばこ幹刈り機について、以下に説明する。
たばこ幹刈り機は、図１〜４に示すように、左右一対の前輪１，１と左右一対の後輪２，２を備えて畝を跨いで自走する走行機体３を設け、該走行機体３の後部に歩行操縦用のハンドル４を設け、該歩行操縦用のハンドル４の前側で機体平面視で左右の車輪１，１，２，２の間に、たばこの幹Ｔを機体に対し後方に挟持搬送する挟持搬送装置５と該挟持搬送装置５により挟持搬送されるたばこの幹Ｔの基部側を切断する切断装置６を設け、前記挟持搬送装置５は、機体側面視で機体の前輪配置側から後輪配置側にかけて配置するとともに、挟持搬送装置５の挟持搬送終端部５Ｅが後輪前端位置より後側に位置するように設けた構成としている。また、前記歩行操縦用のハンドル４の左右両端部が左右の後輪２，２よりも左右方向内側に位置するように設けた構成としている。
【００１８】
走行機体３は、機体後部に第一エンジン７を設置し、該第一エンジン７の前側にミッションケース８を設けている。このミッションケース８の左右両側部に、下方にのびる第一走行伝動ケース９，９を装着し、この第一走行伝動ケース９，９の下部一側部に第二走行伝動ケース１０，１０を横軸心回りに回動可能に取付け、この第二走行伝動ケース１０，１０の先端側一側部に後輪車軸１１，１１を突出させてそれに後輪２，２を取付けている。後輪２，２は、第一エンジン７の動力がミッションケース８内の伝動機構と、第一走行伝動ケース９，９及び第二走行伝動ケース１０，１０内の伝動機構を経由して伝達され、駆動回転される構成となっている。
【００１９】
また、左右の後輪２，２と左右の前輪１，１は機体に対して上下動できる構成として、挟持搬送装置５と切断装置６を備えた幹刈作業部Ｗの高さを、畝Ｕの高さに対応して適宜修正できるように設けている。本例では、具体的に、後輪２，２を取付けた左右の第二走行伝動ケース１０，１０と昇降調節機構１１，１１とを連結し、昇降調節機構１１，１１の操作により第二走行伝動ケース１０，１０が回動して後輪２，２が上下する構成としている。具体的には、第二走行伝動ケース１０，１０の第一走行伝動ケース９，９への回動可能な取付け部に第一アーム１２，１２を設け、該第一アーム１２，１２の先端部と機体の左右に設けた支持フレーム４ｂ，４ｂとを伸縮ロッド１３，１３で連結した構成としている。伸縮ロッド１３，１３の伸縮動作は、人為操作具１１ａ，１１ａを操作することにより動作し、伸縮ロッド１３，１３が短くなるよう操作すると、第二走行伝動ケース１０，１０が上昇回動して後輪２，２が上昇し、伸縮ロッド１３，１３が長くなるよう操作すると、第二走行伝動ケース１０，１０が下降回動して後輪２，２が下降する。左右の後輪２，２を互いに異なる高さに設定すれば、圃場の左右方向の傾斜に対応して、挟持搬送装置５と切断装置６を備えた幹刈作業部Ｗの左右方向の姿勢を適宜修正することができる。なお、本例では、手動操作によって調整する機構としているが、機体の対地姿勢を検出するセンサと車輪を昇降駆動する油圧機構とを設けて自動調節する構成とすることもできる。
【００２０】
走行機体３の前部には、遊転輪で構成した左右の前輪１，１を機体に対して上下高さ調節可能に取付けている。本例では、後輪２，２の上下調節と連動して同じ方向に上下調節されるように左右同じ側の前輪と後輪とを連結し、幹刈作業部Ｗの上下高さを調節したときに前後方向の姿勢が大きく変動しないように設けている。具体的には、第二走行伝動ケース１０，１０の第一走行伝動ケース９，９への回動可能な取付け部に、前記第一アーム１２，１２と一体的に回動する第二アーム１４，１４を設け、左右の前輪１，１の前輪車軸１ａ，１ａを設けた前輪支持部材１ｂ，１ｂの機体フレームに対し回動自在に取付けている取付け部に、前輪支持部材１ｂ，１ｂと一体的に回動する連動アーム１５ａ，１５ａを設け、該連動アーム１５ａ，１５ａの先端部と前記第二アーム１４，１４の先端部とを連結ロッド１５ｂ，１５ｂで連結し、第二走行伝動ケース１０，１０と前輪支持部材１ｂ，１ｂとが同じ方向に連動して上下動するようになっている。
【００２１】
なお、前輪支持部材１ｂ，１ｂを伸縮調節可能に設けているので、前後方向に傾斜する圃場を作業走行したときに、垂直方向に向ってのびる幹を水平に切断できるように幹刈作業部Ｗの前後姿勢を調節することが可能となる。また、前後の車輪を左右位置調節可能に設けることにより、畝幅の広狭に対応して車輪の接地位置を適正に調節可能となる。
【００２２】
走行機体３には、前輪１側から後輪２側にわたって前後にのびる左右のフレーム１６，１６を設けている。該フレーム１６，１６に対して、挟持搬送装置５と切断装置６を備えた幹刈作業部Ｗが着脱可能に装着された構成としている。また、左右のフレーム１６，１６の各前部に、側面視で上面部が後上がり傾斜に平面視で前側ほど幅狭く形成した分草体１７，１７を装着し、機体進行に伴い前方から挟持搬送装置５の挟持個所に入ってくる作物の下側の葉を持上げて、下側の葉を挟持搬送装置５が挟持しないように設けている。フレーム１６，１６の後部は、ミッションケース８の下部と第一走行伝動ケース９の内側部とに取付部材を介して取付けて固定している。また、ハンドル４の支持フレーム４ａは下方に屈曲して前記左右の支持フレーム４ｂ、４ｂに固着している。
【００２３】
幹刈作業部Ｗは、本例では、以下のように構成している。挟持搬送装置５は、走行機体３を駆動する前記第一エンジン７の動力によって駆動する構成としている。従って、挟持搬送装置５を走行速に比例して回転駆動でき、刈取りする幹を直立姿勢を維持しながら挟持搬送して、切断装置６による幹切断が適確な姿勢で行われ、良好に幹刈り作業が行える。一方、走行機体３の駆動負荷と挟持搬送装置５の駆動負荷よりも格段に大きい駆動負荷が生じる切断装置６は、前記第一エンジン７とは別に搭載した第二エンジン１８の動力によって駆動する構成としている。これにより、切断時の過負荷によって、切断装置６とともに走行機体３と挟持搬送装置５とが停止して刈取不能状態となる事態が生じにくくなり、能率良く刈取作業が行える。なお、単一のエンジンで、走行機体と幹刈作業部全体を駆動する構成として、切断時の過負荷でできるだけ作業中断しないようにするため馬力が大きいものにすると、比較的駆動負荷が小さい走行機体と挟持搬送装置とを余分な馬力で駆動することになり、結果として、馬力ロスが生じるが、上記の駆動構成とすることにより、馬力ロスが少なく抑えながら馬力アップが図れる。
【００２４】
更に具体的な構成を説明する。前記フレーム１６の左右一側（図示では左側）前部に第二エンジン１８を搭載し、また、円盤状の切断刃で構成した構成した切断装置６を、前記フレーム１６に装着した切断刃駆動ケース１９から上方に突出させた駆動軸に取り付けている。切断刃駆動ケース１９の入力軸にはプーリ１９ａを取付け、このプーリ１９ａと第二エンジン１８の出力軸に取付けたプーリ１８ａとに伝動ベルト２０を巻き掛けて、第二エンジン１８の動力が切断刃駆動ケース１９内に伝動して前記駆動軸が駆動回転され切断装置６が回転する構成としている。また、切断装置６の後側には、収穫後にたばこの幹を吊下げるときに引っ掛けるための溝を形成する溝切り装置２１を設けている。この溝切り装置２１は、上下に２枚溝巾に対応した上下間隔で円盤状の切断刃を前記フレーム１６に装着した溝切り刃駆動ケース２２から上方に右側傾斜状態で突出させた駆動軸に取り付けている。溝切り刃駆動ケース２２の入力軸にはプーリ２２ａを取付け、このプーリ２２ａと切断刃駆動ケース１９の入力軸に取付けたプーリ１９ｂとに伝動ベルト２３を巻き掛けて、第二エンジン１８の動力が溝切り刃駆動ケース２２内に伝動して前記駆動軸が駆動回転され溝切り装置２１が回転する構成としている。なお、切断装置６により切断されて挟持搬送装置５により挟持搬送される幹の下部を更に設定寸法短くするための第二切断装置を切断装置６より後側或は切断装置６と前後方向同位置に設けると、残幹を短く切断するとともに、刈り取ったたばこの幹の下部が、挟持搬送装置５の搬送中或は搬送終端部から後方に排出されるときに引っかかりにくくすることができる。
【００２５】
挟持搬送装置５は、左右に且つ上下二段に設けた挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒが、機体の左右中央側部位が機体後方に移動するように駆動回転される構成としたものである。左右の挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒは、機体の左右中央側において、たばこの幹を適宜挟持し得るよう適宜設定した左右間隔をあけて配置されている。なお、本例では、挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒのチェン連結プレートが回転外周方向に山形に突出する突起を有するものに形成しており、機体の左右中央側において左右の挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒのチェン連結プレートの上記突起がたばこの幹を適確に挟持して搬送するようになっている。
【００２６】
挟持搬送装置５の左右の上下挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒは、前記左右のフレーム１６，１６の前部に設けた左右の縦軸２６ａ，２６ａに回転自在に取付けた従動スプロケット２６，２６；２６，２６と、前記左右のフレーム１６，１６の後部に設けた左右の挟持搬送駆動ケース２７，２７から上方に突出させた駆動軸２８ａ，２８ａに取付けた駆動スプロケット２８，２８；２８，２８とに巻き掛け、更に、テンションローラ２９，２９；２９，２９を挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒの各周回内側から周回外側に押圧するように接当させて設け、また、左右挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒの左右中央側は、たばこの幹を挟持し搬送するときにチェンが左右外方に逃げないように且つ上下にずれないように支持するチェン支持部材３０，３０；３０，３０をチェンの周回内側から接当するように設けている。左右の挟持搬送駆動ケース２７，２７には、ミッションケース８から取出した動力を伝動手段を介して伝動している。
【００２７】
挟持搬送装置５の挟持搬送終端部５Ｅの下方には、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔの下端部を下方から支持し得る受け台３１を配置している。これにより、作業者が、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔを取上げるとき、幹Ｔを掴むタイミングが遅れても、受け台３１で幹Ｔの下端部が支持されるので、幹Ｔが落下してしまうことがなくたばこの幹Ｔの取上げが適確に行え、高速での作業も良好に行える。なお、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔの下端部が受け台３１により下方から支持され得るには、受け台３１の高さを、切断装置６の切断高さに対し同高さ或はそれよりも低く設定する必要がある。前記第二切断装置を装備した場合は、第二切断装置の切断高さに対し同高さ或はそれよりも低く設定する。
【００２８】
また、この受け台３１は、挟持搬送装置５の挟持搬送終端部５Ｅの下方から後方に延設するとともに、挟持搬送装置５の後端部左右両外側部より左右外方に延設している。これにより、作業者が、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔを取上げるとき、幹Ｔの下端部を受け台３１上を滑らせるようにして機体側方に移動させてたばこの幹Ｔを取上げることができるので、重量の重いたばこを繰り返し取上げて圃場に置いていく作業が楽に行えるようになって、労力軽減を図るものとなる。
【００２９】
更に、左右外方に延設した受け台３１の左右端は、左右の後輪２，２より内側に位置するように配置しているので、作業者が、後輪の後側よりに立って挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔを取上げようとして、手を挟持搬送終端部５Ｅに向ってのばすときに体が機体側に寄っても受け台３１が邪魔にならず容易にたばこの幹Ｔを取上げられて作業が能率良く行える。
【００３０】
挟持搬送装置５の後端後方には、左右両外方に通じる通路Ｓを形成している。作業者は、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔを掴んで当該通路Ｓを通過させて左右外方に引き出せるので、刈取られたたばこの幹Ｔの取出しが容易に行え、作業が能率良く行える。具体的には、挟持搬送装置５の後端個所と、受け台３１の後端部からカバー３２が上方に立ち上がる個所との前後間の巾をたばこの幹Ｔが起立姿勢で左右方向に通過可能な巾を有するように設ける。また、この間隔部において受け台３１の前後巾も同様な巾を少なくとも有するものとする。なお、上記の前後間の巾は、たばこの幹Ｔ２本相当分（具体的には７〜１０ｃｍ）の巾とすると、一層、たばこの幹Ｔの左右外方への引き出しが容易となる。
【００３１】
受け台３１の後側には、ミッションケース８等の伝動部の上方を覆うカバー３２を設けている。また、挟持搬送装置５の上方及び左右両側方は、作業部カバー３３，３３で覆っている。第二エンジン１８の上方と左右外側方及び前方を第二エンジンカバー３４で覆っている。
【００３２】
ミッションケース８から挟持搬送装置５の後部に設けた駆動軸２８ａ，２８ａへの伝動構成は以下のように構成している。即ち、ミッションケース８の受け台３１上面より上側個所から取出した動力を、受け台３１より下方に伝動する第一伝動部３５と、該下方伝動部３５の下部から受け台３１の下方を通過して前側に伝動する第二伝動部３６を介して挟持搬送装置５の後部に設けた駆動軸２８ａ，２８ａに伝動する構成としている。また、前記第一伝動部３５と前記第二伝動部３６を、挟持搬送装置５の挟持個所（左右の挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒの対向部）に対して機体左右方向において左右両側方に設け、ミッションケース８の受け台３１上面より上側個所から取出した動力を、左右それぞれの第一伝動部３５と第二伝動部３６を経由して挟持搬送装置５の左右一対の無端体（左右の挟持搬送チェン２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒ）を駆動する左右の駆動軸２８ａ，２８ａに伝動する構成としている。更にまた、第一伝動部３５の左右間隔を上側が狭く下側が広くなるように設けている。
【００３３】
更に、本例の具体構成を説明すると、まず、ミッションケース８の受け台３１上面より上側個所から伝動軸３７を取出して第一伝動部３５の上部に導入させている。第一伝動部３５の上部に導入された動力は、左右に配置し互いに噛み合う歯車Ｇ１，Ｇ１の一方の軸を駆動回転し、該歯車Ｇ１，Ｇ１の噛み合いにより他方側の歯車の軸を逆回転して左右に動力を分配する。左右の歯車Ｇ１，Ｇ１の軸にはそれぞれスプロケットＳ１，Ｓ１を取り付け、そのスプロケットＳ１，Ｓ１と、第一伝動部３５の下部に設けたスプロケットＳ２，Ｓ２とに伝動チェンＣ１，Ｃ１を巻き掛けて、これにより、第一伝動部３５の上部で左右に分かれた回転動力は左右の第一伝動部３５の下部に伝達される。そして、左右の第一伝動部３５の下部に設けた各スプロケットＳ２，Ｓ２の軸を前方に突出延長させた第二伝動部３６，３６が挟持搬送駆動ケース２７，２７の入力軸にユニバーサルジョイントを介して連結して、挟持搬送駆動ケース２７，２７内に伝動し、挟持搬送装置５の後部に設けた駆動軸２８ａ，２８ａを駆動する。
【００３４】
上記のように構成したたばこ幹刈り機を用いてたばこの幹刈り作業を行う場合、このたばこ幹刈り機は、図５に示すように、左右一対の前輪１，１と左右一対の後輪２，２を備えた走行機体３が畝Ｕを跨いで自走し、挟持搬送装置５がたばこの幹Ｔを機体に対し後方に挟持搬送し、また、挟持搬送されるたばこの幹Ｔの基部側を切断装置６が切断する。幹が切断されたたばこは、後輪前端位置より後側に位置する挟持搬送装置５の挟持搬送終端部５Ｅから排出される。作業者は、既に幹刈りされた畝Ｕ’と作業中の畝Ｕとの間の谷部Ｖを歩行し、且つ、左右一方側の後輪２の後方寄りを歩行しながら、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔを片手で掴んで取上げ、その後、他方側の手に持ち替えて、たばこ幹刈り機の側方を自走させている作物運搬車に積載された運搬台車の荷台上に置いていく。圃場端まで作業が進み、次の畝に移って幹刈り作業を行うときには、作業者は、機体後方に移動してハンドル４を手でもって機体を操縦する。機体を旋回させるときには、ハンドル４を押し下げると、前輪１，１を上昇させて左右の後輪２，２のみによる二輪接地状態となり、機体の旋回が容易に行える。また、このとき、左右の後輪２，２を下降させておけば、ハンドル４を押し下げ時のハンドル高さが適当な高さになって楽な姿勢で機体を旋回させる操縦が行える。そして、次の畝に移ったら、上記のような作業を再開する。このとき、作業者は前の畝で作業していたときとは機体の反対側に立って歩行移動しながら上記のような作業を行うことになるが、この場合も上記と同じように能率良く作業が行える。
【００３５】
以上のように、このたばこ幹刈り機は、歩行型の機体構成となって、コンパクトで小回りがきき、作業性の良好なものとなる。また、挟持搬送終端部５Ｅが後輪前端位置より後側に位置するように設けたので、後輪の後方寄りを前向きに歩行しながら、挟持搬送装置５の挟持搬送終端部５Ｅから排出されるたばこの幹Ｔを掴んで取上げ圃場に置いていけるので、作業が容易に行え、能率良く作業が行える。
【００３６】
更に、このたばこ幹刈り機は、機体後部側に設けたハンドル４の左右両端部が左右の後輪２，２よりも左右方向内側に位置するように設けたものなので、作業中、後輪２，２の後方寄りに立つ作業者にとってハンドル４が邪魔になりにくく、作業が一層容易に行えるものとなる。
【００３７】
また、このたばこ幹刈り機は、以下のように構成したものである。即ち、左右一対の前輪１，１と左右一対の後輪２，２を備えて畝Ｕを跨いで自走する走行機体３を設け、該走行機体３の後部に歩行操縦用のハンドル４を設け、該歩行操縦用のハンドル４の前側で機体平面視で左右の車輪１，１，２，２の間に、たばこの幹Ｔを機体に対し後方に挟持搬送する挟持搬送装置５と、該挟持搬送装置５により挟持搬送されるたばこの幹Ｔの基部側を切断する切断装置６を設け、前記挟持搬送装置５は、機体側面視で機体の前輪配置側から後輪配置側にかけて配置するとともに、挟持搬送装置５の挟持搬送終端部５Ｅが後輪前端位置より後側に位置するように設け、エンジン７とミッションケース８を挟持搬送装置５の挟持搬送終端部５Ｅより後側に配置した構成としている。これにより、ミッションケース８の下方の空間と、幹刈作業部Ｗの下方の空間を充分に確保できて、刈取った後に畝Ｕ上に残る残幹が機体に接触することが少なくなり、よって、軽快に作業走行できて、能率良く作業が行える。
【００３８】
このたばこ幹刈り機は、また、切断装置６は、機体側面視で挟持搬送装置５の挟持搬送始端部５Ｓより後側で挟持搬送終端部５Ｅより前側に配置するとともに、切断装置６の幹刈作用位置が、機体前後方向において、前輪車軸１ａ位置より後側で、後輪車軸１０より前側になるように設けたので、切断装置６の幹刈作用個所が、四つの車輪１，１，２，２でしっかりと支持された状態となるので、機体の直進走行が乱れ難く、そのぶん機体の進路修正操作が少なくて済み、能率良く作業が行える。
【００３９】
また、たばこの幹Ｔの基部側を切断する切断装置６とともに、収穫後に幹を吊下げるときに引っ掛けるための溝を形成する溝切り装置１８を設け、該溝切り装置１８の溝切り作用位置が、機体前後方向において前輪車軸１ａ位置より後側で後輪車軸１０より前側になるように設けたので、幹刈り後に吊下げ乾燥するときに使用する引っ掛け溝を幹刈時に幹に形成でき、しかも、その溝を形成する溝切り装置１８が幹の一側方から溝切り作用する個所が、四つの車輪１，１，２，２でしっかりと支持された状態となるので、機体の直進走行が乱れ難く、そのぶん機体の進路修正操作が少なくて済み、能率良く幹刈収穫作業が行える。
【００４０】
このたばこ幹刈り機は、また、ミッションケース８の受け台３１上面より上側個所から取出した動力を、受け台３１より下方に伝動する第一伝動部３５と、該下方伝動部３５の下部から受け台３１の下方を通過して前側に伝動する第二伝動部３６を介して挟持搬送装置５の後部に設けた駆動軸２８ａ，２８ａに伝動する構成としたので、ミッションケース８をコンパクトに構成し且つ機体の高い位置に配置し、更に受け台３１の位置を適確な高さに設定しながらも、走行速に比例して回転するミッションケース８内の動力を挟持搬送装置５に伝動して適確な幹刈り作業が行え、且つ、切断後に圃場に残る残幹が機体底部側に接触しにくくなって軽快に作業走行できる。
【００４１】
更に、前記第一伝動部３５と前記第二伝動部３６を、挟持搬送装置５の挟持個所に対して機体左右方向において左右両側方に設け、ミッションケース８の受け台３１上面より上側個所から取出した動力を、左右それぞれの第一伝動部３５，３５と第二伝動部３６，３６を経由して挟持搬送装置５の左右一対の無端体２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒを駆動する左右の駆動軸２８ａ，２８ａに伝動して、挟持搬送装置５の左右一対の無端体２４Ｌ，２４Ｒ；２５Ｌ，２５Ｒを効率良く駆動できるものでありながら、下側にのびる左右の第一伝動部３５，３５に残幹が接触しにくく軽快に作業走行できるものとなる。
【００４２】
そして、第一伝動部３５，３５の左右間隔を上側が狭く下側が広くなるように設けたので、機体に対する残幹の左右方向の位置が変化しても、下側にのびる左右の第一伝動部３５，３５に残幹が接触しにくくなって、一層軽快な作業走行が行えるものとなる。
【００４３】
さて、ここから、上記のように構成したたばこ幹刈り機で幹刈り収穫されたたばこを運搬する作物運搬車について、以下に説明する。
作物運搬車は、例えば、図６〜９に示すように構成する。この作物運搬車Ｂは、自走可能な運搬車５０と、該運搬車５０上に積降自在の運搬台車５５，５５とで構成している。運搬車５０は、機体を自走させるための駆動走行部５１，５１を左右に備えた走行装置５２と、上面に積載物を積載可能とする荷台５３と、駆動走行部５１，５１の駆動及び停止等の操作を行う操縦部５４とを備える。運搬車５０の荷台５３上には、一台或は複数台の運搬台車５５，５５を積載可能に設けている。図例では、運搬車５０の荷台５３上に２台の運搬台車５５，５５を運搬車５０の前後進行方向に対して横向きに積載可能に構成している。運搬台車５５は、作物を積載する荷台５５ａと、その荷台５５ａの下側に台車移動用車輪５５ｂ…を備える。また、荷台５５ａの左右両側部（図では、運搬台車５５，５５を運搬車の荷台５３上に横向き姿勢で積載しているので、運搬車５０の前後進方向に対しては前後側部分になる）に、側面視略門型状の枠体５６，５６を設け、荷台５５ａの少なくとも前後一側部は開放部５７を形成する。図例では、荷台５５ａの前後両側部が開放部５７，５７を形成する。この開放部５７は、荷台５５ａの前後側部に横方向の枠体を前後側部の上方に設けず、左右の枠体５６，５６の間の荷台５５ａ上方空間を荷台５５ａの少なくとも前後外方に向けて開放するものとなっている。また、運搬台車５５の前記開放部５７，５７を形成している側の左右の枠体のコーナー部に傾斜部５６ａ，５６ａを形成している。図例では、前後の開放部５７，５７の一方側において傾斜部５６ａ，５６ａを形成している。更に、運搬台車５５に台車移動用車輪５５ｂ…の回転にブレーキをかける適宜ブレーキ機構を設けるとともに、該ブレーキ機構のブレーキ操作を行う人為操作具としての操作レバー５８を枠体５６，５６の前記傾斜部５６ａ，５６ａに取付けている。また、運搬台車５５の荷台５５ａの中央部５５ｃは、荷台の周囲部より低く形成している。そしてまた、図９に示すように、運搬台車５５の左右の枠体５６，５６は荷台５５ａ上に折畳み可能に構成している。具体的には、運搬台車５５の左右の枠体５６，５６の基部を前後方向の軸５９…を介して荷台５５ａの左右両側部に取付けるとともに、枠体５６，５６を荷台５５ａの左右両側部で起立する姿勢で固定する固定手段６０…を設け、該固定手段６０…による固定を解除して枠体５６，５６を荷台５５ａ上に回動可能に構成している。固定手段６０…は、図例では、抜き差し可能なピンで構成し、これを前記軸５９と異なる個所で枠体５６，５６の基部を荷台５５ａの左右両側部に連結することにより、枠体５６，５６を荷台５５ａの左右両側部で起立する姿勢で固定する。前記運搬台車５５，５５の左右の枠体５６，５６の内側は、シートやネット或は板体等のカバー５６ｂ，５６ｂで覆っており、運搬台車５５，５５の荷台５５ａ上に積載した作物が荷台５５ａの左右外方に出っ張って運搬台車５５，５５の移動時に積載した作物が損傷を受けないようにしている。また、傾斜部５６ａ，５６ａの内側は、カバー５６ｂ，５６ｂを設けない個所５６ｃ、５６ｃを形成して、傾斜部５６ａ，５６ａを作業者が掴むときにカバーが邪魔にならないようにしている。尚、上記駆動走行部５１，５１は、図例では、クローラ式走行部により構成しており、又、それに代えて、駆動車輪により構成することもできる。
【００４４】
従って、上記構成とした作物運搬車Ｂは、作物積載部を備えない作物幹刈り機Ａの側方を作物幹刈り機Ａと略同速度で且つ同じ方向に畝Ｕ”を跨いで走行する。荷台５３上に積載された運搬台車５５，５５は、作物幹刈り機Ａが走行する側に開放部５７，５７が位置するように積載される。作業者は、作物幹刈り機Ａと作物運搬車Ｂとの間に位置し、作物幹刈り機Ａの後輪２の後側の谷部Ｖを歩行しながら作物幹刈り機Ａが幹刈りした作物の幹の基部側を片手で掴んで取上げ、そして、反対側の手に持ち替えて作物運搬車Ｂの運搬台車５５，５５上に積み込む。このとき、開放部５７，５７が作物幹刈り機Ａ側の向けて形成されているので、運搬台車５５，５５上への積み込みが容易に行える。運搬台車５５，５５上で作物が満載状態になったら、作物運搬車ＢをトラックＣの近くに移動し、作物運搬車Ｂの荷台５３上に積載した運搬台車５５，５５をトラックＣの荷台６１上に移動することで、幹刈りした作物のトラックＣへの積み込みが容易に行える。後は、トラックＣを運転して所定の格納場所に運搬する。なお、運搬台車５５，５５をトラックＣの荷台６１上に移動するとき、図１０に示すように、荷台５３の昇降機構６２を設け、これにより荷台５３を上昇させてトラックＣの荷台６１の高さと略同高さに調節すると、運搬台車５５，５５のトラックＣの荷台６１上への移動が一層容易に且つ迅速に行える。また、図１１，１２に示すように、作物運搬車Ｂを、荷台５３上に運搬台車５５，５５を積載した状態で、トラックＣの荷台６１上に積載可能となるように、作物運搬車Ｂの左右幅及び前後幅、上下高さを設定することで、作物運搬車Ｂの圃場までの移動及び作物運搬車Ｂの圃場から格納場所への移動が容易且つ迅速に行える。
【００４５】
よって、上記構成とした作物運搬車Ｂは、たばこ幹刈り機Ａに大きな作物積載部を設けなくてよいので、たばこ幹刈り機の大型化を回避し、且つ、収穫された作物の運搬が容易に行えて、能率良く収穫作業が行なえる。しかも、積載した作物を作物運搬車ＢからトラックＣへ積み替えるときには、作物運搬車Ｂの荷台５３上からトラックＣの荷台６１上に運搬台車５５，５５を移動させるだけで良いので、作物の積み替え作業も迅速且つ容易に行え、作業能率の向上が図れる。
【００４６】
また、運搬台車５５，５５の荷台５５ａ上に作物を積み上げても、荷台５５ａの左右両側部に設けた枠体５６，５６によって荷台５５ａ上の作物が支持されて荷台５５ａの外に作物が転げ落ちない。また、荷台５５ａ上に作物を積載するときは、左右の枠体５６，５６の間の荷台５５ａ上方空間を荷台５５ａの少なくとも前後一側外方に向けて開放する開放部５７，５７が形成されているので、この開放部５７，５７から作物を荷台５５ａ上に入れられるので、荷台５５ａ上への作物の積み込みも容易に行える。
【００４７】
幹刈りしたたばこＴのように長い作物を荷台５５ａ上に積載する場合に、開放部５７，５７側に立つ作業者が手に持った作物を左右の枠体５６，５６の外側から左右の枠体５６，５６の間に作物を移動させて積み込むとき、枠体５６，５６のコーナー部に傾斜部５６ａ，５６ａが形成されているので、枠体５６，５６のコーナー部に作物が引っ掛かりにくく、荷台５５ａ上への作物の積み込みが容易に行える。また、運搬台車５５をトラックＣの荷台６１に積降する場合に、作業者が傾斜部５６ａ，５６ａを掴んで運搬台車５５を容易に押し引きして移動できる。
【００４８】
作物を満載した運搬台車５５を歩み板を利用してトラックＣの荷台６１に積降する場合には、傾斜部５６ａ，５６ａを掴んで移動させる作業者が、適宜、ブレーキ操作レバー５８を操作してブレーキを掛けながら安全に運搬台車５５を移動できる。
【００４９】
運搬台車５５の荷５５ａの中央部を荷台５５ａの周囲部より低く形成したので、幹刈りされたたばこＴなど中間部がかさばる作物を積載する場合に、多く積み上げても荷台５５ａの中央部が高くなりにくく、多くの作物を安定した状態で荷台５５ａ上に積載できる。
【００５０】
また、運搬台車５５は、左右の枠体５６，５６を荷台５５ａ上に折畳めるので、運搬台車５５自体の運搬や格納が効率的に行える。
【図面の簡単な説明】
【図１】たばこ幹刈り機の側面図。
【図２】たばこ幹刈り機の平面図。
【図３】たばこ幹刈り機の前部側の部分縦断面図。
【図４】たばこ幹刈り機の後部側の部分縦断面図。
【図５】たばこ幹刈り機と作物運搬車による幹刈り作業状態を示す平面図。
【図６】作物運搬車の側面図。
【図７】作物運搬車の平面図。
【図８】作物運搬車の斜視図。
【図９】作物運搬車の正面図。
【図１０】運搬車からトラックへの運搬台車の移動を示す背面図。
【図１１】作物運搬車のトラック積載状態を示す側面図。
【図１２】作物運搬車のトラック積載状態を示す平面図。
【符号の説明】
Ａ たばこ幹刈り機
Ｂ 作物運搬車
Ｃ トラック
Ｔ たばこ
Ｕ 畝
５０ 運搬車
５１，５１ 駆動走行部
５２ 走行装置
５３ 運搬車の荷台
５４ 操縦部
５５，５５ 運搬台車
５５ａ 運搬台車の荷台
５５ｂ… 台車移動用車輪
５６，５６ 枠体
５６ａ，５６ａ 傾斜部
５７，５７ 開放部
５８ ブレーキ操作レバー
５９… 軸
６０… 固定手段
６１ トラックの荷台[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to the technical field of crop transport vehicles that load and transport crops.
[0002]
[Prior art]
Conventionally, when transporting harvested crops in a field, the harvested crops are loaded on a crop loading section provided in a harvester, and when they reach the end of the field, they are transshipped to a truck or the like. However, if a large crop loading section is provided so that crops can be loaded to the end of the field, the size of the harvester becomes large, and therefore, small turns cannot be made in the field, and work cannot be performed efficiently. Therefore, when a self-propelled transport vehicle as described in Patent Document 1 is placed in a field, and the crops harvested in the field are loaded and transported on the carrier of the transport vehicle, a large crop loading machine is mounted on the harvester. It is not necessary to provide any part, and the harvester can be downsized, the harvester can be easily handled, and the harvesting operation can be performed efficiently.
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2000-127773
[Problems to be solved by the invention]
When a crop harvested in a field is transported by a self-propelled transport vehicle as described in Patent Literature 1, the size of the harvester can be reduced, and the harvester can be easily handled and the efficiency of the harvesting operation can be improved. It can be improved. However, when transferring crops from a truck to a truck, it is necessary to pick up the crops loaded on the truck bed and take them to the truck bed. Absent.
[0005]
Therefore, the present invention avoids the increase in the size of the harvester, facilitates the transport of the crops harvested in the field, and facilitates the transfer of the crops from the truck to the truck. As an issue.
[0006]
[Means for Solving the Problems]
The present invention takes the following measures in order to solve the above problems.
The invention according to claim 1 is a crop carrier comprising a self-propelled carrier having a carrier at an upper portion thereof and a carrier capable of loading and unloading on the carrier of the carrier. .
[0007]
According to a second aspect of the present invention, the transport trolley includes a loading platform for loading crops and wheels for moving the trolley, and a substantially gate-shaped frame body is provided on both left and right sides of the loading platform. A crop carrier is characterized in that an open portion is formed to open a space above the carrier between the frames toward at least one side outward of the carrier.
[0008]
According to a third aspect of the present invention, there is provided the crop carrier according to the second aspect, wherein an inclined portion is formed at a corner portion of the left and right frames on the side forming the open portion of the transport vehicle. Things.
The invention according to claim 4 is characterized in that a brake mechanism for a wheel for moving a truck is provided on the transport cart, and a manual operation tool for performing a brake operation of the brake mechanism is attached to the inclined portion of the frame. Item 3 is a crop transport vehicle.
[0009]
The invention according to claim 5 is the crop carrier according to claim 2, wherein the center of the carrier of the carrier is formed lower than the periphery of the carrier.
The invention according to claim 6 is the crop carrier according to claim 2, wherein the left and right frames of the carrier are foldable on a carrier.
[0010]
[Action]
The crop carrier having the above-described configuration enters the field with the carrier loaded on the carrier of the carrier, and the harvester loads the harvested crop onto the carrier and moves. When transshipping crops to a truck when the truck is full, the truck is moved from the carrier of the carrier to the carrier of the truck.
[0011]
【The invention's effect】
According to the first aspect of the present invention, it is not necessary to provide a large crop loading portion in the harvester, so that the harvester can be prevented from being enlarged, and the harvested crop can be easily transported. I can do it. Moreover, when transferring the loaded crop from the crop carrier to the truck, it is only necessary to move the carrier from the carrier of the carrier to the carrier of the truck. Can be improved.
[0012]
According to the second aspect of the present invention, even when the crops are stacked on the carrier of the transport vehicle, the crops on the carrier are supported by the frames provided on both right and left sides of the carrier, and the crop does not fall out of the carrier. Also, when loading the crop on the loading platform, an opening is formed to open the space above the loading platform between the left and right frames toward at least one of the front and rear sides of the loading platform. Can be loaded on the carrier, so that the crop can be easily loaded on the carrier.
[0013]
According to a third aspect of the present invention, when a long crop is loaded on a loading platform, the worker standing on the open side moves the crop held by the hand from the outside of the left and right frames to between the left and right frames. When loading, the crop is hardly caught on the corner of the frame because the inclined portion is formed at the upper corner of the frame, and the crop can be easily loaded on the loading platform. Further, when loading / unloading the transport trolley from / to the truck bed, the operator can easily move the transport trolley by grasping the inclined portion and pushing / pulling the transport trolley.
[0014]
According to the fourth aspect of the present invention, when loading and unloading a truck full of crops on a truck bed using a step board, the truck can be moved safely while applying a brake.
In the invention according to claim 5, the central portion of the carrier of the carrier is formed lower than the peripheral portion of the carrier. The height of the section is not high, and many crops can be stably loaded on the loading platform.
[0015]
According to the sixth aspect of the present invention, since the left and right frames of the transport vehicle can be folded on the carrier, the transport vehicle itself can be efficiently transported and stored.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
As one embodiment of the present invention, a crop carrier for transporting tobacco stem-harvested in the case where stem-harvested tobacco vegetated in a field is harvested will be described below.
[0017]
First, a tobacco stem reaper that harvests and harvests tobacco vegetated in a field will be described below.
As shown in FIGS. 1 to 4, the tobacco trunk mower is provided with a traveling body 3 including a pair of left and right front wheels 1, 1 and a pair of left and right rear wheels 2, 2 and self-propelled across a ridge. A handle 4 for walking operation is provided at the rear of the vehicle 3 and a trunk T of the cigarette is disposed between the left and right wheels 1, 1, 2, 2 in front of the steering wheel 4 for walking operation, between the left and right wheels 1, 1, 2, 2 with respect to the body. And a cutting device 6 for cutting the base side of the stem T of the tobacco that is nipped and conveyed by the nipping and conveying device 5. The nipping and conveying device 5 is provided with a front wheel arrangement of the body in a side view of the body. And the rear-wheel disposition side, and the nipping and transporting end portion 5E of the nipping and transporting device 5 is provided so as to be located rearward from the front end position of the rear wheel. Further, the left and right ends of the walking steering handle 4 are provided on the inner side in the left and right direction with respect to the left and right rear wheels 2.
[0018]
The traveling body 3 has a first engine 7 installed at a rear part of the body and a transmission case 8 provided at a front side of the first engine 7. First traveling transmission cases 9, 9 extending downward are mounted on the left and right sides of the transmission case 8, and the second traveling transmission cases 10, 10 are laterally mounted on one lower side of the first traveling transmission cases 9, 9. The rear traveling axles 11 are protruded from one side of the distal end side of the second traveling transmission case 10, and the rear wheels 2, 2 are attached thereto. The power of the first engine 7 is transmitted to the rear wheels 2 and 2 via the transmission mechanism in the transmission case 8 and the transmission mechanisms in the first traveling transmission cases 9 and 9 and the second traveling transmission cases 10 and 10. , And is driven and rotated.
[0019]
The left and right rear wheels 2 and 2 and the left and right front wheels 1 and 1 are configured to be able to move up and down with respect to the machine body. It is provided so that it can be corrected as appropriate in accordance with the height of the object. In this example, specifically, the left and right second traveling transmission cases 10, 10 to which the rear wheels 2, 2 are attached are connected to the lifting and lowering adjustment mechanisms 11, 11, and the second traveling transmission case is operated by operating the lifting and lowering adjustment mechanisms 11, 11. The transmission cases 10 and 10 are configured to rotate so that the rear wheels 2 and 2 move up and down. Specifically, first arms 12,12 are provided at a rotatable mounting portion of the second traveling transmission cases 10,10 to the first traveling transmission cases 9,9, and the distal ends of the first arms 12,12 are provided. The support frames 4b, 4b provided on the left and right sides of the machine body are connected by telescopic rods 13, 13. The telescopic rods 13, 13 operate by manipulating the artificial operating tools 11a, 11a, and when the telescopic rods 13, 13 are shortened, the second traveling power transmission cases 10, 10 are rotated upward. When the rear wheels 2 and 2 are raised and the telescopic rods 13 and 13 are operated to be longer, the second traveling power transmission cases 10 and 10 are rotated downward, and the rear wheels 2 and 2 are lowered. If the left and right rear wheels 2 are set at different heights, the left and right postures of the trunk cutting unit W including the nipping and conveying device 5 and the cutting device 6 can be adjusted in accordance with the left and right inclination of the field. It can be modified as appropriate. In the present embodiment, the mechanism is adjusted by manual operation. However, it is also possible to adopt a configuration in which a sensor for detecting the attitude of the body to the ground and a hydraulic mechanism for driving the wheels up and down are provided for automatic adjustment.
[0020]
At the front part of the traveling machine body 3, left and right front wheels 1, 1 constituted by idle wheels are mounted so as to be vertically adjustable with respect to the machine body. In this example, the front wheel and the rear wheel on the same left and right sides are connected so as to be adjusted in the same direction in conjunction with the vertical adjustment of the rear wheels 2 and 2, and the vertical height of the trunk cutting unit W is adjusted. It is provided so that the posture in the front-rear direction sometimes does not largely change. Specifically, a second arm 14 that rotates integrally with the first arms 12, 12 is mounted on a rotatable mounting portion of the second traveling transmission case 10, 10 to the first traveling transmission case 9, 9. , 14 and the front wheel supporting members 1b, 1b provided with the front wheel axles 1a, 1a of the left and right front wheels 1, 1 are integrally mounted with the front wheel supporting members 1b, 1b on a mounting portion rotatably mounted on the body frame. The first traveling transmission case 10 is provided with connecting rods 15b, 15b which are connected to the distal ends of the interlocking arms 15a, 15a and the distal ends of the second arms 14, 14 by connecting rods 15b, 15b. , 10 and the front wheel support members 1b, 1b move up and down in conjunction with each other in the same direction.
[0021]
Since the front wheel support members 1b, 1b are provided so as to be adjustable in expansion and contraction, the trunk cutting work unit W can cut the trunk extending in the vertical direction horizontally when working on a field inclined in the front-rear direction. Can be adjusted. Further, by providing the front and rear wheels so that the left and right positions can be adjusted, the ground contact position of the wheels can be appropriately adjusted according to the width of the ridge.
[0022]
The traveling body 3 is provided with left and right frames 16 extending from the front wheel 1 side to the rear wheel 2 side. A trunk cutting section W having a holding and conveying device 5 and a cutting device 6 is detachably attached to the frames 16 and 16. At the front of the left and right frames 16, 16, weeds 17, 17 each having an upper surface rising upward in a side view and having a narrower width toward the front in a plan view, are attached to the front portions of the left and right frames 16, and are pinched and conveyed from the front as the aircraft advances. The lower leaves of the crop entering the holding point of the device 5 are lifted so that the lower leaves are not held by the holding and conveying device 5. The rear portions of the frames 16, 16 are fixed to the lower portion of the transmission case 8 and the inner portion of the first traveling power transmission case 9 via mounting members. The support frame 4a of the handle 4 is bent downward and fixed to the left and right support frames 4b, 4b.
[0023]
In the present embodiment, the stem cutting section W is configured as follows. The nipping transport device 5 is configured to be driven by the power of the first engine 7 that drives the traveling body 3. Therefore, the nipping and transporting device 5 can be driven to rotate in proportion to the traveling speed, the nipping and transporting of the cutting stem is maintained while maintaining the upright attitude, and the cutting of the trunk by the cutting device 6 is performed in an appropriate attitude, and the Mowing work can be performed. On the other hand, the cutting device 6 in which a driving load significantly larger than the driving load of the traveling machine body 3 and the driving load of the nipping and conveying device 5 is driven by the power of a second engine 18 mounted separately from the first engine 7. And This makes it difficult for the cutting machine 6 and the transporting body 3 and the nipping and transporting device 5 to stop due to an overload at the time of cutting, thereby making it impossible to cut, so that the cutting operation can be performed efficiently. If a single engine is used to drive the traveling machine and the entire trunk cutting work unit, and the horsepower is set large so that the work is not interrupted as much as possible due to overload at the time of cutting, the driving load is relatively small. The body and the nipping and conveying device are driven with extra horsepower, which results in a horsepower loss. However, by adopting the above drive configuration, the horsepower can be increased while suppressing the horsepower loss.
[0024]
A more specific configuration will be described. A cutting blade drive case in which the second engine 18 is mounted on the front part of one of the left and right sides (the left side in the drawing) of the frame 16, and the cutting device 6 composed of a disk-shaped cutting blade is mounted on the frame 16. It is attached to a drive shaft projecting upward from 19. A pulley 19a is mounted on the input shaft of the cutting blade drive case 19, and a transmission belt 20 is wound around the pulley 19a and a pulley 18a mounted on the output shaft of the second engine 18, so that the power of the second engine 18 is supplied to the cutting blade. The cutting shaft 6 is driven to rotate by being transmitted to the inside of the drive case 19 and the cutting device 6 is rotated. Further, on the rear side of the cutting device 6, there is provided a grooving device 21 for forming a groove for hooking when the tobacco trunk is suspended after harvesting. The grooving device 21 has a drive shaft in which a disk-shaped cutting blade projects upward and downward from the grooving blade drive case 22 mounted on the frame 16 at a vertical interval corresponding to the width of two grooves. Attached. A pulley 22a is attached to the input shaft of the groove cutting blade drive case 22, and a transmission belt 23 is wound around the pulley 22a and a pulley 19b attached to the input shaft of the cutting blade drive case 19, so that the power of the second engine 18 is supplied. The drive shaft is driven and rotated by being transmitted into the groove cutting blade drive case 22, and the groove cutting device 21 rotates. In addition, a second cutting device for further shortening the lower part of the trunk cut by the cutting device 6 and held by the holding and conveying device 5 to the set dimension is located on the rear side of the cutting device 6 or at the same position in the front-rear direction with the cutting device 6. , The remaining stem can be cut short, and the lower part of the cut tobacco can be made less likely to be caught during transport of the nipping transport device 5 or when being discharged backward from the transport end.
[0025]
The nipping and conveying device 5 is configured such that nipping and conveying chains 24L, 24R; 25L, 25R provided on the left and right and in two vertical stages are driven and rotated so that the left and right central portions of the body move to the rear of the body. is there. The left and right holding / conveying chains 24L, 24R; 25L, 25R are arranged on the left and right center sides of the machine body at appropriately set right and left intervals so that the tobacco trunk can be properly held. In the present embodiment, the chain connecting plates of the nipping and conveying chains 24L, 24R; 25L, 25R are formed to have projections projecting in the rotation outer peripheral direction in the shape of a chevron. The projections of the chain connecting plates of 24L, 24R; 25L, 25R are adapted to properly pinch and transport the trunk of the tobacco.
[0026]
Left and right upper and lower nip conveyor chains 24L, 24R; 25L, 25R of the nip conveyor device 5 are driven sprockets 26 rotatably mounted on left and right longitudinal axes 26a, 26a provided in front of the left and right frames 16, 16, respectively. 26; 26, 26 and drive sprockets 28, 28; 28, 28 attached to drive shafts 28a, 28a protruding upward from left and right nipping and transporting drive cases 27, 27 provided at the rear of the left and right frames 16, 16; 28, and the tension rollers 29, 29; 29, 29 are provided so as to be in contact with each other so as to press from the inner side to the outer side of each of the nipping and transporting chains 24L, 24R; 25L, 25R. The left and right central sides of the transfer chains 24L, 24R; 25L, 25R are positioned so that the chains do not escape to the left and right outside when holding and transporting the tobacco trunk. Chen supporting members 30, 30 supporting that so as not shifted in; the 30, 30 are provided so as to Setto from orbiting inside the chain. The power taken out of the transmission case 8 is transmitted to the left and right nipping transport drive cases 27, 27 via transmission means.
[0027]
Below the nipping and transporting terminal 5E of the nipping and transporting device 5, a receiving table 31 that can support the lower end of the tobacco stem T discharged from the nipping and transporting terminal 5E of the nipping and transporting device 5 from below is arranged. . Accordingly, when the worker picks up the trunk T discharged from the nipping and transporting end portion 5E of the nipping and transporting device 5, the lower end of the trunk T is supported by the cradle 31 even if the timing of grasping the trunk T is delayed. Therefore, the trunk T can be properly picked up without falling down of the trunk T, and the high-speed operation can be performed satisfactorily. In order that the lower end portion of the tobacco stem T discharged from the nipping / transporting end portion 5E of the nipping / conveying device 5 can be supported from below by the receiving base 31, the height of the receiving base 31 must be adjusted by the cutting height of the cutting device 6. On the other hand, it is necessary to set the same height or lower. When the second cutting device is provided, the height is set to be equal to or lower than the cutting height of the second cutting device.
[0028]
The cradle 31 extends rearward from below the nipping and transporting terminal 5E of the nipping and transporting device 5 and extends right and left outward from the left and right outer portions of the rear end of the nipping and transporting device 5. . Thus, when the worker picks up the stem T of the tobacco discharged from the nipping and transporting end portion 5E of the nipping and transporting device 5, the worker moves the lower end of the trunk T to the side of the machine body so as to slide on the receiving table 31. Since the trunk T can be picked up, the work of repeatedly picking up heavy cigarettes and placing them on the field can be performed easily, thereby reducing labor.
[0029]
Further, since the left and right ends of the cradle 31 extending outward in the left and right directions are arranged so as to be located inside the left and right rear wheels 2, the worker stands from the rear side of the rear wheel. In order to pick up the tobacco trunk T discharged from the nipping / conveying terminal portion 5E of the nipping / conveying device 5, even if the body is leaned toward the machine body side when the hand is extended toward the nipping / conveying terminal portion 5E, the cradle 31 is in the way. Instead, the tobacco trunk T can be easily picked up and work can be performed efficiently.
[0030]
At the rear of the rear end of the nipping and conveying device 5, a passage S communicating to both left and right outer sides is formed. Since the worker can grasp the stem T of the tobacco discharged from the sandwiching and transporting end portion 5E of the sandwiching and transporting device 5 and pass the same through the passage S and pull it out to the left and right, it is easy to remove the stem T of the cut tobacco. Work can be performed efficiently. Specifically, the trunk T of the tobacco can pass in the left-right direction in a standing posture between the front and rear portions of the rear end portion of the nipping and conveying device 5 and the portion where the cover 32 rises upward from the rear end portion of the cradle 31. It is provided to have a wide width. In addition, it is assumed that the front and rear widths of the cradle 31 have at least the same width in this space. In addition, if the width between the front and rear is equal to the width of two trunks T of cigarettes (specifically, 7 to 10 cm), the trunk T can be more easily pulled out to the left and right.
[0031]
On the rear side of the cradle 31, a cover 32 that covers the upper part of the transmission part such as the transmission case 8 is provided. In addition, the upper side and both left and right sides of the nipping and conveying device 5 are covered with working unit covers 33, 33. The second engine cover 34 covers the upper side, the left and right outer sides, and the front side of the second engine 18.
[0032]
The transmission structure from the transmission case 8 to the drive shafts 28a provided at the rear of the nipping and conveying device 5 is configured as follows. That is, the first power transmitting portion 35 that transmits the power taken from the upper portion from the upper surface of the cradle 31 of the transmission case 8 below the cradle 31 and the lower power transmission portion 35 passes below the cradle 31 from below. The driving force is transmitted to drive shafts 28a, 28a provided at the rear of the nipping and conveying device 5 via a second transmission portion 36 that transmits to the front side. Further, the first transmission part 35 and the second transmission part 36 are moved to the right and left sides of the body in the left-right direction with respect to the holding point (the left and right holding / conveying chains 24L, 24R; opposing parts of 25L, 25R) of the holding / conveying device 5. And the power taken out from the upper portion from the upper surface of the receiving base 31 of the transmission case 8 is transmitted to the left and right pair of endless bodies ( The left and right holding / conveying chains 24L, 24R; 25L, 25R) are transmitted to the left and right drive shafts 28a, 28a. Furthermore, the left and right intervals of the first transmission portion 35 are provided such that the upper side is narrower and the lower side is wide.
[0033]
Further, the specific configuration of the present example will be described. First, the transmission shaft 37 is taken out from a position above the upper surface of the receiving base 31 of the transmission case 8 and introduced into the upper part of the first transmission part 35. The power introduced into the upper portion of the first transmission portion 35 drives and rotates one shaft of the gears G1 and G1 which are arranged on the left and right and mesh with each other, and reversely rotates the shaft of the other gear by the meshing of the gears G1 and G1. And distribute power to the left and right. Sprockets S1 and S1 are attached to the shafts of the left and right gears G1 and G1, respectively, and the transmission chains C1 and C1 are wound around the sprockets S1 and S1 and the sprockets S2 and S2 provided below the first transmission portion 35. As a result, the rotational power divided into right and left at the upper part of the first transmission part 35 is transmitted to the lower part of the left and right first transmission parts 35. The second transmissions 36, 36, which extend the shafts of the respective sprockets S2, S2 provided below the left and right first transmissions 35 forward, provide universal joints to the input shafts of the nipping and transporting drive cases 27, 27. The driving shafts 28a, 28a provided at the rear of the nipping and conveying device 5 are driven by being transmitted through the nipping and conveying driving cases 27, 27.
[0034]
When performing tobacco stem-cutting work using the tobacco stem-cutting machine configured as described above, the tobacco stem-cutting machine includes a pair of left and right front wheels 1, 1 and a pair of left and right rear wheels 2, as shown in FIG. , 2 self-propelled across the ridge U, the nipping and transporting device 5 nipping and transporting the trunk T of the tobacco backward to the fuselage, and the base side of the tobacco trunk T being nipped and transported. Is cut by the cutting device 6. The tobacco whose trunk has been cut is discharged from the nipping / transporting end portion 5E of the nipping / transporting device 5 located behind the front end position of the rear wheel. The worker walks in the valley V between the ridge U 'already cut and the ridge U in operation, and walks toward the rear of the rear wheel 2 on one of the left and right sides, while holding the nipping and conveying device 5. The tobacco trunk T discharged from the nipping and transporting end portion 5E is picked up by one hand, and then is picked up by the other hand, and is loaded on a crop carrier vehicle that is self-propelled on the side of the tobacco stem mower. And place it on the carrier of the transport cart. When the work proceeds to the end of the field and moves to the next ridge to perform the trunk cutting operation, the operator moves rearward to operate the machine with the handle 4 in hand. When the body is turned, when the handle 4 is depressed, the front wheels 1 and 1 are raised to be in a two-wheel contact state with only the left and right rear wheels 2 and 2, and the body can be easily turned. At this time, if the left and right rear wheels 2 and 2 are lowered, the steering wheel 4 can be controlled to have an appropriate height when the steering wheel 4 is depressed, and the aircraft can be turned in a comfortable posture. Then, when the next row is moved, the above operation is restarted. At this time, the worker performs the above-mentioned work while walking and walking while standing on the opposite side of the aircraft from the time when he was working on the previous ridge, but in this case as well as efficiently as above Work can be done.
[0035]
As described above, this tobacco stem mower has a walking-type body structure, is compact, has a small turn, and has good workability. In addition, since the nipping / transporting end portion 5E is provided so as to be located rearward from the front end position of the rear wheel, the nipping / transporting device 5 is discharged from the nipping / transporting end portion 5E of the nipping / transporting device 5 while walking forward toward the rear of the rear wheel. Since the tobacco trunk T can be grasped and placed in the picking field, the work can be performed easily and efficiently.
[0036]
Furthermore, in this tobacco stem mower, the left and right ends of the handle 4 provided on the rear side of the fuselage are provided so as to be located inside the left and right rear wheels 2 and 2 in the left and right direction. , 2, the handle 4 is less likely to hinder the worker, and the work can be performed more easily.
[0037]
Further, the tobacco stem mower is configured as follows. That is, a traveling body 3 is provided that includes a pair of left and right front wheels 1 and 1 and a pair of left and right rear wheels 2 and 2 and that runs over a ridge U, and a handle 4 for walking operation is provided at the rear of the traveling body 3. A holding and transporting device 5 for holding and transporting the tobacco trunk T to the rear of the body between the left and right wheels 1, 1, 2, 2 in front of the walking handle 4 between the left and right wheels 1, 2, and 3 in the plane of the body; A cutting device 6 for cutting the base side of the tobacco stem T pinched and conveyed by the conveying device 5 is provided, and the pinching and conveying device 5 is arranged from the front wheel arranging side to the rear wheel arranging side of the airframe in a side view of the airframe. The nipping and conveying terminal 5E of the nipping and conveying device 5 is provided so as to be located behind the front end position of the rear wheel, and the engine 7 and the transmission case 8 are arranged behind the nipping and conveying end 5E of the nipping and conveying device 5. I have. As a result, the space below the mission case 8 and the space below the trunk cutting section W can be sufficiently secured, and the remaining trunk remaining on the ridge U after cutting has less contact with the machine body. Work can be performed lightly and work can be performed efficiently.
[0038]
In this tobacco stem-mowing machine, the cutting device 6 is disposed behind the nipping and conveying start end 5S of the nipping and conveying device 5 and in front of the nipping and conveying end 5E in a side view of the machine body. Since the action position is provided behind the position of the front wheel axle 1a and in front of the rear wheel axle 10 in the longitudinal direction of the fuselage, the cutting position of the cutting device 6 is reduced to the four wheels 1, 1, 2. , 2 so that the straight running of the aircraft is less likely to be disturbed, so that the operation of correcting the course of the aircraft can be reduced, and work can be performed efficiently.
[0039]
In addition, along with the cutting device 6 for cutting the base side of the tobacco trunk T, a grooving device 18 for forming a groove to be hooked when hanging the trunk after harvesting is provided, and the grooving action position of the grooving device 18 is changed. In the longitudinal direction of the fuselage, since the rear axle 1a is provided behind the front wheel axle 1a and in front of the rear wheel axle 10, a hook groove used for hanging and drying after cutting the trunk can be formed in the trunk at the time of trunk cutting. The location where the grooving device 18 that forms the groove performs the grooving action from one side of the trunk is in a state of being firmly supported by the four wheels 1, 1, 2, and 2, so that the body can travel straight. It is difficult to be disturbed, so that the operation of correcting the course of the aircraft is small, and the trunk cutting and harvesting work can be performed efficiently.
[0040]
The tobacco stem reaper also receives a power taken out from an upper portion from the upper surface of the cradle 31 of the transmission case 8 and a first transmission portion 35 that transmits the power below the cradle 31 and a lower portion of the lower transmission portion 35. The transmission case 8 is configured to be compact because the transmission is transmitted to the drive shafts 28a, 28a provided at the rear of the nipping and conveying device 5 via the second transmission portion 36 that transmits below the table 31 and transmits to the front side. In addition, the power in the transmission case 8 that rotates in proportion to the traveling speed is transmitted to the nipping and conveying device 5 while the cradle 31 is arranged at a high position and the position of the cradle 31 is set at an appropriate height. An appropriate trunk cutting operation can be performed, and the remaining trunk remaining in the field after cutting is less likely to come into contact with the machine body bottom side, so that the operation can be performed lightly.
[0041]
Further, the first transmission part 35 and the second transmission part 36 are provided on both left and right sides in the lateral direction of the body with respect to the holding point of the holding and conveying device 5, and are taken out from the upper part from the upper surface of the receiving base 31 of the transmission case 8. The left and right drive shafts that drive the pair of left and right endless bodies 24L, 24R; 25L, 25R of the nipping and conveying device 5 via the left and right first transmission portions 35, 35 and the second transmission portions 36, 36, respectively. While being able to efficiently drive the pair of left and right endless bodies 24L, 24R; 25L, 25R of the nipping and conveying device 5 while being transmitted to the first and second left and right transmission portions 35, 35 extending downward. The trunk does not easily come into contact with the work, and the work can be performed lightly.
[0042]
Since the left and right intervals of the first transmission portions 35 are provided so that the upper side is narrower and the lower side is wide, even if the position of the remaining trunk relative to the fuselage in the left and right direction changes, the left and right first transmissions extending downward. It becomes difficult for the remaining trunk to contact the parts 35, 35, so that a lighter work traveling can be performed.
[0043]
Now, a description will be given below of a crop transport vehicle that transports tobacco stem-harvested by the tobacco stem-mower configured as described above.
The crop carrier is configured, for example, as shown in FIGS. The crop carrier B is composed of a self-propelled carrier 50 and transport vehicles 55, 55 that can be loaded and unloaded on the carrier 50. The transport vehicle 50 includes a traveling device 52 having left and right driving traveling units 51, 51 for self-propelling the body, a loading platform 53 capable of loading a load on an upper surface, and driving and driving of the driving traveling units 51, 51. And a control unit 54 for performing operations such as stopping. On the carrier 53 of the carrier 50, one or more carriers 55, 55 are provided so as to be loadable. In the illustrated example, two transport vehicles 55, 55 can be stacked on the carrier 53 of the transport vehicle 50 in a lateral direction with respect to the forward and backward traveling direction of the transport vehicle 50. The transport trolley 55 is provided with a loading platform 55a on which the crop is loaded and wheels 55b for transporting the trolley below the loading platform 55a. In addition, the left and right sides of the loading platform 55a (in the figure, the transporting vehicles 55, 55 are loaded on the loading platform 53 of the transporting vehicle in a lateral orientation, so that the transporting vehicles 55, 55 are located on the front and rear sides with respect to the forward and backward traveling direction of the transporting vehicle 50. ), A substantially gate-shaped frame body 56, 56 is provided in a side view, and at least one of the front and rear sides of the loading platform 55 a forms an open portion 57. In the illustrated example, both front and rear sides of the loading platform 55a form open portions 57, 57. This open portion 57 does not provide a horizontal frame above the front and rear sides on the front and rear sides of the carrier 55a, and makes the space above the carrier 55a between the left and right frames 56, at least outward and forward of the carrier 55a. It is open to the public. In addition, inclined portions 56a, 56a are formed at the corners of the left and right frame bodies on the side where the open portions 57, 57 of the transport cart 55 are formed. In the illustrated example, inclined portions 56a, 56a are formed on one side of the front and rear open portions 57, 57. Further, a suitable brake mechanism for applying a brake to the rotation of the cart moving wheels 55b is provided on the transport cart 55, and an operation lever 58 as a manual operation tool for performing a brake operation of the brake mechanism is connected to the tilting of the frame bodies 56, 56. It is attached to the parts 56a, 56a. The center 55c of the carrier 55a of the transport vehicle 55 is formed lower than the periphery of the carrier. Further, as shown in FIG. 9, the left and right frames 56, 56 of the transport vehicle 55 are configured to be foldable on the loading platform 55a. Specifically, the bases of the left and right frames 56, 56 of the transport vehicle 55 are attached to the left and right sides of the loading platform 55a via the front-rear shafts 59, and the frames 56, 56 are attached to the left and right sides of the loading platform 55a. Fixing means 60 are provided to fix the frames 56, 56 in a standing position, and the frames 56, 56 are rotatable on the loading platform 55a by releasing the fixing by the fixing means 60. In the illustrated example, the fixing means 60 are constituted by pins that can be inserted and withdrawn, and by connecting the bases of the frames 56, 56 to the left and right sides of the loading platform 55a at locations different from the shaft 59, the frame means 56 , 56 are fixed in an upright position on both left and right sides of the loading platform 55a. The inside of the left and right frame bodies 56, 56 of the transport vehicles 55, 55 are covered with covers 56b, 56b such as sheets, nets, or plates, so that the crops loaded on the carrier 55a of the transport vehicles 55, 55 can be used. The crops that protrude to the left and right outside of the loading platform 55a and move when the transport vehicles 55, 55 are moved are prevented from being damaged. In addition, the insides of the inclined portions 56a, 56a are formed with portions 56c, 56c where the covers 56b, 56b are not provided, so that the covers do not become an obstacle when the workers grasp the inclined portions 56a, 56a. Note that, in the illustrated example, the drive traveling units 51, 51 are configured by crawler-type traveling units, and may be configured by drive wheels instead.
[0044]
Therefore, the crop transport vehicle B having the above-described configuration runs on the side of the crop trunk mower A having no crop loading portion at substantially the same speed as the crop trunk mower A and across the ridge U ″ in the same direction. The transport vehicles 55, 55 loaded on the loading platform 53 are loaded so that the opening portions 57, 57 are located on the side where the crop trunk mower A runs. It is located between the car B and the crop trunk mower A, while walking on the rear valley V behind the rear wheel 2, grasps the base side of the crop trunk which the crop trunk mower A has cut with one hand and picks it up. Then, it is held on the opposite hand and loaded on the transport carts 55, 55 of the crop transport truck B. At this time, since the open portions 57, 57 are formed toward the crop trunk mower A, the transport carts are formed. It can be easily loaded on 55 and 55. The crop becomes full on the transport carts 55 and 55. Then, the crop carrier B is moved near the truck C, and the carriers 55, 55 loaded on the carrier 53 of the crop carrier B are moved onto the carrier 61 of the truck C. It can be easily loaded on C. Thereafter, the truck C is operated and transported to a predetermined storage location.When the transport vehicles 55, 55 are moved onto the loading platform 61 of the truck C, as shown in FIG. Is provided with a lifting mechanism 62 for the loading platform 53. When the loading platform 53 is raised and adjusted to be substantially the same height as the loading platform 61 of the truck C, the transport vehicles 55, 55 are moved onto the loading platform 61 of the truck C. 11 and 12, the crop carrier B can be loaded on the carrier 61 of the truck C with the carrier 55, 55 loaded on the carrier 53, as shown in FIGS. So that the crop Lateral width and longitudinal width of 搬車 B, by setting the vertical height, transfer from the field of movement to field crops truck B and crop transportation vehicle B to the storage location can be easily and quickly.
[0045]
Therefore, the crop transporter B having the above configuration does not need to provide a large crop loading portion in the tobacco stem mower A, so that the tobacco stem mower can be prevented from being enlarged and the harvested crop can be easily transported. Harvesting can be done efficiently. In addition, when the loaded crop is transferred from the crop carrier B to the truck C, it is only necessary to move the transport vehicles 55, 55 from the carrier 53 of the crop carrier B to the carrier 61 of the truck C. Work can be performed quickly and easily, and work efficiency can be improved.
[0046]
Further, even when the crops are stacked on the loading platform 55a of the transport vehicles 55, 55, the crops on the loading platform 55a are supported by the frames 56, 56 provided on the left and right sides of the loading platform 55a, and the crops fall out of the loading platform 55a. Absent. Further, when the crop is loaded on the loading platform 55a, open portions 57, 57 are formed to open the space above the loading platform 55a between the left and right frames 56, 56 at least outwardly of the front and rear sides of the loading platform 55a. Since the crops can be put on the bed 55a from the open portions 57, 57, the crops can be easily loaded on the bed 55a.
[0047]
When a long crop such as a stem-cut tobacco T is to be loaded on the loading platform 55a, the crops held by the workers standing on the open portions 57, 57 side are separated from the left and right frames 56, 56 from the outside of the left and right frames. When the crop is moved and loaded between the bodies 56, 56, the inclined portions 56a, 56a are formed at the corners of the frame bodies 56, 56, so that the crop is hardly caught on the corners of the frame bodies 56, 56, Crops can be easily loaded on the bed 55a. In addition, when loading / unloading the transport trolley 55 to / from the loading platform 61 of the truck C, an operator can easily move the transport trolley 55 by grasping the inclined portions 56a and 56a.
[0048]
When loading and unloading the transport cart 55 loaded with crops on the loading platform 61 of the truck C using a step board, an operator who grasps and moves the inclined portions 56a, 56a operates the brake operation lever 58 as appropriate. The carriage 55 can be moved safely while the brake is applied.
[0049]
Since the center of the load 55a of the transport vehicle 55 is formed lower than the periphery of the load 55a, when loading bulky crops such as trunk-cut mushrooms T such as tobacco T, the center of the load 55a is high even if the load is large. It is unlikely to cause many crops to be stably loaded on the loading platform 55a.
[0050]
Moreover, since the transport vehicle 55 folds the left and right frames 56, 56 on the carrier 55a, the transport vehicle 55 itself can be efficiently transported and stored.
[Brief description of the drawings]
FIG. 1 is a side view of a tobacco stem reaper.
FIG. 2 is a plan view of the tobacco stem reaper.
FIG. 3 is a partial longitudinal sectional view of the front side of the tobacco stem reaper.
FIG. 4 is a partial longitudinal sectional view of the rear side of the tobacco stem mower.
FIG. 5 is a plan view showing a trunk cutting operation state by a tobacco trunk mower and a crop carrier.
FIG. 6 is a side view of a crop carrier.
FIG. 7 is a plan view of a crop carrier.
FIG. 8 is a perspective view of a crop carrier.
FIG. 9 is a front view of a crop carrier.
FIG. 10 is a rear view showing the movement of the carrier from the carrier to the truck.
FIG. 11 is a side view showing a truck loaded state of the crop carrier.
FIG. 12 is a plan view showing a truck loaded state of the crop carrier.
[Explanation of symbols]
Reference Signs List A Tobacco stem mower B Crop carrier C Truck T Tobacco U Row 50 Carriage 51, 51 Driving unit 52 Traveling device 53 Carriage carrier 54 Operating unit 55, 55 Carriage 55a Carriage 55b Carriage transportation 55b Wheels 56, 56 Frame bodies 56a, 56a Inclined parts 57, 57 Opening parts 58 Brake operation lever 59 ... Shaft 60 ... Fixing means 61 Truck bed
