JP3645775B2 - Conveyor equipment and harvester - Google Patents

Conveyor equipment and harvester Download PDF

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JP3645775B2
JP3645775B2 JP2000038865A JP2000038865A JP3645775B2 JP 3645775 B2 JP3645775 B2 JP 3645775B2 JP 2000038865 A JP2000038865 A JP 2000038865A JP 2000038865 A JP2000038865 A JP 2000038865A JP 3645775 B2 JP3645775 B2 JP 3645775B2
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transport
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JP2001224219A (en
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元紀 佐藤
貴之 戸谷
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松山株式会社
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Description

【０００１】
【発明の属する技術分野】
本発明は、農作物等の被搬送物を搬送する搬送装置およびこの搬送装置を備えた収穫機に関する。
【０００２】
【従来の技術】
従来の収穫機としての葉菜類収穫機に用いられているコンベヤ装置は、単に、被搬送物である葉菜類を一つずつ連続的に収容コンテナに向けて搬出する構成が採られている。
【０００３】
【発明が解決しようとする課題】
このため、例えば所定量の葉菜類を収容コンテナ内に適切に収容するためには、上記コンベヤ装置の搬送方向下流において、作業者が一つずつ連続的に搬出される葉菜類を適宜に手に取り、収容コンテナ内に移し入れる作業が必要となる等、搬送方向下流での葉菜類の取扱いが比較的煩雑となる問題を有している。
【０００４】
本発明は、このような点に鑑みなされたもので、搬送方向下流での被搬送物の取扱いを容易にできるコンベヤ装置および収穫機を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１記載のコンベヤ装置は、被搬送物を搬送する第１の搬送手段と、この第１の搬送手段の下流位置に、被搬送物を集積可能な集積姿勢から被搬送物を搬出可能な搬出姿勢へと姿勢変更されるように搬送方向の一端側を中心として回動可能に設けられ、前記第１の搬送手段からの被搬送物を搬送する第２の搬送手段と、前記集積姿勢にある前記第２の 搬送手段に集積される被搬送物の量が所定量に達した場合に、前記第２の搬送手段を前記集積姿勢から前記搬出姿勢へと姿勢変更させ、所定量の被搬送物を搬出させる駆動手段とを具備し、前記第２の搬送手段は、搬送終端側が上方を向いた集積姿勢から搬送終端側が下方を向いた搬出姿勢へと姿勢変更されるように、搬送始端側を中心として回動可能に設けられ、前記第１の搬送手段および前記第２の搬送手段の各々は、同じ曲率半径の円弧形状に形成され、前記第２の搬送手段は、被搬送物を集積する前の初期状態では搬送終端側が前記第１の搬送手段の円弧状の搬送方向に沿った基準位置より円弧中心側に位置し、被搬送物を集積するに従ってこの被搬送物による押圧で搬送始端側を中心として回動するものである。
【０００６】
そして、この構成では、集積姿勢にある第２の搬送手段に集積される被搬送物の量が所定量に達した場合に、駆動手段が第２の搬送手段を集積姿勢から搬出姿勢へと姿勢変更させ、所定量の被搬送物を搬出させるので、従来のように被搬送物を一つずつ連続的に搬出する構成に比べて、搬送方向下流での被搬送物の取扱いが容易になる。また、駆動手段が、第２の搬送手段の姿勢を搬送終端側が上方を向いた集積姿勢から搬送終端側が下方を向いた搬出姿勢へと変更させるため、所定量の被搬送物を適切に搬出可能である。さらに、第２の搬送手段は、被搬送物を集積する前の初期状態では搬送終端側が第１の搬送手段の円弧状の搬送方向に沿った基準位置より円弧中心側に位置し、被搬送物を集積するに従ってこの被搬送物による押圧で搬送始端側を中心として回動するので、第２の搬送手段を初期状態で基準位置上に位置させる構成に比べて、被搬送物の連続状態を維持しながら被搬送物を適切に巻き取れるため、被搬送物をコンパクトに集積可能である。
【０００７】
請求項２記載のコンベヤ装置は、請求項１記載のコンベヤ装置において、第２の搬送手段は、被搬送物の搬送速度が第１の搬送手段の搬送速度に比べて遅く設定されているものである。
【０００８】
そして、この構成では、第２の搬送手段の搬送速度を第１の搬送手段の搬送速度に比べて遅く設定したので、第１の搬送手段側で搬送方向に隣合う被搬送物同士を互いに近づけることができ、同じ搬送速度に設定した構成に比べて、被搬送物をコンパクトに集積可能である。
【０００９】
請求項３記載の収穫機は、機体と、この機体に設けられ、被搬送物である農作物を搬送する請求項１または２記載のコンベヤ装置と、このコンベヤ装置から搬出される農作物を収容する収容コンテナとを具備したものである。
【００１０】
そして、この構成では、コンベヤ装置から所定量の被搬送物がまとまって搬出されるため、搬送方向下流での被搬送物の取扱いが容易になり、従来必要であった作業者が葉菜類を適宜に手に取って収容コンテナ内に移し入れる作業等が不要になり、収穫作業効率が向上する。
【００１１】
【発明の実施の形態】
以下、本発明の収穫機の一実施の形態の構成を図面を参照して説明する。
【００１２】
図１ないし図６は、ハウス栽培等における圃場に作付けされた複条の農作物である葉菜類Ａを複条、例えば四条同時に収穫する半覆帯形で歩行型の収穫機としての葉菜類収穫機を示す図で、
これら図１ないし図６において、１は前低後高状の機体で、この機体１は、作業者による運転操作部２の操作により、圃場の地表面３上を所定の進行方向に走行するもので、前側下部にはクローラ部5a，5b，5cが並設され、後側下部には後輪部6a，6bが設けられている。なお、機体１の左右の幅寸法は、進行方向前側が後側より少し広くなっている。
【００１３】
また、この機体１は、葉菜類Ａの根部Ａ2 を複条同時に切断する根部切断装置７が前側下部に設けられているとともに、この根部切断装置７にて根部Ａ2 を切断された被搬送物である葉菜類Ａを搬送始端側から搬送終端側に向けて複条同時に搬送する左右一対の搬送装置8a，8bが前側下部から後側上部にわたって設けられている。さらに、この機体１の前端部には、葉菜類Ａの垂れた状態の葉部Ａ1 を徐々に起して分草するとともに葉菜類Ａを前記搬送装置8a，8bの搬送始端側に複条同時に案内する案内装置９が設けられており、後端部に前記搬送装置8a，8bの搬送終端側から搬出される葉菜類Ａを収容する一つの収容部10が設けられている。
【００１４】
前記根部切断装置７は、図１ないし図５に示すように、地表面３下の土中を走行して葉菜類Ａの根部Ａ2 を切断する平面視略く字形状の左右一対の根切り刃11a ，11b を備え、これらの根切り刃11a ，11b の各々は、機体１のフレーム13に取り付けられた刃保持部15a ，15b にて略水平状に支持され、機体１の左右方向に並んで位置し、機体１の前後方向に振動可能となっている。なお、根切り刃11a ，11b の左右両端側に、図２に示されるように複数、例えば四つの切断部16a ，16b ，16c ，16d が形成されている。
【００１５】
そして、これらの刃保持部15a ，15b の各々は、根切り刃11a ，11bを振動させる振動手段18、根切り刃11a ，11b の土中の深さ位置を調節する深さ位置調節手段19等にて構成されている。
【００１６】
この振動手段18は、図３および図５に示すように、フレーム13に取り付けられた互いに離間対向した一対の細長矩形板状の取付枠21を有し、これらの両取付枠21間には、機体１の左右水平方向に軸方向を有する第１の支軸22および第２の支軸23が機体１の前後に互いに離間対向して平行に架け渡されている。この第１の支軸22は、軸方向の両端近傍に中間部材24の一側が連結固定され、これらの中間部材24の他側には共通の軸部材25が架け渡され、この軸部材25の軸方向の両端近傍には第１の揺れ部材26の上部が回動可能に連結されている。また、第２の支軸23は、軸方向の両端近傍に第２の揺れ部材27の上部が回動可能に連結されており、これら第１の揺れ部材26および第２の揺れ部材27の下部にて共通の振動アーム体30が保持されている。
【００１７】
この振動アーム体30は、先端側に向って下方向に傾斜状に位置し、先端下部に前記根切り刃11a ，11b の中央部が固着されている。また、この振動アーム体30の基端部には、機体１の左右水平方向に軸方向を有する回転体である押圧ローラ31が回転可能に設けられているとともに、ばね連結部32が上方に向って突設されている。また、このばね連結部32には付勢体としてのコイルばね33の一端部が連結されており、このコイルばね33の他端部が、前記両取付枠21の端縁を連結した連結部分21a に突出形成されたばね連結部34に連結されている。
【００１８】
そして、振動アーム体30の押圧ローラ31は、コイルばね33の付勢力により駆動軸35に取り付けられた楕円板形状の回転体である刃用板カム36に押し付けられ、駆動軸35の駆動回転に基づくこれら押圧ローラ31および刃用板カム36の回転により根切り刃11a ，11b が振動アーム体30とともに振動する。
【００１９】
一方、前記深さ位置調節手段19は、図３および図５に示すように、前記第１の支軸22の軸方向の中央近傍に一側が連結固定された中間部材41を有し、これらの中間部材41の他側には共通の軸部材42が架け渡され、この共通の軸部材42の軸方向の中央部に略筒状の連結部材43の一端部が回動可能に連結されている。
【００２０】
この連結部材43の他端面は開口しており、他端内周面には雌ねじ部44が形成されている。また、この連結部材43の雌ねじ部44には、タンブラ等の支持部材45にて回動可能に支持された回動杆体46の一端部に形成した雄ねじ部47が螺合されている。この回動杆体46の他端部には、継手部材48を介して深さ調節ハンドル50が取り付けられている。
【００２１】
そして、作業者が深さ調節ハンドル50を回すと、回動杆体46の回動に従って連結部材43がこの回動杆体46の軸方向に移動し、その結果、振動アーム体30の傾斜角度が変化し、根切り刃11a ，11b の深さ位置が変位する。
【００２２】
前記案内装置９は、図２および図４に示すように、複数、例えば四つの案内部51a ，51b ，51c ，51d にて構成され、案内部51a ，51b ，51c ，51d の各々は、案内始端側が下方向に傾斜した細長筒状の左右一対の回転案内体52a ，52b を備えているとともに、これらの両回転案内体52a ，52b の下方位置に位置する小回転案内体53a ，53b を備えている。この小回転案内体53a ，53b は、回転案内体52a ，52b と同様、案内始端側が下方向に傾斜しているが、この傾斜角度は回転案内体52a ，52b の傾斜角度に比べて小さく設定され、小さい葉部Ａ1 に適切に対応できるようになっている。
【００２３】
また、これらの回転案内体52a ，52b の各々および小回転案内体53a ，53b の各々は、案内終端側が葉菜類Ａ側に向う方向に傾斜、すなわち、案内終端側が互いに接近する方向に傾斜している。なお、小回転案内体53a ，53b の葉菜類Ａ側への傾斜角度は、図３に示すように、回転案内体52a ，52b の傾斜角度に比べて大きく設定され、小さい葉部Ａ1 に適切に対応できるようになっている。なお、回転案内体52a ，52b および小回転案内体53a ，53b は、機体１の前後方向に振動可能となっている。
【００２４】
そして、これらの四つの案内部51a ，51b ，51c ，51d の回転案内体52a ，52b のうち、案内部51a の進行方向右側の回転案内体52b 、案内部51b の進行方向左側の回転案内体52a 、案内部51c の進行方向右側の回転案内体52b 、および、案内部51d の進行方向左側の回転案内体52a は、前記振動アーム体30の先端部に取り付けられた弾性支持体55にて支持されている。
【００２５】
すなわち、これらの回転案内体52a ，52b は、弾性支持体55にて支持された取付部材56に回転自在に取り付けられており、振動アーム体30の振動、つまり根切り刃11a ，11bの振動に従って振動可能となっている。また、これらの回転案内体52a ，52b は、深さ調節ハンドル50にて、根切り刃11a ，11b の深さ位置の調節とともに、高さ位置を調節可能である。
【００２６】
なお、弾性支持体55は、機体１の進行方向に長手方向を有する細長形状のばね材である板ばね、或いは棒状のばね等にて形成され、長手方向の一端側が略１８０度折り曲げられて、この折り曲げらた部分の下面に前記取付部材56が固定されている。また、対応する小回転案内体53a ，53b についても、同様に、前記振動アーム体30の先端部に取り付けられた弾性支持体55にて支持され、振動可能でかつ深さ調節ハンドル50で高さ位置調節可能である。
【００２７】
また、前記四つの案内部51a ，51b ，51c ，51d の回転案内体52a ，52b のうち、案内部51a の進行方向左側の回転案内体52a 、案内部51b の進行方向右側の回転案内体52b 、案内部51c の進行方向左側の回転案内体52a 、および、案内部51d の進行方向右側の回転案内体52b は、フレーム13に取り付けた案内体振動部60の先端部に取り付けられた弾性支持体55にて支持されている。
【００２８】
すなわち、これらの回転案内体52a ，52b および対応する小回転案内体53a ，53b は、弾性支持体55にて支持された取付部材56に回転自在に取り付けられており、案内体振動部60の振動に従って振動可能となっている。また、これらの回転案内体52a ，52b および小回転案内体53a ，53b は、例えば弾性支持体55の取替え等にて高さ位置を調節する。なお、機体１の左右両端の案内部51a ，51d の取付部材56には、回転案内体52a ，52b および小回転案内体53a ，53b に対向して同一構造の回転体52c ，52c および小回転体53c ，53c が回転自在に取り付けられている。
【００２９】
また、案内体振動部60は、図３および図６に示すように、フレーム13に取り付けられた互いに離間対向した一対の細長矩形板状の取付枠61を有し、この取付枠61の進行方向前側には機体１の左右水平方向に軸方向を有する支軸62が取り付けられ、これらの支軸62には第１の揺れ部材63の上部が回動可能に連結されている。また、取付枠61の進行方向後側には機体１の左右水平方向に軸方向を有する支軸64が取り付けられ、これらの支軸64には第２の揺れ部材65の上部が回動可能に連結されており、これら第１の揺れ部材63および第２の揺れ部材65の下部にて共通の案内体用振動アーム体70が保持されている。
【００３０】
この案内体用振動アーム体70は、先端側に向って下方向に傾斜状に位置し、先端上部に対応する前記弾性支持体55が取り付けられている。また、この案内体用振動アーム体70の基端部には、機体１の左右水平方向に軸方向を有する二つの回転体である押圧ローラ71が回転可能に設けられているとともに、二つのばね連結部72が上方に向って突設されている。また、これらのばね連結部72には二つの付勢体としてのコイルばね73の一端部が連結されており、これらのコイルばね73の他端部が、前記両取付枠61の端縁を連結した連結部分61a に突出形成した二つのばね連結部74に連結されている。
【００３１】
そして、案内体用振動アーム体70の押圧ローラ71は、コイルばね73の付勢力により前記駆動軸35に取り付けられた楕円板形状の回転体である刃用板カム76に押し付けられ、駆動軸35の駆動回転に基づくこれら押圧ローラ71および刃用板カム76の回転により回転案内体52a ，52b および対応する小回転案内体53a ，53b が案内体用振動アーム体70とともに振動する。
【００３２】
また、四つの案内部51a ，51b ，51c ，51d の回転案内体52a ，52b および小回転案内体53a ，53b は、共通の駆動軸35の駆動回転により同期的に振動するとともに、機体１の進行に基づいて葉菜類Ａの垂れた葉部Ａ1 の下方に入り込み、この葉部Ａ1 の下面に接触して葉菜類Ａから力を受けて回転する。この回転方向は葉菜類Ａ側の部分が上から下へ向う方向である。そして、回転案内体52a ，52b および小回転案内体53a ，53b は、振動しつつ回転することで、対応する大きさの葉部Ａ1 を傷めることなくほぐすようにして葉菜類Ａの垂れた状態の葉部Ａ1 を徐々に起しつつ分草し、この分草した葉菜類Ａを前記搬送装置8a，8bの搬送始端側に案内する。
【００３３】
前記搬送装置8a，8bは、葉菜類Ａを搬送始端側から搬送終端側に向けて搬送するとともに、搬送終端側での葉菜類Ａの条数が搬送始端側での葉菜類Ａの条数より少なくなる、例えば条数が半減するように搬送途中で葉菜類Ａを合流させるもので、かつ、搬送途中で葉菜類Ａを立ち姿勢からやや横倒れした姿勢を経て横倒れ姿勢へと姿勢変更させるものである。
【００３４】
そして、これらの搬送装置8a，8bの各々は、図１および図４に示すように、葉菜類Ａを前低後高の傾斜方向である斜め上方に搬送する第１の搬送部81と、この第１の搬送部81の搬送終端側の下方位置に搬送始端側が位置しこの第１の搬送部81からの葉菜類Ａを搬送面上に載置させて搬送する第２の搬送部82とを備えている。
【００３５】
ここで、機体１の進行方向右側に位置する搬送装置8bの第１の搬送部81は、互いに平行状に位置する複数列、例えば二列の搬送経路間隙85，86に沿って葉菜類Ａを複条同時に搬送する複条搬送手段87、一列の搬送経路間隙88に沿って葉菜類Ａを搬送する単条搬送手段89、複条搬送手段87と単条搬送手段89との間に位置して複条搬送手段87の複数列の搬送経路間隙85，86の各々の搬送終端から単条搬送手段89の一列の搬送経路間隙88の搬送始端へと葉菜類Ａを中継搬送する中継搬送手段90等にて構成されている。
【００３６】
この複条搬送手段87は、搬送始端側が下方向に傾斜した状態で機体１の前側に配設されており、この搬送始端に前記案内装置９から葉菜類Ａが導入され、この導入された葉菜類Ａを立ち姿勢のまま姿勢変更することなく斜め上方に搬送するものである。
【００３７】
そして、この複条搬送手段87は、機体１の前後方向に細長形状の搬送経路間隙85，86を介して互いに離間対向した状態での走行により、葉菜類Ａを締付け挟持することなく載置状態で搬送する例えば二対をなす無端形状の可撓性を有する例えばゴム製の対向搬送ベルト91を有している。
【００３８】
これらの対向搬送ベルト91の各々は、図７および図８に示すように、互いに離間対向した状態で位置し上下方向に軸方向を有する回転体である駆動プーリ体93a，93b および従動プーリ94に走行可能に巻き掛けられている。なお、駆動プーリ体93a，93b および従動プーリ94のそれぞれの軸方向は互いに平行で、所定の傾斜面に対して直交する方向に一致している。また、駆動プーリ体93a，93b には一つの支軸に複数のプーリが取り付けられている。
【００３９】
この対向搬送ベルト91の表面には、葉菜類Ａに当接してこの葉菜類Ａの搬送経路間隙85，86からの落下を防止する複数の弾性変形可能な当接突部95が一体に突出形成されており、これらの当接突部95の各々は走行方向に互いに所定間隔をおいた状態で全周にわたって並んで位置している。
【００４０】
また、これらの当接突部95の各々は、可撓性を有する例えばゴム製の略細長矩形状のシート片部材の長手方向の両端部が幅狭平帯状のベルト基部91a の表面に接続されて円弧状、例えば半円形状に形成されている。なお、当接突部95の半径は、駆動プーリ体93a および従動プーリ94のそれぞれの半径と略等しい寸法に設定されている。
【００４１】
そして、これらの当接突部95の各々は、搬送経路間隙85，86の搬送始端位置および搬送終端位置では、弾性変形して扁平状になり、ベルト基部91a の表面からの突出量が減少する。すなわち、ベルト基部91a が駆動プーリ体93a，93b および従動プーリ94の外周面に沿って円弧状になると、当接突部95のベルト基部91a との接続部分近傍が略直角になるまで大きく折れ曲り、当接突部95の接続部分近傍以外の部分が平面に近い形状になる。
【００４２】
なお、各当接突部95は、搬送始端位置および搬送終端位置の通過後には、もとの半円形状に復帰する。また、離間対向する対向搬送ベルト91の当接突部95の位置関係は、図７に示すように、葉菜類Ａの葉部Ａ1 の損傷をより効果的に防止するために、細長形状の搬送経路間隙85，86の全長にわたって略同一幅空間が保たれるように、交互位置に設定されている。なお、図示しないが、対向する対向搬送ベルト91の当接突部95同士が互いに向き合う同一位置に位置するように設定してもよい。
【００４３】
前記単条搬送手段89は、搬送始端側が下方向に傾斜した状態で機体１の後側に配設されており、この搬送始端に前記中継搬送手段90から葉菜類Ａが導入され、この導入された葉菜類Ａを図１２に示すように立ち姿勢からやや横倒れした姿勢に徐々に姿勢変更させながら斜め上方に搬送するものである。
【００４４】
そして、この単条搬送手段89は、機体１の前後方向に細長形状の搬送経路間隙88を介して互いに離間対向した状態での走行により、葉菜類Ａを締付け挟持することなく載置状態で搬送する例えば一対をなす無端形状の可撓性を有する例えばゴム製の対向搬送ベルト101a，101bを有している。
【００４５】
これらの対向搬送ベルト101a，101bは、図１、図８および図１２に示すように、上下方向に軸方向を有する回転体である駆動プーリ体93a 、従動プーリ104 およびガイドプーリ105 に走行可能に巻き掛けられている。
【００４６】
そして、これらの駆動プーリ体93a 、従動プーリ104 およびガイドプーリ105 のそれぞれの軸方向は互いに平行でなく、図１２に示されるように従動プーリ104 の軸方向がガイドプーリ105 の軸方向および駆動プーリ体93a の軸方向に対して機体１の幅方向中央側に向って所定の角度だけ傾斜している。このため、対向搬送ベルト101a，101bは、その傾斜角度に応じて捩じられた状態で巻き掛けられている。
【００４７】
また、機体１の幅方向中央寄りに位置する一方の対向搬送ベルト101aは、葉菜類Ａが機体１の幅方向中央側に向って適切に倒れるように、他方の対向搬送ベルト101bと比べて搬送終端部が機体１の前側位置に位置するとともに下方位置に位置している。なお、この対向搬送ベルト101a の搬送終端部は、前記第２の搬送部82の搬送始端部の上方位置に位置している。
【００４８】
また、これらの対向搬送ベルト101a，101bの表面には、前記複条搬送手段87の対向搬送ベルト91と同じように、葉菜類Ａの搬送経路間隙88からの落下を防止する複数の弾性変形可能な当接突部106 が突出形成されている。
【００４９】
前記中継搬送手段90は、一端側が複数列の搬送経路間隙85，86の各々の搬送終端部に連通しかつ他端側が一列の搬送経路間隙88の搬送始端部に連通した中継搬送経路間隙88a を有し、この中継搬送経路間隙88a に沿って葉菜類Ａを立ち姿勢のまま姿勢変更することなく斜め上方に搬送するものである。なお、中継搬送経路間隙88a 、搬送経路間隙85，86のそれぞれの幅寸法は、葉菜類Ａの大きさに応じて適宜に設定されている。
【００５０】
そして、この中継搬送手段90は、機体１の前後方向に対して所定方向に少し傾斜した方向に長手方向を有する細長形状の中継搬送経路間隙88a の一側方にのみ位置する無端形状の可撓性を有する中継搬送ベルト111a，111bを有し、この中継搬送ベルト111a，111bは例えば断面略円形状のゴム材料等にて形成されている。
【００５１】
これらの中継搬送ベルト111a，111bの各々は、図８および図９に示すように、上下方向に軸方向を有する回転体である駆動プーリ体93b および従動プーリ112 ，113 に走行可能に巻き掛けられている。なお、駆動プーリ体93b および従動プーリ112 ，113 のそれぞれの軸方向は互いに平行で、所定の傾斜面に対して直交する方向に一致している。さらに、中継搬送ベルト111a，111bがそれぞれ有する一方の従動プーリ112 と駆動プーリ体93b との間には、主として動力伝達用の断面円形の丸ベルト114 が走行可能に巻き掛けられている。
【００５２】
そして、この丸ベルト114 の動力伝達に基づいて、中継搬送手段90の一方の中継搬送ベルト111aと前記対向搬送ベルト101aの一部とが、中継搬送経路間隙88a を介して互いに離間対向した状態で走行し、葉菜類Ａを締付け挟持することなく搬送する。また同時に、他方の中継搬送ベルト111bと前記対向搬送ベルト101bの一部とが、中継搬送経路間隙88a を介して互いに離間対向した状態で走行し、葉菜類Ａを締付け挟持することなく搬送する。そして、この中継搬送経路間隙88a の合流部分にて葉菜類Ａがまとめられ、中継搬送手段90に二条で搬入された葉菜類Ａが半数の一条となって搬出される。
【００５３】
なお、前記複条搬送手段87の対向搬送ベルト91、前記単条搬送手段89の対向搬送ベルト101a，101b、前記中継搬送手段90の中継搬送ベルト111a，111bおよび丸ベルト114 の各々は、所定の一部分を除いてカバー体115 にて覆われている。
【００５４】
また、機体１の進行方向右側に位置する搬送装置8bの第２の搬送部82は、図１３に示すように、機体１の前後方向に長手方向を有する左右一対の細長形状のコンベヤフレーム121a，121bを機体１の後側に有している。
【００５５】
これらのコンベヤフレーム121a，121bのうち、機体１の幅方向中央側に位置する一方のコンベヤフレーム121aは、機体１の前高後低の傾斜方向に沿って位置している。機体１の幅方向端部側に位置する他方のコンベヤフレーム121bは、機体１の前後水平方向に沿って位置している。また、これらの両コンベヤフレーム121a，121b間には、複数、例えば三つの搬送ローラ122 ,123 ,124 が互いに異なる傾斜角度をもって回転可能に並列軸架されている。
【００５６】
そして、第２の搬送部82の各搬送ローラ122 ,123 ,124 は、動力伝達用のチェーン等の無端体125 の走行による所定方向への同期駆動回転時に、前記単条搬送手段89の搬送終端部から自重で落下する葉菜類Ａを受け取り、この受け取った葉菜類Ａを横倒れに近い姿勢から横倒れの姿勢へと徐々に姿勢変更させながら搬送する。葉菜類Ａは、単条搬送手段89からの落下時に、やや横倒れした姿勢から横倒れに近い姿勢に姿勢変更する。
【００５７】
上記構成の搬送装置8bと機体１の進行方向左側に位置する搬送装置8aとは、互いに左右対称となっており、搬送装置8aも、前記搬送装置8bと同様の構成を備えている。
【００５８】
そして、これらの両搬送装置8a，8bの下流位置には、一つの集積用のコンベヤ装置140 が配置されており、このコンベヤ装置140 は、両搬送装置8a，8bからの葉菜類Ａを受け取って集積し、所定量の葉菜類Ａをまとめた状態で搬出するものである。なお、搬送装置8a，8bの搬送速度は、機体１の走行速度と同じか、走行速度より少し遅く設定してある。
【００５９】
この集積用のコンベヤ装置140 は、前記両搬送装置8a，8bの搬送終端部に固定的に支持された円弧状の第１の搬送手段141 を備え、この第１の搬送手段141 の下流位置には、第２の搬送手段142が、搬送始端側を中心として回動可能に配置されており、この円弧状の第２の搬送手段142 は、搬送終端側が上方例えば略鉛直上向きを向いた集積姿勢と搬送終端側が下方例えば略鉛直下向きを向いた搬出姿勢との間で姿勢変更可能となっている。また、この第２の搬送手段142 は、第１の搬送手段141 の搬送終端部にて片持ち支持されている。
【００６０】
なお、第１の搬送手段141 および第２の搬送手段142 は、例えば、一方の面側で葉菜類Ａがロール状に集積されるように共通の円弧中心Ｏを中心とする上方に向って開口した略半円弧状に形成されている。また、第１の搬送手段141 、第２の搬送手段142 等にて搬送集積手段143 が構成されている。
【００６１】
この第１の搬送手段141 は、図１３および図１４に示すように、略水平な搬送方向に沿って葉菜類Ａをこの葉菜類Ａが円弧の移動軌跡を描くように搬送するもので、機体１の前後方向に長手方向を有する互いに離間対向した左右一対の固定フレーム145a，145bを有し、各固定フレーム145a，145b は、円弧中心Ｏを中心とする円弧状でかつ細長形状に形成され、長手方向の一端部が前記両搬送装置8a，8bのコンベヤフレーム121aに連結固定されている。なお、固定フレーム145a，145bの長手方向の両端部は、略同じ高さ位置に位置している。
【００６２】
そして、これらの両固定フレーム145a，145b間には、複数、例えば五つの第１搬送ローラ146 が駆動回転可能に軸架され、各第１搬送ローラ146 の軸方向は機体１の左右水平方向に一致している。
【００６３】
なお、固定フレーム145a，145bの一端部間に軸架した第１搬送ローラ146 の支軸部146aと前記第２の搬送部82の搬送ローラ124 の支軸部124aとの間には、スプロケット等の回転体を介してチェーン等の動力伝達用の無端体147が巻き掛けられている。また、各第１搬送ローラ146 の支軸部146a間にもスプロケット等の回転体を介してチェーン等の動力伝達用の無端体148 が巻き掛けられ、両無端体147,148の走行により各第１搬送ローラ146 が所定方向へ同期的に駆動回転可能となっている。
【００６４】
一方、前記第２の搬送手段142 は、互いに離間対向した左右一対の可動フレーム150a，150bを有し、各可動フレーム150a，150b は、円弧状でかつ細長形状に形成されている。なお、可動フレーム150a，150b は、前記固定フレーム145a，145bと同じ長さでかつ同じ曲率半径をもった円弧状に形成されており、集積姿勢の状態では可動フレーム150a，150bの円弧中心が側面視で前記円弧中心Ｏに一致する。
【００６５】
また、各可動フレーム150a，150bの長手方向の一端部が、前記各固定フレーム145a，145bの長手方向の他端部に支軸部146aを介して回動可能に連結されており、各可動フレーム150a，150bの長手方向の他端部は、自由端部となっており、図４に示すように、集積姿勢の状態では円弧中心Ｏより高い位置で前記運転操作部２の近傍位置に位置するが、搬出姿勢の状態では前記収容部の近傍位置に位置する。
【００６６】
そして、これらの両可動フレーム150a，150b間には、複数、例えば三つの第２搬送ローラ151 が駆動回転可能に軸架され、各第２搬送ローラ151 の軸方向は機体１の左右水平方向に一致している。
【００６７】
なお、可動フレーム150a，150bの一端近傍間に軸架した第２搬送ローラ151 の支軸部151aと、前記固定フレーム145a，145bの他端部間に軸架した第１搬送ローラ146 の支軸部146aとの間には、スプロケット等の回転体を介してチェーン等の動力伝達用の無端体152 が巻き掛けられている。また、各第２搬送ローラ151 の支軸部151a間にもスプロケット等の回転体を介してチェーン等の動力伝達用の無端体153 ,154 が巻き掛けられ、これらの無端体152 ,153 ,154 の走行により各第２搬送ローラ151 が前記各第１搬送ローラ146 とともに所定方向へ同期的に駆動回転する。また、各第２搬送ローラ151 による搬送速度は、各第１搬送ローラ146 による搬送速度と比べて、少し遅く設定されているが、同じに設定してもよい。なお、動力伝達用の無端体147,148 ,152 ,153 ,154 、スプロケット等の回転体等は、カバー体155 にて覆われている。
【００６８】
また、集積用のコンベヤ装置140 は、集積姿勢にある第２の搬送手段142 および第１の搬送手段141 のそれぞれの上面側に集積される葉菜類Ａの量が予め設定された所定量に達した場合に、所定量の葉菜類Ａによる押圧のみで付勢方向を変換して、第２の搬送手段142 を集積姿勢から搬出姿勢へと自動的に姿勢変更させる駆動手段、例えば付勢手段としての引張りコイルばね156 を備えている。
【００６９】
すなわち、この引張りコイルばね156 は、前記搬送集積手段143 にて集積される葉菜類Ａの量が予め設定された所定量に達するまでは、搬送集積手段143 の搬送終端側を葉菜類Ａ側に向けて相対的に近づく方向に付勢することでこの搬送終端側を閉鎖状態に保持するとともに、搬送集積手段143 にて集積される葉菜類Ａの量が予め設定された所定量に達した場合には、葉菜類Ａの重力を受けて付勢方向を変換することにより、搬送集積手段143 の搬送終端側を閉鎖状態から開放状態にし、所定量の葉菜類Ａを収容部10に向けて搬出させるものである。
【００７０】
この引張りコイルばね156 の一端部は第１の搬送手段141 の搬送終端側に取り付けられ、他端部が第２の搬送手段142 の搬送始端側に取り付けられており、この引張りコイルばね156 は第２の搬送手段142 の回動に対応して軸方向に変形可能となっている。
【００７１】
また、この引張りコイルばね156の一端部は、固定フレーム145aに突出形成した軸状の一方のばね保持部157 に連結され、他端部が可動フレーム150aに突出形成した軸状の他方のばね保持部158 に連結されている。
【００７２】
そして、この引張りコイルばね156 は、第２の搬送手段142 が集積姿勢にある状態、すなわち、搬送集積手段143 の搬送終端側が閉鎖状態にある状態では、第２の搬送手段142 を第１の搬送手段141 側に向けてそれぞれの上面側が接近しようとする一方向に付勢し、第２の搬送手段142 が搬出姿勢にある状態、すなわち、搬送集積手段143 の搬送終端側が開放状態にある状態では、第２の搬送手段142 を第１の搬送手段141 側に向けてそれぞれの下面側が接近しようとする他の方向に付勢するように設定されている。
【００７３】
なお、図１４において、160 は回動規制手段としてのストッパ体で、このストッパ体160 は、第２の搬送手段142 の集積姿勢の状態時に、可動フレーム150a，150bに係脱自在に当接し、引張りコイルばね156 の付勢力に抗して可動フレーム150a，150bの回動を規制し、第２の搬送手段142 を所定の集積姿勢に維持し、搬送集積手段143 の搬送終端側を閉鎖状態に保持している。すなわち、第２の搬送手段142 は、葉菜類Ａを集積する前の初期状態では、ストッパ体160にて保持されることで、第１の搬送手段141 の円弧状の搬送方向に沿った基準位置上に位置している。
【００７４】
そして、集積用のコンベヤ装置140 の搬送集積手段143 は、各第１搬送ローラ146 、各第２搬送ローラ151 の所定方向への同期駆動回転時に、第２の搬送手段142 が集積姿勢にあるときに、前記両搬送装置8a，8bの第２の搬送部82,82の搬送終端部から一つずつ連続的に搬出されてくる葉菜類Ａを受け取り、この受け取った横倒れ姿勢の葉菜類Ａを円弧状の搬送方向に沿って順次搬送する。
【００７５】
すると、図１５に示すように、第１の搬送手段141 および第２の搬送手段142 のそれぞれの上面側では、葉菜類Ａがロール状に集積される。すなわち、横倒れ姿勢の葉菜類Ａが次々と巻かれ、円柱状、或いは円柱状に近い形状に集積される。
【００７６】
そして、図１４に示すように、例えば円柱状に集積された葉菜類Ａ0 の量が、予め設定された所定量に達すると、引張りコイルばね156 が、その所定量に達したことを検出し、この検出により付勢方向を切り換え、第２の搬送手段142 を集積姿勢から搬出姿勢へと姿勢変更させる。
【００７７】
すなわち、引張りコイルばね156 は、葉菜類Ａの増大により、軸方向に伸長して長さが長くなるとともに一方のばね保持部157 を中心として徐々に回動し、この引張りコイルばね156 の回動とともに第２の搬送手段142 の可動フレーム150a，150bが一端部の回動中心である支軸部146aを中心として回動する。
【００７８】
そして、この可動フレーム150a，150bの回動により、他方のばね保持部158 が、図１４に示す一方のばね保持部157 と可動フレーム150a，150bの回動中心とを結んだデットラインである基準線Ｘ上を通過した瞬間、すなわち、集積中の葉菜類Ａの量が予め設定された所定量に達した瞬間に、葉菜類Ａ0 の重量等に基づく第２の搬送手段142 に働く力が引張りコイルばね156 の付勢力に打ち勝ち、この可動フレーム150a，150bが、図示時計回りの方向に瞬間的に大きく回動し、搬送集積手段143 の搬送終端側を閉鎖状態から開放状態になり、第２の搬送手段142 が集積姿勢から搬出姿勢へと姿勢変更する。
【００７９】
なお、引張りコイルばね156 は、前記基準線Ｘ上に沿って位置したとき、すなわち、集積中の葉菜類Ａの量が所定量に達したときに、軸方向長さが最大となる。
【００８０】
そして、第２の搬送手段142 が搬出姿勢になると、所定量の葉菜類Ａ0 は、第１搬送ローラ146 および第２搬送ローラ151 の回転により押されつつ自重にて落下し、第２の搬送手段142 の搬送終端部から円柱状にまとめられた状態でスムーズに搬出され、図４に示すように収容部10の収容コンテナ126 内に収容される。
【００８１】
また、この収容部10の収容コンテナ126 は、図４に示すように、上面を開口した箱状のもので、フレーム13のコンテナ載置部13a 上に着脱自在に取り付けられている。なお、この収容コンテナ126 は、前記コンベヤ装置140 の第２の搬送手段142 からの所定量の葉菜類Ａ0 を適切に受けることができるように、上面開口部126aが機体１の前斜め上方を向いた傾斜状でコンテナ載置部13a 上に載置されている。なお、このコンテナ載置部13a は昇降可能な構成或いは揺動可能な構成としてもよい。
【００８２】
一方、図４において、131 は電力源で、この電力源131 にはモータ等の例えば一つの駆動源132 が接続されている。そして、この駆動源132 からの駆動力は、チェーン伝動機構或いはベルト伝動機構等の伝動手段133 を介して、前記駆動軸35に伝達されるとともに、搬送装置用駆動軸134 ，135 等を経て前記駆動プーリ体93a，93b および搬送ローラ122 に伝達され、かつ、動力伝達用の無端体125 ,147 ,148 ,152 ,153 ,154 等を介して各搬送ローラ122 ,123 ,124、各第１搬送ローラ146 、各第２搬送ローラ151 に伝達される。
【００８３】
なお、これらの搬送装置用駆動軸134 ，135 は、前記左右一対の搬送装置8a，8bに共通のものであるので、これらの両搬送装置8a，8bの駆動プーリ体93a，93b および搬送ローラ122 は同期的に駆動回転する。また、この駆動源132 からの駆動力は、図４に示すように、チェーン伝動機構或いはベルト伝動機構等の伝動手段136 を介してクローラ部5a，5b，5cに伝達されるとともに、後輪部6a，6bにも伝達されるようになっている。
【００８４】
次に、上記一実施の形態の動作を説明する。
【００８５】
機体１の駆動源132 からの駆動力で、根部切断装置７の根切り刃11a ，11b が振動するとともに、案内装置９の回転案内体52a ，52b および小回転案内体53a ，53b が振動し、かつ、両搬送装置8a，8bの第１の搬送部81における複条搬送手段87の対向搬送ベルト91、単条搬送手段89の対向搬送ベルト101a，101b、中継搬送手段90の中継搬送ベルト111a，111bおよび丸ベルト114 が走行するとともに、第２の搬送部82および搬送集積手段143 が動作している状態の下、作業者が運転操作部２の操作により、機体１を進行方向に走行させる。
【００８６】
この機体１の走行により、案内装置９の案内部51a ，51b ，51c ，51d が、図１０に示すように、圃場に作付けされた複条の葉菜類Ａの垂れた状態の葉部Ａ1 を徐々に起して分草するとともに、葉菜類Ａを搬送装置8a，8bの搬送始端側に複条同時に案内する、
この案内途中において、根部切断装置７の根切り刃11a ，11b の切断部16a ，16b ，16c ，16d が、葉菜類Ａの根部Ａ2 を複条同時に切断する。
【００８７】
そして、この根部切断装置７にて根部Ａ2 を切断された葉菜類Ａは、左右一対の搬送装置8a，8bにて機体１の後側上部まで複条同時に搬送され、その後、
集積用のコンベヤ装置140 にて円柱状に集積される。そして、この集積された葉菜類Ａ0 は、収容部10の収容コンテナ126 内に所定量にまとめられた状態で収容される。なお、収容コンテナ126内で隣り合う所定量のまとまった葉菜類Ａ0 は、互いに重なり合うことなく適切に収容される。
【００８８】
そして、作業者が、機体１の向きを適宜に変え、圃場全体にわたって機体１を走行させることで、複条同時収穫により作業効率良く葉菜類Ａの収穫作業を完了する。
【００８９】
このようにして、上記一実施の形態によれば、集積用のコンベヤ装置140の引張りコイルばね156 が、搬送集積手段143 にて集積される葉菜類Ａの量が予め設定された所定量に達するまではこの搬送集積手段143 の搬送終端側を葉菜類Ａ側に向けて相対的に近づく方向に付勢してこの搬送終端側を閉鎖状態に保持する。また、この引張りコイルばね156 は、搬送集積手段143 にて集積される葉菜類Ａの量が予め設定された所定量に達したときには、付勢方向を自動変換することにより、搬送集積手段143 の搬送終端側を閉鎖状態から開放状態にし、この搬送終端部から所定量の葉菜類Ａをまとめた状態で搬出させるので、従来のように葉菜類Ａを一つずつ連続的に搬出する構成に比べて、この集積用のコンベヤ装置140 の搬送方向下流での葉菜類Ａに関する作業を容易にできる。しかも、引張りコイルばね156 による付勢方向の自動変換により、所定量の葉菜類Ａを自動で搬出できるので、より一層作業効率を向上できる。
【００９０】
また、集積姿勢にある第２の搬送手段142 に集積される葉菜類Ａの量が予め設定された所定量に達した場合に、第２の搬送手段142 が集積姿勢から搬出姿勢へと姿勢変更すると、第２の搬送手段142 から所定量の葉菜類Ａが例えば円柱状にまとめられた状態で搬出されるため、搬送方向下流での葉菜類Ａの取扱いが容易になり、収穫作業効率を向上できる。
【００９１】
さらに、引張りコイルばね156 が、集積姿勢にある第２の搬送手段142 に集積される葉菜類Ａの量が予め設定された所定量に達したことを検出し、この検出により付勢方向を一方向から他の方向に切り換え、第２の搬送手段142 を集積姿勢から搬出姿勢へと姿勢変更させるので、所定量の葉菜類Ａの自動排出で収穫作業効率を向上でき、しかも、油圧シリンダ等の駆動手段を用いる構成に比べて、構成が簡単であり、コストがかからず、生産性を向上できる。
【００９２】
また、集積用のコンベヤ装置140にて葉菜類Ａをロール状に集積し、この集積した葉菜類Ａを収容コンテナ126 内に収容するため、収容効率を向上でき、収穫作業効率を向上できる。
【００９３】
さらに、集積用のコンベヤ装置140 の第２の搬送手段142 からは、常に所定量の葉菜類Ａがまとめられた状態で搬出され、収容コンテナ126 内に収容されるため、決められた量以上の葉菜類Ａが収容コンテナ126 内に収容されることが簡単に回避でき、葉菜類Ａの損傷等を防止できる。
【００９４】
また、第２の搬送手段142 の搬送速度を第１の搬送手段141 の搬送速度に比べて遅く設定したので、第１の搬送手段141 側で搬送方向に隣合う葉菜類Ａ同士を互いに近づけることができ、同じ搬送速度に設定した構成に比べて、葉菜類Ａを効率良くコンパクトに集積できる。
【００９５】
さらに、搬送集積手段143 を上方に向って開口した半円弧状に形成したので、略円形状に形成した構成に比べて、集積中の葉菜類Ａが上からの比較的大きな力で押圧されることがなく、葉菜類Ａの損傷を防止できる。
【００９６】
また、集積用のコンベヤ装置140 を用いて葉菜類Ａを収容コンテナ126 内に収容する場合には、葉菜類Ａに対して他の葉菜類Ａから受ける重力以外の比較的強い外力が働くことがないため、葉菜類Ａの損傷を効果的に防止できる。
【００９７】
また、搬送装置8a，8bが、根部切断装置７にて根部Ａ2 を切断された葉菜類Ａを搬送始端側から搬送終端側に向けて搬送するとともに、搬送終端側での葉菜類Ａの条数が搬送始端側での葉菜類Ａの条数より少なくなるように搬送途中で葉菜類Ａを合流させるので、複条同時収穫により作業効率を向上しつつ、搬送始端側での葉菜類Ａの条数を搬送終端側でも維持する構成に比べて、搬送方向下流での葉菜類Ａの取扱いを容易にでき、かつ、小型化を図ることができる。
【００９８】
特に、前低後高状の機体１の後側上部を小型化することで、機体の重量バランスが良好で、左右に揺れにくい構造となっており、葉菜類Ａの葉部Ａ1の損傷を防止できる。
【００９９】
また、左右一対の搬送装置8a，8bから搬出される葉菜類Ａが、横倒れの姿勢で横方向に隣合う葉菜類Ａ同士が上下にほとんど重なり合わない状態で、収容コンテナ126 内に順次収容されるので、収容効率を高めることができるばかりでなく、葉菜類Ａが絡み合うことなく収容でき、後の調製作業等を簡単にできる。すなわち、後工程において、いらない葉を取り除く作業、長い根を切る作業、定量を計って袋詰めする作業等を効率良く行うことができる。
【０１００】
さらに、左右一対の搬送装置8a，8bからの葉菜類Ａは、隣合う葉菜類Ａ同士の葉部Ａ1 が向き合うように収容コンテナ126 内に収容されるので、根部Ａ2 に付着した土が葉部Ａ1 に付着してしまうことがない。
【０１０１】
さらに、搬送装置8a，8bの第１の搬送部81の対向搬送ベルト101a，101bの当接突部95，106 によって葉菜類Ａの搬送経路間隙85，86，88，88a からの落下防止を図りつつ、対向搬送ベルト101a，101bが所定方向への走行により葉菜類Ａを締付け挟持することなく載置状態で徐々に姿勢変更しつつ搬送するので、搬送途中で葉菜類Ａの葉部Ａ1に無理な力が作用することがなく、葉菜類Ａの葉部Ａ1の損傷を防止できる。
【０１０２】
また、この当接突部95，106 は、対向搬送ベルト91、101a，101bの走行により搬送終端位置に到達したときに、弾性変形に基づいて対向搬送ベルト91、101a，101bの表面からの突出量が減少するので、葉菜類Ａを持ち回ることがなく、葉菜類Ａの葉部Ａ1 の葉離れを良くでき、葉菜類Ａをスムーズに搬出できる。
【０１０３】
さらに、葉菜類Ａの垂れた状態の葉部Ａ1 を起しながら葉菜類Ａを搬送装置8a，8bの搬送始端側に案内する案内装置９が、弾性支持体55を介在して機体１に支持されているので、圃場の地表面３の凹凸による機体１の振動等に基づいてこの板ばね等の弾性支持体55が弾性変形するため、案内装置９から葉菜類Ａの葉部Ａ1 に無理な力が作用することがなく、葉菜類Ａの損傷を防止できる。
【０１０４】
また、圃場の地表面３の凹凸により、機体１の前部が多少上下動しても、案内装置９の案内始端部は、弾性支持体55により地表面３に密着しているため、垂れて寝転んだ葉部Ａ1 の下方に確実に入り込め、その葉部Ａ1 を適切に掬い上げることができる。
【０１０５】
なお、上記一実施の形態は、半覆帯形で歩行型の搬送装置である構成として説明したが、車輪形或いは覆帯形の構成でもよく、操縦席を備えた乗用型の構成でもよい。
【０１０６】
また、いずれの実施の形態においても、根切り刃11a ，11bは、機体１の前後方向に振動可能として説明したが、例えば、機体１の左右水平方向、機体１の左右傾斜方向等、いずれの方向に振動可能な構成でもよく、或いは、固定支持した構成でもよい。
【０１０７】
さらに、いずれの実施の形態においても、隣合う葉菜類Ａ同士の葉部Ａ1 が向き合う状態で二条の葉菜類Ａが収容コンテナ126 内に収容されるように左右一対の搬送装置8a，8bを機体１に配置した構成について説明したが、図示しないが、隣合う葉菜類Ａ同士の根部Ａ2 が向き合う状態で二条の葉菜類Ａが収容されるように左右一対の搬送装置8a，8bを機体１に配置した構成でもよい。
【０１０８】
また、いずれの実施の形態でも、一対の搬送装置8a，8bを機体１に並設した構成として説明したが、機体１に一つの搬送装置8aのみを設けた構成でもよく、或いは、搬送装置8a，8b一対でなく二対以上の複数対設けた構成でもよく、この場合、搬送装置8a，8bに対応させてコンベヤ装置140 を設ける。
【０１０９】
さらに、いずれの実施の形態でも、コンベヤ装置140 の第１の搬送手段141 、第２の搬送手段142 は、第１搬送ローラ146 、第２搬送ローラ151 をそれぞれ備えたローラコンベヤとして説明したが、例えば、図１６に示すベルトコンベヤの構成でも、同様の作用効果を奏することができる。なお、図示しないが、第１の搬送手段141 および第２の搬送手段142 のいずれか一方をローラコンベヤとし、他方をベルトコンベヤとしてもよい。
【０１１０】
この図１６に示す第１の搬送手段141 は、互いに離間対向した一対のエンドローラ161 ,162 を有し、これらの両エンドローラ161 ,162 間に無端形状の第１搬送ベルト163 が走行可能に巻き掛けられている。この第１搬送ベルト163 はガイド体164 に沿って走行することにより、葉菜類Ａを円弧状の搬送方向に搬送可能な構成とされており、図１４に示す第１搬送ローラ146 と同様の作用効果を奏する。同様に、この図１６に示す第２の搬送手段142 は、互いに離間対向した一対のエンドローラ165 ,166 を有し、これらの両エンドローラ165 ,166 間に無端形状の第２搬送ベルト167 が走行可能に巻き掛けられている。この第２搬送ベルト167 は二つのガイド体168 に沿って走行することにより、葉菜類Ａを円弧状の搬送方向に搬送可能な構成とされており、図１４に示す第２搬送ローラ151 と同様の作用効果を奏する。なお、第１の搬送手段141 のエンドローラ162 および第２の搬送手段142 のエンドローラ165 間には、動力伝達用の無端体169 が巻き掛けられている。
【０１１１】
なお、いずれの実施の形態でも、第１の搬送手段141 、第２の搬送手段142 は、側面視で共通の円弧中心Ｏを中心とする円弧状に形成した構成、すなわち、コンベヤ装置140 全体をＵ字形状の構成としてして説明したが、例えば、図示しないが、コンベヤ装置140 全体をＶ字形状の構成としてもよく、或いは、第１の搬送手段141 および第２の搬送手段142 の少なくともいずれか一方を円弧状にした構成でもよい。
【０１１２】
また、いずれの実施の形態においても、搬送集積手段143 は、第２の搬送手段142 を搬送始端側を中心として回動させることにより、この第２の搬送手段142 を集積姿勢から搬出姿勢へと姿勢変更させ、所定量の葉菜類Ａを自動搬出させる構成として説明したが、例えば、図１７に示す搬送集積手段143aの構成でも、図１４に示す搬送集積手段143と同様の作用効果を奏する。
【０１１３】
すなわち、この図１７に示す搬送集積手段143aは、図１４に示す第１の搬送手段141とは異なる第１の搬送手段141aを備える。この第１の搬送手段141aは、搬送装置8a，8bの搬送終端部に搬送始端部が回動可能に取り付けられ、回動により葉菜類Ａを集積可能な集積姿勢から葉菜類Ａを搬出可能な搬出姿勢に姿勢変更可能である。また、搬送集積手段143aは、図１４に示す第２の搬送手段142とは異なる第２の搬送手段142aを備え、この第２の搬送手段142aは、上方に位置する搬送終端側を中心として回動可能に設けられ、回動により葉菜類Ａを集積可能な集積姿勢から葉菜類Ａを搬出可能な搬出姿勢に姿勢変更可能である。
【０１１４】
そして、ともに集積姿勢にある第１の搬送手段141aおよび第２の搬送手段142aに集積される葉菜類Ａの量が所定量に達した場合、これらの両第１の搬送手段141aおよび第２の搬送手段142aは、各々に対応して設けられた駆動手段である付勢手段の引張りコイルばね156a ，156a の付勢方向の変換に基づいて、互いに離反する方向に向って回動して集積姿勢から搬出姿勢となり、その結果、搬送集積手段143aが閉鎖状態から開放状態になって所定量の葉菜類Ａがまとまった状態で収容部に向けて自動搬出される。
【０１１５】
さらに、例えば、図１８に示す搬送集積手段143bの構成でも、図１４に示す搬送集積手段143と同様の作用効果を奏する。この図１８に示す搬送集積手段143bは、図１４に示す第１の搬送手段141とは異なる第１の搬送手段141bを備える。この第１の搬送手段141bは、搬送終端側が下方に向って傾斜した直線状に形成され、搬送始端部が搬送装置8a，8bの搬送終端部に固定的に連結されている。また、搬送集積手段143bは、図１４に示す第２の搬送手段142とは異なる第２の搬送手段142bを備え、この第２の搬送手段142bは、上方に向って開口した半円弧状に形成され、上方に位置する搬送終端側を中心として回動可能に設けられ、回動により葉菜類Ａを集積可能な集積姿勢から葉菜類Ａを搬出可能な搬出姿勢に姿勢変更可能である。
【０１１６】
そして、集積姿勢にある第２の搬送手段142bに集積される葉菜類Ａの量が所定量に達した場合、この第２の搬送手段142bは、駆動手段である付勢手段としての引張りコイルばね156bの付勢方向の変換に基づいて、搬送始端側が下降する方向に回動して集積姿勢から搬出姿勢となり、その結果、搬送集積手段143bが閉鎖状態から開放状態になって所定量の葉菜類Ａがまとまった状態で収容部に向けて自動搬出される。なお、第２の搬送手段142bは、搬送始端側を中心として回動可能な構成としてもよい。
【０１１７】
また、例えば、図４等に示す集積用のコンベヤ装置140に代えて、図１９および図２０に示すコンベヤ装置140aを機体1aに設けた構成としてもよい。なお、この機体1aは、図４に示す機体１とは異なり、後端部に収容部10がなく、フレーム13にコンテナ載置部13a が設けられていない。
【０１１８】
このコンベヤ装置140aは、図２０に示すように、図１４に示すコンベヤ装置140とは異なり、搬送集積手段143の搬送終端部に上面を開口した収容コンテナ126を引掛け可能な引掛け部200が設けられている。すなわち、第２の搬送手段142 の可動フレーム150a，150bの自由端側の端部に引掛け部200が葉菜類Ａ側とは反対の方向に向って突出した状態で設けられており、この引掛け部200が、収容コンテナ126の上端部外面側に形成された凹部201内に進入することにより、収容コンテナ126が引掛け部200に係脱自在に引っ掛かる。
【０１１９】
また、このコンベヤ装置140aは、図１９に示すように、図１４に示すコンベヤ装置140とは異なり、搬送集積手段143にて集積される葉菜類Ａの量が所定量に達した場合に、葉菜類Ａによる押圧および引掛け部200に引っ掛けられた収容コンテナ126による押圧で付勢方向を変換して搬送集積手段143を閉鎖状態から開放状態にし、収容コンテナ126の上面開口部から内部に落下するように収容コンテナ126内に向けて所定量の被搬送物を搬出させる付勢手段としての引張りコイルばね202を備えている。
【０１２０】
さらに、このコンベヤ装置140aにおけるストッパ体203は、図１９に示すように、図１４に示すコンベヤ装置140のストッパ体160とは異なる位置に設けられている。
【０１２１】
そして、第２の搬送手段142は、葉菜類Ａを集積する前の初期状態では、搬送終端側が第１の搬送手段141の円弧状の搬送方向に沿った基準位置より円弧中心Ｏ側に位置した状態となってストッパ体203にて保持されており、第１の搬送手段141と第２の搬送手段142とが互いに少し近づいて略向き合った状態となっている。なお、搬送集積手段143は、この初期状態時でも上方に向って開口した半円弧形状に近い略半円弧状になっており、葉菜類Ａがロール状に集積される。
【０１２２】
そして、集積用のコンベヤ装置140a の搬送集積手段143 は、各第１搬送ローラ146 、各第２搬送ローラ151 の所定方向への同期駆動回転時において、第２の搬送手段142 が集積姿勢にあるときには、両搬送装置8a，8bの第２の搬送部82,82の搬送終端部から一つずつ連続的に搬出されてくる葉菜類Ａを受け取り、この受け取った横倒れ姿勢の葉菜類Ａを順次搬送する。
【０１２３】
この搬送により、図２１に示すように、第１の搬送手段141 および第２の搬送手段142 の互いに対向する側の面側では、葉菜類Ａの連続状態を維持しながら、葉菜類Ａを傷付けることなく巻き取れるので、葉菜類Ａがロール状に確実に集積される。すなわち、搬送方向に隣り合う葉菜類Ａ同士が重なり合った連続状態が維持されたまま、横倒れ姿勢の葉菜類Ａが次々と巻かれて集積されるに従って、この葉菜類Ａによる押圧で第２の搬送手段142が搬送始端側を中心として徐々に回動し、その結果、葉菜類Ａが損傷することなく、円柱状、或いは円柱状に近い形状に確実に集積される。
【０１２４】
そして、図２０に示すように、例えば円柱状に集積された葉菜類Ａ0 の量が、予め設定された所定量に達した段階で、作業者は、機体1aの走行を止める。
【０１２５】
次いで、作業者は、第２の搬送手段142 の引掛け部200に、収容コンテナ126の凹部201を引っ掛ける。すると、所定量の葉菜類Ａ0による押圧と引掛け部200に引っ掛けられた収容コンテナ126による押圧とにて、引張りコイルばね202が付勢方向を変換し、この引張りコイルばね202の付勢方向の変換により、搬送集積手段143が開放状態になり、その結果、所定量の被搬送物Ａ0が、地表面３上まで下ろされた収容コンテナ126内に落下して収容される。
【０１２６】
すなわち、引張りコイルばね202は、所定量の葉菜類Ａ0、収容コンテナ126等の重力等を受けて、軸方向に伸長して長さが長くなるとともに一方のばね保持部157 を中心として徐々に回動し、この引張りコイルばね202の回動とともに第２の搬送手段142 の可動フレーム150a，150bが一端部の回動中心である支軸部146aを中心として回動する。
【０１２７】
そして、この可動フレーム150a，150bの回動により、他方のばね保持部158 が、図１９に示す一方のばね保持部157 と可動フレーム150a，150bの回動中心とを結んだデットラインである基準線Ｘ上を通過したときに、引張りコイルばね202の付勢力に抗して、この可動フレーム150a，150bが、図示時計回りの方向に瞬間的に大きく回動し、搬送集積手段143 の搬送終端側が閉鎖状態から開放状態になり、第２の搬送手段142 が集積姿勢から搬出姿勢へと姿勢変更する。なお、引張りコイルばね202は、前記基準線Ｘ上に沿って位置したとき、すなわち、集積中の葉菜類Ａの量が所定量に達したときに、軸方向長さが最大となる。
【０１２８】
そして、第２の搬送手段142 が搬出姿勢になると、所定量の葉菜類Ａ0 は、第１搬送ローラ146 および第２搬送ローラ151 の回転により押されつつ自重にて落下し、第２の搬送手段142 の搬送終端部から円柱状にまとめられた状態でスムーズに搬出され、収容コンテナ126 内に収容される。
【０１２９】
このように、このコンベヤ装置140aでも、引張りコイルばね202が、搬送集積手段143 にて集積される葉菜類Ａの量が予め設定された所定量に達するまではこの搬送集積手段143 の搬送終端側を葉菜類Ａ側に向けて相対的に近づく方向に付勢してこの搬送終端側を閉鎖状態に保持する。また、この引張りコイルばね202 は、搬送集積手段143 にて集積される葉菜類Ａの量が予め設定された所定量に達したときには、収容コンテナ126の引掛け部200への引っ掛けに基づいて付勢方向を変換し、搬送集積手段143 の搬送終端側を閉鎖状態から開放状態にし、この搬送終端部から所定量の葉菜類Ａをまとめた状態で搬出させる。
【０１３０】
したがって、従来のように葉菜類Ａを一つずつ連続的に搬出する構成に比べて、この集積用のコンベヤ装置140a の搬送方向下流での葉菜類Ａに関する作業を容易にできる等、図１４に示すコンベヤ装置140と同様の作用効果をすることができる。なお、コンベヤ装置140aの引掛け部200は、収容コンテナ126を引っ掛けることなく作業者が手等でも操作できるように把持可能な構成としてもよい。
【０１３１】
さらに、コンベヤ装置140 ，140aは、葉菜類収穫機以外の各種の装置に用いることができ、葉菜類Ａ等の農作物以外の被搬送物を搬送する場合にも適用できる。
【０１３２】
【発明の効果】
請求項１記載の発明によれば、集積姿勢にある第２の搬送手段に集積される被搬送物の量が所定量に達した場合に、駆動手段が第２の搬送手段を集積姿勢から搬出姿勢へと姿勢変更させ、所定量の被搬送物を搬出させるので、従来のように被搬送物を一つずつ連続的に搬出する構成に比べて、搬送方向下流での被搬送物の取扱いを容易にできる。また、駆動手段が、第２の搬送手段の姿勢を搬送終端側が上方を向いた集積姿勢から搬送終端側が下方を向いた搬出姿勢へと変更させるため、所定量の被搬送物を適切に搬出できる。さらに、第２の搬送手段は、被搬送物を集積する前の初期状態では搬送終端側が第１の搬送手段の円弧状の搬送方向に沿った基準位置より円弧中心側に位置し、被搬送物を集積するに従ってこの被搬送物による押圧で搬送始端側を中心として回動するので、第２の搬送手段を初期状態で基準位置上に位置させる構成に比べて、被搬送物の連続状態を維持しながら被搬送物を適切に巻き取れるため、被搬送物をコンパクトに集積できる。
【０１３３】
請求項２記載の発明によれば、第２の搬送手段の搬送速度を第１の搬送手段の搬送速度に比べて遅く設定したので、第１の搬送手段側で搬送方向に隣合う被搬送物同士を互いに近づけることができ、同じ搬送速度に設定した構成に比べて、被搬送物をコンパクトに集積できる。
【０１３４】
請求項３記載の発明によれば、コンベヤ装置から所定量の被搬送物がまとまって搬出されるため、搬送方向下流での被搬送物の取扱いが容易になり、従来必要であった作業者が葉菜類等を適宜に手に取って収容コンテナ内に移し入れる作業等を不要にでき、収穫作業効率を向上できる。
【図面の簡単な説明】
【図１】 本発明の収穫機の一実施の形態を示す平面図である。
【図２】 同上収穫機の一部を省略した平面図である。
【図３】 同上収穫機の一部を拡大した平面図である。
【図４】 同上収穫機の側面図である。
【図５】 同上収穫機の一部を拡大した側面図である。
【図６】 同上収穫機の一部を拡大した側面図である。
【図７】 同上収穫機の搬送装置の対向搬送ベルトの平面図である。
【図８】 同上収穫機の搬送装置の合流部の平面図である。
【図９】 同上収穫機の図８における矢印の方向に見た側面図である。
【図１０】 同上収穫機の案内装置で案内中の葉菜類を示す図である。
【図１１】 同上収穫機の搬送装置の複条搬送手段で搬送中の葉菜類を示す図である。
【図１２】 同上収穫機の搬送装置の単条搬送手段で搬送中の葉菜類を示す図である。
【図１３】 同上収穫機のコンベヤ装置の後面図である。
【図１４】 同上コンベヤ装置の側面図である。
【図１５】 同上コンベヤ装置による葉菜類の集積過程を示す図である。
【図１６】 同上コンベヤ装置の変形例の側面図である。
【図１７】 同上コンベヤ装置の他の変形例の概要図である。
【図１８】 同上コンベヤ装置のさらに他の変形例の概要図である。
【図１９】 同上コンベヤ装置のさらに他の変形例の側面図である。
【図２０】 同上コンベヤ装置の引掛け部に収容コンテナを引っ掛けた状態を示す図である。
【図２１】 同上コンベヤ装置による葉菜類の集積過程を示す図である。
【符号の説明】
１，1a 機体
126 収容コンテナ
140，140a コンベヤ装置
141 ，141a，141b 第１の搬送手段
142 ，142a，142b 第２の搬送手段
143 ，143a，143b 搬送集積手段
156 ，156a，156b，202 駆動手段、付勢手段としての引張りコイルばね
200 引掛け部[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a transport device that transports an object to be transported such as agricultural products, and a harvester equipped with the transport device.
[0002]
[Prior art]
  A conveyor device used in a leaf vegetable harvesting machine as a conventional harvesting machine simply adopts a configuration in which leaf vegetables, which are the objects to be conveyed, are continuously carried out one by one toward a storage container.
[0003]
[Problems to be solved by the invention]
  For this reason, for example, in order to appropriately store a predetermined amount of leafy vegetables in the storage container, in the downstream of the conveying direction of the conveyor device, the workers appropriately take out the leafy vegetables that are continuously carried out one by one, There is a problem that handling of leaf vegetables downstream in the transport direction becomes relatively complicated, such as the need to transfer the container into the storage container.
[0004]
  This invention is made in view of such a point, and it aims at providing the conveyor apparatus and harvester which can handle the to-be-conveyed object in the conveyance direction downstream easily.
[0005]
[Means for Solving the Problems]
ContractClaim1The conveyor device described isThe posture is changed from the stacking posture capable of stacking the transported object to the unloading posture capable of unloading the transported object at a downstream position of the first transporting means for transporting the transported object and the first transporting means. And a second conveying means which is provided so as to be rotatable about one end side in the conveying direction and which conveys the object to be conveyed from the first conveying means, and the second conveying apparatus in the stacking posture. Drive for changing the posture of the second transfer means from the stacking position to the unloading position and unloading a predetermined amount of the transfer object when the amount of the transfer object accumulated on the transfer means reaches a predetermined amount And the second transfer means is rotated about the transfer start end side so that the posture is changed from the stacking posture with the transfer end side facing upward to the unloading posture with the transfer end side facing downward. Possible, saidFirst conveying means andSaidEach of the second conveying means is formed in an arc shape having the same radius of curvature, and the second conveying means is in an arc shape of the first conveying means in the initial state before stacking the objects to be conveyed. It is positioned closer to the center of the arc than the reference position along the transport direction, and as the transported objects are stacked, it is rotated around the transport start end side by pressing with the transported objects.
[0006]
  And in this configuration,When the amount of the object to be conveyed that is accumulated on the second conveying means in the accumulating posture reaches a predetermined amount, the driving means changes the posture of the second conveying means from the accumulating posture to the unloading posture, and the predetermined amount Since the objects to be transported are carried out, handling of the objects to be transported downstream in the transport direction is facilitated as compared with the conventional configuration in which the objects to be transported are continuously carried out one by one. In addition, the drive means changes the attitude of the second conveying means from the stacking attitude in which the conveyance end side faces upward to the unloading attitude in which the conveyance end side faces downward, so that a predetermined amount of the object to be conveyed can be appropriately carried out. It is. further,In the initial state before stacking the objects to be transported, the second transport means has the transport end side positioned closer to the arc center side than the reference position along the arc-shaped transport direction of the first transport means, and stacks the objects to be transported. Accordingly, the second object is kept on the reference position in the initial state while maintaining the continuous state of the object to be conveyed, because the rotation by the object to be conveyed rotates around the conveyance start end side. Since the objects to be conveyed can be wound up appropriately, the objects to be conveyed can be collected in a compact manner.
[0007]
  Claim2The conveyor device as claimed in claim1In the described conveyor apparatus, the second transport means is set so that the transport speed of the object to be transported is slower than the transport speed of the first transport means.
[0008]
  In this configuration, since the transport speed of the second transport means is set slower than the transport speed of the first transport means, the objects to be transported adjacent to each other in the transport direction are brought closer to each other on the first transport means side. As compared with the configuration in which the same conveyance speed is set, the objects to be conveyed can be accumulated in a compact manner.
[0009]
  Claim3The harvesting machine according to claim 1, wherein the harvesting machine is provided on the machine body and conveys a crop that is a transported object.Or 2The conveyor apparatus described above and a storage container for storing crops carried out from the conveyor apparatus.
[0010]
  In this configuration, since a predetermined amount of the objects to be transported is unloaded from the conveyor device, handling of the objects to be transported in the downstream in the transport direction is facilitated, and the worker who has been necessary in the past appropriately removes the leaf vegetables. The work of picking it up and moving it into the container becomes unnecessary, and the harvesting work efficiency is improved.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, the configuration of an embodiment of a harvesting machine of the present invention will be described with reference to the drawings.
[0012]
  FIG. 1 to FIG. 6 show a leaf vegetable harvester as a walk-type harvester with a half-banded shape that harvests leaf vegetables A, which are double-grown crops planted in a field in house cultivation, etc. In the figure
  In FIGS. 1 to 6, reference numeral 1 denotes a front, lower, and rear height machine body that travels on a ground surface 3 in a predetermined traveling direction on the ground surface 3 of an agricultural field by an operation of a driving operation unit 2 by an operator. Thus, the crawler portions 5a, 5b, 5c are arranged side by side in the front lower portion, and the rear wheel portions 6a, 6b are provided in the rear lower portion. In addition, the width dimension of the left and right of the airframe 1 is slightly wider on the front side in the traveling direction than on the rear side.
[0013]
  Further, this machine body 1 is a transported object in which a root cutting device 7 for simultaneously cutting the root A2 of the leaf vegetable A is provided at the lower part on the front side, and the root A2 is cut by the root cutting device 7. A pair of left and right transport devices 8a and 8b for transporting leafy vegetables A from the transport start end side to the transport end side simultaneously are provided from the front lower part to the rear upper part. Further, at the front end portion of the machine body 1, the leaf portion A1 in a state where the leaf vegetable A hangs down is gradually raised to weed and the leaf vegetable A is simultaneously guided to the transport start end side of the transport devices 8a and 8b. A guide device 9 is provided, and one storage portion 10 is provided at the rear end portion for storing the leaf vegetables A that are transported from the transport end side of the transport devices 8a and 8b.
[0014]
  As shown in FIGS. 1 to 5, the root cutting device 7 is a pair of left and right root cutting blades 11a having a substantially square shape in plan view for running through the soil below the ground surface 3 and cutting the root A2 of the leaf vegetable A. 11b, and each of these root cutting blades 11a, 11b is supported substantially horizontally by blade holding portions 15a, 15b attached to the frame 13 of the machine body 1 and arranged side by side in the left-right direction of the machine body 1 The body 1 can vibrate in the front-rear direction. A plurality of, for example, four cutting portions 16a, 16b, 16c and 16d are formed on the left and right ends of the root cutting blades 11a and 11b as shown in FIG.
[0015]
  Each of the blade holding portions 15a and 15b includes a vibration means 18 for vibrating the root cutting blades 11a and 11b, a depth position adjusting means 19 for adjusting the depth position of the root cutting blades 11a and 11b in the soil, and the like. It is composed of.
[0016]
  As shown in FIGS. 3 and 5, the vibration means 18 has a pair of elongated rectangular plate-like attachment frames 21 attached to the frame 13 and facing each other, and between these two attachment frames 21, A first support shaft 22 and a second support shaft 23, which have axial directions in the horizontal direction of the body 1, are spanned in parallel and spaced apart from each other on the front and rear of the body 1. The first support shaft 22 has one side of an intermediate member 24 connected and fixed in the vicinity of both ends in the axial direction, and a common shaft member 25 is bridged on the other side of the intermediate member 24. Near the both ends in the axial direction, the upper part of the first swing member 26 is rotatably connected. In addition, the second support shaft 23 is connected to the vicinity of both ends in the axial direction so that the upper portion of the second swing member 27 can be rotated. The lower portions of the first swing member 26 and the second swing member 27 are connected to each other. The common vibration arm body 30 is held at.
[0017]
  The vibrating arm body 30 is inclined downward toward the distal end side, and the central portions of the root cutting blades 11a and 11b are fixed to the lower end of the distal end. In addition, a pressing roller 31 that is a rotating body having an axial direction in the horizontal direction of the airframe 1 is rotatably provided at the base end portion of the vibration arm body 30 and the spring connecting portion 32 faces upward. Projecting. Further, one end of a coil spring 33 as an urging member is connected to the spring connecting portion 32, and the other end of the coil spring 33 is connected to a connecting portion 21a connecting the edges of the mounting frames 21. It is connected to a spring connecting portion 34 that is formed to project.
[0018]
  Then, the pressing roller 31 of the vibration arm body 30 is pressed against the blade plate cam 36 which is an elliptical plate-shaped rotating body attached to the drive shaft 35 by the urging force of the coil spring 33, and the drive shaft 35 is driven to rotate. The root cutting blades 11a and 11b vibrate together with the vibration arm body 30 by the rotation of the pressure roller 31 and the blade plate cam 36 based on the rotation.
[0019]
  On the other hand, as shown in FIGS. 3 and 5, the depth position adjusting means 19 has an intermediate member 41 whose one side is connected and fixed in the vicinity of the center of the first support shaft 22 in the axial direction. A common shaft member 42 is bridged on the other side of the intermediate member 41, and one end portion of a substantially cylindrical connecting member 43 is rotatably connected to the central portion of the common shaft member 42 in the axial direction. .
[0020]
  The other end surface of the connecting member 43 is open, and a female screw portion 44 is formed on the inner peripheral surface of the other end. Further, a male screw portion 47 formed at one end portion of a rotating housing 46 rotatably supported by a support member 45 such as a tumbler is screwed into the female screw portion 44 of the connecting member 43. A depth adjusting handle 50 is attached to the other end of the rotating housing 46 via a joint member 48.
[0021]
  When the operator turns the depth adjustment handle 50, the connecting member 43 moves in the axial direction of the rotating housing 46 according to the rotation of the rotating housing 46. As a result, the inclination angle of the vibrating arm body 30 changes. However, the depth positions of the root cutting blades 11a and 11b are displaced.
[0022]
  As shown in FIGS. 2 and 4, the guide device 9 includes a plurality of, for example, four guide portions 51a, 51b, 51c, and 51d. Each of the guide portions 51a, 51b, 51c, and 51d has a guide start end. A pair of left and right rotation guide bodies 52a and 52b each having a slender cylindrical shape whose side is inclined downward, and a small rotation guide body 53a and 53b positioned below the rotation guide bodies 52a and 52b. Yes. The small rotation guide bodies 53a and 53b, like the rotation guide bodies 52a and 52b, are inclined downward on the guide start side, but this inclination angle is set smaller than the inclination angle of the rotation guide bodies 52a and 52b. Thus, the small leaves A1 can be appropriately handled.
[0023]
  Further, each of these rotation guide bodies 52a and 52b and each of the small rotation guide bodies 53a and 53b are inclined in a direction in which the guide end side is directed toward the leaf vegetables A, that is, in a direction in which the guide end sides are close to each other. . Note that the inclination angle of the small rotation guides 53a and 53b toward the leafy vegetables A is set larger than the inclination angle of the rotation guides 52a and 52b as shown in FIG. 3, and appropriately corresponds to the small leaf portion A1. It can be done. The rotation guide bodies 52 a and 52 b and the small rotation guide bodies 53 a and 53 b can vibrate in the front-rear direction of the body 1.
[0024]
  Of the rotation guide bodies 52a and 52b of the four guide portions 51a, 51b, 51c and 51d, the rotation guide body 52b on the right side in the traveling direction of the guide portion 51a and the rotation guide body 52a on the left side in the traveling direction of the guide portion 51b. The rotation guide body 52b on the right side in the traveling direction of the guide part 51c and the rotation guide body 52a on the left side in the traveling direction of the guide part 51d are supported by an elastic support 55 attached to the tip of the vibration arm body 30. ing.
[0025]
  That is, these rotation guide bodies 52a and 52b are rotatably attached to the attachment member 56 supported by the elastic support body 55, and follow the vibration of the vibration arm body 30, that is, the vibration of the root cutting blades 11a and 11b. Vibration is possible. Further, these rotation guide bodies 52a and 52b can be adjusted in height position by the depth adjustment handle 50 as well as the depth positions of the root cutting blades 11a and 11b.
[0026]
  The elastic support 55 is formed of a leaf spring or a rod-like spring that is an elongated spring material having a longitudinal direction in the traveling direction of the airframe 1, and one end side in the longitudinal direction is bent by approximately 180 degrees, The mounting member 56 is fixed to the lower surface of the bent portion. Similarly, the corresponding small rotation guides 53a and 53b are also supported by an elastic support 55 attached to the distal end portion of the vibration arm body 30, and can vibrate and are heightened by the depth adjustment handle 50. The position can be adjusted.
[0027]
  Of the rotation guide bodies 52a, 52b of the four guide portions 51a, 51b, 51c, 51d, the rotation guide body 52a on the left side in the traveling direction of the guide portion 51a, the rotation guide body 52b on the right side in the traveling direction of the guide portion 51b, The rotation guide body 52a on the left side in the direction of travel of the guide part 51c and the rotation guide body 52b on the right side in the direction of travel of the guide part 51d are elastic support bodies 55 attached to the tip of the guide body vibration part 60 attached to the frame 13. It is supported by.
[0028]
  That is, the rotation guide bodies 52a and 52b and the corresponding small rotation guide bodies 53a and 53b are rotatably attached to the attachment member 56 supported by the elastic support body 55, and the vibration of the guide body vibration section 60 According to the vibration. Further, the height positions of the rotation guide bodies 52a and 52b and the small rotation guide bodies 53a and 53b are adjusted by replacing the elastic support body 55, for example. Note that the mounting members 56 of the guide portions 51a and 51d at the left and right ends of the machine body 1 face the rotation guide bodies 52a and 52b and the small rotation guide bodies 53a and 53b and have the same structure of the rotation bodies 52c and 52c and the small rotation body. 53c and 53c are rotatably mounted.
[0029]
  Further, as shown in FIGS. 3 and 6, the guide body vibrating portion 60 has a pair of elongated rectangular plate-like mounting frames 61 attached to the frame 13 and facing each other, and the traveling direction of the mounting frame 61 Support shafts 62 having an axial direction in the horizontal direction of the airframe 1 are attached to the front side, and the upper portion of the first swing member 63 is rotatably connected to these support shafts 62. Further, support shafts 64 having axial directions in the horizontal direction of the airframe 1 are attached to the rear side of the mounting frame 61 in the traveling direction, and the upper portion of the second swing member 65 can be rotated on these support shafts 64. A common guide vibration arm 70 is held below the first swing member 63 and the second swing member 65.
[0030]
  The guide vibrating body 70 is inclined downward toward the distal end, and the elastic support 55 corresponding to the upper end of the distal end is attached. Further, at the base end portion of the vibration arm body 70 for the guide body, a pressing roller 71 which is two rotating bodies having an axial direction in the horizontal direction of the machine body 1 is rotatably provided, and two springs are provided. A connecting portion 72 is provided so as to project upward. Further, one end portions of coil springs 73 as two urging bodies are connected to these spring connecting portions 72, and the other end portions of these coil springs 73 connect the end edges of the both mounting frames 61. It is connected to two spring connecting portions 74 formed to protrude from the connecting portion 61a.
[0031]
  Then, the pressing roller 71 of the guide arm vibration arm body 70 is pressed against the blade plate cam 76 which is an elliptical plate-shaped rotating body attached to the drive shaft 35 by the biasing force of the coil spring 73, and the drive shaft 35 The rotation guide bodies 52a and 52b and the corresponding small rotation guide bodies 53a and 53b vibrate together with the guide body vibration arm body 70 by the rotation of the pressing roller 71 and the blade plate cam 76 based on the drive rotation of the guide body.
[0032]
  Further, the rotation guide bodies 52a, 52b and the small rotation guide bodies 53a, 53b of the four guide portions 51a, 51b, 51c, 51d are synchronously vibrated by the drive rotation of the common drive shaft 35 and the airframe 1 advances. Based on the above, it enters the lower part of the leaf A1 where the leaf vegetable A hangs down, contacts the lower surface of the leaf A1 and receives force from the leaf vegetable A to rotate. This direction of rotation is the direction in which the leaf vegetable A side is directed from top to bottom. The rotation guide bodies 52a and 52b and the small rotation guide bodies 53a and 53b rotate while vibrating to loosen the leaf A1 having a corresponding size without damaging the leaves, and the leaves of the leafy vegetables A are drooped. The portion A1 is gradually raised while weeding, and the chopped leaf vegetable A is guided to the transport start end side of the transport devices 8a and 8b.
[0033]
  The conveying devices 8a and 8b convey leaf vegetables A from the conveyance start end side toward the conveyance end side, and the number of leaf vegetables A on the conveyance end side is smaller than the number of leaf vegetables A on the conveyance start end side. For example, the leafy vegetables A are joined in the middle of conveyance so that the number of strips is halved, and the posture of the leafy vegetables A is changed from a standing posture to a sideways posture after being slightly laid down in the middle of conveyance.
[0034]
  Each of these transfer devices 8a and 8b includes, as shown in FIGS. 1 and 4, a first transfer unit 81 that transfers leafy vegetables A obliquely upward, which is an inclination direction of the front, low, and high, and the first transfer unit 81. A transport start end side located at a lower position on the transport end side of one transport unit 81, and a second transport unit 82 for transporting leaf vegetables A from the first transport unit 81 on the transport surface. Yes.
[0035]
  Here, the first transport unit 81 of the transport device 8b located on the right side in the traveling direction of the machine body 1 is configured to copy the leaf vegetables A along a plurality of rows, for example, two rows of transport path gaps 85 and 86, which are parallel to each other. A double-line conveying means 87 that conveys the stripes simultaneously, a single-line conveying means 89 that conveys leafy vegetables A along a single-line conveying path gap 88, and a double-lined conveying means 87 and a single-line conveying means 89 that are positioned between Consists of relay conveyance means 90 for relaying leafy vegetables A from the conveyance end of each of the plurality of conveyance path gaps 85, 86 of the conveyance means 87 to the conveyance start end of the conveyance path gap 88 of the single line conveyance means 89 Has been.
[0036]
  The double strip conveying means 87 is disposed on the front side of the machine body 1 with the conveyance start end inclined downward, and the leaf vegetable A is introduced from the guide device 9 to the conveyance start end, and the introduced leaf vegetable A is introduced. Is transported obliquely upward without changing the posture in a standing posture.
[0037]
  The double strip transport means 87 is placed in a mounted state without clamping and pinching the leafy vegetables A by running in a state of being opposed to each other through the elongated transport path gaps 85 and 86 in the front-rear direction of the machine body 1. For example, two pairs of endless flexible flexible belts 91, for example, made of rubber, are conveyed.
[0038]
  As shown in FIGS. 7 and 8, each of these opposed conveying belts 91 is connected to driving pulley bodies 93a, 93b and driven pulley 94, which are rotating bodies positioned in a state of being opposed to each other and having an axial direction in the vertical direction. It is wrapped so that it can run. The axial directions of the drive pulley bodies 93a and 93b and the driven pulley 94 are parallel to each other and coincide with a direction orthogonal to a predetermined inclined surface. The drive pulley bodies 93a and 93b are provided with a plurality of pulleys on a single spindle.
[0039]
  A plurality of elastically deformable contact protrusions 95 that are in contact with the leaf vegetable A and prevent the leaf vegetable A from falling from the transport path gaps 85 and 86 are integrally formed on the surface of the opposed transport belt 91. Each of these abutting protrusions 95 is arranged side by side over the entire circumference with a predetermined distance from each other in the traveling direction.
[0040]
  Further, each of the contact protrusions 95 is connected to the surface of the belt base 91a having a narrow flat band at both ends in the longitudinal direction of a sheet piece member having a substantially elongated rectangular shape made of, for example, rubber. It is formed in a circular arc shape, for example, a semicircular shape. The radius of the contact protrusion 95 is set to be approximately equal to the radius of each of the drive pulley body 93a and the driven pulley 94.
[0041]
  Each of these contact protrusions 95 is elastically deformed and flattened at the conveyance start end position and conveyance end position of the conveyance path gaps 85 and 86, and the amount of protrusion from the surface of the belt base 91a is reduced. . That is, when the belt base 91a is formed in an arc shape along the outer peripheral surfaces of the drive pulley bodies 93a and 93b and the driven pulley 94, the belt base 91a is largely bent until the vicinity of the connection portion between the contact protrusion 95 and the belt base 91a becomes substantially a right angle. A portion other than the vicinity of the connection portion of the contact protrusion 95 has a shape close to a plane.
[0042]
  Each contact protrusion 95 returns to the original semicircular shape after passing through the conveyance start end position and the conveyance end position. Further, as shown in FIG. 7, the positional relationship of the abutting protrusions 95 of the opposing conveying belt 91 that are opposed to each other is long and narrow in order to prevent the leaf portion A1 of the leaf vegetable A from being damaged more effectively. Alternating positions are set so that substantially the same width space is maintained over the entire length of the gaps 85 and 86. Although not shown, the abutting protrusions 95 of the opposed opposite conveying belt 91 may be set at the same position facing each other.
[0043]
  The single-line conveying means 89 is disposed on the rear side of the machine body 1 with the conveying start end side inclined downward, and leaf vegetables A are introduced from the relay conveying means 90 to the conveying start end. The leafy vegetables A are conveyed obliquely upward while gradually changing the posture from a standing posture to a slightly tilted posture as shown in FIG.
[0044]
  The single-line conveying means 89 conveys the leafy vegetables A in a mounted state without being clamped and clamped by running in a state of being opposed to each other via an elongated conveying path gap 88 in the front-rear direction of the body 1. For example, a pair of endless flexible flexible belts 101a and 101b made of rubber, for example, are provided.
[0045]
  As shown in FIGS. 1, 8, and 12, these opposed conveying belts 101a and 101b can run on a driving pulley 93a, a driven pulley 104, and a guide pulley 105, which are rotating bodies having an axial direction in the vertical direction. It is wrapped around.
[0046]
  The axial directions of the driving pulley body 93a, the driven pulley 104, and the guide pulley 105 are not parallel to each other, and the axial direction of the driven pulley 104 is the same as that of the guide pulley 105 and the driving pulley as shown in FIG. The body 93a is inclined by a predetermined angle toward the center in the width direction of the body 1 with respect to the axial direction of the body 93a. For this reason, the opposing conveyance belts 101a and 101b are wound in a state of being twisted according to the inclination angle.
[0047]
  Also, one opposing transport belt 101a located closer to the center in the width direction of the machine body 1 is compared with the other opposing transport belt 101b so that the leafy vegetables A are properly tilted toward the center in the width direction of the machine body 1. The part is located at the front position of the body 1 and at the lower position. Note that the conveyance end portion of the opposite conveyance belt 101a is located above the conveyance start end portion of the second conveyance unit 82.
[0048]
  Further, on the surfaces of the opposed conveying belts 101a and 101b, a plurality of elastically deformable materials that prevent the leafy vegetables A from falling from the conveying path gap 88, like the opposed conveying belt 91 of the double-line conveying means 87, can be deformed. A contact protrusion 106 is formed to protrude.
[0049]
  The relay transport means 90 has a relay transport path gap 88a whose one end side communicates with the transport terminal end of each of the plurality of transport path gaps 85 and 86 and whose other end communicates with the transport start end of the single line transport path gap 88. The leaf vegetables A are transported obliquely upward without changing their postures in the standing posture along the relay transport path gap 88a. The width dimensions of the relay conveyance path gap 88a and the conveyance path gaps 85 and 86 are appropriately set according to the size of the leaf vegetable A.
[0050]
  The relay transport means 90 is an endless flexible member located only on one side of an elongated relay transport path gap 88a having a longitudinal direction in a direction slightly inclined in a predetermined direction with respect to the longitudinal direction of the machine body 1. The intermediate transfer belts 111a and 111b are formed of a rubber material having a substantially circular cross section, for example.
[0051]
  As shown in FIGS. 8 and 9, each of these relay conveyance belts 111a and 111b is wound around a driving pulley body 93b and driven pulleys 112 and 113 which are rotating bodies having an axial direction in the vertical direction. ing. The axial directions of the driving pulley body 93b and the driven pulleys 112 and 113 are parallel to each other and coincide with a direction orthogonal to a predetermined inclined surface. Further, a circular belt 114 having a circular cross section for power transmission is wound around one of the driven pulley 112 and the driving pulley body 93b of each of the relay conveyance belts 111a and 111b so as to be able to travel.
[0052]
  Then, based on the power transmission of the round belt 114, one relay transport belt 111a of the relay transport means 90 and a part of the counter transport belt 101a are separated from each other via the relay transport path gap 88a. It travels and conveys leaf vegetables A without clamping. At the same time, the other relay transport belt 111b and a part of the opposed transport belt 101b travel while being spaced apart from each other via the relay transport path gap 88a, and transport leaf vegetables A without being clamped. Then, the leafy vegetables A are gathered at the junction of the relay conveyance path gap 88a, and the leafy vegetables A carried into the relay conveying means 90 in two lines are carried out as one half.
[0053]
  Each of the opposing conveying belt 91 of the double-conveying means 87, the opposing conveying belts 101a and 101b of the single-conveying means 89, the relay conveying belts 111a and 111b and the round belt 114 of the relay conveying means 90 is a predetermined one. The cover body 115 is covered except for a part.
[0054]
  Further, as shown in FIG. 13, the second transport unit 82 of the transport device 8b located on the right side in the traveling direction of the machine body 1 has a pair of left and right elongated conveyor frames 121a having a longitudinal direction in the front-rear direction of the machine body 1. 121b is provided on the rear side of the fuselage 1.
[0055]
  Of these conveyor frames 121a and 121b, one of the conveyor frames 121a located on the center side in the width direction of the machine body 1 is located along the front and rear inclination directions of the machine body 1. The other conveyor frame 121b located on the width direction end portion side of the machine body 1 is located along the front-rear horizontal direction of the machine body 1. In addition, a plurality of, for example, three transport rollers 122, 123, 124 are mounted in parallel between the conveyor frames 121a, 121b so as to be rotatable at different inclination angles.
[0056]
  The transport rollers 122, 123, and 124 of the second transport unit 82 are connected to the transport end of the single-strip transport means 89 during synchronous drive rotation in a predetermined direction due to travel of an endless body 125 such as a power transmission chain. The leaf vegetable A that falls by its own weight is received from the section, and the received leaf vegetable A is conveyed while gradually changing its posture from a posture close to lying down to a posture lying down. At the time of dropping from the single-line conveying means 89, the leaf vegetable A changes its posture from a slightly lying posture to a posture that is close to lying down.
[0057]
  The transport device 8b having the above configuration and the transport device 8a positioned on the left side in the traveling direction of the machine body 1 are symmetrical to each other, and the transport device 8a has the same configuration as the transport device 8b.
[0058]
  Further, at the downstream position of both the conveying devices 8a and 8b, a single collecting conveyor device 140 is arranged. The conveyor device 140 receives the leaf vegetables A from both the conveying devices 8a and 8b and accumulates them. Then, a predetermined amount of leafy vegetables A are carried out in a gathered state. Note that the transport speed of the transport devices 8a and 8b is set to be the same as or slightly slower than the travel speed of the airframe 1.
[0059]
  This stacking conveyor device 140 includes arc-shaped first conveying means 141 fixedly supported by the conveying terminal portions of both the conveying devices 8a and 8b, and is provided at a downstream position of the first conveying means 141. The second conveying means 142 is disposed so as to be rotatable about the conveying start end side, and the arcuate second conveying means 142 has an accumulation posture with the conveying end side facing upward, for example, substantially vertically upward. And a carry-out posture in which the conveyance end side faces downward, for example, substantially vertically downward, can be changed in posture. The second transport means 142 is cantilevered at the transport end portion of the first transport means 141.
[0060]
  In addition, the first transport unit 141 and the second transport unit 142 are opened upward, for example, around a common arc center O so that the leaf vegetables A are accumulated in a roll shape on one surface side. It is formed in a substantially semicircular arc shape. Further, the transporting and accumulating unit 143 is constituted by the first transporting unit 141, the second transporting unit 142 and the like.
[0061]
  As shown in FIGS. 13 and 14, the first transport means 141 transports the leaf vegetable A along the substantially horizontal transport direction so that the leaf vegetable A draws a moving locus of the arc. It has a pair of left and right fixed frames 145a and 145b that are spaced apart from each other and have a longitudinal direction in the front-rear direction. Each of the fixed frames 145a and 145b is formed in an arc shape and an elongated shape with the arc center O as the center, and the longitudinal direction Is connected and fixed to the conveyor frame 121a of the both conveying devices 8a and 8b. Note that both ends in the longitudinal direction of the fixed frames 145a and 145b are located at substantially the same height.
[0062]
  Between these two fixed frames 145a and 145b, a plurality of, for example, five first transport rollers 146 are mounted so as to be able to drive and rotate, and the axial direction of each first transport roller 146 is in the horizontal direction of the airframe 1. Match.
[0063]
  A sprocket or the like is provided between the support shaft portion 146a of the first transport roller 146 and the support shaft portion 124a of the transport roller 124 of the second transport portion 82 that are pivoted between one end portions of the fixed frames 145a and 145b. An endless body 147 for power transmission such as a chain is wound around the rotating body. In addition, an endless body 148 for power transmission such as a chain is wound around the support shaft portion 146a of each first transport roller 146 via a rotating body such as a sprocket. The roller 146 can be driven and rotated synchronously in a predetermined direction.
[0064]
  On the other hand, the second conveying means 142 has a pair of left and right movable frames 150a and 150b facing each other, and each movable frame 150a and 150b is formed in an arc shape and an elongated shape. The movable frames 150a and 150b are formed in an arc shape having the same length and the same radius of curvature as the fixed frames 145a and 145b, and the center of the arc of the movable frames 150a and 150b is a side surface in the stacked posture state. Visually coincides with the arc center O.
[0065]
  Further, one end portion in the longitudinal direction of each movable frame 150a, 150b is rotatably connected to the other end portion in the longitudinal direction of each fixed frame 145a, 145b via a support shaft portion 146a. The other end portions in the longitudinal direction of 150a and 150b are free end portions, and as shown in FIG. 4, they are positioned in the vicinity of the driving operation unit 2 at a position higher than the arc center O in the accumulated posture state. However, in the state of the carry-out posture, it is located in the vicinity of the housing part.
[0066]
  Between these two movable frames 150a and 150b, a plurality of, for example, three second transport rollers 151 are pivotally mounted so as to be driven to rotate, and the axial direction of each second transport roller 151 is in the horizontal direction of the machine body 1. Match.
[0067]
  The support shaft 151a of the second transport roller 151 pivoted between the vicinity of one ends of the movable frames 150a and 150b, and the support shaft of the first transport roller 146 pivoted between the other ends of the fixed frames 145a and 145b. An endless body 152 for power transmission such as a chain is wound around the part 146a via a rotating body such as a sprocket. Further, endless bodies 153 and 154 for power transmission such as chains are wound around the support shafts 151a of the second conveying rollers 151 via rotating bodies such as sprockets, and these endless bodies 152, 153 and 154 are wound. As a result of the travel, the second transport rollers 151 are synchronously driven and rotated in a predetermined direction together with the first transport rollers 146. Further, the transport speed by each of the second transport rollers 151 is set slightly slower than the transport speed by each of the first transport rollers 146, but may be set to be the same. Endless bodies 147, 148, 152, 153, 154 for power transmission and rotating bodies such as sprockets are covered with a cover body 155.
[0068]
  Further, in the stacking conveyor device 140, the amount of leafy vegetables A accumulated on the upper surfaces of the second transport means 142 and the first transport means 141 in the stacking posture has reached a predetermined amount. In this case, a driving means that changes the urging direction only by pressing with a predetermined amount of leafy vegetables A and automatically changes the posture of the second conveying means 142 from the stacking attitude to the carrying-out attitude, for example, tension as an urging means. A coil spring 156 is provided.
[0069]
  That is, the tension coil spring 156 has the conveyance end side of the conveying and accumulating means 143 facing the leaf vegetable A side until the amount of the leaf vegetables A accumulated by the conveying and accumulating means 143 reaches a predetermined amount. By energizing in a relatively approaching direction, the conveyance end side is held in a closed state, and when the amount of leaf vegetables A accumulated in the conveyance accumulating means 143 reaches a predetermined amount, By changing the urging direction in response to the gravity of the leaf vegetable A, the transport end side of the transport stacking means 143 is changed from the closed state to the open state, and a predetermined amount of the leaf vegetable A is transported toward the storage unit 10.
[0070]
  One end of the tension coil spring 156 is attached to the conveyance end side of the first conveyance means 141, and the other end is attached to the conveyance start end side of the second conveyance means 142. Corresponding to the rotation of the second conveying means 142, it can be deformed in the axial direction.
[0071]
  Further, one end of the tension coil spring 156 is connected to one shaft-shaped spring holding portion 157 protruding from the fixed frame 145a, and the other end of the shaft-shaped spring holding formed to protrude from the movable frame 150a. Part 158.
[0072]
  The tension coil spring 156 moves the second conveying means 142 to the first conveying state in a state where the second conveying means 142 is in the accumulation posture, that is, in a state where the conveying terminal side of the conveying and accumulating means 143 is closed. In the state where each upper surface side is urged toward the means 141 side in one direction to approach, and the second conveying means 142 is in the unloading posture, that is, in the state where the conveying terminal side of the conveying and accumulating means 143 is in the open state. The second conveying means 142 is set so as to be urged toward the first conveying means 141 in the other direction in which the respective lower surface side approaches.
[0073]
  In FIG. 14, reference numeral 160 denotes a stopper body as a rotation restricting means. The stopper body 160 removably contacts the movable frames 150a and 150b when the second conveying means 142 is in the stacked posture. The rotation of the movable frames 150a and 150b is restricted against the urging force of the tension coil spring 156, the second transfer means 142 is maintained in a predetermined stacking posture, and the transfer end side of the transfer stacking means 143 is closed. keeping. That is, in the initial state before the leaf vegetables A are accumulated, the second transport unit 142 is held by the stopper body 160, so that the second transport unit 142 is on the reference position along the arc-shaped transport direction of the first transport unit 141. Is located.
[0074]
  The conveying and accumulating means 143 of the accumulating conveyor device 140 is configured such that the second conveying means 142 is in the accumulating posture when the first conveying rollers 146 and the second conveying rollers 151 are synchronously driven and rotated in a predetermined direction. In addition, the leafy vegetables A that are successively carried out one by one from the conveying end portions of the second conveying parts 82 and 82 of the both conveying devices 8a and 8b are received, and the received leafy vegetables A that are in the sideways posture are received in an arc shape. Are sequentially conveyed along the conveyance direction.
[0075]
  Then, as shown in FIG. 15, leaf vegetables A are accumulated in a roll shape on the upper surface side of each of the first transport means 141 and the second transport means 142. That is, leafy vegetables A lying down are wound one after another and accumulated in a columnar shape or a shape close to a columnar shape.
[0076]
  Then, as shown in FIG. 14, for example, when the amount of leaf vegetables A0 accumulated in a columnar shape reaches a predetermined amount, the tension coil spring 156 detects that the predetermined amount has been reached. The urging direction is switched by the detection, and the posture of the second transport means 142 is changed from the stacking posture to the carrying-out posture.
[0077]
  That is, the tension coil spring 156 is elongated in the axial direction due to an increase in the leaf vegetables A, and is gradually rotated around the one spring holding portion 157. As the tension coil spring 156 rotates, The movable frames 150a and 150b of the second conveying means 142 rotate about a support shaft portion 146a that is a rotation center of one end portion.
[0078]
  Then, by the rotation of the movable frames 150a and 150b, the other spring holding portion 158 is a reference line that is a dead line connecting the one spring holding portion 157 shown in FIG. 14 and the rotation center of the movable frames 150a and 150b. At the moment of passing over the line X, that is, the moment when the amount of the leaf vegetable A being accumulated reaches a predetermined amount, the force acting on the second conveying means 142 based on the weight of the leaf vegetable A0 is a tension coil spring. Overcoming the urging force of 156, the movable frames 150a and 150b momentarily rotate in the clockwise direction shown in the drawing, and the transfer terminal side of the transfer stacking means 143 is changed from the closed state to the open state, so that the second transfer The means 142 changes the posture from the accumulation posture to the carry-out posture.
[0079]
  When the tension coil spring 156 is positioned along the reference line X, that is, when the amount of the leaf vegetable A being accumulated reaches a predetermined amount, the axial length becomes maximum.
[0080]
  When the second transport unit 142 is in the carry-out posture, the predetermined amount of leafy vegetables A0 falls by its own weight while being pushed by the rotation of the first transport roller 146 and the second transport roller 151, and the second transport unit 142. 4 are smoothly carried out in a state of being collected in a cylindrical shape from the transfer terminal portion, and stored in the storage container 126 of the storage portion 10 as shown in FIG.
[0081]
  Further, as shown in FIG. 4, the storage container 126 of the storage unit 10 is a box-shaped container having an open top surface, and is detachably attached to the container placement unit 13 a of the frame 13. The container 126 has a top opening 126a facing obliquely upward in front of the machine body 1 so that a predetermined amount of leaf vegetables A0 from the second conveying means 142 of the conveyor device 140 can be properly received. Inclined and placed on the container placing portion 13a. The container placement portion 13a may be configured to be movable up and down or swingable.
[0082]
  On the other hand, in FIG. 4, 131 is a power source, and for example, one drive source 132 such as a motor is connected to the power source 131. The drive force from the drive source 132 is transmitted to the drive shaft 35 through a transmission means 133 such as a chain transmission mechanism or a belt transmission mechanism, and also through the transport device drive shafts 134 and 135. Each of the transport rollers 122, 123, 124, and the first transport is transmitted to the drive pulley bodies 93 a, 93 b and the transport roller 122 and via the power transmission endless bodies 125, 147, 148, 152, 153, 154, etc. The roller 146 is transmitted to each second transport roller 151.
[0083]
  Since the transport device drive shafts 134 and 135 are common to the pair of left and right transport devices 8a and 8b, the drive pulley bodies 93a and 93b and the transport roller 122 of both the transport devices 8a and 8b are used. Are driven and rotated synchronously. Further, as shown in FIG. 4, the driving force from the driving source 132 is transmitted to the crawler portions 5a, 5b, 5c via the transmission means 136 such as a chain transmission mechanism or a belt transmission mechanism, and the rear wheel portion. It is also transmitted to 6a and 6b.
[0084]
  Next, the operation of the above embodiment will be described.
[0085]
  The driving force from the drive source 132 of the machine body 1 vibrates the root cutting blades 11a and 11b of the root cutting device 7, and the rotation guide bodies 52a and 52b and the small rotation guide bodies 53a and 53b of the guide device 9 vibrate. In addition, the opposing conveyor belt 91 of the double conveyor means 87, the opposing conveyor belts 101a and 101b of the single conveyor means 89, the relay conveyor belt 111a of the relay conveyor means 90 in the first conveyor section 81 of both conveyor apparatuses 8a and 8b, 111b and the round belt 114 travel, and while the second transport unit 82 and transport stacking means 143 are operating, the operator travels the machine body 1 in the traveling direction by operating the driving operation unit 2.
[0086]
  As the machine body 1 travels, the guide portions 51a, 51b, 51c, 51d of the guide device 9 gradually move the leaf portion A1 of the double-leaved leaf vegetable A attached to the field as shown in FIG. Wake up and weed, and guide leaf vegetable A to the conveying start end side of conveying devices 8a and 8b simultaneously.
  In the middle of this guidance, the cutting parts 16a, 16b, 16c, 16d of the root cutting blades 11a, 11b of the root cutting device 7 simultaneously cut the root A2 of the leaf vegetable A simultaneously.
[0087]
  The leaf vegetables A having the root A2 cut by the root cutting device 7 are simultaneously transported to the upper rear side of the machine body 1 by a pair of left and right transport devices 8a and 8b.
It is accumulated in a cylindrical shape by a conveyor device 140 for accumulation. Then, the accumulated leafy vegetables A0 are accommodated in a predetermined amount in the storage container 126 of the storage unit 10. It should be noted that a predetermined amount of the leaf vegetables A0 adjacent in the storage container 126 are appropriately stored without overlapping each other.
[0088]
  And an operator changes the direction of the body 1 suitably, and makes the body 1 drive | work the whole farm field, and completes the harvesting operation of leaf vegetables A by work efficiency by double row simultaneous harvesting.
[0089]
  Thus, according to the above-described embodiment, the tension coil spring 156 of the conveyor device 140 for accumulation reaches the predetermined amount set in advance for the amount of leaf vegetables A accumulated in the conveying and accumulation means 143. Energizes the conveying terminal side of the conveying and accumulating means 143 toward the leaf vegetable A side in a relatively approaching direction, and holds the conveying terminal side in a closed state. In addition, the tension coil spring 156 automatically converts the urging direction when the amount of leaf vegetables A accumulated in the conveying and accumulating means 143 reaches a predetermined amount, thereby conveying the conveying and accumulating means 143. Since the end side is changed from the closed state to the open state, and a predetermined amount of leafy vegetables A are transported from the transport end part, the leafy vegetables A are transported one by one as compared with the conventional structure. Work on leafy vegetables A can be facilitated downstream in the conveying direction of the conveyor device 140 for accumulation. Moreover, since the predetermined amount of leafy vegetables A can be automatically carried out by automatic conversion of the urging direction by the tension coil spring 156, the working efficiency can be further improved.
[0090]
  Further, when the amount of leafy vegetables A accumulated in the second conveying means 142 in the accumulating posture reaches a preset predetermined amount, the second conveying means 142 changes its posture from the accumulating posture to the carrying-out posture. Since a predetermined amount of leafy vegetables A are carried out from the second transporting unit 142 in a state of being collected in, for example, a cylindrical shape, handling of the leafy vegetables A is facilitated downstream in the transporting direction, and the harvesting work efficiency can be improved.
[0091]
  Further, the tension coil spring 156 detects that the amount of leaf vegetables A accumulated in the second conveying means 142 in the accumulation posture has reached a predetermined amount, and this detection changes the urging direction in one direction. Since the second transfer means 142 is changed from the stacking position to the unloading position, the harvesting work efficiency can be improved by automatically discharging a predetermined amount of leaf vegetables A, and the driving means such as a hydraulic cylinder can be used. Compared to the configuration using the, the configuration is simple, the cost is low, and the productivity can be improved.
[0092]
  Further, since the leaf vegetables A are accumulated in a roll shape by the conveyor device 140 for accumulation and the accumulated leaf vegetables A are accommodated in the accommodation container 126, the accommodation efficiency can be improved and the harvesting work efficiency can be improved.
[0093]
  Furthermore, since a predetermined amount of leafy vegetables A are always transported out of the second conveying means 142 of the stacking conveyor device 140 and stored in the storage container 126, more than a predetermined amount of leafy vegetables are stored. It can be easily avoided that A is stored in the storage container 126, and the leafy vegetables A can be prevented from being damaged.
[0094]
  Further, since the transport speed of the second transport means 142 is set slower than the transport speed of the first transport means 141, the leaf vegetables A adjacent in the transport direction on the first transport means 141 side can be brought closer to each other. Compared with the configuration set to the same conveyance speed, leaf vegetables A can be efficiently and compactly integrated.
[0095]
  Furthermore, since the conveying and accumulating means 143 is formed in a semicircular arc shape opened upward, the leafy vegetables A being accumulated are pressed by a relatively large force from above compared to the configuration formed in a substantially circular shape. The leaf vegetables A can be prevented from being damaged.
[0096]
  Further, when the leaf vegetable A is stored in the storage container 126 using the conveyor device 140 for accumulation, a relatively strong external force other than the gravity received from the other leaf vegetable A does not act on the leaf vegetable A. Damage to leafy vegetables A can be effectively prevented.
[0097]
  Further, the conveying devices 8a and 8b convey the leaf vegetables A having the root A2 cut by the root cutting device 7 from the conveying start end side toward the conveying end side, and the number of leaf vegetables A on the conveying end side is conveyed. Since the leafy vegetables A are merged in the middle of the conveyance so that the number of leafy vegetables A is less than the number of the leafy vegetables A on the start side, the work efficiency is improved by simultaneous harvesting of multiple lines, and the number of leafy vegetables A on the conveyance start side is However, compared with the structure maintained, the leaf vegetables A can be easily handled downstream in the transport direction, and the size can be reduced.
[0098]
  In particular, by reducing the size of the rear upper part of the aircraft body 1 in the front, rear, and rear shape, the weight balance of the aircraft is good and the structure is less likely to sway from side to side, and damage to the leaf A1 of the leaf vegetable A can be prevented. .
[0099]
  Further, the leafy vegetables A carried out from the pair of left and right transport devices 8a and 8b are sequentially accommodated in the accommodation container 126 in a state where the leafy vegetables A adjacent in the lateral direction in a sideways posture are hardly overlapped vertically. Therefore, not only can the accommodation efficiency be improved, but the leafy vegetables A can be accommodated without being entangled, and subsequent preparation operations and the like can be simplified. That is, it is possible to efficiently perform an operation of removing unnecessary leaves, an operation of cutting long roots, an operation of measuring a fixed amount, and packing in a subsequent process.
[0100]
  Further, the leaf vegetables A from the pair of left and right transport devices 8a and 8b are stored in the storage container 126 so that the leaf portions A1 of the adjacent leaf vegetables A face each other, so that the soil adhering to the root portion A2 is attached to the leaf portions A1. There is no sticking.
[0101]
  Further, the leafy vegetables A are prevented from falling from the conveyance path gaps 85, 86, 88, 88a by the contact protrusions 95, 106 of the opposite conveyance belts 101a, 101b of the first conveyance unit 81 of the conveyance devices 8a, 8b. Since the opposite conveying belts 101a and 101b are transported in a predetermined direction without being clamped and sandwiched by the opposite conveying belts 101a and 101b while gradually changing the posture in the mounted state, an unreasonable force is applied to the leaf portion A1 of the leafy vegetables A during the transportation. It does not act and can prevent the leaf A1 from being damaged.
[0102]
  Further, the contact protrusions 95 and 106 protrude from the surface of the opposing conveyance belts 91, 101a, and 101b based on elastic deformation when the conveyance conveying ends 91, 101a, and 101b reach the conveyance end position. Since the amount is reduced, the leaf vegetables A are not carried around, the leaves A1 of the leaf vegetables A can be separated, and the leaf vegetables A can be carried out smoothly.
[0103]
  Further, a guide device 9 that guides the leaf vegetable A to the transport start end side of the transport devices 8a and 8b while raising the leaf portion A1 of the leaf vegetable A hanging is supported by the body 1 via the elastic support member 55. Since the elastic support 55 such as a leaf spring is elastically deformed based on the vibration of the airframe 1 due to the unevenness of the ground surface 3 of the field, an unreasonable force acts on the leaf part A1 of the leaf vegetable A from the guide device 9. This prevents damage to the leaf vegetable A.
[0104]
  Further, even if the front part of the machine body 1 moves up and down somewhat due to the unevenness of the ground surface 3 of the farm field, the guidance start end of the guide device 9 is in close contact with the ground surface 3 by the elastic support body 55, so that it droops. The leaf A1 can surely enter under the lying leaf A1, and the leaf A1 can be appropriately scooped up.
[0105]
  In addition, although the said one embodiment demonstrated as a structure which is a semi-covered belt type and a walk-type conveyance apparatus, the structure of a wheel type or a banded shape may be sufficient, and the structure of the riding type provided with the cockpit may be sufficient.
[0106]
  In any of the embodiments, the root cutting blades 11a and 11b have been described as being capable of vibrating in the front-rear direction of the machine body 1. However, for example, any of the horizontal cutting direction of the machine body 1, the horizontal inclination direction of the machine body 1, etc. A configuration that can vibrate in the direction may be used, or a configuration that is fixedly supported.
[0107]
  Further, in any of the embodiments, the pair of left and right conveying devices 8a and 8b are attached to the body 1 so that the two-row leaf vegetables A are accommodated in the accommodation container 126 with the leaf portions A1 of the adjacent leaf vegetables A facing each other. Although the arrangement has been described, although not shown, a pair of left and right conveying devices 8a and 8b are arranged in the body 1 so that two strips of leaf vegetables A are accommodated with the roots A2 of adjacent leaf vegetables A facing each other. Good.
[0108]
  In any of the embodiments, the pair of transfer apparatuses 8a and 8b are described as being arranged in parallel with the machine body 1. However, the machine body 1 may be provided with only one transfer apparatus 8a, or the transfer apparatus 8a. In this case, a conveyor device 140 is provided corresponding to the conveying devices 8a and 8b.
[0109]
  Furthermore, in any of the embodiments, the first conveying means 141 and the second conveying means 142 of the conveyor device 140 have been described as roller conveyors each including a first conveying roller 146 and a second conveying roller 151. For example, the same effect can be obtained with the configuration of the belt conveyor shown in FIG. Although not shown, one of the first conveying means 141 and the second conveying means 142 may be a roller conveyor and the other may be a belt conveyor.
[0110]
  The first conveying means 141 shown in FIG. 16 has a pair of end rollers 161 and 162 which are opposed to each other, and an endless first conveying belt 163 can travel between the end rollers 161 and 162. It is wrapped around. The first conveyor belt 163 travels along the guide body 164 so that the leafy vegetables A can be conveyed in the arc-shaped conveyance direction, and has the same effect as the first conveyance roller 146 shown in FIG. Play. Similarly, the second conveying means 142 shown in FIG. 16 has a pair of end rollers 165 and 166 that are spaced apart from each other, and an endless second conveying belt 167 is interposed between these end rollers 165 and 166. It is wrapped so that it can run. The second conveying belt 167 is configured to be able to convey leafy vegetables A in the arc-shaped conveying direction by traveling along the two guide bodies 168, and is similar to the second conveying roller 151 shown in FIG. Has an effect. An endless body 169 for power transmission is wound between the end roller 162 of the first transport means 141 and the end roller 165 of the second transport means 142.
[0111]
  In any of the embodiments, the first conveying means 141 and the second conveying means 142 are formed in an arc shape centered on a common arc center O in side view, that is, the entire conveyor device 140 is formed. Although described as a U-shaped configuration, for example, although not shown, the entire conveyor device 140 may have a V-shaped configuration, or at least one of the first conveying means 141 and the second conveying means 142. A configuration in which one of them is arcuate may be used.
[0112]
  In any of the embodiments, the transport stacking unit 143 rotates the second transport unit 142 around the transport start end side to move the second transport unit 142 from the stacking posture to the unloading posture. The configuration has been described in which the posture is changed and the predetermined amount of leafy vegetables A is automatically carried out. However, for example, the configuration of the transport stacking unit 143a shown in FIG. 17 also has the same effect as the transport stacking unit 143 shown in FIG.
[0113]
  That is, the transport stacking unit 143a shown in FIG. 17 includes a first transport unit 141a different from the first transport unit 141 shown in FIG. The first transfer means 141a has a transfer start end portion rotatably attached to the transfer end portions of the transfer apparatuses 8a and 8b, and a carry-out posture in which the leaf vegetables A can be carried out from an accumulation posture in which the leaf vegetables A can be accumulated by rotation. The posture can be changed. Further, the transport stacking unit 143a includes a second transport unit 142a different from the second transport unit 142 shown in FIG. 14, and the second transport unit 142a rotates around the transport terminal side located above. The posture can be changed from a stacking posture in which the leaf vegetables A can be stacked by rotation and from a stacking posture in which the leaf vegetables A can be unloaded.
[0114]
  When the amount of leafy vegetables A accumulated in the first conveying means 141a and the second conveying means 142a both in the accumulation posture reaches a predetermined amount, both the first conveying means 141a and the second conveying means The means 142a is rotated toward the direction away from each other based on the change of the urging direction of the tension coil springs 156a, 156a of the urging means which is the driving means provided corresponding to each of the means 142a. As a result, the conveying and accumulating means 143a is changed from the closed state to the opened state, and a predetermined amount of leafy vegetables A are collected and automatically discharged toward the storage unit.
[0115]
  Furthermore, for example, the configuration of the transport stacking unit 143b shown in FIG. 18 also has the same effects as the transport stacking unit 143 shown in FIG. The transport stacking unit 143b shown in FIG. 18 includes a first transport unit 141b different from the first transport unit 141 shown in FIG. The first transfer means 141b is formed in a linear shape with the transfer end side inclined downward, and the transfer start end portion is fixedly connected to the transfer end portions of the transfer apparatuses 8a and 8b. Further, the conveying and accumulating means 143b includes a second conveying means 142b different from the second conveying means 142 shown in FIG. 14, and the second conveying means 142b is formed in a semicircular arc shape opened upward. The posture can be changed from a stacking posture in which the leaf vegetables A can be stacked to a carry-out posture in which the leaf vegetables A can be unloaded.
[0116]
  When the amount of leafy vegetables A accumulated in the second conveying means 142b in the accumulation posture reaches a predetermined amount, the second conveying means 142b is a tension coil spring 156b as an urging means that is a driving means. Based on the change of the urging direction, the conveying start end side is rotated in the direction of descending to change from the accumulation posture to the unloading posture. As a result, the conveyance accumulation means 143b is changed from the closed state to the opened state, and a predetermined amount of leaf vegetables A are It is automatically carried out toward the storage unit in a collective state. The second transport unit 142b may be configured to be rotatable about the transport start end side.
[0117]
  Further, for example, instead of the stacking conveyor device 140 shown in FIG. 4 and the like, a conveyor device 140a shown in FIGS. 19 and 20 may be provided in the machine body 1a. Note that, unlike the machine body 1 shown in FIG. 4, the machine body 1 a does not have the accommodating portion 10 at the rear end, and does not have the container placing portion 13 a on the frame 13.
[0118]
  As shown in FIG. 20, the conveyor device 140a differs from the conveyor device 140 shown in FIG. 14 in that a hooking portion 200 capable of hooking a storage container 126 having an upper surface opened at the transfer terminal portion of the transfer stacking means 143 is provided. Is provided. That is, the hook 200 is provided at the end of the second transport means 142 on the free end side of the movable frames 150a and 150b so as to protrude in the direction opposite to the leaf vegetable A side. When the portion 200 enters a recess 201 formed on the outer surface side of the upper end portion of the storage container 126, the storage container 126 is detachably hooked on the hook portion 200.
[0119]
  Further, as shown in FIG. 19, the conveyor device 140a differs from the conveyor device 140 shown in FIG. 14 in that when the amount of leaf vegetables A accumulated in the transport accumulation means 143 reaches a predetermined amount, the leaf vegetables A The urging direction is changed by the pressing by the container container 126 and the container container 126 hooked on the hooking part 200 so that the transport stacking means 143 is changed from the closed state to the opened state, and falls from the upper surface opening of the container container 126 to the inside. A tension coil spring 202 is provided as an urging means for carrying a predetermined amount of the object to be conveyed into the storage container 126.
[0120]
  Further, as shown in FIG. 19, the stopper body 203 in the conveyor device 140a is provided at a position different from the stopper body 160 of the conveyor device 140 shown in FIG.
[0121]
  In the initial state before the leaf vegetables A are accumulated, the second transport unit 142 is in a state where the transport end side is located closer to the arc center O side than the reference position along the arc-shaped transport direction of the first transport unit 141. And is held by the stopper body 203, and the first conveying means 141 and the second conveying means 142 are a little closer to each other and are substantially facing each other. The conveying and accumulating means 143 has a substantially semicircular arc shape close to a semicircular arc shape opened upward even in this initial state, and the leaf vegetables A are accumulated in a roll shape.
[0122]
  The conveying and accumulating means 143 of the accumulating conveyor device 140a is such that the second conveying means 142 is in the accumulating posture when each of the first conveying rollers 146 and each of the second conveying rollers 151 rotates synchronously in a predetermined direction. In some cases, the leaf vegetables A that are continuously transported one by one from the transport end portions of the second transport units 82 and 82 of both transport devices 8a and 8b are received, and the received leaf vegetables A that are in the sideways posture are sequentially transported. .
[0123]
  By this conveyance, as shown in FIG. 21, the leaf vegetables A are not damaged while maintaining the continuous state of the leaf vegetables A on the opposite surfaces of the first conveyance means 141 and the second conveyance means 142. Since it can wind up, leafy vegetables A are reliably collected in roll shape. That is, as the leaf vegetables A adjacent to each other in the transport direction are kept in a continuous state, the second transport means 142 is pressed by the leaf vegetables A as the leaf vegetables A are rolled and stacked one after another. Is gradually rotated around the conveyance start end side, and as a result, the leafy vegetables A are reliably accumulated in a cylindrical shape or a shape close to a cylindrical shape without being damaged.
[0124]
  Then, as shown in FIG. 20, for example, when the amount of leafy vegetables A0 accumulated in a columnar shape reaches a predetermined amount set in advance, the operator stops traveling of the machine body 1a.
[0125]
  Next, the worker hooks the concave portion 201 of the storage container 126 on the hook portion 200 of the second transport means 142. Then, the tension coil spring 202 changes the urging direction by the pressing by the predetermined amount of leaf vegetables A0 and the pressing by the storage container 126 hooked on the hook portion 200, and the urging direction of the tension coil spring 202 is changed. As a result, the conveying and accumulating means 143 is opened, and as a result, a predetermined amount of the object to be conveyed A0 is dropped and accommodated in the accommodating container 126 lowered to the ground surface 3.
[0126]
  That is, the tension coil spring 202 receives a predetermined amount of the leaf vegetables A0, the storage container 126, and the like, and is elongated in the axial direction and is gradually rotated around the one spring holding portion 157. Then, with the rotation of the tension coil spring 202, the movable frames 150a and 150b of the second conveying means 142 rotate around the support shaft portion 146a which is the rotation center of one end.
[0127]
  Then, by the rotation of the movable frames 150a and 150b, the other spring holding portion 158 is a reference line which is a dead line connecting the one spring holding portion 157 shown in FIG. 19 and the rotation center of the movable frames 150a and 150b. When passing on the line X, the movable frames 150a and 150b momentarily rotate in the clockwise direction in the figure against the urging force of the tension coil spring 202, and the conveyance end of the conveyance accumulating means 143 The side changes from the closed state to the open state, and the second conveying means 142 changes its posture from the accumulation posture to the unloading posture. When the tension coil spring 202 is positioned along the reference line X, that is, when the amount of the leaf vegetable A being accumulated reaches a predetermined amount, the axial length becomes maximum.
[0128]
  When the second transport unit 142 is in the carry-out posture, the predetermined amount of leafy vegetables A0 falls by its own weight while being pushed by the rotation of the first transport roller 146 and the second transport roller 151, and the second transport unit 142. Are smoothly carried out in a state of being collected in a columnar shape from the transfer end portion of the paper, and stored in the storage container 126.
[0129]
  Thus, also in this conveyor device 140a, until the amount of leaf vegetable A accumulated in the conveying and accumulating means 143 reaches the predetermined amount set in advance, the tension coil spring 202 moves the conveying end side of the conveying and accumulating means 143. By energizing the leaf vegetable A toward the side relatively toward the side of the leaf vegetable A, the conveyance end side is held in a closed state. Further, the tension coil spring 202 is energized based on the hooking of the storage container 126 to the hooking portion 200 when the amount of the leaf vegetables A accumulated in the conveying and stacking means 143 reaches a predetermined amount. The direction is changed, the conveyance end side of the conveyance accumulating means 143 is changed from the closed state to the open state, and a predetermined amount of leafy vegetables A are taken out from the conveyance end portion in a collective state.
[0130]
  Therefore, compared to the conventional configuration in which the leaf vegetables A are continuously carried out one by one, the operation relating to the leaf vegetables A can be facilitated downstream in the transport direction of the stacking conveyor device 140a. The same effect as the device 140 can be obtained. Note that the hooking portion 200 of the conveyor device 140a may be configured to be gripped so that an operator can operate it by hand without hooking the storage container 126.
[0131]
  Furthermore, the conveyor devices 140 and 140a can be used for various devices other than the leaf vegetable harvesting machine, and can also be applied to the case of conveying an object to be conveyed other than agricultural products such as the leaf vegetable A.
[0132]
【The invention's effect】
ContractClaim1According to the described invention,When the amount of the object to be conveyed that is accumulated on the second conveying means in the accumulating posture reaches a predetermined amount, the driving means changes the posture of the second conveying means from the accumulating posture to the unloading posture, and the predetermined amount Since the objects to be transported are carried out, handling of the objects to be transported downstream in the transport direction can be facilitated as compared with the conventional configuration in which the objects to be transported are continuously carried out one by one. In addition, since the driving unit changes the posture of the second transfer unit from the stacking posture in which the transfer end side faces upward to the unloading posture in which the transfer end side faces downward, a predetermined amount of the object to be transferred can be appropriately carried out. . further,In the initial state before stacking the objects to be transported, the second transport means has the transport end side positioned closer to the arc center side than the reference position along the arc-shaped transport direction of the first transport means, and stacks the objects to be transported. Accordingly, the second object is kept on the reference position in the initial state while maintaining the continuous state of the object to be conveyed, because the rotation by the object to be conveyed rotates around the conveyance start end side. Since the objects to be conveyed can be wound up appropriately, the objects to be conveyed can be accumulated in a compact manner.
[0133]
  Claim2According to the described invention, since the transport speed of the second transport means is set slower than the transport speed of the first transport means, the objects to be transported adjacent to each other in the transport direction on the first transport means side are mutually connected. The objects to be conveyed can be accumulated in a compact manner compared to a configuration in which they can be close to each other and set to the same conveyance speed.
[0134]
  Claim3According to the described invention, since a predetermined amount of the objects to be conveyed is unloaded from the conveyor device, it becomes easy to handle the objects to be conveyed downstream in the conveying direction, and an operator who has conventionally required leaf vegetables and the like. It is possible to eliminate the need for operations such as picking it up appropriately and transferring it into the storage container, thereby improving the harvesting work efficiency.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a harvesting machine of the present invention.
FIG. 2 is a plan view in which a part of the harvesting machine is omitted.
FIG. 3 is an enlarged plan view of a part of the same harvesting machine.
FIG. 4 is a side view of the same harvester.
FIG. 5 is an enlarged side view of a part of the harvesting machine.
FIG. 6 is an enlarged side view of a part of the same harvesting machine.
FIG. 7 is a plan view of an opposing transport belt of the transport device of the harvester.
FIG. 8 is a plan view of a merging portion of the transfer device of the harvester.
9 is a side view of the same harvester as seen in the direction of the arrow in FIG.
FIG. 10 is a view showing leaf vegetables being guided by the guidance device of the harvesting machine.
FIG. 11 is a diagram showing leafy vegetables being transported by the double strip transport means of the transport device of the harvesting machine.
FIG. 12 is a view showing leafy vegetables being transported by the single strip transport means of the transport device of the harvesting machine.
FIG. 13 is a rear view of the conveyor device of the harvesting machine.
FIG. 14 is a side view of the conveyor device.
FIG. 15 is a diagram showing a process of accumulating leafy vegetables by the conveyor device.
FIG. 16 is a side view of a modified example of the conveyor device.
FIG. 17 is a schematic view of another modified example of the conveyor device.
FIG. 18 is a schematic diagram of still another modified example of the conveyor device.
FIG. 19 is a side view of still another modified example of the conveyor device.
FIG. 20 is a view showing a state in which the storage container is hooked on the hook portion of the conveyor device.
FIG. 21 is a diagram showing a process of accumulating leafy vegetables by the conveyor device.
[Explanation of symbols]
        1,1a Aircraft
        126 container
        140,140a Conveyor equipment
        141, 141a, 141b First conveying means
        142, 142a, 142b Second conveying means
        143, 143a, 143b Conveying and collecting means
        156, 156a, 156b, 202 Tensile coil spring as drive means and biasing means
        200 Hook

Claims (3)

被搬送物を搬送する第１の搬送手段と、
この第１の搬送手段の下流位置に、被搬送物を集積可能な集積姿勢から被搬送物を搬出可能な搬出姿勢へと姿勢変更されるように搬送方向の一端側を中心として回動可能に設けられ、前記第１の搬送手段からの被搬送物を搬送する第２の搬送手段と、
前記集積姿勢にある前記第２の搬送手段に集積される被搬送物の量が所定量に達した場合に、前記第２の搬送手段を前記集積姿勢から前記搬出姿勢へと姿勢変更させ、所定量の被搬送物を搬出させる駆動手段とを具備し、
前記第２の搬送手段は、搬送終端側が上方を向いた集積姿勢から搬送終端側が下方を向いた搬出姿勢へと姿勢変更されるように、搬送始端側を中心として回動可能に設けられ、
前記第１の搬送手段および前記第２の搬送手段の各々は、同じ曲率半径の円弧形状に形成され、
前記第２の搬送手段は、被搬送物を集積する前の初期状態では搬送終端側が前記第１の搬送手段の円弧状の搬送方向に沿った基準位置より円弧中心側に位置し、被搬送物を集積するに従ってこの被搬送物による押圧で搬送始端側を中心として回動する
ことを特徴とするコンベヤ装置。 First conveying means for conveying an object to be conveyed;
At the downstream position of the first transport means, it is rotatable about one end side in the transport direction so that the posture is changed from the stacking posture capable of stacking the transported materials to the unloading posture capable of unloading the transported materials. Provided, a second conveying means for conveying an object to be conveyed from the first conveying means;
When the amount of the object to be conveyed that is accumulated on the second conveying means in the accumulation posture reaches a predetermined amount, the posture of the second conveying means is changed from the accumulation posture to the unloading posture, A driving means for carrying out a fixed amount of the object to be conveyed;
The second transport means is provided so as to be rotatable about the transport start end side so that the posture is changed from the stacking posture in which the transport end side faces upward to the carry-out posture in which the transport end side faces downward.
Each of said first conveying means and said second conveying means, is formed in an arc shape of the same radius of curvature,
In the initial state before the objects to be conveyed are accumulated, the second conveying means is positioned such that the conveying terminal side is closer to the arc center side than the reference position along the arc-shaped conveying direction of the first conveying means. The conveyor device is characterized in that the conveyor device is rotated around the conveyance start end side by pressing by the object to be conveyed. 第２の搬送手段は、被搬送物の搬送速度が第１の搬送手段の搬送速度に比べて遅く設定されている
ことを特徴とする請求項１記載のコンベヤ装置。Second transport means, conveyor apparatus according to claim 1, wherein the conveying speed of the object to be conveyed is set slower than the conveying speed of the first conveying means. 機体と、
この機体に設けられ、被搬送物である農作物を搬送する請求項１または２記載のコンベヤ装置と、
このコンベヤ装置から搬出される農作物を収容する収容コンテナと
を具備したことを特徴とする収穫機。The aircraft,
The conveyor device according to claim 1 or 2 , wherein the conveyor device is provided on the machine body and conveys a farm product as a transported object.
A harvesting machine comprising a storage container for storing agricultural products carried out from the conveyor device.
JP2000038865A 2000-02-16 2000-02-16 Conveyor equipment and harvester Expired - Fee Related JP3645775B2 (en)

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