JP3541024B2

JP3541024B2 - Seedling supply method and seedling supply device for transplanter

Info

Publication number: JP3541024B2
Application number: JP2001217396A
Authority: JP
Inventors: 強七戸; 晶一北口
Original assignee: 株式会社ホクエイ
Priority date: 2001-02-05
Filing date: 2001-07-18
Publication date: 2004-07-07
Anticipated expiration: 2021-07-18
Also published as: JP2002300804A

Description

【０００１】
【発明が属する技術分野】
本発明は、紙筒苗のような集合苗から列状に分離した苗を供給し二つの苗植付装置に受け渡して本圃に移植する移植機において、一箇所の苗受入部に供給された苗を左右に分けて二つの苗植付装置に受け渡す移植機の苗供給方法及び苗供給装置に関する。
【０００２】
【従来の技術】
複数条を植え付ける移植機において、装置を小型化するために一つの苗供給装置から二つの苗植付装置に受け渡すものや、作業者を減らすために一つの苗受入装置から二つの苗植付装置に受け渡すものが知られている。
【０００３】
装置を小型化するために、一箇所の苗受入部に供給された苗を左右に分割して二つの苗植付装置に受け渡す移植機の苗供給装置は、実公平１−４２９７８号として提案されている。
【０００４】
この移植機の苗供給装置は、苗箱から押出された横一列の苗を互いに反対方向に回動する一対の搬送ベルトに受け、これら搬送ベルトの端縁から左右の植付装置に分割供給するように構成されている。そして、苗載台上に苗箱のまま搭載されたポット苗の葉絡みを苗箱中央部で分離するよう、苗載台に対向させて葉絡み分離板を設け、一対の搬送ベルトに同数の苗を供給している。
【０００５】
苗載台と一対の搬送ベルトの間に往復動する苗受けアームが設けられ、苗載台後方から押出杆が苗箱の横一列のポット苗を前方に押出し、苗受けアームがこれを受けて搬送ベルト上面に載置する。
【０００６】
また作業者を減らすために、一つの苗受入装置に供給された苗を振分けて二つの苗植付装置に受け渡す移植機の苗供給方法及び装置は、特公平５−４４２４４号として提案されている。
【０００７】
この移植機の苗供給方法及び装置は、一つの苗受入装置としての一本のベルトに横一列の苗を受け入れ、個々の苗に分離して離間させ、苗選別整列装置で欠株苗を除去した後に密着整列させ、再び離間させて検知手段で個々の苗を検知して振分け部体を制御し、その振分け部体により二つの苗植付装置に交互に個々の苗を振分けて受け渡すものである。
【０００８】
上記移植機の苗受入装置に供給される苗は、紙筒苗のような集合苗から横一列に列状に分離した苗であり、列状に分離するには実公平３−２７３７４号に示されるような、当板と当板に支架されて回動する円弧状針による分離具を用いる。
【０００９】
【発明が解決しようとする課題】
前記従来の技術の、特公平５−４４２４４号の苗受入装置に供給される紙筒苗のような集合苗から横一列に列状に分離した苗は、個々の苗相互が紙筒部で分離可能に結合されていて、所要の力を加えないと分離されない。
【００１０】
そのため、上記従来例では個々の苗に分離し離間した後、二つの苗植付装置に交互に個々の苗を振分けて受け渡すようにしているが、その振分け部体としての翼辺付きローラが一個一個の苗に対応して左右に回動して苗を左右に振分けるため、翼辺付きローラの左右回動速度に限界があるため自ずと移植速度が制限される。また、一個一個の苗が左右に交互に振分けられ、苗が急激に搬送方向を変えられるため、紙筒中の培土が振り落とされるなどの苗傷みが生ずる。
【００１１】
また、作業者が増えても一つの苗受入装置としての一本のベルトに横一列の苗を受け入れるものであるため、苗の供給は一箇所でしか行えず、作業能率を向上させることはできない。
【００１２】
さらに、実公平１−４２９７８号に示されるような、互いに反対方向に回動する一対の搬送ベルトの両方に渡って苗を供給する方法も考えられるが、上記結合した列状苗を単に載せても、一対の搬送ベルトの接合部から分割されるとは限らず、結合の弱い部分から分割されたり、全く分割されずに苗が進行しないことも想定される。また、苗選別整列装置で欠株苗を除去した後に密着整列させる場合には、欠株苗が左右に同数供給されるとは限らず、一対の搬送ベルトに同数の苗を供給したのでは過不足が生じてしまう。
【００１３】
なお、上記実公平１−４２９７８号には一対の搬送ベルトの接合部上方に位置する葉絡み分離板が示されているが、葉絡み分離板は苗載台に対向させて設けられ、葉絡み分離板と搬送ベルトの間に苗受けアームが設けられ、押出杆がポット苗を前方に押出す前に苗箱のまま搭載されたポット苗の葉絡みを苗箱中央部で分離するものであって、上記結合した列状苗を分割することはできない。
【００１４】
そこで本発明は、一箇所の苗受入部に苗を受け入れた後直ちに左右に分けて二つの苗植付装置に受け渡すことにより、移植速度の制限や苗傷みを発生させること無く、作業者が増えた場合には二箇所に苗を供給できる、移植機の苗供給方法及び苗供給装置を提供することを目的とする。
【００１５】
【課題を解決するための手段】
請求項１の発明による移植機の苗供給方法は、紙筒苗のような集合苗Ｐから列状に分離した苗Paを供給し二つの苗植付装置10a，10bに受け渡して本圃に移植する移植機において、一箇所の苗受入部２に二つの苗植付装置10a，10bに向けて搬送する一対の搬送手段3a，3bを設け、その一対の搬送手段3a，3bの両方に渡る任意な位置に列状の苗Paを供給し、一対の搬送手段3a，3bの間で供給された列状の苗Paの任意な位置で左右に分割し、一箇所の苗受入部２に供給された苗Paを左右に分けて二つの苗植付装置10a，10bに受け渡すものである。
【００１６】
請求項２の発明による移植機の苗供給装置は、紙筒苗のような集合苗Ｐから列状に分離した苗Paを供給し二つの苗植付装置10a，10bに受け渡して本圃に移植する移植機において、一箇所の苗受入部２に互いに反対方向に回動する一対の苗受入ベルト3a，3bを設け、一対の苗受入ベルト3a，3bの送出端は各々の苗植付装置10a，10bに連設し、列状の苗Paを一対の苗受入ベルト3a，3bの両方に渡る任意な位置に供給し、一対の苗受入ベルト3a，3bの間で供給された列状の苗Paの任意な位置で一対の苗受入ベルト 3a ， 3b 又は分割装置４， 20 により左右に分割し、一箇所の苗受入部２に供給された苗Paを左右に分けて二つの苗植付装置10a，10bに受け渡すものである。
【００１７】
請求項３の発明による移植機の苗供給装置は、列状の苗Paを分割するのは一対の苗受入ベルト3a，3bであり、供給された列状の苗Paの上に当板31を位置させ、当板31を苗Paごと一対の苗受入ベルト3a，3bに押し付けて苗Paを左右に分割するものである。
【００１８】
【発明の実施の形態】
請求項１の発明では、一対の搬送手段3a，3bの両方に渡る任意な位置に列状の苗Paを供給し、一対の搬送手段3a，3bの間で供給された列状の苗Paの任意な位置で左右に分割するから、一箇所の苗受入部２に苗Paを供給した後直ちに左右に分割される。
【００１９】
また、一対の搬送手段3a，3bの各々に供給する苗Paの本数を任意に変えることができる。またさらに、一対の搬送手段3a，3bの各々二箇所に苗Paを供給することもできる。
【００２０】
請求項２の発明では、列状の苗Paを一対の苗受入ベルト3a，3bの両方に渡る任意な位置に供給し、一対の苗受入ベルト3a，3bの間で供給された列状の苗Paの任意な位置で一対の苗受入ベルト 3a ， 3b 又は分割装置４， 20 により左右に分割するから、一箇所の苗受入部２に苗Paを供給した後直ちに左右に分割する。
【００２１】
また、一対の苗受入ベルト3a，3bの各々に供給される苗Paの本数を任意に変えることができる。またさらに、一対の苗受入ベルト3a，3bの各々二箇所に苗Paを供給することもできる。
【００２２】
請求項３の発明では、列状の苗Paを分割するのは一対の苗受入ベルト3a，3bであり、供給された列状の苗Paの上に当板31を位置させ、当板31を苗Paごと一対の苗受入ベルト3a，3bに押し付けて苗Paを左右に分割するから、分離具30などの当板31に苗Paを沿わせたまま苗受入ベルト3a，3bに押し付けると、苗Paは当板31と苗受入ベルト3a，3bに挟まれ、苗受入ベルト3a，3bの回動により回転するように分割される。
【００２３】
【実施例】
以下、本発明の一実施例を図面を参照して説明する。
【００２４】
集合苗Ｐとして、紙筒集合育苗容器による根部が培土に覆われた紙筒苗Paを示している。この紙筒集合育苗容器は、展開すると六角柱状の上下が開口した多数の紙筒を、整然と糊で貼り合わせたものである。この紙筒中に培土を詰めて播種して育苗すると苗が生長して紙筒集合苗Ｐとなり、移植時には適度の連結強度を保って個々の苗Paに分離可能に整然と連結している。
【００２５】
そして、紙筒集合育苗容器による分離された個々の苗Paは培土が紙筒に包まれているが、衝撃を与えると培土が緩み抜けて根痛みを発生させることがある。
【００２６】
集合苗Ｐから横一列の列状の苗Paに分離する分離具30は、集合苗Ｐの側面に沿わせる当板31と、当板31の背面に支架されて回動する多数の円弧状針32と、当板31の背面中央の把手33と、円弧状針32を回動させるハンドル34とからなる。
【００２７】
作業者は把手33とハンドル34を持ち、当板31を集合苗Ｐの側面に沿わせ、円弧状針32を集合苗Ｐの紙筒上面から突き刺し、分離具30を手前下方に傾けて横一列の苗Paの全体を反らせて分離する。横一列に列状に分離した苗Paは、個々の苗相互が紙筒の六角の辺で結合されている。
【００２８】
分離した苗Paは、分離具30と共に苗供給装置１の苗受入部の上に苗Paを倒置して載せてから分離具30の円弧状針32を抜く。このとき、ハンドル34で円弧状針32を抜く反動で、作業者は意識することなく自然に当板31の把手33を苗受入部に押し付ける。
【００２９】
つぎに、列状に分離した苗Paを供給する苗供給装置１と、苗供給装置１が二つの苗植付装置10a，10bに受け渡し、苗植付装置10a，10bが本圃に移植する、二条を一度に本圃に移植する二畦用の移植機について説明する。
【００３０】
図１は機枠の記載を省略した移植機であり、トラクターに取り付けられて牽引され、図示手前方向に進行する。上方の苗供給装置１には、左右一対の苗供給装置枠5a，5bが設けられ、苗供給装置枠5a，5bは機枠に固定される。
【００３１】
苗供給装置枠5a，5bの下方に左右一対の苗植付装置10a，10bを設け、二つの苗植付装置10a，10bには各々前後方向に長い植付装置枠11a，11bを設ける。
【００３２】
植付装置枠11a，11bはその前端が機枠の左右に長い牽引杆に係止され、その後端側は圃場の凹凸により自由に上下する。植付装置枠11a，11bの下方にオープナー12と、植付装置枠11a，11bの左右に一対の鎮圧輪13と、植付装置枠11a，11b内に一対のゴム円盤14が設けられ、これらオープナー12と鎮圧輪13とゴム円盤14により苗Paを本圃に移植する。鎮圧輪13は圃面に接地していて機枠の進行により回転して装置の動力を供給する。
【００３３】
苗供給装置枠5a，5bから、一箇所の苗受入部２に二つの苗植付装置10a，10bに向けて搬送する一対の搬送手段としての一対の苗受入ベルト3a，3bを設ける。
【００３４】
苗供給装置枠5a，5bから左右一対の苗受入ベルト枠6a，6bを設け、苗受入ベルト枠6a，6bの両端に設けたプーリーの間に苗受入ベルト3a，3bを掛け渡す。一対の苗受入ベルト3a，3bはその上面が水平な一直線状とし、互いに反対方向つまりその上面が外側に回動し、各苗受入ベルト3a，3bの長さは横一列に分離した苗Paの幅より長くし、一対の苗受入ベルト3a，3bの送出端はベルト等を介して各々の苗植付装置10a，10bに連結される。
【００３５】
苗受入ベルト3a，3bの搬送始端の間はできるだけ狭くし、分割装置４，20を用いる場合は分割装置４，20が収まるようできるだけ狭くし、苗受入ベルト3a，3bの幅は苗Paの紙筒部と葉部の全部が載る広い幅とする。
【００３６】
苗受入ベルト3a，3bの機械進行方向前側、つまり苗Paの根先側にゲージ板7a，7bを設ける。ゲージ板7a，7bは苗受入ベルト枠6a，6bに固定され、ゲージ板7a，7bは苗受入ベルト3a，3bに列状に分離した苗Paを供給するに際し、苗Paの根先を当てて苗Paが苗受入ベルト3a，3bの所定位置に載るようにする。
【００３７】
まず第一実施例として、図５および図６に示す、一対の搬送手段としての一対の苗受入ベルト3a，3bのみにより分割し、別な分割装置４，20を用いないものについて説明する。
【００３８】
列状の苗Paを分割するのは一対の苗受入ベルト3a，3bであり、一対の苗受入ベルト3a，3bの間に苗を左右に分ける分割装置４，20は設けない。供給された列状の苗Paの上に当板31を位置させ、当板31を苗Paごと一対の苗受入ベルト3a，3bに押し付けて苗Paを左右に分割する。
【００３９】
つぎに第二実施例として、図３および図４に示す、一対の搬送手段としての一対の苗受入ベルト3a，3bの間に位置し、苗Paを左右に分ける分割装置としての分割板４について説明する。
【００４０】
分割板４は機械進行方向に長く、垂直方向に薄い略板状のもので、その両端は左右一対の苗受入ベルト枠6a，6bの間に固定される。分割板４は苗受入ベルト3a，3bの上面より上方に突出させ、突出高さは苗Paの紙筒直径よりやや大とする。
【００４１】
分割板４の苗受入ベルト3a，3bの上面より上方に突出させた部分の長さは、苗受入ベルト3a，3bの幅とほぼ同じとする。分割板４の上端部は薄い板状で、中間部は分割板４と苗受入ベルト3a，3bの搬送始端との間に苗Paが滞らないよう膨らんだ略三角形状とし、下端部は苗受入ベルト3a，3bの搬送始端に接触しないよう薄くする。
【００４２】
つぎに第三実施例として、図７から図９に示す、一対の搬送手段としての一対の苗受入ベルト3a，3bの間に位置し、苗Paを左右に分ける分割装置としての分割装置20について説明する。
【００４３】
分割装置20として、苗受入ベルト3a，3bの上面より上方に突出した一対の左右分割板21a，21bと、左右分割板21a，21bを取り付ける一対の左右分割アーム22a，22bと、苗受入ベルト枠6a，6bに固定され左右分割アーム22a，22bを取り付ける左右分割枠23と、一対の左右分割アーム22a，22bの間に取り付けられ一対の左右分割板21a，21bを閉じる方向に付勢するバネ24を設ける。
【００４４】
左右分割板21a，21bは閉じた状態の正面視で、中央が上方に突出した三角山形状で、その頂点が苗受入ベルト3a，3bの上面より苗Paの紙筒直径の半分程度の高さ突出させる。左右分割板21a，21bは機械進行方向に長く、その長さは苗Paの紙筒部の長さとほぼ同じとし、苗受入ベルト3a，3bに載せられる苗Paの紙筒部の位置に対応させる。
【００４５】
左右分割枠23は、一対の苗受入ベルト枠6a，6bの苗受入ベルト3a，3b搬送始端部下方に固定される。左右分割枠23には、側面視で上方開口の「コ」の字形状の一対の固定部23aと、一対の固定部23aの間を連結し垂直方向に薄い板である連結部23bを前後に二枚設ける。そして一対の固定部23aの上端が苗受入ベルト枠6a，6bに固定される。
【００４６】
左右分割アーム22a，22bは、正面視で略「し」の字形状で前後に二枚設けられ、その上端の前後の間に左右分割板21a，21bを固定し、その下端部は互いに交差して苗受入ベルト3a，3bの搬送始端の間を通って反対方向に向かい、左右分割枠23の連結部23bの両端にその上端が左右に自由に回転するよう取り付ける。つまり、右分割板21aの右分割アーム22aは左側の苗受入ベルト3bの搬送始端部下方に向かい、左分割板21bの左分割アーム22bは右側の苗受入ベルト3aの搬送始端部下方に向かっている。
【００４７】
左右分割アーム22a，22bの上端が苗受入ベルト3a，3bの回動方向に自由に回転し、その上端に固定した左右分割板21a，21bは左右分割アーム22a，22bの回転により開閉する。なお、左右分割アーム22a，22bを交差させたことにより、左右分割板21a，21bの頂点は閉じたときの方が開いたときより高くなる。
【００４８】
左右分割アーム22a，22bはその回転支点より下方で各々前後の二枚が連結され、左右分割アーム22a，22bの回転支点より下方の連結部の間に引張バネ24を掛け渡す。この引張バネ24により、右分割アーム22aの上端は左側に付勢され、左分割アーム22bの上端は右側に付勢され、その上端に固定した左右分割板21a，21bは閉じる方向に付勢される。
【００４９】
以上により、左右分割板21a，21bは上方から押されると左右に開き、放すと自然に閉じる。
【００５０】
つぎに、苗供給装置１を装備した移植機の作動をその効果とともに説明する。
【００５１】
第一実施例の作業者が一人の場合は、立垂状態の集合苗Ｐから分離具30により苗Paを列状に分離し、一箇所の苗受入部２としての一対の苗受入ベルト3a，3bの両方に渡って倒置して供給する。
【００５２】
供給に際しては、列状の苗を苗受入ベルト3a，3bの両方に均等に供給するのではなく、苗Paが不足がちな方に多い本数となるよう任意な位置に寄せて供給する。そして、苗受入ベルト3a，3bの上に苗Paを載せてから分離具30の円弧状針32を抜く。
【００５３】
このとき、列状の苗Paを一対の苗受入ベルト3a，3bの両方に渡る任意な位置に供給し、一対の苗受入ベルト3a，3bの間で供給された列状の苗Paの任意な位置で一対の苗受入ベルト 3a ， 3b により左右に分割し、一箇所の苗受入部２に苗Paを供給した後直ちに左右に分割するから、苗Paを交互に振分けることによる移植速度の制限や苗傷みを発生させること無く、一人の作業者あるいは一つの苗供給装置で二条を同時に植え付けできる。
【００５４】
また、一対の苗受入ベルト3a，3bの各々に供給される苗Paの本数を任意に変えることができるから、二つの苗植付装置10a，10bに苗Paの過不足なく供給できる。
【００５５】
また、列状の苗Paを分割するのは一対の苗受入ベルト3a，3bであり、供給された列状の苗Paの上に当板31を位置させ、当板31を苗Paごと一対の苗受入ベルト3a，3bに押し付けて苗Paを左右に分割し、分離具30などの当板31に苗Paを沿わせたまま苗受入ベルト3a，3bに押し付けると、苗Paは当板31と苗受入ベルト3a，3bに挟まれ、苗受入ベルト3a，3bの回動により回転するように分割されるから、従来と同じ単純な苗供給作業のみで左右に分割され、作業者に負担を強いない。
【００５６】
第一実施例の作業者が二人の場合は、立垂状態の集合苗Ｐから分離具30により苗Paを列状に分離し、二箇所の苗受入部２としての一対の苗受入ベルト3a，3bの各々に倒置して供給する。
【００５７】
このとき、一対の苗受入ベルト3a，3bの各々二箇所に苗Paを供給するから、各作業者が互いに無関係に別個に作業でき、作業者が増えると作業能率を向上させることができる。
【００５８】
第二実施例の作業者が一人の場合は、立垂状態の集合苗Ｐから分離具30により苗Paを列状に分離し、一箇所の苗受入部２としての一対の苗受入ベルト3a，3bの両方に渡って倒置して供給する。
【００５９】
供給に際しては、列状の苗を苗受入ベルト3a，3bの両方に均等に供給するのではなく、苗Paが不足がちな方に多い本数となるよう任意な位置に寄せて供給する。そして、分割板４の上に苗Paを載せてから分離具30の円弧状針32を抜く。
【００６０】
このとき、一対の苗受入ベルト3a，3bの各々に供給される苗Paの本数を任意に変えることができるから、二つの苗植付装置10a，10bに苗Paの過不足なく供給できる。
【００６１】
第二実施例の作業者が二人の場合は、立垂状態の集合苗Ｐから分離具30により苗Paを列状に分離し、分割板４を使用しないで、二箇所の苗受入部２としての一対の苗受入ベルト3a，3bの各々に倒置して供給する。
【００６２】
このとき、一対の苗受入ベルト3a，3bの各々二箇所に苗Paを供給するから、各作業者が互いに無関係に別個に作業でき、作業者が増えると作業能率を向上させることができる。
【００６３】
第三実施例の作業者が一人の場合は、立垂状態の集合苗Ｐから分離具30により苗Paを列状に分離し、一箇所の苗受入部２としての一対の苗受入ベルト3a，3bの両方に渡って倒置して供給する。
【００６４】
供給に際しては、列状の苗を苗受入ベルト3a，3bの両方に均等に供給するのではなく、苗Paが不足がちな方に多い本数となるよう任意な位置に寄せて供給する。そして、分割装置20の上に苗Paを載せてから分離具30の円弧状針32を抜く。
【００６５】
このとき、一対の苗受入ベルト3a，3bの各々に供給される苗Paの本数を任意に変えることができるから、二つの苗植付装置10a，10bに苗Paの過不足なく供給できる。
【００６６】
第三実施例の作業者が二人の場合は、立垂状態の集合苗Ｐから分離具30により苗Paを列状に分離し、分割装置20を使用しないで、二箇所の苗受入部２としての一対の苗受入ベルト3a，3bの各々に倒置して供給する。
【００６７】
このとき、一対の苗受入ベルト3a，3bの各々二箇所に苗Paを供給するから、各作業者が互いに無関係に別個に作業でき、作業者が増えると作業能率を向上させることができる。
【００６８】
つぎに、一対の苗受入ベルト3a，3bの送出端に達した苗Paは、個々の苗に分離されて下方に搬送され、続いて水平反対方向に搬送され、苗選別装置により苗Pa列から葉の生えていない不良苗を除去し、苗整列装置により間隔の不揃いになった苗Pa列を一旦密着整列させた後、所定間隔毎に離間させて一対の縦搬送ベルトにより苗Paを苗植付装置10a，10bに受け渡し、本圃に移植される。
【００６９】
以上の実施例では、苗Paとして紙筒集合育苗容器による紙筒集合苗Ｐのものを示したが、育苗培地そのものが育苗容器を形成している無機物繊維や高分子化合物によるものでも、育苗容器から取り出された苗でも、個々の苗相互が結合しているものであれば良い。
【００７０】
また、作業者が分離具30を使用して手で苗Paを供給する例を示したが、自動供給装置により機械的に供給するようにしても良い。
【００７１】
また、一対の搬送手段あるいは一対の苗受入ベルトとして幅広の苗受入ベルト3a，3bによる例を示したが、複数本のベルトとしても良く、チェーンコンベアやローラーコンベアのような搬送手段としても良い。
【００７２】
また、苗植付装置10a，10bとしてオープナー12と鎮圧輪13とゴム円盤14による例を示したが、ベルトや自由落下により植え付けるようにしても良い。
【００７３】
【発明の効果】
請求項１の発明によれば、一対の搬送手段の両方に渡る任意な位置に列状の苗を供給し、一対の搬送手段の間で供給された列状の苗の任意な位置で左右に分割し、一箇所の苗受入部に苗を供給した後直ちに左右に分割されるから、苗を交互に振分けることによる移植速度の制限や苗傷みを発生させること無く、一人の作業者あるいは一つの苗供給装置で二条を同時に植え付けできる。
【００７４】
また、一対の搬送手段の各々に供給する苗の本数を任意に変えることができるから、二つの苗植付装置に苗の過不足なく供給できる。
【００７５】
またさらに、一対の搬送手段の各々二箇所に苗を供給することもできるから、各作業者が互いに無関係に別個に作業でき、作業者が増えると作業能率を向上させることができる。
【００７６】
請求項２の発明によれば、列状の苗を一対の苗受入ベルトの両方に渡る任意な位置に供給し、一対の苗受入ベルトの間で供給された列状の苗の任意な位置で一対の苗受入ベルト 3a ， 3b 又は分割装置４， 20 により左右に分割し、一箇所の苗受入部に苗を供給した後直ちに左右に分割するから、苗を交互に振分けることによる移植速度の制限や苗傷みを発生させること無く、一人の作業者あるいは一つの苗供給装置で二条を同時に植え付けできる。
【００７７】
また、一対の苗受入ベルトの各々に供給される苗の本数を任意に変えることができるから、二つの苗植付装置に苗の過不足なく供給できる。
【００７８】
またさらに、一対の苗受入ベルトの各々二箇所に苗を供給することもできるから、各作業者が互いに無関係に別個に作業でき、作業者が増えると作業能率を向上させることができる。
【００７９】
請求項３の発明によれば、列状の苗を分割するのは一対の苗受入ベルトであり、供給された列状の苗の上に当板を位置させ、当板を苗ごと一対の苗受入ベルトに押し付けて苗を左右に分割し、分離具などの当板に苗を沿わせたまま苗受入ベルトに押し付けると、苗は当板と苗受入ベルトに挟まれ、苗受入ベルトの回動により回転するように分割されるから、従来と同じ単純な苗供給作業のみで左右に分割され、作業者に負担を強いない。
【図面の簡単な説明】
【図１】移植機の苗供給方法及び苗供給装置の一実施例を示す正面図である。
【図２】その平面図である。
【図３】図１の要部を示す部分拡大図である。
【図４】図２の要部を示す部分拡大図である。
【図５】図３の別な実施例を示す図である。
【図６】図５の平面図である。
【図７】図３のさらに別な実施例を示す図である。
【図８】図７の作動を示す図である。
【図９】図７の平面図である。
【図１０】分離具の側面図である。
【図１１】図１０の正面図である。
【図１２】集合苗の平面図である。
【符号の説明】
２苗受入部
3a，3b 搬送手段としての苗受入ベルト
10a，10b 苗植付装置
31 当板
Ｐ集合苗
Pa 苗[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a transplanter for supplying seedlings separated in a row from a collective seedling such as a paper tube seedling, transferring the seedlings to two seedling planting apparatuses, and transplanting the seedlings to a single seedling receiving section. And a seedling supply device for a transplanter that transfers the seedling to left and right planting apparatuses.
[0002]
[Prior art]
In a transplanting machine for planting a plurality of rows, a seedling supply device transfers two seedlings from one seedling supply device to reduce the size of the device, and two seedlings are transplanted from one seedling receiving device to reduce the number of workers. What is passed to the device is known.
[0003]
In order to reduce the size of the device, a seedling supply device for a transplanter that splits the seedling supplied to one seedling receiving portion into two parts and transfers it to two seedling planting devices is proposed as Japanese Utility Model No. 1-42978. Have been.
[0004]
The seedling supply device of this transplanter receives a row of seedlings extruded from a seedling box on a pair of transport belts rotating in opposite directions, and splits and supplies the seedlings to the left and right planting devices from the edges of these transport belts. It is configured as follows. Then, a leaf entanglement separation plate is provided opposite to the seedling mounting table so as to separate the leaf entanglement of the pot seedling mounted on the seedling mounting table as it is in the center of the seedling box, and the same number of pairs of transport belts We supply seedlings.
[0005]
A reciprocating seedling receiving arm is provided between the seedling mounting table and a pair of transport belts, and an extruding rod pushes a row of pot seedlings in a row of seedling boxes forward from the rear of the seedling mounting table, and the seedling receiving arm receives this. Place on top of the conveyor belt.
[0006]
Also, in order to reduce the number of workers, a method and an apparatus for supplying seedlings of a transplanter for distributing seedlings supplied to one seedling receiving apparatus and transferring them to two seedling transplanting apparatuses have been proposed as Japanese Patent Publication No. 5-44244. I have.
[0007]
The method and apparatus for supplying seedlings of this transplanting machine are such that a single belt as one seedling receiving apparatus receives a row of seedlings, separates and separates the individual seedlings, and removes the missing seedlings with a seedling sorting and aligning apparatus. After that, they are aligned closely, separated again, the individual seedlings are detected by the detecting means, the sorting unit is controlled, and the individual seedlings are alternately distributed to two seedling planting devices by the sorting unit and delivered. It is.
[0008]
The seedlings supplied to the seedling receiving device of the transplanting machine are seedlings which are separated from the set seedlings such as a paper tube seedling in a row in a row, and the separation in a row is shown in Japanese Utility Model Publication No. 3-27374. As shown in the figure, a separating device is used which includes a support plate and an arcuate needle supported by the support plate and rotating.
[0009]
[Problems to be solved by the invention]
In the prior art, the seedlings separated in a row from a collective seedling such as a paper tube seedling supplied to a seedling receiving device of Japanese Patent Publication No. 5-44244 are separated from each other by a paper tube portion. It is connected as possible and cannot be separated without applying the required force.
[0010]
For this reason, in the above-mentioned conventional example, after separating and separating the individual seedlings, the individual seedlings are alternately distributed and transferred to the two seedling planting apparatuses. Since the seedlings are turned left and right in response to each seedling, and the right and left turning speeds of the winged rollers are limited, the transplanting speed is naturally limited. In addition, since the seedlings are individually sorted to the left and right alternately, and the transport direction of the seedlings can be rapidly changed, seedling damage such as shaking off the soil in the paper cylinder occurs.
[0011]
Further, even if the number of workers increases, one belt as one seedling receiving device accepts a single row of seedlings, so that seedlings can be supplied only at one place and work efficiency cannot be improved. .
[0012]
Further, as shown in Japanese Utility Model Publication No. 1-42978, a method of supplying seedlings over both of a pair of conveyor belts rotating in opposite directions is also conceivable. Also, the seedlings are not always divided from the joint portion of the pair of conveyor belts, and it is also assumed that the seedlings are not divided at all, or are not divided at all. In addition, when removing seedlings and removing them with a seedling sorting and aligning apparatus and then aligning them closely, the same number of missing seedlings is not necessarily supplied to the left and right sides. Shortage will occur.
[0013]
Note that Japanese Utility Model Publication No. 1-42978 discloses a leaf-entangled separation plate located above a joint between a pair of conveyor belts. The leaf-entangled separation plate is provided so as to face the seedling mounting table. A seedling receiving arm is provided between the separation plate and the transport belt, and separates the entanglement of the leaf of the pot seedling mounted in the seedling box at the center of the seedling box before the pushing rod pushes the pot seedling forward. Therefore, it is not possible to divide the combined row seedlings.
[0014]
Accordingly, the present invention provides a method for controlling the transplanting speed and preventing seedling damage by immediately and separately transferring the seedlings to the two seedling planting devices immediately after receiving the seedlings in one seedling receiving portion. It is an object of the present invention to provide a seedling supply method and a seedling supply device for a transplanter that can supply seedlings to two places when the number of seedlings increases.
[0015]
[Means for Solving the Problems]
According to the method for supplying seedlings of the transplanting machine according to the first aspect of the present invention, seedlings Pa separated in rows are collected from a set of seedlings P such as a paper tube seedling, transferred to two seedling planting apparatuses 10a and 10b, and transplanted to the main field. In the transplanting machine, a pair of transporting means 3a, 3b for transporting two seedling transplanting devices 10a, 10b to one seedling receiving unit 2 is provided , and any one of the pair of transporting means 3a, 3b is provided . A row of seedlings Pa was supplied to the position, and the row of seedlings Pa supplied between the pair of transporting means 3a and 3b was divided right and left at an arbitrary position and supplied to one seedling receiving unit 2. The seedling Pa is divided into right and left parts and transferred to the two seedling planting apparatuses 10a and 10b.
[0016]
The seedling supply device of the transplanting machine according to the second aspect of the present invention supplies seedlings Pa separated in a row from a collective seedling P such as a paper tube seedling, transfers the seedlings Pa to the two seedling planting devices 10a and 10b, and transplants them to the main field. In the transplanting machine, a pair of seedling receiving belts 3a and 3b rotating in directions opposite to each other is provided at one seedling receiving portion 2, and the sending ends of the pair of seedling receiving belts 3a and 3b are connected to the respective seedling transplanting devices 10a and 10a. 10b, a row of seedlings Pa is supplied to an arbitrary position across both the pair of seedling receiving belts 3a, 3b, and the row of seedlings Pa supplied between the pair of seedling receiving belts 3a, 3b. any pair of seedling receiving belt 3a at the position, 3b or split device 4, 20 by dividing the left and right, two seedling planting apparatus 10a divides the seedlings Pa supplied to the seedling receiving portion 2 of the one position to the left and right , 10b.
[0017]
In the seedling supply device of the transplanter according to the third aspect of the present invention, the row of seedlings Pa is divided by a pair of seedling receiving belts 3a and 3b, and the plate 31 is placed on the supplied row of seedlings Pa. The seedling Pa is divided into right and left by pressing the plate 31 together with the seedling Pa on the pair of seedling receiving belts 3a and 3b.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, a row of seedlings Pa is supplied to an arbitrary position across both the pair of transporting means 3a and 3b, and the row of seedlings Pa supplied between the pair of transporting means 3a and 3b is supplied. Since the seedling Pa is supplied to one seedling receiving portion 2 immediately after being divided into right and left at an arbitrary position, the seedling is divided into right and left immediately.
[0019]
Further, the number of seedlings Pa supplied to each of the pair of transporting means 3a, 3b can be arbitrarily changed. Further, seedlings Pa can be supplied to two locations of each of the pair of transporting means 3a and 3b.
[0020]
According to the invention of claim 2, the row-shaped seedlings Pa are supplied to an arbitrary position across both the pair of seedling receiving belts 3a, 3b, and the row-shaped seedlings supplied between the pair of seedling receiving belts 3a, 3b. since split pair of seedling receiving belt 3a at any position of the Pa, to the left and right by 3b or division device 4, 20, immediately divided into right and left after supplying seedlings Pa seedlings receiving portion 2 of one place.
[0021]
In addition, the number of seedlings Pa supplied to each of the pair of seedling receiving belts 3a and 3b can be arbitrarily changed. Further, the seedlings Pa can be supplied to two locations of each of the pair of seedling receiving belts 3a and 3b.
[0022]
According to the invention of claim 3, it is the pair of seedling receiving belts 3a and 3b that divide the row-shaped seedlings Pa. Since the seedlings Pa are divided into right and left by pressing the seedlings Pa on the pair of seedling receiving belts 3a and 3b, the seedlings Pa are pressed against the seedling receiving belts 3a and 3b while the seedlings Pa are kept along the plate 31 such as the separator 30. Pa is sandwiched between the contact plate 31 and the seedling receiving belts 3a, 3b, and is divided so as to be rotated by the rotation of the seedling receiving belts 3a, 3b.
[0023]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0024]
As the collected seedling P, a paper tube seedling Pa in which the root of the paper tube collected seedling growing container is covered with soil is shown. This container group for growing seedlings is a container in which a number of hexagonal column-shaped paper tubes which are open when opened are glued in order. When the seedlings are sown by cultivating and cultivating the seedlings in the paper cylinders, the seedlings grow to become the paper cylinder aggregate seedlings P, and at the time of transplanting, are connected to the individual seedlings Pa so as to be separable and maintain an appropriate connection strength.
[0025]
Although the individual seedlings Pa separated by the paper tube collecting seedling growing container have the soil wrapped in the paper cylinder, the impact may cause the soil to loosen and cause root pain.
[0026]
The separating device 30 for separating the seedlings P from the collective seedlings P into a row of rows of seedlings Pa includes a contact plate 31 extending along the side surface of the collective seedlings P, and a large number of arc-shaped needles supported by the back surface of the contact plate 31 and rotating. 32, a handle 33 at the center of the back surface of the plate 31, and a handle 34 for rotating the arc needle 32.
[0027]
The operator holds the handle 33 and the handle 34, makes the contact plate 31 along the side surface of the collecting seedling P, pierces the arc-shaped needle 32 from the upper surface of the paper cylinder of the collecting seedling P, and tilts the separating tools 30 downward and forward in a row. The whole seedling Pa is warped and separated. In the seedlings Pa separated in a row in a row, the individual seedlings are connected to each other at the hexagonal sides of the paper cylinder.
[0028]
The separated seedling Pa is placed on the seedling receiving portion of the seedling supply device 1 together with the separating tool 30 by inverting the seedling Pa, and then the arc-shaped needle 32 of the separating tool 30 is pulled out. At this time, by the recoil of pulling out the arc-shaped needle 32 with the handle 34, the operator naturally presses the handle 33 of the plate 31 against the seedling receiving portion without being conscious.
[0029]
Next, a seedling supply device 1 that supplies the seedlings Pa separated in a row, and the seedling supply device 1 transfers the seedlings to two seedling planting devices 10a and 10b, and the seedling planting devices 10a and 10b transplant to the main field. The following describes a two-row transplanter for transplanting cultivated rice into this field at once.
[0030]
FIG. 1 shows a transplanter in which the description of a machine frame is omitted. The transplanter is attached to a tractor, is towed, and moves forward in the drawing. The upper seedling supply device 1 is provided with a pair of left and right seedling supply device frames 5a and 5b, and the seedling supply device frames 5a and 5b are fixed to the machine frame.
[0031]
A pair of right and left seedling planting devices 10a and 10b are provided below the seedling supply device frames 5a and 5b, and the two seedling planting devices 10a and 10b are provided with long planting device frames 11a and 11b in the front-rear direction.
[0032]
The front ends of the planting device frames 11a and 11b are engaged with long pulling rods on the left and right sides of the machine frame, and the rear end side freely moves up and down due to unevenness of the field. An opener 12 is provided below the planting device frames 11a and 11b, a pair of compression rings 13 are provided on the left and right of the planting device frames 11a and 11b, and a pair of rubber disks 14 are provided in the planting device frames 11a and 11b. The seedling Pa is transplanted to the main field by the opener 12, the compression ring 13, and the rubber disk 14. The crushing wheel 13 is in contact with the surface of the field and is rotated by the advance of the machine frame to supply power to the apparatus.
[0033]
A pair of seedling receiving belts 3a, 3b as a pair of transport means for transporting from the seedling supply device frames 5a, 5b to one seedling receiving unit 2 toward the two seedling planting devices 10a, 10b.
[0034]
A pair of right and left seedling receiving belt frames 6a and 6b are provided from the seedling supply device frames 5a and 5b, and the seedling receiving belts 3a and 3b are stretched between pulleys provided at both ends of the seedling receiving belt frames 6a and 6b. The pair of seedling receiving belts 3a, 3b are formed in a straight line with their upper surfaces horizontal and in the opposite direction, that is, their upper surfaces are turned outward, and the length of each seedling receiving belt 3a, 3b is It is longer than the width, and the sending ends of the pair of seedling receiving belts 3a, 3b are connected to each seedling planting device 10a, 10b via a belt or the like.
[0035]
The distance between the transport start ends of the seedling receiving belts 3a and 3b should be as narrow as possible, and if the dividing devices 4 and 20 are to be used, they should be as narrow as possible to accommodate the dividing devices 4 and 20. The width of the seedling receiving belts 3a and 3b should be The width should be wide enough to accommodate the entire tube and leaf.
[0036]
Gauge plates 7a, 7b are provided on the front side of the seedling receiving belts 3a, 3b in the machine traveling direction, that is, on the root side of the seedling Pa. The gauge plates 7a and 7b are fixed to the seedling receiving belt frames 6a and 6b, and the gauge plates 7a and 7b contact the roots of the seedlings Pa when supplying the seedlings Pa separated in rows to the seedling receiving belts 3a and 3b. The seedlings Pa are placed at predetermined positions on the seedling receiving belts 3a and 3b.
[0037]
First, as a first embodiment, a description will be given of a configuration shown in FIGS. 5 and 6 which is divided only by a pair of seedling receiving belts 3a and 3b as a pair of conveying means and does not use another dividing device 4 or 20.
[0038]
The row of seedlings Pa is divided by a pair of seedling receiving belts 3a and 3b, and the dividing devices 4 and 20 for dividing the seedlings into left and right are not provided between the pair of seedling receiving belts 3a and 3b. The plate 31 is positioned on the supplied row of seedlings Pa, and the plate 31 is pressed together with the seedlings Pa against the pair of seedling receiving belts 3a, 3b to divide the seedlings Pa left and right.
[0039]
Next, as a second embodiment, as shown in FIGS. 3 and 4, a dividing plate 4 as a dividing device which is located between a pair of seedling receiving belts 3a and 3b as a pair of conveying means and divides a seedling Pa into right and left. explain.
[0040]
The dividing plate 4 has a substantially plate shape that is long in the machine traveling direction and thin in the vertical direction, and both ends thereof are fixed between a pair of left and right seedling receiving belt frames 6a and 6b. The dividing plate 4 is made to protrude above the upper surfaces of the seedling receiving belts 3a and 3b, and the projecting height is slightly larger than the diameter of the paper cylinder of the seedling Pa.
[0041]
The length of the portion of the split plate 4 protruding above the upper surfaces of the seedling receiving belts 3a, 3b is substantially the same as the width of the seedling receiving belts 3a, 3b. The upper end of the dividing plate 4 has a thin plate shape, the middle portion has a substantially triangular shape which swells so that the seedling Pa does not stay between the dividing plate 4 and the start of transport of the seedling receiving belts 3a and 3b, and the lower end has a seedling receiving position. The belts 3a and 3b are thinned so as not to contact the transport start ends.
[0042]
Next, as a third embodiment, a dividing device 20 shown in FIGS. 7 to 9 which is located between a pair of seedling receiving belts 3a and 3b as a pair of conveying means and divides a seedling Pa into right and left. explain.
[0043]
As the dividing device 20, a pair of left and right divided plates 21a, 21b protruding above the upper surface of the seedling receiving belts 3a, 3b, a pair of left and right divided arms 22a, 22b for attaching the left and right divided plates 21a, 21b, and a seedling receiving belt frame A left / right divided frame 23 fixed to 6a, 6b and to which the left / right divided arms 22a, 22b are attached, and a spring 24 mounted between the pair of left / right divided arms 22a, 22b to bias the pair of left / right divided plates 21a, 21b in a closing direction. Is provided.
[0044]
The left and right split plates 21a and 21b are closed when viewed from the front, and have a triangular mountain shape with the center protruding upward, with the apex being approximately half the diameter of the paper cylinder diameter of the seedling Pa from the upper surface of the seedling receiving belts 3a and 3b. Protrude. The left and right split plates 21a and 21b are long in the machine traveling direction, and have a length substantially equal to the length of the paper cylinder of the seedling Pa, and correspond to the position of the paper cylinder of the seedling Pa placed on the seedling receiving belts 3a and 3b. .
[0045]
The left and right division frames 23 are fixed below the seedling receiving belts 3a and 3b transport start ends of the pair of seedling receiving belt frames 6a and 6b. In the left and right divided frame 23, a pair of fixing portions 23a of a U-shape having an upper opening in a side view and a connecting portion 23b which is a vertically thin plate connecting between the pair of fixing portions 23a is arranged in front and rear. Two pieces are provided. Then, the upper ends of the pair of fixing portions 23a are fixed to the seedling receiving belt frames 6a, 6b.
[0046]
The left and right divided arms 22a and 22b are provided in front and rear in a substantially “L” shape when viewed from the front, and fix the left and right divided plates 21a and 21b between the upper and lower ends thereof, and the lower ends thereof cross each other. It passes through the space between the transport start ends of the seedling receiving belts 3a, 3b and faces in the opposite direction, and is attached to both ends of the connecting portion 23b of the left and right divided frame 23 so that the upper end thereof can freely rotate left and right. That is, the right split arm 22a of the right split plate 21a faces downward at the transport start end of the left seedling receiving belt 3b, and the left split arm 22b of the left split plate 21b faces downward at the transport start end of the right seedling receiving belt 3a. I have.
[0047]
The upper ends of the left and right split arms 22a and 22b freely rotate in the rotation direction of the seedling receiving belts 3a and 3b, and the left and right split plates 21a and 21b fixed to the upper ends are opened and closed by the rotation of the left and right split arms 22a and 22b. Since the left and right divided arms 22a and 22b intersect, the vertices of the left and right divided plates 21a and 21b are higher when closed than when opened.
[0048]
The left and right divided arms 22a and 22b are connected to each other at the front and rear below the rotation fulcrum, and a tension spring 24 is bridged between the connection parts below the rotation fulcrum of the left and right divided arms 22a and 22b. By the tension spring 24, the upper end of the right split arm 22a is urged to the left, the upper end of the left split arm 22b is urged to the right, and the left and right split plates 21a and 21b fixed to the upper end are urged in the closing direction. You.
[0049]
As described above, the left and right split plates 21a and 21b open left and right when pressed from above, and close naturally when released.
[0050]
Next, the operation of the transplanter equipped with the seedling supply device 1 will be described together with its effects.
[0051]
In the case of one worker in the first embodiment, the seedlings Pa are separated in a row from the set of seedlings P in the standing state by the separating tool 30, and a pair of seedling receiving belts 3a, Invert and supply across both 3b.
[0052]
At the time of supply, the row-shaped seedlings are not evenly supplied to both the seedling receiving belts 3a and 3b, but are supplied at an arbitrary position so that the number of seedlings Pa tends to be large in a direction where shortage tends to occur. Then, after placing the seedling Pa on the seedling receiving belts 3a and 3b, the arc-shaped needle 32 of the separating tool 30 is pulled out.
[0053]
At this time, the row-shaped seedlings Pa are supplied to any position across both the pair of seedling receiving belts 3a and 3b, and any of the row-shaped seedlings Pa supplied between the pair of seedling receiving belts 3a and 3b is At the position, the seedlings are divided into right and left by a pair of seedling receiving belts 3a and 3b , and immediately after the seedling Pa is supplied to one seedling receiving part 2, the transplanting speed is restricted by alternately distributing the seedlings Pa. Two workers can be planted at the same time by one worker or one seedling supply device without causing damage to seedlings.
[0054]
In addition, since the number of seedlings Pa supplied to each of the pair of seedling receiving belts 3a and 3b can be arbitrarily changed, the seedlings Pa can be supplied to the two seedling planting apparatuses 10a and 10b without excess or shortage.
[0055]
The row of seedlings Pa is divided by a pair of seedling receiving belts 3a and 3b. The plate 31 is positioned on the supplied row of seedlings Pa. The seedlings Pa are divided into right and left by pressing them against the seedling receiving belts 3a and 3b. When the seedlings Pa are pushed along the seedling receiving belts 3a and 3b while keeping the seedlings Pa along the plate 31 such as the separating tool 30, the seedlings Pa and the plate 31 It is sandwiched between the seedling receiving belts 3a, 3b and is divided so as to be rotated by the rotation of the seedling receiving belts 3a, 3b. Absent.
[0056]
In the case where the number of workers in the first embodiment is two, the seedlings Pa are separated from the standing seedlings P in a row by the separating tool 30, and a pair of seedling receiving belts 3a as two seedling receiving portions 2 are used. , 3b.
[0057]
At this time, since the seedlings Pa are supplied to two places of each of the pair of seedling receiving belts 3a and 3b, each worker can work independently irrespective of each other, and when the number of workers increases, the work efficiency can be improved.
[0058]
In the case of one worker in the second embodiment, the seedlings Pa are separated from the standing seedlings P in a row by the separating tool 30, and a pair of seedling receiving belts 3a, Invert and supply across both 3b.
[0059]
At the time of supply, the row-shaped seedlings are not evenly supplied to both the seedling receiving belts 3a and 3b, but are supplied at an arbitrary position so that the number of seedlings Pa tends to be large in a direction where shortage tends to occur. Then, after placing the seedling Pa on the dividing plate 4, the arc-shaped needle 32 of the separating tool 30 is pulled out.
[0060]
At this time, since the number of seedlings Pa supplied to each of the pair of seedling receiving belts 3a, 3b can be arbitrarily changed, the seedlings Pa can be supplied to the two seedling planting apparatuses 10a, 10b without excess or shortage.
[0061]
When the number of workers in the second embodiment is two, the seedlings Pa are separated into rows by the separating tool 30 from the set seedlings P in the upright state, and the two seedling receiving portions 2 are used without using the dividing plate 4. It is inverted and supplied to each of a pair of seedling receiving belts 3a and 3b.
[0062]
At this time, since the seedlings Pa are supplied to two places of each of the pair of seedling receiving belts 3a and 3b, each worker can work independently irrespective of each other, and when the number of workers increases, the work efficiency can be improved.
[0063]
In the case of one worker in the third embodiment, the seedlings Pa are separated into rows by the separating tool 30 from the set seedlings P in the upright state, and a pair of seedling receiving belts 3a as one seedling receiving part 2 are used. Invert and supply across both 3b.
[0064]
At the time of supply, the row-shaped seedlings are not evenly supplied to both the seedling receiving belts 3a and 3b, but are supplied at an arbitrary position so that the number of seedlings Pa tends to be large in a direction where shortage tends to occur. Then, after placing the seedling Pa on the dividing device 20, the arc-shaped needle 32 of the separating tool 30 is pulled out.
[0065]
At this time, since the number of seedlings Pa supplied to each of the pair of seedling receiving belts 3a, 3b can be arbitrarily changed, the seedlings Pa can be supplied to the two seedling planting apparatuses 10a, 10b without excess or shortage.
[0066]
In the case where the number of workers in the third embodiment is two, the seedlings Pa are separated into rows from the set of seedlings P in the standing state by the separating tool 30, and the two seedling receiving sections 2 are used without using the dividing device 20. It is inverted and supplied to each of a pair of seedling receiving belts 3a and 3b.
[0067]
At this time, since the seedlings Pa are supplied to two places of each of the pair of seedling receiving belts 3a and 3b, each worker can work independently irrespective of each other, and when the number of workers increases, the work efficiency can be improved.
[0068]
Next, the seedlings Pa that have reached the sending ends of the pair of seedling receiving belts 3a and 3b are separated into individual seedlings and conveyed downward, and then conveyed horizontally in the opposite direction. The defective seedlings with no leaves are removed, and the seedling Pa rows with irregular intervals are once closely aligned by the seedling aligning device, then separated at predetermined intervals, and the seedlings Pa are seeded with a pair of vertical transport belts. It is delivered to the attachment devices 10a and 10b and transplanted to the main field.
[0069]
In the above embodiment, the seedling Pa is the one in which the seedling growing seedlings P are made of the paper cylinder assembling seedling containers. The seedlings extracted from the seedlings may be any as long as the individual seedlings are connected to each other.
[0070]
Further, although the example in which the worker supplies the seedlings Pa by hand using the separator 30 has been described, the supply may be performed mechanically by an automatic supply device.
[0071]
Further, although an example has been shown in which the pair of transporting means or the pair of seedling receiving belts are the wide seedling receiving belts 3a and 3b, a plurality of belts may be used, or a transporting means such as a chain conveyor or a roller conveyor may be used.
[0072]
In addition, although an example in which the opener 12, the compression ring 13, and the rubber disk 14 are used as the seedling planting devices 10a and 10b has been described, the planting may be performed by a belt or free fall.
[0073]
【The invention's effect】
According to the invention of claim 1, a row of seedlings is supplied to an arbitrary position across both of the pair of transporting means, and the row of seedlings supplied between the pair of transporting means is left and right at an arbitrary position. The seedlings are divided into two parts immediately after the seedlings are supplied to one seedling receiving section.Therefore, the transfer of seedlings alternately does not limit the transplanting speed or cause damage to the seedlings. Two seedlings can be planted simultaneously with one seedling supply device.
[0074]
Further, since the number of seedlings to be supplied to each of the pair of transport means can be arbitrarily changed, the seedlings can be supplied to the two seedling planting apparatuses without excess or deficiency.
[0075]
Further, since seedlings can be supplied to two places of each of the pair of transport means, each worker can work independently irrespective of each other, and work efficiency can be improved as the number of workers increases.
[0076]
According to the invention of claim 2, the row-shaped seedlings are supplied to any position across both the pair of seedling receiving belts, and the row-type seedlings are supplied between the pair of seedling receiving belts at any position. a pair of seedling receiving belts 3a, is divided into right and left by 3b or division device 4, 20, from split immediately right after supplying seedlings seedlings receiving portion of one location, implantation rate due to distribute seedlings alternately Two workers can be planted at the same time by one worker or one seedling supply device without restriction or damage to seedlings.
[0077]
Further, since the number of seedlings supplied to each of the pair of seedling receiving belts can be arbitrarily changed, the seedlings can be supplied to the two seedling planting apparatuses without excess or shortage.
[0078]
Furthermore, since seedlings can be supplied to each of two places of the pair of seedling receiving belts, each worker can work independently irrespective of each other, and work efficiency can be improved as the number of workers increases.
[0079]
According to the third aspect of the present invention, it is the pair of seedling receiving belts that divide the row-shaped seedlings, the plate is positioned on the supplied row-shaped seedlings, and the plate is paired with the seedlings. The seedlings are divided into right and left by pressing against the receiving belt, and then pressed against the seedling receiving belt while the seedlings are in line with the separation plate, etc., and the seedlings are caught between the plate and the seedling receiving belt, and the seedling receiving belt rotates. Therefore, the plant is divided into right and left only by the same simple seedling supply operation as in the related art, so that no burden is imposed on the operator.
[Brief description of the drawings]
FIG. 1 is a front view showing one embodiment of a seedling supply method and a seedling supply device of a transplanter.
FIG. 2 is a plan view thereof.
FIG. 3 is a partially enlarged view showing a main part of FIG. 1;
FIG. 4 is a partially enlarged view showing a main part of FIG. 2;
FIG. 5 is a diagram showing another embodiment of FIG. 3;
FIG. 6 is a plan view of FIG. 5;
FIG. 7 is a view showing still another embodiment of FIG. 3;
FIG. 8 is a diagram showing the operation of FIG. 7;
FIG. 9 is a plan view of FIG. 7;
FIG. 10 is a side view of the separating device.
FIG. 11 is a front view of FIG. 10;
FIG. 12 is a plan view of a collective seedling.
[Explanation of symbols]
2 Seedling receiving department
3a, 3b Seedling receiving belt as transport means
10a, 10b seedling planting equipment
31 This plate P Collective seedling
Pa seedling

Claims

In a transplanter that supplies seedlings separated in a row from collective seedlings such as paper tube seedlings, passes them to two seedling planting devices, and transplants them to this field, the seedlings are directed to two seedling planting devices at one seedling receiving part A pair of transporting means for transporting the seedlings, supplying a row of seedlings to any position across both of the pair of transporting means, and at any position of the row of seedlings supplied between the pair of transporting means. A method of supplying seedlings for a transplanter, which divides the seedlings supplied to one seedling receiving part into right and left parts and transfers them to two seedling planting apparatuses.

In a transplanter that supplies seedlings separated in a row from a collective seedling such as a paper tube seedling, transfers the seedlings to two seedling planting apparatuses, and transplants the seedlings in the field, a pair of seedlings that rotate in opposite directions to one seedling receiving portion is provided. A pair of seedling receiving belts, the sending ends of the pair of seedling receiving belts are connected to each seedling planting device, and a row of seedlings is supplied to an arbitrary position across both of the pair of seedling receiving belts. The row of seedlings supplied between the seedling receiving belts is divided into left and right parts at any position by a pair of seedling receiving belts or a dividing device, and the seedlings supplied to one seedling receiving part are divided into two parts. Seedling supply device of the transplanter to be transferred to the seedling planting device.

It is a pair of seedling receiving belts that divide the row-shaped seedlings, place the plate on the supplied row of seedlings, press the plate together with the seedlings on the pair of seedling receiving belts, and move the seedlings to the left and right. 3. The seedling supply device for a transplanter according to claim 2, wherein the seedling is divided.