JP3797339B2

JP3797339B2 - Seedling planting machine

Info

Publication number: JP3797339B2
Application number: JP2003054257A
Authority: JP
Inventors: 哲加藤; 正文佐伯; 秀夫井関; 寿美福島
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2003-02-28
Filing date: 2003-02-28
Publication date: 2006-07-19
Anticipated expiration: 2021-07-19
Also published as: JP2003237625A

Description

【０００１】
【発明の属する技術分野】
この発明は、苗載台に載置された苗を植付ける複数条植の苗植機の技術分野に属する。
【０００２】
【従来の技術】
従来、ポット苗を移植する苗植機において、操縦席を備える車体にリンクを介して苗植機体を昇降可能に設け、左右に複数個配列された苗載台を相互間に間隔部が複数形成されるよう苗植機体で支持して設け、該苗載台に複数のポット苗を収容するポット苗ケ−スを載置し、苗載台上で繰出装置によりポット苗ケ−スを苗分離装置の苗分離位置へ搬送し、苗分離装置でポット苗ケ−スから分離したポット苗を植付ける構成の複数条植の苗植機が知られている。
【０００３】
【発明が解決しようとする課題】
この苗植機において、前記間隔部を有効に利用して機体のコンパクト化を図ることを本発明の課題とする。
【０００４】
【課題を解決するための手段】
この発明は、上記の課題を解決するために、次の技術的手段を講じた。
すなわち、操縦席５２を備える車体７の後側に苗植機体９を昇降可能に設け、前記苗植機体９側には、苗植機体９で支持されてポット１７を縦横に一定間隔で配設したポット苗ケース１を載置するための苗載台１１と、苗載台１１から供給されるポット苗ケース１を案内する側面視Ｕ字状の苗ケースガイド２と、該苗ケースガイド２の案内通路３４始端部でポット苗ケース１の繰出穴１８に係合する繰出爪２１によりポット苗ケース１を１ピッチ毎に繰出移送する繰出装置１３と、ポット苗ケース１に横方向に沿って配設されたポット１７の配設数と同数で同じ間隔に設けられた苗押出子３によって横並びの各ポット苗４を押し出すポット苗分離装置１４と、該ポット苗分離装置１４で押し出されたポット苗４を横並びの苗ホルダ４２で保持して下動し櫛状のスクレーパ４３によって苗ホルダ４２から左右一対の苗受ベルト５の上面に横並びの各ポット苗４を載せ替える載替装置２０と、前記左右一対の苗受ベルト５によりその左右両側方に移送されるポット苗４を植付ける苗植付装置１５とを設け、前記苗載台１１を相互間に間隔部Ａが形成されるよう左右に複数個配列した構成の複数条植の苗植機において、各々の苗載台１１に対応して施肥装置の施肥ホッパ−５５を前記苗ケースガイド２の内側位置に各々設け、平面視で前記施肥ホッパ−５５への肥料供給口７５を前記間隔部Ａに突出させて設け、車体７の後端部から支持されて平面視で苗載台１１と重複せず前記間隔部Ａのみに位置するステップ部５１を設けた複数条植の苗植機とした。
【０００５】
【作用、及び発明の効果】
この苗植機は、機体を走行させながら、苗載台１１から供給されるポット苗ケース１を案内する側面視Ｕ字状の苗ケースガイド２の案内通路３４始端部で、ポット苗ケース１の繰出穴１８に係合する繰出爪２１によりポット苗ケース１を１ピッチ毎に繰出移送し、ポット苗分離装置１４の苗押出子３によって横並びの各ポット苗４を押し出す。ポット苗分離装置１４で押し出された横並びの各ポット苗４は、載替装置２０により左右一対の苗受ベルト５の上面に載せ替えられ、前記左右一対の苗受ベルト５によりその左右両側方に移送されて苗植付装置１５により複数条に植付けられる。そして、各々の苗載台１１に対応して施肥装置の施肥ホッパ−５５を前記苗ケースガイド２の内側位置に各々設けているので、機体の前後長を縮小させることができ、機体のコンパクト化を図れる。更に、平面視で前記施肥ホッパ−５５への肥料供給口７５を前記間隔部Ａに突出させて設け、車体７の後端部から支持されて平面視で苗載台１１と重複せず前記間隔部Ａのみに位置するステップ部５１を設けているので、前記肥料供給口７５への肥料供給を前記間隔部Ａから苗載台１１が邪魔にならずに容易に行えると共に、苗植機体９を昇降させても苗載台１１がステップ部５１に干渉することが無いため、ステップ部５１を所望の後側位置まで延設することができ、ひいては作業者が車体７側からステップ部５１を介して肥料供給口７５へ苗載台１１が邪魔にならずに容易に行える。
【０００６】
【実施例】
苗植機は、トラクタ車体７の後側に平行リンク８によって昇降自在に連結するもので、苗植機体９の下側には、前端が上下揺動自在のフロ−ト１０を有し、上側には、ポット苗ケ−ス１を載せる苗載台１１、この苗載台１１から供給されるポット苗載台ケ−ス１を繰出装置１３によって繰出しながら案内する苗ケ−スガイド２、このポット苗ケ−ス１から各ポット苗４を苗押出子３によって押出分離するポット苗分離装置１４、この押出分離されたポット苗４を受けて苗植付装置１５へ移送供給する苗受ベルト５、これら苗押出子３によって押出分離されたポット苗を受けて苗受ベルト５上面に載せ替える載替装置２０、及び、このようにポット苗４を押出分離させた後の空ケ−スを収容する空ケ−ス収容棚１６等を有し、後部には、該苗植付装置１５を配設している。
【０００７】
ポット苗ケ−ス１は、合成樹脂製で丸鉢形のポット１７を縦横に一定間隔にして配設形成したもので、可撓性を有する。このポット苗ケ−ス１の左右両側縁に沿っては繰出用の穴１８を一定間隔で形成している。ポット苗４は、このようなポット苗ケ−ス１の各ポット１７に床材を充填して播種育苗したもので、各ポット１７で育苗された苗株を単位として移植するものである。この各ポット１７の底部には、ポット苗分離装置１４における苗押出子３の挿通しうる押出穴１９が形成されている。
【０００８】
前記苗ケ−スガイド２は、側面視Ｕ字状に形成されて、板状のポット苗ケ−ス１の左右両側縁部を、この苗ケ−スガイド２の左右両側部に形成された平面視コ字状断面の案内通路３４に摺動案内させて、該Ｕ字状ガイド２の後側部から前側部へ迂回するように移送案内し、この前側部で前記苗押出子３を苗押出作用させ、後側部で空ケ−スとして空ケ−ス収容棚１６へ案内させる。
【０００９】
この苗ケ−スガイド２の案内通路３４始端部に設けられる繰出装置１３は、ポット苗ケ−ス１の繰出穴１８に係合してこのポット苗ケ−ス１を１ピッチ毎に繰出移送する繰出爪２１、この１ピッチ毎に繰出穴１８に係合してポット苗ケ−ス１の繰出位置を係止する係止爪２２、該繰出爪２１によって繰出されるポット苗ケ−ス１に対して間隔をおいて供給される後続のポット苗ケ−ス１の下端縁に係合して、この後続のポット苗ケ−ス１の供給を一定位置に係止しておく遮断爪２３、及び、該繰出爪２１によって繰出されるポット苗ケ−ス１に摩擦ブレ−キ力を効かせるブレ−キ２４等からなる。
【００１０】
苗植機体９を構成する伝動ケ−ス内部の伝動機構を経て連動される回動ア−ム２５、及びこの回動ア−ム２５に枢着２７される該繰出爪２１の往復揺動によって、ポット苗ケ−ス１が１ピッチ毎繰出される。この繰出爪２１の繰出作用時は、該回動ア−ム２５の揺動によって係止爪２２が繰出穴１８から外されるために、該ポット苗ケ−ス１の繰出が可能な状態におかれる。
【００１１】
前記遮断爪２３は、苗ケ−スガイド２に対して繰出方向へ移動自在のスライダ−３１に、横方向の軸３２回りに回動自在にして設けられ、ばね３３によってこの遮断爪２３がポット苗ケ−ス１の繰出穴１８を有する側端縁部の通る案内通路３４に位置するように弾発される。この遮断爪２３の下端部には、該軸３２と直交する方向の軸３５の回りに回動自在のカムレバ−３６があって、ばね３７に抗して苗ケ−スガイド２の横外側方へ回動可能で、このばね３７の弾発力で垂下方向にあるときは、カムレバ−３６の先端部は、前記苗押出子３と一体で、同じ横並び位置にあり、かつ苗ケ−スガイド２の外側に位置するカム突子３８に対向される。
【００１２】
前記スライダ−３１は、苗ケ−スガイド２の案内ピン３９に長孔４０を嵌合させて、一定長さ案内通路３４に沿って移動自在で、ばね係数の大きい緩衝ばね６３と、ばね係数の小さいばね６４とで、吊下げられて、このばね６４に抗してスライダ−３１が一定長さ下動された位置で緩衝ばね６３にも抗して下動できる構成としている。
【００１３】
ポット苗ケ−ス１が前記苗載台１１から苗ケ−スガイド２の案内通路３４に案内されて供給されたとき既に供給されているポット苗ケ−ス１の後端部との間に間隔があると、この後続のポット苗ケ−ス１の下端縁が前記遮断爪２３に衝突する。この衝撃力はばね６４及び緩衝ばね６３によって緩和される。このとき、繰出爪２３の下動量が小さい場合でも、弱いばね６４に抗して下動されて、下端のカムレバ−３６をカム突子３８の作用圏内に位置させることができる。既に苗押出子３が作用中であって、即ち、カム突子３８が突出されているときは、該カムレバ−３６の先端部がこのカム突子３８に接してばね３７に抗して外側へ回動されるため、このカムレバ−３６乃至遮断爪２３の下動を邪魔することはない。しかも、このカムレバ−３６の下動位置にカム突子３８が突き当ると、遮断爪２３がばね３３に抗して軸３２回りに回動されるために、遮断側２３が案内通路３４からが引込んで、ポット苗ケ−ス１の係止を外して、下方へ移動させて、繰出爪２１の作用圏に供給させる。このとき、遮断爪２３にはポット苗ケ−ス１の係止荷重がなくなるから、この遮断爪２３はばね６４によって元位置へ引き戻される。なお、６５はブレ−キ２４用のばね、６６は係止爪２２を軸７１回りに案内通路３４側へ突出するように張圧するばねである。
【００１４】
前記ポット苗分離装置１４の苗押出子３は、ポット苗ケ−ス１に横方向に沿って配設されたポット１７の配設数と同数で、同間隔に設けられ、ピニオン、ラック等の伝動機構によって、前記繰出爪２１による繰出休止時に１往復出没作動されて、対向する位置の横並びのポット１７からポット苗４を押出すものである。
【００１５】
前記載替装置２０は、この苗押出子３によって押出されるポット苗４は、平行リンク機構４１によって上下動される横並びの苗ホルダ４２に保持させて、この平行リンク機構４１の下動によって苗ホルダ４２を下動させ、苗受ベルト５の上面に接近させた位置で櫛状のスクレパ−４３の揺動によって、この苗ホルダ４２から苗受ベルト５上面に各ポット苗４を載せ替える。
【００１６】
前記苗受ベルト５は、回転周面に該各苗ホルダ４２の横並びと同間隔に仕切突子４４を配設し、該ポット苗４を各仕切突子４４間の間隔部毎に１個宛て載置させる。この苗受ベルト５は、一枚のポット苗ケ−ス１に対して中央部から左右両側方に向けて回転するように左右一対の構成として、各苗受ベルト５の回転端側に各々苗植付装置１５が設けられている。この苗植付装置１５はロ−タリ−形態の苗植付爪を有し、苗受ベルト５によって送出されるポット苗４を一株毎前記フロ−ト１０で均平された土壌面に植付ける。
【００１７】
４７は車体７側からの入力軸、４８は前記クランクア−ム２５をリンク機構等を介して連動する駆動ア−ム、４９は前記苗押出子３をラック、ピニオン機構等を介して連動する駆動カム、７２は前記載替装置２０の平行リンク４１をリンク機構等を介して連動する駆動ア−ムである。
【００１８】
前記苗ケ−スガイド２の下部に沿って設けられるカバ−６は、板状、又は横桟状に形成されて、Ｕ字状の苗ケ−スガイド２の該苗受ベルト５側下部で、左右の苗ケ−スガイド２間の全幅に亘って覆うように構成される。従って、苗押出子３によってポット１７から押出されて完全に苗ホルダ４２に保持されないで、このポット苗ケ−ス１の繰出移送に付着して連れ移送される不良のポット苗があっても、この不良ポット苗をカバ−６上面に案内させて、前記苗受ベルト５側へ垂れ下げたり、落下させないようにする。
【００１９】
このカバ−６の下端は該苗受ベルト５の後側部において開放されて、この開放部までポット苗ケ−ス１と共に連れ出された不良ポット苗は、ポット１７から外れて落下できる。
【００２０】
苗押出子３によってポット苗４の押出されたポット苗ケ−ス１は空ケ−スとして、苗ケ−スガイド２の後側部を上昇されて、空ケ−ス収容棚１６に積載される。
【００２１】
前記繰出爪２１は、苗ケ−スガイド２にポット苗ケ−ス１がない状態で、案内通路３４へ深く嵌合させて、この繰出爪２１の頭部をストッパ−４５としてポット苗ケ−ス１の移動圏内に位置させて、このとき供給されるポット苗ケ−ス１の下端縁をこのストッパ−４５で係止する。
【００２２】
最初に供給されたポット苗ケ−ス１を、一旦繰出爪２１のストッパ−４５部で係止するが、この繰出爪２１の揺動によって、ポット苗ケ−ス１の繰出穴１８に係合させて、繰出作用を行わせる。このときは、繰出爪２１はポット苗ケ−ス１の側縁面を摺動するため繰出爪２１の嵌合は浅く、ストッパ−４５がポット苗ケ−ス１の供給端部を係止することはない。
【００２３】
このような構成では、繰出爪２１が上動位置にあって、係止爪２２を案内通路３４から押出した状態で、かつ苗押出子３が引込んだ位置にあるときは、この繰出爪２１は案内通路３４内に深く喰い込んでいるから、後続のポット苗ケ−ス１が勢い良く供給されてきても、左右両側の繰出爪２２のストッパ−４５で係止するから、ポット苗ケ−ス１の供給位置合せを正確に行わせることができる。
【００２４】
このように構成する苗載台１１及び苗ケ−スガイド２等は、左右に一定の間隔部Ａを有して多条植の苗植付装置１５に伴うように苗植機体９に配置されている。又、各空ケ−ス収容棚１６も各苗ケ−スガイド２の前側に設けられる。
【００２５】
補助ステップ５１は、このような間隔部Ａの前側において、車体７の後端部に対して支枠５２で支持される。操縦者又は作業者は、苗植機体９の後側又は前側の操縦フロア５０側等から、この補助ステップ５１に踏上って、所定の作業、乃至操作を行うことができる。
【００２６】
この各間隔部Ａには、各苗送りレバ−５３や、苗植付深さレバ−５４等を設けている。この苗送りレバ−５３は、手動操作で前記繰出爪２１等を作動させて、繰出装置１３におけるポット苗ケ−ス１を繰出すことができる。この苗送りレバ−５３は、各苗ケ−スガイド２毎に設けられている。又、苗植付深さレバ−５４は、苗植機体９に対する各フロ−ト１０の上下揺動支軸の位置を上下に変更調節するもので、単一の苗植付深さレバ−５４の操作で全てのフロ−ト１０を同時に調節できる。これらの各レバ−５３，５４は、間隔部Ａの左右端寄りに位置して設けられ、前記補助ステップ５１への乗降に邪魔にならないようにしている。
【００２７】
これらのレバ−５３，５４等を操作するときは、この補助ステップ５１上に乗って行えば、操作が容易である。
【００２８】
よって、各苗繰出装置１３にポット苗ケ−ス１を供給したり、各空ケ−ス収容棚１６に収容された空ケ−スを取出すとき、更には苗繰出装置１３等における苗詰りを解消する等のメンテナンス等を行うときは、左右各苗繰出装置１３乃至空ケ−ス収容棚６間の間隔部Ａの前部に位置する補助ステップ５１に踏上って、これらの作業、操作を行う。従って、この補助ステップ５１が左右の各苗繰出装置１３等の間の間隔部Ａにあるため、作業者が高い苗繰出装置１３に邪魔されることが少く、間隔部Ａに深く入り込んで、作業、操作等を容易に安全に行うことができる。
【００２９】
車体７の操縦席５２後側部には、施肥ホッパ−５５、肥料繰出装置５６、及び施肥送風機６７等からなる施肥装置を設け、施肥パイプ５８を後方のフロ−ト１０の各苗植付位置近くに亘って連設し、各肥料繰出装置５６から繰出される肥料を施肥送風機６７による送風によって案内施肥しうる構成としている。前記補助ステップ５１はこの施肥装置の後側に設けられる。
【００３０】
図１１，図１２において、上例と異なる点は、前記施肥ホッパ−５５、及び肥料繰出装置５６等からなる施肥装置を、前記左右の苗繰出装置１３及び苗ケ−スガイド２の間の間隔部Ａに設けて低重心に構成したもので、苗植機体９に一体に連結される施肥フレ−ム６７によって支持され、この施肥フレ−ム６７内部の伝動機構を経て伝動する。各施肥装置から拡散施肥パイプ６８によって、苗植付位置後方に拡散させて表層施肥させているが、各苗植付位置近くに施肥パイプで施肥するように案内するもよい。
【００３１】
苗載台１１は、上下二段に構成されて、しかも苗繰出装置１３に対して左右へ切替移動自在であり、これら上下左右の各苗載台１１を対向する苗ケ−スガイド２に切替連通させて、ポット苗ケ−ス１の補給を行わせる構成としている。
【００３２】
このような構成にあっては、前記施肥ホッパ−５５の上側で苗載台１１に邪魔されない位置に前記補助ステップを設けるもよい。
【００３３】
なお、このような施肥装置は、表層施肥形態として、前記図９における施肥装置による土壌中への深層施肥と併せて行う構成とするもよい。
【００３４】
図１３、図１４において、上例と異なる点は、操縦席５２や苗植装置等の上側を覆うサンバイザ−６９の取付フレ−ム７０を、前記間隔部Ａを通して車体７の後端から後方へ突出させたもので、この取付フレ−ム７０の後端部と車体７前部の補助苗載枠７３の上端部との間に亘ってサンバイザ−６９を架設したものである。７４は補助苗載枠７３に取付けた補助苗載棚であり、後部の苗載台１１に補給するポット苗ケ−ス１を載せるもので、操縦フロア５０の外側部に沿って設けられる。
【００３５】
図１５〜図１７において、上例と異なる点は、前記施肥装置の施肥ホッパ−５５、及び肥料繰出装置５６等を、側面視Ｕ字状の苗ケ−スガイド２の内側に配置して、苗植機体９に取付けたものである。図１６では、各施肥装置共に苗ケ−スガイド２の苗繰出装置１３側と後側の空ケ−ス収容棚１６との間に設置し、この上部における施肥ホッパ−５５に対する供給漏斗７５を前記間隔部Ａに突出させて、肥料補給を容易にしている。
【００３６】
又、図１７では中央部の施肥装置のみ苗ケ−スガイド２の内側に設けるが、外側の施肥装置を間隔部Ａに設置したもので、各フロ−ト１０後部に設けられる作溝器８１で形成される施肥溝へ施肥パイプ５８で施肥案内する。
なお、作溝器８１は苗植機体９の後部に取付ける。施肥装置の肥料繰出装置５６の繰出ロ−ル等の伝動は苗植機体９の伝動機構の一部から連動する。
【００３７】
図１８、図１９において、上例と異なる点は、苗ケ−スガイド２の内側に設けられる施肥装置における施肥ホッパ−５５の蓋７６や、残留肥料を取出す取出口７７のシュ−タ７８等を、該苗ケ−スガイド２の後側苗繰出装置１３側に沿わせて設け、ポット苗ケ−ス１を苗載台ケ−スガイド２から取除いた状態で、これら蓋７６を後方上部Ｃへ回動させて開き、苗ケ−スガイド２の間から肥料を肥料ホッパ−５５内へ補給できる。又、この蓋７６を閉めたときは、苗ケ−スガイド２の下側に沿った位置Ｂにあってポット苗ケ−ス１の繰出の邪魔にならない。
【００３８】
又、シュ−タ７８は、樋状の湾曲面に形成され、苗ケ−スガイド２に対して枢支７９されて、ポット苗ケ−ス１の底面側の繰出軌跡面に沿う姿勢Ｄと、このポット苗ケ−ス１の繰出通路を交差する姿勢Ｅとに切替回動される。８０は肥料容器で、該取出口７７からシュ−タ７８によって苗ケ−スガイド２の後方へ取出す肥料を収容する。
【図面の簡単な説明】
【図１】苗ケ−スガイド、及び繰出装置部等の一部側面図。
【図２】その一部の作用を示す側面図。
【図３】その一部の作用を示す側面図。
【図４】ポット苗分離装置部乃至苗植付装置部等の関係を示す側面図。
【図５】ポット苗ケ−スの斜視図。
【図６】一部の苗植装置部の展開平面図。
【図７】繰出装置部の側面図。
【図８】その正面図。
【図９】全体の側面図。
【図１０】その平面図。
【図１１】他の構成を示す側面図。
【図１２】その背面図。
【図１３】他の構成を示す側面図。
【図１４】その背面図。
【図１５】他の構成を示す側面図。
【図１６】その背面図。
【図１７】他の構成を示す背面図。
【図１８】他の構成を示す側面図。
【図１９】その背面図。
【符号の説明】
１…ポット苗ケース、２…苗ケースガイド、３…苗押出子、４…ポット苗、５…苗受ベルト、７…車体、８…平行リンク、９…苗植機体、１１…苗載台、１３…繰出装置、１４…ポット苗分離装置、１５…苗植付装置、１７…ポット、１８…繰出穴、２０…載替装置、２１…繰出爪、３４…案内通路、４２…苗ホルダ、４３…スクレーパ、５１…補助ステップ、５２…操縦席、５５…施肥ホッパ−、７５…供給漏斗、Ａ…間隔部[0001]
BACKGROUND OF THE INVENTION
This invention belongs to the technical field of a multi-row planting machine for planting seedlings placed on a seedling table.
[0002]
[Prior art]
Conventionally, in a seedling planting machine for transplanting pot seedlings, a seedling planting body is provided on a vehicle body provided with a cockpit so that it can be moved up and down via a link, and a plurality of seedling platforms arranged on the left and right are formed with a plurality of spacing portions between each other A pot seedling case that accommodates a plurality of pot seedlings is placed on the seedling stage and supported by a seedling planting machine, and the pot seedling case is separated by a feeding device on the seedling stage. 2. Description of the Related Art There is known a multi-planting seedling planting machine configured to plant a pot seedling separated from a pot seedling case by a seedling separating apparatus, which is conveyed to a seedling separating position of the apparatus.
[0003]
[Problems to be solved by the invention]
In this seedling transplanter, it is an object of the present invention to make the airframe compact by effectively utilizing the spacing portion.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has taken the following technical means.
That is, a seedling planting body 9 is provided on the rear side of the vehicle body 7 including the cockpit 52 so as to be movable up and down. On the seedling planting body 9 side, the pots 17 are arranged at regular intervals vertically and horizontally supported by the seedling planting body 9. A seedling stage 11 for mounting the pot seedling case 1, a U-shaped seedling case guide 2 for guiding the pot seedling case 1 supplied from the seedling stage 11, and the seedling case guide 2 A feeding device 13 that feeds and transfers the pot seedling case 1 at every pitch by a feeding claw 21 that engages with the feeding hole 18 of the pot seedling case 1 at the start end of the guide passage 34, and the pot seedling case 1 arranged along the lateral direction. A pot seedling separation device 14 for pushing out the pot seedlings 4 arranged side by side by the seedling pushers 3 provided at the same interval as the number of the pots 17 provided, and the pot seedlings extruded by the pot seedling separation device 14 4 is held by the side-by-side seedling holder 42 The transfer device 20 for transferring the pot seedlings 4 arranged side by side from the seedling holder 42 to the upper surface of the pair of left and right seedling receiving belts 5 by the comb-shaped scraper 43 and the pair of left and right seedling receiving belts 5 A seedling planting device 15 for planting the pot seedlings 4 transferred to both sides, and a plurality of planted plants having a structure in which a plurality of the seedling platforms 11 are arranged on the left and right sides so as to form a spacing portion A therebetween. In the seedling planting machine, a fertilizer hopper 55 of a fertilizer is provided at each position inside the seedling case guide 2 corresponding to each seedling mount 11, and a fertilizer supply port 75 to the fertilizer hopper 55 is provided in a plan view. A plurality of planted seedlings provided to project from the spacing portion A and provided with a step portion 51 which is supported from the rear end portion of the vehicle body 7 and does not overlap with the seedling mount 11 in a plan view and is located only in the spacing portion A. A planter was used.
[0005]
[Operation and effect of the invention]
This seedling planting machine is configured such that the pot seedling case 1 is provided at the start end of the guide passage 34 of the U-shaped seedling case guide 2 that guides the pot seedling case 1 supplied from the seedling mount 11 while the machine is running. The pot seedling case 1 is fed and transferred at every pitch by the feeding claw 21 engaged with the feeding hole 18, and the pot seedlings 4 arranged side by side are pushed out by the seedling pusher 3 of the pot seedling separation device 14. The side-by-side pot seedlings 4 pushed out by the pot seedling separation device 14 are placed on the upper surfaces of the pair of left and right seedling receiving belts 5 by the placement device 20, and are placed on both left and right sides by the pair of left and right seedling receiving belts 5. It is transferred and planted in a plurality of strips by the seedling planting device 15. And since the fertilizer hopper 55 of the fertilizer is provided at the inner position of the seedling case guide 2 corresponding to each seedling mount 11, the longitudinal length of the machine body can be reduced, and the machine body can be made compact. Can be planned. Further, a fertilizer supply port 75 to the fertilizer hopper 55 is provided so as to protrude from the spacing portion A in a plan view, and is supported from the rear end portion of the vehicle body 7 so as not to overlap the seedling platform 11 in a plan view. Since the step part 51 located only in the part A is provided, the fertilizer supply to the fertilizer supply port 75 can be easily performed from the spacing part A without the seedling mount 11 being in the way, and the seedling planting body 9 Since the seedling stage 11 does not interfere with the step part 51 even if it is moved up and down, the step part 51 can be extended to a desired rear side position. As a result, the operator passes the step part 51 from the vehicle body 7 side. Thus, the seedling mount 11 can be easily made without obstructing the fertilizer supply port 75.
[0006]
【Example】
The seedling transplanter is connected to the rear side of the tractor vehicle body 7 by a parallel link 8 so as to be movable up and down. A lower end of the seedling transplanter body 9 has a float 10 whose front end can swing up and down. 1 includes a seedling stage 11 for placing the pot seedling case 1, a seedling case guide 2 for guiding the pot seedling stage 1 supplied from the seedling stage 11 while being fed by the feeding device 13, and the pot. A pot seedling separating device 14 for extruding and separating each pot seedling 4 from the seedling case 1 by a seedling pusher 3; a seedling receiving belt 5 for receiving the pot seedling 4 which has been separated by extrusion and transporting it to a seedling planting device 15; The transfer device 20 that receives the pot seedlings extruded and separated by these seedling pushers 3 and places the seedlings on the upper surface of the seedling receiving belt 5, and the empty case after the pot seedlings 4 are extruded and separated in this way are accommodated. It has an empty case storage shelf 16 and the like, It is disposed apparatus 15.
[0007]
The pot seedling case 1 is made of synthetic resin and is formed by arranging round pot-shaped pots 17 vertically and horizontally at regular intervals, and has flexibility. Along the left and right side edges of the pot seedling case 1, feeding holes 18 are formed at regular intervals. The pot seedling 4 is obtained by filling each pot 17 of the pot seedling case 1 with a flooring material and seeding and raising seedlings, and transplanting the seedlings grown in each pot 17 as a unit. An extrusion hole 19 through which the seedling pusher 3 in the pot seedling separation device 14 can be inserted is formed at the bottom of each pot 17.
[0008]
The seedling case guide 2 is formed in a U shape when viewed from the side, and the left and right side edges of the plate-shaped pot seedling case 1 are formed on the left and right sides of the seedling case guide 2 in plan view. The guide passage 34 having a U-shaped cross section is slid and guided so as to detour from the rear side portion of the U-shaped guide 2 to the front side portion, and the seedling pusher 3 is pushed out by the front side portion. Then, it is guided to the empty case storage rack 16 as an empty case at the rear side.
[0009]
The feeding device 13 provided at the start end of the guide passage 34 of the seedling case guide 2 engages with the feeding hole 18 of the pot seedling case 1 and feeds and transfers the pot seedling case 1 every pitch. The feeding claw 21, the engaging claw 22 that engages with the feeding hole 18 for every one pitch to lock the feeding position of the pot seedling case 1, and the pot seedling case 1 that is fed by the feeding claw 21 A claw claw 23 that engages with the lower edge of the subsequent pot seedling case 1 supplied at an interval to lock the supply of the subsequent pot seedling case 1 in a fixed position; And a brake 24 for applying a friction brake force to the pot seedling case 1 fed by the feeding claw 21.
[0010]
By the reciprocating swing of the turning arm 25 linked via the transmission mechanism inside the transmission case constituting the seedling planting body 9 and the feeding claw 21 pivotally attached 27 to the turning arm 25. The pot seedling case 1 is fed out every pitch. When the feeding claw 21 is fed, the locking claw 22 is removed from the feeding hole 18 by the swinging arm 25, so that the pot seedling case 1 can be fed. I'm left.
[0011]
The blocking claw 23 is provided on a slider 31 that is movable in the feeding direction with respect to the seedling case guide 2 so as to be rotatable about a horizontal axis 32. The case 1 is repelled so as to be positioned in the guide passage 34 through which the side edge portion having the feeding hole 18 of the case 1 passes. At the lower end of the blocking claw 23, there is a cam lever 36 that is rotatable about a shaft 35 in a direction orthogonal to the shaft 32, and to the laterally outer side of the seedling case guide 2 against the spring 37. When it is pivotable and is in the hanging direction by the elastic force of the spring 37, the tip of the cam lever 36 is integral with the seedling pusher 3 and is in the same side-by-side position, and the seedling case guide 2 It is opposed to the cam protrusion 38 located outside.
[0012]
The slider 31 has a long hole 40 fitted to the guide pin 39 of the seedling case guide 2 and is movable along the guide passage 34 for a certain length. The slider 31 has a large spring coefficient and a spring coefficient. The slider 31 is suspended by a small spring 64 so that the slider 31 can move downward against the buffer spring 63 at a position where the slider 31 is moved downward by a predetermined length.
[0013]
When the pot seedling case 1 is guided and supplied from the seedling mount 11 to the guide passage 34 of the seedling case guide 2, it is spaced from the rear end portion of the pot seedling case 1 already supplied. If there is, the lower edge of the subsequent pot seedling case 1 collides with the blocking claw 23. This impact force is alleviated by the spring 64 and the buffer spring 63. At this time, even when the downward movement amount of the feeding claw 23 is small, it is moved downward against the weak spring 64, and the cam lever 36 at the lower end can be positioned within the working range of the cam protrusion 38. When the seedling pusher 3 is already in operation, that is, when the cam projection 38 is projected, the tip of the cam lever 36 contacts the cam projection 38 and resists the spring 37 to the outside. Since it is rotated, the cam lever 36 or the claw 23 does not interfere with the downward movement. In addition, when the cam protrusion 38 abuts on the downward movement position of the cam lever 36, the blocking claw 23 rotates around the shaft 32 against the spring 33, so that the blocking side 23 is separated from the guide passage 34. Then, the pot seedling case 1 is unlocked, moved downward, and supplied to the working area of the feeding claw 21. At this time, since the latching claw 23 has no locking load of the pot seedling case 1, the blocking claw 23 is pulled back to the original position by the spring 64. Reference numeral 65 is a spring for the brake 24, and 66 is a spring for tensioning the locking claw 22 so as to protrude around the shaft 71 toward the guide passage 34.
[0014]
The seedling pushers 3 of the pot seedling separation device 14 are provided in the same number and the same number as the pots 17 arranged along the lateral direction in the pot seedling case 1, such as pinions and racks. The transmission mechanism causes the reciprocating operation of the retraction claw 21 to reciprocate once, and the pot seedling 4 is pushed out from the pots 17 arranged side by side at opposite positions.
[0015]
In the replacement device 20, the pot seedling 4 extruded by the seedling pusher 3 is held by a side-by-side seedling holder 42 moved up and down by the parallel link mechanism 41, and the seedling is moved by the downward movement of the parallel link mechanism 41. Each pot seedling 4 is transferred from the seedling holder 42 to the upper surface of the seedling receiving belt 5 by swinging the comb-shaped scraper 43 at a position close to the upper surface of the seedling receiving belt 5 by moving the holder 42 downward.
[0016]
In the seedling receiving belt 5, partitioning protrusions 44 are arranged on the rotating peripheral surface at the same intervals as the seedling holders 42 arranged side by side, and one pot seedling 4 is addressed to each interval portion between the partitioning protrusions 44. Place. The seedling receiving belt 5 is configured as a pair of left and right so that the seedling receiving belt 5 rotates from the center toward the left and right sides with respect to one pot seedling case 1. A planting device 15 is provided. This seedling planting device 15 has a seedling planting claw in the form of a rotary, and plantes the pot seedling 4 delivered by the seedling receiving belt 5 on the soil surface leveled by the float 10 for each strain. wear.
[0017]
47 is an input shaft from the vehicle body 7 side, 48 is a drive arm for interlocking the crank arm 25 via a link mechanism or the like, and 49 is a drive for interlocking the seedling pusher 3 via a rack or pinion mechanism or the like. A cam 72 is a drive arm that interlocks the parallel link 41 of the replacement device 20 via a link mechanism or the like.
[0018]
The cover 6 provided along the lower portion of the seedling case guide 2 is formed in a plate shape or a horizontal cross-shape, and is formed at the lower portion on the seedling receiving belt 5 side of the U-shaped seedling case guide 2. The seedling case guide 2 is configured to cover the entire width. Therefore, even if there is a defective pot seedling which is pushed out from the pot 17 by the seedling pusher 3 and is not completely held in the seedling holder 42 and is transferred along with the feeding transfer of the pot seedling case 1, The defective pot seedling is guided to the upper surface of the cover 6 so as not to hang down or fall to the seedling receiving belt 5 side.
[0019]
The lower end of the cover 6 is opened at the rear side part of the seedling receiving belt 5, and the defective pot seedling taken out together with the pot seedling case 1 to the opening part can be detached from the pot 17 and fall.
[0020]
The pot seedling case 1 from which the pot seedling 4 has been pushed out by the seedling pusher 3 is raised as an empty case on the rear side of the seedling case guide 2 and loaded on the empty case storage shelf 16. .
[0021]
The feeding claw 21 is fitted deeply into the guide passage 34 in the state where the seedling case guide 2 does not have the pot seedling case 1, and the pot seedling case with the head of the feeding claw 21 as a stopper 45. The lower end edge of the pot seedling case 1 supplied at this time is locked by this stopper 45.
[0022]
The initially supplied pot seedling case 1 is once locked by the stopper 45 portion of the feeding claw 21, and is engaged with the feeding hole 18 of the pot seedling case 1 by the swinging of the feeding claw 21. Then, the feeding action is performed. At this time, since the feeding claw 21 slides on the side edge surface of the pot seedling case 1, the fitting of the feeding claw 21 is shallow, and the stopper 45 locks the supply end of the pot seedling case 1. There is nothing.
[0023]
In such a configuration, when the feeding claw 21 is in the upward movement position and the locking claw 22 is pushed out from the guide passage 34 and the seedling pusher 3 is in the retracted position, this feeding claw 21 Since it is deeply biting into the guide passage 34, even if the subsequent pot seedling case 1 is vigorously supplied, it is locked by the stoppers 45 of the feeding claws 22 on the left and right sides. It is possible to accurately adjust the supply position of the nozzle 1.
[0024]
The seedling mount 11 and the seedling case guide 2 and the like configured in this way are arranged on the seedling planting body 9 so as to be accompanied by the multi-planting seedling planting device 15 with a constant spacing portion A on the left and right. Yes. Each empty case storage shelf 16 is also provided on the front side of each seedling case guide 2.
[0025]
The auxiliary step 51 is supported by the support frame 52 with respect to the rear end portion of the vehicle body 7 on the front side of the gap portion A. The operator or operator can perform a predetermined operation or operation by stepping on the auxiliary step 51 from the rear or front control floor 50 side of the seedling transplanter body 9 or the like.
[0026]
Each spacing portion A is provided with a seedling feeding lever 53, a seedling planting depth lever 54, and the like. This seedling feeding lever 53 can feed the pot seedling case 1 in the feeding device 13 by manually operating the feeding claw 21 and the like. This seedling feeding lever 53 is provided for each seedling case guide 2. The seedling planting depth lever 54 adjusts the position of the vertically swinging support shaft of each float 10 with respect to the seedling planting body 9 up and down, and is a single seedling planting depth lever 54. All the floats 10 can be adjusted at the same time by this operation. Each of these levers 53 and 54 is provided near the left and right ends of the space A so as not to obstruct getting on and off the auxiliary step 51.
[0027]
When operating these levers 53, 54, etc., the operation is easy if they ride on this auxiliary step 51.
[0028]
Therefore, when the pot seedling case 1 is supplied to each seedling feeding device 13 or the empty case stored in each empty case storage shelf 16 is taken out, further seedling clogging in the seedling feeding device 13 or the like is performed. When performing maintenance such as elimination, step up to the auxiliary step 51 located at the front part of the space A between the left and right seedling feeding devices 13 to the empty case storage shelves 6 to perform these operations and operations. I do. Therefore, since this auxiliary step 51 is located in the interval portion A between the left and right seedling feeding devices 13 and the like, the operator is less likely to be disturbed by the high seedling feeding device 13, and enters the interval portion A deeply and works. , Operations and the like can be easily and safely performed.
[0029]
The rear side portion of the cockpit 52 of the vehicle body 7 is provided with a fertilizer including a fertilizer hopper 55, a fertilizer feeding device 56, a fertilizer blower 67, and the like, and the fertilizer pipe 58 is connected to each planting position of the rear float 10. It is set as the structure which can carry out guidance fertilization by the ventilation by the fertilizer blower 67 for the fertilizer delivered from each fertilizer delivery apparatus 56 continuously provided near. The auxiliary step 51 is provided on the rear side of the fertilizer application apparatus.
[0030]
11 and 12, the difference from the above example is that a fertilizer application device including the fertilizer hopper 55, the fertilizer supply device 56, and the like is disposed between the left and right seedling supply devices 13 and the seedling case guide 2. It is provided at A and has a low center of gravity, is supported by a fertilization frame 67 that is integrally connected to the seedling planting body 9, and is transmitted through a transmission mechanism inside the fertilization frame 67. Although each surface fertilizer is diffused to the rear of the seedling planting position by the diffusion fertilizer pipe 68 from each fertilizer, it may be guided to be fertilized by the fertilizer pipe near each seedling planting position.
[0031]
The seedling placing table 11 is configured in two upper and lower stages, and can be switched to the left and right with respect to the seedling feeding device 13. The seedling placing guides 11 are switched and communicated with the seedling case guides 2 facing each other. The pot seedling case 1 is replenished.
[0032]
In such a configuration, the auxiliary step may be provided at a position on the upper side of the fertilizer hopper 55 so as not to be disturbed by the seedling mount 11.
[0033]
In addition, such a fertilizer application is good also as a structure performed in combination with the deep layer fertilization to the soil by the fertilizer in FIG. 9 as a surface layer fertilization form.
[0034]
13 and 14, the difference from the above example is that the mounting frame 70 of the sun visor 69 that covers the upper side of the cockpit 52, the seedling planting device and the like is passed from the rear end of the vehicle body 7 to the rear through the spacing portion A. A sun visor 69 is erected between the rear end portion of the mounting frame 70 and the upper end portion of the auxiliary seedling mounting frame 73 at the front portion of the vehicle body 7. Reference numeral 74 denotes an auxiliary seedling mounting shelf attached to the auxiliary seedling mounting frame 73, which places the pot seedling case 1 to be replenished on the rear seedling mounting base 11, and is provided along the outer side of the control floor 50.
[0035]
15 to 17, the difference from the above example is that the fertilizer hopper 55 of the fertilizer and the fertilizer feeding device 56 are arranged inside the seedling case guide 2 having a U-shape in a side view. It is attached to the transplanter body 9. In FIG. 16, each fertilizer is installed between the seedling feeding device 13 side of the seedling case guide 2 and the empty case storage shelf 16 on the rear side, and the supply funnel 75 for the fertilizer hopper 55 at the upper portion is provided. It is made to protrude in the space | interval part A, and the fertilizer supply is made easy.
[0036]
In FIG. 17, only the fertilizer at the center is provided inside the seedling case guide 2, but the fertilizer at the outside is installed at the interval portion A, and the groover 81 provided at the rear of each float 10 is used. The fertilization pipe 58 guides the fertilization to the fertilization groove formed.
The grooving device 81 is attached to the rear portion of the seedling planting body 9. Transmission of the feeding roll of the fertilizer feeding device 56 of the fertilizer application is interlocked from a part of the transmission mechanism of the seedling planting body 9.
[0037]
18 and 19, the difference from the above example is that a cover 76 of a fertilizer hopper 55 in a fertilizer provided inside the seedling case guide 2 and a shredder 78 of an outlet 77 for taking out residual fertilizer are provided. The lid 76 is moved to the rear upper part C with the pot seedling case 1 removed from the seedling stage case guide 2 along the rear seedling feeding device 13 side of the seedling case guide 2. The fertilizer can be replenished into the fertilizer hopper 55 from between the seedling case guide 2 by rotating and opening. Further, when the lid 76 is closed, the pot seedling case 1 is not obstructed in the position B along the lower side of the seedling case guide 2.
[0038]
Further, the shutter 78 is formed in a bowl-shaped curved surface, is pivotally supported 79 with respect to the seedling case guide 2, and has a posture D along the feeding locus surface on the bottom side of the pot seedling case 1. The pot seedling case 1 is switched to a posture E that intersects the feeding path of the pot seedling case 1. Reference numeral 80 denotes a fertilizer container, which stores fertilizer taken out from the outlet 77 to the rear of the seedling case guide 2 by a shooter 78.
[Brief description of the drawings]
FIG. 1 is a partial side view of a seedling case guide, a feeding device section, and the like.
FIG. 2 is a side view showing a part of the operation.
FIG. 3 is a side view showing a part of the operation.
FIG. 4 is a side view showing a relationship between a pot seedling separation device unit and a seedling planting device unit.
FIG. 5 is a perspective view of a pot seedling case.
FIG. 6 is a development plan view of a part of the seedling planting unit.
FIG. 7 is a side view of the feeding device unit.
FIG. 8 is a front view thereof.
FIG. 9 is an overall side view.
FIG. 10 is a plan view thereof.
FIG. 11 is a side view showing another configuration.
FIG. 12 is a rear view thereof.
FIG. 13 is a side view showing another configuration.
FIG. 14 is a rear view thereof.
FIG. 15 is a side view showing another configuration.
FIG. 16 is a rear view thereof.
FIG. 17 is a rear view showing another configuration.
FIG. 18 is a side view showing another configuration.
FIG. 19 is a rear view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Pot seedling case, 2 ... Seedling case guide, 3 ... Seedling pusher, 4 ... Pot seedling, 5 ... Seedling receiving belt, 7 ... Car body, 8 ... Parallel link, 9 ... Seedling planting body, 11 ... Seedling mounting stage, DESCRIPTION OF SYMBOLS 13 ... Feeding device, 14 ... Pot seedling separation device, 15 ... Seedling planting device, 17 ... Pot, 18 ... Feeding hole, 20 ... Transfer device, 21 ... Feeding claw, 34 ... Guide passage, 42 ... Seedling holder, 43 ... scraper, 51 ... auxiliary step, 52 ... cockpit, 55 ... fertilizer hopper, 75 ... supply funnel, A ... spacing section

Claims

A seedling planting body (9) is provided on the rear side of the vehicle body (7) including the cockpit (52) so as to be movable up and down. The seedling planting body (9) side is supported by the seedling planting body (9) and is potted ( 17) A seedling stage (11) for placing the pot seedling case (1) arranged vertically and horizontally at regular intervals, and a pot seedling case (1) supplied from the seedling stage (11) are guided. Seedling case guide (2) having a U-shape in side view, and a feeding claw (21) that engages with a feeding hole (18) of the pot seedling case (1) at the start end of the guide passage (34) of the seedling case guide (2) ) And the feeding device (13) for feeding and transferring the pot seedling case (1) every pitch, and the number of pots (17) arranged in the lateral direction in the pot seedling case (1). Pot seedling separation device (1) for extruding each pot seedling (4) arranged side by side with a seedling pusher (3) provided at the same interval ) And the pot seedling (4) pushed out by the pot seedling separation device (14) is held down by the sidelined seedling holder (42) and moved downward from the seedling holder (42) by the comb-shaped scraper (43). A transfer device (20) for transferring the pot seedlings (4) arranged side by side on the upper surfaces of the pair of seedling receiving belts (5), and a pot transferred to the left and right sides by the pair of left and right seedling receiving belts (5) A seedling planting device (15) for planting seedlings (4), and a plurality of strips having a structure in which a plurality of the seedling mounts (11) are arranged on the left and right sides so as to form an interval (A) between them. In the seedling planting machine, fertilizer hoppers (55) of a fertilizer application device are respectively provided at positions inside the seedling case guide (2) corresponding to the respective seedling mounts (11), and the fertilizer hoppers ( 55) a fertilizer supply port (75) is provided so as to protrude from the space (A), A multi-row planting seedling machine provided with a step portion (51) which is supported from the rear end portion of the body (7) and does not overlap with the seedling placing stand (11) in a plan view and is located only in the interval portion (A) .