JP4540181B2

JP4540181B2 - Vegetable transplanter

Info

Publication number: JP4540181B2
Application number: JP2000147785A
Authority: JP
Inventors: 智洋竹山; 俊郎和田; 洋三大垣
Original assignee: Kanzaki Kokyukoki Manufacturing Co Ltd; Yanmar Co Ltd
Current assignee: Kanzaki Kokyukoki Manufacturing Co Ltd; Yanmar Co Ltd
Priority date: 2000-05-19
Filing date: 2000-05-19
Publication date: 2010-09-08
Anticipated expiration: 2020-05-19
Also published as: JP2001320920A

Description

【０００１】
【発明の属する技術分野】
本発明は苗トレイから１株分の玉ネギ、葉ネギ、白ネギなどの野菜苗を取出して圃場に植付けるようにした野菜移植機に関する。
【０００２】
【発明が解決しようとする課題】
従来、苗載台の苗トレイから１つの苗取出爪によって取出した苗を１つの苗植付爪に受継いで１条分の苗植付けを行っているが、これら爪の作業速度には限界があって速くできないため、玉ネギなどのような植付株間（８〜１０ｃｍ）の短い作物の場合、車速を遅くして（例えば０．２ｍ／ｓ前後）植付株間の短い作物に対応させる必要があるなどして、作業能率が極めて悪いという不都合があった。
【０００３】
また、苗取出爪からの苗を苗植付爪に受継いで苗植付けを行う構造の場合、苗取出爪が苗植付爪との苗受継ぎ位置で苗を放出した直後に、苗取出爪姿勢が変化すると苗植付爪に放出した苗を苗取出爪によって押すなどして、苗姿勢を不安定とさせて適正植付姿勢の苗植付けが行えないなどの不都合があった。
【０００４】
【課題を解決するための手段】
本発明が解決すべき課題は以上の如くであり、次に該課題を解決するための手段を説明する。
請求項１においては、苗取出ロータリケース（３４）の１回転中に、２つ１組の苗取出爪（２３・２３）によって、１８０度位相を異ならせて苗載台（２１）より１条分２株の苗（Ｎ）を取出す苗取出部と、苗植付ロータリケース（９５）の１回転中に、１８０度位相を異ならせる２つ１組の苗植付爪（２５・２５）によって、前記苗取出爪（２３・２３）からの苗（Ｎ）を受継いで、１条分２株の苗を植付ける苗植付部とを設け、該苗取出爪（２３）は、前記苗取出ロータリケース（３４）の１回転中に、ローラ（７６）と爪ガイド（７７）のガイド面（７７ａ）とが非接触で、爪ケース（３６）の苗取出位置近傍で、苗取出爪（２３）の先端を上向きとして、機体前後方向に移動する運動軌跡（Ａ１）と、前記苗取出ロータリケース（３４）の１回転中に、該ローラ（７６）が該爪ガイド（７７）のガイド面（７７ａ）に接触して、下動する運動軌跡（Ａ２）との、合成によって形成される運動軌跡（Ａ）に沿って、苗取出爪（２３）が上下に移動すべく構成し、該苗取出爪（２３）の運動軌跡（Ａ）上の、機体前後方向に該苗取出爪（２３）の爪姿勢の変化の小さい下降位置（Ａ４）で、該苗取出爪（２３）の苗を苗植付爪（２５）に放出するように構成したものである。
【０００５】
請求項２においては、請求項１記載の野菜移植機において、前記苗取出爪（２３）の運動軌跡（Ａ）上における、機体前後方向の速度差の小さい下降位置（Ａ４）で、前記苗取出爪（２３）の苗を苗植付爪（２５）に放出するように構成したものである。
【０００６】
【発明の実施の形態】
以下本発明の実施例を図面に基づいて詳述する。図１は移植機の全体側面図、図２は同全体平面図、図３は移植部の側面説明図、図４は移植部の平面説明図であり、図中（１）はエンジン（２）を搭載する移動機体、（３）は前後スライドフレーム（４）（５）に機体（１）を左右スライド自在に支持する固定フレーム、（６）はスライドアーム（７）を介して機体（１）をスライド動作させる油圧式スライドシリンダ、（８）はミッションケース（９）からの駆動横軸（１０）に左右伝動ケース（１１）を介し上下揺動自在に支持する左右の後車輪、（１２）は前記固定フレーム（３）の前端側にアクスルフレーム（１３）を介し上下揺動自在に支持する左右の前車輪、（１４）は固定フレーム（３）後端側のスイング軸（１５）を介し前後車輪（１２）（８）を上下揺動させる油圧式スイングシリンダ、（１６）は機体（１）の後方にシャーシフレーム（１７）を介し装設する苗取出部である苗供給装置、（１８）は左右の後車輪（８）間に装設してミッションケース（９）に植付駆動ケース（１９）を介して連結させる苗植付部である苗植付装置、（２０）は畝面（Ｍ）を鎮圧する左右１対の鎮圧ローラであり、前記苗供給装置（１６）の左右往復移動する苗載台（２１）上の苗トレイ（２２）より１株分のポット苗（Ｎ）を箸形苗取出爪（２３）でもって取出し、この取出されたポット苗（Ｎ）を前記苗植付装置（１８）のマルチカッタ（２４）と連動して上下動するホッパ開孔形苗植付爪（２５）に放出供給して、操向ハンドル（２６）操作による機体（１）の走行中畝面（Ｍ）に一定間隔毎のポット苗（Ｎ）の植付け（移植）を行うように構成すると共に、機体（１）の左右スライド調節によって植付条位置の変更などを行うように構成している。
【０００７】
また、（２７）は前記スイングシリンダ（１４）を動作させて機体（１）を昇降操作する昇降レバー、（２８）は植付クラッチの入切を行う植付クラッチレバー、（２９）は走行速度を変速する主変速レバー、（３０）は機体（１）を左右方向に位置調節するスライド調節レバー、（３１）は左右後車輪（８）の駆動を停止させて機体（１）を旋回操作する左右サイドクラッチレバーである。
【０００８】
図３乃至図４に示す如く、前記苗取出爪（２３）及び苗植付爪（２５）は、１つの苗載台（２１）の苗トレイ（２２）に対し一定の間隔を有して左右に並設させ、同位相駆動して１つの苗トレイ（２２）から２条分の苗取りと同時２条の苗植付けを行うと共に、各苗取出爪（２３）及び苗植付爪（２５）における各１条分の同一爪運動軌跡（Ａ）（Ｂ）上で１８０度位相を異ならせて、１つの運動軌跡（Ａ）（Ｂ）中で２回の苗取り及び苗植付けを行うように設けて、苗取速度及び苗植付速度を略２倍に増速させて高速植付作業を行うように構成している。
【０００９】
図５乃至図２０に示す如く、前記苗取出爪（２３）は、前記シャーシフレーム（１７）の固定ブラケット（３２）に位相調節板（３３）を固定させ、一方向に等速回転させるロータリケース（３４）を取出爪駆動軸（３５）を介して調節板（３３）に支持させ、駆動軸（３５）を中心としたロータリケース（３４）の１８０度対称位置に２つの爪ケース（３６）の基端爪ケース軸（３７）を取付け、これら爪ケース（３６）の先端に苗取出爪（２３）をそれぞれ取付けている。
【００１０】
また、前記ロータリケース（３４）内の取出爪駆動軸（３５）にサンギヤ（３８）を遊嵌させ、調節板（３３）にサンギヤ（３８）を位相調節自在に固定させると共に、サンギヤ（３８）と同一歯数のアイドルギヤ（３９）及びプラネタリギヤ（４０）を中間軸（４１）及びケース軸（３７）を介してロータリケース（３４）内に支持させるもので、各ギヤ（３８）（３９）（４０）を不等速ギヤに設け、中央のサンギヤ（３８）に２つのアイドルギヤ（３９）を介し２つのプラネタリギヤ（４０）を一列且つ対称に常噛させ、ロータリケース（３４）の等速１回転中に同一爪運動軌跡（Ａ）で１８０度位相を異ならせて、交互に苗トレイ（２２）より２株分の苗（Ｎ）の取出しを行うように構成している。
【００１１】
さらに、前記苗取出爪（２３）を左右に開閉する爪開閉カム（４２）を爪ケース（３６）に設けるもので、爪ケース軸（３７）を貫挿させロータリケース（３４）に位置調節自在に固定させる駆動カム軸（４３）に開閉カム（４２）を連結させると共に、Ｌ形の爪ケース（３６）先端側で開閉ロッド（４４）（４５）を中心として苗取出爪（２３）の左右爪体（２３ａ）（２３ｂ）を開閉する左右開閉アーム（４６）（４７）に従動カム（４８）及び揺動板（４９）を介し開閉カム（４２）を連結させている。前記従動カム（４８）は爪ケース（３６）内で従動カム軸（５０）に基端を固定させ、先端一側の開閉カム部（４８ａ）を開閉カム（４２）の外周カム面（４２ａ）に摺接させ、爪ケース（３６）外側に突出させるカム軸（５０）の軸端にＬ形の揺動板（４９）基端を固定させ、左右方向にＬ形状に折曲げる揺動板（４９）の先端折曲部（４９ａ）に突出高さ調節自在に調節ネジ軸（５１）を取付け、開閉アーム（４７）の他端側に折曲形成する開閉部（４７ａ）に前記ネジ軸（５１）の下端先端部（５１ａ）を当接させるように構成している。
【００１２】
また、前記開閉アーム（４６）（４７）は開閉ロッド（４４）（４５）に固定させ、一方のアーム（４６）に形成する半円形係合凸部（４６ａ）と他方のアーム（４７）に形成する半円形係合凹部（４７ａ）とを係合連結させ、一方のアーム（４６）と爪ケース（３６）間に爪開方向用の捩りコイルバネ（５２）を介設し、他方のアーム（４７）の切欠溝（５３）に固設するナット部材（５４）に突出高さ調節自在にボルト部材（５５）を取付け、爪ケース（３６）の外側面に固設するストッパ部材（５６）の折曲ストッパ部（５６ａ）に前記バネ（５２）力でボルト部材（５５）の頭部を当接させて左右爪体（２３ａ）（２３ｂ）の開保持を図る一方、開閉カム（４２）の回転で揺動板（４９）を揺動させネジ軸（５１）の先端部（５１ａ）でアーム（４７）をバネ（５２）力に抗し一定量下方向に揺動させるとき左右爪体（２３ａ）（２３ｂ）を閉とさせて苗の挾持を行うように構成している。
【００１３】
さらに図１７乃至図２０にも示す如く、左右爪体（２３ａ）（２３ｂ）の先端外側に先端輪状部（５７）をそれぞれ遊嵌して上下動させる線状の左右苗押出部材（５８）を設け、爪ケース（３６）外側のＬ形状苗押出操作部材（５９）に取付けるもので、苗押出操作部材（５９）は左右苗押出部材（５８）の各上端を軸（６０）を介し一端側に連結させる左右苗押出操作板（６１）（６２）を備え、左右の操作板（６１）（６２）の他端間を横軸（６３）で相互に連結し、爪ケース（３６）側の操作板（６２）の略中間部を回動操作軸（６４）を介し爪ケース（３６）に回動自在に支持させると共に、操作軸（６４）外周で操作板（６２）と前記ストッパ部材（５６）のバネ圧調節取付部（５６ｂ）と間に、苗押出部材（５８）に対し下動させる方向のバネ力を付勢する捩りコイルバネ（６５）を介設させている。そして前記操作軸（６４）には前記従動カム（４８）の先端他側に形成する苗押出カム部（４８ｂ）に摺接させる押出従動カム（６６）を固設し、前記開閉カム（４２）の回動によって苗取出爪（２３）が開放状態となるときには、従動カム（４８）（６６）及び操作板（６１）（６２）を介し苗押出部材（５８）を下動させて苗取出爪（２３）より苗（Ｎ）を押出すように構成している。
【００１４】
また、前記爪ケース軸（３７）はプラネタリギヤ（４０）に対し一体で駆動カム軸（４３）に対しては遊転自在に設け、駆動カム軸（４３）に筒軸（６７）及びボス部材（６８）を介し爪ケース（３６）を回転自在に支持させると共に、図１４にも示す如くボス部材（６８）の外周でケース軸（３７）の軸端に固設するバネ取付座（６９）と爪ケース（３６）に固設する前記カム軸（５０）のボス（７０）と間に、回動規制バネである捩りコイルバネ（７１）を張設して、常時はコイルバネ（７１）のバネ力で爪ケース（３６）の側面に一体連結する位置固定部材（７２）の調節ボルト（７３）をバネ取付座（６９）のストッパ（７４）に当接させて、爪ケース（３６）を爪ケース軸（３７）に一体的に連結するように構成している。
【００１５】
そして、前記爪ケース（３６）の外周で苗取出爪（２３）とは反対方向側にローラ軸（７５）を介しガイドローラ（７６）を設けると共に、ローラガイド面（７７ａ）に前記ローラ（７６）を転接させて案内する爪ガイド（７７）を苗取出爪（２３）と爪ケース（３６）間でロータリケース（３４）の駆動軸（３５）より前方位置に配設するもので、シャーシフレーム（１７）の前端側を固設する横フレーム（７８）にブラケット（７９）を介し爪ガイド（７７）を固定させて、図１２に示す如く、ロータリケース（３４）の１回転中ローラ（７６）と爪ガイド（７７）とが非接触のとき爪ケース軸（３７）と爪ケース（３６）とを一体連結状態とさせて爪ケース（３６）の苗取出位置近傍ではプラネタリギヤ（４０）の回転による同図２点鎖線に示す如き軌跡（Ａ１）に沿った苗取出爪（２３）の先端を上向きとした苗取出し動作を行うと共に、ローラ（７６）が爪ガイド（７７）に接触しガイド面（７７ａ）に沿って下動するとき同図点線に示す如き軌跡（Ａ２）に沿った苗取出爪（２３）の先端を下向きとした苗植付爪（２５）に対する苗受継ぎ動作を行うように構成している。このように２つの軌跡（Ａ１）（Ａ２）の合成によって形成される運動軌跡（Ａ）に沿って苗取出爪（２３）が上下に移動するとき、ロータリケース（３４）と爪ケース（３６）の相対位置の変化によって爪体（２３ａ）（２３ｂ）を開閉させ、苗トレイ（２２）内への苗取出爪（２３）の突入時に爪体（２３ａ）（２３ｂ）を閉とさせて苗（Ｎ）を挾持する一方、苗取出爪（２３）を苗植付爪（２５）との受継ぎ位置まで下動させるとき爪体（２３ａ）（２３ｂ）を開とさせて苗（Ｎ）を下方に落下させるように構成している。
【００１６】
また、前記取出爪駆動軸（３５）は、ミッションケース（９）に連動連結する植付クラッチケース（８０）からの出力軸（８１）に駆動入力部である伝動チェン（８２）に連結させて、植付クラッチ（８３）のオン時に左右２組（２条分）の苗取出爪（２３）を同位相で駆動して、１つの苗トレイ（２２）より２条分のポット苗（Ｎ）の同時取出しを行うと共に、苗植付爪（２５）に同時受継ぎを行うように構成している。
【００１７】
さらに、前記苗載台（２１）は、シャーシフレーム（１７）に固設する左右サイドフレーム（８４）間のガイドレール（８５）と横送り駆動軸（８６）に左右往復動自在に支持させると共に、苗載台（２１）に縦送り駆動軸（８７）を介し支持する駆動スプロケット（８８）と、遊転軸（８９）を介し支持する遊転スプロケット（９０）間に張架する縦送りチェン（９１）の所定間隔毎の縦送りピンを苗トレイ（２２）のポット底部間に掛合させて、苗載台（２１）が左右移動終端に到達したとき縦送り軸（９２）の縦送りカム（９３）を介して苗トレイ（２２）を１ピッチ分縦送りするように構成している。
【００１８】
また、図５、図７に示す如く、前記植付クラッチ（８３）は２つの苗取出爪（２３）が苗取軌跡（Ａ）の上側位置で、苗トレイ（２２）に接近する側の爪（２３）が苗トレイ（２２）内に突入する直前位置のとき切動作可能に設けたもので、植付クラッチ（８３）の切時に苗載台（２１）から苗トレイ（２２）の取外しや苗載台（２１）に苗トレイ（２２）の挿入供給作業などを容易に行うことを可能とさせるように構成している。
【００１９】
また、図８、図１５に示す如く、一方の苗取出爪（２３）が苗トレイ（２２）に突入して苗（Ｎ）を上方に取出す苗取り動作を行うとき、１８０度位相の異なる他方の苗取出爪（２３）は一方の苗取出爪（２３）と交差しこの上方を通過する状態となるため、左右爪体（２３ａ）（２３ｂ）の上端側間には他方の苗取出爪（２３）が通過するのに必要な空間（９４）を形成させて、小さな苗取軌跡（Ａ）上で１８０度位相の異なる２つの苗取出爪（２３）が支障なく苗取動作を行うように構成している。
【００２０】
上記からも明らかなように、苗取出爪（２３）の運動軌跡（Ａ）はプラネタリギヤ（４０）の回転で爪ケース（３６）を首振りさせて図１２の２点鎖線に示す如き爪（２３）先端を上向きとさせる、側面視で前後方向の軌跡（Ａ１）と、プラネタリギヤ（４０）による爪ケース（３６）の首振り中に爪ガイド（７７）によって爪ケース（３６）の動きを一部規制して得る図１２の点線に示す如き、爪（２３）先端を下向きとする縦方向の軌跡（Ａ２）との合成によって形成したもので、ロータリケース（３４）の回転中心となる駆動軸（３５）のラインより上方側に苗トレイ（２２）の苗取出部を設け、駆動軸（３５）より上方側で軌跡（Ａ１）に沿う苗取り動作を行わせてロータリケース（３４）の回転中苗トレイ（２２）の苗とロータリケース（３４）とが干渉するなどの不都合を防止すると共に、苗植付爪（２５）に対しては前記ガイド（７７）によって苗植付爪（２３）の先端を略垂直下向きに姿勢を変更させて確実な苗の受継ぎを行うものである。
【００２１】
また、苗取出爪（２３）の苗取動作中にあっては、爪（２３）の開閉と苗押出部材（５８）の上下動が１つの開閉カム（４２）によって行われるもので、図１７に示す如く開閉カム（４２）のカム面（４２ａ）の凹部に従動カム（４８）の開閉カム部（４８ａ）を突入させるとき、苗取出爪（２３）を開、苗押出部材（５８）を最下動位置とさせ、この状態より図１８に示す如く従動カム（４８）の開閉カム部（４８ａ）がカム面（４２ａ）の凸部に移行するとき苗取出爪（２３）を開から閉、苗押出部材（５８）を下から上へと動作させて苗トレイ（２２）内の苗（Ｎ）を苗取出爪（２３）に挾持して苗取りを行う一方、図１９、図２０に示す如く苗取出爪（２３）の最下動位置で従動カム（４８）の開閉カム部（４８ａ）がカム面（４２ａ）の凸部より凹部に移行するとき、苗取出爪（２３）を閉より開、苗押出部材（５８）を上から下へと動作させて苗取出爪（２３）に挾持した苗（Ｎ）の放出を行うものである。このように１つの開閉カム（４２）で爪（２３）の開閉と苗押出部材（５８）の上下動をタイミング良好に行うことができると共に、カム２枚分のスペースも必要なく構成簡潔にして爪ケース（３６）内にコンパクトに組込可能にできる。
【００２２】
図２１乃至図２８に示す如く、前記ミッションケース（９）左右両側の植付駆動ケース（１９）内側にそれぞれ取付ける単一のロータリケース（９５）の両端側に２つの苗植付爪（２５）を設けるもので、前記駆動ケース（１９）の植付駆動軸（９６）に一体的にロータリケース（９５）を取付け、ミッションケース（９）からの出力を駆動ケース（１９）内の駆動チェン（９７）を介し植付駆動軸（９６）に伝達してロータリケース（９５）を回転させると共に、該ケース（９５）内の駆動軸（９６）にサンギヤ（９８）を遊嵌させ、サンギヤ（９８）を位相調節板（９９）を介し位相調節自在に植付駆動ケース（１９）に固定させ、サンギヤ（９８）に小径のアイドルギヤ（１００）を介しプラネタリギヤである遊星ギヤ（１０１）を常噛させ、ロータリケース（９５）にアイドルギヤ（１００）のギヤ軸（１０２）を、またロータリケース（９５）の固定ケース軸（１０３）に遊星ギヤ（１０１）をそれぞれ回転自在に支持させ、前記サンギヤ（９８）と遊星ギヤ（１０１）を同一歯数の伝達比が１のギヤ構成に設けて、ロータリケース（９５）の回転時にも遊星ギヤ（１０１）を定常姿勢に保つように構成している。
【００２３】
また、前記ケース軸（１０３）に小径の固定ギヤ（１０４）を一体的に取付け、該ギヤ（１０４）と同一歯数でギヤ（１０４）を中心とした１８０度対向位置でギヤ（１０４）に常噛させる２つの出力ギヤ（１０５）（１０６）と、前記ケース軸（１０３）を中心としてロータリケース（９５）に回転自在に支持するギヤケース（１０７）とを設け、遊星ギヤ（１０１）とギヤケース（１０７）との間に単一の固定ギヤ（１０４）と２つの出力ギヤ（１０５）（１０６）とを一列状に配設させ、２つの出力ギヤ（１０５）（１０６）の出力軸であるギヤ軸（１０８）（１０９）を遊星ギヤ（１０１）とギヤケース（１０７）に回転自在に支持させて、ロータリケース（９５）の１回転中に２つの出力ギヤ（１０５）（１０６）のギヤ軸（１０８）（１０９）をロータリケース（９５）の回転方向と逆方向に１回転させるように構成している。
【００２４】
そして、前記ギヤ軸（１０８）（１０９）に基端を固着するクランクアーム（１１０）（１１１）先端に前後アーム軸（１１２）（１１３）を固設し、前後アーム軸（１１２）（１１３）の基端を単一の連結板（１１４）の両端に遊嵌して、該連結板（１１４）によって前後アーム軸（１１２）（１１３）を一体的に連結させると共に、前記苗植付爪（２５）の前後爪体（２５ａ）（２５ｂ）を開閉する開閉筒軸（１１５）（１１６）をアーム軸（１１２）（１１３）先端側に回動自在に支持させ、前記ギヤ軸（１０８）（１０９）を中心としたクランクアーム（１１０）（１１１）の回転中も開閉筒軸（１１５）（１１６）を水平姿勢に保って、苗植付爪（２５）を常に略垂直姿勢で上下動させるように構成している。
【００２５】
また、前記筒軸（１１５）（１１６）外周に前後開閉アーム（１１７）（１１８）の中間部を固設させ、後開閉アーム（１１８）に突設する半円形突出部（１１９）と、前開閉アーム（１１７）に形成する半円形陥没部（１２０）とを係合連結させ、前後開閉アーム（１１７）（１１８）の上端側に形成する突出バネ座部（１２１）（１２２）間に圧縮バネ（１２３）を介設して、前後爪体（２５ａ）（２５ｂ）に閉方向のバネ力を付勢すると共に、後開閉アーム（１１８）の下端側に固設する結合部材（１２４）に突出長さ調節自在にストッパボルト（１２５）を取付け、前開閉アーム（１１７）の下端下方に延設する開閉部材（１２６）に前記バネ（１２３）力でストッパボルト（１２５）を当接させるとき前後爪体（２５ａ）（２５ｂ）の先端側を下向きとした定常姿勢で閉保持するように構成している。
【００２６】
さらに、前記後アーム軸（１１３）に爪開閉カム（１２７）を固設させると共に、前記開閉部材（１２６）に突出長さ調節自在に開閉ネジ部材（１２８）を取付け、苗植付爪（２５）の下動に連動して爪開閉カム（１２７）の外周カム面（１２７ａ）の凸部をネジ部材（１２８）先端に摺接させてネジ部材（１２８）を押し下げるときには、図２７矢印に示す如くアーム軸（１１２）（１１３）を中心として開閉アーム（１１７）（１１８）を回動させ爪体（２５ａ）（２５ｂ）を開放状態とさせて、爪体（２５ａ）（２５ｂ）内に保持する苗（Ｎ）を畝面（Ｍ）に放出するように構成している。
【００２７】
このように、ロータリケース（９５）の１回転中に該ケース（９５）の両端側に取付ける２つの苗植付爪（２５）を縦長の同一楕円植付軌跡（Ｂ）上で１８０度位相を異ならせて上下運動させるもので、図２４に示す如くロータリケース（９５）が横長姿勢となるとき、先端側を内方向に各クランクアーム（１１０）（１１１）を水平とさせて、２つの苗植付爪（２５）をケース（９５）中心部の略同一高さ位置で近接させ、図２３に示す如くロータリケース（９５）が縦長姿勢となるとき、先端側を外方向に各クランクアーム（１１０）（１１１）を起立させて、２つの苗植付爪（２５）の一方を植付軌跡（Ｂ）の最上動位置に位置させる一方、他方の苗植付爪（２５）を植付軌跡（Ｂ）の最下動位置に位置させるように構成している。
【００２８】
またこの場合、ロータリケース（９５）の植付駆動軸（９６）とケース軸（１０３）との間のロータリケース軸間距離をＥ、出力ギヤ（１０５）（１０６）のギヤ軸（１０８）（１０９）間のクランク軸間距離をＦ、クランクアーム（１１０）（１１１）のギヤ軸（１０８）（１０９）及びアーム軸（１１２）（１１３）間のクランクアーム長さをＧとするとき、Ｅ＞Ｇ＋Ｆ／２の関係を成立させるように設けて、図２４に示す如きロータリケース（９５）の水平時にはクランクアーム（１１０）（１１１）及び連結板（１１４）をロータリケース（９５）の駆動軸（９６）を中心とした水平中心ライン上に位置させて、前後の植付爪（２５）が最大近接するときにも、前後植付爪（２５）間には干渉を防止するのに必要な一定以上の隙間（Ｄ）（Ｄ＝２Ｅ−２Ｇ−Ｆ）を形成させて、単一のロータリケース（９５）にクランクアーム（１１０）（１１１）を介し２つの苗植付爪（２５）を取付けて同一軌跡上で１８０度位相を異ならせて苗植付動作を行うコンパクトな苗植付構造においても、２つの苗植付爪（２５）やクランクアーム（１１０）（１１１）などが相互に干渉することのない良好な植付けを可能とさせるように構成している。
【００２９】
このように、単一のロータリケース（９５）の両側に２つの苗植付爪（２５）を取付け、該ロータリケース（９５）の１回転中に２つの苗植付爪（２５）によって、同一植付軌跡（Ｂ）上で１８０度位相を異ならせて苗植付動作を行うように設けて、コンパクトな苗植付構造のもので従来より略２倍に植付速度を増速させた高速植付けを可能とさせるもので、ロータリケース（９５）の１回転中に２つの苗植付爪（２５）が相互に近接する状態のときにも、苗植付爪（２５）やクランクアーム（１１０）（１１１）など干渉することなくスムーズな植付けを行うものである。
【００３０】
また、ロータリケース（９５）の回転に連動して前後爪体（２５ａ）（２５ｂ）を開閉する開閉アーム（１１７）（１１８）及び開閉カムなど開閉機構（１２９）も、苗植付爪（２５）とクランクアーム（１１０）（１１１）間で苗植付爪（２５）の略前後中間に軽量且つコンパクトに配置させて、前後の苗植付爪（２５）が相互に近接するときにも開閉機構（１２９）同志の干渉を防止し、また苗植付爪（２５）が地面に突入するときも開閉機構（１２９）は地面との隙間を確保して苗植付爪（２５）の開閉精度を向上させることができる。
【００３１】
また、前記苗植付爪（２５）は左右爪体（２５ａ）（２５ｂ）の姿勢が常に略同一を維持させるように閉時にはストッパボルト（１２５）と開閉部材（１２６）によって定常閉姿勢を保つと共に、開時には開閉アーム（１１７）（１１８）によって前後爪体（２５ａ）（２５ｂ）を略同一量開いて、この苗植付爪（２５）による苗植付精度を向上させることができる。
【００３２】
さらに、前記アーム軸（１１２）（１１３）間を連結する連結板（１１４）を開閉アーム（１１７）（１１８）と開閉カム（１２７）との間に配設することによって、前後のアーム軸（１１２）（１１３）を一定に保ってこの支持剛性も向上させると共に、ストッパボルト（１２５）と開閉部材（１２６）間及び開閉アーム（１１７）（１１８）間相互の位置関係も精度を保って苗植付爪（２５）の開閉を高精度なものとさせることができる。
【００３３】
さらに、図２９に示す如く、前記苗取出爪（２３）の苗植付爪（２５）に対する苗放し位置は、苗取出爪（２３）の運動軌跡（Ａ）上の下降位置で、苗取出爪（２３）の前後姿勢変化の小さく且つ前後方向の速度変化が小さい（≒０）垂直軌跡（Ａ３）上の上位点（Ａ４）に設けて、苗放し後は爪（２３）の延長線上の略垂直放出方向（Ｃ）に苗（Ｎ）を放出落下させて苗植付爪（２５）に良好に苗（Ｎ）を受継ぎさせるように構成している。
【００３４】
また、前記苗取出爪（２３）の苗放し位置（Ａ４）近傍には苗（Ｎ）の中継ガイド（１３０）を配設するもので、図３０に示す如く中継ガイド（１３０）は、後方を開口とする平面視略半円形のガイド体（１３１）と、該ガイド体（１３１）の左右後端縁に一体的に固着させるゴム等柔軟材性の左右ガイド板（１３２）とを有し、横フレーム（７８）などに支持フレーム（１３３）を介してガイド体（１３１）を連結固定させると共に、左右ガイド板（１３２）の内端間に苗取出爪（２３）の通過する隙間（１３４）を形成して、苗取出爪（２３）の苗放し位置（Ａ４）で苗放出時には中継ガイド（１３０）によって放出方向（Ｃ）に良好に苗（Ｎ）を放出させて苗植付爪（２５）に対する苗（Ｎ）の受継性を向上させるように構成している。
【００３５】
さらに、苗取出爪（２３）のロータリケース（３４）は連続回転するのに対し、苗植付爪（２３）のロータリケース（９５）は隙間の調節を行うため間欠回転させ、ロータリケース（９５）の回転停止位置は２つの苗植付爪（２５）の何れもが土中より脱出したロータリケース（９５）の略横長姿勢位置とさせ、苗植付爪（２５）の苗受継ぎ位置となる運動軌跡（Ｂ）の上死点付近では、移動中の苗植付爪（２５）に苗（Ｎ）の受継ぎを行う構成とするもので、本実施例の如き縦長の楕円軌跡（Ｂ）の場合上死点付近では苗植付爪（２５）の前後方向の動きが大きいため、受継ぎ時に苗（Ｎ）が爪（２５）の前後に接触するなどして受継性がわるい。そのため、前後方向の動きが小さく下降速度も遅い上死点より若干下降側に外れた下降開始地点（Ｂ１）を苗受継ぎ位置に設けて、前記苗取出爪（２３）の苗放し位置（Ａ４）と苗植付爪（２５）の苗受継ぎ位置（Ｂ１）のタイミングを合わせた苗受継ぎを行わせて苗受継ぎ精度を向上させるように構成している。
【００３６】
上記からも明らかなように、ロータリケース（３４）の１回転中同一軌跡（Ａ）上で１８０度位相を異ならせる２つ１組の苗取出爪（２３）によって１条分２株の苗取出しを行う苗供給装置（１６）と、ロータリケース（９５）の１回転中同一軌跡（Ｂ）上で１８０度位相を異ならせる２つ１組の苗植付爪（２５）によって１条分２株の苗植付けを行う苗植付装置（１８）とを設け、苗載台（２１）の前方に苗供給装置（１６）を配設させると共に、苗供給装置（１６）の下方に苗植付装置（１８）を配設させたことによって、苗載台（２１）より前方に苗取出爪（２３）により苗（Ｎ）を取出しこの下方の苗植付爪（２５）に受継いで苗（Ｎ）を植付けるこれら一連の植付作業をスムーズ且つ高精度なものとさせると共に、通常の株間条件で作業を行う場合車速を２倍に増速させた高速植付作業を容易に可能とさせて作業能率を向上させることができる。
【００３７】
また、苗取出爪（２３）のロータリケース（３４）の回転方向を左側面視反時計方向に設けて、苗取出爪（２３）で苗載台（２１）より苗取出し後は、ロータリケース（３４）の回転で苗載台（２１）より苗取出爪（２３）を迅速に離反させて、苗載台（２１）に取出し苗（Ｎ）の茎葉部が絡み付くなどの不都合を防止して苗（Ｎ）の取出し精度を向上させることができる。
【００３８】
また、ロータリケース（３４）の１回転中２つ１組の苗取出爪（２３）によって１８０度位相を異ならせて苗載台（２１）より１条分２株の苗（Ｎ）を取出す苗供給装置（１６）と、ロータリケース（９５）の１回転中１８０度位相を異ならせる２つ１組の苗植付爪（２５）によって苗取出爪（２３）からの苗（Ｎ）を受継いで１条分２株の苗（Ｎ）を植付ける苗植付装置（１８）とを設け、苗取出爪（２３）の運転軌跡（Ａ）上の前後方向に爪姿勢の変化の小さい下降位置（Ａ４）で苗取出爪（２３）の苗（Ｎ）を苗植付爪（２５）に放出することによって、苗（Ｎ）の放出直後苗取出爪（２３）で苗（Ｎ）を押し倒すなどの不都合なく苗植付爪（２５）に適正姿勢を保って苗（Ｎ）を受継ぎ供給させて、通常作業より車速を略２倍に増速させた精度良好な高速植付作業を容易に可能とさせることができる。
【００３９】
さらに、苗取出爪（２３）の運動軌跡（Ａ）上における前後方向の速度差の小さい下降位置である垂直軌跡（Ａ３）上の上位点（Ａ４）で苗取出爪（２３）の苗（Ｎ）を苗植付爪（２５）に放出することによって、苗取出爪（２３）から略垂直の放出方向に苗（Ｎ）を正確に放出して、苗植付爪（２５）に確実且つ適正に苗（Ｎ）を受継ぎ供給させて、苗取出爪（２３）から苗植付爪（２５）に対する苗（Ｎ）の受継ぎ精度を向上させることができる。
【００４０】
また、苗植付爪（２５）の運動軌跡（Ｂ）上の前後方向に動きの小さい上昇位置（Ｂ１）で苗取出爪（２３）からの苗（Ｎ）を受継ぐことによって、苗植付爪（２５）の前後部に受継ぎ苗（Ｎ）などを接触させることのない苗取出爪（２３）から苗植付爪（２５）に対する姿勢良好な苗（Ｎ）の受継ぎを行って、通常作業より車速を略２倍に増速させた精度良好な高速植付作業を容易に可能とさせるものである。
【００４１】
さらに、苗植付爪（２５）の運動軌跡（Ｂ）を縦長の楕円軌跡に設けることによって、前後方向の動きの小さく昇降速度も遅い苗植付爪（２５）の縦長楕円軌跡（Ｂ）上の上昇位置（Ｂ１）で、苗取出爪（２３）からの苗（Ｎ）を適正且つ確実に受継いで、苗取出爪（２３）から苗植付爪（２５）に対する苗（Ｎ）の受継ぎ性を向上させることができる。
【００４２】
【発明の効果】
以上実施例から明らかなように本発明の請求項１においては、苗取出ロータリケース（３４）の１回転中に、２つ１組の苗取出爪（２３・２３）によって、１８０度位相を異ならせて苗載台（２１）より１条分２株の苗（Ｎ）を取出す苗取出部と、苗植付ロータリケース（９５）の１回転中に、１８０度位相を異ならせる２つ１組の苗植付爪（２５・２５）によって、前記苗取出爪（２３・２３）からの苗（Ｎ）を受継いで、１条分２株の苗を植付ける苗植付部とを設け、該苗取出爪（２３）は、前記苗取出ロータリケース（３４）の１回転中に、ローラ（７６）と爪ガイド（７７）のガイド面（７７ａ）とが非接触で、爪ケース（３６）の苗取出位置近傍で、苗取出爪（２３）の先端を上向きとして、機体前後方向に移動する運動軌跡（Ａ１）と、前記苗取出ロータリケース（３４）の１回転中に、該ローラ（７６）が該爪ガイド（７７）のガイド面（７７ａ）に接触して、下動する運動軌跡（Ａ２）との、合成によって形成される運動軌跡（Ａ）に沿って、苗取出爪（２３）が上下に移動すべく構成し、該苗取出爪（２３）の運動軌跡（Ａ）上の、機体前後方向に該苗取出爪（２３）の爪姿勢の変化の小さい下降位置（Ａ４）で、該苗取出爪（２３）の苗を苗植付爪（２５）に放出するように構成したものであるから、苗（Ｎ）の放出直後苗取出爪（２３）で苗(N) を押し倒すなどの不都合なく苗植付爪（２５）に適正姿勢を保って苗（Ｎ）を受継ぎ供給させて、通常作業より車速を略２倍に増速させた精度良好な高速植付作業を容易に可能とさせることができるものである。
【００４３】
請求項２においては、請求項１記載の野菜移植機において、前記苗取出爪（２３）の運動軌跡（Ａ）上における、機体前後方向の速度差の小さい下降位置（Ａ４）で、前記苗取出爪（２３）の苗を苗植付爪（２５）に放出するように構成したものであるから、苗植付爪（２５）に確実且つ適正に苗（Ｎ）を受継ぎ供給させて、苗取出爪（２３）から苗植付爪（２５）に対する苗（Ｎ）の受継ぎ精度を向上させることができるものである。
【図面の簡単な説明】
【図１】移植機の全体側面図。
【図２】移植機の全体平面図。
【図３】移植部の側面図。
【図４】移植部の平面説明図。
【図５】苗取出部の側面説明図。
【図６】苗取出部の平面説明図。
【図７】苗取出爪部の側面説明図。
【図８】苗取出爪部の交差説明図。
【図９】苗取出爪部の平面説明図。
【図１０】苗取出爪と開閉カムとの関係説明図。
【図１１】苗取出爪の動作説明図。
【図１２】苗取出爪の軌跡の説明図。
【図１３】苗取出爪の側面説明図。
【図１４】苗取出爪の動作説明図。
【図１５】苗取出爪の開状態を示す説明図。
【図１６】苗取出爪の閉状態を示す説明図。
【図１７】苗取出爪と開閉カムの開状態を示す説明図。
【図１８】苗取出爪と開閉カムの開から閉状態を示す説明図。
【図１９】苗取出爪と開閉カムの閉状態を示す説明図。
【図２０】苗取出爪と開閉カムの閉から開状態を示す説明図。
【図２１】苗植付爪のロータリケースの断面説明図。
【図２２】苗植付爪の駆動ギヤ部の説明図。
【図２３】ロータリケース回転中の垂直姿勢時の説明図。
【図２４】ロータリケース回転中の水平姿勢時の説明図。
【図２５】ロータリケース回転中の傾斜姿勢時の説明図。
【図２６】苗植付爪部の平面説明図。
【図２７】爪開閉機構の説明図。
【図２８】苗植付爪の駆動系の説明図。
【図２９】苗取出爪と苗植付爪間の苗受継ぎ説明図。
【図３０】中継ガイドの平面説明図。
【符号の説明】
（１６）苗供給装置（移植部）
（１８）苗植付装置（苗植付部）
（２１）苗載台
（２３）苗取出爪
（２５）苗植付爪
（３４）ロータリケース
（９５）ロータリケース
（Ａ）苗取出爪の運動軌跡
（Ａ４）下降位置（上位点）
（Ｎ）苗[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vegetable transplanting machine in which a vegetable seedling such as onion, leaf onion, and white onion is taken out from a seedling tray and planted in a field.
[0002]
[Problems to be solved by the invention]
Conventionally, seedlings taken out from a seedling tray of a seedling stand by one seedling picking nail are handed over to one seedling planting nail to plant one seedling, but there is a limit to the working speed of these nails. Because it cannot be fast, in the case of a short crop between planting stocks (8-10 cm) such as onions, it is necessary to slow down the vehicle speed (for example, around 0.2 m / s) to cope with short crops between planting stocks. There was an inconvenience that work efficiency was very bad.
[0003]
In the case of a structure in which the seedling from the seedling extraction claw is transferred to the seedling planting nail and planted, the seedling extraction claw immediately after the seedling extraction claw releases the seedling at the seedling transfer position with the seedling planting nail. When the posture changes, the seedlings released to the seedling planting nails are pushed by the seedling picking nails, making the seedling posture unstable, and seedling planting in an appropriate planting posture cannot be performed.
[0004]
[Means for Solving the Problems]
The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
According to claim 1, during one rotation of the seedling removal rotary case (34), one set of two seedling extraction claws (23, 23) has a phase difference of 180 degrees from the seedling mounting stand (21). By one set of seedling planting claws (25, 25) that make the phase different by 180 degrees during one rotation of the seedling extraction part that takes out two seedlings (N) and the rotary seedling planting case (95) And a seedling planting part for inheriting the seedlings (N) from the seedling extraction nails (23, 23) and planting two seedlings for one line, the seedling extraction nails (23) During one rotation of the extraction rotary case (34), the roller (76) and the guide surface (77a) of the claw guide (77) are not in contact with each other, and the seedling extraction claw ( 23) with the tip facing upward, Aircraft During one rotation of the movement locus (A1) moving in the front-rear direction and the seedling removal rotary case (34), the roller (76) comes into contact with the guide surface (77a) of the claw guide (77) and The seedling extraction claw (23) is configured to move up and down along the movement trajectory (A) formed by synthesis with the moving movement trajectory (A2), and the movement trajectory of the seedling extraction claw (23) ( A) Above, Aircraft The seedling extraction claw (23) is configured to release the seedling of the seedling extraction claw (23) to the seedling planting claw (25) at a lowered position (A4) where the change in the nail posture of the seedling extraction claw (23) is small in the front-rear direction. is there.
[0005]
In Claim 2, in the vegetable transplanter of Claim 1, on the movement locus | trajectory (A) of the said seedling extraction nail | claw (23), Aircraft The seedlings of the seedling extraction claws (23) are discharged to the seedling planting claws (25) at the lowered position (A4) where the speed difference in the front-rear direction is small.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an overall side view of the transplanter, FIG. 2 is an overall plan view thereof, FIG. 3 is an explanatory side view of the transplant portion, and FIG. 4 is an explanatory plan view of the transplant portion, in which (1) is an engine (2) (3) is a fixed frame that supports the body (1) to be slidable left and right on the front and rear slide frames (4) and (5), and (6) is the body (1) via the slide arm (7). (8) is a left and right rear wheel that is supported by a drive horizontal shaft (10) from a transmission case (9) so as to be swingable up and down via a left and right transmission case (11). Is a left and right front wheel supported on the front end side of the fixed frame (3) via an axle frame (13) so as to be swingable up and down, and (14) is connected via a swing shaft (15) on the rear end side of the fixed frame (3). Hydraulic spring that swings the front and rear wheels (12) and (8) up and down (16) is a seedling supply device which is a seedling extraction unit installed behind the airframe (1) via the chassis frame (17), and (18) is installed between the left and right rear wheels (8). A seedling planting device, which is a seedling planting part to be connected to the mission case (9) via the planting drive case (19), (20) is a pair of left and right pressure-reducing rollers for suppressing the heel surface (M), Take out one pot of seedling (N) from the seedling tray (22) on the seedling stand (21) that reciprocates left and right of the seedling supply device (16) with a chopstick-shaped seedling picking claw (23). The discharged pot seedling (N) is discharged and supplied to a hopper opening-type seedling planting claw (25) that moves up and down in conjunction with the multi-cutter (24) of the seedling planting device (18). 26) Planting seedlings (N) at regular intervals on the surface (M) of the aircraft (1) during operation As well as configured for implantation), and configured to perform such changes planting conditions positions by the left and right sliding adjustment of the machine body (1).
[0007]
In addition, (27) is a lifting lever for operating the swing cylinder (14) to raise and lower the body (1), (28) is a planting clutch lever for turning on and off the planting clutch, and (29) is a traveling speed. (30) is a slide adjustment lever for adjusting the position of the airframe (1) in the left-right direction. (31) is for turning the airframe (1) by stopping the driving of the left and right rear wheels (8). Left and right side clutch lever.
[0008]
As shown in FIG. 3 to FIG. 4, the seedling picking claw (23) and the seedling planting claw (25) are left and right with a certain distance from the seedling tray (22) of one seedling mounting stand (21). Are arranged in parallel and driven in the same phase, and two seedlings are taken from one seedling tray (22) and two seedlings are planted simultaneously, and each seedling extraction claw (23) and seedling planting claw (25) So that seedlings and seedlings are planted twice in one motion trajectory (A) (B) with a phase difference of 180 degrees on the same nail motion trajectory (A) (B) Provided, the seedling collection speed and the seedling planting speed are increased by a factor of approximately two to perform high-speed planting work.
[0009]
As shown in FIGS. 5 to 20, the seedling picking claw (23) is a rotary case in which the phase adjusting plate (33) is fixed to the fixing bracket (32) of the chassis frame (17) and is rotated at a constant speed in one direction. (34) is supported by the adjustment plate (33) via the take-out claw drive shaft (35), and the two claw cases (36) are positioned 180 degrees symmetrical to the rotary case (34) around the drive shaft (35). The base end claw case shaft (37) is attached, and the seedling extraction claw (23) is attached to the tip of the claw case (36).
[0010]
Further, the sun gear (38) is loosely fitted to the take-out pawl drive shaft (35) in the rotary case (34), and the sun gear (38) is fixed to the adjustment plate (33) so that the phase can be adjusted, and the sun gear (38). The idle gear (39) and the planetary gear (40) having the same number of teeth are supported in the rotary case (34) through the intermediate shaft (41) and the case shaft (37). Each gear (38) (39) (40) is provided on the inconstant speed gear, and the two planetary gears (40) are always meshed in a row and symmetrically with the central sun gear (38) via the two idle gears (39), so that the constant speed of the rotary case (34) is obtained. During one rotation, the same nail motion trajectory (A) is 180 degrees out of phase, and two seedlings (N) are alternately taken out from the seedling tray (22).
[0011]
Further, a claw opening / closing cam (42) for opening and closing the seedling picking claw (23) to the left and right is provided in the claw case (36), and the claw case shaft (37) is inserted through and the position of the rotary case (34) can be adjusted. The open / close cam (42) is connected to the drive cam shaft (43) fixed to the left and right sides of the seedling picking claw (23) with the open / close rods (44) (45) as the center at the tip of the L-shaped claw case (36). The open / close cam (42) is connected via a driven cam (48) and a swing plate (49) that opens and closes the claw bodies (23a) and (23b). The driven cam (48) has a proximal end fixed to the driven cam shaft (50) in the claw case (36), and the opening / closing cam portion (48a) on one side of the distal end is connected to the outer peripheral cam surface (42a) of the opening / closing cam (42). The rocking plate (49) is fixed to the shaft end of the camshaft (50) that protrudes to the outside of the claw case (36). 49) The adjustment screw shaft (51) is attached to the tip bent portion (49a) of the open / close arm (47a) so that the protruding height can be adjusted, and the screw shaft (47a) is bent to the other end of the open / close arm (47). 51), the lower end tip (51a) is configured to contact.
[0012]
The open / close arm (46) (47) is fixed to the open / close rod (44) (45), and the semicircular engagement protrusion (46a) formed on one arm (46) and the other arm (47). The semicircular engaging recess (47a) to be formed is engaged and connected, and a torsion coil spring (52) for opening the claw is interposed between one arm (46) and the claw case (36), and the other arm ( A bolt member (55) is attached to a nut member (54) fixed to the notch groove (53) of 47) so that the protruding height can be adjusted, and a stopper member (56) fixed to the outer surface of the claw case (36) is mounted. The head of the bolt member (55) is brought into contact with the bending stopper portion (56a) by the spring (52) force to open and hold the left and right claws (23a) (23b), while the opening / closing cam (42) Rotating the rocking plate (49) by rotation causes the tip (51a) of the screw shaft (51). In is configured such arm (47) to the right and left pawl body (23a) (23b) is closed when swinging to one quantitative downward against the spring (52) force performs clamping seedlings.
[0013]
Further, as shown in FIGS. 17 to 20, linear left and right seedling extruding members (58) for moving the tip ring-shaped portions (57) loosely on the outer ends of the left and right claws (23a) and (23b) to move up and down. It is provided and attached to the L-shaped seedling extruding operation member (59) outside the nail case (36). The seedling extruding operation member (59) is connected to the upper ends of the left and right seedling extruding members (58) through the shaft (60) on one end side. Left and right seedling extrusion operation plates (61) and (62) are connected to each other, the other ends of the left and right operation plates (61) and (62) are connected to each other by a horizontal axis (63), and the nail case (36) side A substantially intermediate portion of the operation plate (62) is rotatably supported by the claw case (36) via the rotation operation shaft (64), and the operation plate (62) and the stopper member ( 56) between the spring pressure adjustment attachment portion (56b) and the seedling pushing member (58). And it is interposed a torsion coil spring (65) for urging the direction of the spring force that. The operation shaft (64) is fixedly provided with a pusher driven cam (66) slidably in contact with a seedling pusher cam portion (48b) formed on the other end of the driven cam (48), and the open / close cam (42). When the seedling picking claw (23) is opened by the rotation of the seedling, the seedling pushing member (58) is moved downward via the driven cams (48) (66) and the operation plates (61) (62). The seedling (N) is extruded from (23).
[0014]
The claw case shaft (37) is provided integrally with the planetary gear (40) so as to be freely rotatable with respect to the drive cam shaft (43), and the drive cam shaft (43) is provided with a cylindrical shaft (67) and a boss member ( 68) and a spring mounting seat (69) fixed to the shaft end of the case shaft (37) on the outer periphery of the boss member (68) as shown in FIG. A torsion coil spring (71), which is a rotation restricting spring, is stretched between the boss (70) of the cam shaft (50) fixed to the claw case (36). Then, the adjustment bolt (73) of the position fixing member (72) that is integrally connected to the side surface of the claw case (36) is brought into contact with the stopper (74) of the spring mounting seat (69), so that the claw case (36) is brought into contact with the claw case. The shaft (37) is integrally connected.
[0015]
A guide roller (76) is provided on the outer periphery of the claw case (36) on the opposite side of the seedling picking claw (23) via a roller shaft (75), and the roller (76) is provided on a roller guide surface (77a). The claw guide (77) that is guided by rolling is disposed between the seedling extraction claw (23) and the claw case (36) at a position forward of the drive shaft (35) of the rotary case (34). A claw guide (77) is fixed to a horizontal frame (78) fixed to the front end side of the frame (17) via a bracket (79), and as shown in FIG. 76) and the claw guide (77) are not in contact with each other, the claw case shaft (37) and the claw case (36) are integrally connected, and the planetary gear (40) of the claw case (36) is in the vicinity of the seedling removal position. 2 points in the figure by rotation The seedling extraction operation is performed with the tip of the seedling extraction claw (23) facing upward along the locus (A1) as shown by the line, and the roller (76) contacts the claw guide (77) along the guide surface (77a). The seedling inheriting operation is performed for the seedling planting claw (25) with the tip of the seedling picking claw (23) downward along the locus (A2) as shown by the dotted line in FIG. . When the seedling picking claw (23) moves up and down along the movement trajectory (A) formed by combining the two trajectories (A1) and (A2), the rotary case (34) and the claw case (36) The nail bodies (23a) and (23b) are opened and closed by the change in the relative position of the nail, and the nail bodies (23a) and (23b) are closed when the seedling extraction claws (23) enter the seedling tray (22). N), while holding the seedling extraction claw (23) down to the position where it is transferred to the seedling planting claw (25), the nail bodies (23a) (23b) are opened and the seedling (N) is moved downward. It is configured to be dropped.
[0016]
The take-out pawl drive shaft (35) is connected to the output shaft (81) from the planting clutch case (80) linked to the transmission case (9) to the transmission chain (82) as a drive input unit. When the planting clutch (83) is turned on, two sets of left and right (two strips) seedling picking claws (23) are driven in the same phase, and two seedlings of pot seedlings (N) from one seedling tray (22) Are simultaneously taken out, and at the same time, the seedling planting claws (25) are simultaneously inherited.
[0017]
Further, the seedling stage (21) is supported by the guide rail (85) between the left and right side frames (84) fixed to the chassis frame (17) and the lateral feed drive shaft (86) so as to be freely reciprocated left and right. The vertical feed chain stretched between the drive sprocket (88) supported on the seedling stage (21) via the vertical feed drive shaft (87) and the idle sprocket (90) supported via the idle shaft (89). When the vertical feed pin at predetermined intervals (91) is engaged between the pot bottoms of the seedling tray (22), the vertical feed cam of the vertical feed shaft (92) when the seedling mounting base (21) reaches the end of the left and right movement The seedling tray (22) is vertically fed by one pitch via (93).
[0018]
Further, as shown in FIGS. 5 and 7, the planting clutch (83) has two claws on the side close to the seedling tray (22) when the two seedling picking claws (23) are positioned above the seedling picking locus (A). (23) is provided so that it can be turned off immediately before entering the seedling tray (22). When the planting clutch (83) is turned off, the seedling tray (22) can be removed from the seedling stand (21). It is configured so that the seedling tray (22) can be easily inserted and supplied to the seedling stage (21).
[0019]
Further, as shown in FIGS. 8 and 15, when one seedling extraction claw (23) enters the seedling tray (22) and performs the seedling extraction operation for extracting the seedling (N) upward, Since the seedling picking claw (23) of the right side crosses one seedling picking claw (23) and passes above, the other seedling picking claw (23a) (23b) is placed between the upper ends of the left and right nail bodies (23a) (23b). 23) A space (94) necessary for passing through is formed so that the two seedling extraction claws (23) having a phase difference of 180 degrees on the small seedling extraction locus (A) can perform seedling operation without any trouble. It is composed.
[0020]
As apparent from the above, the movement trajectory (A) of the seedling picking claw (23) is obtained by rotating the planetary gear (40) and swinging the claw case (36) as shown by a two-dot chain line in FIG. ) A part of the movement of the claw case (36) by the claw guide (77) while swinging the claw case (36) by the planetary gear (40) with the trajectory (A1) in the front-rear direction in a side view with the tip facing upward As shown by the dotted line in FIG. 12, which is obtained by regulation, it is formed by combining with the vertical locus (A2) with the tip of the claw (23) facing downward, and the drive shaft (the rotation center of the rotary case (34) ( 35) The seedling extraction part of the seedling tray (22) is provided above the line of 35), and the rotary case (34) is rotating by performing the seedling removal operation along the locus (A1) above the drive shaft (35). Seedling and rotary of seedling tray (22) The guide (77) makes the tip of the seedling planting claw (23) to be substantially vertically downward with respect to the seedling planting claw (25). The seedlings are reliably transferred and changed.
[0021]
Further, during the seedling removing operation of the seedling picking claw (23), the opening and closing of the claw (23) and the vertical movement of the seedling pushing member (58) are performed by one opening and closing cam (42). When the opening / closing cam portion (48a) of the follower cam (48) is inserted into the recess of the cam surface (42a) of the opening / closing cam (42), the seedling picking claw (23) is opened and the seedling pushing member (58) is opened. When the open / close cam portion (48a) of the driven cam (48) moves to the convex portion of the cam surface (42a) as shown in FIG. 18, the seedling picking claw (23) is closed from the open position. The seedling extruding member (58) is moved from the bottom to the top, and the seedling (N) in the seedling tray (22) is held by the seedling extraction claw (23) to remove the seedling, while FIGS. As shown, the open / close cam portion (48a) of the driven cam (48) is at the cam surface (42) at the lowest position of the seedling picking claw (23). ), When the seedling extraction claw (23) is opened from the closed position and the seedling extruding member (58) is operated from the top to the bottom to hold the seedling extraction nail (23). Release. In this way, the opening and closing of the claw (23) and the vertical movement of the seedling pushing member (58) can be performed with good timing with one opening and closing cam (42), and the structure is simplified without requiring space for two cams. The nail case (36) can be compactly assembled.
[0022]
As shown in FIGS. 21 to 28, two seedling planting claws (25) are provided at both ends of a single rotary case (95) attached to the inside of the transmission case (19) on both the left and right sides of the transmission case (9). The rotary case (95) is integrally attached to the planting drive shaft (96) of the drive case (19), and the output from the transmission case (9) is sent to the drive chain (19) in the drive case (19). 97) is transmitted to the planting drive shaft (96) to rotate the rotary case (95), and the sun gear (98) is loosely fitted to the drive shaft (96) in the case (95). ) Is fixed to the planting drive case (19) through the phase adjusting plate (99) so that the phase can be freely adjusted, and the planetary gear (101), which is a planetary gear, is always connected to the sun gear (98) through the small-diameter idle gear (100). The rotary gear (95) is rotatably supported by the gear shaft (102) of the idle gear (100), and the fixed gear shaft (103) of the rotary case (95) is rotatably supported by the sun gear. (98) and the planetary gear (101) are provided in a gear configuration having the same number of teeth and a transmission ratio of 1, and the planetary gear (101) is maintained in a steady posture even when the rotary case (95) rotates. .
[0023]
Further, a small-diameter fixed gear (104) is integrally attached to the case shaft (103), and the same number of teeth as the gear (104) is attached to the gear (104) at a position 180 degrees centered on the gear (104). There are provided two output gears (105) and (106) that are always engaged, and a gear case (107) that is rotatably supported by the rotary case (95) around the case shaft (103), and the planetary gear (101) and the gear case. A single fixed gear (104) and two output gears (105) (106) are arranged in a line between the two (107) and the output shaft of the two output gears (105) (106). The gear shafts (108) and (109) are rotatably supported by the planetary gear (101) and the gear case (107), and the gear shafts of the two output gears (105) and (106) are rotated during one rotation of the rotary case (95). (10 ) (Constitute 109) so that one is rotated in a direction opposite to the rotation direction of the rotary case (95).
[0024]
The front and rear arm shafts (112) and (113) are fixed to the distal ends of the crank arms (110) and (111), which are fixed to the gear shafts (108) and (109), and the front and rear arm shafts (112) and (113) are fixed. Of the single connecting plate (114), and the front and rear arm shafts (112) and (113) are integrally connected by the connecting plate (114). The open / close cylinder shafts (115) and (116) for opening and closing the front and rear claw bodies (25a) and (25b) of the 25) are rotatably supported on the distal ends of the arm shafts (112) and (113), and the gear shaft (108) ( 109), the open / close cylinder shafts (115) and (116) are maintained in a horizontal position while the crank arms (110) and (111) are rotated, and the seedling planting claws (25) are always moved up and down in a substantially vertical position. It is configured as follows.
[0025]
Further, an intermediate portion of the front and rear opening / closing arms (117) (118) is fixed to the outer periphery of the cylindrical shaft (115) (116), and a semicircular protruding portion (119) protruding from the rear opening / closing arm (118); The semi-circular depression (120) formed on the opening / closing arm (117) is engaged and connected, and compressed between the protruding spring seats (121) (122) formed on the upper end side of the front / rear opening / closing arms (117) (118). A spring (123) is interposed to urge the front and rear claws (25a) (25b) with a spring force in the closing direction, and to a coupling member (124) fixed to the lower end side of the rear opening / closing arm (118). When the stopper bolt (125) is attached so that the protrusion length can be adjusted, and the stopper bolt (125) is brought into contact with the opening / closing member (126) extending below the lower end of the front opening / closing arm (117) by the spring (123) force. Front and back nails (25a) (25b Are configured to be closed hold a steady position in which the downward distal end side of the.
[0026]
Further, a claw opening / closing cam (127) is fixedly attached to the rear arm shaft (113), and an opening / closing screw member (128) is attached to the opening / closing member (126) so as to adjust the projecting length. When the convex portion of the outer peripheral cam surface (127a) of the claw opening / closing cam (127) is brought into sliding contact with the tip of the screw member (128) in conjunction with the downward movement of the screw member (128), the screw member (128) is pushed down, as shown by the arrow in FIG. Thus, the open / close arms (117) and (118) are rotated around the arm shafts (112) and (113) to open the claws (25a) and (25b), and are held in the claws (25a) and (25b). The seedling (N) to be discharged is discharged to the heel surface (M).
[0027]
As described above, during one rotation of the rotary case (95), the two seedling planting claws (25) attached to both ends of the case (95) are moved 180 degrees on the same vertically long elliptical planting locus (B). As shown in FIG. 24, when the rotary case (95) is in a horizontally long posture, the crank arms (110) and (111) are horizontally placed with the tip side inward, as shown in FIG. When the planting claws (25) are brought close to each other at substantially the same height position at the center of the case (95) and the rotary case (95) is in the vertically long posture as shown in FIG. 110) (111) is erected, and one of the two seedling planting claws (25) is positioned at the most moving position of the planting locus (B), while the other seedling planting claws (25) are placed in the planting locus. (B) It is comprised so that it may be located in the lowest movement position.
[0028]
Also, in this case, the distance between the rotary case shafts between the planting drive shaft (96) of the rotary case (95) and the case shaft (103) is E, and the gear shaft (108) of the output gear (105) (106) ( 109) is a distance between the crankshafts, and G is a crank arm length between the gear shafts (108) and (109) and the arm shafts (112) and (113) of the crank arms (110) and (111). > G + F / 2 is established, and when the rotary case (95) as shown in FIG. 24 is horizontal, the crank arms (110) (111) and the connecting plate (114) are connected to the drive shaft of the rotary case (95). Necessary for preventing interference between the front and rear planting claws (25) even when the front and rear planting claws (25) are located closest to each other on the horizontal center line centered on (96). More than a certain gap ( ) (D = 2E-2G-F), and two seedling planting claws (25) are attached to the single rotary case (95) via the crank arms (110) (111) on the same locus. Even in a compact seedling planting structure in which the seedling planting operation is performed with a phase difference of 180 degrees, the two seedling planting claws (25) and the crank arms (110) (111) do not interfere with each other. It is configured to enable easy planting.
[0029]
In this manner, two seedling planting claws (25) are attached to both sides of a single rotary case (95), and the two seedling planting claws (25) are identical during one rotation of the rotary case (95). The planting trajectory (B) is provided so that the seedling planting operation is performed with a phase difference of 180 degrees, and the planting speed is increased approximately twice as much as the conventional with a compact seedling planting structure. Planting is possible, and even when the two seedling planting claws (25) are close to each other during one rotation of the rotary case (95), the seedling planting claws (25) and the crank arm (110 ) (111) or the like for smooth planting without interference.
[0030]
In addition, an open / close arm (117) (118) that opens and closes the front and rear claws (25a) (25b) in conjunction with the rotation of the rotary case (95) and an open / close mechanism (129) such as an open / close cam are also provided. ) And the crank arm (110) (111) between the front and rear seedling planting claws (25) in a lightweight and compact manner, and when the front and rear seedling planting claws (25) are close to each other, they can be opened and closed. The mechanism (129) prevents mutual interference, and also when the seedling planting claw (25) enters the ground, the opening / closing mechanism (129) secures a clearance with the ground to open and close the seedling planting claw (25). Can be improved.
[0031]
Further, when the seedling planting claw (25) is closed so that the postures of the left and right claw bodies (25a) and (25b) are always kept substantially the same, the stopper bolt (125) and the opening / closing member (126) maintain a normally closed posture. At the time of opening, the front and rear claws (25a) and (25b) are opened by substantially the same amount by the open / close arms (117) and (118), and the seedling planting accuracy by the seedling planting claws (25) can be improved.
[0032]
Further, by arranging a connecting plate (114) for connecting the arm shafts (112) and (113) between the open / close arms (117) and (118) and the open / close cam (127), the front and rear arm shafts ( 112) (113) is kept constant to improve the supporting rigidity, and the positional relationship between the stopper bolt (125) and the opening / closing member (126) and between the opening / closing arms (117) (118) is also maintained with high accuracy. The planting claw (25) can be opened and closed with high accuracy.
[0033]
Furthermore, as shown in FIG. 29, the seedling release position of the seedling extraction claw (23) with respect to the seedling planting claw (25) is a descending position on the movement locus (A) of the seedling extraction claw (23), and the seedling extraction claw (23) is provided at the upper point (A4) on the vertical locus (A3) with a small change in front and back posture and a small change in velocity in the front and rear direction (≈0). The seedling (N) is discharged and dropped in the vertical release direction (C), and the seedling (N) is successfully inherited by the seedling planting claw (25).
[0034]
In addition, a relay guide (130) for the seedling (N) is disposed in the vicinity of the seedling release position (A4) of the seedling extraction claw (23), and the relay guide (130) is located at the rear as shown in FIG. A substantially semicircular guide body (131) in plan view as an opening, and left and right guide plates (132) made of a flexible material such as rubber that are integrally fixed to the left and right rear edges of the guide body (131); The guide body (131) is connected and fixed to the horizontal frame (78) or the like via the support frame (133), and the gap (134) through which the seedling picking claw (23) passes between the inner ends of the left and right guide plates (132). When the seedling is released at the seedling release position (A4) of the seedling extraction claw (23), the seedling (N) is released in the release direction (C) by the relay guide (130) and the seedling planting claw (25 ) To improve the inheritance of seedlings (N)
[0035]
Further, while the rotary case (34) of the seedling picking claw (23) is continuously rotated, the rotary case (95) of the seedling planting claw (23) is intermittently rotated in order to adjust the clearance, and the rotary case (95 ) Rotation stop position is set to a substantially horizontal posture position of the rotary case (95) in which both of the two seedling planting claws (25) have escaped from the soil, and the seedling inheriting position of the seedling planting claws (25) In the vicinity of the top dead center of the motion trajectory (B), the seedling (N) is transferred to the moving seedling planting claw (25), and a vertically long elliptical trajectory (B In the case of), since the movement of the seedling planting claw (25) in the front-rear direction is large in the vicinity of the top dead center, the seedling (N) comes into contact with the front and back of the claw (25) at the time of inheritance. Therefore, a descending start point (B1) slightly deviating from the top dead center with a small forward and backward movement and a slow descending speed is provided at the seedling inheriting position, and the seedling release position (A4) of the seedling picking claw (23) is provided. ) And the seedling succession position (B1) of the seedling planting claw (25) are performed so that the seedling succession accuracy is improved.
[0036]
As is clear from the above, two seedlings for one line are removed by a pair of seedling picking claws (23) that are 180 degrees out of phase on the same locus (A) during one rotation of the rotary case (34). 2 stocks per line by a seedling feeding device (16) that performs the rotation and a pair of seedling planting claws (25) that are 180 degrees out of phase on the same locus (B) during one rotation of the rotary case (95) A seedling planting device (18) for performing seedling planting, and a seedling feeding device (16) disposed in front of the seedling mounting table (21), and a seedling planting device below the seedling feeding device (16) By arranging (18), the seedling (N) is taken out by the seedling picking claw (23) in front of the seedling mount (21), and is inherited by the lower seedling planting claw (25). ) Is a smooth and highly accurate planting process, and normal inter-stock conditions Fast planting work is increased to double the speed when working is easily possible thereby improving the working efficiency by.
[0037]
In addition, the rotational direction of the rotary case (34) of the seedling picking claw (23) is provided counterclockwise when viewed from the left side, and after the seedling picking claw (23) is picked up from the seedling placing stand (21), the rotary case ( 34) by rotating the seedling picking claw (23) quickly from the seedling stage (21) by rotating 34) to prevent inconveniences such as the stems and leaves of the seedling (N) being picked up from the seedling stage (21). The takeout accuracy of (N) can be improved.
[0038]
In addition, the seedlings (N) are taken out from the seedling stage (21) by shifting the phase by 180 degrees by one pair of seedling extraction claws (23) in one rotation of the rotary case (34). The seedling (N) from the seedling picking claw (23) is inherited by the feeding device (16) and two pairs of seedling planting claws (25) that are different in phase by 180 degrees during one rotation of the rotary case (95). And a seedling planting device (18) for planting 2 seedlings (N) per line, and a lowering position where the change of the nail posture is small in the front-rear direction on the driving locus (A) of the seedling extraction claw (23) By releasing the seedling (N) of the seedling extraction nail (23) to the seedling planting nail (25) in (A4), the seedling (N) is pushed down with the seedling extraction nail (23) immediately after the seedling (N) is released, etc. The seedlings (N) are handed over to the seedling planting claws (25) without any inconvenience, and the vehicle speed is increased approximately twice as much as normal work. Accuracy good high-speed planting operations were able to easily and be.
[0039]
Furthermore, the seedlings (N) of the seedling picking claw (23) at the upper point (A4) on the vertical trajectory (A3) which is a descending position where the speed difference in the front-rear direction is small on the motion trajectory (A) of the seedling picking nail (23). ) To the seedling planting nail (25), so that the seedling (N) is accurately released from the seedling extraction nail (23) in a substantially vertical release direction, so that the seedling planting nail (25) is reliable and appropriate. The seedling (N) can be handed over to the seedling and the seedling (N) can be handed over from the seedling picking claw (23) to the seedling planting claw (25).
[0040]
In addition, seedling planting is carried out by inheriting the seedling (N) from the seedling extraction claw (23) at the ascending position (B1) where the movement is small in the front-rear direction on the movement locus (B) of the seedling planting nail (25). The succession of the seedling (N) having a good posture with respect to the seedling planting nail (25) from the seedling extraction nail (23) without bringing the inherited seedling (N) into contact with the front and rear portions of the nail (25), This makes it possible to easily perform high-speed planting work with good accuracy by increasing the vehicle speed approximately twice as much as the normal work.
[0041]
Furthermore, by providing the motion trajectory (B) of the seedling planting claw (25) in a vertically long elliptical trajectory, on the vertical elliptical trajectory (B) of the seedling planting claw (25) that moves slowly in the front-rear direction and slows up and down. In the ascending position (B1), the seedling (N) from the seedling extraction claw (23) is properly and reliably inherited, and the seedling (N) is received from the seedling extraction claw (23) to the seedling planting claw (25). The seam can be improved.
[0042]
【The invention's effect】
As is apparent from the above embodiments, in claim 1 of the present invention, the phase of 180 degrees is different by one set of seedling extraction claws (23, 23) during one rotation of the seedling extraction rotary case (34). Set of two seedlings that take out 180 degrees of phase during one rotation of the seedling picking part that takes out two seedlings (N) for one line from the seedling mount (21) and the seedling planting rotary case (95) A seedling planting part for inheriting seedlings (N) from the seedling extraction claws (23, 23) and planting two seedlings for one line by the seedling planting claws (25, 25), The seedling extraction claw (23) is configured such that the roller (76) and the guide surface (77a) of the claw guide (77) are not in contact with each other during one rotation of the seedling extraction rotary case (34). In the vicinity of the seedling extraction position, the tip of the seedling extraction claw (23) faces upward, Aircraft During one rotation of the movement locus (A1) moving in the front-rear direction and the seedling removal rotary case (34), the roller (76) comes into contact with the guide surface (77a) of the claw guide (77) and The seedling extraction claw (23) is configured to move up and down along the movement trajectory (A) formed by synthesis with the moving movement trajectory (A2), and the movement trajectory of the seedling extraction claw (23) ( A) Above, Aircraft The seedling extraction claw (23) is configured to release the seedling of the seedling extraction claw (23) to the seedling planting claw (25) at a lowered position (A4) where the change in the nail posture of the seedling extraction claw (23) is small in the front-rear direction. Therefore, immediately after the seedling (N) is released, the seedling (N) is pushed down with the seedling picking nail (23), and the seedling (N) is handed over to the seedling planting nail (25) while maintaining an appropriate posture. Thus, it is possible to easily enable high-speed planting work with good accuracy in which the vehicle speed is increased approximately twice as much as the normal work.
[0043]
In claim 2 In the vegetable transplanter according to claim 1, on the movement locus (A) of the seedling extraction claw (23), Aircraft Since it is configured to release the seedling of the seedling extraction claw (23) to the seedling planting claw (25) at the lowered position (A4) where the speed difference in the front-rear direction is small, the seedling planting claw (25) The seedling (N) is reliably and properly transferred and supplied, and the accuracy of the seedling (N) transfer from the seedling extraction claw (23) to the seedling planting claw (25) can be improved.
[Brief description of the drawings]
FIG. 1 is an overall side view of a transplanter.
FIG. 2 is an overall plan view of the transplanter.
FIG. 3 is a side view of the transplanted part.
FIG. 4 is an explanatory plan view of a transplanted part.
FIG. 5 is an explanatory side view of a seedling extraction unit.
FIG. 6 is an explanatory plan view of a seedling extraction unit.
FIG. 7 is an explanatory side view of a seedling extraction claw portion.
FIG. 8 is a cross-sectional explanatory diagram of a seedling extraction claw portion.
FIG. 9 is an explanatory plan view of a seedling extraction claw portion.
FIG. 10 is a diagram illustrating the relationship between a seedling extraction claw and an opening / closing cam.
FIG. 11 is an operation explanatory view of a seedling extraction claw.
FIG. 12 is an explanatory diagram of a locus of a seedling extraction nail.
FIG. 13 is an explanatory side view of a seedling extraction claw.
FIG. 14 is an operation explanatory view of a seedling extraction claw.
FIG. 15 is an explanatory view showing an open state of a seedling extraction claw.
FIG. 16 is an explanatory view showing a closed state of a seedling extraction claw.
FIG. 17 is an explanatory view showing an open state of a seedling extraction claw and an opening / closing cam.
FIG. 18 is an explanatory view showing a state where the seedling extraction claw and the opening / closing cam are opened to closed.
FIG. 19 is an explanatory view showing a closed state of a seedling extraction claw and an opening / closing cam.
FIG. 20 is an explanatory view showing a state where the seedling extraction claw and the opening / closing cam are closed to open.
FIG. 21 is a cross-sectional explanatory view of a rotary case of a seedling planting claw.
FIG. 22 is an explanatory diagram of a drive gear portion of a seedling planting claw.
FIG. 23 is an explanatory view in a vertical posture during rotation of the rotary case.
FIG. 24 is an explanatory diagram in a horizontal posture during rotation of the rotary case.
FIG. 25 is an explanatory diagram of an inclined posture during rotation of the rotary case.
FIG. 26 is a plan view of a seedling planting claw.
FIG. 27 is an explanatory diagram of a claw opening / closing mechanism.
FIG. 28 is an explanatory diagram of a drive system for a seedling planting claw.
FIG. 29 is an explanatory diagram of seedling inheritance between a seedling extraction claw and a seedling planting claw.
FIG. 30 is an explanatory plan view of the relay guide.
[Explanation of symbols]
(16) Seedling supply device (transplant)
(18) Seedling planting device (seedling planting part)
(21) Seedling stand
(23) Seedling removal nails
(25) Nails with seedlings
(34) Rotary case
(95) Rotary case
(A) Movement trajectory of seedling removal nail
(A4) Lowering position (upper point)
(N) Seedling

Claims

During one rotation of the seedling removal rotary case (34), two pairs of seedlings (1 line) from the seedling stand (21) with a phase difference of 180 degrees by two pairs of seedling extraction claws (23, 23) N) The seedling picking claw (25.25) having a phase difference of 180 degrees during one rotation of the seedling picking portion for picking up and the seedling planting rotary case (95) 23/23), a seedling planting part for planting two seedlings for one line is provided, and the seedling picking claw (23) is provided in the seedling removing rotary case (34). During one rotation, the roller (76) and the guide surface (77a) of the claw guide (77) are not in contact with each other, and the tip of the seedling extraction claw (23) faces upward in the vicinity of the seedling extraction position of the claw case (36). as a moving path for moving the machine body front-rear direction (A1), during one rotation of the seedling taking out rotary case (34), said The seedlings are removed along the motion trajectory (A) formed by combining the motion trajectory (A2) with the roller (76) in contact with the guide surface (77a) of the claw guide (77). The nail (23) is configured to move up and down, and on the movement locus (A) of the seedling extraction claw (23), the lowering position where the change in the nail posture of the seedling extraction claw (23) is small in the longitudinal direction of the body (23) A vegetable transplanting machine configured to release the seedling of the seedling extraction nail (23) to the seedling planting nail (25) in A4).

The vegetable transplanting machine according to claim 1, wherein the seedling of the seedling extraction claw (23) is at a lowered position (A4) where the speed difference in the longitudinal direction of the machine body is small on the movement locus (A) of the seedling extraction claw (23). The vegetable transplanting machine is characterized in that it is configured so as to be discharged to the seedling planting nail (25).