JP3938819B2

JP3938819B2 - Vegetable transplanter

Info

Publication number: JP3938819B2
Application number: JP12550599A
Authority: JP
Inventors: 智洋竹山; 俊郎和田; 尚勝伊藤
Original assignee: Yanma Agricultural Equipment Co Ltd
Current assignee: Yanma Agricultural Equipment Co Ltd
Priority date: 1999-05-06
Filing date: 1999-05-06
Publication date: 2007-06-27
Anticipated expiration: 2019-05-06
Also published as: JP2000316325A

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、白ネギなど草丈の長い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】
従来このような、玉ネギなどのような草丈の長い野菜苗を苗取出爪によって取出、苗植付爪に受継いで圃場に植付ける移植構造にあっては、苗取出爪で苗トレイから１株分の苗を取出すときに、爪に苗の茎葉が絡んで引掛かったり茎葉が折れ曲がるなどして、苗取出爪から苗植付爪に苗を受継ぐときには適正な苗受継ぎが行われず受継ぎ不良となる不都合があった。
【０００３】
【課題を解決するための手段】
したがって本発明は、苗載台の苗トレイより苗取出爪によって苗を取出して植付けるようにした野菜移植機において、苗トレイの苗取出位置近傍の複数苗の苗取出爪方向への倒れをそれぞれ規制する複数の苗押え部材を設け、前記複数の苗押え部材は、側面視両脚部の上端側を後方に屈曲させて傾斜させた背面視略門形に形成され、前記両脚部上端の水平連結部である第１の押え部材、および前記両脚部の屈曲基端間に前記第１押え部材と平行に設けられる第２押え部材を備え、これら複数の苗押え部材を一体的に位置調節可能に設けて、苗トレイから苗取出爪によって苗を取出し時には、例えば苗トレイの取出位置及びこの上段位置の苗の茎葉を複数の苗押え部材によって苗取出爪から遠ざける状態にそれぞれ規制して、苗取出爪に取出苗の茎葉が絡み付いたり、取出し苗の茎葉にこの上段位置の苗の茎葉が絡み付くなどとした不都合を防止して、苗の取出し精度を向上させると共に、これら複数の苗押え部材を簡単な位置調節でもって、複数の苗押え部材を適正位置に保って、苗の取出し精度を容易に安定維持させるものである。
【０００４】
また、苗押え部材を圧着バネのバネ力でもって苗載台に位置調節自在に固定保持させて、別途調節のための工具類を必要とすることなく、操作容易に苗押え部材を位置調節して苗取出し精度を向上させるものである。
【０００５】
【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は同全体背面図、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）を介し装設する苗供給装置、（１８）は左右の後車輪（８）間で装設してミッションケース（９）に植付伝動ケース（１９）を介して連結させる苗植付装置、（２０ａ）（２０ｂ）は畝面（Ｍ）を鎮圧する左右１対の大径及び小径の鎮圧ローラである覆土輪であり、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。
【０００６】
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。
【０００７】
図５乃至図９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各２つ並設させ、同位相駆動して１つの苗トレイ（２２）から２条分の苗取りを行うと共に、同時２条の植付けを行うもので、前記シャーシフレーム（１７）側に連結する左右ケースブラケット（３２）（３２）にロータリ入力軸（３３）・ロータリケース（３４）・クランクアーム（３５）・取出アーム（３６）をそれぞれ介し２つの苗取出爪（２３）（２３）を左右対称に配設させ、ミッションケース（９）に入力軸（３７）を連動連結する植付クラッチケース（３８）の出力軸（３９）（４０）端に、左右のロータリ入力軸（３３）（３３）をチェン（４１）を介しそれぞれ連結させ、植付クラッチケース（３８）の植付クラッチ（３８ａ）の入時に左右２つの苗取出爪（２３）（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）の同時取出しを行って、取出し後植付爪（２５）との受継ぎ位置まで下向きに移動させるように構成している。
【０００８】
また、前記苗植付爪（２５）は、ミッションケース（９）に入力軸（４２）を連動連結する単一の伝動ケース（１９）の出力軸（４３）両端にロータリケース（４４）・クランクアーム（４５）・植付アーム（４６）をそれぞれ介して左右の苗植付爪（２５）を左右対称に取付けるもので、前記出力軸（４３）回りにロータリケース（４４）を回転させ、クランクアーム（４５）を介して昇降ガイドレール（４７）に沿って植付アーム（４６）を前後揺動させ乍ら昇降させ、植付爪（２５）を楕円形状の植付け軌跡で上下運動させると共に、開閉自在に分割された半円錐形状の２つの爪体（２５ａ）（２５ｂ）によって植付爪（２５）を形成し、ロータリケース（４４）の１回転中において植付爪（２５）が上昇したとき、前記取出爪（２３）から苗（Ｎ）を受取り、植付爪（２５）が下降したときクランクアーム（４５）のカム（４８）と植付アーム（４６）のロッド（４９）とのカム作用によって、各爪体（２５ａ）（２５ｂ）を前後に開動させて畝面（Ｍ）に開孔を形成させ、各爪体（２５ａ）（２５ｂ）内部の苗（Ｎ）を畝面（Ｍ）の開孔に落下させるように構成している。
【０００９】
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（５０）間のガイドレール（５１）と横送り駆動軸（５２）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（５３）を介し支持する駆動スプロケット（５４）と、遊転軸（５５）を介し支持する遊転スプロケット（５６）間に張架する縦送りチェン（５７）の所定間隔毎の縦送りピン（５７ａ）を苗トレイ（２２）のセル（２２ａ）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（５８）の縦送りカム（５９）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。
【００１０】
図８、図９にも示す如く、左右２つの苗植付爪（２５）（２５）と、これら左右２つの爪（２５）（２５）をそれぞれ駆動するロータリケース（４４）・クランクアーム（４５）・植付アーム（４６）など左右苗植付装置（１８ａ）（１８ｂ）を正面及び背面視で左右方向に左右対称に傾斜させるもので、前記クランクアーム（４５）の取付軸（６０）に遊星ギヤ（６１）・中間ギヤ（６２）を介し連結させるロータリケース（４４）の太陽ギヤ（６３）を、伝動ケース（１９）の左右フランジ体（６４）（６５）に着脱自在に傾斜させて固定させ、安全クラッチ（６６）を有して伝動ケース（１９）に略水平に支持する伝動ケース（１９）の出力軸（４３）両端に、ボール式自在継手（６７）を介してロータリケース（４４）の取付軸（６８）を傾斜姿勢で固定させ、伝動ケース（１９）の左右両側に太陽ギヤ（６３）及び取付軸（６８）を介し左右苗植付装置（１８ａ）（１８ｂ）を正面及び背面視で上部間隔巾を小、また下部間隔巾を大とさせるように一定角度（θ）（θ≒６°）傾けて連結するように構成している。
【００１１】
そして、例えば２００（横１０×縦２０）穴或いは２８８（横１２×縦２４）穴の苗トレイ（２２）の取出穴ピッチ（横１０のとき５、横１２のとき６穴のピッチ）に、左右２つの苗取出爪（２３）中心間の距離となる爪ピッチ（Ｔ）を一致させ、左右の苗植付爪（２５）の最上動時には左右の苗植付爪（２５）の間隔巾を爪ピッチ（Ｔ）に近づけて、苗取出爪（２３）から苗植付爪（２５）に対する苗（Ｎ）の受渡しを確実なものとさせると共に、左右の苗植付爪（２５）の植付位置となる爪最下動時には植付条間（Ｗ）（Ｗ＝２０ｃｍ）まで左右の苗植付爪（２５）の間隔巾を拡げて、適正条間で苗（Ｎ）を植付けるように構成している。
【００１２】
而して図３に示す如く、移植作業においては、１行程の植付作業で同時２条の植付けを行い、この植付け作業終了後機体を旋回させ２行程目の同時２条の植付けを行うことによって１畝面（Ｍ）上に４条分の苗の植付けが行われ、さらに機体（１）をスライドさせ既植の左右の各２条間に植付けを行うことによって１畝面（Ｍ）上に６条或いは８条など多条の植付けも可能とさせることができる。
【００１３】
また、同時２条の植付けによって苗載台（２１）の横送り量を小とさせて苗供給装置（１６）の全巾を縮小させることができると共に、植付けた苗（Ｎ）の条間（Ｗ）を常に一定に揃えることができ、また広巾畝においても機体（１）を最左側位置とすることによって、左後輪（８）後方の畝間の作業者位置より容易にハンドル（２６）操作を可能とさせることができて、このハンドル（２６）操作性を向上させることができる。
【００１４】
さらに、植付条間（Ｗ）より左右苗取出爪（２３）の苗取間隔巾（爪ピッチ（Ｔ））が小さく（Ｔ＜Ｗ）、苗取出爪（２３）の苗取中心と苗植付爪（２５）の苗植付中心とが左右方向に寸法（Ｅ）オフセットするこのような移植構造においても、苗取出爪（２３）と苗植付爪（２５）との受継間に別途苗中継ガイドなどの受継部材を設置する必要もなく、苗取出爪（２３）から苗植付爪（２５）に直接的に苗（Ｎ）を良好に受継ぎさせて、構造コンパクトな手段で植付精度を向上させることができる。
【００１５】
図１０乃至図１２に示す如く、前記苗載台（２１）の上部延長線上に略１枚分の苗トレイ（２２）を載せる延長苗台（６９）を折畳み自在に設けるもので、苗トレイ（２２）のセル（２２ａ）底部間に掛合させる縦送りピン（５７ａ）の掛合位置より上方に延長苗台（６９）を設け、該苗台（６９）を断面凵形に形成し内側苗載面（６９ａ）を平坦面に形成して走行作業中の苗継性を向上させると共に、苗載台（２１）上部に苗台（６９）の下端側部（６９ｂ）を回動支点軸（７０）を介して前方に折畳み自在に連結させて、移植作業以外の移動走行中などには延長苗台（６９）を前方に折畳んで作業者の前方視界を良好とさせるように構成している。
【００１６】
図１３、図１４にも示す如く、前記苗載台（２１）の苗取出位置近傍に苗（Ｎ）の茎葉（Ｈ）を位置規制する苗規制部材（７１）を設けるもので、苗規制部材（７１）は背面視略門形で、側面視両脚部の上端側を後方に屈曲させて傾斜させ、この上端の水平連結部を押え部材である第１押え棒（７２）に設け、且つ両脚部の屈曲基端間に第１押え棒（７２）と平行な押え部材である第２押え棒（７３）を設け、両脚部の下端側を１８０度に折曲げて中央に長孔（７４）を形成し、苗載台（２１）の側枠フレーム（７５）における縦フレーム（７５ａ）の下端左右側板（７６）にボルト（７７）を介し規制用取付板（７８）の下端側を固定させ、前記取付板（７８）の上端に規制部材（７１）の長孔（７４）を上下位置調節自在に上下調節軸（７９）（８０）を介し固定させ、苗取出位置の苗トレイ（２２）の苗（Ｎ）の茎葉（Ｈ）を前記第２押え棒（７３）でもって苗取出爪（２３）から遠ざける方向に案内する一方、苗取出しをする１段目より上方の２段目の苗トレイ（２２）の苗（Ｎ）の茎葉（Ｈ）を前記第１押え棒（７２）で１段目の苗（Ｎ）の茎葉（Ｈ）から遠ざける方向に案内して、前位置の第２押え棒（７３）では１段目の取出しをする苗（Ｎ）の茎葉（Ｈ）が取出爪（２３）に絡み付くのを、また後位置の第１押え棒（７２）では２段目の苗（Ｎ）の茎葉（Ｈ）が１段目の苗（Ｎ）の茎葉（Ｈ）に絡み付くのをそれぞれ規制するように構成している。
【００１７】
而して、苗トレイ（２２）より１段目の苗取出時には、苗（Ｎ）の茎葉（Ｈ）が苗取出爪（２３）方向に倒れ込み状態となって、爪（２３）の突入時に邪魔とさせたり茎葉（Ｈ）を折り曲げる不都合や、苗トレイ（２２）から苗（Ｎ）の引抜き時に爪（２３）に茎葉（Ｈ）を引掛けて、苗植付爪（２５）への苗受継ぎ不良となるなどの不都合を第２押え棒（７３）で防止すると共に、苗取出爪（２３）の苗トレイ（２２）より苗（Ｎ）を取出してから苗植付爪（２５）位置までの移動時には、２段目の苗（Ｎ）の茎葉（Ｈ）に取出し苗（Ｎ）の茎葉（Ｈ）が絡む不都合を第１押え棒（７２）で規制し、苗取出爪（２３）から苗（Ｎ）の脱落などのない苗植付爪（２５）に対する良好な苗（Ｎ）の受継ぎを行うように構成するものである。
【００１８】
また、下位置の調節軸（８０）のバネ座（８１）と取付板（７８）間に圧着バネ（８２）を介設させ、苗規制部材（７１）に接する調節軸（８０）の固定座金（８３）をバネ（８２）力で規制部材（７１）に圧接させることによって、苗規制部材（７１）の位置保持を図ると共に、バネ（８２）力に抗する苗規制部材（７１）の上下移動によって、第１及び第２押え棒（７２）（７３）一体の上下位置調節を行って、別途調節工具などを不要とさせた操作容易な第１及び第２押え棒（７２）（７３）の上下位置調節を可能とさせるように構成している。
【００１９】
図５、図１０、図１１、図１２、図１５に示す如く、前記苗載台（２１）の裏側で、前記側枠フレーム（７５）の左右縦フレーム（７５ａ）間で側枠フレーム（７５）の略上端と下端間に、苗取出後の空の苗トレイ（２２）の上面側を排出案内するトレイ排出ガイド部材（８４）を設けるもので、排出ガイド棒（８４）の左右縦ガイド棒（８４ａ）を左右縦フレーム（７５ａ）の内側で略平行に設け、左右縦フレーム（７５ａ）下端の固定板（８５）に軸（８６）及び枢着板（８７）を介して左右縦ガイド棒（８４ａ）の下端を支持させると共に、側枠フレーム（７５）の上端水平連結部（７５ｂ）に排出ガイド部材（８４）の上端部を支持させ、搬送チェン（５７）と縦ガイド棒（８４ａ）との隙間を下端より上端となる程大に設け、縦ガイド棒（８４ａ）の下端側で移動方向を反転させガイド棒（８４ａ）に沿って苗トレイ（２２）の上方への排出移動中においては、縦送りピン（５７ａ）より外れたセル（２２ａ）部を下方で掛合させる縦送りピン（５７ａ）によって上方に押し上げるように構成している。
【００２０】
また、図１５にも示す如く、遊転スプロケット（５６）上方で左右縦ガイド棒（８４ａ）間の略中央対向位置に、各セル（２２ａ）の底面側を排出案内するトレイ排出ガイド（８８）を設けて、縦ガイド棒（８４ａ）と排出ガイド（８８）との間に形成されるガイド隙間（８９）を通して苗トレイ（２２）を上方に押し上げて排出するように構成している。
【００２１】
前記排出ガイド（８８）は苗載台（２１）の裏面に縦板部（８８ａ）を固定させ、一定ガイド巾（Ｂ）を有する平坦ガイド板部（８８ｂ）の表面をセル（２２ａ）底面に接触させ、左右縦ガイド棒（８４ａ）と中央のガイド板部（８８ｂ）の３点支持によって苗トレイ（２２）の排出案内を行うもので、セル（２２ａ）の左右最大ピッチ（Ｐｍａｘ）よりガイド巾（Ｂ）を大（Ｂ≧Ｐｍａｘ）に設けて、苗トレイ（２２）略中央の少なくとも２つ以上のセル（２２ａ）底面をガイド板部（８８ｂ）で案内して常に安定良好な苗トレイ（２２）の排出を可能とさせるように構成している。
【００２２】
そして前記ガイド板部（８８ｂ）の下端及び上端を上方に折曲げて傾斜案内部（８８ｃ）（８８ｄ）に形成すると共に、下端案内部（８８ｃ）を遊転スプロケット（５６）近傍に、また上端案内部（８８ｄ）を縦ガイド棒（８４ａ）上端近傍に臨ませて、苗トレイ（２２）がスプロケット（５６）位置のチェン（５７）に巻き込まれるのを防止し、縦ガイド棒（８４ａ）に沿って移動するのを助長させ、縦ガイド棒（８４ａ）と苗載台（２１）の上端間に形成されるトレイ排出口（９０）では、トレイ（２２）の引抜き方向が排出ガイド（８８）によって限定されることのない容易なトレイ（２２）の引抜きを行って、確実なトレイ（２２）の回収を行うように構成している。
【００２３】
また前記ガイド板部（８８ｂ）と縦ガイド棒（８４ａ）の上下間の隙間（Ｓ）と、苗トレイ（２２）の高さ（Ｋ）とを通常は略同一（Ｓ≒Ｋ）に設けるものであるが、図１６に示す如く隙間（Ｓ）を高さ（Ｋ）より小さく（Ｓ＜Ｋ）設けて、ガイド板部（８８ｂ）を中心として左右の縦ガイド棒（８４ａ）で苗トレイ（２２）の左右両端側を押え込んで撓ませることによって、可撓性を有する合成樹脂製苗トレイ（２２）にあって撓ませる方向と直角方向（この場合上下縦方向）に硬直性（変形しにくい）を有して、前記排出口（９０）より高く離れた位置まで排出適正姿勢を保ったまま苗トレイ（２２）を押し上げて、この苗トレイ（２２）の回収を容易とさせることができるものである。またこの場合排出される苗トレイ（２２）とこの後方の操向ハンドル（２６）間に一定以上のスペースが確保できて各レバー（２７）（２８）（２９）（３０）などとの干渉も回避させることができる。
【００２４】
【発明の効果】
以上実施例から明らかなように本発明は、苗載台（２１）の苗トレイ（２２）より苗取出爪（２３）によって苗（Ｎ）を取出して植付けるようにした野菜移植機において、苗トレイ（２２）の苗取出位置近傍の複数苗（Ｎ）の苗取出爪（２３）方向への倒れをそれぞれ規制する複数の苗押え部材（７２）（７３）を設け、前記複数の苗押え部材（７２）（７３）は、側面視両脚部の上端側を後方に屈曲させて傾斜させた背面視略門形に形成され、前記両脚部上端の水平連結部である第１の押え部材、および前記両脚部の屈曲基端間に前記第１押え部材と平行に設けられる第２押え部材を備え、これら複数の苗押え部材（７２）（７３）を一体的に位置調節可能に設けたものであるから、苗トレイ（２２）から苗取出爪（２３）によって苗（Ｎ）を取出し時には、例えば苗トレイ（２２）の取出位置及びこの上段位置の苗（Ｎ）の茎葉（Ｈ）を複数の苗押え部材（７２）（７３）によって苗取出爪（２３）から遠ざける状態にそれぞれ規制して、苗取出爪（２３）に取出苗（Ｎ）の茎葉（Ｈ）が絡み付いたり、取出し苗（Ｎ）の茎葉（Ｈ）にこの上段位置の苗（Ｎ）の茎葉（Ｈ）が絡み付くなどとした不都合を防止して、苗の取出し精度を向上させると共に、これら複数の苗押え部材（７２）（７３）を簡単な位置調節でもって適正位置に保って、苗の取出し精度を容易に安定維持させることができる。
【００２５】
また、苗押え部材（７２）（７３）を圧着バネ（８２）のバネ力でもって苗載台（２１）に位置調節自在に固定保持させたものであるから、別途調節のための工具類を必要とすることなく、操作容易に苗押え部材（７２）（７３）を位置調節して苗の取出し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】移植機の全体背面図。
【図４】移植部の平面説明図。
【図５】移植部の側面説明図。
【図６】苗取出爪部の駆動説明図。
【図７】苗取出爪部の平面説明図。
【図８】苗植付装置の背面説明図。
【図９】苗植付爪駆動部の説明図。
【図１０】苗載台部の平面説明図。
【図１１】苗載台の平面説明図。
【図１２】排出ガイド部の側面説明図。
【図１３】苗規制部材の側面説明図。
【図１４】苗規制部材の背面説明図。
【図１５】排出ガイド部の説明図。
【図１６】排出ガイド部の変形説明図。
【符号の説明】
（２１）苗載台
（２２）苗トレイ
（２３）苗取出爪
（７２）（７３）苗押え棒（苗押え部材）
（８２）バネ
（Ｎ）苗[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vegetable transplanting machine in which a vegetable seedling having a long plant length such as onion, leaf leek, and white onion is taken out from a seedling tray and planted in a field.
[0002]
[Problems to be solved by the invention]
Conventionally, in a transplanting structure in which a long vegetable seedling such as an onion is taken out by a seedling picking nail and is transferred to a seedling planting nail and planted in a field, 1 When taking out the seedlings of the stock, the seedlings of the seedlings get caught in the nail and caught or the stems and leaves are bent. There was an inconvenience that resulted in poor joints.
[0003]
[Means for Solving the Problems]
Therefore, the present invention is a vegetable transplanter in which the seedlings are taken out from the seedling tray of the seedling stage by the seedling extraction claw and planted, and each of the seedlings in the vicinity of the seedling extraction position of the seedling tray is tilted in the direction of the seedling extraction claw. A plurality of seedling presser members to be controlled are provided , and the plurality of seedling presser members are formed in a substantially portal shape in a rear view in which the upper end sides of both leg parts in a side view are bent backward and inclined, and the upper ends of both leg parts are connected horizontally. And a second presser member provided in parallel with the first presser member between the bent base ends of the both leg parts , and the position of the plurality of seedling presser members can be adjusted integrally. When the seedling is taken out from the seedling tray by the seedling picking claw, for example, the seedling tray picking position and the stems and leaves of the seedling at the upper position are regulated to be separated from the seedling picking claw by a plurality of seedling holding members, respectively. Take out seedlings on nails Prevents inconveniences such as entanglement of the foliage and entanglement of the stems and leaves of the upper seedling with the stems and leaves of the extracted seedlings, improving the accuracy of taking out the seedlings. The plurality of seedling presser members are maintained at appropriate positions, and the seedling takeout accuracy is easily and stably maintained.
[0004]
In addition, the seedling holding member is fixed and held on the seedling stand by the spring force of the crimping spring so that the position of the seedling holding member can be adjusted freely, and the position of the seedling holding member can be adjusted easily without the need for additional adjustment tools. This improves the accuracy of seedling removal.
[0005]
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 overall rear view thereof, and FIG. 4 is an explanatory plan view of the transplantation portion. (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) slides the body (1) via the slide arm (7). A hydraulic slide cylinder to be operated, (8) is a left and right rear wheel supported on a drive horizontal shaft (10) from a transmission case (9) via a left and right transmission case (11) so as to be swingable up and down, and (12) Left and right front wheels 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) are front and rear wheels via a swing shaft (15) on the rear end side of the fixed frame (3). (12) Hydraulic swing that swings up and down (8) Linda, (16) is a seedling supply device installed through the chassis frame (17) behind the fuselage (1), and (18) is installed between the left and right rear wheels (8) in the transmission case (9). The seedling planting device to be connected via the planting transmission case (19), (20a) (20b) is a cover ring which is a pair of left and right large diameter and small diameter pressure reducing rollers for pressing 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 pot seedlings (N) at regular intervals on the surface (M) of the airframe (1) during operation Only with configured to perform (transplant), and configured to perform such changes planting conditions positions by the left and right sliding adjustment of the machine body (1).
[0006]
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.
[0007]
As shown in FIGS. 5 to 9, 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 base (21). The two are arranged side by side and driven in the same phase, so that two seedlings are removed from one seedling tray (22), and at the same time, two seedlings are planted and connected to the chassis frame (17) side. Two seedling picking claws (23) and (23) are inserted into the left and right case brackets (32) and (32) through the rotary input shaft (33), rotary case (34), crank arm (35), and picking arm (36), respectively. The left and right rotary input shafts (33) (33) are arranged on the output shaft (39) (40) end of the planting clutch case (38) which is arranged symmetrically and which interlocks the input shaft (37) to the mission case (9). 33) are connected to each other via chain (41). When the planting clutch (38a) of the planting clutch case (38) is engaged, the two right and left seedling picking claws (23) and (23) are driven in the same phase, and two pots are potted from one seedling tray (22). The seedlings (N) are taken out at the same time, and after taking out, the seedlings (N) are moved downward to the position where they are transferred to the planting claws (25).
[0008]
Further, the seedling claw (25) has a rotary case (44) and a crank at both ends of the output shaft (43) of a single transmission case (19) for interlockingly connecting the input shaft (42) to the transmission case (9). The left and right seedling planting claws (25) are mounted symmetrically via the arm (45) and the planting arm (46), respectively. The rotary case (44) is rotated around the output shaft (43), and the crank The planting arm (46) is swung back and forth along the lifting guide rail (47) via the arm (45) and moved up and down to move the planting claw (25) up and down along an elliptical planting locus, A planting claw (25) is formed by two semiconical claws (25a) and (25b) that are divided so as to be freely opened and closed, and the planting claw (25) is raised during one rotation of the rotary case (44). When the extraction claw (23 When the seedlings (N) are received and the planting claws (25) are lowered, the cam action between the cam (48) of the crank arm (45) and the rod (49) of the planting arm (46) causes each nail body ( 25a) (25b) is moved back and forth to form a hole in the heel surface (M), and the seedling (N) inside each nail body (25a) (25b) is dropped into the hole in the heel surface (M). It is configured as follows.
[0009]
Further, the seedling platform (21) is supported by the guide rail (51) between the left and right side frames (50) fixed to the chassis frame (17) and the lateral feed drive shaft (52) so as to freely reciprocate in the left and right directions, A vertical feed chain (54) stretched between a drive sprocket (54) supported on the seedling stage (21) via a longitudinal feed drive shaft (53) and an idle sprocket (56) supported via an idle shaft (55). 57) the vertical feed pins (57a) at predetermined intervals are hooked between the cell (22a) bottoms of the seedling tray (22), and the vertical feed shaft (58 The seedling tray (22) is vertically fed by one pitch via a vertical feed cam (59).
[0010]
As shown in FIGS. 8 and 9, two right and left seedling planting claws (25) and (25), and a rotary case (44) and a crank arm (45) for driving the two left and right claws (25) and (25), respectively. ) The right and left seedling planting devices (18a) and (18b) such as the planting arm (46) are tilted symmetrically in the left-right direction when viewed from the front and back, and are attached to the mounting shaft (60) of the crank arm (45). The sun gear (63) of the rotary case (44) connected via the planetary gear (61) and the intermediate gear (62) is removably inclined to the left and right flange bodies (64) (65) of the transmission case (19). A rotary case (via a ball-type universal joint (67) is attached to both ends of the output shaft (43) of the transmission case (19) which is fixed and supported by the transmission case (19) substantially horizontally with a safety clutch (66). 44) mounting shaft (6 ) Is fixed in an inclined position, and the left and right seedling planting devices (18a) and (18b) are arranged on the left and right sides of the transmission case (19) via the sun gear (63) and the mounting shaft (68). Are connected to each other at a constant angle (θ) (θ≈6 °) so that the width of the lower portion is small and the width of the lower space is increased.
[0011]
And, for example, to the extraction hole pitch (5 pitch for horizontal 10 and 6 pitch for horizontal 12) of seedling tray (22) of 200 (width 10 × length 20) or 288 (width 12 × length 24) hole, Match the nail pitch (T), which is the distance between the center of the two left and right seedling picking nails (23), and set the distance between the left and right seedling planting nails (25) when the left and right seedling planting nails (25) are moved to the maximum. Close to the nail pitch (T), to ensure the delivery of the seedling (N) from the seedling extraction claw (23) to the seedling planting claw (25), and to plant the right and left seedling planting nails (25) When moving the nail at the lowest position, widen the gap between the left and right seedling planting nails (25) to the spacing between the planting strips (W) (W = 20 cm), and plant the seedlings (N) between the appropriate strips. It is composed.
[0012]
Therefore, as shown in FIG. 3, in the transplanting operation, two strips are planted at the same time in the first stroke, and after completion of the planting operation, the aircraft is turned to perform two strips at the same time in the second stroke. 4 plants are planted on 1 ridge surface (M), and further, the aircraft (1) is slid and planted between each left and right 2 lanes on the existing ridge surface (M). It is also possible to plant multiple strips such as 6 or 8 strips.
[0013]
In addition, by simultaneously planting two strips, the lateral feed amount of the seedling mount (21) can be reduced to reduce the entire width of the seedling feeding device (16), and the planted seedlings (N) can be separated ( W) can always be kept constant, and the handle (26) can be operated more easily than the operator position between the left rear wheel (8) and the rear rear wheel by setting the fuselage (1) to the leftmost position even in a wide lance. This makes it possible to improve the operability of the handle (26).
[0014]
Furthermore, the width of seedling removal (nail pitch (T)) of the left and right seedling picking nails (23) is smaller (T <W) than the spacing between the planting strips (W), and the seedling center and seedling planting of the seedling picking nails (23) Even in such a transplant structure in which the center of seedling planting of the attached nail (25) is offset in the left-right direction (E), the seedling is separately provided between the seedling extraction nail (23) and the seedling planting nail (25). It is not necessary to install a relay member such as a relay guide, so that the seedling (N) can be transferred directly from the seedling extraction claw (23) directly to the seedling planting claw (25), and planted by a compact structure. Accuracy can be improved.
[0015]
As shown in FIG. 10 to FIG. 12, an extension seedling stand (69) on which an approximately one seedling tray (22) is placed on the upper extension line of the seedling mounting base (21) is foldably provided. 22) An extended seedling stand (69) is provided above the engaging position of the vertical feed pin (57a) to be engaged between the bottom portions of the cells (22a) of the cell (22a), and the seedling stand (69) is formed in a bowl shape in cross section to form an inner seedling mounting surface (69a) is formed on a flat surface to improve the seedling ability during the running operation, and the lower end side portion (69b) of the seedling stand (69) is placed on the top of the seedling placing stand (21). The extension seedling stand (69) is folded forward to improve the forward view of the operator during movement traveling other than transplanting work.
[0016]
As shown in FIGS. 13 and 14, a seedling regulating member (71) for regulating the position of the foliage (H) of the seedling (N) is provided in the vicinity of the seedling extraction position of the seedling mount (21). (71) has a substantially portal shape in a rear view, and the upper end sides of both leg portions in a side view are bent backward and inclined, and a horizontal connecting portion at the upper end is provided on a first presser bar (72) which is a pressing member, and both legs A second presser bar (73), which is a presser member parallel to the first presser bar (72), is provided between the bent base ends of the parts, and the lower end side of both leg parts is bent 180 degrees and a long hole (74) is formed in the center. And the lower end side of the regulation mounting plate (78) is fixed to the lower left and right side plates (76) of the vertical frame (75a) of the side frame (75) of the seedling mount (21) via bolts (77). A long hole (74) of the restricting member (71) is provided at the upper end of the mounting plate (78) so that the vertical position is adjustable. 9) Fixing via (80), the stem (N) of the seedling (N) in the seedling tray (22) at the seedling extraction position is moved away from the seedling extraction claw (23) with the second presser bar (73). On the other hand, the stems (H) of the seedling (N) in the second stage seedling tray (22) above the first stage for taking out the seedling are guided by the first presser bar (72) to the first stage seedling (N ) In the direction away from the foliage (H), and the second presser bar (73) at the front position causes the foliage (H) of the seedling (N) to be taken out in the first stage to be entangled with the extraction claw (23). In addition, the first presser bar (72) at the rear position restricts the foliage (H) of the second-stage seedling (N) from being entangled with the foliage (H) of the first-stage seedling (N). It is composed.
[0017]
Thus, when the first stage seedling is taken out from the seedling tray (22), the foliage (H) of the seedling (N) falls in the direction of the seedling picking nail (23), and is disturbed when the nail (23) enters. And the inconvenience of bending the stems and leaves (H), and when the seedlings (N) are pulled out from the seedling tray (22), the stems and leaves (H) are hooked on the nails (23) to receive the seedlings on the seedling planting nails (25). The second presser bar (73) prevents inconveniences such as poor joints, and also removes the seedling (N) from the seedling tray (22) of the seedling extraction claw (23) to the seedling planting claw (25) position. The first presser bar (72) regulates the inconvenience that the stems and leaves (H) of the seedlings (N) are entangled with the stems and leaves (H) of the second stage seedlings (N). It is configured to perform good seedling (N) inheritance to the seedling planting claws (25) in which the seedling (N) does not fall off.
[0018]
In addition, a fixed washer of the adjustment shaft (80) that is in contact with the seedling regulating member (71) by interposing a crimp spring (82) between the spring seat (81) of the lower adjustment shaft (80) and the mounting plate (78). (83) is pressed against the restricting member (71) with the spring (82) force, thereby maintaining the position of the seedling restricting member (71) and the upper and lower sides of the seedling restricting member (71) against the spring (82) force. The first and second presser bars (72) and (73) which are easy to operate by adjusting the vertical position of the first and second presser bars (72) and (73) integrally by moving and making an adjustment tool or the like unnecessary. It is configured to make it possible to adjust the vertical position.
[0019]
As shown in FIGS. 5, 10, 11, 12, and 15, on the back side of the seedling platform (21), the side frame frame (75) between the left and right vertical frames (75 a) of the side frame frame (75). ) Is provided between a substantially upper end and a lower end, and a tray discharge guide member (84) for discharging and guiding the upper surface side of the empty seedling tray (22) after taking out the seedling is provided. (84a) is provided substantially parallel to the inside of the left and right vertical frame (75a), and the left and right vertical guide rods are connected to the fixing plate (85) at the lower end of the left and right vertical frame (75a) via the shaft (86) and the pivot plate (87). The lower end of (84a) is supported, and the upper end of the discharge guide member (84) is supported by the upper end horizontal connecting portion (75b) of the side frame frame (75), so that the transfer chain (57) and the vertical guide rod (84a) are supported. The gap between the A cell (22a) that is disengaged from the vertical feed pin (57a) during the discharge movement upward of the seedling tray (22) along the guide bar (84a) by reversing the moving direction at the lower end side of the rod (84a) It is configured to be pushed upward by a vertical feed pin (57a) that engages the part downward.
[0020]
Also, as shown in FIG. 15, a tray discharge guide (88) for discharging and guiding the bottom side of each cell (22a) at a position substantially opposite the center between the left and right vertical guide rods (84a) above the idle sprocket (56). And the seedling tray (22) is pushed upward and discharged through a guide gap (89) formed between the vertical guide bar (84a) and the discharge guide (88).
[0021]
The discharge guide (88) fixes the vertical plate portion (88a) to the back surface of the seedling mount (21), and the surface of the flat guide plate portion (88b) having a constant guide width (B) on the bottom surface of the cell (22a). This is a guide for discharging the seedling tray (22) by supporting the left and right vertical guide bars (84a) and the center guide plate part (88b) at three points, and guides from the left and right maximum pitch (Pmax) of the cell (22a). The seedling tray (22) is provided with a large width (B ≧ Pmax), and the bottom of the seedling tray (22) is guided at the center of at least two or more cells (22a) by the guide plate portion (88b). (22) can be discharged.
[0022]
The lower end and upper end of the guide plate portion (88b) are bent upward to form the inclined guide portions (88c) and (88d), and the lower end guide portion (88c) is positioned near the idle sprocket (56) and the upper end. The guide part (88d) faces the upper end of the vertical guide bar (84a) to prevent the seedling tray (22) from being caught in the chain (57) at the sprocket (56) position. In the tray discharge port (90) formed between the vertical guide bar (84a) and the upper end of the seedling stage (21), the direction of pulling out the tray (22) is the discharge guide (88). The tray (22) is easily pulled out without being limited by the above, and the tray (22) is reliably recovered.
[0023]
In addition, the clearance (S) between the upper and lower sides of the guide plate portion (88b) and the vertical guide rod (84a) and the height (K) of the seedling tray (22) are usually substantially the same (S≈K). However, as shown in FIG. 16, the gap (S) is provided smaller than the height (K) (S <K), and the seedling tray (84a) is centered on the guide plate portion (88b) with the left and right vertical guide bars (84a). 22) By pressing and bending the left and right ends of the plastic resin, it becomes rigid (deforms in the vertical direction in this case) perpendicular to the direction of bending in the flexible synthetic resin seedling tray (22). The seedling tray (22) can be pushed up while maintaining the proper discharge posture up to a position higher than the discharge port (90), and the seedling tray (22) can be easily collected. Is. Further, in this case, a certain space or more can be secured between the seedling tray (22) to be discharged and the steering handle (26) behind this, and interference with each lever (27) (28) (29) (30) etc. Can be avoided.
[0024]
【The invention's effect】
As is apparent from the above embodiments, the present invention is a vegetable transplanting machine in which the seedling (N) is extracted from the seedling tray (22) of the seedling mount (21) by the seedling extraction claw (23) and planted. A plurality of seedling presser members (72) and (73) for restricting the fall of the plurality of seedlings (N) in the direction of the seedling extraction claw (23) in the vicinity of the seedling extraction position of the tray (22) are provided , and the plurality of seedling presser members (72) (73) is a first portal member that is formed in a rear-view substantially portal shape in which the upper end sides of both leg portions in a side view are bent backward and inclined, and is a horizontal connecting portion at the upper ends of the both leg portions; A second presser member provided in parallel with the first presser member between the bent base ends of the both leg portions is provided, and the plurality of seedling presser members (72) and (73) are provided so as to be integrally adjustable. Because there is a seedling (N At the time of taking out, for example, the take-off position of the seedling tray (22) and the leaves (H) of the seedling (N) at the upper position are moved away from the seedling picking claws (23) by the plurality of seedling holding members (72) (73). Regulate each, and the stem (H) of the extracted seedling (N) is entangled with the seedling extraction nail (23), or the stem (F) of the seedling (N) in the upper position on the stem (F) of the extracted seedling (N) This prevents inconveniences such as entanglement, improves the accuracy of seedling removal, and keeps the plurality of seedling holding members (72) and (73) at appropriate positions by simple position adjustment, thereby improving the accuracy of seedling removal. It can be easily maintained stably.
[0025]
Further, since the seedling holding members (72) and (73) are fixed and held on the seedling mounting base (21) by the spring force of the crimping spring (82), the tools for adjustment are separately provided. Without being required, the position of the seedling presser members (72) and (73) can be adjusted easily to improve the seedling takeout accuracy.
[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 an overall rear view of the transplanter.
FIG. 4 is an explanatory plan view of a transplanted part.
FIG. 5 is an explanatory side view of the transplanted part.
FIG. 6 is a driving explanatory view of a seedling extraction claw portion.
FIG. 7 is an explanatory plan view of a seedling extraction claw portion.
FIG. 8 is a rear view of the seedling planting apparatus.
FIG. 9 is an explanatory diagram of a seedling planting claw drive unit.
FIG. 10 is an explanatory plan view of a seedling stage.
FIG. 11 is an explanatory plan view of a seedling stage.
FIG. 12 is an explanatory side view of the discharge guide portion.
FIG. 13 is an explanatory side view of a seedling regulating member.
FIG. 14 is a rear view of the seedling regulating member.
FIG. 15 is an explanatory diagram of a discharge guide portion.
FIG. 16 is a modified explanatory view of the discharge guide portion.
[Explanation of symbols]
(21) Seedling stand (22) Seedling tray (23) Seedling picking claw (72) (73) Seedling presser bar (seedling presser member)
(82) Spring (N) Seedling

Claims

In a vegetable transplanter that takes out the seedlings from the seedling tray on the seedling stand with the seedling extraction claws and plantes them, a plurality of seedlings that respectively regulate the fall of the plurality of seedlings in the direction of the seedling extraction claw in the vicinity of the seedling extraction position of the seedling tray A presser member is provided , and the plurality of seedling presser members are formed in a substantially portal shape in a rear view in which the upper end sides of both leg portions in a side view are bent backward and inclined, and are first horizontal connection portions at the upper ends of the both leg portions. And a second presser member provided in parallel with the first presser member between the bent base ends of the both leg portions, and the plurality of seedling presser members are provided so as to be capable of adjusting the position integrally. A vegetable transplanter.

2. The vegetable transplanting machine according to claim 1, wherein the seedling holding member is fixed and held on the seedling stage by a spring force of a crimping spring so that the position can be adjusted.