JP3456607B2

JP3456607B2 - Transplant machine

Info

Publication number: JP3456607B2
Application number: JP12080695A
Authority: JP
Inventors: 島英夫中; 藤忠司近; 古忠之新; 和雄関
Original assignee: ヤンマー農機株式会社
Priority date: 1995-04-20
Filing date: 1995-04-20
Publication date: 2003-10-14
Anticipated expiration: 2018-10-14
Also published as: JPH08289625A

Description

【発明の詳細な説明】【０００１】【産業上の利用分野】本発明は、圃場における野菜苗の
植付け等の対地作業を行う移植機に関する。【０００２】【従来の技術】従来、実願平４−５５２３４号明細書に
示す如く、ポット形野菜苗を入れた苗トレイを載せる苗
載台と、該苗載台を左右往復動させる横送り軸と、苗載
台が往復折返し部に到達したときに苗トレイを苗取出し
方向に送る縦送り軸を設け、苗トレイから植付爪に１株
分の野菜苗を取出して圃場面に植付ける技術がある。【０００３】【発明が解決しようとする課題】前記従来技術は、複数
のポットを縦横に一体連設して形成した合成樹脂製の苗
トレイを用いて育苗を行い、育苗済みの苗トレイを苗載
台に載せ、苗トレイの野菜苗を取出爪によって取出し、
植付爪によって畦上面に植付けるもので、野菜苗の植付
作業を機械化により自動的に連続して行えるが、野菜の
種類などによって大きさの異なるポットを形成した苗ト
レイを使い分けるから、苗トレイのポットの大きさに対
応させて苗載台の横送りピッチを変更させる必要があ
る。そこで、苗載台の横送り駆動力を伝達させる横送り
出力軸と横送り軸の間に低速ギヤ及び高速ギヤを交換自
在に設け、苗トレイのポットの大きさに対応させて低速
ギヤと高速ギヤを交換し、苗載台の横送りピッチを変更
させていたから、苗トレイの縦送りタイミングを適正に
維持し乍ら横送りピッチを変更できたが、前記各ギヤの
交換など切換操作が面倒である。また、低速ギヤ及び高
速ギヤを横送り出力軸に遊転軸支させ、各ギヤにシフト
キーを択一係合させることにより、簡単な操作で横送り
ピッチを変更できるが、高速ギヤから低速ギヤ側にシフ
トキーを切換えるとき、横送り軸が停止した状態で縦送
り軸が１回転した後、シフトキーの切換が行われ、苗ト
レイの縦送りタイミングが変更される不具合があった。
なお、横送り軸の下流側で縦送り軸を駆動したり、縦送
り軸に取出爪を同一回転にすることにより、前記シフト
キーの切換による縦送りタイミングの変更をなくせる
が、苗トレイの縦送り駆動の作動時間が制限される不具
合、並びにポットから苗を取出すときに横送りを停止さ
せる横送りの間欠駆動を行えない不具合が生じる。【０００４】【課題を解決するための手段】然るに、本発明は、ポッ
ト形野菜苗を入れた苗トレイを載せる苗載台と、該苗載
台を左右往復動させる横送り軸と、苗載台が往復折返し
部に到達したときに苗トレイを苗取出し方向に送る縦送
り軸を設け、苗トレイから植付爪に１株分の野菜苗を取
出して植付ける移植機において、横送り駆動力を横送り
軸に伝達させる低速ギヤ及び高速ギヤを横送り出力軸に
遊転軸支させ、低速ギヤ及び高速ギヤを横送り出力軸に
択一係合させるシフトキーを設けると共に、高速ギヤを
横送り軸に逆転連結させるカウンタ軸を設けたもので、
前記シフトキー操作によって低速ギヤと高速ギヤを切換
えたときに横送り軸の回転方向が逆になるから、低速か
ら高速または高速から低速のいずれの切換え時にも縦送
り軸の回転などによって縦送りタイミングが変更される
不具合をなくし得、ポットの大きさが異なる苗トレイに
対応してシフトキーの切換による横送りピッチ変更を容
易に行い得、苗トレイの使い分け並びに取扱い操作など
の簡略化を容易に図り得るものである。【０００５】【実施例】以下、本発明の実施例を図面に基づいて詳述
する。図１は苗載台駆動ケースの断面図、図２は全体の
側面図、図３は同平面図、図４は同背面図である。図中
（１）は作業者が搭乗する走行車であるトラクタであ
り、前後輪（２）（３）と操向ハンドル（４）と運転席
（５）などを備えると共に、前記ハンドル（４）前側の
ボンネット（６）両側に左右予備苗台（７）を、またボ
ンネット（６）内側にエンジンをそれぞれ配設させ、エ
ンジンによって前後輪（２）（３）を駆動して前後進さ
せる一方、操向ハンドル（４）によって前輪（２）を方
向転換させて走行進路を変更するように構成している。
また左右一対の走行クローラを装設させた車体によって
走行車に構成しても良く、また走行進路を自動的に検出
する操向センサと、前輪を方向転換させるアクチュエー
タと、操向センサの検出結果に基づきアクチュエータを
作動させるコントローラを設け、操向センサによって検
出する畦などに沿って自動的に走行させる自動操向機能
を持たせる構成でも良い。【０００６】また図５及び図６にも示す如く、図中
（８）は前記トラクタ（１）の後部に油圧リフト機構
（９）を介し昇降自在に装備する苗移植部であり、左右
一対の植付ユニット（１０）（１０）によって２条植え
構造の苗移植部（８）を構成するもので、ユニットフレ
ーム（１１）と、該フレーム（１１）に上下レール（１
２）（１３）を介して前後方向に往復摺動させる苗載台
（１４）と、苗載台（１４）上面の苗トレイ（１５）か
ら１株分のポット形野菜苗（１９）を取出す箸形取出爪
（１６）と、該取出爪（１６）から野菜苗（１９）を受
取って圃場面に植付けるホッパ形植付爪（１７）と、植
付爪（１７）の苗植付部前方の圃場面を鎮圧する均平ロ
ーラ（１８）と、植付爪（１７）によって植付けられた
野菜苗（１９）の覆土を行う左右一対の培土ローラ（２
０）と、植付駆動力を入力する植付ミッションケース
（２１）と、植付爪（１７）を駆動する植付爪駆動ケー
ス（２２）と、取出爪（１６）を駆動する取出爪駆動ケ
ース（２３）と、苗載台（１４）の横送り及び縦送りを
行う苗載台駆動ケース（２４）を、前記の左右植付ユニ
ット（１０）（１０）に夫々備えている。【０００７】そして、前記植付ミッションケース（２
１）から各駆動ケース（２２）〜（２４）に駆動力を伝
え、取出爪（１６）及び植付爪（１７）を所定軌跡上で
苗取出及び苗植付の各動作を夫々行わせると共に、苗載
台（１４）の前後方向往復移動による苗横送り並びに苗
載台（１４）傾斜下端側への苗トレイ（１５）移動によ
る苗縦送りの各動作を夫々行わせて、前後方向に横送り
する苗載台（１４）の苗トレイ（１５）より取出爪（１
６）により野菜苗（１９）を取出して植付爪（１７）に
野菜苗（１９）を受継いで、所定植付け間隔で野菜苗
（１９）を圃場の畦（２５）上面に連続的に植付けるよ
うに構成している。【０００８】さらに、図１、図５、図６、図７、図８に
示す如く、前記植付ミッションケース（２１）から駆動
力を伝える出力軸（２６）を設け、出力軸（２６）にチ
ェン（２７）を介して植付駆動軸（２８）を連結させる
と共に、ロータリケース（２９）及びクランクアーム
（３０）及び取出アーム（３１）を介して取出爪（１
６）を支持させ、取出駆動軸（２８）回りにロータリケ
ース（２９）を回転させ、苗載台（１４）から１株分の
野菜苗（１９）を取出す取出爪（１６）の苗取出動作並
びに上昇位置の植付爪（１７）内部に１株分の野菜苗を
入れる取出爪（１６）の苗供給動作を連続して行わせる
ように構成している。【０００９】また、前記苗載台（１４）を左右往復動さ
せる横送り軸（３１）と、苗載台（１４）が往復折返し
部に到達したときに苗トレイ（１５）を苗取出し方向に
送る縦送り軸（３２）を設け、前記苗載台駆動ケース
（２４）と軸受（３３）（３４）の間に前記各軸（３
１）（３２）を軸支させると共に、前記ケース（２４）
の入力軸（３５）にチェン（３６）を介して前記出力軸
（２６）を連結させ、取出爪（１６）及び前記各軸（３
１）（３２）を同期させて作動させるもので、横送り軸
（３１）の横送りネジ（３７）に苗載台（１４）の摺動
子（３８）を摺動自在に係止させ、ネジ（３７）の回転
によって苗載台（１４）を左右往復動させるように構成
している。【００１０】また、前記苗載台（１４）の苗（１９）を
取出爪（１６）が取出すときに下から押上げる押出ピン
（３９）を苗載台（１４）に設け、縦送り軸（３２）の
押出カム（４０）によってピン（３９）を押上げ動作さ
せると共に、苗載台（１４）の苗トレイ（１５）を苗取
出し方向に移動自在に支持させる一対の縦送チェン（４
１）（４１）を苗載台（１４）に縦送り入力軸（４２）
を介して取付けるもので、前記苗載台（１４）に縦送り
変速ケース（４３）を設け、変速レバー（４４）によっ
て切換える低速ギヤ（４５）及び高速ギヤ（４６）を前
記ケース（４３）に内設させると共に、縦送り軸（３
２）の一対の縦送カム（４７）（４７）によって前記ギ
ヤ（４５）または（４６）を駆動し、苗載台（１４）が
左右往復動端部に移動したとき、カム（４７）及びギヤ
（４５）または（４６）を介して入力軸（４２）を回転
させ、縦送チェン（４１）を作動させて１株（横一列）
分だけ苗トレイ（１５）を縦送り動作させるように構成
している。【００１１】さらに、図９にも示す如く、前記入力軸
（３５）を縦送り軸（３２）に減速ギヤ（４８）（４
９）を介して連結させると共に、苗載台駆動ケース（２
４）に横送り入力軸（５０）を設け、間欠ギヤ（５１）
（５２）及び横送停止カム（５３）（５４）を介して横
送り入力軸（５０）を前記入力軸（３５）に連結させる
もので、入力軸（３５）上の間欠ギヤ（５１）は半周を
大径のギヤにして残り半周を小径の歯ナシ逃し面に形成
し、前記横送り入力軸（５０）上の間欠ギヤ（５２）は
全周のギヤに形成する一方、前記入力軸（３５）上の停
止カム（５３）は半周を大径の円周面にして残り半周を
小径の逃し面に形成し、前記横送り入力軸（５０）上の
停止カム（５４）は前記カム（５３）の大径円周面に摺
接する切欠状円弧面を形成し、前記各ギヤ（５１）（５
２）を噛合せて入力軸（３５）を半回転時、入力軸（３
５）の回転を横送り入力軸（５０）に伝達し、１株分の
苗トレイ（１５）の横送りを行わせる一方、前記カム
（５３）の大径円周面にカム（５４）の円弧面が摺接し
て入力軸（３５）の残り半回転時にカム（５４）を固定
させて停止保持し、苗取出爪（１６）が苗トレイ（１
５）に突入する区間のみ横送りを停止させ、苗載台（１
４）を間欠的に横送り動作させて左右往復動させるよう
に構成している。【００１２】さらに、図１０にも示す如く、横送り入力
軸（５０）の横送り駆動力を横送り軸（３１）に伝達さ
せる低速ギヤ（５５）及び高速ギヤ（５６）を横送り出
力軸（５０）に遊転軸支させ、低速ギヤ（５５）及び高
速ギヤ（５６）を横送り出力軸（５０）に択一係合させ
るシフトキー（５７）を設けると共に、高速ギヤ（５
６）を横送り軸（３１）に逆転連結させるカウンタ軸
（５８）を設けたもので、前記低速ギヤ（５５）及び出
力ギヤ（５９）を介して横送り入力軸（５０）を横送り
軸（３１）に連結させると共に、前記高速ギヤ（５６）
及び出力ギヤ（６０）を介して横送り入力軸（５０）を
カウンタ軸（５８）に連結させ、同一歯数のカウンタギ
ヤ（６１）（６２）を介してカウンタ軸（５８）を横送
り軸（３１）に連結させる。また、前記横送り入力軸
（５０）のキー溝に前記シフトキー（５７）を摺動自在
に嵌入させると共に、入力軸（５０）軸芯方向にシフト
キー（５７）を摺動させるシフタ（６３）及びシフトフ
ォーク（６４）を取付け、前記ギヤ（５５）または（５
６）のキー溝並びにシフタ（６３）にシフトキー（５
７）を板バネ（６５）によって弾圧係合させ、シフトフ
ォーク（６４）によりシフタ（６３）及びシフトキー
（５７）を摺動させ、各ギヤ（５５）（５６）のキー溝
にシフトキー（５７）を係脱自在に択一係合させるよう
に構成している。【００１３】なお、前記低速ギヤ（５５）及び高速ギヤ
（５６）だけが軸（５０）に対して回転自在に設けられ
ており、他のギヤ（４８）（４９）（５１）（５２）
（５９）（６０）（６１）（６２）並びにカム（５３）
（５４）は、各軸（３１）（３２）（３５）（５０）
（５８）に一体的に固定されている。【００１４】また、引張バネ（６６）及び変速ワイヤ
（６７）を前記シフトフォーク（６４）に連結させ、ワ
イヤ（６７）によってシフトフォーク（６４）を引張っ
てシフトキー（５７）を低速ギヤ（５５）に係合させる
と共に、バネ（６６）によってシフトフォーク（６４）
を戻してシフトキー（５７）を高速ギヤ（５６）に係合
させるもので、前記変速レバー（４４）に変速ワイヤ
（６７）を連結させ、苗トレイ（１５）の縦送り変速と
横送り変速を常に連動して行えるように構成している。
なお、苗トレイ（１５）の縦送り変速と横送り変速を各
別に行ってもよいと共に、苗載台（１４）の左右往復動
端部への移動を検出して変速レバー（４４）による苗ト
レイ（１５）の縦送り変速と横送り変速の動作を行わせ
る変速時期制限機構を設けてもよい。【００１５】さらに、図１１、図１２、図１３に示す如
く、複数のポット（６８）…を縦横に一体連設させて合
成樹脂製の苗トレイ（１５）を形成し、各ポット（６
８）…に土を入れて播種し、育苗を行い、野菜苗（１
９）を所定大きさに育成した苗トレイ（１５）を苗載台
（１４）に搭載して移植作業を行うもので、前記苗トレ
イ（１５）の縦幅（Ａ）及び横幅（Ｂ）を、苗トレイ
（１５）を入れる育苗箱（図示省略）並びに苗載台（１
５）左右幅に合わせて形成すると共に、ポット（６８）
の四角形上面開口部の大きさ即ち一辺の長さ（Ｃ）を野
菜の種類によって２種類に形成し、ポット（６８）開口
部が小さい図１２の苗トレイ（１５）と、ポット（６
８）開口部が大きい図１３の苗トレイ（１５）を使い分
け、キャベツまたはレタスなどの野菜苗（１９）を育苗
する。【００１６】そして、図１２の苗トレイ（１５）を苗載
台（１４）に搭載して移植作業を行うとき、図１０のよ
うに、シフトキー（５７）を低速ギヤ（５５）に係合さ
せ、低速ギヤ（５５）を介して横送り軸（３１）を駆動
し、図１４のように低速往復により苗載台（１４）の横
移動が行われるもので、このとき、カウンタ軸（５８）
を介して高速ギヤ（５６）が逆転されるから、図１５の
ように、図１２の苗トレイ（１５）に代えて図１３の苗
トレイ（１５）を苗載台（１４）に搭載する増速切換を
行うとき、苗載台（１４）往復動端部でシフトキー（５
７）を高速ギヤ（５６）係合側に移動させることによ
り、低速ギヤ（５５）の駆動が中止され、かつ横送り入
力軸（５０）側の取出爪（１６）及び縦送り軸（３２）
が１回転するまでにシフトキー（５７）が高速ギヤ（５
６）に係合し、高速ギヤ（５６）を介して横送り軸（３
１）が逆転駆動される。【００１７】また、図１３の苗トレイ（１５）を苗載台
（１４）に搭載して移植作業を行うとき、図１６のよう
に、シフトキー（５７）を高速ギヤ（５６）に係合させ
て高速ギヤ（５６）を駆動し、高速ギヤ（５６）を介し
て横送り軸（３１）を駆動し、高速往復により苗載台
（１４）を横移動させるもので、図１７のように、図１
３の苗トレイ（１５）に代えて図１２の苗トレイ（１
５）を苗載台（１４）に搭載する減速切換を行うとき、
苗載台（１４）往復動端部でシフトキー（５７）を低速
ギヤ（５５）係合側に移動させることにより、高速ギヤ
（５６）の駆動が中止され、かつ横送り入力軸（５０）
側の取出爪（１６）及び縦送り軸（３２）が１回転する
までにシフトキー（５７）が低速ギヤ（５５）に係合
し、低速ギヤ（５５）を介して横送り軸（３１）が逆転
駆動される。【００１８】上記から明らかなように、前記シフトキー
（５７）操作によって低速ギヤ（５５）と高速ギヤ（５
６）を切換えたときに横送り軸（３１）の回転方向が逆
になり、空転側のギヤ（５５）または（５６）がシフト
キー（５７）に対し逆転するから、低速ギヤ（５５）よ
りも位相が進む高速ギヤ（５６）にシフトキー（５７）
が係合する間に、取出爪（１６）が余分に回転するのを
防止でき、低速から高速または高速から低速のいずれの
切換え時にも縦送り軸（３２）の回転などによって縦送
りタイミングが変更される不具合をなくし、ポットの大
きさが異なる図１２または図１３の苗トレイ（１５）に
対応してシフトキー（５７）の切換による横送りピッチ
変更を行うように構成している。【００１９】【発明の効果】以上実施例から明らかなように本発明
は、ポット形野菜苗（１９）を入れた苗トレイ（１５）
を載せる苗載台（１４）と、該苗載台（１４）を左右往
復動させる横送り軸（３１）と、苗載台（１４）が往復
折返し部に到達したときに苗トレイ（１５）を苗取出し
方向に送る縦送り軸（３２）を設け、苗トレイ（１５）
から植付爪（１７）に１株分の野菜苗（１９）を取出し
て植付ける移植機において、横送り駆動力を横送り軸
（３１）に伝達させる低速ギヤ（５５）及び高速ギヤ
（５６）を横送り出力軸（５０）に遊転軸支させ、低速
ギヤ（５５）及び高速ギヤ（５６）を横送り出力軸（５
０）に択一係合させるシフトキー（５７）を設けると共
に、高速ギヤ（５６）を横送り軸（３１）に逆転連結さ
せるカウンタ軸（５８）を設けたもので、前記シフトキ
ー（５７）操作によって低速ギヤ（５５）と高速ギヤ
（５６）を切換えたときに横送り軸（３１）の回転方向
が逆になるから、低速から高速または高速から低速のい
ずれの切換え時にも縦送り軸（３２）の回転などによっ
て縦送りタイミングが変更される不具合をなくすことが
でき、ポットの大きさが異なる苗トレイ（１５）に対応
してシフトキー（５７）の切換による横送りピッチ変更
を容易に行うことができ、苗トレイ（１５）の使い分け
並びに取扱い操作などの簡略化を容易に図ることができ
るものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for performing ground work such as planting vegetable seedlings in a field. 2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Application No. 4-55234, a seedling table on which a seedling tray containing pot-shaped vegetable seedlings is placed, and a lateral feed for reciprocating the seedling table horizontally. A shaft and a vertical feed shaft that feeds the seedling tray in the seedling removal direction when the seedling mounting table reaches the reciprocating folded portion are provided, and one plant vegetable seedling is taken out from the seedling tray to the planting claw and planted in the field scene. There is technology. [0003] According to the prior art, seedlings are raised using a synthetic resin seedling tray formed by integrally connecting a plurality of pots vertically and horizontally, and the seedling trays having been seeded are replaced with seedlings. Put it on the platform, take out the vegetable seedlings in the seedling tray with the extraction claw,
The seedlings are planted on the upper surface of the ridge with planting nails, and the planting work of vegetable seedlings can be automatically and continuously performed by mechanization.However, seedling trays that form pots with different sizes depending on the type of vegetables etc. It is necessary to change the lateral feed pitch of the seedling mounting table according to the size of the tray pot. Therefore, a low-speed gear and a high-speed gear are interchangeably provided between the traverse output shaft and the traverse feed shaft for transmitting the traverse drive force of the seedling mounting table. Since the gears were changed and the horizontal feed pitch of the seedling mounting table was changed, the horizontal feed pitch could be changed while maintaining the vertical feed timing of the seedling tray properly.However, switching operations such as changing the gears were troublesome. is there. In addition, the low-speed gear and high-speed gear can be freely rotated on the traverse feed output shaft, and the shift key can be selectively engaged with each gear to change the traverse pitch with a simple operation. When the shift key is switched, the shift key is switched after the vertical feed shaft makes one rotation while the horizontal feed shaft is stopped, and the vertical feed timing of the seedling tray is changed.
In addition, by driving the vertical feed shaft on the downstream side of the horizontal feed shaft or by making the take-out claw rotate in the vertical feed shaft in the same rotation, the change of the vertical feed timing due to the switching of the shift key can be eliminated. There is a problem that the operation time of the feed drive is limited, and a problem that the intermittent drive of the lateral feed for stopping the lateral feed when removing the seedling from the pot cannot be performed. Accordingly, the present invention provides a seedling mounting table on which a seedling tray containing pot-shaped vegetable seedlings is mounted, a lateral feed shaft for reciprocating the seedling mounting table from side to side, and a seedling mounting. A vertical feed shaft for feeding the seedling tray in the seedling removal direction when the table reaches the reciprocating turning portion is provided. And a shift key that allows the low-speed gear and high-speed gear to freely rotate on the traverse output shaft, and selectively engages the low-speed gear and high-speed gear with the traverse output shaft. With a counter shaft that is reversely connected to the shaft,
When the low-speed gear and the high-speed gear are switched by the shift key operation, the rotation direction of the horizontal feed shaft is reversed, so that the vertical feed timing is changed by rotation of the vertical feed shaft at any time of switching from low speed to high speed or high speed to low speed. It is possible to eliminate the problem of being changed, to easily change the lateral feed pitch by switching the shift key corresponding to the seedling trays having different pot sizes, and to easily use the seedling trays and simplify the handling operation. Things. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a sectional view of a seedling table driving case, FIG. 2 is an overall side view, FIG. 3 is a plan view thereof, and FIG. 4 is a rear view thereof. In the figure, reference numeral (1) denotes a tractor, which is a traveling vehicle on which an operator rides, and includes front and rear wheels (2) and (3), a steering handle (4), a driver's seat (5), and the like, and the handle (4). Left and right spare seedling stands (7) are disposed on both sides of the front hood (6), and engines are disposed inside the hood (6). The front and rear wheels (2) and (3) are driven by the engine to move forward and backward. The front steering wheel (2) is turned by the steering handle (4) to change the traveling course.
A traveling vehicle may be constituted by a body equipped with a pair of left and right traveling crawlers, and a steering sensor for automatically detecting a traveling course, an actuator for turning a front wheel, and a detection result of the steering sensor. A controller may be provided to operate the actuator based on the above, and have an automatic steering function of automatically traveling along a ridge detected by the steering sensor. As shown in FIGS. 5 and 6, reference numeral (8) in the drawings denotes a seedling transplanting section which is provided at the rear of the tractor (1) via a hydraulic lift mechanism (9) so as to be able to move up and down. The planting units (10) and (10) constitute a seedling transplanting section (8) having a two-row planting structure, and include a unit frame (11) and upper and lower rails (1) on the frame (11).
2) Take out one pot-shaped vegetable seedling (19) from the seedling table (14) which is reciprocated in the front-rear direction via (13) and the seedling tray (15) on the upper surface of the seedling table (14). Chopstick-shaped take-out nail (16), hopper-type planting nail (17) for receiving vegetable seedlings (19) from the take-out nail (16) and planting it in a field scene, and seedling planting part of planting nail (17) A leveling roller (18) for crushing the front field scene, and a pair of left and right cultivation rollers (2) for covering the vegetable seedlings (19) planted by the planting claws (17).
0), a planting transmission case (21) for inputting a planting driving force, a planting claw driving case (22) for driving a planting claw (17), and a removal claw drive for driving a removal claw (16). The left and right planting units (10) and (10) are provided with a case (23) and a seedling mounting table drive case (24) for horizontally and vertically feeding the seedling mounting table (14), respectively. The planting mission case (2)
The driving force is transmitted from 1) to each of the drive cases (22) to (24), and the take-out claw (16) and the planting claw (17) are caused to perform the respective operations of seedling picking and planting on a predetermined locus, respectively. The seedling traverse movement by the reciprocating movement of the seedling table (14) and the seedling vertical movement by moving the seedling tray (15) to the lower end side of the seedling table (14) are performed. Remove the claw (1) from the seedling tray (15) of the
6) The vegetable seedling (19) is taken out, the vegetable seedling (19) is inherited by the planting nail (17), and the vegetable seedling (19) is continuously planted on the upper surface of the field ridge (25) at a predetermined planting interval. It is configured to attach. Further, as shown in FIGS. 1, 5, 6, 7, and 8, an output shaft (26) for transmitting a driving force from the planting transmission case (21) is provided, and the output shaft (26) is provided on the output shaft (26). The planting drive shaft (28) is connected via the chain (27), and the extraction claw (1) is connected via the rotary case (29), the crank arm (30) and the extraction arm (31).
6), the rotary case (29) is rotated about the take-out drive shaft (28), and the take-out claw (16) for taking out one plant seedling (19) from the seedling mounting table (14). In addition, it is configured to continuously perform the seedling supply operation of the take-out claw (16) for putting the vegetable seedling of one strain into the inside of the planting claw (17) at the ascending position. Further, a lateral feed shaft (31) for reciprocating the seedling mounting table (14) to the left and right, and a seedling tray (15) in the seedling removing direction when the seedling mounting table (14) reaches the reciprocating turning portion. A vertical feed shaft (32) for feeding is provided, and each of the shafts (3) is provided between the seedling mounting drive case (24) and the bearings (33) (34).
1) The case (24) is supported while the case (24) is pivotally supported.
The output shaft (26) is connected to the input shaft (35) through a chain (36), and the extraction claw (16) and each of the shafts (3) are connected.
1) To operate the (32) in synchronization, the slider (38) of the seedling mounting (14) is slidably engaged with the lateral feed screw (37) of the lateral feed shaft (31), The seedling table (14) is configured to reciprocate left and right by rotating the screw (37). An extruding pin (39) is provided on the seedling mounting (14) to push up the seedling (19) of the seedling mounting (14) from below when the extraction claw (16) removes the seedling (19). A push-up cam (40) of (32) pushes up the pin (39), and a pair of longitudinal feed chains (4) for movably supporting the seedling tray (15) of the seedling mounting table (14) in the seedling removal direction.
1) Input shaft (42) of (41) vertically to seedling table (14)
A vertical feed speed change case (43) is provided on the seedling mount (14), and a low speed gear (45) and a high speed gear (46) switched by a speed change lever (44) are attached to the case (43). In addition to the vertical feed shaft (3
The gear (45) or (46) is driven by the pair of vertical feed cams (47) and (47) of 2), and when the seedling mounting (14) moves to the left and right reciprocating end, the cam (47) and The input shaft (42) is rotated via the gear (45) or (46), and the longitudinal feed chain (41) is operated to make one stock (one horizontal line).
It is configured so that the seedling tray (15) is moved vertically by the amount. Further, as shown in FIG. 9, the input shaft (35) is connected to the longitudinal feed shaft (32) by a reduction gear (48) (4).
9) and the seedling table drive case (2)
4) a transverse feed shaft (50) is provided, and an intermittent gear (51) is provided.
(52) and a transverse feed input shaft (50) is connected to the input shaft (35) via the transverse feed stop cams (53) and (54). The intermittent gear (51) on the input shaft (35) is A half circumference is a large-diameter gear and the remaining half is formed on a small-diameter tooth relief surface. An intermittent gear (52) on the lateral feed input shaft (50) is formed on a full circumference gear while the input shaft ( The stop cam (53) on the 35) has a semicircle with a large-diameter circumferential surface and the other half with a small-diameter relief surface, and the stop cam (54) on the lateral feed input shaft (50) is a cam (54). A notch-shaped arc surface which is in sliding contact with the large-diameter circumferential surface of 53) is formed, and each of the gears (51) (5)
2) when the input shaft (35) rotates half a turn, the input shaft (3)
The rotation of 5) is transmitted to the lateral feed input shaft (50), and the seedling tray (15) for one plant is laterally fed, while the cam (53) is mounted on the large diameter circumferential surface of the cam (53). The arc surface slides and the cam (54) is fixed and stopped and held during the remaining half rotation of the input shaft (35), and the seedling removal claw (16) is moved to the seedling tray (1).
Stop the lateral feed only in the section that enters 5), and
4) is intermittently traversed and reciprocated left and right. Further, as shown in FIG. 10, a low-speed gear (55) and a high-speed gear (56) for transmitting a traverse driving force of the traverse input shaft (50) to the traverse shaft (31) include a traverse output shaft. (50) is provided with a shift key (57) for allowing free rotation of the low-speed gear (55) and the high-speed gear (56) to selectively engage with the lateral feed output shaft (50).
6) is provided with a counter shaft (58) for reversely connecting the transverse feed shaft (31) to the transverse feed shaft (31). The transverse feed input shaft (50) is connected to the transverse feed shaft via the low-speed gear (55) and the output gear (59). (31) and the high-speed gear (56).
And the transverse feed input shaft (50) is connected to the counter shaft (58) via the output gear (60), and the counter shaft (58) is moved to the transverse feed shaft via the counter gears (61) and (62) having the same number of teeth. Connect to (31). A shifter (63) that slidably fits the shift key (57) into the key groove of the lateral feed input shaft (50) and slides the shift key (57) in the axis direction of the input shaft (50); Attach the shift fork (64), and install the gear (55) or (5).
Shift key (5) in the keyway and shifter (63) of 6).
7) is resiliently engaged by a leaf spring (65), and the shift fork (64) slides the shifter (63) and the shift key (57), so that the shift key (57) is inserted into the key groove of each gear (55) (56). Are configured so as to selectively engage with each other. Only the low-speed gear (55) and the high-speed gear (56) are provided rotatably with respect to the shaft (50), and the other gears (48) (49) (51) (52).
(59) (60) (61) (62) and cam (53)
(54) each axis (31) (32) (35) (50)
(58). A tension spring (66) and a speed change wire (67) are connected to the shift fork (64). The shift fork (64) is pulled by the wire (67) to move the shift key (57) to the low speed gear (55). And a shift fork (64) by a spring (66).
Then, the shift key (57) is engaged with the high-speed gear (56). A shift wire (67) is connected to the shift lever (44) so that the vertical feed shift and the lateral feed shift of the seedling tray (15) can be performed. It is configured so that it can always be linked.
The vertical feed shift and the lateral feed shift of the seedling tray (15) may be separately performed, and the shift of the seedling mounting table (14) to the left and right reciprocating ends is detected, and the seedling shift by the shift lever (44) is detected. A shift timing limiting mechanism for performing the vertical feed shift and the horizontal feed shift of the tray (15) may be provided. Further, as shown in FIGS. 11, 12 and 13, a plurality of pots (68) are connected vertically and horizontally to form a seedling tray (15) made of synthetic resin.
8) Put soil in and sow seeds, raise seedlings, and grow vegetable seedlings (1
The seedling tray (15) obtained by growing the seedling tray (9) to a predetermined size is mounted on a seedling mounting table (14) for transplantation. The vertical width (A) and the horizontal width (B) of the seedling tray (15) are determined. , A nursery box (not shown) to put the seedling tray (15)
5) The pot (68) is formed according to the left and right width.
The size of the rectangular upper surface opening, that is, the length of one side (C) is formed in two types depending on the type of vegetable, and the pot (68) has a small opening and the seedling tray (15) of FIG.
8) The vegetable tray (19) such as cabbage or lettuce is grown by selectively using the seedling tray (15) of FIG. 13 having a large opening. When the seedling tray (15) shown in FIG. 12 is mounted on the seedling table (14) and transplantation is performed, the shift key (57) is engaged with the low-speed gear (55) as shown in FIG. The lateral feed shaft (31) is driven via the low-speed gear (55), and the seedling table (14) is moved laterally by low-speed reciprocation as shown in FIG. 14. At this time, the counter shaft (58)
As shown in FIG. 15, the high-speed gear (56) is reversed, so that the seedling tray (15) of FIG. 13 is mounted on the seedling mounting table (14) instead of the seedling tray (15) of FIG. When changing the speed, use the shift key (5) at the reciprocating end of the seedling table (14).
By moving 7) to the high-speed gear (56) engagement side, the driving of the low-speed gear (55) is stopped, and the take-out claw (16) and the vertical feed shaft (32) on the side of the horizontal feed input shaft (50) are stopped.
The shift key (57) is moved to the high-speed gear (5
6) and the transverse feed shaft (3) via the high-speed gear (56).
1) is driven in reverse. When the seedling tray (15) shown in FIG. 13 is mounted on the seedling table (14) and transplantation is performed, the shift key (57) is engaged with the high-speed gear (56) as shown in FIG. The high-speed gear (56) is driven to drive the transverse feed shaft (31) via the high-speed gear (56), and the seedling table (14) is moved laterally by high-speed reciprocation, as shown in FIG. FIG.
12 in place of the seedling tray (15) of FIG.
5) When performing deceleration switching in which the seedling mounting (14) is mounted,
The drive of the high-speed gear (56) is stopped by moving the shift key (57) to the low-speed gear (55) engagement side at the reciprocating end of the seedling mounting table (14), and the lateral feed input shaft (50).
The shift key (57) is engaged with the low-speed gear (55) by one rotation of the take-out claw (16) and the vertical feed shaft (32), and the horizontal feed shaft (31) is moved via the low-speed gear (55). It is driven in reverse rotation. As is apparent from the above description, the low-speed gear (55) and the high-speed gear (5) are operated by the operation of the shift key (57).
When 6) is switched, the rotation direction of the transverse feed shaft (31) is reversed, and the idle gear (55) or (56) rotates in reverse with respect to the shift key (57). Shift key (57) for high-speed gear (56) with advanced phase
During the engagement, the take-out claw (16) can be prevented from rotating excessively, and the vertical feed timing can be changed by rotation of the vertical feed shaft (32) at any time of switching from low speed to high speed or high speed to low speed. The configuration is such that the lateral feed pitch is changed by switching the shift key (57) corresponding to the seedling tray (15) in FIG. 12 or FIG. 13 having a different pot size. As is apparent from the above examples, the present invention provides a seedling tray (15) containing pot-shaped vegetable seedlings (19).
, A transverse feed shaft (31) for reciprocating the seedling table (14) left and right, and a seedling tray (15) when the seedling table (14) reaches the reciprocating turning portion. A vertical feed shaft (32) for feeding the seedlings in the seedling removal direction is provided, and a seedling tray (15)
A low-speed gear (55) and a high-speed gear (56) for transmitting a transverse drive force to a transverse feed shaft (31) in a transplanter that takes out one plant vegetable seedling (19) from the planting claw (17) and implants it. ) Is rotatably supported on the traverse output shaft (50), and the low-speed gear (55) and the high-speed gear (56) are connected to the traverse output shaft (5).
0) and a counter shaft (58) for reversely connecting the high-speed gear (56) to the transverse feed shaft (31) is provided, and the shift key (57) is operated by the shift key (57). When the low-speed gear (55) and the high-speed gear (56) are switched, the rotation direction of the horizontal feed shaft (31) is reversed. Therefore, the vertical feed shaft (32) is switched at any time from low-speed to high-speed or high-speed to low-speed. It is possible to eliminate the problem that the vertical feed timing is changed due to the rotation of the pan and the like, and to easily change the horizontal feed pitch by switching the shift key (57) corresponding to the seedling trays (15) having different pot sizes. It is possible to easily use the seedling tray (15) properly and simplify the handling operation and the like.

【図面の簡単な説明】【図１】苗載台駆動ケースの断面図。【図２】全体の側面図。【図３】同平面図。【図４】同背面図。【図５】苗載台部の正面図。【図６】同側面図。【図７】同駆動系統図。【図８】苗載台駆動ケースの拡大図。【図９】同部分図。【図１０】同分解説明図。【図１１】苗トレイの部分斜視図。【図１２】苗トレイの平面図。【図１３】苗トレイの平面図。【図１４】低速及び高速ギヤ位相を示す低速往復説明
図。【図１５】同増速説明図。【図１６】同高速往復説明図。【図１７】同減速説明図。【符号の説明】（１４）苗載台（１５）苗トレイ（１７）植付爪（１９）ポット形野菜苗（３１）横送り軸（３２）縦送り軸（５０）横送り出力軸（５５）低速ギヤ（５６）高速ギヤ（５７）シフトキー（５８）カウンタ軸BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a seedling mounting table drive case. FIG. 2 is an overall side view. FIG. 3 is a plan view of the same. FIG. 4 is a rear view of the same. FIG. 5 is a front view of a seedling mounting portion. FIG. 6 is a side view of the same. FIG. 7 is a drive system diagram. FIG. 8 is an enlarged view of a seedling table drive case. FIG. 9 is a partial view of the same. FIG. 10 is an exploded explanatory view of the same. FIG. 11 is a partial perspective view of a seedling tray. FIG. 12 is a plan view of a seedling tray. FIG. 13 is a plan view of a seedling tray. FIG. 14 is an explanatory diagram of low-speed reciprocation showing low-speed and high-speed gear phases. FIG. 15 is an explanatory diagram of the speed increase. FIG. 16 is an explanatory diagram of the high-speed reciprocation. FIG. 17 is an explanatory diagram of the same deceleration. [Description of Signs] (14) Seedling stand (15) Seedling tray (17) Planting claw (19) Pot-shaped vegetable seedling (31) Lateral feed shaft (32) Vertical feed shaft (50) Lateral feed output shaft (55) ) Low speed gear (56) High speed gear (57) Shift key (58) Counter shaft

───────────────────────────────────────────────────── フロントページの続き (72)発明者関和雄大阪市北区茶屋町１番32号ヤンマー農機株式会社内 (56)参考文献特開平６−311805（ＪＰ，Ａ) 実開平６−9412（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.⁷，ＤＢ名) A01C 11/00 - 11/02 303 A01C 11/02 350 - 367 ──────────────────────────────────────────────────続き Continuation of the front page (72) Kazuo Seki, 1-32 Chaya-cho, Kita-ku, Osaka-shi Inside Yanmar Agricultural Machinery Co., Ltd. (56) References JP-A-6-311805 (JP, A) 6-9412 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 350-367

Claims

(57) [Claims] [Claim 1] A seedling mounting table for mounting a seedling tray containing pot-shaped vegetable seedlings, a lateral feed shaft for reciprocating the seedling mounting table from side to side,
A vertical feed shaft that feeds the seedling tray in the seedling removal direction when the seedling mounting table reaches the reciprocating turn-over portion is provided. A low-speed gear and a high-speed gear for transmitting the driving force to the traverse feed shaft are rotatably supported on the traverse output shaft, and a shift key for selectively engaging the low-speed gear and the high-speed gear with the traverse output shaft is provided. An implanting machine provided with a counter shaft which is reversely connected to a transverse feed shaft.