JP4864467B2 - Transplanter - Google Patents

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JP4864467B2
JP4864467B2 JP2006009006A JP2006009006A JP4864467B2 JP 4864467 B2 JP4864467 B2 JP 4864467B2 JP 2006009006 A JP2006009006 A JP 2006009006A JP 2006009006 A JP2006009006 A JP 2006009006A JP 4864467 B2 JP4864467 B2 JP 4864467B2
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seedling
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planting
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release
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JP2007189917A (en
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隆雄 溝口
隆雄 阪辻
健吉 野坂
将人 杉岡
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Kubota Corp
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Description

本発明は、例えば、玉葱、レタス、キャベツ、タバコ等のソイルブロック苗を、苗トレイのポットから1つずつ取り出して移植する移植機に関する。   The present invention relates to a transplanter for taking out soil block seedlings such as onions, lettuce, cabbage, and tobacco from a pot on a seedling tray one by one and transplanting them.

従来、移植機は、走行機体に、縦横に多数のポットを備えた苗トレイを載置する苗供給機構と、畝に苗を植え付ける植付機構と、苗供給機構の苗トレイから苗を1つずつ取り出して植付機構へと供給する苗取出機構とを備えて構成されているものが知られている。
例えば特許文献1や特許文献2の移植機において、該苗取出機構は、苗供給機構の前方側に配備されており、一対の苗取爪と、該一対の苗取爪の動作を制御する制御手段とを備えている。これにより、該一対の苗取爪は、苗取出位置となる苗トレイのポット内に移動し、該ポット内にて育苗された苗の根鉢を上方より突き刺して該苗をポットから取り出し、苗放出位置となる植付機構の植付カップの上方まで苗を搬送した後に、該苗を該植付カップに向けて放出する。
特開2002−17123号公報 特開2004−81162号公報
Conventionally, a transplanter has a seedling supply mechanism for placing a seedling tray provided with a large number of pots vertically and horizontally on a traveling machine, a planting mechanism for planting seedlings in a basket, and one seedling from the seedling tray of the seedling supply mechanism. There is known one that is configured to include a seedling extraction mechanism that takes out and supplies the planting mechanism to a planting mechanism.
For example, in the transplanter of Patent Literature 1 and Patent Literature 2, the seedling extraction mechanism is provided on the front side of the seedling supply mechanism, and controls a pair of seedling extraction claws and operations of the pair of seedling extraction claws. Means. As a result, the pair of seedling picking claws move into the pot of the seedling tray serving as the seedling extraction position, and the root pot of the seedling grown in the pot is pierced from above to take out the seedling from the pot. After the seedling is conveyed to above the planting cup of the planting mechanism serving as the release position, the seedling is released toward the planting cup.
JP 2002-17123 A JP 2004-81162 A

しかしながら、上記移植機において、苗トレイから植付カップまで搬送される苗は、一対の苗取爪に根鉢を突き刺された状態で搬送されるため、該一対の苗取爪の該突刺し深さが適正位置よりも浅い場合や走行機体からの振動によって一対の苗取爪による突き刺し状態が緩められる場合等、搬送中の苗が一対の苗取爪から外れて畝に落下してしまう問題があった。   However, in the transplanter, since the seedlings transported from the seedling tray to the planting cup are transported in a state where the root pots are pierced by a pair of seedling nail, the piercing depth of the pair of seedling nail There is a problem that the seedling being transported comes off the pair of seedling catching nails and falls into the cage, such as when the stabbed state by the pair of seedling catching nails is loosened due to vibration from the traveling aircraft or when it is shallower than the appropriate position there were.

そこで、本発明は、苗取爪によって搬送される苗の畝への落下を防止することができる移植機を提供するようにしたものである。   Therefore, the present invention is to provide a transplanter that can prevent a seedling carried by a seedling nail from falling onto a cocoon.

前記目的を達成するため、本発明においては以下の技術的手段を講じた。
即ち、本発明における課題解決のための技術的手段は、苗取出位置にて苗の根鉢に対して該根鉢の植付面から底部に向けて苗取爪を横向き姿勢で突き刺した後に該苗取爪を持上げながら後退させることにより苗トレイより苗を取り出し、その後、この苗取出位置から苗放出位置へと苗取爪を横向き姿勢から下向き姿勢に姿勢変更させながら移動させ、該苗放出位置にて該苗を苗取爪から放出させた後、該苗取爪を下向き姿勢から横向き姿勢に姿勢変更させながら苗取出位置に戻す苗取出機構を具備し、
前記苗取出位置と苗放出位置との間を往復移動する苗取爪の先端の移動軌跡苗取出位置から苗放出位置まで苗を搬送する部分軌跡よりも下方に該移動軌跡の苗放出位置から苗取出位置に戻る部分軌跡が位置しており、且つこれら部分軌跡が苗取出位置から苗放出位置に向けて下り方向に傾斜状に形成されている移植機において、
前記苗取爪の先端の移動軌跡の苗放出位置から苗取出位置に至る部分軌跡の下方には、移動軌跡の苗取出位置から苗放出位置まで苗を搬送する部分軌跡に沿って苗取出位置から苗放出位置に向けて下り方向に傾斜状に形成されていて前記苗取爪によって搬送中の苗の根鉢の底部に摺接可能又は僅かに離間した状態で対向する位置に設定可能とされた受け面を有し且つ苗取爪によって搬送中の苗を受ける受け具が設けられ、
この受け具は上下動可能に支持されていて、上下動させることにより前記受け面が苗取爪によって苗取出位置から苗放出位置へと搬送される根鉢に対して近接離間させることができるように、位置調整自在とされていることを特徴としている。
In order to achieve the above object, the present invention takes the following technical means.
That is, the technical means for solving the problems in the present invention, said at seedling pick-up position towards the bottom of the planting surface of該根pot against root ball of seedlings after piercing seedlings Totsume sideways posture taken out seedlings from seedling tray by causing retraction while lifting the seedlings Totsume, then from this seedling pick-up position to the seedling release position seedlings Totsume moved while the posture change downward orientation from a horizontal position, the seedling release position And after releasing the seedling from the seedling picking nail , comprising a seedling removal mechanism for returning the seedling picking nail to a seedling removal position while changing the posture from a downward posture to a horizontal posture ,
From seedling release position of the movement trajectory below the partial trajectory for carrying the seedlings to the seedling release position from the seedling taking out position of the movement locus of the tip of the seedling Totsume which reciprocates between the seedling pick-up position and seedling release position In the transplanting machine in which the partial trajectory returning to the seedling extraction position is located , and these partial trajectories are formed in an inclined shape downward from the seedling extraction position to the seedling discharge position ,
Wherein the seedling release position of the movement locus of the tip of the seedling Totsume below the partial trajectory leading to the seedling taking out position, seedling taking out position I along the partial trajectory for carrying the seedlings to the seedling release position from the seedling taking out position of the movement locus It is formed in a slanting direction downward from the seedling discharge position and can be set to a position that can be slidably contacted with the bottom of the root pot of the seedling being conveyed by the seedling picking nail or opposed to the seedling in a slightly separated state. Having a receiving surface and receiving a seedling being conveyed by a seedling claw,
This receiving tool is supported so as to be movable up and down, and by moving up and down, the receiving surface can be moved close to and away from the root pot that is transported from the seedling picking position to the seedling discharging position by the seedling picking claws . Furthermore, it is characterized in that the position can be adjusted freely.

これによれば、苗取爪によって搬送中の苗が該苗取爪から外れて落下する場合にも、該苗は苗受け手段に受け止められる。これにより、該苗の畝への落下は防止される。また、苗放出位置にて苗を放出した苗取爪は、受け具の受け面に当接することなく苗取出位置に戻ることとなる。
また、苗放出位置にて苗取爪の下方に位置する植付カップに苗を放出するよう構成され、受け具の苗放出位置側となる端部には、植付カップに向けて屈曲形成された屈曲部が設けられていることが好ましい。
According to this, even when the seedling being conveyed is removed from the seedling catching nail and dropped by the seedling catching nail, the seedling is received by the seedling receiving means. As a result, the seedling is prevented from falling onto the cocoon. In addition, the seedling picking nail that has released the seedling at the seedling discharging position returns to the seedling extracting position without coming into contact with the receiving surface of the receiving tool.
Further, the seedling is configured to be discharged to a planting cup located below the seedling catching nail at the seedling release position, and the end of the receiver on the seedling release position side is bent toward the planting cup. It is preferable that a bent portion is provided .

また、前記苗取出機構は、前記苗の根鉢の植付面から前記苗取爪を突き刺した状態で前記苗を搬送するものであり、前記受け具は、苗放出位置側に傾いた斜め上方に移動調整することにより、受け面を前記苗取爪によって搬送中の苗の根鉢の底部に摺接可能又は僅かに離間した状態で対向する位置に設定可能とされていることが好ましい。
これによれば、苗取爪から落下してしまう状態となった搬送中の苗は、根鉢から苗取爪が外れてしまう位置まで落下する前に、該根鉢の底部が受け面によって受け止められる。このため、根鉢は苗取爪に突き刺されている状態に保たれ、該苗取爪による苗の保持状態は維持される。これにより、該苗は、根鉢の底部を受け面によって支持された状態で苗取爪に搬送される。即ち、該苗は、苗取爪に引きずられつつ該受け面上を摺動して苗取出位置から苗放出位置まで搬送されることとなる。
In addition, the seedling removal mechanism conveys the seedling in a state where the seedling picking claw is pierced from the planting surface of the root pot of the seedling, and the receiver is obliquely upward inclined toward the seedling discharge position side. It is preferable that the receiving surface can be slidably brought into contact with the bottom of the root pot of the seedling being conveyed by the seedling catching nail or can be set at a position facing it in a slightly spaced state.
According to this, the seedling under transportation that has fallen from the seedling catching nail is received by the receiving surface at the bottom of the rootpot before falling to a position where the seedling catching nail is removed from the root pot. It is done. For this reason, the root pot is kept in a state of being pierced by the seedling nail, and the holding state of the seedling by the seedling nail is maintained. Thereby, this seedling is conveyed to the seedling nail in a state where the bottom of the root pot is supported by the receiving surface. That is, the seedling slides on the receiving surface while being dragged by the seedling picking nail and is transported from the seedling removal position to the seedling discharge position.

本発明によれば、苗取爪によって搬送される苗の畝への落下を防止することができる。   ADVANTAGE OF THE INVENTION According to this invention, the fall to the cocoon of the seedling conveyed with the seedling picking nail | claw can be prevented.

以下、本発明の実施の形態を図面に基づいて説明する。
図9に示す如く、本実施の形態の移植機1は、走行機体2の後部に移植装置3及び操縦ハンドル4を備えている。また、該移植機1は、畝Rを跨いだ状態で該畝Rの伸びている方向(図9の左右方向)に前進走行しながら、ソイルブロック苗(根鉢付きの苗。以下、苗Nという)を畝Rに所定間隔毎に植え付ける。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 9, the transplanter 1 of the present embodiment includes a transplanter 3 and a steering handle 4 at the rear part of the traveling machine body 2. In addition, the transplanter 1 travels forward in the direction in which the ridge R extends (the left-right direction in FIG. 9) while straddling the ridge R, while the soil block seedling (seed with a root pot; hereinafter, seedling N Are planted in ridges R at predetermined intervals.

走行機体2は、ミッションケース5の前部に架台6を前方突出状に固定し、該架台6にエンジン、燃料タンク、バッテリー等の車両機器(図示省略)を搭載している。また、該走行機体2は、操向輪としての左右一対の前輪9及び駆動輪としての左右一対の後輪10を縣架している。
左右一対の前輪9はそれぞれ、架台6の前部に枢支された前輪支軸11の左右端部に支持アーム12を介して支持されている。また、左右一対の後輪10は、ミッションケース5の左右両側から外方に突出している後輪支軸13の左右端部に伝動ケース14を介して支持されている。
In the traveling machine body 2, a gantry 6 is fixed to the front portion of the transmission case 5 so as to protrude forward, and vehicle devices (not shown) such as an engine, a fuel tank, and a battery are mounted on the gantry 6. The traveling machine body 2 has a pair of left and right front wheels 9 as steering wheels and a pair of left and right rear wheels 10 as drive wheels.
The pair of left and right front wheels 9 are respectively supported by support arms 12 on left and right ends of a front wheel support shaft 11 pivotally supported on the front portion of the gantry 6. Further, the pair of left and right rear wheels 10 are supported on the left and right ends of the rear wheel support shaft 13 projecting outward from the left and right sides of the transmission case 5 via a transmission case 14.

左右同側に位置する前輪支軸11の端部と後輪支軸13の端部とは、連動ロッド15及びアームを介して連動連結されている。また、架台6には、後輪支軸13に連結された連動部材17を動作させるアクチュエータ(油圧シリンダ)16が配備されている。該アクチュエータ16を作動させることにより、連動部材17及び連動ロッド15等を介して前輪支軸11と後輪支軸13とが連動して回動する。これによって左右一対の前後輪9、10が同時に昇降し、走行機体2の畝Rに対する高さ調整が可能となる。   The end portion of the front wheel support shaft 11 and the end portion of the rear wheel support shaft 13 located on the left and right sides are interlocked and connected via an interlocking rod 15 and an arm. The gantry 6 is provided with an actuator (hydraulic cylinder) 16 that operates an interlocking member 17 connected to the rear wheel support shaft 13. By operating the actuator 16, the front wheel support shaft 11 and the rear wheel support shaft 13 are rotated in conjunction with each other via the interlocking member 17 and the interlocking rod 15. As a result, the pair of left and right front and rear wheels 9 and 10 are moved up and down simultaneously, and the height of the traveling machine body 2 with respect to the heel R can be adjusted.

エンジンの動力はミッションケース5から左右の後輪支軸13内の伝動軸及び伝動ケース14内の伝動手段等を介して後輪10に伝動されている。また、ミッションケース5からは、後方に突出された第1PTO軸18と、左右両側に突出した第2PTO軸19とから動力を取り出せるようになっている。
移植装置3は、走行機体2の後部に装着された移植フレーム21に設けられており、苗Nを畝Rに植え付ける植付機構22と、苗トレイTを載置して該苗トレイTを縦横に送る苗供給機構23と、該苗供給機構23に載置された苗トレイTから苗Nを取り出して植付機構22へ供給する苗取出機構24と、苗供給機構23の苗取出位置から植付機構22の苗放出位置に至るまで苗取出機構24によって搬送される苗Nを受ける苗受け手段28とを備えている。
The power of the engine is transmitted from the transmission case 5 to the rear wheel 10 via a transmission shaft in the left and right rear wheel support shafts 13 and transmission means in the transmission case 14. Further, from the mission case 5, power can be taken out from the first PTO shaft 18 protruding rearward and the second PTO shaft 19 protruding left and right.
The transplanting device 3 is provided on a transplanting frame 21 attached to the rear part of the traveling machine body 2. The transplanting mechanism 22 for planting the seedling N on the ridge R, and the seedling tray T are placed on the seedling tray T in the vertical and horizontal directions. A seedling supply mechanism 23 to be sent to the seedling, a seedling extraction mechanism 24 to extract the seedling N from the seedling tray T placed on the seedling supply mechanism 23 and supply it to the planting mechanism 22, and planting from the seedling extraction position of the seedling supply mechanism 23 A seedling receiving means 28 for receiving the seedling N conveyed by the seedling extraction mechanism 24 is provided until reaching the seedling discharge position of the attaching mechanism 22.

移植フレーム21は、ミッションケース5に固定された固定フレーム21Aと、第2PTO軸19に軸心回りに回動自在に取り付けられた可動フレーム21Bとを有している。固定フレーム21Aに苗供給機構23と苗取出機構24とが配備されると共に、可動フレーム21Bに植付機構22が配備されている。また、固定フレーム21Aの後端にハンドル4が固定されている。   The transplant frame 21 has a fixed frame 21A fixed to the mission case 5 and a movable frame 21B attached to the second PTO shaft 19 so as to be rotatable about the axis. A seedling supply mechanism 23 and a seedling extraction mechanism 24 are provided on the fixed frame 21A, and a planting mechanism 22 is provided on the movable frame 21B. The handle 4 is fixed to the rear end of the fixed frame 21A.

なお、苗トレイTは、プラスチック製で、薄肉に形成されていて可撓性を有し、縦横に所定ピッチで碁盤目状に配列された多数のポットPを備えている。苗Nは、苗トレイTのポットPに床土を充填し、該床土に播種して育苗することにより形成される根鉢nを有している。
図8に示す如く、ポットPは、奥方に向かうにつれて次第に断面形状を小さなものとする略四角錐形状(又は円錐形状)を呈している。また、ポットPの隅部はR面取りが施されており、底壁には通気、排水用の底孔Paが形成されている。
The seedling tray T is made of plastic, has a thin wall, is flexible, and includes a large number of pots P arranged vertically and horizontally at a predetermined pitch. The seedling N has a root pot n formed by filling the pot P of the seedling tray T with floor soil, seeding the floor soil and raising the seedling.
As shown in FIG. 8, the pot P has a substantially quadrangular pyramid shape (or conical shape) that gradually becomes smaller in cross section as it goes deeper. Further, the corner portion of the pot P is rounded and a bottom hole Pa for ventilation and drainage is formed on the bottom wall.

図9に示す如く、苗供給機構23は、苗トレイTの上面の高さ位置を後方に向かうにつれて高いものとする傾斜状に該苗トレイTを載置する苗載せ台25と、該苗載せ台25を左右方向に往復移動自在に支持する支持手段と、苗載せ台25に載置された苗トレイTを1つのポットPずつ間欠的に横配列方向に送る横送り手段と、該苗トレイTを1列ずつ縦配列方向に送る縦送り手段とを備えている。   As shown in FIG. 9, the seedling supply mechanism 23 includes a seedling platform 25 on which the seedling tray T is placed in an inclined shape so that the height position of the upper surface of the seedling tray T increases toward the rear, and the seedling mounting A support means for supporting the table 25 in a reciprocating manner in the left-right direction, a transverse feed means for intermittently feeding the seedling tray T placed on the seedling placement stand 25 one by one in the horizontal arrangement direction, and the seedling tray Vertical feed means for feeding T in the vertical arrangement direction one column at a time.

また、苗供給機構23は、横送り手段によって苗載せ台25を横送りして横一列の総てのポットPから苗Nを取り出した後、縦送り手段によってポットPの1ピッチ分だけ苗トレイTを縦送りし、次の横一列のポットPから苗Nを取り出し可能としている。
図1及び図2に示す如く、苗取出機構24は、苗載せ台25の前方側に配備されており、固定フレーム21Aに装着された支持台57に配備されたギヤボックス58と、該ギヤボックス58に支持されて第1PTO軸18からの動力を伝達される伝動軸59とを備えている。該伝動軸59の両端部は、ギヤボックス58の側方に突出している。
In addition, the seedling supply mechanism 23 feeds the seedling platform 25 by the lateral feed means to take out the seedling N from all the pots P in the horizontal row, and then the seedling tray for one pitch of the pot P by the vertical feed means. T is fed vertically and the seedling N can be taken out from the next horizontal row of pots P.
As shown in FIGS. 1 and 2, the seedling extraction mechanism 24 is provided on the front side of the seedling placing table 25, and a gear box 58 provided on a support table 57 mounted on the fixed frame 21A, and the gear box. And a transmission shaft 59 that is supported by 58 and to which the power from the first PTO shaft 18 is transmitted. Both end portions of the transmission shaft 59 protrude to the side of the gear box 58.

また、苗取出機構24は、左右一対の苗取爪32と、該左右一対の苗取爪32に嵌合する苗取り補助具34と、左右一対の苗取爪32及び苗取り補助具34を支持する苗爪台33と、該苗爪台33に苗トレイTのポットPに近接離間させる往復運動をさせる遊星歯車機構36と、左右一対の苗取爪32の先端32aをポットPに向けた横向き姿勢と下向き姿勢との間で該左右一対の苗取爪32の姿勢を変更させる姿勢変更手段37と、苗取り補助具34を動作させる補助具作動手段39とを備えている。   The seedling removal mechanism 24 includes a pair of left and right seedling picking claws 32, a seedling picking aid 34 that fits the pair of left and right seedling picking claws 32, and a pair of left and right seedling picking claws 32 and a seedling picking aid 34. The seedling claw base 33 to be supported, the planetary gear mechanism 36 that causes the seedling claw base 33 to reciprocate and move away from the pot P of the seedling tray T, and the tips 32a of the pair of right and left seedling claw 32 are directed to the pot P. A posture changing means 37 for changing the posture of the pair of left and right seedling picking claws 32 between a horizontal posture and a downward posture, and an auxiliary tool operating means 39 for operating the seedling collecting auxiliary tool 34 are provided.

各苗取爪32は、基端部に配備された縦軸32Bを介して互いの先端間隔を拡縮自在として苗爪台33に枢支されている。また、左右一対の苗取爪32の基端部の間には、苗取爪32の先端32aを互いに近接させる収縮方向に付勢するバネ製の収縮部材60が設けられている。
また、各苗取爪32は、断面L字状に形成されている。
Each seedling claw 32 is pivotally supported by a seedling claw base 33 through a longitudinal axis 32B arranged at the base end portion so that the distance between the tips can be expanded and contracted. Further, between the base end portions of the pair of left and right seedling catching claws 32, a spring-made shrinking member 60 is provided that biases the distal end 32a of the seedling catching claws 32 in the shrinking direction.
Moreover, each seedling nail | claw 32 is formed in the cross-section L-shape.

左右一対の苗取爪32は、図1に示す如く、ポットP内に進入して、苗Nの根鉢nの植付面から底面に向け、中心線より下側となる位置で突き刺し、左右から強制的に挟み込んで抱きかかえるように挟持する。
図5に示す如く、苗爪台33は、爪支軸61に回動自在に支持されたベース板33Aにブロック33Bを取り付けて構成されている。ベース板33Aは、回動アーム48を介して遊星歯車機構36に連結されている。また、該ブロック33Bの上面に左右一対の苗取爪32の縦軸32Bが枢支されている。
As shown in FIG. 1, the pair of left and right seedling catching claws 32 enter the pot P, stab at a position below the center line from the planting surface of the root pot n of the seedling N toward the bottom surface, Hold it so that it is forcibly inserted and held.
As shown in FIG. 5, the seedling claw stand 33 is configured by attaching a block 33 </ b> B to a base plate 33 </ b> A that is rotatably supported by a claw support shaft 61. The base plate 33 </ b> A is connected to the planetary gear mechanism 36 via the rotating arm 48. A vertical axis 32B of a pair of left and right seedling catching claws 32 is pivotally supported on the upper surface of the block 33B.

また、図6(a)及び図6(b)に示す如く、苗爪台33のブロック33Bには貫通孔が形成されている。該貫通孔には、苗取り補助具34の押動杆34Aが摺動自在に挿通支持されている。また、該押動杆34Aの先端には、左右一対の苗取爪32に嵌合する嵌合部材34Bが設けられている。該嵌合部材34Bの先端面は、図8に示す如く、左右一対の苗取爪32に突き刺した苗Nの根鉢nの植付面を押す押面34aとなっている。   Further, as shown in FIGS. 6A and 6B, a through-hole is formed in the block 33 </ b> B of the seedling claw stand 33. A push rod 34A of the seedling removal aid 34 is slidably inserted and supported in the through hole. Further, a fitting member 34B that fits the pair of left and right seedling catching claws 32 is provided at the tip of the push rod 34A. As shown in FIG. 8, the front end surface of the fitting member 34 </ b> B serves as a pressing surface 34 a that presses the planting surface of the root pot n of the seedling N pierced with the pair of left and right seedling catching claws 32.

図6(a)に示す如く、苗爪台33のベース板33Aには、揺動アーム40が支軸65を介して揺動自在に支持されている。また、該揺動アーム40の先端は、リンク部材66を介して苗取り補助具34の押動杆34Aの後端に連結されている。
また、揺動アーム40の中途部には、カムフォロア67が設けられている。該カムフォロア67は、爪支軸61に取り付けられたカム体41の外周面となるカム面41aに当接している。該カム面41aは、揺動アーム40の先端を爪支軸61から離間させて苗取り補助具34の嵌合部材34Bを左右一対の苗取爪32の基端側に位置させる大径部41bと、揺動アーム40の先端を爪支軸61に近接させて嵌合部材34Bを左右一対の苗取爪32の先端側に位置させる小径部41cとから構成されている。
As shown in FIG. 6A, the swing arm 40 is swingably supported on the base plate 33 </ b> A of the seedling claw stand 33 via a support shaft 65. The tip of the swing arm 40 is connected to the rear end of the push rod 34 </ b> A of the seedling removal aid 34 through a link member 66.
A cam follower 67 is provided in the middle of the swing arm 40. The cam follower 67 is in contact with a cam surface 41 a that is an outer peripheral surface of the cam body 41 attached to the claw support shaft 61. The cam surface 41 a has a large-diameter portion 41 b that positions the fitting member 34 B of the seedling removal aid 34 on the proximal end side of the pair of right and left seedling catching claws 32 by separating the tip of the swing arm 40 from the claw support shaft 61. And a small-diameter portion 41c that positions the fitting member 34B on the distal end side of the pair of left and right seedling catching claws 32 by bringing the tip of the swing arm 40 close to the claw support shaft 61.

苗爪台33のベース板33Aと揺動アーム40との間には、該揺動アーム40を爪支軸61に向かう方向に付勢するコイルスプリング製の付勢手段62が設けられている。
揺動アーム40、リンク部材66、カム体41及び付勢手段62等により、補助具作動手段39が構成されている。苗爪台33とカム体41との相対回動により、揺動アーム40は基端の支軸65を中心に往復揺動することとなり、これによって、苗取り補助具34の押動杆34Aが直線移動する。
Between the base plate 33 </ b> A of the seedling claw stand 33 and the swing arm 40, a biasing means 62 made of a coil spring that biases the swing arm 40 in a direction toward the claw support shaft 61 is provided.
The swinging arm 40, the link member 66, the cam body 41, the urging means 62, and the like constitute auxiliary tool operating means 39. Due to the relative rotation of the seedling claw stand 33 and the cam body 41, the swing arm 40 reciprocally swings around the support shaft 65 at the base end, whereby the pushing rod 34A of the seedling removal aid 34 is moved. Move straight.

図2に示す如く、複数の歯車からなる遊星歯車機構36は、爪支軸61とギヤボックス58との間に設けられている。該遊星歯車機構36の動作により、爪支軸61は、図7に示される往路と復路とが上下に乖離する略楕円軌跡Dを描いて運動する。
爪支軸61は、図2に示すギアボックス58の前記伝動軸59の一端に外嵌している歯車36aを反時計方向に回転させることにより、図7に示す略楕円軌跡Dの下側軌跡Ddを通って中心線Daのポット側端部に至り、中心線Da上から上側軌跡Duを通って中心線DaのポットPから最遠となる最遠端部に至る。
As shown in FIG. 2, the planetary gear mechanism 36 including a plurality of gears is provided between the claw support shaft 61 and the gear box 58. By the operation of the planetary gear mechanism 36, the claw support shaft 61 moves along a substantially elliptic locus D in which the forward path and the backward path shown in FIG.
The claw support shaft 61 rotates the gear 36a fitted on one end of the transmission shaft 59 of the gear box 58 shown in FIG. 2 in the counterclockwise direction, thereby lowering the lower locus of the substantially elliptic locus D shown in FIG. It passes through Dd to reach the pot side end of the center line Da, and passes from the center line Da to the farthest end portion farthest from the pot P of the center line Da through the upper locus Du.

図4及び図5に示す如く、姿勢変更手段37は、ベース板33Aの姿勢を制御することにより左右一対の苗取爪32の姿勢を制御するものであり、苗爪台33のベース板33Aの先端部に配備されたコロ49と、該コロ49に係合してその移動を案内するカム部材50とを備えている。
図2〜図4に示す如く、該カム部材50は、溝を形成することにより略円弧形状のカム面50Aを形成しており、取付け具を介してギヤボックス58に固定の取付け板70に固定されている。図7に示す如く、コロ49は、カム面50Aに案内されることにより、略円弧軌跡Eを描いて運動する。これにより、左右一対の苗取爪32の姿勢は、前記横向き姿勢と下向き姿勢との間で変更されることとなる。
As shown in FIGS. 4 and 5, the posture changing means 37 controls the posture of the pair of left and right seedling catching claws 32 by controlling the posture of the base plate 33 </ b> A. A roller 49 provided at the distal end portion and a cam member 50 that engages with the roller 49 and guides its movement are provided.
As shown in FIGS. 2 to 4, the cam member 50 forms a substantially arc-shaped cam surface 50 </ b> A by forming a groove, and is fixed to a mounting plate 70 fixed to the gear box 58 via a mounting tool. Has been. As shown in FIG. 7, the roller 49 moves while drawing a substantially arc locus E by being guided by the cam surface 50A. As a result, the postures of the pair of left and right seedling collecting claws 32 are changed between the lateral posture and the downward posture.

遊星歯車機構36による爪支軸61の略楕円軌跡D上の往復運動と、姿勢変更手段37によるベース板33Aの略円弧軌跡E上の往復運動とは、ギアボックス58から伝達される動力によって同時に展開されている。これらの運動が合成されることにより、左右一対の苗取爪32の先端32aは、図1及び図7に示す移動軌跡Mを描く運動をする。
該移動軌跡M上を移動する左右一対の苗取爪32は、先端32aをポットP内に位置させる苗取出位置に移動することにより、苗Nの根鉢nを突き刺し、これによって、苗NはポットPから取り出される。
The reciprocating motion of the claw support shaft 61 on the substantially elliptical locus D by the planetary gear mechanism 36 and the reciprocating motion of the base plate 33A on the substantially arc locus E by the attitude changing means 37 are simultaneously performed by the power transmitted from the gear box 58. Has been deployed. By combining these movements, the tips 32a of the pair of left and right seedling catching claws 32 move to draw a movement locus M shown in FIGS.
The pair of left and right seedling picking claws 32 that move on the movement trajectory M move to the seedling picking position where the tip 32a is located in the pot P, thereby piercing the root pot n of the seedling N. It is taken out from the pot P.

また、左右一対の苗取爪32を植付機構22の植付カップ26に対向させる苗放出位置に該左右一対の苗取爪32を移動させることにより、苗Nは該左右一対の苗取爪32から植付カップ26に向けて放出される。
また、該移動軌跡Mにおいては、苗取爪32が苗取出位置から苗放出位置に至る部分軌跡m1の下方に苗取爪32が苗放出位置から苗取出位置に至る部分軌跡m2を有している。
Further, by moving the pair of left and right seedling catching claws 32 to a seedling discharge position where the pair of right and left seedling catching claws 32 are opposed to the planting cup 26 of the planting mechanism 22, the seedling N has the pair of right and left seedling catching nails. 32 is discharged toward the planting cup 26.
In addition, in the movement trajectory M, the seedling claw 32 has a partial trajectory m2 from the seedling discharge position to the seedling extraction position below the partial trajectory m1 from the seedling extraction position to the seedling discharge position. Yes.

図9に示す如く、植付機構22は、畝Rに植え穴を形成すると共に該植え穴に苗Nを放出する植付カップ26と、該植付カップ26を上下移動させる植付駆動機構と、植え穴に放出された苗Nの左右両側から株際に土を押圧して苗Nの根鉢nを埋める覆土手段27とを備えている。植付カップ26は、植付駆動機構によって走行機体2の前後方向に短軸を有する上下に長い楕円軌跡を描く。   As shown in FIG. 9, the planting mechanism 22 includes a planting cup 26 that forms a planting hole in the heel R and discharges the seedling N into the planting hole, and a planting drive mechanism that moves the planting cup 26 up and down. And soil covering means 27 for pressing the soil from the left and right sides of the seedling N released into the planting hole to fill the root pot n of the seedling N. The planting cup 26 draws a vertically long elliptical locus having a short axis in the front-rear direction of the traveling machine body 2 by the planting drive mechanism.

また、図1及び図7に示す如く、苗受け手段28は、前記左右一対の苗取爪32の先端の移動軌跡Mよりも下方となる位置に配備されている。また、苗受け手段28は、移動軌跡Mに沿う受け面74を有する受け具75と、該受け具75を支持する支持部材76とを備えている。
受け具75の受け面74は、図1に示す如く、苗取出位置から苗放出位置に向けて下り方向に傾斜状に形成されている。また、該受け具75の苗放出位置側となる端部には、植付機構22の植付カップ26に向けて屈曲形成された屈曲部75aが設けられている。また、該受け具75の受け面74は、図2に示す如く、苗取出機構24のブロック33Bの幅と同等若しくは該幅よりも大きい幅を有して形成されており、少なくとも苗取出機構24によって搬送される苗Nの根鉢nよりも大きい幅を有するものとして構成されている。
Further, as shown in FIGS. 1 and 7, the seedling receiving means 28 is arranged at a position below the movement trajectory M of the tips of the pair of left and right seedling collecting claws 32. The seedling receiving means 28 includes a receiving tool 75 having a receiving surface 74 along the movement trajectory M, and a support member 76 that supports the receiving tool 75.
As shown in FIG. 1, the receiving surface 74 of the receiving device 75 is formed to be inclined downward from the seedling extraction position to the seedling discharge position. In addition, a bent portion 75 a that is bent toward the planting cup 26 of the planting mechanism 22 is provided at an end portion of the receiving device 75 on the seedling discharge position side. Further, as shown in FIG. 2, the receiving surface 74 of the receiver 75 is formed to have a width equal to or larger than the width of the block 33 </ b> B of the seedling extraction mechanism 24, and at least the seedling extraction mechanism 24. It is comprised as what has a larger width | variety than the root pot n of the seedling N conveyed by.

図1に示す如く、支持部材76は、受け具75の受け面74となる面の反対側の面に突設されている。また、該支持部材76の先端にはボルト孔77が開設されている。該ボルト孔77に挿通された状態でボルト等の締結具78が支持台57又は固定フレーム21Aに螺合しており、これによって受け具75は、支持部材76を介して支持台57又は固定フレーム21Aに連結支持されている。   As shown in FIG. 1, the support member 76 protrudes from the surface opposite to the surface that becomes the receiving surface 74 of the receiving device 75. A bolt hole 77 is formed at the tip of the support member 76. A fastener 78 such as a bolt is screwed into the support base 57 or the fixed frame 21 </ b> A while being inserted into the bolt hole 77, whereby the receiver 75 is connected to the support base 57 or the fixed frame via the support member 76. It is connected and supported by 21A.

また、ボルト孔77は長孔状に形成されている。これにより、支持台57又は固定フレーム21Aに対して受け具75を支持部材76と共に上下動させることができ、これにより、受け面74を苗取り出し軌跡Mに対して近接離間させることが可能となる。
該支持部材76を介して高さ調整をすることにより、受け具75は、受け面74を左右一対の苗取爪32によって搬送される苗Nの根鉢nの底部に摺接可能又は僅かに離間した状態で対向する位置に設定されている。
The bolt hole 77 is formed in a long hole shape. Accordingly, the support 75 can be moved up and down together with the support member 76 with respect to the support base 57 or the fixed frame 21 </ b> A, whereby the receiving surface 74 can be moved closer to and away from the seedling extraction locus M. .
By adjusting the height via the support member 76, the receiving device 75 can slidably contact the receiving surface 74 with the bottom of the root pot n of the seedling N conveyed by the pair of left and right seedling catching claws 32 or slightly. It is set to a position facing in a separated state.

また、受け具75の受け面74は前記左右一対の苗取爪32の移動軌跡Mの苗放出位置から苗取出位置に至る部分軌跡m2よりも下方に位置しており、これによって、左右一対の苗取爪32は受け面74に当接することはなく移動軌跡M上をスムーズに移動することとなる。
本実施の形態は以上の構成からなるものであって、次に、図7、図8等を用いて本実施の形態による苗取出し方法を説明する。
In addition, the receiving surface 74 of the receiver 75 is located below the partial trajectory m2 from the seedling discharge position to the seedling extraction position of the movement trajectory M of the pair of left and right seedling picking claws 32. The seedling claw 32 does not come into contact with the receiving surface 74 and moves smoothly on the movement trajectory M.
The present embodiment has the above-described configuration. Next, a seedling extraction method according to the present embodiment will be described with reference to FIGS.

先ず、ギアボックス58を介して遊星歯車機構36を動作させる。これにより、苗爪台33の爪支軸61を略楕円軌跡Dの下側軌跡Dd上に位置させる。
このとき、姿勢変更手段37も同時に作動しており、コロ49が略円弧軌跡E上を移動することにより、左右一対の苗取爪32の姿勢が下向き姿勢から先端32aをポットPに向けた横向き姿勢に移行する。そして、左右一対の苗取爪32は、この様な姿勢で取り出し位置のポットPに近接していき、苗Nの茎葉をすくい込む姿勢で該茎葉の下側に近づく。
First, the planetary gear mechanism 36 is operated via the gear box 58. As a result, the claw support shaft 61 of the seedling claw stand 33 is positioned on the lower locus Dd of the substantially elliptic locus D.
At this time, the posture changing means 37 is also operated at the same time, and the roller 49 moves on the substantially arc locus E, so that the posture of the pair of left and right seedling catching claws 32 changes from the downward posture to the lateral direction with the tip 32a facing the pot P. Transition to posture. The pair of left and right seedling catching claws 32 approach the pot P at the take-out position in such a posture, and approach the lower side of the stem and leaf in a posture for scooping the stem and leaf of the seedling N.

このような状態からさらに遊星歯車機構36の前記歯車36aを回転させることにより、爪支軸61は略楕円軌跡Dの下側軌跡Ddをポット側端部に向けて移動すると共に、姿勢変更手段37のコロ49は略円弧軌跡Eの後端側に向けて移動する。これにより、左右一対の苗取爪32の姿勢は略楕円軌跡Dの中心線Daと略平行の横向き姿勢となり、ポットP内の苗Nの根鉢nに突き刺さり始める。   By further rotating the gear 36a of the planetary gear mechanism 36 from such a state, the claw support shaft 61 moves the lower locus Dd of the substantially elliptic locus D toward the pot side end and the attitude changing means 37. The roller 49 moves toward the rear end side of the substantially circular arc locus E. Thereby, the posture of the pair of right and left seedling catching claws 32 becomes a horizontal posture substantially parallel to the center line Da of the elliptical locus D, and starts to pierce the root pot n of the seedling N in the pot P.

この状態からさらに前記歯車36aを回転させると、爪支軸61は略楕円軌跡Dの下側軌跡Ddをポット側端部まで移動すると共に、コロ49は略円弧軌跡Eの後端に達する。これにより、左右一対の苗取爪32は横向き姿勢で略直線的にポットP内へ進入して苗取出位置に達し、苗Nに突き刺さる。
ここで、左右一対の苗取爪32はポットPの下側の側縁と略平行に進入し、その先端32aはポットPの底孔Paから突出する位置まで突入する。
When the gear 36a is further rotated from this state, the claw support shaft 61 moves along the lower locus Dd of the substantially elliptic locus D to the pot side end, and the roller 49 reaches the rear end of the substantially arc locus E. As a result, the pair of left and right seedling collecting claws 32 enters the pot P substantially linearly in a sideways posture, reaches the seedling extraction position, and pierces the seedling N.
Here, the pair of left and right seedling catching claws 32 enter substantially parallel to the lower side edge of the pot P, and the tip 32a enters the position protruding from the bottom hole Pa of the pot P.

また、このとき、補助具作動手段39のカム体41が爪支軸61と共に回転することにより、揺動アーム40のカムフォロア67はカム面41aの小径部41cから大径部41bに当接する。これによって、揺動アーム40が揺動して嵌合部材34BはポットPから離れる方向に移動する。これにより、左右一対の苗取爪32が苗Nの根鉢nに完全に突き刺さるとき又はその直前から、該左右一対の苗取爪32の先端32aは収縮する。これによって、図2に示す左右一対の苗取爪32の先端間距離Lは収縮し、該収縮に伴って苗Nの根鉢nは左右一対の苗取爪32によって挟持されることとなるのである。   At this time, when the cam body 41 of the auxiliary tool operating means 39 rotates together with the claw support shaft 61, the cam follower 67 of the swing arm 40 comes into contact with the large diameter portion 41b from the small diameter portion 41c of the cam surface 41a. As a result, the swing arm 40 swings and the fitting member 34B moves away from the pot P. Thereby, the tip 32a of the pair of left and right seedling catching claws 32 contracts when the pair of right and left seedling catching nails 32 completely pierces the root pot n of the seedling N or immediately before that. As a result, the distance L between the tips of the pair of left and right seedling catching claws 32 shown in FIG. 2 contracts, and the root pot n of the seedling N is sandwiched between the pair of right and left seedling catching nails 32 along with the contraction. is there.

図7に示す如く、左右一対の苗取爪32が苗Nの根鉢nに完全に突き刺さった後、苗爪台33の爪支軸61は、遊星歯車機構36の動作によって略楕円軌跡Dのポット側端部に位置した状態から上側軌跡Du上を移動することとなる。該爪支軸61が略楕円軌跡Dの下側軌跡Ddから上側軌跡Duへ側面視略V字状に移動することにより、左右一対の苗取爪32はポットPに略向いた姿勢のまま、若干持ち上がりながらポットPから抜け出ることになる。これによって、苗NがポットPから抜け出るときの抵抗が小さくなり、苗Nの根鉢nの崩壊を招くことなく該苗NはポットPから取り出される。   As shown in FIG. 7, after the pair of right and left seedling catching claws 32 have completely pierced the root pot n of the seedling N, the claw support shaft 61 of the seedling claw stand 33 is moved along the substantially elliptical locus D by the operation of the planetary gear mechanism 36. The upper locus Du will be moved from the position located at the pot side end. When the claw support shaft 61 moves from the lower trajectory Dd to the upper trajectory Du in a substantially elliptical trajectory D in a substantially V shape in a side view, the pair of left and right seedling catching claws 32 remain in a posture substantially facing the pot P. You will get out of the pot P while lifting slightly. This reduces the resistance when the seedling N comes out of the pot P, and the seedling N is taken out from the pot P without causing the root pot n of the seedling N to collapse.

また、爪支軸61が略楕円軌跡Dの上側軌跡Duを最遠端部まで移動する間に、姿勢変更手段37のコロ49がカム面50Aに案内されて略円弧軌跡E上を移動する。これにより、左右一対の苗取爪32の姿勢はその先端32AをポットPに向けた横向き姿勢から下向き姿勢に移行する。そして、左右一対の苗取爪32が植付機構22の植付カップ26の上方となる苗放出位置に位置して下向き姿勢となったとき、又はその前後に補助具作動手段39のカムフォロア67がカム面41aの大径部41bから小径部41cに当接する。これにより、付勢手段62の弾性復帰力によって揺動アーム40の先端は爪支軸61に近接する方向に揺動する。これに伴って、嵌合部材34Bが左右一対の苗取爪32の基端側から先端側に向けて突出する。これによって、嵌合部材34Bの押面34aによって左右一対の苗取爪32に突き刺している苗Nは押し出され、下方に待機している植付カップ26へ放出されることとなる。   Further, while the claw support shaft 61 moves along the upper locus Du of the substantially elliptic locus D to the farthest end, the roller 49 of the posture changing means 37 is guided by the cam surface 50A and moves on the substantially arc locus E. As a result, the posture of the pair of left and right seedling catching claws 32 shifts from a lateral posture with the tip 32A toward the pot P to a downward posture. When the pair of left and right seedling catching claws 32 are positioned at the seedling discharge position above the planting cup 26 of the planting mechanism 22 and assume a downward posture, or before and after that, the cam follower 67 of the assisting device actuating means 39 is provided. The large diameter portion 41b of the cam surface 41a contacts the small diameter portion 41c. Thereby, the tip of the swing arm 40 swings in the direction approaching the claw support shaft 61 by the elastic return force of the biasing means 62. Accordingly, the fitting member 34B protrudes from the proximal end side to the distal end side of the pair of left and right seedling collecting claws 32. As a result, the seedling N pierced by the pair of left and right seedling catching claws 32 is pushed out by the pressing surface 34a of the fitting member 34B and released to the planting cup 26 waiting downward.

ここで、左右一対の苗取爪32に突き刺された状態で搬送される苗Nの下方に苗受け手段28の受け具75が位置している。これにより、図8に示す如く、苗供給機構23から苗Nを取り出す苗取出位置から植付機構22の植付カップ26の上方となる苗放出位置に至るまでに左右一対の苗取爪32から苗が外れてしまう場合にも、該苗Nは受け具75の受け面74によって受け止められ、該苗Nが畝Rに向けて落下してしまう虞は殆どない。   Here, the receiving tool 75 of the seedling receiving means 28 is located below the seedling N that is conveyed while being stabbed by the pair of left and right seedling collecting claws 32. Thus, as shown in FIG. 8, the pair of right and left seedling picking claws 32 extends from the seedling picking position where the seedling N is taken out from the seedling supply mechanism 23 to the seedling discharge position above the planting cup 26 of the planting mechanism 22. Even when the seedling is removed, the seedling N is received by the receiving surface 74 of the receiving device 75, and there is almost no possibility that the seedling N falls toward the ridge R.

また、受け具75の受け面74は、左右一対の苗取爪32によって搬送される苗Nの根鉢nの底部と接触若しくは僅かに離間した位置に配備されている。このため、搬送中に左右一対の苗取爪32の移動に伴って生じる遠心力の作用や根鉢nの崩壊等によって該左右一対の苗取爪32に狭持された状態を解かれた苗Nは、落下直後に受け面74に受け止められることとなり、これによって、左右一対の苗取爪32は苗Nから外れることはなく、根鉢nに突き刺された状態に維持される。   Further, the receiving surface 74 of the receiving tool 75 is disposed at a position that is in contact with or slightly separated from the bottom of the root pot n of the seedling N conveyed by the pair of left and right seedling collecting claws 32. For this reason, the seedling which has been unpinned by the pair of left and right seedling catching claws 32 due to the action of centrifugal force caused by the movement of the pair of right and left seedling catching claws 32 during transportation, the collapse of the root pot n, etc. N is received by the receiving surface 74 immediately after dropping, and thus the pair of left and right seedling catching claws 32 are not detached from the seedling N and are maintained in a state of being pierced by the root pot n.

そして、この状態においても左右一対の苗取爪32は苗放出位置に向けて移動してる。このため、苗Nは、該左右一対の苗取爪32に引きずられた状態で受け面74上を摺動して受け具75の屈曲部75aまで左右一対の苗取爪32によって搬送され、該屈曲部75aから植付カップ26に向けて落下することとなる。即ち、苗Nは、左右一対の苗取爪32による狭持状態を解かれた状態にあっても該左右一対の苗取爪32によって受け面74上を苗取り出し位置から苗放出位置に向けて摺動することにより、植付カップ26に送り込まれることとなるのである。   Even in this state, the pair of right and left seedling catching claws 32 are moving toward the seedling discharge position. For this reason, the seedling N is transported by the pair of left and right seedling catching claws 32 to slide on the receiving surface 74 in a state dragged by the pair of right and left seedling catching claws 32 to the bent portion 75a of the holder 75, It will fall toward the planting cup 26 from the bending part 75a. That is, the seedling N is placed on the receiving surface 74 from the seedling removal position to the seedling discharge position by the pair of right and left seedling catching claws 32 even when the pair of right and left seedling catching claws 32 is released. By sliding, it is fed into the planting cup 26.

苗Nの供給を受けた植付カップ26は、苗受領待機位置から畝Rまで下降して、該畝Rに植え穴を穿設しながら苗Nを該畝Rに植え付ける。
苗Nを放出した後の左右一対の苗取爪32は、略楕円軌跡Dの下側軌跡Ddを通ってポットPに近づく戻り動作をし、姿勢変更手段37によって略下向き姿勢から横向き姿勢に向けてその姿勢を変更して苗取り出し前の姿勢に戻り、これによって、左右一対の苗取爪32の先端32aは移動軌跡M上を1周することとなる。
The planting cup 26 that has received the supply of the seedling N descends from the seedling receiving standby position to the heel R, and plantes the seedling N into the heel R while drilling a planting hole in the heel R.
The pair of left and right seedling catching claws 32 after releasing the seedling N perform a return operation that approaches the pot P through the lower trajectory Dd of the substantially elliptical trajectory D, and is directed from the substantially downward posture to the lateral posture by the posture changing means 37. Then, the posture is changed to return to the posture before the seedling removal, and thereby the tips 32a of the pair of left and right seedling catching claws 32 make one round on the movement locus M.

本実施の形態によれば、苗受け手段28の受け具75によって、左右一対の苗取爪32により搬送される苗Nの畝Rへの落下が防止され、これによって、ポットRからの搬送に失敗した苗Nに起因する畝Rの植付け面の荒れが抑制されることとなる。また、搬送中に左右一対の苗取爪32による狭持状態を解かれた苗Nは、受け具75又は該受け具75と左右一対の苗取爪32とによって植付機構22の植付カップ26に搬送され、これによって畝Rに所定間隔毎に植え付けられるべき苗Nの抜けが抑制されることとなる。   According to the present embodiment, the holder 75 of the seedling receiving means 28 prevents the seedling N transported by the pair of left and right seedling catching claws 32 from falling onto the heel R, thereby enabling transportation from the pot R. Roughness of the planting surface of the cocoon R caused by the failed seedling N will be suppressed. In addition, the seedling N that has been released from being held by the pair of left and right seedling catching claws 32 during transport is received by the receiving tool 75 or the receiving tool 75 and the pair of left and right seedling catching claws 32. This prevents the seedlings N to be planted on the heel R at predetermined intervals.

以上、本発明の実施の形態を詳述したが、本発明は上記の実施の形態に限定されるものではない。例えば、受け具75の受け面74を左右一対の苗取爪32の総合軌跡Mに沿う曲面上に形成する場合にも、本実施の形態と同様の効果を奏する。また、受け面74の前後長さは苗供給機構23と植付機構22の間隔や苗取出機構24の左右一対の苗取爪32の移動長さに応じて適宜変更可能である。また、左右一対の苗取爪32の本数は、左右一対のものに限らず、1本、3本以上のものとしても構わない。   Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments. For example, when the receiving surface 74 of the receiving tool 75 is formed on a curved surface along the general locus M of the pair of left and right seedling catching claws 32, the same effects as in the present embodiment are obtained. The front-rear length of the receiving surface 74 can be appropriately changed according to the distance between the seedling supply mechanism 23 and the planting mechanism 22 and the moving length of the pair of left and right seedling picking claws 32 of the seedling picking mechanism 24. Further, the number of the pair of left and right seedling collecting claws 32 is not limited to the pair of left and right, and may be one, three or more.

また、移植機1を2条植えのものとする場合にも、本実施の形態と同様の効果を奏する。   In addition, when the transplanter 1 is a two-row planter, the same effects as in the present embodiment can be obtained.

植付装置を示す側面図である。It is a side view which shows a planting apparatus. 苗取出機構を示す平面図である。It is a top view which shows a seedling extraction mechanism. ギアボックスとカム部材とを示す側面図である。It is a side view which shows a gear box and a cam member. 回動アームを示す側面図である。It is a side view which shows a rotation arm. 連動部材を示す側面図である。It is a side view which shows an interlocking member. (a)は左右一対の苗取爪や揺動アーム等を示す側面図であり、(b)は苗取り補助具を示す断面図である。(A) is a side view showing a pair of left and right seedling collecting claws, a swing arm, and the like, and (b) is a cross-sectional view showing a seedling collecting aid. 爪支軸、コロ、左右一対の苗取爪の軌跡を示す側面図である。It is a side view which shows the locus | trajectory of a nail | claw support shaft, a roller, and a pair of right and left seedling collection claws. 左右一対の苗取爪によって苗を搬送している状態を示す側面図である。It is a side view which shows the state which is conveying the seedling with a pair of right and left seedling collection claws. 移植機の側面図である。It is a side view of a transplant machine.

1 移植機
3 移植装置
22 植付機構
23 苗供給機構
24 苗取出機構
26 植付カップ
28 苗受け手段
30 苗取出機構
32 苗取爪
74 受け面
75 受け具
76 支持部材
DESCRIPTION OF SYMBOLS 1 transplanting machine 3 transplanting device 22 planting mechanism 23 seedling supply mechanism 24 seedling extracting mechanism 26 planting cup 28 seedling receiving means 30 seedling extracting mechanism 32 seedling picking claw 74 receiving surface 75 receiving tool 76 support member

Claims (3)

苗取出位置にて苗(N)の根鉢(n)に対して該根鉢(n)の植付面から底部に向けて苗取爪(32)を横向き姿勢で突き刺した後に該苗取爪(32)を持上げながら後退させることにより苗トレイ(T)より苗(N)を取り出し、その後、この苗取出位置から苗放出位置へと苗取爪(32)を横向き姿勢から下向き姿勢に姿勢変更させながら移動させ、該苗放出位置にて該苗(N)を苗取爪(32)から放出させた後、該苗取爪(32)を下向き姿勢から横向き姿勢に姿勢変更させながら苗取出位置に戻す苗取出機構(24)を具備し、
前記苗取出位置と苗放出位置との間を往復移動する苗取爪(32)の先端(32a)の移動軌跡(M)苗取出位置から苗放出位置まで苗(N)を搬送する部分軌跡(m1)よりも下方に該移動軌跡(M)の苗放出位置から苗取出位置に戻る部分軌跡(m2)が位置しており、且つこれら部分軌跡(m1,m2)が苗取出位置から苗放出位置に向けて下り方向に傾斜状に形成されている移植機において、
前記苗取爪(32)の先端(32a)の移動軌跡(M)の苗放出位置から苗取出位置に至る部分軌跡(m2)の下方には、移動軌跡(M)の苗取出位置から苗放出位置まで苗(N)を搬送する部分軌跡(m1)に沿って苗取出位置から苗放出位置に向けて下り方向に傾斜状に形成されていて前記苗取爪(32)によって搬送中の苗(N)の根鉢(n)の底部に摺接可能又は僅かに離間した状態で対向する位置に設定可能とされた受け面(74)を有し且つ苗取爪(32)によって搬送中の苗(N)を受ける受け具(75)が設けられ、
この受け具(75)は上下動可能に支持されていて、上下動させることにより前記受け面(74)が苗取爪(32)によって苗取出位置から苗放出位置へと搬送される根鉢(n)に対して近接離間させることができるように、位置調整自在とされていることを特徴とする移植機。
The seedling nails are pierced in a lateral orientation from the planting surface of the root pot (n) toward the bottom with respect to the root pot (n) of the seedling (N) at the seedling extraction position, and then (32) was taken out seedlings (N) from seedling tray (T) by causing retraction while lifting, then attitude change seedlings Totsume (32) from the seedling pick-up position to the seedling release position from the horizontal position to the flat position moving while, after the該苗(N) at the seedling release position to release the seedlings Totsume (32), seedling taking out position while the posture change to landscape orientation該苗Totsume (32) from the flat position Equipped with a seedling removal mechanism (24) to return to
A partial trajectory for transporting the seedling (N) from the seedling extraction position to the seedling discharge position of the movement locus (M) of the tip (32a) of the seedling picking claw (32) that reciprocates between the seedling extraction position and the seedling discharge position. (m1) has partial trajectory returning from the seedling release position in seedling taking out position (m2) is the position of the movement locus downward (M) than, and these partial trajectory (m1, m @ 2) seedlings released from seedling pick-up position In the transplant machine that is formed in an inclined shape in the downward direction toward the position ,
Wherein the lower seedlings Totsume (32) tip portions trajectory (m2) leading to seedling taking out position from the seedling release position of the movement locus (M) of (32a) of the seedling release from seedling pick-up position of the movement locus (M) position to be formed in the seedling (N) inclined from seedling taking out position I along the downstream direction toward the seedling releasing position in partial trajectory (m1) for transporting the seedling during transport by said seedling Totsume (32) It has a receiving surface (74) that can be slidably contacted with the bottom of the root pot (n) of (N) or can be set at a position facing it in a slightly spaced state, and is being conveyed by the seedling claw (32) A receiver (75) for receiving the seedling (N) is provided,
This receptacle (75) is supported so as to be movable up and down, and by moving up and down, the receiving surface (74) is conveyed from the seedling extraction position to the seedling discharge position by the seedling picking nail (32) ( n) A transplanter characterized in that its position can be adjusted so that it can be moved close to and away from n) .
苗放出位置にて苗取爪(32)の下方に位置する植付カップ(26)に苗(N)を放出するよう構成され、受け具(75)の苗放出位置側となる端部には、植付カップ(26)に向けて屈曲形成された屈曲部(75a)が設けられていることを特徴とする請求項1に記載の移植機。   It is configured to release the seedling (N) to the planting cup (26) located below the seedling catching nail (32) at the seedling release position, The transplanter according to claim 1, wherein a bent portion (75a) bent toward the planting cup (26) is provided. 前記苗取出機構(24)は、前記苗(N)の根鉢(n)の植付面から前記苗取爪(32)を突き刺した状態で前記苗(N)を搬送するものであり、前記受け具(75)は、苗放出位置側に傾いた斜め上方に移動調整することにより、受け面(74)を前記苗取爪(32)によって搬送中の苗(N)の根鉢(n)の底部に摺接可能又は僅かに離間した状態で対向する位置に設定可能とされていることを特徴とする請求項1又は2に記載の移植機。 The seedling removal mechanism (24) conveys the seedling (N) in a state where the seedling picking nail (32) is pierced from the planting surface of the root pot (n) of the seedling (N), The receptacle (75) is moved and adjusted obliquely upward inclined toward the seedling discharge position side, whereby the root surface (n) of the seedling (N) being conveyed by the seedling catching nail (32) on the receiving surface (74). The transplanter according to claim 1, wherein the transplanter can be slidably contacted with the bottom portion of the body or can be set at a position facing the bottom of the bottom portion.
JP2006009006A 2006-01-17 2006-01-17 Transplanter Active JP4864467B2 (en)

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