JP5359049B2 - Seedling transplanter - Google Patents

Seedling transplanter Download PDF

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JP5359049B2
JP5359049B2 JP2008161220A JP2008161220A JP5359049B2 JP 5359049 B2 JP5359049 B2 JP 5359049B2 JP 2008161220 A JP2008161220 A JP 2008161220A JP 2008161220 A JP2008161220 A JP 2008161220A JP 5359049 B2 JP5359049 B2 JP 5359049B2
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seedling
planting
supply
container
height
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JP2010000033A (en
JP2010000033A5 (en
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勝野  志郎
村並  昌実
大久保  嘉彦
英明 黒瀬
土井  宏貴
暢宏 山根
幸太 東
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Iseki and Co Ltd
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Iseki and Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling transplanter equipped with a seedling feeder capable of suitably housing seedlings in a seedling-housing body, even if they have a longer height or a shorter height than usual height. <P>SOLUTION: This seedling transplanter is provided by arranging a plurality of seedling-feeding cups 25 for housing the seedlings as a loop form, and circulating/transferring them so as to pass through in the upper direction of each of seedling-transplanting bodies one by one. When the cup 25 moves to a dropping/feeding position becoming the upper position of the seedling-transplanting body, the seedling is dropped to be fed from the cup 25 to a seedling-transplanting body moved up by a vertical moving mechanism, and the seedling is transplanted by moving down the seedling-transplanting body receiving the seedling with the vertical moving mechanism. Here, the seedling-feeding cups 25 are provided by having a tubular body, in order to change its height, enabling the mounting of extension sleeves 25' to the seedling-feeding cups 25 and installing a seedling-positioning stage height-changing mechanism 33c arranged at the inside of the passage of the plurality of the seedling-feeding cups 25 circulating/transferring as the loop form by a view from above and capable of changing their heights to a height overlapping with the height-changing range of the upper end of the cups 25. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

この発明は、複数の苗植付体を左右に配列した複数条植え可能な苗移植機に関する。   The present invention relates to a seedling transplanter capable of planting a plurality of seedlings by arranging a plurality of seedling transplanted bodies on the left and right.

上下動機構により所定の作動軌跡で上下動して圃場に苗を植え付ける構成のくちばし状の苗植付体を左右に各々設け、該左右各々の苗植付体へ苗を供給する苗供給装置を設け、前記苗供給装置は、苗を収容する複数の苗収容体となる苗供給カップと、該複数の苗供給カップを所定の配列ピッチでループ状に配置し、順次各々の苗植付体の上方を通過するように周回移動させるスプロケット等からなる移動機構と、苗供給カップの底蓋を閉状態で支持する底蓋支持部材を苗植付体の上方位置となる落下供給位置で欠如させた構成として、移動機構により苗供給カップが前記落下供給位置に移動すると前記底蓋を開いて苗供給カップが収容する苗を上下動機構で上動した苗植付体へ落下供給させる苗落下供給機構とを備え、該苗落下供給機構は、左右各々の苗植付体に対応する左右各々の落下供給位置を備えると共に、一方の落下供給位置で落下供給する苗を収容する第一の苗供給カップと他方の落下供給位置で落下供給する苗を収容する第二の苗供給カップとを各別に且つ周回移動経路に沿って交互に設けて、前記第一及び第二の苗供給カップが移動機構による周回移動で各々の落下供給位置に同じ回数到達する構成とした複数条植えの苗移植機において、各々の苗植付体の下部を左右方向に偏位させ、各々の苗植付体による苗植付位置を各々の落下供給位置に対して若干左右方向にずらせて所望の苗植付位置ひいては植付条間で苗を植え付けできるようにしたものがある(特許文献1参照)。
特開2006−94832号公報
A seedling supply device that is provided with a beak-shaped seedling planting body configured to plant a seedling in a field by moving up and down with a predetermined operation trajectory by a vertical movement mechanism, and supplying seedlings to the left and right seedling planting bodies The seedling supply device is provided with a seedling supply cup serving as a plurality of seedling containers for storing seedlings, and a plurality of seedling supply cups arranged in a loop at a predetermined arrangement pitch. The movement mechanism consisting of a sprocket that moves around so as to pass through the upper part, and the bottom cover support member that supports the bottom cover of the seedling supply cup in a closed state are lacked at the drop supply position that is the upper position of the seedling planting body. As a configuration, a seedling drop supply mechanism that opens the bottom lid when the seedling supply cup is moved to the drop supply position by a moving mechanism and supplies the seedlings stored in the seedling supply cup to the seedling planted body moved up by the vertical movement mechanism The seedling drop supply mechanism comprises A first seedling supply cup for storing seedlings to be supplied at one fall supply position and a seedling to be supplied at the other fall supply position, with right and left drop supply positions corresponding to each right seedling planting body And the second seedling supply cups for accommodating the first and second seedling supply cups alternately and along the circular movement path, the first and second seedling supply cups are moved to the respective drop supply positions by the circular movement by the moving mechanism. In the multi-row seedling transplanter configured to reach, the lower part of each seedling planting body is displaced in the left-right direction, and the seedling planting position by each seedling planting body is relative to each fall supply position There is one in which it is possible to plant seedlings between desired planting positions and thus between planting strips by slightly shifting in the left-right direction (see Patent Document 1).
JP 2006-94832 A

上記特許文献1記載の苗移植機では、苗供給装置の苗収容体の移動機構は、苗収容体を平面視でループ状に連結し、機体の進行方向に向かって左右方向に長い長円軌道を描かせて周回移動する構成を備えている。   In the seedling transplanting machine described in Patent Document 1, the moving mechanism of the seedling container of the seedling supply device connects the seedling container in a loop shape in a plan view and is an elliptical orbit that is long in the left-right direction toward the traveling direction of the body. It is equipped with a structure that moves around.

上記構成の苗収容体の移動機構における苗収容体の配置高さを変更することはできない構成であるため、例えば丈の長い苗を苗収容体内に収容する場合には苗置台から苗収容体に苗を補給する場合には苗を高く持ち上げ後に苗収容体内に補給するため、苗の苗置台から苗収容体への補給に手間が掛かっていた。 Since the arrangement height of the seedling container in the moving mechanism of the seedling container having the above configuration cannot be changed, for example, when a long seedling is stored in the seedling container, the seedling holder is transferred from the seedling stand to the seedling container. because if you supply the seedlings to be supplied to the seedling containing body after lifting high seedlings, it takes time and effort from the seedling stage of seedlings to supply to the seedling container.

そこで、本発明の課題は、丈の長さが通常より長過ぎても、短か過ぎても苗を苗収容体内に適切に収容することができる苗供給装置を備えた苗移植機を提供することである。また、苗収容体を安定して周回させることができる苗供給装置を備えた苗移植機を提供することである。 Therefore, an object of the present invention is to provide a seedling transplanter equipped with a seedling supply device that can appropriately accommodate seedlings in a seedling container even if the length is too long or too short. That is. Moreover, it is providing the seedling transplanting machine provided with the seedling supply apparatus which can be made to circulate a seedling container stably.

この発明は、上記課題を解決すべく次のような技術的手段を講じた。
すなわち、請求項1に係る発明は、苗を収容する複数の筒状体である苗収容体(25)と、該複数の苗収容体(25)を所定の配列ピッチでループ状に配置し、順次周回移動させる移動機構(26)と、該移動機構(26)により苗収容体(25)が所定の落下供給位置(39,40)に移動すると苗収容体(25)が収容する苗を落下させる苗落下供給機構(27)と、所定の作動軌跡で上下動して前記落下供給位置(39,40)で苗収容体(25)から苗を受け取って植え付ける苗植付体(5)とを備え、苗収容体(25)の浮き上がりを防止するためのつば部を、苗収容体(25)の外周に設け、苗収容体(25)を周回させるための駆動部材(35,35b)が、つば部に上側から当接することにより、苗収容体(25)の浮き上がりを防止する構成としたことを特徴とする苗移植機である。
また、請求項2に係る発明は、苗を収容する複数の筒状体である苗収容体(25)と、該複数の苗収容体(25)を所定の配列ピッチでループ状に配置し、順次周回移動させる移動機構(26)と、該移動機構(26)により苗収容体(25)が所定の落下供給位置(39,40)に移動すると苗収容体(25)が収容する苗を落下させる苗落下供給機構(27)と、所定の作動軌跡で上下動して前記落下供給位置(39,40)で苗収容体(25)から苗を受け取って植え付ける苗植付体(5)とを備え、苗収容体(25)の上端の高さを変更可能な苗収容体高さ変更機構を設け、平面視で苗収容体(25)の周回経路の内側には苗置台(34)を設け、苗置台(34)の高さを変更可能な苗置台高さ変更機構(33c)を設け、苗置台高さ変更機構(33c)による苗置台(34)の高さ変更に連動して、苗収容体高さ変更機構により苗収容体(25)の上端の高さが変更される構成としたことを特徴とする苗移植機である。
また、請求項3に係る発明は、二つの孔を有する連結体(28)を設け、前記二つの孔に隣接する苗収容体(25)を挿入して各々の苗収容体(25)を回動自在に連結体(28)に係合させることにより、複数の苗収容体(25)を所定の配列ピッチで連結する構成とし、連結体(28)によりつば部を構成したことを特徴とする請求項1又は請求項2に記載の苗移植機である。
In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 arranges a plurality of seedling containers (25), which are a plurality of cylindrical bodies that store seedlings, and a plurality of seedling containers (25) in a loop at a predetermined arrangement pitch, A moving mechanism (26) that sequentially moves around, and when the seedling container (25) is moved to a predetermined drop supply position (39, 40) by the moving mechanism (26), the seedling stored in the seedling container (25) is dropped. A seedling drop supply mechanism (27) to be moved up and down and a seedling planting body (5) to move up and down along a predetermined operation locus and receive and plant seedlings from the seedling container (25) at the drop supply position (39, 40) Provided with a collar portion for preventing the seedling container (25) from being lifted on the outer periphery of the seedling container (25), and driving members (35, 35b) for rotating the seedling container (25), Floating the seedling container (25) by contacting the collar from above A seedling transplantation machine, characterized in that a structure for preventing Ri.
Moreover, the invention which concerns on Claim 2 arrange | positions the seedling container (25) which is a some cylindrical body which accommodates a seedling, and arrange | positions this several seedling container (25) in a loop form by the predetermined | prescribed arrangement pitch, A moving mechanism (26) that sequentially moves around, and when the seedling container (25) is moved to a predetermined drop supply position (39, 40) by the moving mechanism (26), the seedling stored in the seedling container (25) is dropped. A seedling drop supply mechanism (27) to be moved up and down and a seedling planting body (5) to move up and down along a predetermined operation locus and receive and plant seedlings from the seedling container (25) at the drop supply position (39, 40) Provided, a seedling container height changing mechanism capable of changing the height of the upper end of the seedling container (25) is provided, and a seedling stand (34) is provided inside the circulation path of the seedling container (25) in plan view, A seedling stand height changing mechanism (33c) capable of changing the height of the seedling stand (34) is provided. In conjunction with the height change of the change mechanism (33c) seedling stage by (34), to characterized in that the upper end of the height of the seedling container (25) is configured to be changed by the seedling storage body height changing mechanism This is a seedling transplanter.
According to a third aspect of the present invention, a connecting body (28) having two holes is provided, and a seedling container (25) adjacent to the two holes is inserted to rotate each seedling container (25). A plurality of seedling containers (25) are connected at a predetermined arrangement pitch by being movably engaged with the connection body (28), and a collar portion is formed by the connection body (28). A seedling transplanting machine according to claim 1 or claim 2.

請求項1に係る発明によると、苗収容体(25)の外周に設けたつば部により、苗収容体(25)の浮き上がりを防止でき、苗収容体(25)を安定して周回させることができ、苗収容体(25)を周回させるための駆動部材(35,35b)により、苗収容体(25)の浮き上がりを防止できる。
請求項2に係る発明によると、苗置台(34)の高さを苗収容体(25)の上端の近くに変更できるので、苗置台(34)から苗収容体(25)への苗補給が容易に、かつ作業性良く行える。
請求項3に係る発明によると、請求項1又は請求項2に係る発明の効果に加えて、連結体(28)をつば部として機能させることができる
According to the invention which concerns on Claim 1, the collar part provided in the outer periphery of the seedling container (25) can prevent the seedling container (25) from being lifted, and the seedling container (25) can be circulated stably. It is possible to prevent the seedling container (25) from being lifted by the driving members (35, 35b) for rotating the seedling container (25).
According to the invention which concerns on Claim 2, since the height of the seedling stand (34) can be changed near the upper end of the seedling container (25), the seedling replenishment from the seedling holder (34) to the seedling container (25) is possible. It can be done easily and with good workability.
According to the invention of claim 3, in addition to the effects of the invention of claim 1 or claim 2, the coupling body (28) can function as a collar portion .

この発明の実施の一形態の苗移植機1を図面と共に以下に説明する。
図1は本発明の一実施例の苗移植機の側面図であり、図2は、図1の苗移植機の後鎮圧輪の図示を省略した苗移植機の平面図であり、図8は、図1の苗移植機の支持体を示した平面図(図8(a)は狭い植付条間のとき、図8(b)は広い植付条間のとき)であり、図9は、図1の苗植付装置23を示す斜視図である。なお、以下の説明では、操縦ハンドル2を配置した機体側を後とし、その反対側、即ちエンジン3を配置した機体側を前とする。そして、機体後部において機体前部側に向って立つ作業者の右手側を右とし、左手側を左とする。
A seedling transplanter 1 according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a side view of a seedling transplanting machine according to an embodiment of the present invention, FIG. 2 is a plan view of the seedling transplanting machine in which the illustration of a rear pressure ring of the seedling transplanting machine of FIG. 1 is omitted, and FIG. 1 is a plan view showing the support of the seedling transplanter of FIG. 1 (FIG. 8 (a) is between narrow planting strips, FIG. 8 (b) is between wide planting strips), FIG. FIG. 2 is a perspective view showing a seedling planting device 23 in FIG. 1. In the following description, the body side on which the steering handle 2 is disposed is the rear, and the opposite side, that is, the body side on which the engine 3 is disposed is the front. Then, the right hand side of the worker standing toward the front side of the machine body at the rear part of the machine body is set to the right, and the left hand side is set to the left.

苗移植機1は、走行装置と操縦ハンドル2を備えた機体に昇降駆動する上下動機構4と連結して昇降動作する開閉可能なくちばし状の苗植付体5を備えているが、走行装置は、転動自在に支持した左右一対の前輪6とエンジン3の動力が伝達されて駆動回転する左右一対の後輪7とを備えたものとしている。この前輪6及び後輪7を畝溝に案内して、機体は畝上方で走行することができる。   The seedling transplanter 1 includes a beak-like seedling planting body 5 that can be opened and closed by being connected to a vertical movement mechanism 4 that is driven to move up and down to a machine body that includes a traveling device and a steering handle 2. Is provided with a pair of left and right front wheels 6 supported so as to be able to roll and a pair of left and right rear wheels 7 which are driven and rotated by transmission of the power of the engine 3. The front wheel 6 and the rear wheel 7 are guided in the gutter groove, and the aircraft can travel above the gutter.

エンジン3の後部にはミッションケース8を配置し、そのミッションケース8内にはエンジン3の出力軸が入り込んでおり、エンジン3の出力軸からミッションケース8内の伝動機構にエンジン動力が伝達される構成となっている。ミッションケース8の左右両側部にチェーン伝動ケース9を回動支点9aを中心に回動自在に取り付け、このチェーン伝動ケース9の回動支点9aにミッションケース8から左右両外側方に延出させた車輪駆動軸の先端が入り込んでチェーン伝動ケース9内の伝動機構に走行用の動力を伝達している。そして、走行用の動力はチェーン伝動ケース9内の伝動機構を介して機体後方側に伸びてその後端側側方に突出する車軸10に伝動し、後輪7が駆動回転するようになっている。   A mission case 8 is disposed at the rear of the engine 3, and the output shaft of the engine 3 enters the mission case 8, and engine power is transmitted from the output shaft of the engine 3 to the transmission mechanism in the mission case 8. It has a configuration. A chain transmission case 9 is attached to both left and right sides of the transmission case 8 so as to be rotatable about a rotation fulcrum 9a, and is extended from the transmission case 8 to the left and right outer sides on the rotation fulcrum 9a of the chain transmission case 9. The tip of the wheel drive shaft enters and transmits driving power to the transmission mechanism in the chain transmission case 9. The traveling power is transmitted to the axle 10 that extends to the rear side of the machine body and protrudes to the rear end side via the transmission mechanism in the chain transmission case 9, and the rear wheel 7 is driven to rotate. .

左右水平用油圧式の伸縮作動可能なローリングシリンダ11が機体の左側に設けられ、該左右水平用ローリングシリンダ11のピストンロッド先端に上下軸心周りに回動自在に天秤杆12が取り付けられている。また、天秤杆12の連結部の右側はロッド13に連結している。   A horizontal horizontal hydraulic rolling cylinder 11 that can be expanded and contracted is provided on the left side of the fuselage, and a balance rod 12 is attached to the tip of the piston rod of the horizontal horizontal cylinder 11 so as to be rotatable about the vertical axis. . Further, the right side of the connecting portion of the balance rod 12 is connected to the rod 13.

機体中央部に設けられた昇降用油圧シリンダ14が後述する前鎮圧輪15で構成される畝高さ検知センサの検出結果に基づいて、そのピストンロッド14aが機体後方に突出すると、ロッド13や左右水平制御用ローリングシリンダ11も後方に移動し、前記ロッド13とローリングシリンダ11にそれぞれ連結しているアーム16が機体側面視で後方に回動し、これに伴い左右のチェーン伝動ケース9が回動支点9aを中心に下方に回動して左右の後輪7が下降し、機体が上昇する。反対に、昇降用油圧シリンダ14のピストンロッド14aが機体前方に引っ込むと、左右の前記アーム16は前方に回動し、これに伴いチェーン伝動ケース9が回動支点9aを中心に上方に回動して左右の後輪7が上昇し、機体が下降する。   Based on the detection result of the saddle height detection sensor in which the lifting hydraulic cylinder 14 provided at the center of the body is composed of a front pressure reducing wheel 15 described later, when the piston rod 14a protrudes rearward, the rod 13 and the left and right The horizontal control rolling cylinder 11 also moves rearward, and the arms 16 connected to the rod 13 and the rolling cylinder 11 rotate rearward in a side view of the machine body, and accordingly the left and right chain transmission cases 9 rotate. The left and right rear wheels 7 are moved downward about the fulcrum 9a, and the airframe is raised. On the contrary, when the piston rod 14a of the lifting hydraulic cylinder 14 is retracted forward, the left and right arms 16 are rotated forward, and accordingly, the chain transmission case 9 is rotated upward around the rotation fulcrum 9a. As a result, the left and right rear wheels 7 are raised and the aircraft is lowered.

また、前記左右水平制御用ローリングシリンダ11が伸縮作動すると、左側のチェーン伝動ケース9のみを上下動させて左側の後輪7のみを昇降し、機体を左右に傾斜させる。この左右水平制御用ローリングシリンダ11は、左右水平に対する機体の左右傾斜を検出するセンサ(図示せず)の検出結果に基づいて機体を左右水平になるように作動する構成にしている。   Further, when the left and right horizontal control rolling cylinder 11 is extended and contracted, only the left chain transmission case 9 is moved up and down, and only the left rear wheel 7 is moved up and down to tilt the machine body to the left and right. The left / right horizontal control rolling cylinder 11 is configured to operate so that the airframe is horizontally horizontal based on a detection result of a sensor (not shown) that detects right / left inclination of the airframe relative to the left / right horizontal.

一対の前輪6は、エンジン3の下方の左右中央位置から左右に延びる前輪支持フレーム17の左右両側部の下方に延びるアーム部分18の下端部側方に固定した車軸19に回転自在に取り付けている。   The pair of front wheels 6 is rotatably attached to an axle 19 fixed to the side of the lower end of an arm portion 18 that extends downward from the left and right sides of the front wheel support frame 17 that extends from the left and right center position below the engine 3 to the left and right. .

操縦ハンドル2は、ミッションケース8に前端部を固定した機体フレーム20の後端部に取り付けられている。機体フレーム20は、機体の左右中央に配置されて後方に延び、また、前後中間部から斜め後上方に延びている。操縦ハンドル2は、機体フレーム20の後端部から左右に後方に延びてその各後端部を操縦ハンドル2のグリップ部2a,2aとしている。操縦ハンドル2の左右のグリップ部2a,2aは、作業者がそのグリップ部2a,2aを楽に手で握れるように適宜高さに設定する。なお、図例ではグリップ部2a,2aを左右に分かれた構成としているが、操縦ハンドル2の左右の後端部を互いに左右に連結してその連結部分をグリップ部2aとしても良い。   The steering handle 2 is attached to the rear end portion of the body frame 20 whose front end portion is fixed to the mission case 8. The body frame 20 is disposed at the center of the left and right sides of the body and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends rearward from the rear end portion of the body frame 20 to the left and right, and the rear end portions thereof serve as grip portions 2 a and 2 a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion 2a.

苗植付体5作動用の上下動機構4は、ミッションケース8内から苗植付体5を駆動させる動力を伝動軸21を介して伝動する伝動機構を内装する植付伝動ケース22に装着している。植付伝動ケース22内には苗植付体上下動機構4を昇降駆動するための動力を伝達する伝動機構を内装している。   The vertical movement mechanism 4 for operating the seedling planting body 5 is mounted on a planting transmission case 22 having a transmission mechanism for transmitting the power for driving the seedling planting body 5 from the transmission case 8 via the transmission shaft 21. ing. In the planting transmission case 22, a transmission mechanism for transmitting power for driving the seedling planting body vertical movement mechanism 4 to move up and down is provided.

なお、植付伝動ケース22内の伝動機構には、上下動機構4及び左右一対の苗植付体5をその昇降動最上位の位置で、又はその近傍位置で設定時間停止させる間欠駆動機構と、上下動機構4及び苗植付体5の昇降動を停止させるクラッチ機構とを備えている。間欠駆動機構によって停止する時間は、該間欠駆動機構が備える変速機構によって調節され、この調節によって苗植付体5による苗植付株間が変更調節されるようになっている。   The transmission mechanism in the planting transmission case 22 includes an intermittent drive mechanism that stops the vertical movement mechanism 4 and the pair of left and right seedling planting bodies 5 at the highest position of the vertical movement or in the vicinity thereof for a set time. And a vertical movement mechanism 4 and a clutch mechanism for stopping the vertical movement of the seedling planting body 5. The time for stopping by the intermittent drive mechanism is adjusted by a speed change mechanism provided in the intermittent drive mechanism, and the adjustment between the seedling planting stocks by the seedling planting body 5 is adjusted by this adjustment.

また、苗植付体5を備える苗植付装置23に苗を供給する苗供給装置24は、苗を上方から受け入れて内側に苗を収容する複数(計32個)の苗収容体となる苗供給カップ25と、該苗供給カップ25を苗植付体5の上方を通過するように周回移動させる移動機構26と、苗植付体5の上方位置で苗供給カップ25の底部を開放して内側に収容した苗を落下させて苗植付体5に苗を供給する苗落下供給機構27とを備えている。   Moreover, the seedling supply device 24 that supplies seedlings to the seedling planting device 23 including the seedling planting body 5 receives seedlings from above and accommodates seedlings inside thereof (32 seedlings in total). The bottom of the seedling supply cup 25 is opened at the upper position of the supply cup 25, the moving mechanism 26 that moves the seedling supply cup 25 so as to pass over the seedling planting body 5, and the position above the seedling planting body 5. A seedling drop supply mechanism 27 that drops seedlings accommodated inside and supplies seedlings to the seedling planting body 5 is provided.

前記苗供給カップ25は、上下に開口する筒状体と該筒状体の下側の開口部を開閉する底蓋25aとを有し、互いにループ状に連結されている。前記移動機構26は、機体平面視で左右に長い長円形状のループ状の軌跡で周回動させる構成となっている。前記苗落下供給機構27は、苗供給カップ25の底蓋25aを苗植付体5の上方位置で開放する構成である。なお、この苗供給装置24は、二つの苗植付体5に対して苗供給カップ25が一回りで周回移動して苗を供給する構成としている。   The seedling supply cup 25 has a cylindrical body that opens up and down and a bottom lid 25a that opens and closes an opening on the lower side of the cylindrical body, and is connected to each other in a loop shape. The moving mechanism 26 is configured to rotate around an oval loop trajectory that is long to the left and right as viewed from above. The seedling drop supply mechanism 27 is configured to open the bottom lid 25 a of the seedling supply cup 25 at a position above the seedling planting body 5. The seedling supply device 24 is configured to supply the seedlings by moving the seedling supply cup 25 around the two seedling planting bodies 5 in one round.

前記苗供給カップ25の外周に円筒外周部を形成し、該円筒外周部に外側から回動自在に係合する係合部(丸孔)を有して二つの苗供給カップ25を連結する連結体28を複数設け、該連結体28の係合部を苗供給カップ25の円筒外周部に回動自在に係合し該円筒外周部を回動軸として隣の苗供給カップ25が回動自在に連結する状態として複数の苗供給カップ25を互いに連結した構成としている。即ち、苗供給カップ25と連結体28とで無端チェーンのように連結した構成である。これにより、苗供給カップ25は、直線的に移動する部分でも円弧状に移動する部分でも隣接する苗供給カップ25との間隔が変わらないので、苗供給カップ25から苗植付体5に苗を供給する個所で苗供給カップ25が苗植付体5に対して位置ズレが生じにくくなり苗供給が適正に行われて適確な苗の移植ができる。   A cylindrical outer peripheral portion is formed on the outer periphery of the seedling supply cup 25, and an engagement portion (round hole) that engages with the cylindrical outer periphery in a freely rotatable manner is provided to connect the two seedling supply cups 25. A plurality of bodies 28 are provided, the engaging part of the connecting body 28 is rotatably engaged with the outer peripheral part of the cylinder of the seedling supply cup 25, and the adjacent seedling supply cup 25 is rotatable about the outer peripheral part of the cylinder as a rotation axis. A plurality of seedling supply cups 25 are connected to each other. In other words, the seedling supply cup 25 and the connecting body 28 are connected like an endless chain. Thereby, since the space | interval with the seedling supply cup 25 which adjoined the seedling supply cup 25 does not change in the part which moves linearly, or the part which moves circularly, a seedling is transferred from the seedling supply cup 25 to the seedling transplant body 5. The seedling supply cup 25 is less likely to be displaced with respect to the seedling planting body 5 at the location where the seedling is supplied, so that the seedling can be properly supplied and transplanted accurately.

次に移動機構26の説明をする。移動機構26は無端チェーンのように互いに連結する苗供給カップ25を左右に設けた巻掛用のスプロケット29の外周の円弧状切欠部に係合させて巻き掛け、この左右の巻掛スプロケット29を植付伝動ケース22内から取り出した動力で駆動回転することにより、苗供給カップ25を機体平面視で左回りに周回動させる構成としている。   Next, the moving mechanism 26 will be described. The moving mechanism 26 wraps the seedling supply cups 25, which are connected to each other like an endless chain, by engaging them with arcuate cutouts on the outer periphery of the winding sprocket 29 provided on the left and right sides. By driving and rotating with the power extracted from the planting transmission case 22, the seedling supply cup 25 is configured to rotate counterclockwise in plan view of the machine body.

巻掛スプロケット29を駆動回転可能に取付ける各々の回動軸30を植付伝動ケース22から左右に延びる支持フレーム31に回動可能に取付け、植付伝動ケース22上部から上方に突出させた出力軸32から図示しない各々の駆動スプロケット、チェン及び従動スプロケットを介して該従動スプロケットと一体回転する前記回動軸30に伝動する構成としている。   Each rotary shaft 30 to which the winding sprocket 29 is rotatably attached is attached to a support frame 31 that extends from the planting transmission case 22 to the left and right, and is output upward from the planting transmission case 22. 32 is configured to transmit to the rotating shaft 30 that rotates integrally with the driven sprocket via each drive sprocket, chain, and driven sprocket (not shown).

苗供給カップ25の周回移動経路には、左右各々の半円状の円弧状部分37と、該円弧状部分37につながる前後各々の直線状部分38とを備える。そして、苗供給カップ25が後側の直線状部分38において右方へ移動して左右の苗植付体25の上方を通過するようにしており、該直線状部分38に苗を苗植付体5へ落下供給する左右の落下供給位置39,40が設定されている。苗供給カップ25が周回する左右の回動軸30は、左右の後輪7より機体内側で、且つ、後輪7の車軸10位置より後側に配置している。また、苗植付体5は、後輪7の車軸10位置より後側に配置している。   The circumferential movement path of the seedling supply cup 25 includes left and right semicircular arc-shaped portions 37 and front and rear linear portions 38 connected to the arc-shaped portion 37. The seedling supply cup 25 moves to the right in the rear straight portion 38 so as to pass above the left and right seedling transplant bodies 25, and seedlings are planted in the straight portions 38. Left and right drop supply positions 39 and 40 for supplying the drop to 5 are set. The left and right pivot shafts 30 around which the seedling supply cup 25 circulates are arranged on the inner side of the left and right rear wheels 7 and on the rear side of the axle 10 position of the rear wheels 7. Further, the seedling planting body 5 is arranged on the rear side of the axle 10 position of the rear wheel 7.

巻掛スプロケット29に設けた円弧状長孔(図示せず)による調節範囲は、巻掛スプロケット29において苗供給カップ25の配列ピッチ分(後述する第一及び第二の苗供給カップ25b,25cの配列ピッチの2分の1分)に設定されている。この円弧状長孔等により、左右の落下供給位置39,40の変更に合わせて左右各々の苗植付体5が上動したときに該苗植付体5へ落下供給する苗を収容する苗供給カップ25が当該落下供給位置39,40に到達するように上下動機構4の作動に対する苗供給カップ25の周回位置を変更する周回タイミング変更機構となる。   The adjustment range by the arc-shaped long hole (not shown) provided in the winding sprocket 29 is the same as the arrangement pitch of the seedling supply cup 25 in the winding sprocket 29 (first and second seedling supply cups 25b and 25c described later). It is set to 1/2 of the arrangement pitch. With this arc-shaped elongated hole or the like, seedlings that contain seedlings that are dropped and supplied to the seedling planting body 5 when the left and right seedling planting bodies 5 are moved up in accordance with the change of the left and right fall supply positions 39, 40. This is a turning timing changing mechanism that changes the turning position of the seedling supply cup 25 with respect to the operation of the vertical movement mechanism 4 so that the supply cup 25 reaches the drop supply positions 39 and 40.

本実施例の特徴は苗供給装置24に設けた苗置台を苗供給カップ25の有無に合わせて上下調節できる構成にしたことである。
図3には苗供給装置24の概略構成図を示す。図3(a)は苗供給装置24の概略斜視図であり、図3(b)は側面図(一部縦断面を示す)である。苗供給装置24には隣接する2つの苗供給カップ25,25を連結する連結体28をループ状の長円軌道に沿って、カップ25,25の底蓋25aを支持しながらガイドするガイドレール33aが設けられており、該ガイドレール33aは機体に支持された支持部材33bに固定されたコ字状プレート33eに支持されている。また、ループ状に連結された苗供給カップ25の軌道外側の側面に当接してループ状の軌道をスムーズに移動できるようするためのガイド33dが設けられているが、該ガイド33dは、支持部材33bに基部側を支持されたコ字状プレート33eが前記支持部材33bの先端部に固定している。
The feature of this embodiment is that the seedling stand provided in the seedling supply device 24 can be adjusted up and down in accordance with the presence or absence of the seedling supply cup 25.
In FIG. 3, the schematic block diagram of the seedling supply apparatus 24 is shown. 3 (a) is a schematic perspective view of the seedling supply device 24, and FIG. 3 (b) is a side view (partially showing a longitudinal section). In the seedling supply device 24, a guide rail 33a that guides a connecting body 28 that connects two adjacent seedling supply cups 25, 25 along a looped elliptical track while supporting the bottom lid 25a of the cups 25, 25. The guide rail 33a is supported by a U-shaped plate 33e fixed to a support member 33b supported by the machine body. In addition, a guide 33d is provided to contact the outer side surface of the seedling supply cup 25 connected in a loop shape so that the loop-shaped track can be smoothly moved. The guide 33d is a support member. A U-shaped plate 33e supported on the base side by 33b is fixed to the tip of the support member 33b.

そして前記4本のL字状のプレート33cの頂部には苗置台34を設置可能になっており、苗置台34は平面視で長円状の側壁部34aと該側壁部34aの上方を塞ぐ長円状の平面部34bと把手34cを備え、該平面部34bには苗トレイを載置可能な広さが確保されており、また側壁部34aの前記L字状のプレート33cに当接する位置には鉛直方向に長い長穴34a1が設けられている。前記側壁部34aの長穴34a1を介してL字状のプレート33cをボルトナットで適宜高さに支持固定できるので、平面部34bに載置する苗トレイの載置高さを自在に調節可能となる。従って苗供給カップ25の高さ又は該苗供給カップ25内に供給される苗の丈に応じて苗置台34の高さを調節でき、苗の苗供給装置24への供給が能率的に行える。   A seedling table 34 can be installed on the top of the four L-shaped plates 33c, and the seedling table 34 has a long oval side wall 34a and a length that covers the upper side of the side wall 34a. A circular plane part 34b and a handle 34c are provided, and the plane part 34b has a width that allows a seedling tray to be placed thereon, and is in a position that contacts the L-shaped plate 33c of the side wall part 34a. Is provided with a long hole 34a1 which is long in the vertical direction. Since the L-shaped plate 33c can be supported and fixed at an appropriate height by a bolt and nut through the elongated hole 34a1 of the side wall 34a, the placement height of the seedling tray placed on the flat surface portion 34b can be freely adjusted. Become. Therefore, the height of the seedling table 34 can be adjusted according to the height of the seedling supply cup 25 or the height of the seedling supplied into the seedling supply cup 25, and the supply of the seedling to the seedling supply device 24 can be efficiently performed.

また、図6(a)は複数の苗供給カップ25、25’を載置した苗供給装置24部分と操縦ハンドル2部分を示す苗移植機の背面図であり、図6(b)は苗供給カップ25の側面図であるが、苗の丈が通常より高い場合には苗供給カップ25に一以上の延長スリーブ25’を上方から装着し、同時に一番上の延長スリーブ25’の上方から苗を供給できるように苗載台を高くする。   FIG. 6A is a rear view of the seedling transplanter showing a seedling supply device 24 portion and a steering handle 2 portion on which a plurality of seedling supply cups 25 and 25 ′ are placed, and FIG. In the side view of the cup 25, when the seedling height is higher than usual, one or more extension sleeves 25 ′ are attached to the seedling supply cup 25 from above, and at the same time, the seedlings are seeded from above the uppermost extension sleeve 25 ′. Raise the seedling stand so that it can be supplied.

このとき、図7(b)の苗供給カップ25の側面図に示すように、延長スリーブ25’の外周に延長スリーブ25’と一体のガイド溝25’aが取り付けられ、ガイド溝25’aが上下動自在に取り付けられた延長スリーブ25’と共に上下動するように設けてもよい。この場合は、苗置台34の高さを上下方向で変更すると延長スリーブ25’の高さも同時に変更できる。なお、図7(a)は複数の苗供給カップ25、25’を載置した苗供給装置24部分と操縦ハンドル2部分を示す苗移植機の背面図である。   At this time, as shown in a side view of the seedling supply cup 25 in FIG. 7B, a guide groove 25′a integrated with the extension sleeve 25 ′ is attached to the outer periphery of the extension sleeve 25 ′, and the guide groove 25′a You may provide so that it may move up and down with extension sleeve 25 'attached up and down freely. In this case, if the height of the seedling table 34 is changed in the vertical direction, the height of the extension sleeve 25 'can be changed at the same time. FIG. 7A is a rear view of the seedling transplanter showing a seedling supply device 24 portion on which a plurality of seedling supply cups 25 and 25 ′ are placed and a steering handle 2 portion.

また図4に他の実施例の苗供給装置24の側面図(一部縦断面)を示すように、複数の苗供給カップ25をループ状の長円軌道を周回させるためのスプロケット35の外周にストレート部とテーパ部を設け、苗供給カップ25の外周に設けたつば部25”をテーパ部で押さえて苗供給カップ25の浮き上がりを防止する構成とすると苗供給カップ25はループ状の長円軌道を安定して周回できる。   In addition, as shown in FIG. 4 which is a side view (partly longitudinal cross section) of the seedling supply device 24 of another embodiment, a plurality of seedling supply cups 25 are arranged on the outer periphery of a sprocket 35 for rotating around a loop-shaped oval orbit. When the straight portion and the tapered portion are provided, and the collar portion 25 ″ provided on the outer periphery of the seedling supply cup 25 is pressed by the tapered portion to prevent the seedling supply cup 25 from being lifted, the seedling supply cup 25 has a looped elliptical orbit. Can be circulated stably.

図5には別実施例の苗供給装置24の概略図を示す。図5(a)には苗供給装置24の概略側面図(一部縦断面を示す)を示し、図5(b)はスプロケット35の斜視図を示す。この実施例では、スプロケット35の外周に設けられるスプロケット歯35aと平行した位置に苗供給カップ25の外周に取り付けた連結体28がつば部として機能し、苗供給カップ25の押さえとなる円板部35bをスプロケット歯35aと一体的に設けた構成である。   FIG. 5 shows a schematic view of a seedling supply device 24 of another embodiment. FIG. 5A shows a schematic side view (partially showing a longitudinal section) of the seedling supply device 24, and FIG. 5B shows a perspective view of the sprocket 35. In this embodiment, the connecting body 28 attached to the outer periphery of the seedling supply cup 25 functions as a collar at a position parallel to the sprocket teeth 35 a provided on the outer periphery of the sprocket 35 and serves as a presser for the seedling supply cup 25. 35b is provided integrally with the sprocket teeth 35a.

図8に示すように、複数(計32個)の苗供給カップ25は、専ら一方(左側)の落下供給位置39で落下供給する苗を収容する第一の苗供給カップ25bと、専ら他方(右側)の落下供給位置40で落下供給する苗を収容する第二の苗供給カップ25cとを、各別に各々計16個備え、第一の苗供給カップ25bと第二の苗供給カップ25cとが交互に連結された構成となっている。そして、図8(a)に示すように一方の落下供給位置39に第一の苗供給カップ25bが位置するとき、他方の落下供給位置40に第二の苗供給カップ25cが位置するように設定している。   As shown in FIG. 8, a plurality (32 in total) of seedling supply cups 25 are composed of a first seedling supply cup 25b that accommodates seedlings that are supplied by dropping at one (left side) drop supply position 39, and the other ( On the right side, a total of 16 second seedling supply cups 25c that contain seedlings to be supplied at a fall supply position 40 are provided, and a first seedling supply cup 25b and a second seedling supply cup 25c are provided. It becomes the structure connected alternately. And when the 1st seedling supply cup 25b is located in one fall supply position 39 as shown in Drawing 8 (a), it sets so that the 2nd seedling supply cup 25c may be located in the other fall supply position 40 doing.

従って、前記第一及び第二の苗供給カップ25b,25cは、移動機構26によりループ状の一経路上で互いに同じ移動量で周回移動するから、移動機構26による周回移動により各々の落下供給位置39,40に同じタイミングで且つ同じ回数到達する構成となっている。   Accordingly, the first and second seedling supply cups 25b and 25c are moved by the moving mechanism 26 around the looped path with the same amount of movement. 39 and 40 are configured to reach the same number of times at the same timing.

そして、左側の苗植付体5へ落下供給する苗を収容する第一の苗供給カップ25bの底蓋25aには、周回方向に対して右側端(周回の外側端)に突起41を設けている。一方、右側の苗植付体5へ落下供給する苗を収容する第二の苗供給カップ25cの底蓋25aには、周回方向に対して左側端(周回の内側端)に突起41を設けている。   The bottom cover 25a of the first seedling supply cup 25b that accommodates the seedling that is supplied to the left seedling planting body 5 is provided with a protrusion 41 on the right end (the outer end of the circulation) with respect to the rotation direction. Yes. On the other hand, the bottom lid 25a of the second seedling supply cup 25c that accommodates the seedling that is supplied to the right seedling planting body 5 is provided with a protrusion 41 at the left end (inner end of the circulation) with respect to the circulation direction. Yes.

苗落下供給機構27は、苗供給カップ25の周回軌跡下方で底蓋25aが下方に回動しないように底蓋25aに下方から当接して支持する支持体42を設け、この支持体42を苗植付体5の上方位置には設けないようにすることで、苗植付体5の上方位置(前記落下供給位置39,40)を苗供給カップ25が通過するとき、底蓋25aが支持体42による支持状態が解かれてその自重及び苗の重力により下方回動し、苗を下方に落下するべく苗供給カップ25の下部を開放する構成としている。なお、底蓋25aの回動支点は苗供給カップ25の周回下手側部分に設けられ、底蓋25aは、苗供給カップ25の周回上手側から開く構成となっている。   The seedling drop supply mechanism 27 is provided with a support 42 that supports the bottom cover 25a from below so that the bottom cover 25a does not rotate downward below the orbit of the seedling supply cup 25, and this support 42 is supported by the seedling. When the seedling supply cup 25 passes through the upper position of the seedling planting body 5 (the drop supply positions 39 and 40), the bottom cover 25a is supported by the support body. The support state by 42 is released, and the lower part of the seedling supply cup 25 is opened so as to rotate downward due to its own weight and the gravity of the seedling and to drop the seedling downward. In addition, the rotation fulcrum of the bottom cover 25a is provided in the lower rotation side part of the seedling supply cup 25, and the bottom cover 25a is configured to open from the upper rotation side of the seedling supply cup 25.

前記支持体42は、機体に固定された固定支持体42a,42b,42c,42dと、機体に対して位置変更できる移動支持体42e,42fとからなる。前記固定支持体42a,42b,42c,42dは、苗供給カップ25の周回軌跡における左右の円弧状部分37並びに前側の直線状部分38の全域にわたる主固定支持体42aと、後側の直線状部分38の一部に設けた第一、第二並びに第三の副固定支持体42b,42c,42dとを備える。これらの主固定支持体42a及び第一、第二並びに第三の副固定支持体42b,42c,42dは、棒材で構成されている。   The support body 42 includes fixed support bodies 42a, 42b, 42c, and 42d fixed to the airframe, and movable support bodies 42e and 42f that can change positions relative to the airframe. The fixed support bodies 42a, 42b, 42c, and 42d are a main fixed support body 42a that covers the entire area of the left and right arc-shaped portions 37 and the front linear portion 38 in the circulation locus of the seedling supply cup 25, and a rear linear portion. 38, first, second and third sub-fixing supports 42b, 42c and 42d are provided. The main fixed support 42a and the first, second, and third sub fixed supports 42b, 42c, and 42d are made of bar material.

前記主固定支持体42aは、底蓋25aの中央に当接するように苗供給カップ25の周回軌跡に沿って延設され、第一並びに第二の苗供給カップ25b,25cの底蓋25aを開かないように支持する。第一の副固定支持体42bは、第一の苗供給カップ25bの底蓋25aにおいて周回の外側端に設けた突起41に当接するように苗供給カップ25の周回軌跡に沿って直線状に設けられ、第一の苗供給カップ25bの底蓋25aを開かないように支持する。この第一の副固定支持体42bは、苗供給カップ25の周回において後側の直線状部分38の途中から第一の苗供給カップ25bの底蓋25aのみを閉じて支持して、この底蓋25aの支持を後続の主固定支持体42aに引き継ぐように、後側の直線状部分38の右寄りの位置で且つ主固定支持体42aの底蓋25a周回上手側に設けられている。   The main fixed support 42a is extended along the circular trajectory of the seedling supply cup 25 so as to contact the center of the bottom cover 25a, and opens the bottom lid 25a of the first and second seedling supply cups 25b and 25c. Support not to be. The first sub-fixing support 42b is provided in a straight line along the circulation locus of the seedling supply cup 25 so as to contact the protrusion 41 provided at the outer end of the rotation in the bottom lid 25a of the first seedling supply cup 25b. The bottom cover 25a of the first seedling supply cup 25b is supported so as not to open. The first sub-fixing support body 42b supports the bottom cover 25a of the first seedling supply cup 25b by closing the bottom cover 25a from the middle of the linear portion 38 on the back of the seedling supply cup 25. In order to take over the support of 25a to the succeeding main fixing support 42a, it is provided on the right side of the linear portion 38 on the rear side and on the upper side of the bottom lid 25a of the main fixing support 42a.

第二の副固定支持体42cは、第二の苗供給カップ25cの底蓋25aの周回の内側端に設けた突起41に当接するように苗供給カップ25の周回軌跡に沿って直線状に設けられ、第二の苗供給カップ25cの底蓋25aを開かないように支持する。この第二の副固定支持体42cは、苗供給カップ25の周回において主固定支持体42aの底蓋25aの支持に引き継いで第二の苗供給カップ25cの底蓋25aのみを支持するように、後側の直線状部分38の左寄りの位置で且つ主固定支持体42aの底蓋25a周回下手側に設けられている。   The second sub-fixing support 42c is provided in a straight line along the circumferential locus of the seedling supply cup 25 so as to contact the protrusion 41 provided on the inner end of the circumference of the bottom lid 25a of the second seedling supply cup 25c. The bottom cover 25a of the second seedling supply cup 25c is supported so as not to open. The second sub-fixing support 42c takes over the support of the bottom cover 25a of the main fixed support 42a in the circumference of the seedling supply cup 25 and supports only the bottom cover 25a of the second seedling supply cup 25c. It is provided on the lower left side of the bottom lid 25a of the main fixed support 42a at a position on the left side of the linear portion 38 on the rear side.

第三の副固定支持体42dは、底蓋25aの中央に当接する構成であり、苗供給カップ25の周回において後側の直線状部分38の途中から第一の苗供給カップ25bの底蓋25aを閉じるべく周回上手側ほど下位となる傾斜部分を備え、該傾斜部分で開いた第一の苗供給カップ25bの底蓋25aを上側へ案内しながら閉じる構成となっており、後側の直線状部分38の略中央の位置で且つ第一の副固定支持体42bの底蓋25a周回における始端部(左端部)と並行して設けられている。   The third sub-fixing support 42d is configured to contact the center of the bottom cover 25a, and the bottom cover 25a of the first seedling supply cup 25b from the middle of the linear portion 38 on the rear side in the circumference of the seedling supply cup 25. Is provided with a lower inclined portion toward the upper side of the circuit, and is closed while guiding the bottom lid 25a of the first seedling supply cup 25b opened at the inclined portion to the upper side. It is provided at a substantially central position of the portion 38 and in parallel with the start end portion (left end portion) of the first sub fixed support 42b around the bottom lid 25a.

なお、第三の副固定支持体42dの底蓋25a周回における終端(右端)は、第二の副固定支持体42cの底蓋25a周回における終端(右端)より底蓋25a周回における上手側(左側)に位置している。なお、主固定支持体42aの底蓋25a周回における始端部は、第二の苗供給カップ25cの底蓋25aを閉じるべく周回上手側ほど下位となる傾斜部分を備え、該傾斜部分で開いた第二の苗供給カップ25cの底蓋25aを上側へ案内しながら閉じる構成となっている。   The end (right end) of the third sub-fixing support 42d around the bottom lid 25a is located on the upper side (left side) of the second sub-fixing support 42c around the bottom lid 25a from the end (right end) of the bottom lid 25a. ). The starting end of the main fixed support 42a around the bottom lid 25a is provided with an inclined portion that is lower on the upper side of the circumference so as to close the bottom lid 25a of the second seedling supply cup 25c, and is opened at the inclined portion. The bottom lid 25a of the second seedling supply cup 25c is closed while being guided upward.

また、第一の副固定支持体42bは、右端を支持フレーム31から後側の直線状部分38の右端部に延びる第一支持部材43に固着して設けられている。さらに、第二の副固定支持体42cは、左端を支持フレーム31から後側の直線状部分38の左端部に延びる第二支持部材44に固着し、右端部を植付伝動ケース22から後方に延びる第三支持部材45に固着して設けられている。また、第三の副固定支持体42dは、前記第三支持部材45に固着して設けられている。なお、主固定支持体42aは、前記第一支持部材43及び第二支持部材44の上面に固着して設けられている。   Further, the first sub-fixing support 42 b is provided by fixing the right end to the first support member 43 extending from the support frame 31 to the right end of the linear portion 38 on the rear side. Further, the second sub-fixing support 42c is fixed to the second support member 44 extending from the support frame 31 to the left end of the linear portion 38 on the rear side, and the right end is rearward from the planting transmission case 22. The third support member 45 extends and is fixedly provided. The third sub-fixing support 42d is fixedly provided on the third support member 45. The main fixed support 42 a is fixedly provided on the upper surfaces of the first support member 43 and the second support member 44.

前記移動支持体42e,42fは、それぞれ後側の直線状部分38の一部に設けられている。なお、これらの第一移動支持体42e及び第二移動支持体42fは、板材で構成される。前記第一移動支持体42eは、第一の苗供給カップ25bの底蓋25aにおいて周回の外側端に設けた突起41に当接するように苗供給カップ25の周回軌跡に沿って直線状に設けられ、第一の苗供給カップ25bの底蓋25aを開かないように支持する構成であり、苗供給カップ25の周回において主固定支持体42aの底蓋25aの支持に引き継いで第一の苗供給カップ25bの底蓋25aのみを支持するように、後側の直線状部分38の左寄りの位置で且つ主固定支持体42aの底蓋25a周回下手側に設けられている。   The movable supports 42e and 42f are respectively provided on a part of the linear portion 38 on the rear side. The first moving support 42e and the second moving support 42f are made of a plate material. The first moving support 42e is provided in a straight line along the orbit of the seedling supply cup 25 so as to contact the protrusion 41 provided on the outer end of the circumference of the bottom lid 25a of the first seedling supply cup 25b. The first seedling supply cup 25b is configured to support the bottom cover 25a of the first seedling supply cup 25b so as not to open, and the first seedling supply cup is taken over by supporting the bottom cover 25a of the main fixed support 42a around the seedling supply cup 25. In order to support only the bottom cover 25a of 25b, it is provided on the left side of the linear portion 38 on the rear side and on the lower side of the bottom cover 25a of the main fixed support 42a.

この第一移動支持体42eは、第二支持部材44に設けた左右方向に長い長孔46を貫通する取付ボルト47により前記第二支持部材44に固着して支持され、前記長孔46により左右方向の取付位置を変更できる構成となっている。なお、前記取付ボルト47は、苗供給カップ25の周回域より外側(後側)に位置し、苗供給カップ25が邪魔にならずに後側から容易に締付又は弛緩させることができる。   The first moving support body 42e is fixedly supported to the second support member 44 by a mounting bolt 47 penetrating a long hole 46 provided in the second support member 44 in the left-right direction. It is configured to change the mounting position in the direction. The mounting bolt 47 is located on the outer side (rear side) of the surrounding area of the seedling supply cup 25, and can be easily tightened or loosened from the rear side without the seedling supply cup 25 getting in the way.

前記第二移動支持体42fは、第二の苗供給カップ25cの底蓋25aの周回の内側端に設けた突起41に当接するように苗供給カップ25の周回軌跡に沿う直線状部分を備え、第二の苗供給カップ25cの底蓋25aを開かないように支持する構成であり、苗供給カップ25の周回において第二の副固定支持体42cの底蓋25aの支持に引き継いで第二の苗供給カップ25cの底蓋25aを支持するように、後側の直線状部分38の右寄りの位置で且つ主固定支持体42aの底蓋25a周回上手側の端部(周回軌跡における右側の円弧状部分37の始端部)との間隔を空けて設けられている。   The second moving support body 42f includes a linear portion along the circulation locus of the seedling supply cup 25 so as to abut on the protrusion 41 provided on the inner end of the rotation of the bottom lid 25a of the second seedling supply cup 25c, The second seedling supply cup 25c is configured to support the bottom cover 25a so as not to open. In the circumference of the seedling supply cup 25, the second seedling supply cup 25c takes over the support of the bottom cover 25a of the second auxiliary fixed support 42c. At the position on the right side of the linear portion 38 on the rear side so as to support the bottom lid 25a of the supply cup 25c and the end of the main lid 42a on the upper side of the bottom lid 25a (the arcuate portion on the right side in the orbit) 37 at the start end).

この第二移動支持体42fは、該第二移動支持体42fが備える左右方向に長い長孔48を貫通する取付ボルト49により前記第三支持部材45に固着して支持され、前記長孔48により左右方向の取付位置を変更できる構成となっている。なお、第二移動支持体42fは、長孔48を設けた位置調整用部分と底蓋25aを支持する底蓋25a支持部分とで2又に分かれた平面視U字型の形状になっており、この位置調整用部分と底蓋25a支持部分との間に第二の副固定支持体42cを配置して、該第二の副固定支持体42cに引き継いで確実に底蓋25aを支持できる構成としている。また、第二移動支持体42fの取付位置を長孔48により最も底蓋25a周回上手側の位置(左端位置)にしたとき、前記底蓋25a支持部分が第二の副固定支持体42cと第三の副固定支持体42dとの間に位置する構成となっており、これらの第二移動支持体42f及び第二並びに第三の副固定支持体42c,42dをコンパクトに配置している。   The second moving support 42f is fixedly supported on the third support member 45 by a mounting bolt 49 penetrating through a long hole 48 that is long in the left-right direction of the second moving support 42f. The configuration is such that the mounting position in the left-right direction can be changed. The second moving support 42f has a U-shaped shape in plan view, which is divided into two parts: a position adjusting portion provided with a long hole 48 and a bottom lid 25a support portion supporting the bottom lid 25a. The second sub-fixing support 42c is disposed between the position adjusting portion and the bottom lid 25a support portion, and the bottom lid 25a can be reliably supported by taking over the second sub-fixing support 42c. It is said. Further, when the mounting position of the second moving support 42f is set to the position (left end position) closest to the upper side of the bottom lid 25a by the long hole 48, the support portion of the bottom lid 25a is connected to the second sub-fixing support 42c and the second The second sub-supporting support 42d and the second and third sub-fixing supports 42c and 42d are compactly arranged.

なお、前記取付ボルト49は、苗供給カップ25の周回域の内側(前側)に位置し、苗供給カップ25が邪魔にならずに上方から容易に締付又は弛緩させることができる。また、苗供給カップ25の周回域の内側に予備の苗を置くための苗台を構成した場合は、該苗台における前記取付ボルト49の上方位置に孔を開け、該孔から取付ボルト49を容易に締付又は弛緩させる構成とすることができる。また、前記孔は、苗台に溜まった水を排水するための水抜き孔と兼用することができる。   The mounting bolt 49 is located on the inner side (front side) of the surrounding area of the seedling supply cup 25, and can be easily tightened or relaxed from above without the seedling supply cup 25 getting in the way. In addition, when a seedling base for placing a spare seedling inside the circumference of the seedling supply cup 25 is configured, a hole is opened at the upper position of the mounting bolt 49 in the seedling base, and the mounting bolt 49 is inserted from the hole. It can be configured to be easily tightened or relaxed. Moreover, the said hole can be combined with the drain hole for draining the water collected on the seedling stand.

なお、第一移動支持体42e及び第二移動支持体42fの位置を変更するための長孔46,48及び取付ボルト47,49は、各々左右に2個づつ設けられ、第一移動支持体42e及び第二移動支持体42fを左右真直方向に移動できる構成としている。また、第一移動支持体42e及び第二移動支持体42fの位置変更量は、前記長孔46,48により苗供給カップ25における配列ピッチ分に規制されており、この規制手段により後述する植付位置の変更で落下供給位置39,40を誤った位置に調節しないように構成している。   Two elongated holes 46 and 48 and two mounting bolts 47 and 49 for changing the positions of the first moving support 42e and the second moving support 42f are provided on the left and right sides, respectively, and the first moving support 42e. In addition, the second moving support 42f is configured to be movable in the left-right straight direction. Further, the amount of position change of the first moving support 42e and the second moving support 42f is regulated by the long holes 46 and 48 to the arrangement pitch in the seedling supply cup 25, and planting which will be described later by this regulating means. The drop supply positions 39 and 40 are not adjusted to an incorrect position by changing the position.

従って、第一の苗供給カップ25bが第一移動支持体42eの底蓋25a周回下手側の端部(右端部)で該第一の苗供給カップ25bの底蓋25aが支持されなくなる位置まで移動すると、第一の苗供給カップ25bの底蓋25aが開放される。すなわち、第一移動支持体42eの底蓋25a周回下手側の端部(右端部)が、第一(左側)の落下供給位置39となる。また、第二の苗供給カップ25cが第二移動支持体42fの底蓋25a周回下手側の端部(右端部)で該第二の苗供給カップ25cの底蓋25aが支持されなくなる位置まで移動すると、第二の苗供給カップ25cの底蓋25aが開放される。すなわち、第二移動支持体42fの底蓋25a周回下手側の端部(右端部)が、第二(右側)の落下供給位置40となる。なお、第二の副固定支持体42cにより、周回上手側の第一の落下供給位置39で第二の苗供給カップ25cの底蓋25aが開放しないようにする開放規制手段が構成されている。   Accordingly, the first seedling supply cup 25b moves to the position where the bottom cover 25a of the first seedling supply cup 25b is not supported at the end (right end) on the lower side of the bottom cover 25a of the first moving support 42e. Then, the bottom lid 25a of the first seedling supply cup 25b is opened. That is, the end (right end) on the lower side of the bottom lid 25a of the first moving support 42e is the first (left) drop supply position 39. Further, the second seedling supply cup 25c moves to the position where the bottom cover 25a of the second seedling supply cup 25c is not supported at the end (right end) on the lower side of the bottom cover 25a of the second moving support 42f. Then, the bottom lid 25a of the second seedling supply cup 25c is opened. That is, the end (right end) of the second moving support 42f on the lower side of the bottom lid 25a is the second (right) drop supply position 40. The second sub-fixing support 42c constitutes an opening restricting means for preventing the bottom cover 25a of the second seedling supply cup 25c from being opened at the first drop supply position 39 on the upper side of the circulation.

従って、第一移動支持体42eを長孔46により最も周回下手側(右側)に位置させ、第二移動支持体42fを長孔48により最も周回上手側(左側)に位置させると、第一の落下供給位置39と第二の落下供給位置40との互いの間隔が最も狭まり、植付条間が最も狭い状態となる。このとき、左右の落下供給位置39,40の間隔は、苗供給カップ25における配列ピッチの3倍すなわち第一及び第二の苗供給カップ25b,25cにおける配列ピッチの1.5倍となる。逆に、第一移動支持体42eを長孔46により最も周回上手側(左側)に位置させ、第二移動支持体42fを長孔48により最も周回下手側(右側)に位置させると、第一の落下供給位置39と第二の落下供給位置40との互いの間隔が最も広がり、植付条間が最も広い状態となる。   Accordingly, when the first moving support 42e is positioned on the most peripheral lower side (right side) by the long hole 46, and the second moving support 42f is positioned on the most peripheral upper side (left side) by the long hole 48, the first The distance between the drop supply position 39 and the second drop supply position 40 is the smallest, and the space between the planting strips is the narrowest. At this time, the interval between the left and right drop supply positions 39, 40 is three times the arrangement pitch in the seedling supply cup 25, that is, 1.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. On the other hand, when the first moving support 42e is positioned on the most circumferential upper side (left side) by the long hole 46, and the second moving support 42f is positioned on the most lower rotating side (right side) by the long hole 48, the first The distance between the second drop supply position 39 and the second drop supply position 40 is the largest, and the space between the planting strips is the widest.

このとき、左右の落下供給位置39,40の間隔は、苗供給カップ25における配列ピッチの5倍すなわち第一及び第二の苗供給カップ25b,25cにおける配列ピッチの2.5倍となる。従って、各々の落下供給位置39,40は苗供給カップ25における配列ピッチ分だけ位置変更できる構成となっており、左右の落下供給位置39,40の互いの間隔が、第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍(1倍)(苗供給カップ25における配列ピッチの偶数倍(2倍))の距離分変化するようになっている。   At this time, the distance between the left and right drop supply positions 39, 40 is 5 times the arrangement pitch in the seedling supply cup 25, that is, 2.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. Accordingly, each drop supply position 39, 40 can be changed in position by the arrangement pitch in the seedling supply cup 25, and the distance between the left and right drop supply positions 39, 40 is the first and second seedlings. It changes by the distance of an integral multiple (1 times) of the arrangement pitch in the supply cups 25b, 25c (an even multiple (2 times) of the arrangement pitch in the seedling supply cup 25).

図9に示すように、苗植付装置23は、先端が下方に向かうくちばし状の苗植付体5と、該苗植付体5の下端部が圃場面より上方となる位置と圃場面より下方となる位置とに昇降するように苗植付体5を上下動させる上下動機構4と、くちばし状の苗植付体5の下端部が閉じて上方から苗を受け入れて内側に苗を収容可能にする閉状態と苗植付体5の下端部が左右に開いて内側に収容した苗を下方に放出可能にする開状態とに苗植付体5を開閉する開閉機構50を備えている。   As shown in FIG. 9, the seedling planting device 23 includes a beak-shaped seedling planting body 5 whose tip is directed downward, and a position where the lower end of the seedling planting body 5 is above the field scene and the field scene. The vertical movement mechanism 4 that moves the seedling planting body 5 up and down so as to move up and down to the lower position, and the lower end portion of the beak-shaped seedling planting body 5 is closed to receive seedlings from above and accommodate seedlings inside There is provided an opening / closing mechanism 50 for opening and closing the seedling planting body 5 in a closed state that allows the seedling planting body 5 to open in a left and right direction and an open state in which the seedling accommodated inside can be released downward. .

この苗移植機1は、苗植付体5を左右に設定間隔で複数体並べて配備した複数条植の構成としている。本例では、苗植付体5を左右に設定間隔で二体並べて配備した二条植えの構成としている。   This seedling transplanter 1 has a configuration of a plurality of strips in which a plurality of seedling planting bodies 5 are arranged side by side at set intervals. In this example, it is set as the structure of the two-row planting which arrange | positioned the seedling planting body 5 side by side with the set space | interval at a set space | interval.

二体の苗植付体5は、植付伝動ケース22の左右両側部に設けた上下動機構4に一体づつ装着している。先端が下方に向いたくちばし状の苗植付体5を左側苗植付体5Lと右側苗植付体5Rとで構成して左右に分割し、後述する開閉機構50により左側苗植付体5Lと右側苗植付体5Rとが左右方向に回動して下端部を開く構成となっている。なお、左右の苗植付体5は、上下動機構4及び開閉機構50により、同期して上下動及び開閉し、圃場に並木状に苗を2条植えする構成となっている。   The two seedling planting bodies 5 are attached to the vertical movement mechanisms 4 provided on the left and right side portions of the planting transmission case 22 as a unit. A beak-shaped seedling planting body 5 having a tip facing downward is composed of a left seedling planting body 5L and a right seedling planting body 5R, and is divided into left and right parts. And the right seedling planting body 5R rotate in the left-right direction to open the lower end. In addition, the right and left seedling planting body 5 is configured to vertically move and open and close synchronously by the vertical movement mechanism 4 and the opening and closing mechanism 50, and to plant two seedlings in a row on the farm field.

苗ガイド51は、苗植付体5の上方に設けられ、苗供給装置24から供給された苗を苗植付体5内に案内する筒状体であり、苗供給装置24から落下供給される苗を適確に苗植付体5内に供給することができる。   The seedling guide 51 is a cylindrical body that is provided above the seedling planting body 5 and guides the seedlings supplied from the seedling feeding device 24 into the seedling planting body 5, and is dropped and supplied from the seedling feeding device 24. The seedling can be accurately supplied into the seedling planting body 5.

苗植付体5の上下動機構4は、植付伝動ケース22の左右両側部に設けている。具体的には、植付伝動ケース22の左右側方に突出させた軸58,63に前部を上下回動自在に装着し後部を苗植付体5に連結した上側と下側の昇降リンク52,53と、植付伝動ケース22の側部から突出させた駆動回転する駆動軸54と、該駆動軸54に一体回転するように取付けた駆動アーム55と、該駆動アーム55の回転外周側端部と前記上側の昇降リンク52とに回動自在に連結する連動アーム56とで構成している。そして、上側と下側の昇降リンク52,53の各後端部(回動先端部)を連結部材57に回動自在に取付けて連結している。苗植付体5は、前記連結部材57に取り付けられている。   The vertical movement mechanism 4 of the seedling planting body 5 is provided on both right and left sides of the planting transmission case 22. Specifically, the upper and lower lifting links in which the front part is attached to the shafts 58 and 63 projecting to the left and right sides of the planting transmission case 22 so that the front part can be turned up and down and the rear part is connected to the seedling planting body 5. 52, 53, a drive shaft 54 that rotates from the side of the planting transmission case 22, a drive arm 55 that is attached so as to rotate integrally with the drive shaft 54, and a rotational outer peripheral side of the drive arm 55 An interlocking arm 56 is rotatably connected to the end portion and the upper lifting link 52. The rear end portions (rotating tip portions) of the upper and lower elevating links 52 and 53 are pivotally attached to and connected to the connecting member 57. The seedling planting body 5 is attached to the connecting member 57.

従って、駆動軸54の回転により駆動アーム55が駆動回転すると、昇降リンク52,53が上下動して、左右の苗植付体5が上下動する。この上下動の上昇位置では苗植付体5の下端部が圃場面より上方に位置し、下降位置では苗植付体5の下端部が圃場面より下方に位置する。   Therefore, when the drive arm 55 is driven and rotated by the rotation of the drive shaft 54, the elevating links 52 and 53 are moved up and down, and the right and left seedling planting bodies 5 are moved up and down. The lower end portion of the seedling planting body 5 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 5 is positioned below the field scene at the lowering position.

また、上側の昇降リンク52の回動支点軸58は、植付伝動ケース22から突出して回転駆動する植付出力軸59の先端部に該出力軸59の中心軸心より偏心させた位置に設けられ、該植付出力軸59の回転によって植付出力軸59の軸芯を中心として偏心量(回動支点軸58と植付出力軸59の軸芯との間隔)を半径として回転しながら移動する構成とし、上側の昇降リンク52の上下動中に回動支点軸58が前後に移動することにより、苗植付体5をその昇降動中に前後に傾け、苗植付体5を側面視ループ状の作動軌跡で上下動させる構成となっている。   Further, the rotation fulcrum shaft 58 of the upper elevating link 52 is provided at a position that is eccentric from the center axis of the output shaft 59 at the tip of the planting output shaft 59 that projects from the planting transmission case 22 and rotates. The rotation of the planting output shaft 59 moves around the axis of the planting output shaft 59 while rotating with an eccentric amount (the distance between the pivot fulcrum shaft 58 and the axis of the planting output shaft 59) as a radius. When the upper lift link 52 moves up and down, the pivot fulcrum shaft 58 moves back and forth, so that the seedling planting body 5 is tilted back and forth during the up and down movement, and the seedling planting body 5 is viewed from the side. It is configured to move up and down along a loop-like operating locus.

次に、苗植付体5の開閉機構50について説明する。右側苗植付体5Rの上部に設けた右側開閉用アーム部60の先端部に開閉用ケーブル61のインナーワイヤ61aの端部を連結し、ガイドパイプ5aに設けた左側開閉用アーム部62の先端部に開閉用ケーブル61のアウターケーブル61bの端部を連結する。   Next, the opening / closing mechanism 50 of the seedling planting body 5 will be described. The end of the inner wire 61a of the opening / closing cable 61 is connected to the tip of the right opening / closing arm 60 provided on the right seedling planting body 5R, and the tip of the left opening / closing arm 62 provided on the guide pipe 5a. The end of the outer cable 61b of the opening / closing cable 61 is connected to the portion.

そして下側の昇降リンク53の基部を枢着している回動支点軸63に基部を回動自在に取付けた作動アーム64を設け、この作動アーム64の先端部に前記開閉用ケーブル61のインナーワイヤ61aの他端を連結し、機体側に開閉用ケーブル61のアウターケーブル61bの他端が支持されている。   An operating arm 64 having a base pivotably attached to a pivot fulcrum shaft 63 pivotally attached to the base of the lower lift link 53 is provided, and the inner end of the opening / closing cable 61 is provided at the distal end of the working arm 64. The other end of the wire 61a is connected, and the other end of the outer cable 61b of the opening / closing cable 61 is supported on the machine body side.

上記構成により、駆動軸54の駆動回転により苗植付体5が上下動して下降下端位置に達すると、開閉用ケーブル61のアウターケーブル61bに対してインナーワイヤ61aが緊張して矢印イ側に引かれて右側開閉用アーム部60と左側開閉用アーム部62とが互いに近づくように右側開閉用アーム部60が回動し、右側苗植付体5Rの下部側が右方に回動する。   With the above configuration, when the seedling planting body 5 is moved up and down by the drive rotation of the drive shaft 54 and reaches the lower end position, the inner wire 61a is tensioned with respect to the outer cable 61b of the opening / closing cable 61 and is moved to the arrow i side. The right opening / closing arm 60 is rotated so that the right opening / closing arm 60 and the left opening / closing arm 62 come close to each other, and the lower side of the right seedling planting body 5R is rotated to the right.

左側苗植付体5L(5bL)に固着されたアーム94aに支持されたピン94が設けられており右側苗植付体5R(5bR)の長穴(図示せず)にピン94が挿入されることで右側苗植付体5Rとピン94は遊嵌状態で連結している。このように右側苗植付体5Rと左側苗植付体5Lはピン94によって連結しており、ピン94が右側苗植付体5Rの回動に連動して下方向に動くと、そのピン94にアーム94aを介して固着した左側苗植付体5Lの下部側が左方に回動して苗植付体5R,5Lの下端部が左右に開いて下方に開放状態となる。そして、苗植付体5が上昇して開閉用ケーブル61のインナーワイヤ61aが弛められると、左右に開いた苗植付体5の下部が閉じる。   A pin 94 supported by an arm 94a fixed to the left seedling planting body 5L (5bL) is provided, and the pin 94 is inserted into a long hole (not shown) of the right seedling planting body 5R (5bR). Thus, the right seedling planting body 5R and the pin 94 are connected in a loosely fitted state. In this way, the right seedling planting body 5R and the left seedling planting body 5L are connected by the pin 94, and when the pin 94 moves downward in conjunction with the rotation of the right seedling planting body 5R, the pin 94 The lower part of the left seedling planting body 5L fixed to the arm 94a via the arm 94a rotates to the left, and the lower ends of the seedling planting bodies 5R and 5L are opened to the left and right to be opened downward. And if the seedling planting body 5 rises and the inner wire 61a of the opening / closing cable 61 is loosened, the lower part of the seedling planting body 5 opened to the left and right is closed.

このように、苗植付体5の開閉を開閉用ケーブル61で行う構成としたので、従来のロッドあるいはリンクによる開閉機構と比較して、開閉用ケーブル61の連結の自由度が高いため、左側苗植付体5L及び右側苗植付体5Rを異なる方向(左右方向)に回動させることができると共に、作動アーム64の少量の作動量で苗植付体5の所望の開閉量を得る構成とすることができる。なお、左側苗植付体5Lと右側苗植付体5Rとは、スプリング65により苗植付体5の下部が閉じる側へ回動付勢されている。   Since the seedling planting body 5 is opened / closed by the opening / closing cable 61 as described above, the opening / closing cable 61 has a higher degree of freedom of connection than the conventional opening / closing mechanism using a rod or link. A configuration in which the seedling planting body 5L and the right seedling planting body 5R can be rotated in different directions (left and right directions) and a desired opening / closing amount of the seedling planting body 5 can be obtained with a small amount of operation of the operation arm 64. It can be. The left seedling planting body 5 </ b> L and the right seedling planting body 5 </ b> R are rotationally biased by the spring 65 toward the side where the lower part of the seedling planting body 5 is closed.

なお、図9は左側の苗植付装置23を示すものであり、右側の苗植付装置23においては、左側の苗植付装置23と左右対称であるので、左側開閉用アーム部の先端部に開閉用ケーブルのアウターケーブルの端部を連結し、右側開閉用アーム部の先端部に開閉用ケーブルのインナーワイヤの端部を連結した構成となっている。   FIG. 9 shows the left seedling planting device 23, and the right seedling planting device 23 is symmetrical with the left seedling planting device 23. The end portion of the outer cable of the opening / closing cable is connected to the end portion, and the end portion of the inner wire of the opening / closing cable is connected to the tip portion of the right opening / closing arm portion.

そして、作動アーム64が、上側の昇降リンク52の基部を枢着している回動支点軸58を回転移動させる植付出力軸59と一体回転するよう取付けられ、設定したタイミングで前側に回動する構成としている。   The operating arm 64 is attached so as to rotate integrally with the planting output shaft 59 that rotates and moves the rotation fulcrum shaft 58 pivotally attached to the base of the upper lifting link 52, and rotates forward at a set timing. It is configured to do.

上記構成により、駆動軸54の駆動回転により苗植付体5が上下動して下降下端位置に達すると、作動アーム64が前側に回動し、開閉用ケーブル61のアウターケーブル61bに対してインナーワイヤ61aが矢印イ側に引かれて右側開閉用アーム部60と左側開閉用アーム部62とが互いに近づくように回動し、右側苗植付体5Rが右方に回動し、これに連動して左側苗植付体5Lが左方に回動して、苗植付体5の下部側が左右に開いて下方に開放状態となる。そして、苗植付体5が上昇してカムの作用位置の変化により作動アーム64が苗植付体5に対して元の位置(後側)に回動して開閉用ケーブル61のインナーワイヤ61aが弛められ、左右に開いた苗植付体5の下部が閉じる。   With the above configuration, when the seedling planting body 5 is moved up and down by the drive rotation of the drive shaft 54 and reaches the lower end position, the operating arm 64 is rotated forward and the inner cable 61b of the opening / closing cable 61 is inner. The wire 61a is pulled to the arrow A side and the right opening / closing arm 60 and the left opening / closing arm 62 are rotated so as to approach each other, and the right seedling planting body 5R is rotated to the right and interlocked therewith. Then, the left seedling planting body 5L rotates to the left, and the lower side of the seedling planting body 5 opens to the left and right and opens downward. Then, the seedling planting body 5 rises and the operating arm 64 rotates to the original position (rear side) with respect to the seedling planting body 5 due to the change of the cam action position, so that the inner wire 61a of the opening / closing cable 61 is rotated. Is loosened and the lower part of the seedling planting body 5 opened to the left and right is closed.

このように、苗植付体5の開閉を開閉用ケーブル61で行う構成としたので、従来のロッドあるいはリンクによる開閉機構と比較して、開閉用ケーブル61の連結の自由度が高いため、前後に作動する作動アーム64により左側苗植付体5L及び右側苗植付体5Rを異なる方向(左右方向)に回動させることができると共に、作動アーム64の少量の作動量で苗植付体5の所望の開閉量を得る構成とすることができる。なお、左側苗植付体5Lと右側苗植付体5Rとは、スプリング65により苗植付体5の下部が閉じる側へ回動付勢されている。   As described above, since the seedling planting body 5 is configured to be opened and closed by the opening and closing cable 61, the opening and closing cable 61 has a higher degree of freedom of connection than the conventional opening and closing mechanism using a rod or link. The left arm planting body 5L and the right seedling planting body 5R can be rotated in different directions (left and right directions) by the actuating arm 64 that operates in the same manner, and the seedling planting body 5 can be operated with a small amount of operation of the operating arm 64. The desired opening / closing amount can be obtained. The left seedling planting body 5 </ b> L and the right seedling planting body 5 </ b> R are rotationally biased by the spring 65 toward the side where the lower part of the seedling planting body 5 is closed.

上下動機構4の上下の昇降リンク52,53における各々の回動先端部(後端部)は、上下各々の連結軸66,67を介して連結部材57に連結されている。前記連結部材57は、側面視三角形状のプレート68を左右に備え、この左右のプレート68で上下の昇降リンク52,53の先端部を挟んだ構成となっており、後部には左右のプレート68にまたがる左右方向の円柱状のボス69を設けている。なお、側面視で前記プレート68の三角形状の各頂点付近に前記連結軸66,67及びボス69を配置しており、上下の連結軸66,67よりボス69を後側に配置しているので、ボス69に対して後述の位置調節軸70をスライドさせるときに上下の連結軸66,67や上下の昇降リンク52,53が邪魔にならないようにしている。   Respective rotation front end portions (rear end portions) of the upper and lower lift links 52 and 53 of the vertical movement mechanism 4 are connected to a connection member 57 via upper and lower connection shafts 66 and 67, respectively. The connecting member 57 includes a plate 68 that is triangular in a side view on the left and right sides, and the left and right plates 68 sandwich the tip ends of the upper and lower elevating links 52 and 53. A columnar boss 69 extending in the left-right direction is provided. The connecting shafts 66 and 67 and the boss 69 are arranged near the triangular apexes of the plate 68 in a side view, and the boss 69 is arranged on the rear side of the upper and lower connecting shafts 66 and 67. The upper and lower connecting shafts 66 and 67 and the upper and lower elevating links 52 and 53 do not get in the way when a position adjusting shaft 70 described later is slid with respect to the boss 69.

なお、左右のプレート68は略正三角形状であり、上下の連結軸66,67部分を上下逆にして連結部材57を取り付けてもいいように構成している。前記円柱状のボス69の中心部のボス孔は、六角形状(多角形状)になっている。   The left and right plates 68 are substantially equilateral triangles, and the upper and lower connecting shafts 66 and 67 are turned upside down so that the connecting member 57 can be attached. The boss hole at the center of the cylindrical boss 69 has a hexagonal shape (polygonal shape).

一方、苗植付体5の基部5b(左右の基部5bL、5bRからなる)が回動自在に連結して、かつ苗ガイド51下部の周囲を囲むように設けられた立方体形状のガイドパイプ5aに、左右方向に延びる六角形状(多角形状)の位置調節軸70の一端を固着している。従って、前記ボス69に位置調節軸70が挿入されて連結部材57に苗植付体5が支持され、ボス69に対して位置調節軸70を摺動させて左右方向に移動させることにより、苗植付体5の左右位置を変更できる構成となっている。この苗植付体5の左右位置の変更は、落下供給位置39,40の変更に合わせて該落下供給位置39,40の下方に苗植付体5が位置するよう苗供給カップ25における配列ピッチ分の距離を変更できるように、位置調節軸70の長さが設定されている。   On the other hand, a base 5b (consisting of left and right bases 5bL and 5bR) of the seedling planting body 5 is rotatably connected to a cubic guide pipe 5a provided so as to surround the lower part of the seedling guide 51. One end of a hexagonal (polygonal) position adjusting shaft 70 extending in the left-right direction is fixed. Therefore, the position adjusting shaft 70 is inserted into the boss 69 and the seedling planting body 5 is supported by the connecting member 57, and the position adjusting shaft 70 is slid with respect to the boss 69 and moved in the left-right direction. It is the structure which can change the left-right position of the planting body 5. FIG. The change in the left and right position of the seedling planting body 5 is the arrangement pitch in the seedling supply cup 25 so that the seedling planting body 5 is positioned below the drop supply positions 39 and 40 in accordance with the change of the drop supply positions 39 and 40. The length of the position adjusting shaft 70 is set so that the minute distance can be changed.

すなわち、左右の苗植付体5の互いの間隔を第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍(1倍)分変化させることができ、ボス69及び位置調節軸70等により苗植付体5を移動できる植付位置変更機構A(69,70,71,91a,91b)が構成されている。   That is, the interval between the left and right seedling planting bodies 5 can be changed by an integral multiple (1 time) of the arrangement pitch in the first and second seedling supply cups 25b and 25c, and the boss 69 and the position adjusting shaft 70 can be changed. A planting position changing mechanism A (69, 70, 71, 91a, 91b) that can move the seedling planting body 5 is configured.

断面六角形状(多角形状)の位置調節軸70の端部にはラック70aが設けられ、三角形状プレート68の外側面に支持固定されたステッピングモータ71の回転軸に取り付けられたピニオン71aが、前記位置調節軸70のラック70aに噛み合う構成であるため、ステッピングモータ71の作動により位置調節軸70が円柱状のボス69に支持されて、ボス69内を左右方向に移動できる。従って苗植付体5の左右位置の変更ができる。苗植付体5の左右位置の変更により、落下供給位置39,40の変更に合わせて該落下供給位置39,40の下方に苗植付体5が位置するよう微調整することができる。なお、位置調節軸70がボス69内をスムーズに摺動できるように、ボス69にはグリスニップル69aを設けておき、潤滑油を適宜供給できるようにしている。   A rack 70a is provided at the end of the hexagonal section (polygonal) position adjusting shaft 70, and the pinion 71a attached to the rotating shaft of the stepping motor 71 supported and fixed to the outer surface of the triangular plate 68 is Since the position adjusting shaft 70 is engaged with the rack 70 a, the position adjusting shaft 70 is supported by the columnar boss 69 by the operation of the stepping motor 71, and the inside of the boss 69 can be moved in the left-right direction. Therefore, the left-right position of the seedling planting body 5 can be changed. By changing the left and right positions of the seedling planting body 5, fine adjustment can be made so that the seedling planting body 5 is positioned below the drop supply positions 39 and 40 in accordance with the change of the drop supply positions 39 and 40. Note that a grease nipple 69a is provided on the boss 69 so that the position adjusting shaft 70 can slide smoothly in the boss 69 so that lubricating oil can be supplied as appropriate.

この苗植付体5の左右位置の調整は、苗植付体5が圃場の土壌から抜けて上昇するタイミングで行い、しかも苗植付体5の全ストロークのうち、畝Uに植え付けた苗丈のてっぺんから苗供給カップ25b,25cの底蓋25aまでの間(図9の高さA内の間)を上昇している間に行うようにすると、苗の植付姿勢に影響を及ぼさず、また苗供給カップ25b,25cの底蓋25aに苗がかみ込まれるおそれがない。もし、苗植付体5の左右位置の調整を畝Uに植え付けた苗丈のより低い位置で行うと、苗植付体5が植え付けた苗に当たって、せっかく植え付けた苗を倒すおそれがある。   The left and right position adjustment of the seedling planting body 5 is performed at a timing when the seedling planting body 5 rises out of the soil in the field, and the seedling height planted on the ridge U of the entire stroke of the seedling planting body 5 If it is performed while rising from the top to the bottom lid 25a of the seedling supply cups 25b, 25c (in the height A of FIG. 9), it does not affect the planting posture of the seedling, Moreover, there is no possibility that the seedling is bitten into the bottom lid 25a of the seedling supply cups 25b and 25c. If adjustment of the left and right position of the seedling planting body 5 is performed at a position lower than the seedling height planted on the ridge U, the seedling planting body 5 may hit the seedling planted and may destroy the seedling planted.

上記苗植付体5の上昇タイミングは、植付出力軸59の所定箇所が一回転する毎にスイッチオンとなる植付出力軸59の一回転検出スイッチ72が該苗植付体5の上昇タイミングに対応した植付出力軸59の所定箇所を検出することで分かり、一回転検出スイッチ72が前記植付出力軸59の所定箇所を検出するとステッピングモータ71の作動制御により苗植付体5の左右移動を行う構成である。   The raising timing of the seedling planting body 5 is determined by the one rotation detection switch 72 of the planting output shaft 59 that is switched on every time a predetermined portion of the planting output shaft 59 makes one rotation. When the one-rotation detection switch 72 detects a predetermined position of the planting output shaft 59, the left and right of the seedling planting body 5 are controlled by the operation control of the stepping motor 71. It is the structure which moves.

また、苗植付体5の左右位置の変更を行うステッピングモータ71の作動制御用スイッチとして条間の基準位置X(条間変更における植付位置の変更範囲内において基準として設定した位置)を変える基準位置設定スイッチ91a(図2)と条間基準位置Xに対するストローク量(図9の距離Y)を決めるストローク量設定スイッチ91bの2つを図2に示す操作盤91に設けておくと、条間設定が容易となる。そして、条間調整された後の苗供給カップ25の苗落下供給位置が前記基準位置Xからのストローク量の設定値と異なる場合に、主クラッチレバー87により主クラッチ(図示せず)を入れる操作をすると、ブザー音等でオペレータに警告する。
このように苗植付体5の左右位置の調整を行うと、苗の植え付け作業能率を維持しながら任意の条間に設定でき、条間変更が簡単に行える。
Further, as the operation control switch for the stepping motor 71 that changes the right and left position of the seedling planting body 5, the reference position X of the striations (the position set as the reference within the change range of the planting positions in the interstitch change) is changed. If the operation position 91 shown in FIG. 2 is provided with the reference position setting switch 91a (FIG. 2) and the stroke amount setting switch 91b for determining the stroke amount (distance Y in FIG. 9) with respect to the reference position X between the strips, Easy setting. Then, when the seedling drop supply position of the seedling supply cup 25 after the gap adjustment is different from the set value of the stroke amount from the reference position X, an operation of putting a main clutch (not shown) by the main clutch lever 87 The operator is warned with a buzzer sound.
Thus, if the right-and-left position of the seedling planting body 5 is adjusted, it can be set between arbitrary strips while maintaining the seedling planting work efficiency, and the strips can be easily changed.

また、苗植付体5の上死点および下死点ではモータ71の作動を停止させると、苗植付体5は左右横方向への移動は停止する(上下方向には動いている)ので、苗植付の安定化が図れる。   Further, when the operation of the motor 71 is stopped at the top dead center and the bottom dead center of the seedling planting body 5, the seedling planting body 5 stops moving in the horizontal direction (moves in the vertical direction). Stabilization of seedling planting can be achieved.

また、位置調節軸70の断面の六角形状(多角形状)の対向する頂点が上下に位置するようにしており、上下方向の曲げに対する断面係数が向上するので、この位置調節軸70で苗植付体5を片持ち支持するのに必要な強度を得ることができる。   In addition, the opposite apexes of the hexagonal shape (polygonal shape) of the cross section of the position adjusting shaft 70 are positioned up and down, and the section coefficient for bending in the vertical direction is improved. The strength necessary for cantilevering the body 5 can be obtained.

このとき、左右の落下供給位置39,40の間隔は、苗供給カップ25における配列ピッチの5倍すなわち第一及び第二の苗供給カップ25b,25cにおける配列ピッチの2.5倍となる。従って、各々の落下供給位置39,40は苗供給カップ25における配列ピッチ分だけ位置変更できる構成となっており、左右の落下供給位置39,40の互いの間隔が、第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍(1倍)(苗供給カップ25における配列ピッチの偶数倍(2倍))の距離分変化するようになっている。   At this time, the distance between the left and right drop supply positions 39, 40 is 5 times the arrangement pitch in the seedling supply cup 25, that is, 2.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. Accordingly, each drop supply position 39, 40 can be changed in position by the arrangement pitch in the seedling supply cup 25, and the distance between the left and right drop supply positions 39, 40 is the first and second seedlings. It changes by the distance of an integral multiple (1 times) of the arrangement pitch in the supply cups 25b, 25c (an even multiple (2 times) of the arrangement pitch in the seedling supply cup 25).

上記構成により、上下動機構4の作動で苗植付体5の上下動が一周期動作する間に、第一及び第二の苗供給カップ25b,25cは各々における配列ピッチ分(一列状の苗供給カップ25の2個分)周回移動する。また、落下供給位置39,40で苗供給カップ25の底蓋25aが開くタイミングは、苗植付体5が苗供給カップ25の直下まで上昇したときとなるように設定している。これにより、苗供給カップ25が二つの苗植付体5の上方を直列的に通過しながら二つの苗植付体5に対して苗供給漏れが生じることなく同時に苗を供給でき、且つ、二つの苗植付体5の上方を通過した後に苗が供給されなかった苗供給カップ25が生じないよう余すことなく二つの苗植付体5に対して苗を供給できるものとなり、苗供給作業が余裕をもって行え、且つ、二つの苗植付体5に対して確実に苗を供給できる。   With the above-described configuration, the first and second seedling supply cups 25b and 25c are arranged for each arrangement pitch (one row of seedlings) while the vertical movement of the seedling planting body 5 is operated for one cycle by the operation of the vertical movement mechanism 4. Moves around the supply cup 25). The timing at which the bottom cover 25a of the seedling supply cup 25 is opened at the drop supply positions 39 and 40 is set to be when the seedling planting body 5 is raised to just below the seedling supply cup 25. Thus, the seedling supply cup 25 can supply seedlings simultaneously without passing through the two seedling planting bodies 5 without causing seedling supply leakage while passing through the upper part of the two seedling planting bodies 5 in series. It is possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 in which seedlings are not supplied after passing over one seedling planting body 5, and the seedling supply operation is performed. The seedling can be supplied with certainty and reliably supplied to the two seedling planting bodies 5.

また、この苗移植機1には鎮圧輪15、73が前後にあり、一対の前鎮圧輪15は苗植え付け前の畝面を均すだけでなく、苗植え付け高さの調節用のセンサー輪を兼ねており、該前鎮圧輪15の接地位置に応じてミッションケース8内の図示しない油圧バルブを作動制御して昇降用油圧シリンダ14を作動させて機体の高さを調整する機能も備えている。また、後鎮圧輪73は、植え付けた苗の周辺に覆土しながら苗の周辺の土壌を鎮圧する。なお、前後の鎮圧輪15,73は、機体旋回時等にレバー74の操作により上側に収納することができる。   In addition, the seedling transplanting machine 1 has front and rear pressure wheels 15 and 73. The pair of front pressure wheels 15 not only level the surface before planting the seedling but also provide a sensor wheel for adjusting the height of seedling planting. It also has a function of adjusting the height of the airframe by operating a hydraulic cylinder (not shown) in the mission case 8 according to the grounding position of the front pressure reducing wheel 15 and operating the lifting hydraulic cylinder 14. . Further, the rear pressure ring 73 reduces the soil around the seedling while covering the periphery of the planted seedling. The front and rear pressure-reducing wheels 15 and 73 can be accommodated on the upper side by operating the lever 74 when the vehicle is turning.

前記レバー74と一体で上下に回動するアーム75の回動先端部に左右方向に延びる左右支持軸76を設け、該左右支持軸76に上下に貫通するように設けた上下支持軸77の下端部に後鎮圧輪73を回転自在に設けている。なお、前記上下支持軸77は、植付条ごとに設けられ、左右に2本設けられている。また、左右支持軸76は、上下支持軸77が貫通する左右各々の可動部分と、この左右の可動部分の間で前記アーム75に連結される固定部分とを備え、前記可動部分が前記固定部分に対して該軸76方向(左右方向)にスライド移動する構成となっている。従って、左右の苗植付体5の左右位置の変更に合わせて、可動部分をスライド移動させて後鎮圧輪73を左右移動させることができる。なお、後鎮圧輪73の左右移動に合わせて、前鎮圧輪15も左右移動する構成としてもよい。   A left and right support shaft 76 extending in the left-right direction is provided at the pivoting tip of an arm 75 that rotates up and down integrally with the lever 74, and the lower end of the vertical support shaft 77 provided so as to penetrate the left and right support shaft 76 vertically. A rear pressure wheel 73 is rotatably provided at the part. In addition, the said up-and-down support shaft 77 is provided for every planting strip, and two are provided in the right and left. The left and right support shafts 76 include left and right movable parts through which the upper and lower support shafts 77 penetrate, and a fixed part connected to the arm 75 between the left and right movable parts, and the movable part is the fixed part. On the other hand, it is configured to slide in the direction of the shaft 76 (left and right direction). Accordingly, the rear pressure wheel 73 can be moved to the left and right by sliding the movable part in accordance with the change in the left and right positions of the left and right seedling planting bodies 5. In addition, it is good also as a structure which the front pressure wheel 15 moves right and left according to the left-right movement of the rear pressure wheel 73.

また、ボンネット78の上方に苗供給装置24側に向くべく後向きの座席79を設け、苗供給装置24との間に足を乗せる平面状のステップ80を設けている。前記座席79は、ボンネット78の左右一方側(右側)を通って上方に延びる支持フレーム81を介して機体に支持されている。   Further, a seat 79 facing backward is provided above the bonnet 78 so as to face the seedling supply device 24 side, and a flat step 80 for placing a foot between the seedling supply device 24 is provided. The seat 79 is supported by the airframe via a support frame 81 that extends upward through the left and right sides (right side) of the bonnet 78.

前記ステップ80は、機体平面視で座席79と苗供給装置24との間に配置されるメインステップ82と、座席79及びボンネット78の左右両側に設けたサブステップ83とで構成される。前記サブステップ83は、機体の前端部からメインステップ82近くまで前後に延設され、前部83aが後部83bより一段低い位置に構成され、作業者が機体の前端部から乗降することができるように構成されている。このサブステップ83の上段となる後部83bの下方には車輪(後輪)7を昇降させるための昇降機構(ローリングシリンダ11,ロッド13等)を配置することができ、機体のスペースを有効利用して機体のコンパクト化を図っている。   The step 80 includes a main step 82 disposed between the seat 79 and the seedling supply device 24 in plan view of the body, and sub-steps 83 provided on the left and right sides of the seat 79 and the bonnet 78. The sub-step 83 extends forward and backward from the front end portion of the airframe to near the main step 82, the front portion 83a is configured to be one step lower than the rear portion 83b, and allows an operator to get on and off from the front end portion of the airframe. It is configured. An elevating mechanism (rolling cylinder 11, rod 13, etc.) for raising and lowering the wheel (rear wheel) 7 can be arranged below the rear part 83 b which is the upper stage of the sub-step 83, and the space of the airframe is effectively used. To make the aircraft more compact.

また、車輪(後輪)7のトレッド変更に応じて、サブステップ83の後部の下方に上下に回動する走行伝動ケースとなるチェーン伝動ケース9を配置することができる。また、メインステップ82の後端部には上方に傾斜して立ち上がる立ち上がり部82aを設けており、該立ち上がり部82aにより座席79に座る作業者の足が苗植付装置23の上下動機構4に接触しないように防護している。また、立ち上がり部82aを苗供給装置24の下方に位置させることにより、機体の前後長を短縮できる。また、メインステップ82は、立ち上がり部82aを備えることにより、強度が向上する。なお、立ち上がり部82aには、左右の後輪7と苗植付装置23並びに苗供給装置24の駆動を入り切り操作する乗車用主クラッチレバー84と、左右の後輪7の駆動を断つことができる左右各々のサイドクラッチペダル85とを設けており、座席79にいる作業者が機体の停止や機体の進行方向の修正を行うことができる。   Further, a chain transmission case 9 serving as a traveling transmission case that rotates up and down can be disposed below the rear portion of the substep 83 in accordance with a tread change of the wheel (rear wheel) 7. In addition, a rising portion 82a that rises while being inclined upward is provided at the rear end portion of the main step 82, and an operator's foot sitting on the seat 79 is attached to the vertical movement mechanism 4 of the seedling planting device 23 by the rising portion 82a. Protects against contact. Further, by positioning the rising portion 82a below the seedling supply device 24, the longitudinal length of the machine body can be shortened. Moreover, the main step 82 is provided with the rising portion 82a, whereby the strength is improved. It should be noted that at the rising portion 82a, the driving main clutch lever 84 for turning on and off the left and right rear wheels 7, the seedling planting device 23 and the seedling feeding device 24, and the driving of the left and right rear wheels 7 can be cut off. Left and right side clutch pedals 85 are provided so that an operator in the seat 79 can stop the aircraft and correct the traveling direction of the aircraft.

なお、上述ではサブステップ83を左右両側に設ける構成としたが、左右何れか一方のみにサブステップ83を設ける構成としてもよく、このときは座席79の支持フレーム81がない側(左側)にサブステップ83を設ける構成とすれば、前記支持フレーム81が邪魔にならずにサブステップ83により容易に乗降できる。   In the above description, the sub-step 83 is provided on both the left and right sides. However, the sub-step 83 may be provided on only one of the left and right sides. In this case, the sub-step 83 may be provided on the side without the support frame 81 (left side). If the step 83 is provided, the support frame 81 can easily get on and off by the sub-step 83 without obstructing.

左右の前輪6の間となる機体の前端部には畝Uの上面に接地して該畝Uの終端を検出する畝終端センサ86を設け、該畝終端センサ86は機体の前進により畝のないところに到達して畝上面を感知しなくなることにより畝の終端に到達したことを検出する構成となっている。この畝終端センサ86による畝の終端の検出に基づいて、主クラッチを自動的に切って左右の後輪7の駆動と苗植付装置23並びに苗供給装置24の駆動を停止し、機体を停止させると共に、警報(例えばブザー等の警音)を出して作業者に告知する。   A front end of the airframe between the left and right front wheels 6 is provided with a front end sensor 86 that contacts the upper surface of the front U and detects the end of the front U. The front end sensor 86 is free from wrinkles due to the forward movement of the front body. However, it is configured to detect that the terminal end of the bag is reached by reaching the place and not sensing the upper surface of the bag. Based on detection of the heel end by the heel end sensor 86, the main clutch is automatically disengaged to stop the driving of the left and right rear wheels 7, the driving of the seedling planting device 23 and the seedling supplying device 24, and the machine body is stopped. At the same time, an alarm (for example, a buzzer or the like) is issued to notify the operator.

座席79に座る作業者は、機体の進行方向に対して後ろ向きとなり、苗補給作業に集中しているため機体の前方を確認しにくく、機体が畝の終端に達したことに気づかず、周囲の構造物への衝突等の事故を発生させるおそれがあるが、前記畝終端センサ86により畝の終端で機体を自動停止すると共に警報で畝の終端に達したことを告知するため、安全に作業が行え、また機体の前方の状況及び畝の終端の位置を気にせずに苗供給装置24への苗補給作業を集中して行え、植付作業能率が向上する。前記畝終端センサ86は、機体の左右中央(左右の車輪6,7のトレッド)に対して右寄りの位置に配置され、ローリングシリンダ11による左側の後輪7の上下動に伴う上下動が小さいので、適確に且つ安定して畝の上面を検出することができる。また、畝終端センサ86は、機体の対地高さを制御するための前鎮圧輪15と苗植付体5の苗植付位置とを避けた左右位置(右側の前鎮圧輪15及び苗植付位置より左側)に設けているので、苗植付位置の土壌を荒らさず、植付精度を低下させないようにしている。   An operator sitting on the seat 79 faces backwards with respect to the aircraft traveling direction and concentrates on the seedling replenishment work, so it is difficult to confirm the front of the aircraft, and the operator has not noticed that the aircraft has reached the end of the heel. There is a risk of causing an accident such as a collision with a structure. However, the saddle end sensor 86 automatically stops the aircraft at the end of the kite and notifies the end of the kite by an alarm. It is possible to perform the seedling replenishment work to the seedling supply device 24 without worrying about the situation in front of the machine body and the position of the end of the heel, thereby improving the planting work efficiency. The heel end sensor 86 is disposed at a position to the right of the left and right center of the aircraft (tread of the left and right wheels 6 and 7), and the vertical movement accompanying the vertical movement of the left rear wheel 7 by the rolling cylinder 11 is small. The upper surface of the ridge can be detected accurately and stably. Further, the heel end sensor 86 is located in the left and right positions (the right front pressure wheel 15 and the seedling planting position) that avoid the front pressure wheel 15 and the seedling planting position of the seedling planting body 5 for controlling the height of the aircraft to the ground. Since it is provided on the left side of the position, the soil at the seedling planting position is not roughened and the planting accuracy is not reduced.

また、操縦ハンドル2の近くには、左右の後輪7と苗植付装置23並びに苗供給装置24の駆動を手動で入り切りする主クラッチレバー87と、苗植付装置23並びに苗供給装置24の駆動のみを手動で入り切りする植付操作レバー88とを備えている。なお、前記植付操作レバー88により、昇降用油圧シリンダ14を作動させて手動で機体を昇降操作することもできる。そして、この植付操作レバー88の操作位置を検出するセンサ(検出手段)を設け、該植付操作レバー88により苗植付装置23並びに苗供給装置24が駆動状態に操作されているときだけ、前述の畝終端センサ86による機体の自動停止制御及び警報が作動する構成としている。   Also, near the steering handle 2, there are a main clutch lever 87 for manually turning on and off the left and right rear wheels 7, the seedling planting device 23 and the seedling feeding device 24, and the seedling planting device 23 and the seedling feeding device 24. And a planting operation lever 88 for manually turning on and off only the drive. The planting operation lever 88 can be used to operate the lifting hydraulic cylinder 14 to manually lift and lower the machine body. Then, a sensor (detection means) for detecting the operation position of the planting operation lever 88 is provided, and only when the seedling planting device 23 and the seedling supply device 24 are operated in the drive state by the planting operation lever 88, It is configured such that the automatic stop control and alarm of the airframe are activated by the aforementioned heel end sensor 86.

これにより、植付作業時のみ機体の自動停止制御及び警報を作動させることができ、移動走行時や畝終端での機体旋回時に、畝終端センサ86が畝上面を検出しないことにより不必要に機体が停止するようなことを防止でき、操作性が向上する。なお、上述の植付操作レバー88による機体の自動停止制御及び警報の作動の入り切りに代えてあるいは併用して、座席79に作業者が着座したことを検出する着座センサを設け、座席79に作業者が着座しているときだけ、機体の自動停止制御及び警報が作動する構成としてもよい。また、畝終端センサ86による畝終端の検出で、警報が先に作動し、その所定時間後(数秒後)に機体が自動停止する構成とすることができる。なお、機体の自動停止は、エンジン3を停止させることにより行ってもよい。   As a result, the automatic stop control and alarm of the aircraft can be activated only during planting work, and the aircraft endless sensor 86 is unnecessarily detected by the heel end sensor 86 not detecting the upper surface of the heel when traveling or turning at the heel end. Can be prevented, and the operability is improved. A seating sensor for detecting that an operator is seated on the seat 79 is provided in place of or in combination with the above-described automatic stop control of the aircraft by the planting operation lever 88 and on / off of the alarm operation. Only when the person is seated, the automatic stop control and warning of the aircraft may be activated. Further, it is possible to adopt a configuration in which an alarm is activated first by detection of a heel end by the heel end sensor 86 and the airframe automatically stops after a predetermined time (several seconds later). The airframe may be automatically stopped by stopping the engine 3.

座席79の左右側方には、苗載台89を配置している。該苗載台89は、載置する苗収容枠(苗箱、苗トレイ又は苗コンテナ等)の四角形状の底面に対して一部を欠如し、その欠如した部分の外縁が苗供給装置24の苗供給カップ25の周回移動軌跡の円弧状部分37に沿うような形状となっており、苗収容枠を載置していないときは苗供給カップ25への苗補給の邪魔にならないようにしている。   On the left and right sides of the seat 79, a seedling stand 89 is disposed. The seedling stage 89 lacks a part of the rectangular bottom surface of the seedling storage frame (seedling box, seedling tray, seedling container, etc.) to be placed, and the outer edge of the lacked part is the seedling supply device 24. It has a shape that follows the arc-shaped portion 37 of the orbital movement trajectory of the seedling supply cup 25 so that it does not interfere with the seedling supply to the seedling supply cup 25 when the seedling storage frame is not placed. .

また、苗載台89は、苗供給装置24の一部の苗供給カップ25の上方に重複するが、移動リンク機構90により機体側方に移動できる構成としたので、座席79に座る作業者が苗補給作業を行いやすい位置に任意に移動でき、機体前端部からステップ80を介して乗降するときにはステップ80(サブステップ83)より左右方向外側へ移動させて、乗降の邪魔にならないようにでき、トラックへの積込時や倉庫への格納時等には左右方向内側へ移動させて、機体の左右幅を縮小することができる。なお、苗供給装置24の苗供給カップ25の上方に重複しない位置まで苗載台89を左右方向外側へ移動できる構成としてもよい。   In addition, the seedling stage 89 overlaps above a part of the seedling supply cup 25 of the seedling supply device 24, but is configured to be moved to the side of the machine body by the moving link mechanism 90, so that an operator sitting on the seat 79 can It can be moved arbitrarily to a position where it is easy to perform seedling replenishment work, and when getting on and off from the front end of the aircraft via step 80, it can be moved to the outside in the left and right direction from step 80 (sub step 83) so as not to obstruct getting on and off, When loading into a truck or storing in a warehouse, it can be moved inward in the left-right direction to reduce the left-right width of the aircraft. In addition, it is good also as a structure which can move the seedling mounting stand 89 to the left-right direction outer side to the position which does not overlap above the seedling supply cup 25 of the seedling supply apparatus 24. FIG.

また、移動リンク機構90は、各リンクのリンク長を異ならせた構成となっており、苗供給装置24への苗補給のために苗載台89を左右方向内側へ移動させたときは該苗載台89を斜め後内向きに向ける構成となっている。これにより、苗補給作業の容易化が図れる。   Further, the moving link mechanism 90 has a structure in which the link length of each link is different. When the seedling mounting base 89 is moved inward in the left-right direction for supplying seedlings to the seedling supply device 24, the seedlings are transferred. The stage 89 is configured to face the rearward and rearward direction. Thereby, the seedling replenishment work can be facilitated.

以上により、この2条植えの苗移植機において、苗供給カップ25における配列ピッチの3倍、すなわち第一及び第二の苗供給カップ25b、25cにおける配列ピッチの1.5倍となる狭い植付条間で苗を植えつけるときは、左右の苗植付体25をボス69及び位置調節軸70等からなる植付位置変更機構A(69,70,71,91a,91b)により互いに近づく側に移動させ、左右支持軸76の可動部分をスライド移動させて左右の植付条の後鎮圧輪73を互いに近づく側に移動させると共に、第一移動支持体42eを長孔46により最も周回下手側(右側)に位置させ、第二移動支持体42fを長孔48により最も周回上手側(左側)に位置させて、左右の落下供給位置39,40を互いに近づく側に位置変更させる。   Thus, in this two-plant seedling transplanter, narrow planting that is three times the arrangement pitch in the seedling supply cup 25, that is, 1.5 times the arrangement pitch in the first and second seedling supply cups 25b and 25c. When planting seedlings between the streaks, the left and right seedling planting bodies 25 are moved closer to each other by a planting position changing mechanism A (69, 70, 71, 91a, 91b) including the boss 69 and the position adjusting shaft 70. The movable part of the left and right support shaft 76 is slid to move the rear pressure reducing wheels 73 of the left and right planting strips toward the side closer to each other, and the first moving support 42e is moved to the lowermost side of the circumference by the long hole 46 ( The second moving support 42f is positioned on the most circumferential upper side (left side) through the long hole 48, and the left and right drop supply positions 39, 40 are repositioned closer to each other.

そして、苗供給カップ25における配列ピッチの5倍すなわち第一及び第二の苗供給カップ25b,25cにおける配列ピッチの2.5倍となる広い植付条間で苗を植えつけるときは、左右の苗植付体5を前記植付位置変更機構A(69,70,71,91a,91b)により互いに離れる側に移動させ、左右支持軸76の可動部分をスライド移動させて左右の植付条の後鎮圧輪73を互いに離れる側に移動させ、第一移動支持体42eを長孔46により最も周回上手側(左側)に位置させ、第二移動支持体42fを長孔48により最も周回下手側(右側)に位置させて、左右の落下供給位置39,40を互いに離れる側に位置変更させると共に、円弧状長孔29a及びボルト36等からなる周回タイミング変更機構により巻掛スプロケット29の位相を苗供給カップ25における配列ピッチ分(第一及び第二の苗供給カップ25b,25cにおける配列ピッチの2分の1分)変更して、左右の苗植付体5が上動したときに、第一(左側)の落下供給位置39に第一の苗供給カップ25bが到達し、第二(右側)の落下供給位置40に第二の苗供給カップ25cが到達するように、上下動機構4の作動に対する苗供給カップ25の周回位置(位相)を変更する。   And when planting seedlings between wide planting strips that is 5 times the arrangement pitch in the seedling supply cup 25, that is, 2.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c, The seedling planting body 5 is moved away from each other by the planting position changing mechanism A (69, 70, 71, 91a, 91b), and the movable part of the left and right support shaft 76 is slid to move the left and right planting strips. The rear pressure wheel 73 is moved to the side away from each other, the first moving support 42e is positioned on the most peripheral upper side (left side) through the long hole 46, and the second moving support 42f is positioned on the most peripheral lower side (longer side 48). The right and left drop supply positions 39, 40 are moved away from each other, and the winding sprocket is moved by a rotation timing changing mechanism including an arc-shaped long hole 29a, a bolt 36, and the like. The phase of 9 was changed by the arrangement pitch in the seedling supply cup 25 (1/2 of the arrangement pitch in the first and second seedling supply cups 25b and 25c), and the right and left seedling planting bodies 5 moved up. When the first seedling supply cup 25b arrives at the first (left) fall supply position 39 and the second seedling supply cup 25c reaches the second (right) fall supply position 40 The rotation position (phase) of the seedling supply cup 25 with respect to the operation of the moving mechanism 4 is changed.

すなわち、この複数条植えの苗移植機は、上下動機構4により所定の作動軌跡で上下動して圃場に苗を植え付ける構成の苗植付体5を左右に各々設け、該左右各々の苗植付体5へ苗を供給する苗供給装置24を設け、前記苗供給装置24は、苗を収容する複数の苗供給カップ25で構成される苗収容体と、該複数の苗供給カップ25を所定の配列ピッチでループ状に配置し順次各々の苗植付体5の上方を通過するように周回移動させる移動機構26と、該移動機構26により苗供給カップ25が苗植付体5の上方位置となる落下供給位置39,40に移動すると苗供給カップ25が収容する苗を上下動機構4で上動した苗植付体5へ落下供給させる苗落下機構となる苗落下供給機構(ターンテーブル)27とを備え、該苗落下供給機構27は、左右各々の苗植付体5に対応する左右各々の落下供給位置39,40を備えると共に、一方の落下供給位置39で落下供給する苗を収容する第一の苗供給カップ25bと他方の落下供給位置40で落下供給する苗を収容する第二の苗供給カップ25cとを各別に設けて、前記第一及び第二の苗供給カップ25b、25cが移動機構26による周回移動で各々の落下供給位置39,40に同じ回数到達する構成、すなわち第一及び第二の苗供給カップ25b、25cを同じ配列ピッチで配列した構成とし、苗供給カップ25の周回移動経路に沿って左右の苗植付体5の互いの間隔が第一及び第二の苗供給カップ25b、25cにおける配列ピッチの整数倍の距離分変化するように苗植付体5を移動できる植付位置変更機構A(69,70,71,91a,91b)を設け、苗落下供給機構27は前記植付位置変更機構A(69,70,71,91a,91b)による苗植付体5の移動量に合わせて左右の落下供給位置39,40の互いの間隔が変化するように落下供給位置39,40を変更できる構成とし、植付位置変更機構A(69,70,71,91a,91b)は左右両方の苗植付体5を互いに反対側に移動させる構成とし、苗落下供給機構27は左右両方の落下供給位置39,40を互いに反対側に変更できる構成とし、前記左右の落下供給位置39,40の変更に合わせて左右各々の苗植付体5が上動したときに該苗植付体5へ落下供給する苗を収容する苗供給カップ25が当該落下供給位置39,40に到達するように上下動機構4の作動に対する苗供給カップ25の周回位置を変更する周回タイミング変更機構を設けている。   That is, this multi-row seedling transplanting machine is provided with a seedling planting body 5 configured to plant a seedling in a field by moving up and down with a predetermined operating locus by a vertical movement mechanism 4, respectively. A seedling supply device 24 for supplying seedlings to the appendix 5 is provided. The seedling supply device 24 is configured to provide a seedling container that includes a plurality of seedling supply cups 25 that store seedlings, and a plurality of seedling supply cups 25. A moving mechanism 26 that is arranged in a loop with an arrangement pitch of the above and sequentially moves around so as to pass above each seedling planting body 5, and the seedling supply cup 25 is positioned above the seedling planting body 5 by the moving mechanism 26. A seedling drop supply mechanism (turntable) that becomes a seedling dropping mechanism that drops and supplies the seedlings accommodated in the seedling supply cup 25 to the seedling planting body 5 that has been moved up by the vertical movement mechanism 4 when moved to the fall supply positions 39, 40 27, the seedling drop supply mechanism 27 is A first seedling supply cup 25b for storing seedlings to be dropped and supplied at one of the drop supply positions 39 and a drop supply of the other are provided, including left and right drop supply positions 39 and 40 corresponding to the right and left seedling planting bodies 5, respectively. A second seedling supply cup 25c that accommodates seedlings to be supplied at a position 40 is provided separately, and the first and second seedling supply cups 25b and 25c are moved by the moving mechanism 26 to move to the respective drop supply positions. 39 and 40, the first and second seedling supply cups 25b and 25c are arranged at the same arrangement pitch, and the right and left seedling transplanted bodies along the circumferential movement path of the seedling supply cup 25 The planting position changing mechanism A (69, 70, 5) that can move the seedling planting body 5 so that the distance between each other is changed by an integral multiple of the arrangement pitch in the first and second seedling supply cups 25b, 25c. 7 , 91a, 91b), and the seedling drop supply mechanism 27 has left and right drop supply positions 39 according to the amount of movement of the seedling planting body 5 by the planting position changing mechanism A (69, 70, 71, 91a, 91b). , 40 can be changed so that the drop supply positions 39, 40 can be changed, and the planting position changing mechanism A (69, 70, 71, 91a, 91b) The seedling drop supply mechanism 27 is configured to be able to change both the left and right drop supply positions 39, 40 to the opposite sides, and to the left and right according to the change of the left and right drop supply positions 39, 40, respectively. Against the operation of the vertical movement mechanism 4 so that the seedling supply cup 25 that accommodates the seedlings to be supplied to the seedling planting body 5 when the seedling planting body 5 is moved up reaches the fall supply positions 39 and 40. Around the seedling supply cup 25 A turning timing changing mechanism for changing the turning position is provided.

従って、苗供給装置24が複数の苗供給カップ25をループ状経路で移動機構26により周回移動させ、苗落下供給機構27により、第一の苗供給カップ25bが一方(左側)の落下供給位置39に到達すると苗を下方の苗植付体5へ落下供給し、第二の苗供給カップ25cが他方(右側)の落下供給位置40に到達すると苗を下方の苗植付体5へ落下供給し、左右の苗植付体5が上下動機構4により所定の作動軌跡で上下動して圃場に苗を植え付ける。   Accordingly, the seedling supply device 24 moves the plurality of seedling supply cups 25 around the loop path by the moving mechanism 26, and the seedling dropping supply mechanism 27 causes the first seedling supply cup 25 b to fall on one side (left side). When the second seedling supply cup 25c reaches the other (right side) drop supply position 40, the seedling is dropped and supplied to the lower seedling planting body 5. The right and left seedling planting bodies 5 are moved up and down by a vertical movement mechanism 4 along a predetermined operation locus to plant seedlings in the field.

そして、植付条間を変更するとき、植付位置変更機構A(69,70,71,91a,91b)により苗供給カップ25の周回移動経路に沿って左右の苗植付体5の互いの間隔が第一及び第二の苗供給カップ25b、25cにおける配列ピッチの整数倍の距離分変化するように苗植付体5を移動すると共に、前記植付位置変更機構A(69,70,71,91a,91b)による苗植付体5の移動量に合わせて左右の落下供給位置39,40の互いの間隔が変化するように落下供給位置39,40を変更でき、苗植付体5が上下動機構4で上動したタイミングで該苗植付体5へ苗を落下供給することができ、苗植付体5への苗の供給を適正に行える。   Then, when changing between planting strips, the planting position changing mechanism A (69, 70, 71, 91a, 91b) causes the seedling planting bodies 5 on the left and right side to move along the circular movement path of the seedling supply cup 25. The seedling planting body 5 is moved so that the interval is changed by a distance that is an integral multiple of the arrangement pitch in the first and second seedling supply cups 25b, 25c, and the planting position changing mechanism A (69, 70, 71). , 91a, 91b), the drop supply positions 39, 40 can be changed so that the distance between the left and right drop supply positions 39, 40 changes according to the amount of movement of the seedling planting body 5 according to The seedling can be dropped and supplied to the seedling planting body 5 at the timing when it is moved up by the vertical movement mechanism 4, and the seedling can be appropriately supplied to the seedling planting body 5.

なお、植付条間を変更するとき、植付位置変更機構A(69,70,71,91a,91b)により左右両方の苗植付体5を互いに反対側に移動させ、左右両方の落下供給位置39,40を互いに反対側に変更し、周回タイミング変更機構により上下動機構4の作動に対する苗供給カップ25の周回位置を変更し、左右の落下供給位置39,40の変更に合わせて左右各々の苗植付体5が上動したときに該苗植付体5へ落下供給する苗を収容する苗供給カップ25が当該落下供給位置39,40に到達するようにするため、苗植付体5が上下動機構4で上動したタイミングで該苗植付体5へ苗を落下供給することができ、苗植付体5への苗の供給を適正に行えると共に、左右の苗植付位置を共に反対側に移動させることにより、所望の植付条間で左右の車輪6,7で跨ぐ畝の中央に対して左右対称な位置に苗を植え付けるように植付位置を変更することができる。   When changing between the planting strips, both the right and left seedling planting bodies 5 are moved to the opposite sides by the planting position changing mechanism A (69, 70, 71, 91a, 91b), and both left and right fall supply The positions 39 and 40 are changed to opposite sides, the turning position of the seedling supply cup 25 with respect to the operation of the vertical movement mechanism 4 is changed by the turning timing change mechanism, and each of the left and right according to the change of the left and right drop supply positions 39 and 40 In order for the seedling supply cup 25 that accommodates the seedling to be supplied to the seedling planting body 5 to reach the falling supply positions 39 and 40 when the seedling planting body 5 is moved up, The seedling can be dropped and supplied to the seedling planting body 5 at the timing when the 5 moves up and down by the vertical movement mechanism 4, and the seedling planting body 5 can be appropriately supplied with the seedling planting positions on the left and right By moving them together to the opposite side, In can be changed planting position to instill seedlings symmetrical positions with respect to the center of the ridge across the left and right wheels 6,7.

従って、植付条間を変更しても、苗植付体5への苗の供給を適正に行え、苗の植付精度を維持できる。また、苗植付体5の移動と落下供給位置39,40の変更とにより、簡単に植付条間を変更できる。特に、植付条間を変更しても、左右の落下供給位置39,40と該落下供給位置39,40で落下供給する苗を収容する苗供給カップ25b、25cとの対応関係が変わらないので、左右の落下供給位置39,40の変更を第一移動支持体42e及び第二移動支持体42fの位置変更という簡単な構成で行え、更に周回タイミング変更機構による苗供給カップ25の周回位置(位相)の変更を従動スプロケット35に対する巻掛スプロケット29の回転位相の変更という簡単な構成でチェン34及び苗供給カップ25の巻回を外さずに行え、植付条間の変更が容易になる。なお、苗植付体5及び鎮圧輪73の位置変更は、位置調節軸70及び左右支持軸76の可動部分をスライドさせるだけなので、容易に行える。   Therefore, even if the spacing between the planting lines is changed, the seedling can be properly supplied to the seedling planting body 5 and the planting accuracy of the seedling can be maintained. Further, the distance between the planting strips can be easily changed by moving the seedling planting body 5 and changing the drop supply positions 39 and 40. In particular, even if the spacing between the planting lines is changed, the correspondence between the left and right drop supply positions 39, 40 and the seedling supply cups 25b, 25c that accommodate the seedlings to be supplied at the drop supply positions 39, 40 does not change. The left and right drop supply positions 39, 40 can be changed with a simple configuration of changing the positions of the first moving support 42e and the second moving support 42f, and the rotation position (phase) of the seedling supply cup 25 by the rotation timing changing mechanism. ) Can be changed without removing the winding of the chain 34 and the seedling supply cup 25 with a simple configuration of changing the rotational phase of the winding sprocket 29 with respect to the driven sprocket 35, and the change between the planting strips becomes easy. Note that the position change of the seedling planting body 5 and the pressure-reducing wheel 73 can be easily performed because only the movable parts of the position adjusting shaft 70 and the left and right support shafts 76 are slid.

なお、上述によると植付条間の変更量は第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍の距離分となるが、苗植付体5への苗の落下供給に支障がない程度に落下供給位置に対して苗植付体5の左右位置を若干相違させる等して、植付条間の変更量を第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍の距離とは異ならせ、所望の植付条間に設定することも可能である。例えば、苗供給カップ25b,25cと苗植付体5との構成によっては、狭い植付条間で320mmに設定し、広い植付条間で480mmに設定することも可能である。   According to the above, the amount of change between the planting strips is a distance that is an integral multiple of the arrangement pitch in the first and second seedling supply cups 25b, 25c. The arrangement pitch between the first and second seedling supply cups 25b and 25c is changed by changing the left and right positions of the seedling planting body 5 slightly different from the drop supply position to the extent that there is no hindrance. It is also possible to set the distance between desired planting strips, different from the integral multiple distance. For example, depending on the configuration of the seedling supply cups 25b and 25c and the seedling planting body 5, it may be set to 320 mm between narrow planting strips and 480 mm between wide planting strips.

なお、上述の構成に限らず、各々の落下供給位置39,40を苗供給カップ25における配列ピッチの奇数倍の距離分位置変更できる構成とし、左右の落下供給位置の互いの間隔を第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍(苗供給カップ25における配列ピッチの偶数倍)の距離分変化するように構成すればよく、植付条間の調節範囲に応じて左右の落下供給位置の変更を設定すればよい。   In addition, not only the above-mentioned structure, it is set as the structure which can change the position of each fall supply position 39 and 40 by the distance of the odd multiple of the arrangement pitch in the seedling supply cup 25, and the space | interval of the left and right fall supply positions is first and What is necessary is just to comprise so that it may change by the distance of the integral multiple of the arrangement pitch in the 2nd seedling supply cup 25b, 25c (even multiple of the arrangement pitch in the seedling supply cup 25), and right and left according to the adjustment range between planting stripes What is necessary is just to set the change of the fall supply position.

また、上述の構成に代えて、植付位置を変更するにあたり、植付位置変更機構A(69,70,71,91a,91b)により苗供給カップ25の周回移動経路に沿って左右の苗植付体5の互いの間隔が第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍の距離分変化するように一方又は各々の苗植付体5を移動すると共に、前記植付位置変更機構A(69,70,71,91a,91b)による一方又は各々の苗植付体5の移動量に合わせて一方又は各々の落下供給位置を変更する構成としてもよい。このときは、周回タイミング変更機構による苗供給カップ25の周回位置(位相)の変更は不要となる。   Further, instead of the above-described configuration, when changing the planting position, the planting position changing mechanism A (69, 70, 71, 91a, 91b) causes the right and left seedlings to be planted along the circulation path of the seedling supply cup 25. One or each seedling planting body 5 is moved so that the interval between the appendages 5 changes by an integral multiple of the arrangement pitch of the first and second seedling supply cups 25b, 25c, and the planting is performed. It is good also as a structure which changes one or each fall supply position according to the moving amount of one or each seedling planting body 5 by position change mechanism A (69,70,71,91a, 91b). At this time, it is not necessary to change the turning position (phase) of the seedling supply cup 25 by the turning timing changing mechanism.

なお、植付位置を変更するにあたり、左右各々の苗植付体5の移動量を異ならせるが、左右の苗植付体5の互いの間隔が第一及び第二の苗供給カップ25b,25cにおける配列ピッチの整数倍の距離分変化するように構成してもよい。このとき、周回タイミング変更機構による苗収容体5の周回位置(位相)の変更量は、複数の落下供給位置のうちの苗供給カップ25の周回経路における位置変更が最も小さい落下供給位置の位置変更量に合わせるとよい。   In addition, in changing a planting position, although the moving amount of each right and left seedling planting body 5 is varied, the distance between the left and right seedling planting bodies 5 is the first and second seedling supply cups 25b and 25c. It may be configured to change by a distance that is an integral multiple of the arrangement pitch at. At this time, the change amount of the rotation position (phase) of the seedling container 5 by the rotation timing change mechanism is the position change of the fall supply position with the smallest position change in the rotation path of the seedling supply cup 25 among the plurality of drop supply positions. It is good to match the amount.

なお、上述では左右の苗植付体5及び落下供給位置39,40を左右真直方向に位置変更する構成について説明したが、左右の苗植付体5及び落下供給位置39,40を、苗供給カップ25の周回経路に合わせて、例えば前後斜め方向に位置変更しながら左右位置を変更する構成としてもよい。   In addition, although the structure which changes the position of the right and left seedling planting bodies 5 and the drop supply positions 39 and 40 in the left-right straight direction has been described above, the left and right seedling planting bodies 5 and the fall supply positions 39 and 40 are supplied as seedlings. For example, the left and right positions may be changed while changing the position in an oblique direction in the front-rear direction in accordance with the circulation path of the cup 25.

また、上述は2条植えの構成について説明したが、3条以上の構成に応用してもよい。このとき、周回タイミング変更機構による苗収容体5の周回位置(位相)の変更量は、複数の落下供給位置39,40のうちの苗収容体5の周回経路における位置変更が最も小さい落下供給位置39,40の位置変更量に合わせるとよい。   Moreover, although the above demonstrated the structure of 2 row planting, you may apply to the structure of 3 or more rows. At this time, the change amount of the rotation position (phase) of the seedling container 5 by the rotation timing changing mechanism is the fall supply position with the smallest position change in the circulation path of the seedling container 5 among the plurality of drop supply positions 39 and 40. It is good to match the position change amount of 39,40.

上述は複数条に並木植えする構成について説明したが、例えば左右の苗植付体5の作動タイミングを異ならせた構成等の千鳥植えする構成に応用してもよい。なお、左右の苗植付体5の作動タイミングを異ならせた場合は、第一及び第二の苗収容体が移動機構による周回移動で各々の落下供給位置39,40に異なるタイミングで同じ回数到達する構成となる。   Although the above demonstrated the structure planted in multiple rows, you may apply to the structure which staggers planting, such as the structure which varied the operation timing of the right and left seedling planting body 5, for example. In addition, when the operation timing of the right and left seedling planting bodies 5 is made different, the first and second seedling containers reach the same number of times at different timings at the respective drop supply positions 39 and 40 by the circular movement by the moving mechanism. It becomes the composition to do.

なお、上述の苗落下供給機構27は支持体42により落下供給位置39,40を設定する構成について説明したが、この構成に加えて、苗植付体5に設けた開放作動部材が苗植付体5の上方に位置する苗供給カップ25の底蓋25aが開くのを規制する規制手段を設け、苗植付体5が苗供給カップ25の直下まで上昇したときに該規制手段を規制解除動作させて苗を落下供給させる構成を設けてもよい。   In addition, although the above-mentioned seedling fall supply mechanism 27 demonstrated the structure which sets the fall supply positions 39 and 40 by the support body 42, in addition to this structure, the open | release operation member provided in the seedling planting body 5 is seedling planting. Restriction means for restricting the opening of the bottom lid 25a of the seedling supply cup 25 located above the body 5 is provided, and when the seedling planting body 5 is raised to just below the seedling supply cup 25, the restriction means is deregulated. You may provide the structure which makes it fall and supply a seedling.

本発明の苗移植機は、野菜苗に限らず、その他の苗を植え付ける苗移植機として利用可能性がある。また、乗用型の苗移植機について詳述したが、歩行型の苗移植機であってもよい。   The seedling transplanting machine of the present invention is not limited to vegetable seedlings, and may be used as a seedling transplanting machine for planting other seedlings. Moreover, although the riding-type seedling transplanter has been described in detail, a walking-type seedling transplanter may be used.

本発明の実施例の苗移植機の側面図である。It is a side view of the seedling transplanting machine of the Example of this invention. 図1の苗移植機の後鎮圧輪の図示を省略した苗移植機の平面図である。It is a top view of the seedling transplanter which abbreviate | omitted illustration of the back pressure ring of the seedling transplanter of FIG. 図1の苗移植機の苗供給装置の概略斜視図(図3(a))と側面図(一部縦断面を示す)(図3(b))である。FIG. 3 is a schematic perspective view (FIG. 3 (a)) and a side view (partially showing a longitudinal section) (FIG. 3 (b)) of the seedling supply device of the seedling transplanting machine of FIG. 図1の苗移植機の苗供給装置の他の実施例の側面図(一部縦断面を示す)である。It is a side view (a part longitudinal section is shown) of other examples of a seedling supply device of a seedling transplanter of Drawing 1. 図1の苗移植機の苗供給装置の他の実施例の側面図(一部縦断面を示す)(図5(a))とスプロケット部の斜視図(図5(b))である。They are the side view (a part longitudinal section is shown) of another example of the seedling supply device of the seedling transplanter of Drawing 1 (figure 5 (a)), and the perspective view (figure 5 (b)) of a sprocket part. 図1の苗移植機の苗供給装置の他の実施例の機体背面図(図6(a))と苗供給カップ部分の側面図(一部縦断面を示す)(図6(b))である。FIG. 6B is a rear view of the machine body (FIG. 6A) of another embodiment of the seedling supply device of the seedling transplanting machine of FIG. 1 and a side view of the seedling supply cup portion (partly showing a longitudinal section) (FIG. 6B). is there. 図1の苗移植機の苗供給装置の他の実施例の機体背面図(図7(a))と苗供給カップ部分の側面図(一部縦断面を示す)(図7(b))である。FIG. 7 is a rear view of the body (FIG. 7 (a)) of another embodiment of the seedling supply device of the seedling transplanting machine of FIG. 1 and a side view (partially showing a longitudinal section) of the seedling supply cup portion (FIG. 7 (b)). is there. 図1の苗移植機の支持体を示した平面図(図8(a)は狭い植付条間の場合、図8(b)は広い植付条間の場合を示す。)である。FIG. 8 is a plan view showing a support of the seedling transplanter of FIG. 1 (FIG. 8A shows a case between narrow planting strips, and FIG. 8B shows a case between wide planting strips). 図1の苗移植機の苗植付装置の斜視図である。It is a perspective view of the seedling planting apparatus of the seedling transplanting machine of FIG.

符号の説明Explanation of symbols

1 苗移植機 2 操縦ハンドル
3 エンジン 4 上下動機構
5 苗植付体 6 前輪
7 後輪 8 ミッションケース
9 チェーン伝動ケース 9a 回動支点
10 車軸 11 ローリングシリンダ
12 天秤杆 13 ロッド
14 昇降用油圧シリンダ 14a ピストンロッド
15 前鎮圧輪 16 アーム
17 前輪支持フレーム 18 アーム部分
19 車軸 20 機体フレーム
20a 回動支点 21 伝動軸
22 植付伝動ケース 23 苗植付装置
24 苗供給装置 25(25b,25c) 苗供給カップ
25a 底蓋 25a1,26b1 突起部
25a2 ヒンジ 25’ 延長スリーブ
25’a ガイド溝 25” 苗供給カップつば部
26 移動機構 27 苗落下供給機構(ターンテーブル)
28 連結体 29 スプロケット
29a 円弧状長孔 30 回動軸
31 支持フレーム 32 出力軸
33a ガイドレール 33b 支持部材
33c L字状のプレート 33d ガイド
33e コ字状プレート 34 苗置台
34a 側壁部 34b 平面部
34c 把手 34a1 長穴
35 スプロケット 35b 円板部
35a スプロケット歯 37 円弧状部分
38 直線状部分 39,40 落下供給位置
41 突起 42 支持体
43 第一支持部材 44 第二支持部材
45 第三支持部材 46,48 長孔
47,49 取付ボルト 50 開閉機構
51 苗ガイド 52,53 昇降リンク
54 駆動軸 55 駆動アーム
56 連動アーム 57 連結部材
58 回動支点軸 59 植付出力軸
60 右側開閉用アーム部 61 開閉用ケーブル
62 左側開閉用アーム部 63 回動支点軸
64 作動アーム 65 スプリング
66,67 連結軸 68 三角形状のプレート
69 円柱状のボス 69a グリスニップル
70 位置調節軸 70a ラック
71 ステッピングモータ 71a ピニオン
72 一回転検出スイッチ 73 鎮圧輪
74 レバー 75 アーム
76 左右支持軸 77 上下支持軸
78 ボンネット 79 座席
80 ステップ 81 支持フレーム
82 メインステップ 82a 立ち上がり部
83 サブステップ 84 乗車用主クラッチレバー
85 サイドクラッチペダル 86 畝終端センサ
87 主クラッチレバー 88 植付操作レバー
89 苗載台 90 移動リンク機構
91 操作盤 91a 基準位置設定スイッチ
91b ストローク量設定スイッチ
DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 Steering handle 3 Engine 4 Vertical movement mechanism 5 Seedling planting body 6 Front wheel 7 Rear wheel 8 Transmission case 9 Chain transmission case 9a Rotating fulcrum 10 Axle 11 Rolling cylinder 12 Balance rod 13 Rod 14 Lifting hydraulic cylinder 14a Piston rod 15 Front pressure reducing wheel 16 Arm 17 Front wheel support frame 18 Arm portion 19 Axle 20 Airframe frame 20a Rotating fulcrum 21 Transmission shaft 22 Planting transmission case 23 Seedling planting device 24 Seedling supply device 25 (25b, 25c) Seedling supply cup 25a Bottom cover 25a1, 26b1 Projection part 25a2 Hinge 25 'Extension sleeve 25'a Guide groove 25 "Seedling supply cup collar part 26 Moving mechanism 27 Seedling drop supply mechanism (turn table)
28 Connecting body 29 Sprocket 29a Arc-shaped long hole 30 Rotating shaft 31 Support frame 32 Output shaft 33a Guide rail 33b Support member 33c L-shaped plate 33d Guide 33e U-shaped plate 34 Seedling stand 34a Side wall portion 34b Flat surface portion 34c Handle 34a1 Long hole 35 Sprocket 35b Disk portion 35a Sprocket teeth 37 Arc-shaped portion 38 Linear portion 39, 40 Drop supply position 41 Projection 42 Support body 43 First support member 44 Second support member 45 Third support member 46, 48 Long Hole 47, 49 Mounting bolt 50 Opening / closing mechanism 51 Seedling guide 52, 53 Lifting link 54 Drive shaft 55 Drive arm 56 Interlocking arm 57 Connecting member 58 Rotating fulcrum shaft 59 Planting output shaft 60 Right opening / closing arm portion 61 Opening / closing cable 62 Left open / close arm part 63 Rotating fulcrum shaft 64 Operation Arm 65 Spring 66, 67 Connecting shaft 68 Triangular plate 69 Cylindrical boss 69a Grease nipple 70 Position adjusting shaft 70a Rack 71 Stepping motor 71a Pinion 72 Single rotation detection switch 73 Pressure reducing wheel 74 Lever 75 Arm 76 Left and right support shaft 77 Vertical Support shaft 78 Bonnet 79 Seat 80 Step 81 Support frame 82 Main step 82a Rising part 83 Substep 84 Riding main clutch lever 85 Side clutch pedal 86 畝 End sensor 87 Main clutch lever 88 Planting operation lever 89 Seedling stage 90 Moving link Mechanism 91 Operation panel 91a Reference position setting switch 91b Stroke amount setting switch

Claims (3)

苗を収容する複数の筒状体である苗収容体(25)と、
該複数の苗収容体(25)を所定の配列ピッチでループ状に配置し、順次周回移動させる移動機構(26)と、
該移動機構(26)により苗収容体(25)が所定の落下供給位置(39,40)に移動すると苗収容体(25)が収容する苗を落下させる苗落下供給機構(27)と、
所定の作動軌跡で上下動して前記落下供給位置(39,40)で苗収容体(25)から苗を受け取って植え付ける苗植付体(5)とを備え、
苗収容体(25)の浮き上がりを防止するためのつば部を、苗収容体(25)の外周に設け
苗収容体(25)を周回させるための駆動部材(35,35b)が、つば部に上側から当接することにより、苗収容体(25)の浮き上がりを防止する構成とした
ことを特徴とする苗移植機。
A seedling container (25) which is a plurality of cylindrical bodies for storing seedlings;
A plurality of seedling containers (25) arranged in a loop at a predetermined arrangement pitch, and a moving mechanism (26) that sequentially moves around,
A seedling drop supply mechanism (27) for dropping the seedling stored in the seedling container (25) when the seedling container (25) is moved to a predetermined drop supply position (39, 40) by the moving mechanism (26);
A seedling planting body (5) for moving up and down in a predetermined operation locus and receiving and planting seedlings from the seedling container (25) at the drop supply position (39, 40);
A collar portion for preventing the seedling container (25) from being lifted is provided on the outer periphery of the seedling container (25) .
The drive member (35, 35b) for circling the seedling container (25) is configured to prevent the seedling container (25) from being lifted by abutting the collar portion from above. Characteristic seedling transplanter.
苗を収容する複数の筒状体である苗収容体(25)と、
該複数の苗収容体(25)を所定の配列ピッチでループ状に配置し、順次周回移動させる移動機構(26)と、
該移動機構(26)により苗収容体(25)が所定の落下供給位置(39,40)に移動すると苗収容体(25)が収容する苗を落下させる苗落下供給機構(27)と、
所定の作動軌跡で上下動して前記落下供給位置(39,40)で苗収容体(25)から苗を受け取って植え付ける苗植付体(5)とを備え、
苗収容体(25)の上端の高さを変更可能な苗収容体高さ変更機構を設け、
平面視で苗収容体(25)の周回経路の内側には苗置台(34)を設け、
苗置台(34)の高さを変更可能な苗置台高さ変更機構(33c)を設け、
苗置台高さ変更機構(33c)による苗置台(34)の高さ変更に連動して、苗収容体高さ変更機構により苗収容体(25)の上端の高さが変更される構成とした
ことを特徴とする苗移植機。
A seedling container (25) which is a plurality of cylindrical bodies for storing seedlings;
A plurality of seedling containers (25) arranged in a loop at a predetermined arrangement pitch, and a moving mechanism (26) that sequentially moves around,
A seedling drop supply mechanism (27) for dropping the seedling stored in the seedling container (25) when the seedling container (25) is moved to a predetermined drop supply position (39, 40) by the moving mechanism (26);
A seedling planting body (5) for moving up and down in a predetermined operation locus and receiving and planting seedlings from the seedling container (25) at the drop supply position (39, 40);
A seedling container height changing mechanism capable of changing the height of the upper end of the seedling container (25) is provided,
A seedling table (34) is provided inside the circuit path of the seedling container (25) in plan view,
A seedling stand height changing mechanism (33c) capable of changing the height of the seedling stand (34) is provided,
In conjunction with the height change of the seedling table (34) by the seedling table height changing mechanism (33c), the height of the upper end of the seedling container (25) is changed by the seedling container height changing mechanism. seedling transplanting machine it said.
二つの孔を有する連結体(28)を設け、
前記二つの孔に隣接する苗収容体(25)を挿入して各々の苗収容体(25)を回動自在に連結体(28)に係合させることにより、複数の苗収容体(25)を所定の配列ピッチで連結する構成とし、
連結体(28)によりつば部を構成した
ことを特徴とする請求項1又は請求項2に記載の苗移植機。
A connecting body (28) having two holes is provided;
A plurality of seedling containers (25) are inserted by inserting seedling containers (25) adjacent to the two holes and rotatably engaging each seedling container (25) with the connecting body (28). Are connected at a predetermined arrangement pitch,
The seedling transplanter according to claim 1 or 2, wherein a collar portion is constituted by the coupling body (28).
JP2008161220A 2008-06-20 2008-06-20 Seedling transplanter Expired - Fee Related JP5359049B2 (en)

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JP5417789B2 (en) * 2008-09-29 2014-02-19 井関農機株式会社 Seedling transplanter
JP6980606B2 (en) * 2018-06-26 2021-12-15 株式会社クボタ Porting machine
JP6891912B2 (en) * 2019-03-20 2021-06-18 井関農機株式会社 Transplant machine

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JP2004141046A (en) * 2002-10-23 2004-05-20 Seirei Ind Co Ltd Vegetable transplanter and method for transplanting seedling with vegetable transplanter
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Publication number Priority date Publication date Assignee Title
JP7349685B2 (en) 2018-10-31 2023-09-25 学校法人明治大学 Fish meat oxidation suppression method, preservation method, transportation method, discoloration suppression method, fish odor suppression method, and fish meat

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