JP5343312B2

JP5343312B2 - Seedling winding assist device

Info

Publication number: JP5343312B2
Application number: JP2006295860A
Authority: JP
Inventors: 木下　　栄一郎; 実松岡; 竹本　　雅浩; 大久保　　嘉彦; 幸太東; 康弘宮内; 康仁中西; 享福井; 満夫根田
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2006-10-31
Filing date: 2006-10-31
Publication date: 2013-11-13
Anticipated expiration: 2026-10-31
Also published as: JP2008109902A

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling-winding assistant device free from the problem of the necessity to wind up a mat seedling in the form of a roll immediately after lodging the leaf of the seedling in order to wind the mat while keeping the lodged state of the leaf because, although a roll seedling having a small diameter can be formed by lodging the leaf of the mat seedling with a lodging means, the lodged leaf of the mat seedling tends to return to the upright state. <P>SOLUTION: The seedling-winding assistant device is provided with a traveling means 5 for traveling on a mat seedling 3, a roll seedling guiding means to guide the roll seedling formed by winding the mat seedling 3 in the form of a roll, and a lodging means 13 to lodge the leaf of the mat seedling before winding the mat by acting on the leaf before the roll seedling guiding means. The roll seedling guiding means is provided with a roll seedling guiding side plate 29 to guide the side face of the roll seedling and a roll seedling guiding front plate 19 to guide the front face of the roll seedling. The roll seedling guiding front face 19 is positioned slantly above and behind the lodging means 13 and has a slope inclined downward to the back. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、マット苗をロール状に巻き取る際に使用できる苗巻取補助装置の技術分野に属する。 The present invention belongs to the technical field of a seedling winding assist device that can be used when winding a mat seedling into a roll.

長いマット苗をロール状に巻き取ってできるロール苗をロール苗供給部へ装填し、該ロール苗供給部に装填されたロール苗の外周側から順次マット苗を繰り出して該マット苗を植付装置側へ移送し、植付装置がマット苗から一株分の苗を取って圃場に植え付ける構成の苗移植機がある。この苗移植機により、前記ロール苗供給部へ長いマット苗からなるロール苗を装填することができるので、多量の苗を一度に装填することができるため、苗補給回数を低減でき、ひいては苗補給作業の省力化が図れると共に、植付作業能率の向上が図れる。この苗移植機においては、植付装置側へ移送されるマット苗の葉部を植付装置とは反対側に向けて植付装置が葉部を傷付けずに一株分の苗を良好に取り出せるようにする必要がある。そのため、マット苗上を走行させるための走行手段と、マット苗をロール状に巻き取ってできるロール苗を案内するロール苗案内手段と、該ロール苗案内手段の前側で巻き取る前のマット苗の葉部に作用して該葉部を巻取側に倒伏させるベルトで構成される倒伏手段とを備える苗巻取補助装置において、前記ロール苗案内手段はロール苗の側面を案内するロール苗案内側板を備える苗巻取補助装置がある（特許文献１参照）。
特開２００４− ９７１２４号公報 Roll seedlings formed by winding long mat seedlings into a roll shape are loaded into the roll seedling supply unit, and the mat seedlings are sequentially fed out from the outer peripheral side of the roll seedlings loaded in the roll seedling supply unit. There is a seedling transplanter that is transferred to the side and the planting device takes one seedling from the mat seedling and plantes it in the field. With this seedling transplanter, roll seedlings made of long mat seedlings can be loaded into the roll seedling supply unit, so a large amount of seedlings can be loaded at one time, so the number of seedlings can be reduced, and as a result The labor can be saved and the planting efficiency can be improved. In this seedling transplanting machine, the seedling of the mat seedling transferred to the planting device side is directed to the opposite side of the planting device, and the planting device can take out the seedling of one stock without damaging the leaf portion. It is necessary to do so. Therefore, a traveling means for traveling on the mat seedling, a roll seedling guiding means for guiding the roll seedling that can be rolled up from the mat seedling, and a mat seedling before winding on the front side of the roll seedling guiding means In a seedling winding assisting device comprising a lodging means comprising a belt that acts on a leaf portion and causes the leaf portion to fall on the winding side, the roll seedling guiding means is a roll seedling guiding side plate that guides the side surface of the roll seedling There is a seedling winding assist device (see Patent Document 1).
Japanese Patent Laid-Open No. 2004-97124

上記苗巻取補助装置において、倒伏手段によりマット苗の葉部を倒伏させることで径の小さいロール苗を作ることができるが、倒伏したマット苗の葉部は直立状態へ復元しようとするため、葉部を倒伏させた状態のままでロール状に巻き取るには、葉部を倒伏させた直後に苗をロール状に巻き取る必要がある。
上記の巻取補助装置の倒伏手段は一定の位置で苗に接触して倒伏させる構成であるため、苗の強度が低いと苗が折れたり傷付いたりして、苗の植付作業が適切に行われなくなる問題がある。
一方、苗の強度が強いと十分な倒伏作用が与えられず、マット苗の巻取作業中に苗が起き上がり、ロール苗の径が大きくなり過ぎてしまう問題がある。
また、倒伏手段が苗に接触する際、マット苗の左右外端部の苗が左右外側に向かって倒伏し、ロール苗の外端部から苗がはみ出してしまい、ロール苗が植付作業に適さない形状になる問題がある。
さらに、苗の上下長さを揃えていないため、十分な倒伏作用が与えられなかった苗が起き上がり、ロール苗の径が大きくなり過ぎてしまう問題がある。 In the above seedling winding assist device, roll seedlings with a small diameter can be made by inclining the leaves of the mat seedlings by means of lodging, but the leaves of the matting seedlings that are lying down tend to be restored to an upright state, In order to wind up the leaf part in a rolled state, the seedling needs to be wound up in a roll form immediately after the leaf part is fallen down.
The above-described winding means of the winding assist device is configured to contact the seedling at a certain position and fall down, so if the strength of the seedling is low, the seedling will be broken or damaged, so that the seedling is properly planted. There is a problem that will not be done.
On the other hand, when the strength of the seedling is strong, a sufficient lodging action is not given, and there is a problem that the seedling rises during the winding operation of the mat seedling and the diameter of the roll seedling becomes too large.
In addition, when the lodging means comes into contact with the seedling, the seedlings at the left and right outer ends of the mat seedling lie down toward the left and right outside, and the seedlings protrude from the outer end of the roll seedling, making the roll seedling suitable for planting work. There is a problem that there is no shape.
Furthermore, since the vertical lengths of the seedlings are not uniform, there is a problem that seedlings that have not been provided with a sufficient lodging action rise and the diameter of the roll seedlings becomes too large.

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の発明は、マット苗（３）をロール状に巻き取る際にその巻き取りに合わせてマット苗（３）上を走行させるための走行手段（５）を設け、巻き取る前のマット苗（３）の葉部（ｙ）に作用して該葉部（ｙ）を倒伏させる苗倒伏用ベルト（１３）を設け、該苗倒伏用ベルト（１３）を機体前側の固定ローラ（１６）と機体後側の移動ローラ（１４）に斜め後下がり姿勢となるように巻回し、該苗倒伏用ベルト（１３）の左右両側部の表面には該苗倒伏用ベルト（１３）の下面側で左右方向外側部が後側に位置するように該苗倒伏用ベルト（１３）の周回方向に対して斜めの突条（１３ａ）を設け、機体後部に左右方向の回動軸（１１）の周りに上下回動するアーム（１２）を設け、該アーム（１２）の上部側にアーム（１２）を上下回動操作するハンドル（２４）を設け、該アーム（１２）の下端部に前記苗倒伏用ベルト（１３）を巻回する移動ローラ（１４）を設け、機体前端部の左右両側にマット苗（３）の左右外側部の葉部（ｙ）を左右方向内側へ収束させて案内する収束案内板（２７）を各々設け、該収束案内板（２７）で左右方向内側に案内されたマット苗（３）の左右外側部の葉部（ｙ）を更に左右内側方向に案内する苗寄せ案内杆（２８）を左右両側に各々設け、機体後側の左右両側にロール状に巻き取られるロール苗の左右端部を案内するロール苗案内板（２９）を各々設け、機体の前端下部にマット苗（３）の葉部（ｙ）を切り揃える切断刃（４０）を設けた苗巻取補助装置とした。 In order to solve the above problems, the present invention has taken the following technical means.
That is, when the mat seedling (3) is wound in a roll shape, the invention of claim 1 is provided with traveling means (5) for traveling on the mat seedling (3) in accordance with the winding, before the winding. Provided with a seedling lodging belt (13) that acts on the leaf portion (y) of the mat seedling (3) to lay down the leaf portion (y), and the seedling lodging belt (13) is fixed to a fixed roller ( 16) and a moving roller (14) on the rear side of the machine body so as to be inclined obliquely downward, and on the surfaces of the left and right sides of the seedling fall belt (13), the underside of the seedling fall belt (13) A slanted ridge (13a) is provided with respect to the circumferential direction of the seedling lodging belt (13) so that the laterally outer side is located on the rear side, and a lateral pivot shaft (11) is provided at the rear of the machine body. The arm (12) which rotates up and down is provided around the arm (12), and the arm (1 ) And a moving roller (14) around which the seedling fall belt (13) is wound at the lower end of the arm (12), and on both the left and right sides of the front end of the machine body. Convergence guide plates (27) for guiding the leaves (y) of the left and right outer portions of the mat seedling (3) to converge in the left-right direction are provided, respectively, and guided by the convergence guide plate (27) in the left-right direction. The seedling gathering guide rods (28) for guiding the leaves (y) of the left and right outer portions of the mat seedling (3) further in the left and right inner directions are provided on both the left and right sides, respectively, and wound on the left and right sides on the rear side of the machine body in a roll shape. A roll seedling guide plate (29) for guiding the left and right ends of the roll seedlings is provided, and a seedling winder provided with a cutting blade (40) for trimming the leaves (y) of the mat seedling (3) at the lower front end of the machine body An auxiliary device was used.

従って、この苗巻取補助装置は、ハンドル（２４）を操作すると上下回動するアーム（１２）の下部側に移動ローラ（１４）を設け、この移動ローラ（１４）と固定ローラ（１６）に苗倒伏用ベルト（１３）を巻回したことにより、ハンドル（２４）を操作してアーム（１２）を上下回動させると苗倒伏用ベルト（１３）を上下回動させることができるので、苗倒伏用ベルト（１３）の倒伏作用位置をマット苗（３）の葉部（ｙ）の強度に対応した位置に変更することができる。
また、機体前端部の左右両側に収束案内板（２７）を各々設け、この収束案内板（２７）の後側で且つ左右両側に苗寄せ案内杆（２８）を各々設けると共に、苗倒伏用ベルト（１３）の左右両側部の表面に苗倒伏用ベルト（１３）の下面側で左右方向外側部が後側に位置するように苗倒伏用ベルト（１３）の周回方向に対して斜めの突条（１３ａ）を設けたことにより、この収束案内板（２７）と苗寄せ案内杆（２８）と突条（１３ａ）に接触するマット苗（３）の左右外端部の茎葉（ｙ）を左右方向内側に案内ことができる。
そして、機体後側の左右両側にロール苗の左右端部を案内するロール苗案内板（２９）を各々設けたことにより、ロール苗案内側板（２９）の左右間でロール苗を回転させながら巻き取ることができる。
さらに、機体の前端下部にマット苗（３）の葉部（ｙ）を切り揃える切断刃（４０）を設けたことにより、葉部（ｙ）の上下長さを略均一に揃えることができる。 Therefore, this seedling winding assist device is provided with a moving roller (14) on the lower side of the arm (12) that rotates up and down when the handle (24) is operated, and the moving roller (14) and the fixed roller (16) are provided. Since the seedling lodging belt (13) is wound, when the arm (12) is rotated up and down by operating the handle (24), the seedling lodging belt (13) can be rotated up and down. The lodging position of the lodging belt (13) can be changed to a position corresponding to the strength of the leaf (y) of the mat seedling (3).
Convergence guide plates (27) are provided on the left and right sides of the front end of the machine body, and seedling gathering guide rods (28) are provided on the rear side and the left and right sides of the convergence guide plate (27), respectively. A slanted ridge with respect to the circumferential direction of the seedling fall belt (13) so that the left and right outer parts are located on the rear side of the lower surface side of the seedling fall belt (13) on the surfaces of the left and right sides of (13) By providing (13a), the leaves and leaves (y) at the left and right outer ends of the mat seedling (3) contacting the convergence guide plate (27), the seedling gathering guide rod (28) and the ridge (13a) are left and right. Can be guided inward.
And by providing the roll seedling guide plates (29) for guiding the left and right ends of the roll seedlings on the left and right sides on the rear side of the machine body, the roll seedlings are wound while rotating between the left and right of the roll seedling guide side plates (29). Can be taken.
Furthermore, by providing the cutting blade (40) for cutting and aligning the leaf part (y) of the mat seedling (3) at the lower front end of the machine body, the vertical length of the leaf part (y) can be made substantially uniform.

請求項１記載の発明により、ハンドル（２４）を操作して苗倒伏用ベルト（１３）の倒伏作用位置を変更し、マット苗（３）の葉部（ｙ）の強度が弱いときは倒伏作用位置を上昇させることにより、葉部（ｙ）が折れることや傷付くことを防止できるので、苗移植機による苗の植付作業が適正に行われる。
また、マット苗（３）の葉部（ｙ）の強度が強いときは、倒伏作用位置を下降させることにより、葉部（ｙ）を確実に倒伏させることができるので、ロール苗の径が大きくなり過ぎることが防止される。
そして、収束案内板（２７）と苗寄せ案内杆（２８）と凸条（１３ａ）でマット苗（３）の左右外端部の葉部（ｙ）を左右方向内側に案内することにより、苗倒伏用ベルト（１３）の倒伏作用によって葉部（ｙ）が左右外側にはみ出すことを防止できるので、ロール苗が植付作業に適した形に形成される。
さらに、ロール苗案内側板（２９）の左右間でロール苗を回転させながら巻き取ることができるので、ロール苗がいっそう植付作業に適した形に形成される。
また、切断刃（４０）で葉部（ｙ）の上下長さを略均一に揃えることにより、葉部（ｙ）を均等に倒伏させることができるので、ロール苗の径が大きくなり過ぎることが防止される。
そして、マット苗（３）の巻取作業と同時に葉部（ｙ）を切断することができるので、別途葉部（ｙ）の切断作業を行う必要が無くなり、作業能率が向上する。 According to the first aspect of the present invention, when the handle (24) is operated to change the fall action position of the seedling fall belt (13), when the strength of the leaf (y) of the mat seedling (3) is weak, the fall action By raising the position, the leaf (y) can be prevented from being broken or damaged, so that the seedling transplanting operation by the seedling transplanter is performed appropriately.
Moreover, when the strength of the leaf part (y) of the mat seedling (3) is strong, the diameter of the roll seedling can be increased because the leaf part (y) can be reliably lowered by lowering the lodging position. It is prevented from becoming too much.
Then, the leaves (y) of the left and right outer ends of the mat seedling (3) are guided inward in the left-right direction by the convergence guide plate (27), the seedling gathering guide rod (28), and the ridges (13a). Since the leaf portion (y) can be prevented from protruding to the left and right outside by the lodging action of the lodging belt (13), the roll seedling is formed in a shape suitable for planting work.
Furthermore, since the roll seedling can be wound while rotating between the left and right sides of the roll seedling guide side plate (29), the roll seedling is formed in a shape more suitable for planting work.
Moreover, since the leaf part (y) can be fallen down uniformly by aligning the vertical length of the leaf part (y) with the cutting blade (40), the diameter of the roll seedling may become too large. Is prevented.
Since the leaf portion (y) can be cut simultaneously with the winding operation of the mat seedling (3), there is no need to separately cut the leaf portion (y), and the work efficiency is improved.

この発明の実施の一形態を以下に説明する。
苗巻取補助装置１は、一定幅（約３０ｃｍ）で縦方向に長い形態の育苗トレイ２内で育苗された長さ約６ｍの長いマット苗３上を移動させながら、このマット苗３の葉を巻取側となる後側へ倒伏させるものであり、苗巻取補助装置１の後側で育苗トレイ２上のマット苗３をパイプ状の巻取軸４の外周に巻き付けて巻き取るようになっている。巻取軸４を人手で育苗トレイ２に沿って回動させながら、該巻取軸４にマット苗３を巻き付ける。苗巻取補助装置１の前後には走行手段となる各々左右一対の走行車輪５を設け、原動機となる駆動モータ６からの動力が左右の走行伝動用チエーン７を介して左右各々の前後の走行車輪５に伝達され、計４輪の走行車輪５の駆動により育苗トレイ２の左右両側部の壁部２ａをレールとして走行車輪５が案内されながら苗巻取補助装置１が走行する。前記駆動モータ６及び該駆動モータ６の電源となるバッテリー８は、苗巻取補助装置１の上部に配置されている。また、苗巻取補助装置１の上部の前後には、該苗巻取補助装置１を持ち運びするための把持部９を設けている。苗巻取補助装置１の上部上面側には速度調節操作具１０を設けており、この速度調節操作具１０の操作で駆動モータ６の駆動速度を変更して走行速度を調節できる構成となっている。尚、前記速度調節操作具１０は、駆動モータ６の駆動を入切する電源スイッチを兼ねている。 An embodiment of the present invention will be described below.
The seedling winding assist device 1 moves the leaves of the mat seedling 3 while moving it on the mat mat 3 having a length of about 6 m, which is grown in the seedling tray 2 having a certain width (about 30 cm) and being long in the vertical direction. And the mat seedling 3 on the seedling raising tray 2 is wound around the outer periphery of the pipe-shaped winding shaft 4 on the rear side of the seedling winding assisting device 1 and wound up. It has become. The mat seedling 3 is wound around the winding shaft 4 while manually rotating the winding shaft 4 along the seedling tray 2. A pair of left and right traveling wheels 5 serving as traveling means are provided before and after the seedling winding assist device 1, and the power from the drive motor 6 serving as a prime mover travels on the left and right front and rear via the left and right traveling transmission chain 7. The seedling take-up assisting device 1 travels while being guided to the wheels 5 and guided by the driving of the total four traveling wheels 5 with the wall portions 2a on both the left and right sides of the seedling tray 2 as rails. The drive motor 6 and a battery 8 serving as a power source for the drive motor 6 are arranged on the upper part of the seedling winding assist device 1. In addition, before and after the upper part of the seedling winding assist device 1, a grip portion 9 for carrying the seedling winding assist device 1 is provided. A speed adjustment operation tool 10 is provided on the upper upper surface side of the seedling winding assist device 1, and the driving speed of the drive motor 6 can be changed by operating the speed adjustment operation tool 10 to adjust the traveling speed. Yes. The speed adjusting operation tool 10 also serves as a power switch for turning on / off the driving motor 6.

苗巻取補助装置１の後部には、左右方向の回動軸１１周りに上下回動可能のアーム１２を左右各々設けている。尚、前記回動軸１１は、斜め後下がりに延びる前記アーム１２の略中央位置に配置されている。左右のアーム１２の間には、平ベルトで構成される苗倒伏用ベルト１３を巻掛けるための移動ローラ１４を前記アーム１２の下側の先端部に軸装している。前記苗倒伏用ベルト１３は、苗巻取補助装置１の本体カバー１５の所定位置に軸支される前側の固定ローラ１６と後側の前記移動ローラ１４との間に斜め後下がり姿勢で巻掛けられ、駆動モータ６からの動力が右側に配置した苗倒伏伝動用チエーン１７を介して前記固定ローラ１６へ伝達されて駆動する。従って、この苗倒伏用ベルト１３が、巻き取る直前のマット苗の葉部に作用して該葉部を巻取側に倒伏させる倒伏手段となる。移動ローラ１４の上方には左右のアーム１２を連結する連結ロッド１８を設けている。アーム１２の上側の先端部には左右のアーム１２を連結する連結軸２０を設け、該連結軸２０を苗巻取補助装置１の本体カバー１５に形成した左右の円弧状の長穴２１に嵌合させている。この連結軸２０の中間部に挿通される調節ロッド２２を設け、該調節ロッド２２の肩部で連結軸２０の後側への移動が規制されて左右のアーム１２の下部が前側下方へ回動するのを規制している。尚、苗倒伏用ベルト１３がマット苗から受ける抵抗により、調節ロッド２２に沿って連結軸２０が前側へ移動して左右のアーム１２の下部が上側へ回動し得る構成となっており、苗倒伏用ベルト１３に過大な負荷がかかるような状態でマット苗を損傷してしまうようなことを防止している。また、前記調節ロッド２２の中途部を苗巻取補助装置１の後部に設けたブラケット２３に螺合させており、この調節ロッド２２と一体回転するハンドル２４を回動操作することによって、調節ロッド２３が前後に移動し左右のアーム１２を上下に回動調節して苗倒伏用ベルト１３の下端の位置を調節することができる。従って、前記調節ロッド２２及びハンドル２４は、苗倒伏用ベルト１３がマット苗の葉部に作用する上下位置を変更する位置変更手段となる。苗倒伏用ベルト１３は、下面側が斜め後下側へ移行し、移動ローラ１４で上側へ転じて移行するように回転駆動する。また、この苗倒伏用ベルト１３の周回速度は苗巻取補助装置１の走行速度よりも速くなるように設定されている。この苗倒伏用ベルト１３の駆動により、マット苗の苗床に対して葉部ｙが後側へ傾斜するように押し倒された状態になり、この状態で巻取軸４にマット苗を巻きつけるようになっている。苗倒伏用ベルト１３の内周面で左右両側端部には突条を一体形成し、固定ローラ１６と移動ローラ１４との左右両側端部には前記突条を嵌合させる溝２５を形成する。また、固定ローラ１６における溝２５の左右両側部には歯車状の凹凸条面からなる歯車面２６を形成して、苗倒伏用ベルト１３をスリップなく駆動回転させる構成となっている。 At the rear part of the seedling winding assist device 1, left and right arms 12 that can be turned up and down are provided around a turning shaft 11 in the left and right direction. The rotating shaft 11 is disposed at a substantially central position of the arm 12 extending obliquely downward. Between the left and right arms 12, a moving roller 14 for winding a seedling fall belt 13 constituted by a flat belt is mounted on the lower end of the arm 12. The seedling fall belt 13 is wound in a slanting back-down posture between the front fixed roller 16 and the rear moving roller 14 that are pivotally supported at a predetermined position of the body cover 15 of the seedling winding assist device 1. Then, the power from the drive motor 6 is transmitted to the fixed roller 16 through the seedling lodging transmission chain 17 arranged on the right side to drive. Therefore, the seedling lodging belt 13 acts as a lodging means that acts on the leaf portion of the mat seedling just before winding to fall the leaf portion to the winding side. A connecting rod 18 for connecting the left and right arms 12 is provided above the moving roller 14. A connecting shaft 20 that connects the left and right arms 12 is provided at the upper end of the arm 12, and the connecting shaft 20 is fitted into left and right arc-shaped elongated holes 21 formed in the body cover 15 of the seedling winding assist device 1. It is combined. An adjustment rod 22 inserted through the intermediate portion of the connecting shaft 20 is provided, and the shoulder of the adjusting rod 22 restricts the movement of the connecting shaft 20 to the rear side, and the lower portions of the left and right arms 12 rotate forward and downward. To regulate. In addition, due to the resistance that the seedling fall belt 13 receives from the mat seedling, the connecting shaft 20 moves forward along the adjustment rod 22 so that the lower portions of the left and right arms 12 can rotate upward. This prevents the mat seedling from being damaged in the state where an excessive load is applied to the lodging belt 13. Further, the midway portion of the adjusting rod 22 is screwed into a bracket 23 provided at the rear portion of the seedling winding assist device 1, and the adjusting rod 22 is rotated to rotate the adjusting rod 22. 23 moves back and forth, and the left and right arms 12 can be rotated up and down to adjust the position of the lower end of the seedling lodging belt 13. Therefore, the adjusting rod 22 and the handle 24 serve as position changing means for changing the vertical position at which the seedling lodging belt 13 acts on the leaf portion of the mat seedling. The seedling fall belt 13 is rotationally driven so that the lower surface side is shifted obliquely to the lower rear side and turned upward by the moving roller 14. Further, the rotation speed of the seedling lodging belt 13 is set to be higher than the traveling speed of the seedling winding assist device 1. By driving the seedling lodging belt 13, the leaf portion y is pushed down with respect to the mat seedling bed so that the mat seedling is wound around the winding shaft 4. It has become. On the inner peripheral surface of the seedling fall belt 13, ridges are integrally formed on both left and right ends, and grooves 25 for fitting the ridges are formed on both left and right ends of the fixed roller 16 and the moving roller 14. . In addition, gear surfaces 26 formed of gear-shaped irregularities are formed on the left and right sides of the groove 25 in the fixed roller 16 so that the seedling fall belt 13 is driven and rotated without slipping.

苗巻取補助装置１の本体カバー１５の下部は透明に構成され、走行車輪５を側方から視認できるようにして、育苗トレイ２の壁部２ａ上へ走行車輪５をセットし易くしている。また、本体カバー１５の前端の左右両端部には、マット苗の左右外端部の葉部ｙを左右方向内側へ収束させて案内する収束案内板２７を備えている。本体カバー１５の前側下端部には外力で変形可能な弾性体からなる苗寄せ案内杆２８を左右各々取り付けており、この苗寄せ案内杆２８は、後側へいくほど左右方向内側で且つ下側に位置するよう傾斜した構成となっており、後端を苗倒伏用ベルト１３の下面に接近させている。苗巻取補助装置１の前進走行により、左右の収束案内板２７で左右内側へ案内されたマット苗の左右外端部の葉部ｙを更に苗寄せ案内杆２８の変形作用によって損傷しないように左右内側へ押し寄せ、葉部ｙが左右外側へはみ出ないようにして苗倒伏用ベルト１３の作用位置へ案内する。また、図５に示すように、本体カバー１５の左右の下端縁１５ａは、左右方向内側に屈曲しており、マット苗の左右外端部の葉部ｙが左右外側の育苗トレイ２の壁部２ａ上に位置しないように案内し、葉部ｙが前記壁部２ａと走行車輪５との間に挟まれるようなことを防止している。また、苗倒伏用ベルト１３の左右両側部の表面には該ベルト１３の下面側で左右方向外側が後側に位置するように該ベルト１３の周回方向に対して斜めの突条１３ａを設けており、該突条１３ａにより苗倒伏用ベルト１３の駆動でマット苗の左右外端部の葉部ｙが左右方向内側へ向くように修正される。従って、前記収束案内板２７、苗寄せ案内杆２８、本体カバー１５の下端縁１５ａ及び突条１３ａ等が、巻き取る前のマット苗の巻取方向と交差する方向における外端部の葉部を内側に案内する案内手段となる。 The lower part of the body cover 15 of the seedling winding assist device 1 is configured to be transparent so that the traveling wheels 5 can be seen from the side so that the traveling wheels 5 can be easily set on the wall 2a of the seedling tray 2. . Further, at both the left and right ends of the front end of the main body cover 15, a convergence guide plate 27 is provided for guiding the leaf portion y of the left and right outer end portions of the mat seedling by converging inward in the left and right direction. The left and right seedling guide rods 28 made of an elastic body that can be deformed by an external force are respectively attached to the front lower end of the main body cover 15. The rear end is made to approach the lower surface of the seedling lodging belt 13. As the seedling winding assist device 1 travels forward, the leaf portion y of the left and right outer ends of the mat seedling guided to the left and right by the left and right convergence guide plates 27 is not further damaged by the deformation action of the seedling gathering guide rod 28. The leaves are pushed inward and guided to the working position of the seedling lodging belt 13 so that the leaf portion y does not protrude outwardly from the left and right. Further, as shown in FIG. 5, the left and right lower edges 15a of the body cover 15 are bent inward in the left-right direction, and the leaf portion y of the left and right outer ends of the mat seedling is the wall portion of the seedling tray 2 on the left and right outer sides. The leaf portion y is prevented from being sandwiched between the wall portion 2a and the traveling wheel 5 by being guided so as not to be positioned on 2a. In addition, on the surfaces of the left and right side portions of the seedling lodging belt 13, ridges 13a oblique to the circumferential direction of the belt 13 are provided so that the outer side in the left and right direction is positioned on the rear side of the lower surface of the belt 13. Thus, the protrusion 13a is corrected so that the leaf portion y of the left and right outer ends of the mat seedling faces inward in the left-right direction by driving the seedling lodging belt 13. Accordingly, the convergence guide plate 27, the seedling gathering guide rod 28, the lower end edge 15a of the main body cover 15, the ridges 13a, and the like are arranged on the leaf portion of the outer end in the direction intersecting the winding direction of the mat seedling before winding. It becomes a guide means to guide inside.

本体カバー１５から後側に左右のロール苗案内側板２９を突出させて設け、この左右のロール苗案内側板２９の間に形成されるロール苗が位置するようにし、巻取軸４及びロール苗を案内する。ロール苗案内側板２９の上端縁部２９ａ及び下端縁部２９ｂは、左右方向外側に屈曲して設けられている。これにより、左右のロール苗案内側板２９の間でロール苗を回転させながら巻取作業を行う際、ロール苗の左右端部がロール苗案内側板２９の上端縁部２９ａ及び下端縁部２９ｂにひっかからないようにでき、ロール苗をスムーズに回転させることができる。また、ロール苗案内側板２９の左右方向内側面には左右方向内側に突出するロール苗位置指標３０を設けており、ロール苗の外径の変化に拘らずロール苗の前端外周面が前記ロール苗位置指標３０の位置となるように巻取作業を行うことにより、苗倒伏用ベルト１３とロール苗の前端との位置関係を一定に保って苗倒伏用ベルト１３で葉部が倒伏した直後の苗を巻き取ることができる。従って、苗倒伏用ベルト１３で葉部を倒伏させた後マット苗を巻き取るまでの間に葉部が復元してマット苗を良好に巻き取れなくなるようなことを防止できる。尚、ロール苗位置指標３０は、上下鉛直方向に長く構成され、ロール苗の外径の変化に伴うロール苗の上下位置に拘らずロール苗の前端を合わせやすく構成している。尚、ロール苗位置指標３０を突条物で構成したが、穴や単なる印等、指標となるものであればよい。 The left and right roll seedling guide side plates 29 are provided so as to protrude rearward from the main body cover 15 so that the roll seedlings formed between the left and right roll seedling guide side plates 29 are positioned, and the winding shaft 4 and the roll seedlings are invite. An upper end edge 29a and a lower end edge 29b of the roll seedling guide side plate 29 are bent outward in the left-right direction. Accordingly, when the winding seedling is rotated while rotating the roll seedling between the left and right roll seedling guide side plates 29, the left and right end portions of the roll seedling are caught from the upper end edge portion 29a and the lower end edge portion 29b of the roll seedling guide side plate 29. The roll seedling can be smoothly rotated. In addition, a roll seedling position index 30 that protrudes inward in the left-right direction is provided on the inner surface of the roll seedling guide side plate 29 in the left-right direction, and the front end outer peripheral surface of the roll seedling is the roll seedling regardless of changes in the outer diameter of the roll seedling. The seedling immediately after the leaves fall on the seedling lodging belt 13 while maintaining the positional relationship between the seedling lodging belt 13 and the front end of the roll seedling by performing the winding operation so as to be the position of the position index 30 Can be wound up. Therefore, it is possible to prevent the leaf portion from being restored and the mat seedling from being unwound well before the mat seedling is wound after the leaf portion is fallen by the seedling lodging belt 13. In addition, the roll seedling position index 30 is configured to be long in the vertical direction, and easily configures the front end of the roll seedling regardless of the vertical position of the roll seedling according to the change in the outer diameter of the roll seedling. In addition, although the roll seedling position index 30 is composed of a protrusion, any material that can serve as an index, such as a hole or a simple mark, may be used.

また、左右のアーム１２を連結する連結ロッド１８の後側に、ロール苗の前面に接触してロール苗を案内するロール苗案内前板１９を取り付けて設けている。該ロール苗案内前板１９は、苗倒伏用ベルト１３の斜め後上側に位置し、苗倒伏用ベルト１３と同じ傾斜方向となる後下がりに傾斜した傾斜面を備えている。尚、ロール苗案内前板１９の下端は、前記傾斜面に対して下側へ屈曲した構成となっている。ロール苗案内前板１９は、苗倒伏用ベルト１３の後端より前側に配置されているが、側面視で前記傾斜面の延長線が苗倒伏用ベルト１３より上側且つ後側に位置するよう構成されている。従って、仮に後側で形成されるロール苗が苗巻取補助装置１側（前側）に近づき過ぎても、ロール苗の外周面が前記ロール苗案内前板１９に接触してロール苗が苗倒伏用ベルト１３やその周辺の構造物に干渉して巻き込まれないようにしている。また、ロール苗案内前板１９の傾斜面の延長線が苗倒伏用ベルト１３の下端の位置を調節するためのハンドル２４より後側に位置しているので、ロール苗の外周面が前記ハンドル２４に接触してロール苗がハンドル２４に干渉しないようにしている。尚、ロール苗案内前板１９は前記ハンドル２４の操作により左右のアーム１２と一体で回動するため、左右のアーム１２の回動位置に拘らず、ロール苗案内前板１９の傾斜面の延長線がハンドル２４より後側に位置する構成としている。 In addition, a roll seedling guide front plate 19 that contacts the front surface of the roll seedling and guides the roll seedling is provided on the rear side of the connecting rod 18 that connects the left and right arms 12. The roll seedling guiding front plate 19 is provided on an obliquely rear upper side of the seedling lodging belt 13, and has an inclined surface that is inclined rearward in the same inclination direction as the seedling lodging belt 13. The lower end of the roll seedling guiding front plate 19 is bent downward with respect to the inclined surface. The roll seedling guide front plate 19 is arranged on the front side from the rear end of the seedling lodging belt 13, and the extended line of the inclined surface is located above and behind the seedling lodging belt 13 in a side view. Has been. Therefore, even if the roll seedling formed on the rear side gets too close to the seedling winding assist device 1 side (front side), the outer peripheral surface of the roll seedling comes into contact with the roll seedling guide front plate 19 so that the roll seedling falls down. The belt 13 is prevented from interfering with the belt 13 and surrounding structures. In addition, since the extended line of the inclined surface of the roll seedling guide front plate 19 is located behind the handle 24 for adjusting the position of the lower end of the seedling lodging belt 13, the outer peripheral surface of the roll seedling is the handle 24. So that the roll seedling does not interfere with the handle 24. Since the roll seedling guide front plate 19 is rotated integrally with the left and right arms 12 by the operation of the handle 24, the inclined surface of the roll seedling guide front plate 19 is extended regardless of the rotational position of the left and right arms 12. The line is positioned behind the handle 24.

よって、この苗巻取補助装置１によると、ハンドル２４の操作により苗倒伏用ベルト１３の下端位置を変えることによりマット苗の葉部の倒伏作用状態を所望に変更して調節できるので、苗の葉の強度が小さい場合は、苗倒伏用ベルト１３の下端位置を上昇させることにより倒伏作用位置を上昇させ、葉が折れたりして損傷するようなことを防止できる。逆に、苗の葉の強度が大きく葉が倒伏しにくい場合は、苗倒伏用ベルト１３の下端位置を下降させることにより倒伏作用位置を下降させ、十分な倒伏作用を得ることができる。従って、苗の条件に応じて倒伏作用位置を変更することにより、苗を傷めずに且つ所望の外径で適正にロール苗を形成することができ、ひいては苗移植機による苗の植付を適正に行える。また、苗寄せ案内杆２８等の案内手段によりマット苗の外端部の葉部が内側に案内されるので、苗倒伏用ベルト１３の倒伏作用でマット苗の葉部が外側に大きくはみ出るようなことを防止でき、葉部を外側にはみ出さないようにして適正にロール苗を形成することができる。 Therefore, according to this seedling winding assisting device 1, by changing the lower end position of the seedling lodging belt 13 by operating the handle 24, the lodging action state of the leaf portion of the mat seedling can be changed and adjusted as desired. When the strength of the leaf is small, the lowering position of the seedling lodging belt 13 is raised to raise the lodging action position, thereby preventing the leaf from being broken and damaged. On the other hand, when the strength of the seedling leaves is large and the leaves are difficult to fall, the lowering position of the seedling lodging belt 13 is lowered to lower the lodging action position, thereby obtaining a sufficient lodging action. Therefore, by changing the lodging position according to the condition of the seedling, it is possible to appropriately form a roll seedling without damaging the seedling and with a desired outer diameter, and by extension, seedling transplanting by a seedling transplanter is appropriate. Can be done. Further, since the leaf portion of the outer end portion of the mat seedling is guided inward by the guide means such as the seedling gathering guide rod 28, the leaf portion of the mat seedling protrudes greatly to the outside due to the falling action of the seedling lodging belt 13. This can be prevented, and a roll seedling can be formed appropriately without protruding the leaf part to the outside.

苗巻取補助装置１の前部には本体カバー１５から斜め前下側に延びる左右の苗押さえ用アーム３２を上下に回動可能に設け、左右の苗押さえ用アーム３２の間で該アーム３２の回動先端部に苗押さえローラ３３を設けている。この苗押さえローラ３３は、重量のある鉄製であり、駆動モータ６からの動力が苗押さえ伝動用チエーン３４を介して伝動されて走行速度と略同じ周速で駆動する。従って、マット苗の葉の強度があり該葉が硬く倒伏し難い場合に、ハンドル２４を操作して苗倒伏用ベルト１３をマット苗の葉部に作用しない高さまで上動させ、育苗トレイ２においてマット苗の巻取作業時とは逆方向から走行させることにより、苗押さえローラ３３でマット苗の葉部を予め一方側に倒伏させるべく押さえることができる。その後、苗押さえ用アーム３２を上側に回動させて苗押さえローラ３３をマット苗の葉部に作用しない高さまで上動させ、ハンドル２４を操作して苗倒伏用ベルト１３をマット苗の葉部に作用させるべく所望の高さに下動させ、苗巻取補助装置１の走行により苗倒伏用ベルト１３により苗の葉を確実に巻取側へ倒伏させながらマット苗を巻き取ることができる。尚、駆動モータ６を逆転させて苗巻取補助装置１を後進走行できる構成とし、この後進で苗押さえローラ３３によりマット苗の葉部を一方側に倒伏させる構成としてもよい。また、苗押さえローラ３３及び苗押さえ用アーム３２等を着脱可能に設け、予め苗の葉を倒伏させる必要のない場合には苗押さえローラ３３を取り外せる構成としてもよい。 A left and right seedling presser arm 32 extending diagonally forward and downward from the main body cover 15 is provided at the front portion of the seedling winding assist device 1 so as to be rotatable up and down, and the arm 32 is interposed between the left and right seedling presser arms 32. A seedling presser roller 33 is provided at the rotating tip of the. The seedling pressing roller 33 is made of heavy iron, and is driven at a peripheral speed substantially the same as the traveling speed by the power from the drive motor 6 being transmitted through the seedling pressing transmission chain 34. Therefore, when the strength of the mat seedling leaves is strong and the leaves are hard and difficult to fall, the handle 24 is operated to move the seedling lodging belt 13 up to a height that does not act on the leaves of the mat seedlings. By running the mat seedling from the opposite direction to the winding operation of the mat seedling, the seedling presser roller 33 can press the leaf portion of the mat seedling in advance to one side. Thereafter, the seedling holding arm 32 is rotated upward to move the seedling holding roller 33 to a height at which the seedling holding roller 33 does not act on the leaf portion of the mat seedling, and the handle 24 is operated so that the seedling lodging belt 13 is moved to the mat seedling leaf portion. The seedling winding assisting device 1 can be moved down to a desired height, and the seedling winding belt 13 can wind the mat seedling while reliably falling the seedling leaf to the winding side by the seedling lodging belt 13. In addition, it is good also as a structure which reversely drives the drive motor 6 and can make the seedling winding assistance apparatus 1 run backward, and the structure which makes the leaf part of the mat seedling fall down to one side by the seedling pressing roller 33 in this backward movement. Alternatively, the seedling presser roller 33 and the seedling presser arm 32 may be detachably provided so that the seedling presser roller 33 can be removed when it is not necessary to lay down the seedling leaves in advance.

尚、上述はロール苗案内前板１９を回動可能なアーム１２から支持する構成について説明したが、ロール苗案内前板１９を機体側に移動しないように固定して支持することもできる。また、ロール苗案内前板１９の一部（例えば下端部）を傾斜面に対して後側に突出させ、この突出部にロール苗の外周部が接する程度の位置で苗の巻き取り作業を行えば、ロール苗の外周部がロール苗案内前板１９に接触する面積が小さくなるので、ロール苗の回転抵抗を小さくでき、苗の巻き取り作業を円滑に行えると共に、苗の巻き取りにつれてロール苗の径が変化しても、ロール苗がロール苗案内前板１９に接触することによる回転抵抗の変化が少ないので、ロール苗の径に拘らず同じ回転抵抗でロール苗の巻き取り作業を行うことができ、巻き取り作業性が向上する。 In the above description, the roll seedling guide front plate 19 is supported from the pivotable arm 12. However, the roll seedling guide front plate 19 may be fixed and supported so as not to move to the machine body side. In addition, a part of the roll seedling guide front plate 19 (for example, the lower end portion) is projected rearward with respect to the inclined surface, and the seedling winding operation is performed at a position where the outer peripheral portion of the roll seedling is in contact with the protruding portion. For example, since the area where the outer periphery of the roll seedling comes into contact with the roll seedling guide front plate 19 is reduced, the rotational resistance of the roll seedling can be reduced, the seedling winding operation can be performed smoothly, and the roll seedling is rolled up as the seedling is wound up. Even if the diameter of the roll seedling changes, there is little change in rotational resistance due to the roll seedling coming into contact with the roll seedling guide front plate 19, so that the roll seedling is wound with the same rotational resistance regardless of the diameter of the roll seedling. The winding workability is improved.

尚、上述に代えて、ハンドル２４を、アーム１２より左右方向外側に配置する等してマット苗の上方から離れた位置に配置することができる。これにより、ハンドル２４にロール苗が干渉することがなく、またハンドル２４がロール苗の前方にない分、苗倒伏用ベルト１３にロール苗を近づける（ロール苗案内前板１９を近づける）ことができ、マット苗の葉部を倒伏させた直後に苗を巻き取ることができる。また、苗巻取補助装置１の左右一側方から前記ハンドル２４を容易に操作することができる。尚、ハンドル２４は、左右一側のみに設けてもよい。また、ハンドル２４として、アーム１２と一体回動する操作レバーを採用してもよい。 Instead of the above, the handle 24 can be arranged at a position away from the top of the mat seedling by arranging it on the outer side in the left-right direction from the arm 12. Thus, the roll seedling does not interfere with the handle 24, and the roll seedling can be brought closer to the seedling fall belt 13 (the roll seedling guide front plate 19 can be brought closer) by the amount that the handle 24 is not in front of the roll seedling. The seedling can be wound up immediately after the leaves of the mat seedling are laid down. Moreover, the said handle | steering-wheel 24 can be easily operated from the left-right one side of the seedling winding assistance apparatus 1. FIG. The handle 24 may be provided only on the left and right sides. Further, an operating lever that rotates integrally with the arm 12 may be employed as the handle 24.

尚、上述は苗巻取補助装置１の前部に苗押さえローラ３３を取り付ける構成について説明したが、左右のロール苗案内側板２９により苗押さえローラ３３の左右両端部を回動自在に支持する構成としてもよい。左右のロール苗案内側板２９に上側へ切り欠いた切り欠き溝を設けるとともに、苗押さえローラ３３の左右両端部に前記切り欠き溝に入る突出部を設ける構成とすることができる。このとき、苗押さえローラ３３は非駆動状態でマット苗に上側から押し当てられ、機体の前進で回転するようになる。これにより、苗押さえ用アーム３２等の苗押さえローラ３３を支持する格別の部材が不要となり、機体の軽量化が図れる。 In the above description, the configuration in which the seedling presser roller 33 is attached to the front portion of the seedling winding assist device 1 has been described. However, the left and right end portions of the seedling presser roller 33 are rotatably supported by the left and right roll seedling guide side plates 29. It is good. The left and right roll seedling guide side plates 29 can be provided with notched grooves cut out upward, and the right and left ends of the seedling presser roller 33 can be provided with protrusions that enter the notched grooves. At this time, the seedling pressing roller 33 is pressed against the mat seedling from the upper side in a non-driven state, and rotates as the machine body advances. This eliminates the need for a special member for supporting the seedling presser roller 33 such as the seedling presser arm 32, thereby reducing the weight of the machine body.

尚、苗巻取補助装置１の前部には、マット苗の葉部を切り揃えるための切断刃４０を設けている。この切断刃４０により、マット苗の葉部の高さが略均一にできるので、苗倒伏用ベルト１３による葉部の倒伏作用を適切に得ることができ、ひいてはロール苗の径を適正にして移植機による苗の移植精度を向上させることができる。また、苗の巻き取り作業と同時にマット苗の葉部を切断できるので、別途葉部の切断を行う場合と比較して作業能率が向上する。尚、マット苗の葉部を切断しないときのために、切断刃４０を退避させることができる構成とすればよい。 In addition, the cutting blade 40 for cutting and aligning the leaf part of a mat | matte seedling is provided in the front part of the seedling winding assistance apparatus 1. FIG. Since the cutting blade 40 can make the height of the leaf portion of the mat seedling substantially uniform, it is possible to appropriately obtain the leaf sectioning action of the seedling lodging belt 13 and to transplant the roll seedling with an appropriate diameter. The accuracy of seedling transplanting by the machine can be improved. Further, since the leaf portion of the mat seedling can be cut simultaneously with the winding operation of the seedling, the work efficiency is improved as compared with the case of separately cutting the leaf portion. In addition, what is necessary is just to set it as the structure which can retract | save the cutting blade 40, when not cutting the leaf part of a mat | matte seedling.

尚、苗巻取補助装置１の前部にマット苗の葉部を検出する苗センサを設け、該苗センサが苗を検出しなくなると苗巻取補助装置１の走行が自動的に停止する構成としてもよい。これにより、作業者はマット苗の終端での苗巻取補助装置１の走行停止操作に気をとられず苗の巻き取り作業に専念することができる。 In addition, the seedling sensor which detects the leaf part of a mat | matte seedling is provided in the front part of the seedling winding auxiliary | assistance apparatus 1, and when this seedling sensor stops detecting a seedling, the driving | running | working of the seedling winding auxiliary | assistance apparatus 1 stops automatically It is good. Thereby, an operator can concentrate on the winding-up operation of the seedling without paying attention to the traveling stop operation of the seedling winding assisting device 1 at the end of the mat seedling.

尚、苗巻取補助装置１の後部で苗倒伏用ベルト１３より後側にマット苗に薬剤を散布する薬剤散布装置を設け、苗の巻き取りと同時に苗に薬剤を散布する構成とすることができる。これにより、格別に薬剤散布作業を行う必要がなく、作業能率が向上する。この薬剤散布装置は、苗倒伏用ベルト１３により苗の葉部を倒伏させた後に薬剤を散布するので、薬剤が苗の床部に供給されやすく、苗移植後の薬剤の効用を高めることができる。 In addition, it is set as the structure which spreads a chemical | medical agent to a seedling simultaneously with winding of a seedling by providing the chemical | medical agent spraying apparatus which spreads a chemical | medical agent to a mat | matte seedling at the rear part of the seedling winding assisting device 1 and behind the seedling lodging belt 13. it can. Thereby, it is not necessary to perform the medicine spraying work, and the work efficiency is improved. Since this medicine spraying device sprays the medicine after the seedling lodging belt 13 has fallen the leaves of the seedling, the medicine is easily supplied to the floor of the seedling, and the utility of the medicine after seedling transplantation can be enhanced. .

また、左右のロール苗案内側板２９を左右方向に若干量回動する構成とし、ロール苗案内側板２９の回動により苗巻取補助装置１の進行方向が左右にずれたことをすばやく検出し、この検出に基づいて左右の走行車輪５の駆動回転数を異ならせて進行方向が適正となるように機体を操向させることができる。この構成によると、育苗トレイ２の左右両側部の壁部２ａを走行車輪５と合致するレール形状にしなくてよいため、コストダウンが図れる。尚、上記構成において、左右のロール苗案内側板２９の一部（後部）のみが左右に回動するようにしてもよい。また、ロール苗案内側板２９による進行方向の誤検出を防ぐため、左右のロール苗案内側板２９が共に同じ側に回動したときのみ、左右の走行車輪５の駆動制御を行う構成としてもよい。 Further, the left and right roll seedling guide side plates 29 are configured to rotate by a small amount in the left and right direction, and it is quickly detected that the traveling direction of the seedling winding assisting device 1 has shifted to the left and right due to the rotation of the roll seedling guide side plates 29. Based on this detection, the airframe can be steered so that the traveling direction is appropriate by changing the drive rotational speed of the left and right traveling wheels 5. According to this structure, since it is not necessary to make the wall part 2a of the right-and-left both sides of the seedling raising tray 2 into the rail shape corresponding to the driving | running | working wheel 5, cost reduction can be aimed at. In the above configuration, only a part (rear part) of the left and right roll seedling guide side plates 29 may be rotated left and right. In order to prevent erroneous detection of the traveling direction by the roll seedling guide side plate 29, the drive control of the left and right traveling wheels 5 may be performed only when both the left and right roll seedling guide side plates 29 are rotated to the same side.

尚、図７に示すように、巻取軸４の左右中央部の径を左右両端部の径に比べて小さくすれば、巻き取られる苗の左右両端部の葉部は左右中央部側へ案内され易くなり、ロール苗の側面から苗の葉が突出するようなことを防止でき、ひいては移植機による苗の移植を円滑に行える。 In addition, as shown in FIG. 7, if the diameter of the left and right center part of the winding shaft 4 is made smaller than the diameters of the left and right end parts, the leaf parts of the left and right end parts of the seedling to be wound are guided to the left and right center part side. This makes it easy to prevent the leaves of the seedlings from protruding from the side of the roll seedlings, and the transplanting of the seedlings by the transplanter can be performed smoothly.

また、図８は異なる苗巻取補助装置を示すものであり、左右一対の走行車輪５の回転で苗倒伏用ベルト１３が駆動するものである。この走行車輪５は大径であるので、左右の走行車輪５を繋ぐ車軸４１をマット苗の葉部が干渉しないような高い位置に配置でき、左右の走行車輪５で個別の伝動装置を設ける必要がなく、軽量化及びコストダウンが図れる。尚、この苗巻取補助装置においては、前記走行車輪５とは別個に機体を支持するための非駆動の補助車輪４２を設けている。 FIG. 8 shows a different seedling take-up assist device, in which the seedling fall belt 13 is driven by the rotation of a pair of left and right traveling wheels 5. Since the traveling wheel 5 has a large diameter, the axle 41 connecting the left and right traveling wheels 5 can be arranged at a high position so that the leaves of the mat seedlings do not interfere with each other, and it is necessary to provide separate transmission devices for the left and right traveling wheels 5. It is possible to reduce weight and cost. In the seedling winding assist device, a non-driven auxiliary wheel 42 for supporting the machine body is provided separately from the traveling wheel 5.

図９は、前記補助車輪４２を走行車輪５の前後に配置し、この前後の補助車輪を天秤アーム４３の両端部に各々設けた構成を示すものである。この構成によると機体の前部及び後部の何れに育苗トレイ２の前後端の壁部２ｂが位置しても、補助車輪４２を前記壁部２ｂに乗り上げて育苗トレイ２の端まで機体を走行させることができ、マット苗の端まで確実に葉部を倒伏させることができる。尚、前記補助車輪４２は、通常は前側の補助車輪４２が接地するべく該車輪４２を下方に付勢している。 FIG. 9 shows a configuration in which the auxiliary wheels 42 are arranged on the front and rear sides of the traveling wheel 5, and the front and rear auxiliary wheels are provided at both ends of the balance arm 43, respectively. According to this configuration, even if the front and rear wall portions 2b of the seedling tray 2 are located at the front and rear portions of the machine body, the auxiliary wheel 42 is mounted on the wall section 2b and the machine body is driven to the end of the seedling tray 2. The leaf part can be surely laid down to the end of the mat seedling. The auxiliary wheel 42 normally urges the wheel 42 downward so that the front auxiliary wheel 42 contacts the ground.

ところで、上述のような長いマット苗を育苗する育苗トレイ２は、図１０に示すように、左右に複数並列に設けられ、作業者はこの育苗トレイ２の側方から苗の巻き取り作業を行うことになる。従って、左右中央部の育苗トレイ２上で苗の巻き取り作業を行うときは、手が届きにくい。そこで、図１０に示すように、育苗トレイ２の外側に該育苗トレイ２に沿うステップ４４を出し入れ可能に設け、巻き取り作業位置に手が届きにくいときは、ステップ４４を出して作業者が該ステップ４４上を歩行しながら苗の巻き取り作業を容易に行える構成とすることができる。これにより、ロール苗の径を小さくするために苗をきつく巻き取るべく、ロール苗に上方から作業者の体重を容易にかけながら苗の巻き取り作業を行える。前記ステップ４４は、育苗トレイ２を支持する支脚４５に設けたＬ字状の長孔４６に該ステップ４４と一体の複数のピン４７を挿入した構成とし、前記長孔４６に沿ってピン４７を移動させることによりステップ４４を略９０度回転させて出し入れする構成となっている。従って、左右方向端部の育苗トレイ２上で苗の巻き取り作業を行うときは、ステップ４４を収納することにより、該ステップ４４が邪魔にならずに作業が行える。また、苗押さえローラ３３を単体でマット苗上で転がせてマット苗の葉部を予め一方側に倒伏させる作業を行うとき、ステップ４４により苗押さえローラ３３に上方から作業者の体重を容易にかけながら行え、葉部の倒伏作用を確実に得ることができる。 By the way, as shown in FIG. 10, a plurality of seedling trays 2 for raising long mat seedlings as described above are provided in parallel on the left and right sides, and an operator performs a seedling winding operation from the side of the seedling tray 2. It will be. Therefore, it is difficult to reach the hands when the seedling winding operation is performed on the seedling tray 2 at the center of the left and right. Therefore, as shown in FIG. 10, a step 44 along the seedling tray 2 is provided on the outside of the seedling tray 2 so that it can be taken in and out. It can be set as the structure which can perform the winding-up operation | work of a seedling easily, walking on step 44. FIG. Thereby, in order to wind up a seedling tightly in order to make the diameter of a roll seedling small, winding work of a seedling can be performed, applying an operator's weight to a roll seedling from the upper part easily. The step 44 has a configuration in which a plurality of pins 47 integral with the step 44 are inserted into an L-shaped long hole 46 provided on a support leg 45 that supports the seedling tray 2, and the pin 47 is inserted along the long hole 46. By moving it, the step 44 is rotated approximately 90 degrees and is taken in and out. Therefore, when the seedling winding operation is performed on the seedling raising tray 2 at the end portion in the left-right direction, by storing the step 44, the operation can be performed without disturbing the step 44. Further, when the seedling pressing roller 33 is rolled on the mat seedling as a single unit and the leaf portion of the mat seedling is previously laid down to one side, the weight of the operator is easily applied to the seedling pressing roller 33 from above by step 44. It can be performed, and the lodging action of the leaf part can be obtained with certainty.

苗巻取補助装置を示す側面図Side view showing seedling winding assist device 苗巻取補助装置を示す一部断面平面図Partial cross-sectional plan view showing seedling winding assist device 苗巻取補助装置を示す一部断面背面図Partial cross-sectional rear view showing seedling winding assist device 苗倒伏用ベルトを示す側面図Side view showing the seedling lodging belt 本体カバーの下端縁を示す背面図Rear view showing the bottom edge of the cover 苗倒伏用ベルトを示す断面平面図Cross-sectional plan view showing a seedling lodging belt 異なる巻取軸を示す図Diagram showing different winding shafts 異なる苗巻取補助装置の概要を示す側面図Side view showing an overview of different seedling winding assist devices 異なる補助車輪の形態を示す側面図（ａ：通常時、ｂ：トレイ終端に到達時）Side view showing different auxiliary wheel configurations (a: normal, b: reaching the end of the tray) 育苗トレイを示す斜視図Perspective view showing a seedling tray

１苗巻取補助装置
３マット苗
５走行手段
１２アーム
１３苗倒伏用ベルト
１３ａ凸条
１４移動ローラ
１６固定ローラ
１９ロール苗案内前板
２７収束案内板
２８苗寄せ案内杆
２９ロール苗案内側板
４０切断刃
ｙ葉部 DESCRIPTION OF SYMBOLS 1 Seedling winding assistance device 3 Mat seedling 5 Traveling means 12 Arm 13 Seedling fall belt 13a Convex 14 Moving roller 16 Fixed roller 19 Roll seedling guide front plate 27 Convergence guide plate 28 Seedling guide rod 29 Roll seedling guide side plate 40 Cutting Blade y Leaf

Claims

When the mat seedling (3) is wound in a roll shape, a traveling means (5) is provided for traveling on the mat seedling (3) according to the winding, and the leaf portion of the mat seedling (3) before winding A seedling lodging belt (13) that acts on (y) to fall the leaf portion (y) is provided, and the seedling lodging belt (13) is provided with a fixed roller (16) on the front side of the machine body and a moving roller on the rear side of the machine body. (14) is wound so as to be in a slanting and descending posture, and the left and right sides of the seedling lodging belt (13) are on the lower surface side of the seedling lodging belt (13) and the laterally outer side is the rear side. Provided with a sloping ridge (13a) with respect to the circumferential direction of the seedling lodging belt (13) so as to be located at
An arm (12) that pivots up and down around a pivot shaft (11) in the horizontal direction is provided at the rear of the machine body, and a handle (24) that pivots the arm (12) up and down is provided on the upper side of the arm (12). Providing a moving roller (14) for winding the seedling lodging belt (13) on the lower end of the arm (12),
A convergence guide plate (27) for converging and guiding the leaf portions (y) of the left and right outer portions of the mat seedling (3) inward in the left-right direction is provided on each of the left and right sides of the front end of the machine body. A seedling guide rod (28) for guiding the left and right outer leaves (y) of the mat seedling (3) guided inward in the left-right direction is further provided on the left and right sides, respectively, Roll seedling guide plates (29) for guiding the left and right end portions of the roll seedling wound in a roll form on each,
A seedling winding assist device provided with a cutting blade (40) for cutting and aligning the leaves (y) of the mat seedling (3) at the lower front end of the machine body.