JPH1033033A - Seedling planter for sulky rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling planter for sulky rice transplanter of streamlined structure provided with a seedling base of reduced lateral width without adoption of large complex structure. SOLUTION: This seedling planter for sulky rice transplanter is equipped with a laterally reciprocating seedling base, a planting mechanism that takes out seedlings on the seedling base and plants the taken-out seedlings in multiple rows to a paddy field in association with the lateral movement of the seedling base, in such a construction that the left and right seedling stages 11B can freely be jointed to and separated from the middle seedling stage 11A of the seedling base with supports F fitted in an upper and lower positions on the side of the seedling positioning face 11S of the seedling stage 11B so as to receive and support the upper and lower positions of the seedling stage 11B in the separate condition.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、苗を載置して往復
横移動する苗載せ台と、苗載せ台の横移動に伴って苗載
せ台に載置された苗を切出して圃場面に植付ける植付け
機構とを備えて複数条用に構成された乗用型田植機の苗
植付装置に関し、詳しくは、格納時には苗載せ台の横幅
方向での寸法を小さくする技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling stage on which seedlings are placed and reciprocated and moved laterally, and seedlings placed on the seedling stage with the lateral movement of the seedling stage. More specifically, the present invention relates to a technique for reducing the size of a seedling mounting table in the lateral width direction during storage, when storing the seedling mounting apparatus for a riding type rice transplanter configured for a plurality of rows.

【０００２】[0002]

【従来の技術】従来、上記のよう格納時には苗載せ台の
横幅方向での寸法を小さくし得るように構成された苗植
付装置としては特開平５‐７４０７号公報に示されるも
のが存在し、この従来例では苗載せ台の両端の折畳み部
を中央側の苗載せ台に対してリンク機構を介して連結し
てあり、格納時には中央側の苗載せ台に対して両端の折
畳み部を垂れ下がる姿勢に切換えることで横幅方向での
寸法を小さくし得るものとなっている。2. Description of the Related Art Conventionally, as a seedling planting apparatus configured to reduce the size of a seedling mounting table in the width direction at the time of storage as described above, there is one disclosed in Japanese Patent Application Laid-Open No. Hei 5-7407. In this conventional example, the folded portions at both ends of the seedling rest are connected to the center seedling rest via a link mechanism, and the folded portions at both ends are suspended from the center seedling rest at the time of storage. By switching to the posture, the dimension in the width direction can be reduced.

【０００３】[0003]

【発明が解決しようとする課題】両端の折畳み部を垂れ
下がり姿勢に切換えるものを考えるに、苗載せ台は側面
視で苗載せ面が緩やかな曲面となることから、中央の苗
載せ台と折畳み部との分割面に対して単純なヒンジを配
置することで折り畳みを可能にしようとしても、このよ
うにヒンジを配置したものでは折畳み部の姿勢の切換え
時に分割面同志が接触して折畳みを行えないものとな
り、該従来例にも示されるように複数の枢支軸を備えた
複雑な構造のリンク機構を用いて分割面同志を大きく離
間させた状態で姿勢の切換えを可能にする構造を採用し
ている。Considering the case where the folded portions at both ends are switched to the hanging posture, the seedling mounting table has a gentle curved surface in side view. Even if an attempt is made to enable folding by arranging a simple hinge with respect to the dividing plane, the folding plane cannot be folded due to contact between the dividing planes at the time of switching the posture of the folding unit with such a hinge arrangement As shown in the conventional example, a structure is adopted in which the posture can be switched in a state where the divided surfaces are largely separated from each other by using a complicated link mechanism having a plurality of pivot shafts. ing.

【０００４】しかし、複雑な構造のリンク機構を用いて
折畳み部の姿勢の切換えを可能にするものでは、前述の
ように複雑の構造のリンク機構を必要とするばかりでな
く、部品点数が増大しやすく、又、大型で重量物となり
やすい折り畳み部の姿勢の切換えを可能にするためにリ
ンク機構も大型化するものとなることから改善の余地が
ある。[0004] However, in the case where the attitude of the folded portion can be switched using a link mechanism having a complicated structure, not only the link mechanism having a complicated structure is required as described above, but also the number of parts is increased. There is room for improvement because the link mechanism becomes large in order to enable the switching of the orientation of the folded portion which is easy and large and which tends to be heavy.

【０００５】本発明の目的は、複雑で大型の構造を採用
することなく苗載せ台の苗載せ台の横幅を小さくし得る
苗植付装置を合理的に構成する点にある。An object of the present invention is to rationally configure a seedling planting apparatus which can reduce the lateral width of a seedling mounting table without adopting a complicated and large-sized structure.

【０００６】[0006]

【課題を解決するための手段】本発明の第１の特徴（請
求項１）は冒頭に記したように、苗を載置する苗載せ台
と、苗載せ台の横移動に伴って苗載せ台に載置された苗
を切出して圃場面に植付ける植付け機構とを備えて複数
条用に構成された乗用型田植機の苗植付装置において、
前記苗載せ台を、苗載せ台の中央の苗載せ部に対して左
右両端の苗載せ部を連結する状態と分離する状態とに切
換え自在に構成すると共に、中央の苗載せ部の苗載せ面
の側の上部位置と下部位置とに、分離状態の苗載せ部の
上部位置と下部位置とを受止め支持する支持部を形成し
てある点にあり、その作用は次の通りである。According to a first aspect of the present invention, as described at the outset, a seedling mounting table on which seedlings are mounted and a seedling mounting with the lateral movement of the seedling mounting table. In a seedling planting device of a riding type rice transplanter configured with a plurality of rows, including a planting mechanism that cuts out the seedlings placed on the table and plants them in the field scene,
The seedling mounting table is configured to be freely switchable between a state where the left and right seedling mounting sections are connected to a center seedling mounting section of the seedling mounting table and a state where the seedling mounting sections are separated from each other, and a seedling mounting surface of the central seedling mounting section. A support portion for receiving and supporting the upper position and the lower position of the seedling placing portion in a separated state is formed at the upper position and the lower position on the side of, and the operation is as follows.

【０００７】本発明の第２の特徴（請求項２）は、前記
支持部に支持した苗載せ部を、中央の苗載せ部に対して
固定する保持機構を備えている点にあり、その作用は次
の通りである。[0007] A second feature of the present invention (claim 2) resides in that a holding mechanism for fixing a seedling placing portion supported by the support portion to a central seedling placing portion is provided. Is as follows.

【０００８】本発明の第３の特徴（請求項３）は、前記
中央の苗載せ部に対して端部の苗載せ部を連結するため
のロック機構を苗載せ台の苗載せ面の側と、反苗載せ面
の側とに備えている点にあり、その作用は次の通りであ
る。A third feature of the present invention is that a lock mechanism for connecting an end seedling mounting portion to the center seedling mounting portion is provided on a side of a seedling mounting surface of a seedling mounting table. , And on the side of the anti-seedling mounting surface, and the operation is as follows.

【０００９】〔作用〕上記第１の特徴によると、苗載せ
台の横方向の寸法を小さくする場合には、左右両端の苗
載せ部を、中央の苗載せ部から分離すると共に、このよ
うに分離した苗載せ部を中央の苗載せ部の上部位置と下
部位置とに形成した支持部に対して受け止め支持させる
ことで、該分離状態の苗載せ部は上部と下部とで安定的
に中央の苗載せ部に支持されるものとなる。つまり、従
来例のように中央の苗載せ部に対して支持した状態のま
ま両端の苗載せ部の姿勢を切換えるものでは無く、両端
の苗載せ部を中央の苗載せ部から完全に分離して中央の
苗載せ部に支持するので、リンク機構のような複雑な部
材を必要としないばかりで無く、分離した苗載せ部を無
理のない姿勢で中央の苗載せ部に支持させ得るものとな
る。According to the first feature, when the lateral size of the seedling mounting table is reduced, the right and left seedling mounting portions are separated from the central seedling mounting portion. By receiving and supporting the separated seedling mounting portion on the support portion formed at the upper position and the lower position of the central seedling mounting portion, the separated seedling mounting portion is stably positioned at the center between the upper portion and the lower portion. It will be supported by the seedling mounting part. In other words, instead of switching the posture of the seedling placing portions at both ends while supporting the seedling placing portion at the center as in the conventional example, the seedling placing portions at both ends are completely separated from the central seedling placing portion. Since it is supported by the central seedling mounting portion, not only a complicated member such as a link mechanism is not required, but also the separated seedling mounting portion can be supported by the central seedling mounting portion in a reasonable posture.

【００１０】上記第２の特徴によると、中央の苗載せ部
に支持した分離状態の苗載せ部は保持機構によって中央
の苗載せ部に固定されるものとなり、例えば、この状態
の田植機をトラック等で運搬する際に外部から衝撃が作
用することがあっても分離状態の苗載せ部が支持部から
外れ落ちることもない。According to the second feature, the separated seedling mounting portion supported by the central seedling mounting portion is fixed to the central seedling mounting portion by the holding mechanism. Even when an impact is applied from the outside when transporting the seedlings, the separated seedling mounting portion does not fall off the support portion.

【００１１】上記第３の特徴によると、中央の苗載せ部
に対して端部の苗載せ部を連結する際には、苗載せ台の
苗載せ面の側のロック機構と、苗載せ台の反苗載せ面の
側のロック機構とで中央の苗載せ部と端部の苗載せ部と
を連結するので強力な連結が可能となる。According to the third feature, when connecting the seedling placing portion at the end to the seedling placing portion at the center, the locking mechanism on the side of the seedling placing surface of the seedling placing stand, The lock mechanism on the side opposite to the seedling placing surface connects the central seedling placing portion and the seedling placing portion at the end, so that a strong connection is possible.

【００１２】[0012]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１に示すように、ステアリング
操作される駆動型の前車輪１、及び、駆動型の後車輪２
を備えた走行機体３の前部にエンジン４を搭載すると共
に、この走行機体３の前部にエンジン４からの動力が伝
えられるベルト式の無段変速装置Ｖ、ミッションケース
５夫々を配置し、又、走行機体３の中央部にステアリン
グハンドル６と運転座席７とを配置し、走行機体３の後
端部に対しリフトシリンダ８で駆動昇降するリンク機構
９を介し苗植付装置Ａを連結して田植機を構成する。Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a drive-type front wheel 1 and a drive-type rear wheel 2 that are steered.
The engine 4 is mounted on the front of the traveling body 3 provided with a belt-type continuously variable transmission V and the transmission case 5 to which power from the engine 4 is transmitted. A steering handle 6 and a driver's seat 7 are arranged at the center of the traveling body 3, and a seedling planting device A is connected to a rear end of the traveling body 3 via a link mechanism 9 driven up and down by a lift cylinder 8. To construct a rice transplanter.

【００１３】図１〜図３に示すように、前記苗植付装置
Ａは、マット状苗Ｗを載置する苗載せ台１１と、この苗
載せ台１１を左右方向に移動自在に支持する摺動レール
１２と、走行機体３からの動力が伝えられる伝動ケース
１３と、この伝動ケース１３からの動力が伝えられるチ
ェーンケース１４と、このチェーンケース１４からの動
力で回転駆動されるロータリケース１５と、このロータ
リケース１５に備えた一対の植付アーム１６，１６（植
付機構の一例）と、複数の整地フロート１７とを備えて
８条植え用に構成され、植付け作動時には伝動ケース１
３からの動力で苗載せ台１１を横方向に往復移動させな
がら苗載せ台１１に載置したマット状苗Ｗの下端から植
付アーム１６の植付爪が苗を１株ずつ切出して圃場面に
植付ける作動を行うものとなっており、その左右両側部
には端部が圃場面に突入する作用姿勢と、圃場面から上
方に離間する非作用姿勢とに切換自在なラインマーカ１
８を備えている。As shown in FIGS. 1 to 3, the seedling planting apparatus A includes a seedling mounting table 11 on which a mat-shaped seedling W is mounted, and a slide for supporting the seedling mounting table 11 so as to be movable in the left-right direction. A moving rail 12, a transmission case 13 to which the power from the traveling body 3 is transmitted, a chain case 14 to which the power from the transmission case 13 is transmitted, and a rotary case 15 which is rotated and driven by the power from the chain case 14. The rotary case 15 is provided with a pair of planting arms 16 and 16 (an example of a planting mechanism) and a plurality of leveling floats 17 and is configured for eight-row planting.
The planting claw of the planting arm 16 cuts out the seedlings one by one from the lower end of the mat-shaped seedling W placed on the seedling placing stand 11 while reciprocating the seedling placing stand 11 in the lateral direction with the power from 3, and cutting the seedlings one by one. A line marker 1 is provided on both left and right sides of the line marker 1 that can be switched between an operating position in which the end enters the field scene and a non-operation position in which the end is separated upward from the field scene.
8 is provided.

【００１４】又、運転座席７の右側部には苗植付装置Ａ
の昇降と、前記ミッションケース５に内蔵した植付クラ
ッチ（図示せず）の入り切り操作を行う昇降レバー１９
を備え、この昇降レバー１９の操作で植付クラッチを入
り操作した場合には走行機体３から苗植付装置Ａに動力
を伝えて植付作動を行い得るものとなっている。On the right side of the driver's seat 7, a seedling plant A
Up and down, and the on / off operation of a planting clutch (not shown) built in the transmission case 5
When the planting clutch is engaged by operating the elevating lever 19, the planting operation can be performed by transmitting power from the traveling machine body 3 to the seedling planting apparatus A.

【００１５】前記苗載せ台１１は、側面視で後方側ほど
下方に傾斜する姿勢に設定されると共に、平滑な苗載せ
面１１Ｓと、載置されるマット状苗Ｗを１条毎分離する
縦壁状のリブ１１Ｔとを備えている。又、苗載せ面１１
Ｓの下部位置には１条につき一対の縦送りベルト２１を
備え、苗載せ面１１Ｓを覆う位置には縦長の複数のロッ
ド材で成る苗ステー２２を備えている。縦送りベルト２
１は図１０に示す如く、上下側の輪体２３，２３に亘っ
て巻回され、下方の輪体２３を貫通する縦送り軸２４の
回転駆動によって縦送りベルト２１の苗載せ面側を下方
に駆動してマット状苗Ｗを下方に送るよう構成され、苗
ステー２２は図７に示すように、リブ下部位置の上面に
備えたブラケット２５に対して横長姿勢で備えた支持ロ
ッド２６に対してその基端部を固定して構成され、この
苗ステー２２によってマット状苗Ｗの浮き上がりを防止
すると共に、支持ロッド２６の軸芯周りでの回動によっ
て該苗ステー２２と苗載せ面１１Ｓとの距離を調節を行
い、苗ステー２２の上部を大きく後方に揺動させること
でマット状苗Ｗの取出しを行えるよう構成されている。The seedling mounting table 11 is set so as to be inclined downward toward the rear side when viewed from the side, and separates the smooth seedling mounting surface 11S and the mat-shaped seedling W to be mounted one by one. And a wall-shaped rib 11T. Seedling loading surface 11
A pair of vertical feed belts 21 is provided at a lower position of S, and a seedling stay 22 made of a plurality of vertically long rod materials is provided at a position covering the seedling mounting surface 11S. Vertical feed belt 2
As shown in FIG. 10, 1 is wound around the upper and lower loops 23, 23, and the vertical feed shaft 24 passing through the lower loop 23 is driven to rotate so that the seedling mounting side of the vertical feed belt 21 is lowered. And the mat-like seedlings W are sent downward, and the seedling stays 22 are mounted on the support rods 26 provided in the horizontal position with respect to the brackets 25 provided on the upper surface of the rib lower position, as shown in FIG. The seedling stay 22 prevents the mat-shaped seedling W from floating, and the support rod 26 rotates around the axis to move the seedling stay 22 and the seedling mounting surface 11S. Is adjusted so that the upper portion of the seedling stay 22 is swung largely rearward, whereby the mat-shaped seedling W can be taken out.

【００１６】図２，図５，図６に示すように、苗載せ台
１１の反苗載せ台面側の上部位置には、前記チェーンケ
ース１４の前端が連結するツールフレーム２７から立設
した支柱２８の上端に遊転支承されたローラ２９に案内
されるガイドレール３０を備え、苗載せ台１１の下端位
置には前記摺動レール１２に案内されるガイド部材３１
を備えている。又、前記ツールフレーム２７の端部位置
にはブラケット３２を介して摺動レール１２の外端を保
護する保護フレーム３３を備え、更に、図１７に示すよ
うに、同様にこのツールフレーム２７の外端部の支持部
材３４に対して前記ラインマーカ１８が揺動自在に支持
されている。As shown in FIGS. 2, 5, and 6, at the upper position of the seedling mounting table 11 on the side opposite to the seedling mounting surface, a column 28 standing upright from a tool frame 27 to which the front end of the chain case 14 is connected. A guide rail 30 is provided at an upper end of the seedling mounting table 11 and is guided by a roller 29 supported by an idler.
It has. Further, a protection frame 33 for protecting the outer end of the slide rail 12 via a bracket 32 is provided at an end position of the tool frame 27. Further, as shown in FIG. The line marker 18 is swingably supported by an end support member 34.

【００１７】図３，図４に示すように、前記苗載せ台１
１は、中央の６条の苗載せ部１１Ａに対して、左右の両
端の１条の苗載せ部１１Ｂ，１１Ｂを分離自在に連結す
ると共に、分離した苗載せ部１１Ｂ，１１Ｂを中央の苗
載せ部１１Ａの苗載せ面側に支持し得るよに構成して、
苗載せ台１１の横方向の寸法の縮小を図る格納姿勢に切
換え自在に構成されている。As shown in FIG. 3 and FIG.
Reference numeral 1 designates a single seedling mounting portion 11B, 11B on each of the left and right ends that is detachably connected to a central six seedling mounting portion 11A, and separates the seedling mounting portions 11B, 11B from the central seedling mounting portion 11A. It is configured so that it can be supported on the seedling placing surface side of the portion 11A,
The seedling mounting table 11 is configured to be freely switchable to a storage position for reducing the lateral dimension.

【００１８】つまり、図５〜図７に示すように、中央の
苗載せ部１１Ａと、左右の両端の１条の苗載せ部１１
Ｂ，１１Ｂとの分割面Ｄは苗載せ台１１のリブ１１Ｔの
上面の部位を分離する位置に形成され、苗載せ面１１Ｓ
の側の分割面Ｄの上部位置と中間位置と下部位置との３
箇所、及び、反苗載せ面の側の上部位置と下部位置との
２箇所に苗載せ部１１Ａ，１１Ｂ同士を連結するロック
機構Ｅを備え、又、中央の苗載せ部１１Ａの苗載せ面１
１Ｓの側における両端部近傍の上部位置と下部位置には
分離した苗載せ部１１Ｂを支持する支持部Ｆを備えてい
る。That is, as shown in FIGS. 5 to 7, a central seedling mounting portion 11A and a single seedling mounting portion 11 on both left and right ends.
The split surface D between the first and second seedlings 11B and 11B is formed at a position separating the upper surface of the rib 11T of the seedling mounting base 11, and the seedling mounting surface 11S is formed.
Of the upper, middle, and lower positions of the dividing surface D on the side of
And a lock mechanism E for connecting the seedling placing portions 11A and 11B to each other at two positions, an upper position and a lower position on the side opposite to the seedling placing surface, and the seedling placing surface 1 of the central seedling placing portion 11A.
Support portions F for supporting the separated seedling placing portions 11B are provided at upper and lower positions near both ends on the 1S side.

【００１９】前記苗載せ面１１Ｓの側の３箇所のロック
機構Ｅは、図１２〜図１４に示すように、リブ上面の分
割面Ｄを挟んだ位置に対向して配置される一対の被挟圧
片３５，３５と、横向き姿勢の支軸３６周りでの姿勢切
換えによって一対の被挟圧片３５、３５を挟み込む挟圧
部材３７とで構成され、前記反苗載せ面の側の２箇所の
ロック機構Ｅのうち上部のものは、図５，図１１に示す
ように、分割面Ｄを挟んで対向する位置に配置された一
対の保持部材３８，３８と、一方の保持部材３８に備え
られ他方の貫通孔３８Ａに挿通する位置決め用の杆状体
３９と、一方の保持部材３８に備えられ他方の係合用の
凹部３８Ｂに嵌まり込んで夫々を引き寄せる方向に操作
するよう支軸４０周りで揺動自在なアーム４１のネジ部
４１Ａに螺合するためのクランプ４２とを備えて構成さ
れ、又、前記反苗載せ面の側の２箇所のロック機構Ｅの
うち下部のものは、図５，図１０に示すように、分割面
Ｄを挟んで対向する位置に配置された一対のプレート４
３，４３と、このプレート４３、４３のうち内方のもの
に備えたナット４４と、外方のプレート４３を貫通可能
に遊転支承された横長姿勢で内端側にネジ部４５Ａを形
成し、外端部に操作ノブ４５Ｂを備えた回動軸と４５で
構成されている。As shown in FIGS. 12 to 14, the three lock mechanisms E on the side of the seedling-mounting surface 11S are provided with a pair of clamped members arranged opposite to each other with the divided surface D of the rib upper surface interposed therebetween. Pressure members 35, 35, and a pressure member 37 for holding the pair of pressure-receiving pieces 35, 35 by switching the posture around the support shaft 36 in the horizontal position. As shown in FIGS. 5 and 11, the upper one of the lock mechanisms E is provided on a pair of holding members 38, 38 arranged at positions facing each other across the division surface D, and one of the holding members 38. A positioning rod 39 inserted into the other through hole 38A and a support shaft 40 around the support shaft 40 so as to be fitted in the other engaging recess 38B provided in the one holding member 38 and operated in a direction of drawing each. Screws into the screw 41A of the swingable arm 41 And a lower portion of the two lock mechanisms E on the side opposite to the seedling placing surface, as shown in FIG. 5 and FIG. A pair of plates 4 arranged at opposing positions
3, 43, a nut 44 provided on the inner one of the plates 43, 43, and a screw portion 45A formed on the inner end side in a laterally long posture in which the outer plate 43 is freely rotatably supported so as to penetrate therethrough. , And a rotary shaft 45 having an operation knob 45B at the outer end.

【００２０】図７に示すように、前記上部位置の支持部
Ｆは中央の苗載せ部１１Ａの外端に位置する１条分の苗
載せ面１１Ｓを挟む位置のリブ１１Ｔの上面同士に亘っ
て門型に成形されたロッド材４８の横長姿勢のロッド部
分に一対のゴム体４９，４９を備えて構成され、又、図
７，図１４，図１５に示すように、前記下部位置の支持
部Ｆは中央の苗載せ部１１Ａの外端に位置する１条分の
苗載せ面１１Ｓを挟む位置のリブ１１Ｔの上面夫々に立
設した杆状体５０の上端にブロック状の支持体５１を備
えると共に、夫々の支持体５１に対して縦向き姿勢の支
軸５２周りで揺動自在な押圧部材５３に操作アーム５４
を有した保持機構Ｇを備えている。As shown in FIG. 7, the support portion F at the upper position extends over the upper surfaces of the ribs 11T at the positions sandwiching the seedling mounting surface 11S for one row located at the outer end of the central seedling mounting portion 11A. A pair of rubber bodies 49, 49 are provided on the rod portion of the rod member 48 formed in a gate shape in a horizontally long posture, and as shown in FIG. 7, FIG. 14, FIG. F has a block-shaped support body 51 at the upper end of a rod-like body 50 erected on the upper surface of each of the ribs 11T at a position sandwiching the one seedling mounting surface 11S located at the outer end of the central seedling mounting part 11A. At the same time, an operating arm 54 is attached to a pressing member 53 that is swingable around a support shaft 52 that is vertically oriented with respect to each support 51.
Is provided.

【００２１】又、図５，図６に示すように、前記摺動レ
ール１２は左右の外端部１２Ｂを中央部１２Ａに対して
分割自在に構成すると共に、この外端部１２Ｂを前後向
き姿勢の支軸（図示せず）周りで揺動するアーム５５に
連結し、下面に摺動レール１２の中央部分に対して分割
部分が直線状となる姿勢に保持する固定機構（図示せ
ず）を備え、又、図１６に示すように、前記保護フレー
ム３３は前記ブラケット３２に対して前後向き姿勢の支
軸５７周りで揺動自在に支持され、該保護フレーム３３
を横方向に張り出す作業姿勢と上方に持ち上げた格納姿
勢とに保持する保持構造（図示せず）を備え、又、図１
０に示すように、縦送り軸２４は分割面Ｄの位置で分割
できるよう構成されると共に、夫々の分割面Ｄの位置に
互いに咬合する構造のジョイント５８を備えている。
又、図１７に示すように、前記ラインマーカ１８の基端
部分には、引き操作で該ラインマーカ１８を格納姿勢に
操作する操作ロッド５９の外端を該ラインマーカ１８の
基端位置に軸体６０を介して連結すると共に、この操作
ロッド５９をツールフレーム２７の側の中間部材６１の
孔部６１Ａに挿通状態に支持し、この操作ロッド５９の
内端に苗植付装置Ａの上昇時におけるリンク機構９の作
動力で引き操作力を作用させる操作ワイヤ６２をコイル
バネ６３を介して連結してあり、更に、操作ロッド５９
と中間部材６１との間に圧縮バネ６４を介装して格納操
作時の衝撃の吸収と非作用姿勢への切換え操作力を得る
よう構成されている。As shown in FIGS. 5 and 6, the slide rail 12 has left and right outer ends 12B which can be divided with respect to a central portion 12A, and the outer ends 12B are oriented in the front-rear direction. A fixing mechanism (not shown) which is connected to an arm 55 swinging around a support shaft (not shown) of FIG. As shown in FIG. 16, the protection frame 33 is swingably supported around a support shaft 57 in a front-rear direction with respect to the bracket 32.
1 is provided with a holding structure (not shown) for holding the work in a working posture in which it is laterally extended and a storage posture in which it is lifted upward.
As shown in FIG. 0, the vertical feed shaft 24 is configured to be able to be divided at the position of the division surface D, and includes a joint 58 having a structure that meshes with each of the positions of the division surface D.
As shown in FIG. 17, the outer end of an operation rod 59 for operating the line marker 18 in the retracted position by a pulling operation is pivotally attached to the base end of the line marker 18. The operation rod 59 is supported through the hole 61A of the intermediate member 61 on the side of the tool frame 27 while being connected through the body 60. , An operation wire 62 for applying a pulling operation force by the operation force of the link mechanism 9 is connected via a coil spring 63, and an operation rod 59
A compression spring 64 is interposed between the first member and the intermediate member 61 so as to absorb a shock at the time of the storing operation and to obtain a switching operation force to a non-operating position.

【００２２】そして、この田植機ではトラックの荷台に
搭載して運搬する場合には、リブ上面の３箇所のロック
機構Ｅの挟圧部材３７を非挟圧姿勢に操作してロック解
除を行い、又、反苗載せ面の側の上部位置のロック機構
Ｅのクランプ４２を緩め方向に操作して夫々の保持部材
３８の分離を図り、反苗載せ面の側の下部位置のロック
機構Ｅの操作ノブ４５Ｂの回動操作で回動軸４５のネジ
部４５Ａとナット４４との分離を図ることで苗載せ台１
１の両端の苗載せ部１１Ｂを取り外して図８，図９に示
す如く、分離した苗載せ部１１Ｂの反苗載せ面のガイド
レール３０をロッド材４８のゴム体４９に外嵌させてゴ
ム体４９の弾性力を利用した摩擦保持状態にし、苗載せ
部下部のガイド部材３１を支持体５１に乗せ付ける状態
で支持し、図１５（ロ）に示す如く、保持機構Ｇの操作
アーム５４の操作で押圧部材５３をガイド部材３１の上
面への接触で押圧させる姿勢に切換えることで、この苗
載せ部１１Ｂを中央の苗載せ部１１Ａに保持し、更に、
図４，図６に示すように、固定機構の固定解除操作で摺
動レール１２の左右の外端部を下方に折り曲げ、保持構
造の操作で保護フレーム３３を格納姿勢に切換えること
で苗植付装置Ａ全体の横方向への寸法を小さくして、苗
植付装置Ａ全体の横幅を荷台の幅に納まる寸法に縮小し
得るものとなっている。又、このように両端の苗載せ部
１１Ｂの分離を図った後に苗載せ台１１を元の形に復元
する場合には逆の操作を行うものとなる。When the rice transplanter is mounted on a truck bed and transported, the lock is released by operating the clamping members 37 of the three lock mechanisms E on the upper surface of the ribs in a non-clamping posture. Also, the clamps 42 of the lock mechanism E at the upper position on the side opposite to the seedling placing surface are operated in the loosening direction to separate the respective holding members 38, and the operation of the lock mechanism E at the lower position on the side opposite to the seedling placing surface is operated. By rotating the knob 45B to separate the screw portion 45A of the rotating shaft 45 from the nut 44, the seedling mounting table 1
8 and 9, the guide rail 30 on the anti-seedling mounting surface of the separated seedling mounting part 11B is fitted to the rubber body 49 of the rod member 48 to remove the rubber seedling. In the friction holding state using the elastic force of 49, the guide member 31 at the lower part of the seedling placing part is supported in a state of being placed on the support body 51, and the operation of the operation arm 54 of the holding mechanism G as shown in FIG. By switching the pressing member 53 to a position in which the pressing member 53 is pressed by contact with the upper surface of the guide member 31, the seedling placing portion 11B is held at the central seedling placing portion 11A, and further,
As shown in FIGS. 4 and 6, the left and right outer ends of the slide rail 12 are bent downward by the release operation of the fixing mechanism, and the protection frame 33 is switched to the retracted position by the operation of the holding structure to plant seedlings. The lateral size of the entire apparatus A can be reduced so that the overall width of the seedling planting apparatus A can be reduced to a size that can be accommodated in the width of the carrier. When the seedling rest 11 is restored to the original shape after separating the seedling rests 11B at both ends in this way, the reverse operation is performed.

【００２３】このように、本発明では苗載せ台１１の両
端位置の苗載せ部１１Ｂを中央の苗載せ部１１Ａの苗載
せ面１１Ｓの側に支持できるよう構成したことから、リ
ンク機構、ヒンジ等を介して両端位置に支持したまま該
苗載せ部１１Ｂの姿勢を切換えるものと比較して構造が
単純で製作が容易となると共に、中央の苗載せ部１１Ａ
に沿う姿勢で分離した苗載せ部１１Ｂを支持するので支
持される姿勢にも無理がなく、しかも、支持した苗載せ
部１１Ｂが固定状態に保持されるので安定した姿勢での
運搬が可能となり、又、中央の苗載せ部１１Ａに対して
分離した両端の苗載せ部１１Ｂを支持した状態で昇降レ
バー１９を誤って操作して苗載せ台１１が左右方向に駆
動されることがあっても分離した苗載せ部１１Ｂと中央
の苗載せ部１１Ａとが一体的に移動するので、従来例の
ように垂れ下がり姿勢の両端の苗載せ部１１Ｂが苗植付
装置Ａのフレーム等に接触する不都合を解消できるもの
となっている。As described above, in the present invention, since the seedling placing portions 11B at both ends of the seedling placing stand 11 can be supported on the side of the seedling placing surface 11S of the central seedling placing portion 11A, a link mechanism, a hinge, etc. The structure is simpler and easier to manufacture as compared with a configuration in which the posture of the seedling placing portion 11B is switched while being supported at both ends via the center, and the seedling placing portion 11A at the center is provided.
It supports the separated seedling placing part 11B in a posture along the natural posture, and the supported posture is reasonable.Moreover, since the supported seedling placing part 11B is held in a fixed state, it can be transported in a stable posture. In addition, even if the raising and lowering lever 19 is erroneously operated in a state where the seedling mounting part 11B at both ends separated from the center seedling mounting part 11A is supported, the seedling mounting base 11 may be driven in the left-right direction. Since the seedling placing portion 11B and the central seedling placing portion 11A move integrally, the disadvantage that the seedling placing portions 11B at both ends in the hanging posture contact the frame or the like of the seedling planting device A as in the conventional example is eliminated. It can be done.

【００２４】〔別実施の形態〕本発明は上記実施の形態
以外に、例えば、図１８に示すように、１０条植え用の
苗植付装置Ａに適用することが可能であり、この１０条
植え用の苗植付装置Ａの場合には、中央の６条分の苗載
せ部１１Ａに対して、両端の２条分の苗載せ部１１Ｂを
分離して前述と同様に中央の苗載せ部１１Ａの苗載せ面
１１Ｓの側に分離した苗載せ部１１Ｂを支持するものと
なる。[Another Embodiment] The present invention can be applied to a seedling planting apparatus A for ten rows as shown in FIG. 18, for example, as shown in FIG. In the case of the seedling planting apparatus A for planting, the two seedling placing portions 11B at both ends are separated from the central six seedling placing portions 11A, and the central seedling placing portion is formed in the same manner as described above. It supports the seedling mounting part 11B separated on the side of the seedling mounting surface 11S of 11A.

【００２５】又、本発明は中央の苗載せ部に両端の苗載
せ部を着脱自在に連結するロック機構として、ボルト・
ナットを用いた単純な構造を採用することが可能であ
り、又、支持機構を、中央の苗載せ部から後方に突設し
たピンと、分離される苗載せ部に対して備えられ、この
このピンが挿通する孔部を形成したプレートとで構成す
る等、係脱可能な構成を採用することが可能であり、
又、保持機構を、バネの圧力を用いた摩擦力で位置保持
を行う構造を採用することも可能である。The present invention also provides a locking mechanism for detachably connecting the seedling mounting portions at both ends to the center seedling mounting portion, wherein the locking mechanism includes a bolt
It is possible to adopt a simple structure using a nut, and a support mechanism is provided for a pin protruding rearward from a central seedling mounting part and a seedling mounting part to be separated, and this pin is provided. It is possible to adopt a detachable configuration, such as a configuration with a plate formed with a hole through which
It is also possible to adopt a structure in which the holding mechanism holds the position by a frictional force using the pressure of a spring.

【００２６】[0026]

【発明の効果】従って、複雑で大型となる構造を採用す
ることなく、単純で少ない部品点数でありながら苗載せ
台の両端部の幅の寸法だけ苗載せ台の横幅を小さくし得
る苗植付装置が合理的に構成された（請求項１）。又、
分離した苗載せ部を安定的に保持して外れ落ちを阻止し
（請求項２）、作業時には中央の苗載せ部と端部の苗載
せ部とを強力に連結するものとなる（請求項３）。According to the present invention, there is provided a seedling plant which can reduce the lateral width of the seedling mounting base by the width of both end portions of the seedling mounting base with a simple and small number of parts without employing a complicated and large-sized structure. The device was rationally configured (Claim 1). or,
The separated seedling placing portion is stably held to prevent the seedling placing portion from falling off (claim 2), and the work is to strongly connect the seedling placing portion at the center and the seedling placing portion at the end during work (claim 3). ).

【図面の簡単な説明】[Brief description of the drawings]

【図１】田植機の全体側面図FIG. 1 is an overall side view of a rice transplanter.

【図２】苗植付装置を側面図FIG. 2 is a side view of the seedling planting apparatus.

【図３】苗植付装置の平面図FIG. 3 is a plan view of the seedling planting apparatus.

【図４】左右両端の苗載せ部を分離して中央の苗載せ部
に支持した平面図FIG. 4 is a plan view in which the seedling mounting portions at both left and right ends are separated and supported by a central seedling mounting portion.

【図５】苗載せ台の左側の端部の正面図FIG. 5 is a front view of a left end portion of the seedling mounting table.

【図６】左側の苗載せ部を分離した状態の苗載せ台の左
端部の正面図FIG. 6 is a front view of the left end portion of the seedling mounting stand with the left seedling mounting portion separated.

【図７】左側の苗載せ部を分離した状態の苗載せ台の左
端部の後面図FIG. 7 is a rear view of the left end portion of the seedling mounting stand in a state where the left seedling mounting portion is separated.

【図８】分離した苗載せ部を支持部に支持する操作時の
側面図FIG. 8 is a side view at the time of an operation of supporting the separated seedling mounting portion on the support portion.

【図９】分離した苗載せ部を支持部に支持した状態の側
面図FIG. 9 is a side view of a state where the separated seedling placing portion is supported by a supporting portion.

【図１０】苗載せ部が連結した状態と、分離した状態と
における縦送り軸の連結構造と反苗載せ面の側下部のロ
ック機構との断面図FIG. 10 is a cross-sectional view of a connection structure of a vertical feed shaft and a lock mechanism at a lower portion of a side opposite to a seedling mounting surface in a state where a seedling mounting portion is connected and a state where the seedling mounting portion is separated.

【図１１】反苗載せ面の側上部のロック機構の斜視図FIG. 11 is a perspective view of a lock mechanism on the upper side of the anti-seedling mounting surface.

【図１２】苗載せ面の側上部のロック機構の側面図及び
断面図FIG. 12 is a side view and a cross-sectional view of a lock mechanism on an upper side of a seedling mounting surface.

【図１３】苗載せ面の側中間部のロック機構の側面図FIG. 13 is a side view of a lock mechanism at a side intermediate portion of the seedling mounting surface.

【図１４】苗載せ面の側下部のロック機構の側面図FIG. 14 is a side view of the lock mechanism at the lower side of the seedling mounting surface.

【図１５】非押圧状態と、押圧状態とにおける下部位置
の支持部の平面図FIG. 15 is a plan view of a support portion at a lower position in a non-pressed state and a pressed state.

【図１６】作業姿勢と格納姿勢とにおける保護フレーム
の基端部の斜視図FIG. 16 is a perspective view of a base end of the protection frame in a working posture and a storage posture.

【図１７】マーカの基端部の支持構造を示す断面図FIG. 17 is a cross-sectional view showing a support structure of a base end portion of the marker.

【図１８】別実施の形態の模式図FIG. 18 is a schematic view of another embodiment.

【符号の説明】[Explanation of symbols]

１１ 苗載せ台 １１Ａ 中央の苗載せ部 １１Ｂ 左右両端の苗載せ部 １１Ｓ 苗載せ面 Ｅ ロック機構 Ｆ 支持部 Ｇ 保持機構 Ｗ 苗 11 Seedling stand 11A Seedling placing part in center 11B Seedling placing parts on both right and left sides 11S Seedling placing surface E Lock mechanism F Supporting part G Holding mechanism W Seedling

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 苗を載置して往復横移動する苗載せ台
と、苗載せ台の横移動に伴って苗載せ台に載置された苗
を切出して圃場面に植付ける植付け機構とを備えて複数
条用に構成された乗用型田植機の苗植付装置であって、 前記苗載せ台を、苗載せ台の中央の苗載せ部に対して左
右両端の苗載せ部を連結する状態と分離する状態とに切
換え自在に構成すると共に、中央の苗載せ部の苗載せ面
の側の上部位置と下部位置とに、分離状態の苗載せ部の
上部位置と下部位置とを受止め支持する支持部を形成し
てある乗用型田植機の苗植付装置。1. A seedling table on which seedlings are placed and which reciprocate and laterally move, and a planting mechanism for cutting out the seedlings placed on the seedling table with the lateral movement of the seedling table and planting the seedlings in a field scene. A seedling planting device for a riding type rice transplanter provided for a plurality of rows, wherein the seedling stage is connected to a seedling stage at both left and right ends with a central seedling stage at the seedling stage. It is configured to be freely switchable to be separated from the seedling mounting part, and receives and supports the upper position and the lower position of the separated seedling mounting part at the upper position and the lower position on the side of the seedling mounting surface of the central seedling mounting part. A seedling planting device for a riding type rice transplanter having a supporting portion formed thereon. 【請求項２】 前記支持部に支持した苗載せ部を、中央
の苗載せ部に対して固定する保持機構を備えている請求
項１記載の乗用型田植機の苗植付装置。2. The seedling placement apparatus for a riding type rice transplanter according to claim 1, further comprising a holding mechanism for fixing the seedling placing portion supported by the support portion to a central seedling placing portion. 【請求項３】 前記中央の苗載せ部に対して端部の苗載
せ部を連結するためのロック機構を苗載せ台の苗載せ面
の側と、反苗載せ面の側とに備えている請求項１又は２
記載の乗用型田植機の苗植付装置。3. A lock mechanism for connecting an end seedling mounting portion to the center seedling mounting portion is provided on the side of the seedling mounting surface of the seedling mounting table and on the side of the anti-seedling mounting surface. Claim 1 or 2
A seedling planting device for a riding type rice transplanter according to the above.