【０００１】
【発明の属する技術分野】
本発明は例えば白ネギ（根深ネギ）などの苗を移植する野菜移植機に関する。
【０００２】
【従来の技術】
従来、苗載台から苗取爪によって取出した苗を、植付爪に受け継いだ圃場に植付けると共に、左右の走行輪を昇降自在に装設させる技術がある。（例えば特許文献１参照）
【０００３】
【特許文献１】特開平５−２３６８０８号公報
【０００４】
【発明が解決しようとする課題】
前記従来技術は、例えば白ネギのように予め形成した溝の内部に苗を植え付ける作業を行う場合、機体を上昇させた状態で作業を途中で中断したとき、昇降バルブから昇降シリンダの油が抜けて機体が下降する等の問題がある。
【０００５】
【課題を解決するための手段】
然るに、本発明は、請求項１の如く、機体の対地高さを変更させる昇降シリンダ及び昇降バルブと、昇降バルブを閉にして昇降動作を注しさせるロックレバーとを設ける野菜移植機において、取付け方向が機体上面側になるように前記ロックレバーを設けるもので、機体の左右両方及び斜め後方などからロックレバーの操作を行い得、ロックレバーの操作位置が限定される等の不具合をなくし得、しかもボンネットを離脱させて行うメンテナンスなどの作業がロックレバーによって制限される不具合をなくし得るものである。
【０００６】
また、請求項２の如く、ロックレバーを設けるレバーホルダと、ロックレバーのストッパとを一体構造にするもので、ロックレバー部のカバーを取外してもロックレバーが機能して油圧停止維持を確実に行い得、かつロックレバーの開と閉位置の両方のストッパをレバーホルダの一部によって形成し得、ロックレバー部の構成部品数を削減してコスト低下などを図り得るものである。
【０００７】
また、請求項３の如く、ボンネットの切欠を介してロックレバーの操作部をボンネット上方に突出させるもので、ロックレバーの銘板貼付またはレバーガイド溝の形成などにボンネットを利用し得、かつボンネットの周辺のいずれの方向からもロックレバーの操作並びに切換位置の確認を行い得るものである。
【０００８】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図１は前面斜視図、図２は全体側面図、図３は同平面図、図４及び図５は正面図であり、図中１はエンジン２を搭載する前車体フレーム、３は前車体フレーム１後側に連設する後車体フレーム、４は後車体フレーム３下側に設ける走行伝動ケース、５は前記走行伝動ケース４にアクスルケース６を介し上下揺動可能に支持する左右の走行輪、７は前記後車体フレーム３の後方にハンドルフレーム８を介して装設する苗載台、９は左右の走行輪５間で前記走行伝動ケース４に植付ケース１０を介して装設する苗植付爪、１１は前車体フレーム１下側に装設する前輪、１２は苗に覆土する覆土輪、１３は左右往復移動する苗載台７上の苗トレイかせら１株分のポット形白ネギ苗を苗取出爪、苗取出爪１３によって取出された白ネギ苗を植付爪９に放出供給し、ハンドルフレーム８後側の操向ハンドル１４操作による機体の走行中、前輪１１を移動させる溝１５内部に略、一定間隔で白ネギ苗を植付ける移植作業を行うように構成している。
【０００９】
また、図中１６はボンネット、１７・１８・１９はボンネット１６の両側に略左右対称に設ける上側及び下側及び前側予備苗台、２０は操向ハンドル１４の左側に設ける走行変速レバー、２１はハンドル１４の右側に設ける主クラッチレバー、２２はハンドル１４の右側に設ける油圧昇降レバー、２３は植付爪９の植付位置前方の溝１５内部を作溝する作溝機、２４は左右のアクスルケース６を揺動させて左右の走行輪５を昇降させる油圧昇降シリンダである。
【００１０】
さらに、前車体フレーム１の後側と後車体フレーム３を走行伝動ケース４にボルト止め固定させ、該ケース４両側にアクスルケース６を介して走行輪５を支持させ、前車体フレーム１下面に設ける昇降シリンダ２４をアクスルケース６に連結させ、昇降レバー２０操作によってシリンダ２４を作動させて走行輪５を昇降させ、溝１５に苗を植付ける移植作業時、図５のように走行輪５を高位置に上昇させ、前輪１１を溝１５内部で移動させ、溝５両側の畝２５上面に走行輪５を移動させ、左右いずれか一方の走行輪５後方の畝２５上面を作業者が歩行移動し、白ネギなどの苗移植を行う。また、図２のように、圃場枕地での旋回または路上走行のとき、走行輪５と前輪１１が略同一高さ路面となり、走行輪５の接地面に対して略一定高さｈ１だけ覆土輪１２が地上に持ち上げられるもので、畝２５の高さよりも覆土輪１２が高くｈ１持上げられて接地することを抑制でき、枕地旋回のときに覆土輪１２が畝２５に当たって崩す等の不具合をなくしている。
【００１１】
また、図１乃至図７に示す如く、後車体フレーム３の前側上面に昇降ポンプ２６を載置させ、後車体フレーム３の後側上面に苗取伝動ケース２７を載置させ、後車体フレーム３下面の走行伝動ケース４にエンジン２をベルト２８伝動させ、前記ケース４から苗取伝動ケース２７にベルト２９伝動させ、エンジン２から昇降ポンプ２６にベルト３０伝動させ、左右の走行輪５と植付爪９と苗取出爪１３を駆動し、左右に往復動させる苗載台７の苗を連続的に溝１５内部に植付ける。
【００１２】
さらに、前記昇降ポンプ２６に油圧昇降バルブ３１を設け、ハンドル１４右側の昇降レバー２２によってバルブ３１を切換え、昇降シリンダ２４を作動させて走行輪５を昇降させ、車体フレーム１・３など本機の対地高さを変化させると共に、前記バルブ３１を切換え可能状態と閉維持状態に切換える昇降ロックレバー３２を昇降ポンプ２６上面にレバーホルダ３３を介して設け、前記昇降ポンプ２６及び苗取伝動ケース２７の上側を覆うボンネット１６のレバーガイド溝３４を介して、ボンネット１６の下面側から上面側にロックレバー３２を突出させ、ロックレバー３２の前方傾倒により、昇降レバー２２によってバルブ３１を開閉切換え可能（油圧オープン）な状態に切換える一方、ロックレバー３２の後方傾倒により、昇降レバー２２によるバルブ３１の切換えを禁止してバルブ３１を閉（油圧ロック）に保つ閉維持（ストップ）状態に切換えると共に、ロックレバー３２を前方傾倒させたときに該レバー３２を当接させる開閉ストッパ３４と、ロックレバー３２を後方傾倒させたときに該レバー３２を当接させる閉ストッパ３５とを、鈑金製の前記レバーホルダ３３に一体形成する。
【００１３】
上記から明らかなように、機体の対地高さを変更させる昇降シリンダ２４及び昇降バルブ２６と、昇降バルブ２６を閉にして昇降動作を中止させるロックレバー３２とを設ける野菜移植機において、取付け方向が機体上面側になるように前記ロックレバー３２を設ける。そして、機体の左右両方及び、斜め後方などからロックレバー３２の操作を行い、ロックレバー３２の操作位置が限定される等の不具合をなくし、しかもボンネット１６を離脱させて行うメンテナンス等の作業がロックレバー３２によって制限される不具合をなくす。
【００１４】
また、ロックレバー３２を設けるレバーホルダ３３と、ロックレバー３２のストッパ３４・３５とを一体構造にし、ロックレバー３２部のカバーを取外してもロックレバー３２が機能して油圧停止維持を確実に行い、かつロックレバー３２の開と閉位置の両方のストッパ３４・３５をレバーホルダ３３の一部によって形成し、ロックレバー３２部の構成部品数を削減してコスト低下などを図ると共に、
ボンネット１６の切欠を介してロックレバー３２の操作部をボンネット１６上方に突出させ、ロックレバー３２の銘板貼付またはレバーガイド溝３４の形成などにボンネット１６を利用し、かつボンネット１６の周辺のいずれの方向からもロックレバー３２の操作並びに切換え位置の確認を行える。
【００１５】
さらに、図１乃至図５、図８乃至図１２に示す如く、ハンドルフレーム８に下苗台ベース３６を設け、該ベース３６に苗台フレーム３７をボルト３８止め固定させ、苗台フレーム３７に下側の予備苗台１８を支持させる。また、ハンドルフレーム８に延長ベース３９を設け、該ベース３９に延長フレーム４０をボルト４１止め固定させ、延長フレーム４０の上端側に上苗台ベース４２を設け、該ベース４２に苗台フレーム４３をボルト４４止め固定させ、苗台フレーム４３に上側の予備苗台１７を支持させる。また、下側の予備苗台１８に対して上側の予備苗台１７を、平面視で、機体内方側に一定寸法（Ａ）ずらせ、かつ機体前方側に一定寸法（Ｂ）ずらせ、同一仕様形状の苗台フレーム３７・４３を介して同一仕様形状の上下側の予備苗台１７・１８を上下二段に設ける。また、前車体フレーム１に前パイプバンパ４５を固定させ、該バンパ４５に前苗台ベース４６を設け、回動及び着脱自在に支点軸４７を介して前記ベース４６に苗台フレーム４８を設け、苗台フレーム４８に前側の予備苗台１９を支持させ、前苗台ベース４６の円弧形長孔４９と蝶ボルト５０を介してベース４６に苗台フレーム４８を支点軸４７回りに回転自在に固定させ、図１２の実線のように、エンジン２前面に対して一定寸法（Ｃ）突出させた状態で前側予備苗台１９を略水平に支持させて予備苗を載せる一方、図１２の仮想線のように、前側予備苗台１９を後方に回転させて略垂直に支持させてエンジン２の側方で後方側に格納させる。
【００１６】
上記から明らかなように、ボンネット１６の下側に走行輪５を設け、ボンネット１６後側に操向ハンドル１４を装設させ、操向ハンドル１４の上側に苗載台７を設け、ボンネット１６側方で上下に予備苗台を１７・１８を設ける野菜移植機において、上側の予備苗台１７に対して下側の予備苗台１８を外側に設ける。そして、上下の予備苗台１７・１８を左右にずらせることにより、苗の干渉を避けるために上下の設置間隔を拡大するのに比べ、低重心で機体の安定性を向上させ、かつ予備苗の出入またはボンネット１６の取外し等の作業性を向上させる。
【００１７】
また、上下の予備苗台１７・１８の前側に同一仕様の前側予備苗台１９を設け、上下と前側の予備苗台１７・１８・１９の構成部品を共用することにより、上下２段で一体形の従来の予備苗台構造に比べて製造コストを低減させ、組立及びメンテナンス等の作業性を向上させると共に、前後に予備苗台１８・１９を設け、前後方向の作業姿勢と上下方向の格納姿勢とに前側の予備苗台１９を回転自在に設け、例えば略水平な作業姿勢の前側の予備苗台１９が機体前方に突出しても、略垂直な格納姿勢に前記予備苗台１９を回転させることにより、機体の全長を短くしてトラック荷台に載せて運搬したり狭少場所に格納する等の作業を容易に行える。また、機体全高も予備苗台１７・１７より高くならないのである。
【００１８】
さらに、図５、図１３乃至図１８に示す如く、作業車が追従歩行して圃場を往復走行し、複数条の溝１５にネギ苗を移植するもので、走行伝動ケース４の植付動力を植付ケース１０に入力軸５１を介して伝え、かつ入力軸５１の回りに植付ケース１０を回転自在に設けると共に、植付爪９の昇降及び姿勢制御の各動作を行わせる出力軸５２を植付ケース１０に設け、植付爪９が溝１５内部の土中に突入して苗を植付けるとき、入力軸５１に対して出力軸５２が一定寸法（Ｄ）低くなるように、植付ケース１０が後傾姿勢に傾斜する。
【００１９】
そして、左右の走行輪５の間で前後に近接させて植付爪９と覆土輪を設け、予め形成した植付け溝１５の内部に苗を植付ける野菜移植機において、鎮圧機能を有する前輪１１を機体前側に設け、苗の植付け位置を除いて植付け溝１５内部を前輪１１によって鎮圧させ、植付け溝内の前輪１１がガイドとなって溝１５に沿って移植させ、例えば作業車がハンドル１４から手を放しても蛇行走行を防いで安定した移植作業を行わせると共に、走行させる植付け溝１５の内部を左右に分けて両側を左右前輪１１によって鎮圧させ、前輪１１による鎮圧面を左右に分割することによって苗の植付け位置が前輪１１によって鎮圧されることがなく、植付爪９の土中突入抵抗を低減させ、苗の植付け深さを適正に維持させるもので、植付爪９を設ける植付ケース１０を、入力軸５よりも出力軸５２が低くなるように傾斜させて設け、植付けケース１０の出力軸５２が苗の植付け土面に近くなり、植付け溝１５の内部に苗を植付ける植付爪９構造を容易に得られる。また、左右の前輪１１の内側の左右幅に対して左右の覆土輪１２の内側の左右幅を小さく形成し、前面視で植付爪９を中心に左右の前輪１１と左右の覆土輪１２を左右対称に設け、苗の覆土を十分に行わせる。
【００２０】
さらに、図１９に示す如く、機体の前後方向の中心線（Ｆ）に対して苗載台７の左右移動用レール５５を右側長さ（Ｌ１）に対して左側長さ（Ｌ２）を長く形成し、苗載台７の左側面に苗縦送り駆動部５６を設け、該部５６の組付け及びメンテナンス等の作業性を向上させると共に、図４のように、左右の走行輪５を略一定間隔に保つように構成し、左右の走行輪５、左右の前輪１１、左右の覆土輪１２、左右の予備苗台１７・１８・１９を、機体の中心線Ｆに対して左右対称に設け、また中心線Ｆ上に植付爪９を設け、機体の左右方向の重量バランスを適正に保ち、機体の左右ローリングを低減して軟弱路面での安定走行並びに苗の移植姿勢及び植付け深さの均一維持などを図る。
【００２１】
さらに、図１９、図２０に示す如く、前記ボンネット１６を鈑金曲げとスポット溶接によって加工形成し、プレス加工の金型を不要にしてコスト低減を行うと共に、本機から苗載台７側に動力を伝えるチェンのチェンカバー５７をハンドルフレーム８にボルト５８止め固定させ、ボンネット７に対してカバー５７を別体とし、調節並びにメンテナンス等を行うとき、カバー５７一体型に比べて小型軽量化されるボンネット７を容易に脱着させることができる。また、図２，図１９に示す如く、取出爪１３上方のボンネット１６に透明なドーム形の窓５９を設け、作業車がボンネット１６上方から下側の取出爪１３部を窓から目視可能にしている。
【００２２】
【発明の効果】
以上実施例から明らかなように本発明は、請求項１の如く、機体の対地高さを変更させる昇降シリンダ２４及び昇降バルブ２６と、昇降バルブ２６を閉にして昇降動作を中止させるロックレバー３２とを設ける野菜移植機において、取付け方向が機体上面側になるように前記ロックレバー３２を設けるもので、機体の左右両方及び斜め後方などからロックレバー３２の操作を行うことができ、ロックレバー３２操作位置が限定される等の不具合をなくすことができ、しかもボンネット１６を離脱させて行うメンテナンス等の作業がロックレバー３２によって制限される不具合をなくすことができるものである。
【００２３】
また、請求項２の如く、ロックレバー３２を設けるレバーホルダ３３と、ロックレバー３２のストッパ３４・３５とを一体構造にするもので、ロックレバー部のカバーを取外してもロックレバーが機能して油圧停止維持を確実に行うことができ、かつロックレバー３２の開と閉位置の両方のストッパ３４・３５をレバーホルダ３３の一部によって形成でき、ロックレバー３２部の構成部品数を削減してコスト低下などを図ることができるものである。
【００２４】
また、請求項３の如く、ボンネット１６の切欠を介してロックレバー３２の操作部をボンネット１６上方に突出させるもので、ロックレバー３２の銘板貼付またはレバーガイド溝３４の形成などにボンネット１６を利用でき、かつボンネット１６の周辺のいずれの方向からもロックレバー３２の操作並びに切換え位置の確認を行うことができるものである。
【図面の簡単な説明】
【図１】全体の斜視図。
【図２】同側面図。
【図３】同平面図。
【図４】同正面図。
【図５】同正面説明図。
【図６】油圧ポンプ部の斜視図。
【図７】同拡大図。
【図８】予備苗台部の正面図。
【図９】同平面図。
【図１０】同斜視図。
【図１１】同拡大図。
【図１２】同側面説明図。
【図１３】植付爪部の背面図。
【図１４】同拡大図。
【図１５】同部分図。
【図１６】同部分正面図。
【図１７】移植作業説明図。
【図１８】植付ケース部の側面図。
【図１９】苗載台前部の平面図。
【図２０】ボンネット後部の側図。
【符号の説明】
１６ ボンネット
２４ 昇降シリンダ
２６ 昇降バルブ
３２ ロックレバー
３４・３５ スットッパ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vegetable transplanter for transplanting seedlings such as white leek (nepaku-negi).
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a technique in which a seedling taken out from a seedling mounting table by a seeding claw is planted in a field inherited by a planting claw, and left and right running wheels are mounted so as to be able to move up and down. (For example, see Patent Document 1)
[0003]
[Patent Document 1] JP-A-5-236808
[Problems to be solved by the invention]
In the prior art, for example, when performing an operation of planting seedlings in a groove formed in advance such as white leek, when the operation is interrupted in the state where the body is raised, oil in the lifting cylinder comes off from the lifting valve. There is a problem that the aircraft descends.
[0005]
[Means for Solving the Problems]
Therefore, the present invention provides a vegetable transplanting machine provided with a lifting cylinder and a lifting valve for changing the height of the body above ground, and a lock lever for closing the lifting valve and injecting the lifting operation. The lock lever is provided so that the direction is on the upper surface side of the fuselage, the lock lever can be operated from both the left and right sides of the fuselage and obliquely rearward, and the disadvantage that the operation position of the lock lever is limited can be eliminated, Moreover, it is possible to eliminate the problem that the work such as maintenance performed by detaching the hood is restricted by the lock lever.
[0006]
Further, as in claim 2, the lever holder for providing the lock lever and the stopper of the lock lever are integrally formed, so that even if the cover of the lock lever portion is removed, the lock lever functions to reliably maintain the hydraulic stop. This can be performed, and both stoppers of the open and closed positions of the lock lever can be formed by a part of the lever holder, so that the number of components of the lock lever portion can be reduced to reduce costs and the like.
[0007]
Further, the operating portion of the lock lever is projected upward through the notch of the bonnet through the notch of the bonnet, so that the bonnet can be used for attaching a nameplate of the lock lever or forming a lever guide groove, and the like. The operation of the lock lever and the confirmation of the switching position can be performed from any direction in the periphery.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a front perspective view, FIG. 2 is an overall side view, FIG. 3 is a plan view of the same, FIGS. 4 and 5 are front views, wherein 1 is a front body frame on which an engine 2 is mounted, and 3 is a front body frame. 1 a rear body frame continuously provided on the rear side; 4 a traveling transmission case provided below the rear body frame 3; 5 left and right traveling wheels which are supported on the traveling transmission case 4 via an axle case 6 so as to be vertically swingable; Numeral 7 is a seedling mounting table mounted behind the rear body frame 3 via a handle frame 8, and 9 is a seedling mounted between the left and right traveling wheels 5 in the traveling transmission case 4 via a planting case 10. Nail, 11 is a front wheel mounted on the lower side of the front body frame 1, 12 is a covering ring for covering the seedlings, 13 is a pot-shaped white leek for one seedling scalar seedling tray on the seedling mounting table 7 which reciprocates right and left. The seedlings are taken out of the seedlings, and the white onion seedlings taken out by the seeding nails 13 are put into the planting nails 9. During the running of the machine by operating the steering handle 14 on the rear side of the handle frame 8, the transplant operation of planting white leek seedlings at substantially regular intervals inside the groove 15 for moving the front wheel 11 is performed. I have.
[0009]
In the figure, 16 is a bonnet, 17, 18 and 19 are upper, lower and front spare seedling stands provided substantially symmetrically on both sides of the bonnet 16, 20 is a traveling speed change lever provided on the left side of the steering handle 14, 21 is A main clutch lever provided on the right side of the handle 14, a hydraulic lifting lever 22 provided on the right side of the handle 14, a groove machine 23 for forming the inside of the groove 15 in front of the planting position of the planting claw 9, and a left and right axle It is a hydraulic lifting cylinder that swings the case 6 to raise and lower the left and right traveling wheels 5.
[0010]
Further, the rear side of the front body frame 1 and the rear body frame 3 are bolted and fixed to the traveling transmission case 4, and the traveling wheels 5 are supported on both sides of the case 4 via the axle case 6 and provided on the lower surface of the front body frame 1. When the lifting cylinder 24 is connected to the axle case 6, the traveling wheel 5 is raised and lowered by operating the cylinder 24 by operating the lifting lever 20, and the traveling wheel 5 is raised as shown in FIG. Position, the front wheel 11 is moved inside the groove 15, the running wheel 5 is moved to the upper surface of the ridge 25 on both sides of the groove 5, and the worker walks on the upper surface of the ridge 25 behind one of the left and right running wheels 5. Transplant seedlings such as white onions. Also, as shown in FIG. 2, when turning or traveling on a road in a field headland, the running wheel 5 and the front wheel 11 have a road surface of substantially the same height, and cover the ground surface of the running wheel 5 by a substantially constant height h1. Since the wheel 12 is lifted to the ground, the covering wheel 12 can be restrained from being lifted up by h1 higher than the height of the ridge 25 to make contact with the ground, and such a problem that the covering wheel 12 hits the ridge 25 and breaks during headland turning. Lost.
[0011]
Also, as shown in FIGS. 1 to 7, an elevating pump 26 is mounted on the front upper surface of the rear body frame 3, and a seedling transfer case 27 is mounted on the rear upper surface of the rear body frame 3. The belt 28 is transmitted from the case 4 to the seedling transmission case 27, the belt 30 is transmitted from the engine 2 to the lifting pump 26, and the right and left traveling wheels 5 are planted. The claw 9 and the seedling removal claw 13 are driven, and the seedlings of the seedling mounting table 7 to be reciprocated right and left are continuously planted in the groove 15.
[0012]
Further, a hydraulic elevating valve 31 is provided on the elevating pump 26, the valve 31 is switched by the elevating lever 22 on the right side of the handle 14, and the elevating cylinder 24 is operated to elevate the traveling wheel 5 so that the body frame 1, 3, etc. An elevating lock lever 32 for changing the ground height and switching the valve 31 between a switchable state and a closed maintenance state is provided on the upper surface of the elevating pump 26 via a lever holder 33, and the elevating pump 26 and the seedling collecting transmission case 27 The lock lever 32 is projected from the lower surface of the bonnet 16 to the upper surface through the lever guide groove 34 of the bonnet 16 covering the upper side, and the valve 31 can be switched between open and closed by the lifting lever 22 by tilting the lock lever 32 forward (hydraulic pressure). (Open) state, while the lock lever 32 is tilted rearward, the lifting lever 2 The switching of the valve 31 is prohibited and the valve 31 is switched to a closed maintenance (stop) state in which the valve 31 is kept closed (hydraulic lock), and when the lock lever 32 is tilted forward, the opening / closing stopper 34 for contacting the lever 32 is provided. And a closing stopper 35 for contacting the lock lever 32 when the lock lever 32 is tilted rearward is integrally formed with the lever holder 33 made of sheet metal.
[0013]
As is apparent from the above description, in the vegetable transplanting machine provided with the lifting cylinder 24 and the lifting valve 26 for changing the ground height of the body and the lock lever 32 for closing the lifting valve 26 and stopping the lifting operation, the mounting direction is The lock lever 32 is provided so as to be on the upper surface side of the fuselage. Then, the lock lever 32 is operated from both the left and right sides of the fuselage and obliquely rearward, thereby eliminating problems such as the operation position of the lock lever 32 being limited. The problem limited by the lever 32 is eliminated.
[0014]
Further, the lever holder 33 provided with the lock lever 32 and the stoppers 34 and 35 of the lock lever 32 are integrally formed so that even if the cover of the lock lever 32 is removed, the lock lever 32 functions to reliably maintain the hydraulic stop. In addition, the stoppers 34 and 35 at both the open and closed positions of the lock lever 32 are formed by a part of the lever holder 33 to reduce the number of components of the lock lever 32 and reduce costs.
The operating portion of the lock lever 32 is protruded above the bonnet 16 through the cutout of the bonnet 16, and the bonnet 16 is used for attaching the nameplate of the lock lever 32 or forming the lever guide groove 34, and any of the portions around the bonnet 16. The operation of the lock lever 32 and the confirmation of the switching position can be performed from the direction.
[0015]
Further, as shown in FIGS. 1 to 5 and FIGS. 8 to 12, a lower seedling stand base 36 is provided on the handle frame 8, and a seedling stand frame 37 is fixed to the base 36 with bolts 38. The auxiliary seedling stand 18 on the side is supported. An extension base 39 is provided on the handle frame 8, an extension frame 40 is fixed to the base 39 by bolts 41, an upper seedling base 42 is provided on the upper end side of the extension frame 40, and a seedling frame 43 is attached to the base 42. The bolts 44 are fixed and fixed, and the seedling stand frame 43 supports the upper spare seedling stand 17 on the upper side. In addition, the upper spare seedling stand 17 is shifted by a certain size (A) toward the inside of the machine and a certain size (B) toward the front of the machine in plan view, with respect to the lower spare seedling 18. Upper and lower spare seedling stands 17 and 18 of the same specification shape are provided in two upper and lower stages via the seedling stand frames 37 and 43 having the same shape. Further, a front pipe bumper 45 is fixed to the front vehicle body frame 1, a front seedling stand base 46 is provided on the bumper 45, and a seedling stand frame 48 is provided on the base 46 via a fulcrum shaft 47 so as to be rotatable and detachable. The spare seedling stand 19 on the front side is supported by the stand frame 48, and the seedling stand frame 48 is rotatably fixed to the base 46 via the arc-shaped long hole 49 and the wing bolt 50 of the front seedling stand base 46 around the fulcrum shaft 47. As shown by the solid line in FIG. 12, the front spare seedling stand 19 is supported substantially horizontally with the front spare seedling stand 19 protruding from the front surface of the engine 2 by a predetermined size (C), and the spare seedling is placed. As described above, the front spare seedling stand 19 is rotated rearward to be supported substantially vertically, and is stored at the rear side of the engine 2.
[0016]
As is apparent from the above, the traveling wheel 5 is provided below the hood 16, the steering handle 14 is provided on the rear side of the hood 16, and the seedling mounting table 7 is provided above the steering handle 14, In a vegetable transplanter in which spare seedling stands 17 and 18 are provided on the upper and lower sides, a lower spare seedling stand 18 is provided outside the upper spare seedling stand 17. By shifting the upper and lower spare seedling stands 17 and 18 to the left and right, the stability of the machine is improved at a low center of gravity, and the spare Workability, such as in / out of the vehicle or removal of the bonnet 16, is improved.
[0017]
In addition, a front spare seedling stand 19 of the same specifications is provided in front of the upper and lower spare seedling stands 17 and 18, and the components of the upper and lower spare seedling stands 17, 18 and 19 are shared, so that the upper and lower spare seedling stands 17 and 18 are integrated in two stages. Compared with the conventional spare nursery structure, the manufacturing cost is reduced, workability such as assembling and maintenance is improved, and spare seedlings 18 and 19 are provided at the front and rear, so that the working posture in the front-back direction and the storage in the up-down direction are provided. The spare seedlings 19 on the front side are rotatably provided in the posture, for example, even if the spare seedlings 19 on the front side in a substantially horizontal working posture protrude forward of the fuselage, the spare seedlings 19 are rotated to the substantially vertical storage posture. This facilitates operations such as shortening the overall length of the body and carrying it on a truck bed or storing it in a narrow place. In addition, the overall height of the aircraft is not higher than the spare seedling stands 17.
[0018]
Further, as shown in FIGS. 5 and 13 to 18, the work vehicle follows and walks, reciprocates in the field, and transplants green onion seedlings into the plurality of grooves 15. An output shaft 52 is provided to the planting case 10 via the input shaft 51, and the planting case 10 is rotatably provided around the input shaft 51, and an output shaft 52 for performing each operation of raising and lowering the posture and posture control of the planting claw 9 is provided. When the planting claw 9 is provided in the planting case 10 and the planting claw 9 protrudes into the soil inside the groove 15 to plant a seedling, the planting is performed such that the output shaft 52 is lower than the input shaft 51 by a certain dimension (D). The case 10 tilts to the rearward tilting posture.
[0019]
The planting claw 9 and the earth covering ring are provided close to each other between the left and right running wheels 5 in the front and rear directions, and the front wheel 11 having a pressure suppression function is provided by a vegetable transplanting machine in which seedlings are planted in the previously formed planting grooves 15. Provided on the front side of the fuselage, the inside of the planting groove 15 is crushed by the front wheel 11 except for the planting position of the seedlings, and the front wheel 11 in the planting groove serves as a guide and is transplanted along the groove 15. To prevent the meandering running even if the vehicle is released, to perform a stable transplanting operation, to divide the inside of the planting groove 15 to be moved into right and left, to suppress both sides by the left and right front wheels 11, and to divide the pressure suppressing surface by the front wheel 11 into left and right. Therefore, the planting position of the seedlings is not suppressed by the front wheel 11, the resistance of the planting claws 9 into the soil is reduced, and the planting depth of the seedlings is properly maintained. The source 10 is provided so as to be inclined such that the output shaft 52 is lower than the input shaft 5, and the output shaft 52 of the planting case 10 is close to the seedling planting soil surface, so that the seedling is planted inside the planting groove 15. The structure of the planting nail 9 can be easily obtained. Further, the left and right inner widths of the left and right earth covering wheels 12 are formed smaller than the left and right inner widths of the left and right front wheels 11, and the left and right front wheels 11 and the left and right earth covering wheels 12 are centered on the planting claws 9 in a front view. It is provided symmetrically so that the seedlings are covered sufficiently.
[0020]
Further, as shown in FIG. 19, the left and right moving rails 55 of the seedling mounting table 7 are formed to have a longer left side length (L2) than the right side length (L1) with respect to the center line (F) in the longitudinal direction of the body. A seedling vertical feed drive unit 56 is provided on the left side surface of the seedling mounting table 7 to improve workability such as assembling and maintenance of the unit 56, and as shown in FIG. The left and right running wheels 5, the left and right front wheels 11, the left and right earth covering wheels 12, and the left and right spare seedling stands 17, 18, and 19 are provided symmetrically with respect to the center line F of the fuselage. In addition, planting claws 9 are provided on the center line F to maintain the right and left weight balance of the body properly, reduce the left and right rolling of the body, stably run on soft roads, and uniform the seedling transplanting posture and planting depth. Maintain and maintain.
[0021]
Further, as shown in FIGS. 19 and 20, the bonnet 16 is formed by sheet metal bending and spot welding to reduce the cost by eliminating the need for a press die, and to move the power from the machine to the seedling mounting table 7 side. The chain cover 57 of the chain for transmitting the bolts is fixed to the handle frame 8 with bolts 58, and the cover 57 is separated from the bonnet 7, so that adjustment and maintenance can be performed. The hood 7 can be easily detached. Also, as shown in FIGS. 2 and 19, a transparent dome-shaped window 59 is provided on the bonnet 16 above the take-out claw 13 so that the working vehicle can view the lower take-out claw 13 from above the bonnet 16 through the window. I have.
[0022]
【The invention's effect】
As is apparent from the above embodiment, the present invention provides a lift cylinder 24 and a lift valve 26 for changing the ground height of the machine body, and a lock lever 32 for closing the lift valve 26 and stopping the lift operation. In the vegetable transplanter provided with the lock lever 32, the lock lever 32 is provided so that the mounting direction is on the upper surface side of the machine body. The lock lever 32 can be operated from both the left and right sides of the machine body and obliquely rearward. It is possible to eliminate a problem that the operation position is limited or the like, and also a problem that the work such as maintenance performed by detaching the bonnet 16 is restricted by the lock lever 32.
[0023]
In addition, the lever holder 33 provided with the lock lever 32 and the stoppers 34 and 35 of the lock lever 32 are integrally formed so that the lock lever functions even if the cover of the lock lever portion is removed. The hydraulic stop can be reliably maintained, and the stoppers 34 and 35 at both the open and closed positions of the lock lever 32 can be formed by a part of the lever holder 33, thereby reducing the number of components of the lock lever 32. This can reduce costs and the like.
[0024]
Further, the operating portion of the lock lever 32 is projected upward through the cutout of the bonnet 16 through the notch of the bonnet 16, and the bonnet 16 is used for attaching the nameplate of the lock lever 32 or forming the lever guide groove 34. The operation of the lock lever 32 and the confirmation of the switching position can be performed from any direction around the hood 16.
[Brief description of the drawings]
FIG. 1 is an overall perspective view.
FIG. 2 is a side view of the same.
FIG. 3 is a plan view of the same.
FIG. 4 is a front view of the same.
FIG. 5 is an explanatory front view of the same.
FIG. 6 is a perspective view of a hydraulic pump unit.
FIG. 7 is an enlarged view of FIG.
FIG. 8 is a front view of a spare seedling stand.
FIG. 9 is a plan view of the same.
FIG. 10 is a perspective view of the same.
FIG. 11 is an enlarged view of FIG.
FIG. 12 is an explanatory side view of the same.
FIG. 13 is a rear view of the planting claw.
FIG. 14 is an enlarged view of FIG.
FIG. 15 is a partial view of the same.
FIG. 16 is a partial front view of the same.
FIG. 17 is an explanatory view of a transplant operation.
FIG. 18 is a side view of the planting case portion.
FIG. 19 is a plan view of a front part of a seedling mounting table.
FIG. 20 is a side view of the rear part of the hood.
[Explanation of symbols]
16 Bonnet 24 Lifting cylinder 26 Lifting valve 32 Lock lever 34/35 Stopper
