JP3700825B2

JP3700825B2 - Rice transplanter

Info

Publication number: JP3700825B2
Application number: JP21168699A
Authority: JP
Inventors: 一明伊谷; 裕一加藤
Original assignee: Yanma Agricultural Equipment Co Ltd
Current assignee: Yanma Agricultural Equipment Co Ltd
Priority date: 1999-07-27
Filing date: 1999-07-27
Publication date: 2005-09-28
Anticipated expiration: 2020-09-28
Also published as: JP2000023509A

Description

【０００１】
【産業上の利用分野】
本発明は例えば苗載台及び植付爪を備えて連続的に苗植作業を行う田植機に関する。
【０００２】
【発明が解決しようとする課題】
従来、特開平５−２７６８１８号公報に示す如く、走行車の後側にリンク機構を介して植付部を昇降自在に装設させると共に、肥料を入れるタンク並びに肥料を繰出す繰出ケースを設ける施肥機を走行車後部に搭載し、繰出ケース後方側に延設させる送出パイプによって肥料を植付部に搬出させる側条施肥技術がある。しかし乍ら、前記従来技術は、田植作業が終了して前記タンクの残留肥料を取出すとき、運転席後側に位置する中央側のタンクに肥料取出しまたはメンテナンスなどを行うスペースがないから、中央側のタンクに残った肥料を左右側のタンクにかき分け移動させて左右側から取出す必要があり、またタンクを取外してメンテナンスを行う必要があり、残留肥料取出しまたはメンテナンス等の作業の簡略化を容易に行い得ない問題がある。そこで、特開平４−８４８１１号公報に示す如く、走行車上面を低く構成してタンクの残留肥料を取出すことも行えるが、走行車の車体構造が制限されたり、肥料が機体に付着したり、泥土付着によって肥料が湿り易い等の不具合がある。
【０００３】
【課題を解決するための手段】
然るに、本発明は、走行車の後側にリンク機構を介して植付部を昇降自在に装設させると共に、肥料を入れるタンク並びに肥料を繰出す繰出ケースを設ける施肥機を走行車後部に搭載し、施肥機後方側に延設させる送出パイプによって肥料を植付部に搬出させる田植機において、前記走行車に昇降可能に支持させる前記タンク及び繰出ケースを持上げ操作する取手と、走行車に対する前記タンク及び繰出ケースの固定支持を解除する解除レバーを各別に設けると共に、多条用の複数の繰出ケース並びに送風用ファンを取付ける筒形施肥本体フレームに取手を固定させ、前記走行車に昇降レールを介して施肥機を昇降自在に取付け、走行車の車体カバー上面の低い位置に施肥機を支持させて施肥作業を行うと共に、昇降レールの上昇位置に施肥機を支持させてタンクの残留肥料を受取るように構成したもので、前記タンク及び繰出ケースの固定支持の解除が作業者によって取手を握っただけで行われる誤動作を容易に防止し得、解除レバー操作と取手操作によってタンク及び繰出ケースを施肥作業位置と残留肥料取出しまたはメンテナンス等を行う非作業位置に移動させ、残留肥料取出しまたはメンテナンス等の作業の簡略化並びに取扱い操作性の向上などを容易に図り得ると共に、タンク及び繰出ケース及びファンを左右方向に長尺な施肥本体フレームに設けて高剛性構造を容易に得られ、かつ施肥本体フレームの中空を利用してファンから送出パイプに容易に送風し得、しかも作業者が取手を握って施肥本体フレームを水平に支持し乍らスムーズに昇降させ得、昇降レールの上昇側高位置に前記タンクを支持させて車体カバー上面との間隔を拡大し得、残留肥料取出しまたは掃除などの作業性向上などを容易に図り得るものである。
【０００４】
【実施例】
以下、本発明の実施例を図面に基づいて詳述する。図１はリヤアクスルケース部の側面図、図２は乗用田植機の側面図、図３は同平面図を示し、図中（１）は作業者が搭乗する走行車であり、エンジン（２）を車体フレーム（３）前部上方に搭載させ、ギヤ変速ケース（４）前方にフロントアクスルケース（５）を介して水田走行用前輪（６）を支持させると共に、前記ギヤ変速ケース（４）の後部にリヤアクスルケース（７）を連設し、前記リヤアクスルケース（７）に水田走行用後輪（８）を支持させる。そして前記エンジン（２）等を覆うボンネット（９）両側に予備苗載台（１０）を取付けると共に、ステップ（１１）を介して作業者が搭乗する車体カバー（１２）によって前記ギヤ変速ケース（４）等を覆い、前記車体カバー（１２）上部に運転席（１３）を取付け、その運転席（１３）の前方で前記ボンネット（９）後部に操向ハンドル（１４）を設ける。
【０００５】
また、図中（１５）は６条植え用の苗載台（１６）並びに複数の植付爪（１７）などを具備する植付部であり、前高後低の合成樹脂製の前傾式苗載台（１６）を下部レール（１８）及びガイドレール（１９）を介して植付ケース（２０）に左右往復摺動自在に支持させると共に、一方向に等速回転させるロータリケース（２１）を前記植付ケース（２０）に支持させ、該ケース（２１）の回転軸芯を中心に対称位置に一対の爪ケース（２２）（２２）を配設し、その爪ケース（２２）（２２）先端に植付爪（１７）（１７）を取付ける。また前記植付ケース（２０）の前側にローリング支点軸（２３）を介して支持フレーム（２４）を設け、トップリンク（２５）及びロワーリンク（２６）を含む三点リンク機構（２７）を介して走行車（１）後側に支持フレーム（２４）を連結させ、前記リンク機構（２７）を介して植付部（１５）を昇降させる昇降シリンダ（２８）をロワーリンク（２６）に連結させ、前記前後輪（６）（８）を走行駆動して移動すると同時に、左右に往復摺動させる苗載台（１６）から一株分の苗を植付爪（１７）によって取出し、連続的に苗植え作業を行うように構成する。
【０００６】
また、図中（２９）は主変速レバー、（３０）は植付昇降兼作業走行変速用副変速レバー、（３１）は植付け感度調節レバー、（３２）は主クラッチペダル、（３３）（３３）は左右ブレーキペダル、（３４）は２条分均平用センターフロート、（３５）は２条分均平用サイドフロート、（３６）は６条用の側条施肥機である。
【０００７】
さらに、図４、図５、図６に示す如く、左右一対の四角筒形の前記車体フレーム（３）（３）前部にエンジン（２）を搭載し、前車軸（３７）（３７）を介して左右前輪（６）（６）を軸支させるフロントアクスルケース（５）をエンジン（２）後方の車体フレーム（３）（３）下面に取付け、フロントアクスルケース（５）後方の左右車体フレーム（３）（３）間に無段ベルト変速ケース（３８）を設け、無段変速ケース（３８）後方の左右車体フレーム（３）（３）間にギヤ変速ケース（４）を設けると共に、後車軸（３９）（３９）を介して左右後輪（８）（８）を軸支させるリヤアクスルケース（７）を左右車体フレーム（３）（３）後端下面に固設させ、エンジン（２）出力を各変速ケース（３８）（４）を介して各アクスルケース（５）（７）に走行駆動力として伝達させ、前後輪（６）（８）を駆動するように構成している。
【０００８】
また、正面視門形のリフトフレーム（４０）両端を左右車体フレーム（３）（３）後端上面に溶接固定させ、車体フレーム（３）中間のブレーキペダル受軸（４１）と、車体フレーム（３）上に立設させるリフトフレーム（４０）中間の間に、前低後高に傾斜させるサブフレーム（４２）（４２）を架設させると共に、サブフレーム（４２）（４２）間に昇降シリンダ（２８）を取付け、またトップリンク（２５）及びロワーリンク（２６）で形成するリンク機構（２７）を各フレーム（３）（４０）（４２）を介して取付け、昇降シリンダ（２８）によってリンク機構（２７）を揺動させて植付部（１５）を昇降させるように構成している。
【０００９】
さらに、前ステップ（４３）及び後ステップ（４４）及び後カバー（４５）によって前記車体カバー（１２）を３分割に分離自在に形成し、後カバー（４５）を取外して該部に前記施肥機（３６）を装設させるもので、肥料を入れるタンク（４６）、肥料を定量供給する繰出ケース（４７）、フロート（３４）（３５）の側条施肥シュート（４８）にフレキシブル形送出パイプ（４９）を介して肥料を排出させる送風ターボファン（５０）と、円筒形の施肥本体フレーム（５１）とを、前記施肥機（３６）に備えると共に、開閉自在な蓋（５２）によって施肥本体フレーム（５１）右側開口を閉塞し、施肥本体フレーム（５１）左側端にターボファン（５０）を取付け、６条分の６組の繰出ケース（４７）…と送出パイプ（４９）…を施肥本体フレーム（５１）に配設させている。
【００１０】
さらに、図１、図６、図７、図８に示す如く、前記車体フレーム（３）後端部でリンクフレーム（４０）上側にベースフレーム（５３）を取付け、左右方向に横架させる前記ベースフレーム（５３）を介して施肥機（３６）を設けると共に、左右一対のサイドステー（５４）（５４）と前記ベースフレーム（５３）の背面視門形フレーム構造を介して施肥機（３６）を設けるもので、リンクフレーム（４０）上側の左右サブフレーム（４２）（４２）後端上面にベースフレーム（５３）中間下面をボルト止め固定させ、ベースフレーム（５３）左右側端に左右サイドステー（５４）（５４）上端をボルト止め固定させ、左右車体フレーム（３）（３）後端のブラケット（５５）（５５）に左右サイドステー（５４）（５４）下端をボルト止め固定させている。
【００１１】
また、略水平に横架させる平面視Ｈ形のベースフレーム（５３）両側に支柱部材である昇降レール（５６）…を立設させ、前後一組左右二対の４本の該昇降レール（５６）（５６）（５６）（５６）を介して施肥機（３６）を昇降自在に取付けると共に、弾性上昇部材である左右一対の２本のガススプリング（５７）（５７）と施肥本体フレーム（５１）による門形フレーム構造によって昇降自在に施肥機（３６）を取付け、車体フレーム（３）後端部に配置させるリヤアクスルケース（７）により施肥機（３６）重量を支持させるもので、図８にも示す如く、左右昇降レール（５６）（５６）に対向させる軸受板（５８）（５８）を前記施肥本体フレーム（５１）に溶接固定させ、前記レール（５６）に転動自在に嵌込むベアリングローラ（５９）…を軸受板（５８）に回転自在に軸支させ、前後２本のレール（５６）（５６）を左右対称に２組設け、１本のレール（５６）に対して上下２個のローラ（５９）（５９）を取付け、施肥本体フレーム（５１）を４本のレール（５６）と８個のローラ（５９）…によってベースフレーム（５３）に昇降自在に支持させている。前記のように、施肥機（３６）の繰出ケース（４７）の前後に設ける一組の支柱部材である昇降レール（５６）（５６）を左右に対称に配設させたもので、施肥機（３６）の重心位置を囲む四方を４個所（４本）の昇降レール（５６）…によって支持でき、施肥機（３６）の前後及び左右の傾動を規制してスムーズな昇降動作を容易に得ることができるものである。
【００１２】
また、前記ガススプリング（５７）の下端を前記ブラケット（５５）に連結させ、前記軸受板（５８）にガススプリング（５７）上端を連結させ、前記レール（５６）とガススプリング（５７）を略平行に設けると共に、施肥機（３６）の前後幅方向の重心位置にガススプリング（５７）を連結させるもので、施肥機（３６）の重量と略等しいかまたは若干小さい伸張力をガススプリング（５７）が有するように構成している。このように、走行車（１）の後部にリヤアクスルケース（７）を介して後輪（８）を装設させる乗用田植機において、左右一対の弾性上昇部材であるガススプリング（５７）（５７）を介して前記リヤアクスルケース（７）上に施肥機（３６）の施肥本体フレーム（５１）を取付けると共に、走行車（１）に昇降自在に設ける施肥機（３６）の略重心位置に弾性上昇部材であるガススプリング（５７）を連結させるもので、前記リヤアクスルケース（７）の利用によって施肥機（３６）の支持を安定させ、前記ガススプリング（５７）の支持によって作業者による施肥機（３６）持上げ操作力を軽減させ、施肥機（３６）を持上げて行う掃除または残留肥料取出しなどの作業性を向上させると共に、前記ガススプリング（５７）の上昇力による施肥機（３６）の前後または左右の傾きを防ぎ、施肥機（３６）の昇降動作がスムーズになり、施肥機（３６）の昇降案内構造を昇降レール（５６）…などによって簡略で軽量コンパクトに構成している。なお、図７のように、前記ガススプリング（５７）と略同じ構造で、前方側に補助ガススプリング（６０）を設け、左右４本のガススプリング（５７）（５７）（６０）（６０）によって施肥機（３６）を持上げてもよい。
【００１３】
さらに、図９、図１０、図１１、図１２に示す如く、施肥機（３６）を持上げるときに作業者が握る左右一対の取手（６１）（６１）を前記施肥本体ケース（５１）に溶接固定させ、前記取手（６１）に支軸（６２）を介してロックアーム（６３）を回転自在に軸支させると共に、前記昇降レール（５６）の補強リブ（６４）に上下係合孔（６５）（６６）を形成させ、各係合孔（６５）（６６）にロックアーム（６３）を係入させて施肥機（３６）を上昇位置または下降位置で固定支持させるもので、ロックアーム（６３）に設けるロック部材である解除レバー（６７）を前記取手（６１）の下側に延出させ、作業者が取手（６１）を握り乍ら解除レバー（６７）を操作し、ロックアーム（６３）を係合孔（６５）（６６）から離脱させることができるように構成している。
【００１４】
また、前記施肥本体フレーム（５１）にケースブラケット（６８）を溶接固定させ、該ケースブラケット（６８）に前記繰出ケース（４７）をボルト止め固定させるもので、１ユニットとして構成する２条分の繰出ケース（４７）（４７）を左右の昇降レール（５６）（５６）間に配設させ、昇降レール（５６）（５６）の機外側に２条分の繰出ケース（４７）（４７）を夫々配設させ、２条１組として３ユニットの繰出ケース（４７）…を左右に並設させている。
【００１５】
さらに、図１１、図１２、図１３、図１４、図１５に示す如く、前記繰出ケース（４７）の上面前側の取入口（６９）に前記タンク（４６）下部出口を嵌着させると共に、前記繰出ケース（４７）前面下側に取出口（７０）を形成し、着脱自在なキャップ（７１）によって取出口（７０）を閉塞している。前記施肥本体フレーム（５１）に溶接固定させるシュート（７２）によって取出口（７０）外側を囲み、キャップ（７１）を取外して取出口（７０）を開放し、タンク（４６）内部の肥料（Ａ）をシュート（７２）に流下させるもので、このときに施肥機（３６）を昇降レール（５６）の上昇位置に支持させ、シュート（７２）とベースフレーム（５３）の間隔を拡大させ、肥料を入れる容器を前記シュート（７２）下方に容易に差し入れることができ、残留肥料の取出しを容易に行えるように構成している。
【００１６】
上記から明らかなように、走行車（１）の後側にリンク機構（２７）を介して植付部（１５）を昇降自在に装設させると共に、肥料を入れるタンク（４６）並びに肥料を繰出す繰出ケース（４７）を設ける施肥機（３６）を走行車（１）後部に搭載し、施肥機（３６）後方側に延設させる送出パイプ（４９）によって肥料を植付部（１５）に搬出させる田植機において、前記走行車（１）に昇降可能に支持させる前記タンク（４６）及び繰出ケース（４７）を持上げ操作する取手（６１）と、走行車（１）に対する前記タンク（４６）及び繰出ケース（４７）の固定支持を解除する解除レバー（６７）を各別に設けると共に、中央２条分の繰出ケース（４７）の左右幅よりも取手（６１）の左右方向取付け幅を大きく形成し、多条用の複数の繰出ケース（４７）並びに送風用ファン（５０）を取付ける筒形施肥本体フレーム（５１）に取手（６１）を固定させ、走行車（１）に設ける運転席（１３）後側のステップ（４４）上方で左右幅内に取手（６１）及び解除レバー（６７）を配設させ、また走行車（１）に昇降自在に施肥本体フレーム（５１）を支持させる支柱部材である昇降レール（５６）の左右幅よりも外側で施肥本体フレーム（５１）に取手（６１）を連結させる。そして、前記タンク（４６）及び繰出ケース（４７）の固定支持の解除が作業者によって取手（６１）を握っただけで行われる誤動作を防止し、解除レバー（６７）操作と取手（６１）操作によってタンク（４６）及び繰出ケース（４７）を施肥作業位置と残留肥料取出しまたはメンテナンス等を行う非作業位置に移動させ、残留肥料取出しまたはメンテナンス等の作業の簡略化並びに取扱い操作性の向上などを図ると共に、タンク（４６）及び繰出ケース（４７）及びファン（５０）を左右方向に長尺な施肥本体フレーム（５１）に設けて高剛性構造を得られ、かつ施肥本体フレーム（５１）の中空を利用してファン（５０）から送出パイプ（４９）に送風させ、しかも作業者が取手（６１）を握って施肥本体フレーム（５１）を水平に支持し乍らスムーズに昇降させ、さらにタンク（４６）に肥料を補給するステップ（４４）上で取手（６１）及び解除レバー（６７）を操作し、また取手（６１）の昇降操作による施肥本体フレーム（５１）の左右傾斜を少なくして昇降レール（５６）に作用する偏荷重を低減し、施肥機（３６）の昇降支持構造の簡略化並びに昇降操作性の向上などを図る。
【００１７】
また、前記繰出ケース（４７）下面に閉塞レバー（７３）及びバネ（７４）を介して底蓋（７５）を着脱自在に固定させると共に、硬質合成樹脂製の前記底蓋（７５）下面に出口パイプ（７６）を一体形成するもので、施肥本体ケース（５１）に前端部を嵌着させる軟質合成樹脂製の接合パイプ（７７）を備え、該パイプ（７７）後端に前記出口パイプ（７６）前端を着脱自在に嵌着させると共に、前記出口パイプ（７６）後端に前記送出パイプ（４９）を嵌着させ、前記ターボファン（５０）の送風を施肥本体フレーム（５１）中空部から各パイプ（７７）（７６）（４９）に吹出させ、底蓋（７５）の出口（７８）から出口パイプ（７６）中間に落下する肥料（Ａ）を送出パイプ（４９）に移動させるように構成している。前記出口パイプ（７６）の入口側の内径を小さくして風速加速部（７９）を形成し、出口（７８）での送風による肥料（Ａ）吸引力及び搬送力が大きくなるように構成している。
【００１８】
また、取入口（８０）及び吹出口（８１）を有する入口板（８２）と、同一円周上に略四角形の複数の繰出口（８３）…を有する繰出板（８４）と、排出口（８５）を有する出口板（８６）を備え、略円形平板製の前記各板（８２）（８４）（８６）を繰出ケース（４７）と底蓋（７５）の間に多層状に配設させると共に、繰出ケース（４７）に繰出軸（８７）を略垂直に回転自在に軸支させ、各板（８２）（８４）（８６）の中央部に繰出軸（８７）下端側を貫通させ、繰出軸（８７）下端にゴム輪（８８）を着脱自在に係止させ、各板（８２）（８４）（８６）を下方に抜出し自在に繰出軸（８７）に支持させ、かつバネ（７４）によって各板（８２）（８４）（８６）を弾圧させるもので、入口板（８２）と出口板（８６）を繰出ケース（４７）に係止させ、各板（８２）（８６）に対して繰出軸（８７）を遊転させると共に、繰出板（８４）を繰出軸（８７）に係合軸支させ、繰出軸（８７）によって繰出板（８４）を強制的に回転させ、取入口（８０）から繰出口（８３）に入った肥料（Ａ）を排出口（８５）に移動させて出口（７８）方向に落下させるように構成している。
【００１９】
また、前記取入口（８０）端部で繰出口（８３）上面の余分な肥料（Ａ）を取除くブラシ（８９）を備え、高さ調節する撮（９０）を介して前記ブラシ（８９）を繰出ケース（４７）に高さ調節自在に取付け、繰出板（８４）上面に対するブラシ（８９）下端の高さ調節を繰出ケース（４７）外部から行い、繰出口（８３）の肥料（Ａ）送出量を調節するように構成している。
【００２０】
また、前記入口板（８２）の吹出口（８１）に対向させる圧風取入口（９１）を繰出ケース（４７）に形成し、前記施肥本体ケース（５１）の中空部と前記圧風取入口（９１）を分流パイプ（９２）によって連通させ、前記パイプ（９２）及び取入口（９１）を介してターボファン（５０）からの送風を吹出口（８１）に供給し、排出口（８５）位置に移動した繰出口（８３）に吹出口（８１）から送風し、該送風によって繰出口（８３）の肥料（Ａ）を下方に強制的に落下させ、粒形の肥料（Ａ）またはこの粉が繰出口（８３）内に残るのを防ぐように構成している。
【００２１】
さらに、図４、図５、図１６に示す如く、前記エンジン（２）出力を植付部（１５）に伝達させるＰＴＯ軸（９３）をギヤ変速ケース（４）から後方に延出させると共に、前記リフトフレーム（４０）左側に軸受筒（９４）を溶接固定させ、軸受筒（９４）の施肥入力軸（９５）前端部を前記ＰＴＯ軸（９３）中間にチェン（９６）を介して連動連結させる。前記施肥入力軸（９５）後端部にクランク板（９７）を固定させる。また、前記軸受板（５８）及びケースブラケット（６８）の各後端側を一体固定させる四角パイプ形後面フレーム（９８）を備え、施肥本体フレーム（５１）と略平行に後面フレーム（９８）を横架させると共に、後面フレーム（９８）にブラケット（９９）を介して軸受（１００）を固定させ、軸受（１００）に支点軸（１０１）を介して繰出量調節レバー（１０２）を回転自在に軸支させる。そして、結合レバー（１０３）及び係合板（１０４）（１０５）を介して切離し自在に連結させる入力及び出力ロッド（１０６）（１０７）を備え、前記クランク板（９７）と繰出量調節レバー（１０２）の一端側とを前記ロッド（１０６）（１０７）によって連結させる。
【００２２】
また、前記後面フレーム（９８）に軸受板（１０８）を介して繰出駆動軸（１０９）を回転自在に軸支させ、該駆動軸（１０９）に揺動アーム（１１０）を固定させ、前記繰出量調節レバー（１０２）に長さ調節自在な伸縮ロッド（１１１）一端側を連結させ、かつ前記揺動アーム（１１０）に複数の軸孔（１１２）…を介して支点間距離調節自在に前記伸縮ロッド（１１１）の他端側を連結させると共に、前記支点軸（１０１）に対する出力ロッド（１０７）と伸縮ロッドの夫々の連結距離の比をネジ（１１３）の回転によって変更させる回転レバー（１１４）を繰出量調節レバー（１０２）に設けるもので、前記の複数の軸孔（１１２）…の選択により伸縮ロッド（１１１）を連結する揺動アーム（１１０）の長さを変化させ、該アーム（１１０）の揺動ストロークを変更させて肥料繰出量の多段調節を行うと共に、前記回転レバー（１１４）操作により支点軸（１０１）に対して繰出量調節レバー（１０２）をネジ（１１３）軸芯方向に摺動させ、支点軸（１０１）に対するレバー（１０２）とロッド（１０７）の連結点の長さと、支点軸（１０１）に対するレバー（１０２）とロッド（１１１）の連結点の長さの比を変化させ、伸縮ロッド（１１１）の往復ストロークを無段階に変更させて肥料繰出量の無段調節を行うように構成している。
【００２３】
さらに、図１４に示す如く、前記後面フレーム（９８）に軸受（１１５）をボルト止め固定させ、連れ回り防止一方向クラッチ（１１５ａ）を介して前記軸受（１１５）にクラッチ軸（１１６）を軸支させ、該クラッチ軸（１１６）に一方向クラッチ（１１７）を介して入力リンク（１１８）を設けると共に、前記繰出駆動軸（１０９）に揺動リンク（１１９）を固定させ、該リンク（１１９）を前記入力リンク（１１８）に連係バー（１２０）を介して連結させ、入力リンク（１１８）を揺動させてクラッチ軸（１１６）を一方向に間欠的に回転させ、また前記入力リンク（１１８）が戻る一方向クラッチ（１１７）空転動作によってクラッチ軸（１１６）が逆転するのを、前記連れ回り防止一方向クラッチ（１１５ａ）と軸受（１１５）のブレーキ作用によって阻止するように構成している。
【００２４】
また、前記繰出ケース（４７）にクラッチケース（１２１）を固定させると共に、前記繰出軸（８７）上端側にベベルギヤ（１２２）（１２３）を介して入力軸（１２４）を常時連結させるもので、入力軸（１２４）を前記クラッチ軸（１１６）に継断自在に連結させる条止めクラッチ（１２５）を備え、該クラッチ（１２５）を前記クラッチケース（１２１）に内設させると共に、前記条止めクラッチ（１２５）を継断操作するクラッチレバー（１２６）とクラッチアーム（１２７）を前記クラッチケース（１２１）の前後に振分け配設させ、前記植付部（１５）の苗載台（１６）上側背面部に設ける植付け条止めレバー（１２８）に、後面フレーム（９８）のアウタ受（１２９）により張設させるワイヤ（１３０）を介して、前記クラッチアーム（１２７）を連結させる。そして、前記植付け条止めレバー（１２８）操作によって６条植え用の各植付爪（１７）…のいずれかを停止させたとき、停止させた植付爪（１７）に対応する条止めクラッチ（１２５）を切断動作させて施肥動作を中止させ、植付爪（１７）によって苗を植付ける条にだけ施肥を行うもので、例えば左側と中央の４条の苗植付けを行うとき、左側と中央の４条の繰出ケース（４７）…から施肥を行うと共に、作業者によってクラッチレバー（１２６）を操作して条止めクラッチ（１２５）を切断させることにより、６条の繰出ケース（４７）…のいずれかまたは全部を任意に選択して、苗植付けとは関係なく、施肥を中止させることができるように構成している。
【００２５】
さらに、図１７、図１８に示す如く、一方の係合板（１０４）に２本の軸（１３１）（１３２）を溶接固定させ、もう一方の係合板（１０５）の孔（１３３）（１３３）に各軸（１３１）（１３２）を抜出し自在に係入させると共に、一方の係合板（１０４）の孔（１３４）に、もう一方の係合板（１０５）に溶接固定させる係合軸（１３５）を出入自在に貫通させるもので、一方の係合板（１０４）に前記軸（１３１）を介して結合レバー（１０３）を回転自在に軸支させ、係合軸（１３５）の貫通端部に結合レバー（１０３）を係脱自在に係止させ、該レバー（１０３）を係合軸（１３５）にバネ（１３６）によって係止保持させ、各係合板（１０４）（１０５）を分離自在に合体固定させる。そして、施肥機（３６）を昇降レール（５６）下降位置に支持させているとき、結合レバー（１０３）及び各軸（１３１）（１３２）（１３５）によって固定させる各係合板（１０４）（１０５）を介して入力及び出力ロッド（１０６）（１０７）を一体的に連結させ、施肥機（３６）側に各ロッド（１０６）（１０７）を介して駆動力を伝達させると共に、前記結合レバー（１０３）解除操作によって該レバー（１０３）を係合軸（１３５）から離脱させることにより、各係合板（１０４）（１０５）が分離して入力及び出力ロッド（１０６）（１０７）が切離され、昇降レール（５６）の案内によってこの上昇位置に施肥機（３６）を上昇させる操作が可能になる。従って、作業者が左右の取手（６１）（６１）を握った手で左右の解除レバー（６７）（６７）を操作した後、取手（６１）（６１）を上方に持上げることにより、施肥機（３６）を昇降レール（５６）上端側に上昇移動させて上昇位置に支持させることができる。
【００２６】
上記から明らかなように、施肥機（３６）を走行車（１）に取付ける場合、後カバー（４５）を取外し、平面視Ｈ形のベースフレーム（５３）中央部をサブフレーム（４２）後端上面にボルト止め固定させ、サブフレーム（４２）両側と下方の左右ブラケット（５５）（５５）間に左右サイドステー（５４）（５４）をボルト止め固定させ、車体フレーム（３）後端でリヤアクスルケース（７）及び後車軸（３９）の略直上にリンクフレーム（４０）を介してベースフレーム（５３）を固定させる。そして、ベースフレーム（５３）上の昇降レール（５６）…に上端開口部からベアリングローラ（５９）…を嵌入させ、各レール（５６）…及びローラ（５９）…を介して施肥本体フレーム（５１）をベースフレーム（５３）に昇降自在に支持させると共に、施肥本体フレーム（５１）の左右一対の軸受板（５８）（５８）と下方の左右ブラケット（５５）（５５）間に左右ガススプリング（５７）（５７）をボルト止め固定させ、ガススプリング（５７）によって施肥機（３６）を支持させる。次いで、フロート（３４）（３５）の側条施肥シュート（４８）…と繰出ケース（４７）…の間に送出パイプ（４９）…を連結させるもので、ターボファン（５０）の送風により、繰出ケースに取出されたタンク（４６）の肥料（Ａ）が送出パイプ（４９）から側条施肥シュート（４８）に送出され、植付爪（１７）による苗の植付け条に隣接させて肥料（Ａ）を埋込む側条施肥が行われる。
【００２７】
上記のように、リンクフレーム（４０）を利用して施肥機（３６）を取付けることにより、ベースフレーム（５３）を軽量コンパクトに形成できると共に、施肥機（３６）荷重を車体フレーム（３）後端で支えることにより、施肥機（３６）を後車軸（３９）上で安定良く支持できる。また、施肥本体フレーム（５１）とガススプリング（５７）を介して施肥機（３６）重量をリヤアクスルケース（７）で受けることにより、走行車（１）側の強度的に安定した個所で施肥機（３６）を支持できると共に、走行車（１）側で発生する振動をガススプリング（５７）で吸収させることができ、このガススプリング（５７）のショックアブソーバ効果により、肥料繰出し量が安定し易く、かつ施肥機（３６）本体の耐久性を向上させることができる。
【００２８】
さらに、昇降レール（５６）の下降位置に施肥機（３６）を支持させることにより、車体カバー（１２）上面の低い位置に施肥機（３６）を支持して施肥作業を行うことができる。一方、昇降レール（５６）の上昇位置に施肥機（３６）を支持させることにより、タンク（４６）に残留している肥料（Ａ）を受取るための容器をシュート（７２）下方に容易に差し入れることができ、施肥本体フレーム（５１）に対してタンク（４６）を接近させて施肥機（３６）の上下幅のコンパクト化並びに低重心化を容易に行えると共に、閉塞レバー（７３）のロック解除操作によって底蓋（７５）を下方に取外し、ゴム輪（８８）を外して入口板（８２）及び繰出板（８４）及び出口板（８６）を繰出ケース（４７）から下方に取出し、各板（８２）（８４）（８６）の掃除を行える。
【００２９】
さらに、前記結合レバー（１０３）のロック解除操作によって各係合板（１０４）（１０５）が分離して入力ロッド（１０６）と出力ロッド（１０７）が切離され、走行車（１）側と施肥機（３６）の連結が工具を用いずに解除され、昇降レール（５６）の案内により施肥機（３６）を上昇させることができる。また、前記軸孔（１１２）…による揺動アーム（１１０）と伸縮ロッド（１１１）の連結、並びに支点軸（１０１）に対する各ロッド（１０７）（１１１）連結点の距離の比を変更自在な繰出量調節レバー（１０２）調節により、施肥入力軸（９５）の回転数を一定に保った状態で繰出軸（８７）の回転数を多段階にまたは無段階的に変化させ、繰出板（８４）による肥料（Ａ）繰出し量調節を多段階にまたは無段階に行える。しかも、植付部（１５）の条止めレバー（１２８）操作によって植付部（１５）の植付条数を変化させるだけで、停止した植付爪（１７）に対向する繰出ケース（４７）の肥料繰出しをクラッチアーム（１２７）を介して自動的に中止させることができ、肥料の無駄使いを防げると共に、６条分の繰出ケース（４７）…に対応させて夫々設けたクラッチレバー（１２６）…を作業者によって任意に入切操作し、６条全体または一部の繰出ケース（４７）…による肥料（Ａ）繰出しを手動操作によって中止させることができる。
【００３０】
さらに、走行車（１）後側に植付部（１５）を装設させると共に、走行車（１）後部で植付部（１５）前側に施肥機（３６）を設ける乗用田植機において、走行車（１）後部に左右支柱部材である昇降レール（５６）（５６）を立設させ、前記施肥機（３６）の施肥本体フレーム（５１）を左右昇降レール（５６）（５６）に昇降自在に取付けるから、結合レバー（１０３）操作によって入力ロッド（１０６）と出力ロッド（１０７）を切離し、駆動連結部を１個所取外すだけで、フレキシブルホースで形成する送出パイプ（４９）を連結させた状態で、施肥機（３６）を上昇させることができる。また、田植作業と同時に行う施肥作業時に昇降レール（５６）を介して低位置に安定良く下降支持できると共に、昇降レール（５６）を介して施肥機（３６）を高位置に上昇支持させることにより、施肥機（３６）下側の繰出ケース（４７）部の掃除、並びに施肥機（３６）のホッパー（４６）下部からの残留肥料の取出などの作業を、走行車（１）の運転席（１３）側から容易に行え、例えば走行車（１）と植付部（１５）の間に作業者が入り込んで施肥機（３６）を持上げる危険な作業を不要にし、また残留肥料を入れるための大きな容器を上昇位置の前記ホッパー（４６）下部に運転席（１３）から簡単に出入させることができ、容器から肥料を零れさせることなく簡単に回収できる。
【００３１】
さらに、走行車（１）の車体フレーム（３）左右幅と施肥機（３６）のベースフレーム（５３）左右幅を略同じ寸法に形成すると共に、前記ベースフレーム（５３）両側部に左右支柱部材である昇降レール（５６）（５６）を立設させたもので、走行車（１）機体左右幅内に昇降レール（５６）を配置させて軽量コンパクトな構成となり、しかも作業者の肥料補給作業空間が施肥機（３６）周辺に確保されると共に、前記車体フレーム（３）の左右方向全幅を利用して施肥機（３６）を安全良く支持でき、また施肥機（３６）支持構造のコンパクト化などを容易に図れる。
【００３２】
さらに、施肥機（３６）の２条分の繰出ケース（４７）（４７）を挾んで両側部に左右支柱部材である昇降レール（５６）（５６）を配設させるもので、左右昇降レール（５６）（５６）の左右機外側方に２条分の繰出ケース（４７）（４７）を夫々配設させることによって６条用施肥機（３６）が構成され、２条分の繰出ケース（４７）（４７）を１ユニットとして偶数多条用の施肥機（３６）を容易に搭載できると共に、運転席（１３）側から作業者が両手で最も操作し易い幅に左右取手（６１）（６１）を施肥本体フレーム（５１）に設けると、左右昇降レール（５６）（５６）の外側に近接して左右取手（６１）（６１）が配置される。このように、取扱い上並びに強度的に最も有利な左右昇降レール（５６）（５６）近くに、作業者が握る昇降操作用取手（６１）を配設でき、施肥機（３６）の昇降操作性の向上などを容易に図れる。
【００３３】
さらに、施肥機（３６）を上昇位置及び下降位置で支柱部材である昇降レール（５６）に固定させるロック部材である解除レバー（６７）及びロックアーム（６３）を設けるから、施肥機（３６）を上昇または下降位置に確実に係止させ、施肥機（３６）の昇降誤動作を防いで安全に取扱えるもので、施肥機（３６）を昇降させるときに作業者が握る取手（６１）にロックアーム（６３）を取付け、取手（６１）に近接させて解除レバー（６７）を設け、取手（６１）を握った手で解除レバー（６７）を操作してロック解除動作させることができ、取手（６１）による上下動作と解除レバー（６７）によるロック解除動作を一連に行えて使い易いと共に、取手（６１）と解除レバー（６７）を各別に形成しているから、取手（６１）によってロックアーム（６３）のロック動作を解除させる構造のように、取手（６１）を握っただけでロック解除が行われる誤動作を防ぎ、安全に取扱える。また、施肥機（３６）下降位置で昇降レール（５６）の下端基部にロックアーム（６３）を係止させるから、施肥作業時など通常の下降位置支持状態では大きな支持強度で施肥機（３６）が固定される。
【００３４】
【発明の効果】
以上実施例から明らかなように本発明は、走行車（１）の後側にリンク機構（２７）を介して植付部（１５）を昇降自在に装設させると共に、肥料を入れるタンク（４６）並びに肥料を繰出す繰出ケース（４７）を設ける施肥機（３６）を走行車（１）後部に搭載し、施肥機（３６）後方側に延設させる送出パイプ（４９）によって肥料を植付部（１５）に搬出させる田植機において、前記走行車（１）に昇降可能に支持させる前記タンク（４６）及び繰出ケース（４７）を持上げ操作する取手（６１）と、走行車（１）に対する前記タンク（４６）及び繰出ケース（４７）の固定支持を解除する解除レバー（６７）を各別に設けると共に、多条用の複数の繰出ケース（４７）並びに送風用ファン（５０）を取付ける筒形施肥本体フレーム（５１）に取手（６１）を固定させ、前記走行車（１）に昇降レール（５６）を介して施肥機（３６）を昇降自在に取付け、走行車（１）の車体カバー（１２）上面の低い位置に施肥機（３６）を支持させて施肥作業を行うと共に、昇降レール（５６）の上昇位置に施肥機（３６）を支持させてタンク（４６）の残留肥料を受取るように構成したもので、前記タンク（４６）及び繰出ケース（４７）の固定支持の解除が作業者によって取手（６１）を握っただけで行われる誤動作を容易に防止でき、解除レバー（６７）操作と取手（６１）操作によってタンク（４６）及び繰出ケース（４７）を施肥作業位置と残留肥料取出しまたはメンテナンス等を行う非作業位置に移動させ、残留肥料取出しまたはメンテナンス等の作業の簡略化並びに取扱い操作性の向上などを容易に図ることができると共に、タンク（４６）及び繰出ケース（４７）及びファン（５０）を左右方向に長尺な施肥本体フレーム（５１）に設けて高剛性構造を容易に得ることができ、かつ施肥本体フレーム（５１）の中空を利用してファン（５０）から送出パイプ（４９）に容易に送風でき、しかも作業者が取手（６１）を握って施肥本体フレーム（５１）を水平に支持し乍らスムーズに昇降させることができ、昇降レール（５６）の上昇側高位置に前記タンク（４６）を支持させて車体カバー（１２）上面との間隔を拡大でき、残留肥料取出しまたは掃除などの作業性向上などを容易に図ることができるものである。
【図面の簡単な説明】
【図１】リヤアクスルケース部の側面図。
【図２】全体の側面図。
【図３】同平面図。
【図４】走行車の側面図。
【図５】同平面図。
【図６】施肥機部の背面図。
【図７】ベースフレーム部の側面図。
【図８】同背面図。
【図９】同平面図。
【図１０】図８の拡大図。
【図１１】施肥機の側面図。
【図１２】繰出ケース部の側面図。
【図１３】同背面図。
【図１４】図１２の拡大図。
【図１５】繰出ケース部の平面図。
【図１６】施肥機駆動部の側面図。
【図１７】駆動入力部の背面図。
【図１８】同部の側面分解説明図。
【符号の説明】
（１）走行車
（１５）植付部
（２７）リンク機構
（３６）施肥機
（４４）後ステップ
（４６）タンク
（４７）繰出ケース
（４９）送出パイプ
（５０）送風ターボファン
（５１）施肥本体フレーム
（５６）昇降レール（支柱部材）
（６１）取手
（６７）解除レバー[0001]
[Industrial application fields]
The present invention relates to, for example, a rice transplanter that includes a seedling stage and a planting claw and performs seedling planting work continuously.
[0002]
[Problems to be solved by the invention]
Conventionally, as shown in Japanese Patent Laid-Open No. 5-276818, a fertilizer is provided with a planting portion installed on the rear side of a traveling vehicle so as to be movable up and down via a link mechanism, and a tank for fertilizer and a feeding case for feeding the fertilizer. There is a side fertilization technique in which a machine is mounted on the rear part of a traveling vehicle and fertilizer is carried out to a planting part by a delivery pipe that extends to the rear side of the feeding case. However, since the conventional technique has no space for removing or maintaining fertilizer in the central tank located on the rear side of the driver's seat when the rice planting operation is completed and the residual fertilizer in the tank is taken out, It is necessary to scrape and move the fertilizer remaining in the left and right tanks and remove it from the left and right sides.It is also necessary to perform maintenance by removing the tank, which makes it easy to remove residual fertilizer or perform maintenance, etc. There is a problem that cannot be done. Therefore, as shown in JP-A-4-84811, it is possible to take out the residual fertilizer in the tank by lowering the upper surface of the traveling vehicle, but the vehicle body structure of the traveling vehicle is limited, the fertilizer adheres to the aircraft, There are problems such as fertilizer being easily moistened by mud adhesion.
[0003]
[Means for Solving the Problems]
However, in the present invention, a fertilizer is installed at the rear part of the traveling vehicle in which a planting part is installed on the rear side of the traveling vehicle so as to be movable up and down via a link mechanism, and a fertilizer feeding tank and a feeding case for feeding the fertilizer are provided. Then, in a rice transplanter that carries out fertilizer to the planting part by a delivery pipe that extends to the rear side of the fertilizer applicator, the handle that lifts the tank and the feeding case that are supported by the traveling vehicle so as to be lifted and lowered, A separate release lever is provided to release the fixed support of the tank and feeding case.ManyA handle is fixed to a cylindrical fertilizer body frame to which a plurality of feeding cases for a strip and a blower fan are attached,A fertilizer is attached to the traveling vehicle via an elevating rail so that the fertilizer can be moved up and down, and the fertilizer is supported at a lower position on the upper surface of the vehicle body cover of the traveling vehicle, and the fertilizer is supported at the elevated position of the elevating rail. Configured to receive residual fertilizer in the tankTherefore, it is possible to easily prevent a malfunction that is caused by releasing the fixed support of the tank and the feeding case only by grasping the handle by the operator, and the tank and the feeding case by the release lever operation and the handle operation. It can be moved to a non-working position where residual fertilizer is removed or maintenance is performed, and operations such as removing residual fertilizer or maintenance can be simplified and handling operability can be easily improved, and the tank, feeding case and fan can be moved horizontally. Highly rigid structure can be easily obtained by installing it on a long fertilizer main body frame, and it can be easily blown from the fan to the delivery pipe using the hollow of the fertilizer main body frame, and the fertilizer main body frame is gripped by the operator Can be lifted and lowered smoothly while being supported horizontally,The tank can be supported at a high position on the ascending side of the lifting rail to increase the distance from the upper surface of the vehicle body cover, and workability such as removal of residual fertilizer or cleaning is possible.Improvements can be easily achieved.
[0004]
【Example】
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a rear axle case, FIG. 2 is a side view of a riding rice transplanter, FIG. 3 is a plan view thereof, (1) is a traveling vehicle on which an operator is boarded, and an engine (2) The vehicle body frame (3) is mounted above the front, and the front wheel (6) for paddy field traveling is supported via the front axle case (5) in front of the gear transmission case (4) and the rear of the gear transmission case (4). A rear axle case (7) is connected to the rear axle case, and the rear axle case (7) supports the rear wheel (8) for paddy field travel. The spare seedling stage (10) is attached to both sides of the bonnet (9) that covers the engine (2) and the like, and the gear shift case (4) is mounted by a vehicle body cover (12) on which an operator rides through step (11). ) And the like, and a driver's seat (13) is attached to the upper part of the vehicle body cover (12), and a steering handle (14) is provided at the rear of the bonnet (9) in front of the driver's seat (13).
[0005]
Further, in the figure, (15) is a planting part having a seedling mount (16) for six-row planting and a plurality of planting claws (17), etc. A rotary case (21) for supporting the seedling stage (16) on the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable to the left and right and rotating at a constant speed in one direction. Is supported by the planting case (20), and a pair of claw cases (22) and (22) are arranged at symmetrical positions around the rotational axis of the case (21). The claw cases (22) and (22) ) Attach the planting claws (17) and (17) to the tip. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. Then, the support frame (24) is connected to the rear side of the traveling vehicle (1), and the elevating cylinder (28) for raising and lowering the planting part (15) via the link mechanism (27) is connected to the lower link (26). The seedlings (17) are taken out by the planting claws (17) continuously from the seedling mounting base (16) that moves while driving the front and rear wheels (6) and (8). It is configured to perform seedling planting work.
[0006]
In the figure, (29) is the main transmission lever, (30) is the planting lifting / working transmission subtransmission lever, (31) is the planting sensitivity adjustment lever, (32) is the main clutch pedal, and (33) (33). ) Is a left and right brake pedal, (34) is a center float for leveling two strips, (35) is a side float for leveling two strips, and (36) is a side fertilizer for six strips.
[0007]
Further, as shown in FIGS. 4, 5, and 6, the engine (2) is mounted on the front part of the pair of left and right square cylindrical body frames (3) and (3), and the front axles (37) and (37) are mounted. A front axle case (5) for pivotally supporting the left and right front wheels (6) and (6) is attached to the lower surface of the body frame (3) and (3) behind the engine (2), and the front axle case (5) the left and right body frames behind (3) A continuously variable belt transmission case (38) is provided between (3), a gear transmission case (4) is provided between the left and right vehicle body frames (3) and (3) behind the continuously variable transmission case (38), and the rear A rear axle case (7) for pivotally supporting the left and right rear wheels (8) and (8) via the axles (39) and (39) is fixed to the lower surface of the rear end of the left and right body frames (3) and (3), and the engine (2) The output is supplied to each axle case via each shift case (38) (4). (5) (7) is transmitted as driving force, and configured to drive the wheels (6) (8) back and forth.
[0008]
Further, both ends of the lift frame (40) having a front view portal shape are welded and fixed to the upper surfaces of the rear ends of the left and right body frames (3) and (3), and the brake pedal bearing shaft (41) in the middle of the body frame (3) and the body frame ( 3) A subframe (42) (42) inclined to the front low and rear height is installed between the middle of the lift frame (40) to be erected above, and a lifting cylinder (42) (42) is interposed between the subframes (42) (42). 28), and a link mechanism (27) formed by a top link (25) and a lower link (26) is mounted via each frame (3) (40) (42), and the link mechanism is formed by the lifting cylinder (28). The planting part (15) is moved up and down by swinging (27).
[0009]
Further, the front cover (43), the rear step (44), and the rear cover (45) form the vehicle body cover (12) so as to be separable into three parts, the rear cover (45) is removed, and the fertilizer is attached to the portion. (36) is installed, a fertilizer tank (46), a feed case (47) for supplying fertilizer in a fixed quantity, and a side pipe fertilizer chute (48) for floats (34) and (35), a flexible delivery pipe ( 49) A blower turbo fan (50) for discharging fertilizer through 49) and a cylindrical fertilizer main body frame (51) are provided in the fertilizer applicator (36), and the fertilizer main body frame is opened and closed by a lid (52) that can be freely opened and closed. (51) The right side opening is closed, the turbofan (50) is attached to the left end of the fertilizer body frame (51), and six sets of feeding cases (47) for the six strips and the delivery pipe (49) are used. And it is disposed on the frame (51).
[0010]
Further, as shown in FIGS. 1, 6, 7, and 8, the base frame (53) is attached to the upper side of the link frame (40) at the rear end of the vehicle body frame (3), and the base is horizontally mounted in the horizontal direction. The fertilizer applicator (36) is provided through the frame (53), and the fertilizer applicator (36) is provided through the rear-view portal-type frame structure of the pair of left and right side stays (54) (54) and the base frame (53). An intermediate lower surface of the base frame (53) is bolted to the upper surface of the rear end of the left and right subframes (42) (42) on the upper side of the link frame (40), and the left and right side stays ( 54) (54) The upper end is fixed with bolts, and the lower ends of the left and right side stays (54) (54) are bolted to the brackets (55) (55) at the rear ends of the left and right body frames (3) (3). It is not a constant.
[0011]
Further, lift rails (56), which are column members, are erected on both sides of an H-shaped base frame (53), which is horizontally mounted in a horizontal direction, and four pairs of the lift rails (56) ) (56) (56) (56) and a fertilizer applicator (36) are attached to be movable up and down, and a pair of left and right gas springs (57) (57), which are elastic rising members, and a fertilizer main body frame (51) The fertilizer (36) is mounted in a vertically-movable manner by the portal frame structure according to), and the weight of the fertilizer (36) is supported by the rear axle case (7) disposed at the rear end of the vehicle body frame (3). As shown, the bearing plates (58) and (58) facing the left and right lifting rails (56) and (56) are welded and fixed to the fertilizer main body frame (51), and the bearings are fitted into the rail (56) so as to be freely rollable. roller 59)... Are rotatably supported on the bearing plate (58), and two sets of two front and rear rails (56) and (56) are provided symmetrically to the left and right. The rollers (59) and (59) are attached, and the fertilizer application main body frame (51) is supported by the base frame (53) by four rails (56) and eight rollers (59). As described above, the lifting rails (56) and (56), which are a pair of support members provided before and after the feeding case (47) of the fertilizer applicator (36), are arranged symmetrically left and right. 36) The four sides surrounding the position of the center of gravity of 36) can be supported by four (four) lifting rails (56), and the vertical tilting of the fertilizer applicator (36) is regulated to easily obtain a smooth lifting operation. It is something that can be done.
[0012]
Further, the lower end of the gas spring (57) is connected to the bracket (55), the upper end of the gas spring (57) is connected to the bearing plate (58), and the rail (56) and the gas spring (57) are substantially omitted. A gas spring (57) is connected in parallel to the center of gravity in the front-rear width direction of the fertilizer applicator (36), and an extension force substantially equal to or slightly smaller than the weight of the fertilizer applicator (36) is applied to the gas spring (57 ). Thus, in the riding rice transplanter in which the rear wheel (8) is mounted on the rear portion of the traveling vehicle (1) via the rear axle case (7), the gas springs (57) (57) which are a pair of left and right elastic rising members. The fertilizer body frame (51) of the fertilizer applicator (36) is mounted on the rear axle case (7) via the rear axle, and the elastic rising member is provided at a substantially center of gravity position of the fertilizer applicator (36) provided to be movable up and down on the traveling vehicle (1). The gas spring (57) is connected, and the support of the fertilizer machine (36) is stabilized by using the rear axle case (7), and the fertilizer machine (36) by an operator is supported by the support of the gas spring (57). The lifting operation force is reduced, and workability such as cleaning or removing residual fertilizer by lifting the fertilizer applicator (36) is improved, and the lifting force of the gas spring (57) is increased. The vertical and horizontal tilting of the fertilizer applicator (36) is prevented, and the vertical motion of the fertilizer applicator (36) is smooth, and the vertical guide structure of the fertilizer applicator (36) is simplified, lightweight and compact by the lift rail (56), etc. It is composed. As shown in FIG. 7, the gas spring (57) has substantially the same structure, and an auxiliary gas spring (60) is provided on the front side, and the left and right four gas springs (57) (57) (60) (60). May lift the fertilizer applicator (36).
[0013]
Furthermore, as shown in FIGS. 9, 10, 11, and 12, a pair of left and right handles (61) (61) gripped by the operator when lifting the fertilizer applicator (36) are attached to the fertilizer main body case (51). The lock arm (63) is rotatably supported by the handle (61) via the support shaft (62), and the upper and lower engaging holes (64) of the elevating rail (56) are vertically fixed. 65) (66) is formed, and a lock arm (63) is engaged in each engagement hole (65) (66) to fix and support the fertilizer applicator (36) in the raised or lowered position. A release lever (67), which is a lock member provided on (63), is extended to the lower side of the handle (61), and the operator operates the release lever (67) while holding the handle (61) to operate the lock arm. (63) is disengaged from the engagement holes (65) (66). Door has been configured to allow.
[0014]
Further, a case bracket (68) is welded and fixed to the fertilizer main body frame (51), and the feeding case (47) is bolted and fixed to the case bracket (68). The feeding cases (47) and (47) are arranged between the left and right lifting rails (56) and (56), and two feeding cases (47) and (47) are placed on the outside of the lifting rails (56) and (56). Each unit is provided with 3 units of feeding cases (47) as a set of 2 strips.
[0015]
Further, as shown in FIGS. 11, 12, 13, 14, and 15, the lower outlet of the tank (46) is fitted into the intake (69) on the upper front side of the feeding case (47), and An outlet (70) is formed on the lower front side of the feeding case (47), and the outlet (70) is closed by a detachable cap (71). A chute (72) welded and fixed to the fertilizer application body frame (51) surrounds the outside of the outlet (70), removes the cap (71), opens the outlet (70), and fertilizer (A ) Is allowed to flow down to the chute (72). At this time, the fertilizer applicator (36) is supported at the rising position of the lifting rail (56), and the distance between the chute (72) and the base frame (53) is increased. Can be easily inserted under the chute (72), and the residual fertilizer can be easily taken out.
[0016]
As is apparent from the above, the planting part (15) is installed on the rear side of the traveling vehicle (1) via the link mechanism (27) so as to be movable up and down, and the tank (46) for containing the fertilizer and the fertilizer are fed. A fertilizer (36) provided with a feeding case (47) to be taken out is mounted on the rear part of the traveling vehicle (1), and fertilizer is applied to the planting part (15) by a delivery pipe (49) extending to the rear side of the fertilizer applicator (36). In the rice transplanter to be carried out, the tank (46) for supporting the traveling vehicle (1) so as to be movable up and down, the handle (61) for lifting and operating the feeding case (47), and the tank (46) for the traveling vehicle (1) And a release lever (67) for releasing the fixing support of the feeding case (47).In addition, the horizontal mounting width of the handle (61) is made larger than the horizontal width of the feeding case (47) for the two central strips, and a plurality of feeding cases (47) for multiple strips and a fan for blowing air (50) The handle (61) is fixed to the cylindrical fertilizer body frame (51) to which the handle is attached, and the handle (61) and release within the lateral width above the step (44) on the rear side of the driver seat (13) provided in the traveling vehicle (1) The fertilizer body frame (51) is provided outside the left and right widths of the lifting rail (56), which is a support member that is provided with a lever (67) and supports the fertilizer body frame (51) so that the traveling vehicle (1) can freely move up and down. Connect the handle (61) toThe Then, the fixing support of the tank (46) and the feeding case (47) can be prevented from being malfunctioned simply by grasping the handle (61) by the operator, and the release lever (67) operation and the handle (61) operation are prevented. To move the tank (46) and the feeding case (47) to the fertilizing work position and the non-working position where the residual fertilizer is taken out or maintained, etc. PlanTogether with Further, the tank (46), the feeding case (47), and the fan (50) are provided on the fertilizer main body frame (51) elongated in the left-right direction to obtain a highly rigid structure, and the fertilizer main body frame (51) is hollow. The fan (50) is used to blow air from the fan (50) to the delivery pipe (49), and the operator holds the handle (61) to horizontally support the fertilizer application body frame (51), and then smoothly lifts and lowers the tank (46 ) In the step (44) of supplying fertilizer, the handle (61) and the release lever (67) are operated, and the left and right inclination of the fertilizer body frame (51) due to the lifting and lowering operation of the handle (61) is reduced. The unbalanced load acting on (56) is reduced, the lifting support structure of the fertilizer applicator (36) is simplified and the lifting operability is improved..
[0017]
A bottom cover (75) is detachably fixed to the lower surface of the feeding case (47) via a closing lever (73) and a spring (74), and an outlet is formed on the lower surface of the hard synthetic resin. The pipe (76) is integrally formed. The pipe (76) is provided with a joint pipe (77) made of a soft synthetic resin for fitting the front end portion to the fertilizer main body case (51), and the outlet pipe (76) is provided at the rear end of the pipe (77). ) The front end is detachably fitted, the delivery pipe (49) is fitted to the rear end of the outlet pipe (76), and the blower of the turbo fan (50) is sent from the hollow portion of the fertilizer body frame (51). The fertilizer (A) that is blown to the pipes (77), (76), and (49) and falls in the middle of the outlet pipe (76) from the outlet (78) of the bottom lid (75) is moved to the delivery pipe (49). are doing. The inner diameter of the outlet pipe (76) on the inlet side is reduced to form a wind speed accelerating portion (79), and the fertilizer (A) suction force and conveying force by the air blowing at the outlet (78) is increased. Yes.
[0018]
Further, an inlet plate (82) having an intake port (80) and a blower outlet (81), a feeding plate (84) having a plurality of substantially rectangular outlets (83) on the same circumference, and a discharge port ( 85), and each plate (82) (84) (86) made of a substantially circular flat plate is arranged in a multilayer between the feeding case (47) and the bottom lid (75). At the same time, the feeding shaft (87) is pivotally supported in the feeding case (47) so as to be substantially vertically rotatable, and the lower end side of the feeding shaft (87) is passed through the center of each plate (82) (84) (86). A rubber ring (88) is detachably locked to the lower end of the feeding shaft (87), the plates (82), (84), and (86) are supported on the feeding shaft (87) so as to be able to be pulled out downward, and a spring (74 ) Is used to repress each plate (82), (84) and (86), and the inlet plate (82) and the outlet plate (86) are fed out. The feeding shaft (87) is idled with respect to the plates (82) and (86), and the feeding plate (84) is supported on the feeding shaft (87) to be engaged with the feeding shaft (87). The feed plate (84) is forcibly rotated by (87), and the fertilizer (A) that has entered the feed port (83) from the intake port (80) is moved to the discharge port (85) in the direction of the exit port (78). It is configured to drop.
[0019]
In addition, the brush (89) is provided through a photograph (90) that is provided with a brush (89) that removes excess fertilizer (A) on the upper surface of the feed outlet (83) at the end of the intake (80). Is attached to the feeding case (47) so that the height can be adjusted, and the height of the lower end of the brush (89) with respect to the upper surface of the feeding plate (84) is adjusted from the outside of the feeding case (47), and the fertilizer (A) at the feeding outlet (83) It is configured to adjust the delivery amount.
[0020]
Further, a compressed air intake (91) that faces the air outlet (81) of the inlet plate (82) is formed in the feeding case (47), and the hollow portion of the fertilizer main body case (51) and the compressed air intake are formed. (91) is communicated by the diversion pipe (92), and the air blown from the turbo fan (50) is supplied to the blowout port (81) through the pipe (92) and the intake port (91), and the discharge port (85). The blower outlet (83) moved to the position is blown from the blower outlet (81), and the fertilizer (A) of the feed outlet (83) is forcibly dropped downward by the blown air, and the granular fertilizer (A) or this It is configured to prevent the powder from remaining in the feed outlet (83).
[0021]
Further, as shown in FIGS. 4, 5, and 16, the PTO shaft (93) for transmitting the output of the engine (2) to the planting part (15) extends rearward from the gear transmission case (4), and The bearing cylinder (94) is welded and fixed to the left side of the lift frame (40), and the front end portion of the fertilizer input shaft (95) of the bearing cylinder (94) is connected to the middle of the PTO shaft (93) via a chain (96). Let A crank plate (97) is fixed to the rear end portion of the fertilization input shaft (95). In addition, a square pipe-shaped rear frame (98) for integrally fixing the rear end sides of the bearing plate (58) and the case bracket (68) is provided, and the rear frame (98) is substantially parallel to the fertilizer body frame (51). The bearing (100) is fixed to the rear frame (98) via a bracket (99), and the feed amount adjustment lever (102) is rotatable to the bearing (100) via a fulcrum shaft (101). Let it pivot. The crank plate (97) and the feed amount adjustment lever (102) are provided with input and output rods (106) (107) that are detachably connected via a coupling lever (103) and engagement plates (104) (105). ) Are connected by the rods (106) (107).
[0022]
A feeding drive shaft (109) is rotatably supported on the rear frame (98) via a bearing plate (108), and a swing arm (110) is fixed to the driving shaft (109). The length adjusting lever (102) is connected to one end of the telescopic rod (111) whose length is adjustable, and the swing arm (110) is adjustable to the fulcrum distance via a plurality of shaft holes (112). A rotating lever (114) that connects the other end of the telescopic rod (111) and changes the ratio of the connecting distance between the output rod (107) and the telescopic rod to the fulcrum shaft (101) by the rotation of the screw (113). ) Is provided on the feed amount adjusting lever (102), and the length of the swing arm (110) connecting the telescopic rod (111) is changed by selecting the plurality of shaft holes (112). 110), the fertilizer feed amount is adjusted in multiple stages by changing the swing stroke, and the feed lever adjustment lever (102) is screwed (113) with respect to the fulcrum shaft (101) by operating the rotary lever (114). The length of the connecting point of the lever (102) and the rod (107) with respect to the fulcrum shaft (101) and the length of the connecting point of the lever (102) and the rod (111) with respect to the fulcrum shaft (101) The ratio is changed, and the reciprocating stroke of the telescopic rod (111) is changed steplessly to perform stepless adjustment of the fertilizer feed amount.
[0023]
Further, as shown in FIG. 14, the bearing (115) is bolted and fixed to the rear frame (98), and the clutch shaft (116) is pivoted to the bearing (115) via the accompanying one-way clutch (115a). An input link (118) is provided on the clutch shaft (116) via a one-way clutch (117), and a swing link (119) is fixed to the feeding drive shaft (109). ) Is connected to the input link (118) via the linkage bar (120), the input link (118) is rocked to intermittently rotate the clutch shaft (116) in one direction, and the input link (118) 118) The one-way clutch (117) to which the clutch is returned is rotated in the reverse direction of the clutch shaft (116), and the accompanying one-way clutch (115a) and the bearing (115) It is configured to be blocked by the braking action.
[0024]
The clutch case (121) is fixed to the feeding case (47), and the input shaft (124) is always connected to the upper end side of the feeding shaft (87) via bevel gears (122) (123). There is provided a latching clutch (125) for connecting the input shaft (124) to the clutch shaft (116) so as to be freely connectable and disengaged, and the clutch (125) is installed in the clutch case (121). The clutch lever (126) and the clutch arm (127) for performing the on / off operation of (125) are distributed to the front and rear of the clutch case (121), and the upper rear surface of the seedling mount (16) of the planting part (15) Through the wire (130) which is stretched by the outer receiver (129) of the rear frame (98) to the planting bar stop lever (128) provided in the section. Coupling the arm (127). Then, when any one of the planting claws (17) for 6-planting is stopped by operating the planting-line stopping lever (128), the line stopping clutch (17) corresponding to the stopped planting claw (17) ( 125) is cut to stop the fertilization operation, and the fertilizer is applied only to the strip where the seedling is planted by the planting claw (17). Fertilization is carried out from the four feeding cases (47) of the above, and by operating the clutch lever (126) by the operator to disconnect the hooking clutch (125), the six feeding cases (47). Any or all of them are arbitrarily selected, and fertilization can be stopped regardless of seedling planting.
[0025]
Further, as shown in FIGS. 17 and 18, two shafts (131) and (132) are fixed by welding to one engagement plate (104), and holes (133) and (133) in the other engagement plate (105) are fixed. Each of the shafts (131) and (132) is removably engaged, and the engagement shaft (135) is fixed to the hole (134) of one engagement plate (104) by welding to the other engagement plate (105). The coupling lever (103) is rotatably supported on one engagement plate (104) via the shaft (131) and coupled to the penetrating end of the engagement shaft (135). The lever (103) is detachably locked, the lever (103) is locked and held by the spring (136) on the engagement shaft (135), and the engagement plates (104) (105) are separably combined. Fix it. Then, when the fertilizer applicator (36) is supported at the lowered position of the elevating rail (56), the engagement plates (104) (105) fixed by the coupling lever (103) and the shafts (131) (132) (135). ), The input and output rods (106) and (107) are integrally connected to each other, the driving force is transmitted to the fertilizer applicator (36) via the rods (106) and (107), and the coupling lever ( 103) By releasing the lever (103) from the engagement shaft (135) by the release operation, the engagement plates (104) (105) are separated and the input and output rods (106) (107) are separated. The operation of raising the fertilizer applicator (36) to this raised position becomes possible by guiding the elevating rail (56). Therefore, after the operator operates the left and right release levers (67) and (67) with the hand holding the left and right handles (61) and (61), the handle (61) and (61) are lifted upward, thereby applying fertilizer. The machine (36) can be moved up to the upper end side of the elevating rail (56) and supported at the raised position.
[0026]
As is apparent from the above, when the fertilizer applicator (36) is attached to the traveling vehicle (1), the rear cover (45) is removed, and the center portion of the H-shaped base frame (53) in plan view is the rear end of the subframe (42). Bolts are fixed to the upper surface, and the left and right side stays (54) and (54) are bolted and fixed between the both sides of the subframe (42) and the lower left and right brackets (55) and (55). The base frame (53) is fixed via the link frame (40) almost directly above the case (7) and the rear axle (39). Then, bearing rollers (59) are fitted into the elevating rails (56) on the base frame (53) from the upper end opening, and the fertilizer application body frame (51) is passed through the rails (56) and the rollers (59). ) On the base frame (53) so as to be movable up and down, and between the left and right bearing plates (58) and (58) of the fertilizer body frame (51) and the left and right brackets (55) and (55), 57) (57) is bolted and fixed, and the fertilizer applicator (36) is supported by the gas spring (57). Next, the feed pipe (49) is connected between the side fertilizer chutes (48) of the floats (34) and (35) and the feeding case (47), and is fed by the blow of the turbo fan (50). The fertilizer (A) in the tank (46) taken out to the case is sent from the delivery pipe (49) to the side fertilizer chute (48), and the fertilizer (A) is placed adjacent to the seedling planting line by the planting claw (17). ) Is applied.
[0027]
As described above, by attaching the fertilizer applicator (36) using the link frame (40), the base frame (53) can be made compact and lightweight, and the fertilizer applicator (36) load is applied to the rear of the vehicle body frame (3). By supporting at the end, the fertilizer applicator (36) can be stably supported on the rear axle (39). Further, the fertilizer application machine (36) is received by the rear axle case (7) through the fertilizer main body frame (51) and the gas spring (57), so that the fertilizer application can be carried out at a strong and stable location on the traveling vehicle (1) side. (36) can be supported, and vibrations generated on the traveling vehicle (1) side can be absorbed by the gas spring (57). The shock absorber effect of the gas spring (57) facilitates stabilization of the fertilizer feed amount. And durability of a fertilizer applicator (36) main body can be improved.
[0028]
Furthermore, by supporting the fertilizer applicator (36) at the lowered position of the elevating rail (56), the fertilizer application (36) can be performed while supporting the fertilizer applicator (36) at a lower position on the upper surface of the vehicle body cover (12). On the other hand, by supporting the fertilizer applicator (36) at the raised position of the lifting rail (56), a container for receiving the fertilizer (A) remaining in the tank (46) can be easily inserted under the chute (72). It is possible to make the tank (46) close to the fertilizer main body frame (51) to easily make the vertical width of the fertilizer machine (36) compact and lower the center of gravity, and to lock the closing lever (73). The bottom cover (75) is removed downward by the release operation, the rubber ring (88) is removed, the inlet plate (82), the feeder plate (84) and the outlet plate (86) are removed downward from the feeder case (47). The plates (82) (84) (86) can be cleaned.
[0029]
Further, the engagement plate (104) (105) is separated by the unlocking operation of the coupling lever (103), the input rod (106) and the output rod (107) are separated, and the traveling vehicle (1) side and fertilizer are applied. The connection of the machine (36) is released without using a tool, and the fertilizer machine (36) can be raised by the guide of the elevating rail (56). Further, the connection between the swing arm (110) and the telescopic rod (111) by the shaft hole (112), and the ratio of the distance between the rods (107) and (111) to the fulcrum shaft (101) can be freely changed. By adjusting the feed amount adjusting lever (102), the rotational speed of the feed shaft (87) is changed in multiple steps or in a stepless manner with the rotational speed of the fertilizer input shaft (95) kept constant, and the feed plate (84 ) Fertilizer (A) can be adjusted in multiple stages or steplessly. In addition, the feeding case (47) facing the planting claw (17) that has stopped is only changed by changing the number of planting strips of the planting portion (15) by operating the stapling lever (128) of the planting portion (15). The fertilizer feed can be automatically stopped via the clutch arm (127), so that waste of fertilizer can be prevented and the clutch levers (126) respectively provided for the six feed cases (47). )... Can be arbitrarily turned on and off by the operator, and the fertilizer (A) feeding by the whole or part of the six feeding cases (47).
[0030]
Furthermore, in the riding rice transplanter in which the planting part (15) is installed on the rear side of the traveling vehicle (1) and the fertilizer (36) is provided on the rear side of the traveling vehicle (1) on the front side of the planting part (15). Elevating rails (56) and (56), which are left and right column members, are erected at the rear of the car (1), and the fertilizer body frame (51) of the fertilizer applicator (36) can be raised and lowered to the left and right lifting rails (56) and (56). Since the input rod (106) and the output rod (107) are separated by operating the coupling lever (103) and the drive connecting part is removed at one place, the delivery pipe (49) formed by the flexible hose is connected. Thus, the fertilizer applicator (36) can be raised. Further, during fertilization work performed simultaneously with rice transplanting work, it can be stably lowered and supported at the low position via the lifting rail (56), and the fertilizer application machine (36) is supported at the high position via the lifting rail (56). , Such as cleaning the feeding case (47) portion below the fertilizer applicator (36) and taking out residual fertilizer from the lower part of the hopper (46) of the fertilizer applicator (36) 13) It can be easily performed from the side, for example, to eliminate the dangerous work of an operator entering between the traveling vehicle (1) and the planting part (15) and lifting the fertilizer applicator (36), and to put residual fertilizer A large container can be easily put in and out of the lower part of the hopper (46) in the raised position from the driver's seat (13), and the fertilizer can be easily collected without spilling from the container.
[0031]
Further, the body frame (3) of the traveling vehicle (1) and the width of the base frame (53) of the fertilizer applicator (36) are formed to have substantially the same dimensions, and left and right support members are formed on both sides of the base frame (53). The elevating rails (56) and (56) are erected, and the elevating rail (56) is arranged in the left and right width of the traveling vehicle (1) to form a lightweight and compact configuration, and the manure supply work for the operator Space is secured around the fertilizer applicator (36), and the fertilizer applicator (36) can be safely supported using the full width in the left-right direction of the body frame (3), and the fertilizer applicator (36) support structure is made compact. Etc. can be easily planned.
[0032]
Furthermore, the lifting and lowering rails (56) and (56), which are left and right support members, are disposed on both sides of the feeding case (47) and (47) for the two strips of the fertilizer applicator (36). 56) A ferrule (36) for six strips is formed by arranging two strips of feeding cases (47) and (47) on the outer sides of the left and right machines of (56), respectively, thereby forming a six strip fertilizer (36). ) (47) as a unit, the even-numbered multiple fertilizer (36) can be easily mounted, and the left and right handles (61) (61) have a width that is most easily operated by the operator with both hands from the driver seat (13) side. ) Is provided on the fertilizer main body frame (51), the left and right handles (61) and (61) are arranged close to the outside of the left and right lifting rails (56) and (56). Thus, the lifting operation handle (61) gripped by the operator can be disposed near the left and right lifting rails (56) and (56), which are most advantageous in terms of handling and strength, and the elevating operability of the fertilizer applicator (36). Can be easily improved.
[0033]
Furthermore, the fertilizer applicator (36) is provided with a release lever (67) and a lock arm (63) which are locking members for fixing the fertilizer applicator (36) to the elevating rail (56) which is a support member at the raised position and the lowered position. The fertilizer applicator (36) can be handled safely by preventing it from moving up and down and locked to the handle (61) gripped by the operator when the fertilizer applicator (36) is moved up and down. An arm (63) is attached, a release lever (67) is provided in the vicinity of the handle (61), and the release lever (67) can be operated by the hand holding the handle (61) to release the lock. The up-and-down operation by (61) and the unlocking operation by the release lever (67) can be performed in series, and it is easy to use and the handle (61) and release lever (67) are formed separately. As a structure for releasing the locking operation of the Kkuamu (63) prevents malfunction unlocking is performed only by holding the handle (61), securely Toriatsukaieru. Further, since the lock arm (63) is locked to the lower end base of the elevating rail (56) at the lowering position of the fertilizer applicator (36), the fertilizer applicator (36) has a high support strength in a normal lowered position support state such as during fertilization work. Is fixed.
[0034]
【The invention's effect】
As apparent from the above-described embodiments, the present invention allows the planting part (15) to be installed on the rear side of the traveling vehicle (1) via the link mechanism (27) so as to be movable up and down, and the tank (46 ) And a fertilizer delivery machine (36) for delivering fertilizer is mounted on the rear part of the traveling vehicle (1), and fertilizer is planted by a delivery pipe (49) extending to the rear side of the fertilizer applicator (36). In the rice transplanter to be carried out to the section (15), the tank (46) supported by the traveling vehicle (1) to be movable up and down, the handle (61) for lifting and operating the feeding case (47), and the traveling vehicle (1) A release lever (67) for releasing the fixing support of the tank (46) and the feeding case (47) is provided separately.ManyA handle (61) is fixed to a cylindrical fertilizer body frame (51) to which a plurality of feeding cases (47) for a strip and a fan for blowing air (50) are attached,A fertilizer applicator (36) is attached to the traveling vehicle (1) through an elevating rail (56) so as to be movable up and down, and the fertilizer applicator (36) is supported at a lower position on the upper surface of the vehicle body cover (12) of the traveling vehicle (1). The fertilizer application is performed and the fertilizer machine (36) is supported at the raised position of the elevating rail (56) to receive the residual fertilizer in the tank (46).Therefore, it is possible to easily prevent a malfunction that is caused by releasing the fixing support of the tank (46) and the feeding case (47) only by grasping the handle (61) by the operator, and operating the release lever (67) and the handle. (61) By operation, the tank (46) and the feeding case (47) are moved to the fertilization work position and the non-working position where the residual fertilizer is taken out or maintained, and the work such as the residual fertilizer taking out or maintenance is simplified and handling operability The tank (46), the feeding case (47), and the fan (50) are provided on the fertilizer main body frame (51) that is long in the left-right direction to easily obtain a highly rigid structure. Can be easily blown from the fan (50) to the delivery pipe (49) using the hollow of the fertilizer body frame (51), and the operator can handle the handle ( 1) horizontally supporting the fertilization body frame (51) holds the can be raised and lowered to 乍Ra smoothly,The tank (46) is supported at a high position on the ascending side of the elevating rail (56) to increase the distance from the upper surface of the vehicle body cover (12), and workability such as removal of residual fertilizer or cleaning is improved.Improvements can be easily achieved.
[Brief description of the drawings]
FIG. 1 is a side view of a rear axle case portion.
FIG. 2 is an overall side view.
FIG. 3 is a plan view of the same.
FIG. 4 is a side view of a traveling vehicle.
FIG. 5 is a plan view of the same.
FIG. 6 is a rear view of a fertilizer applicator unit.
FIG. 7 is a side view of a base frame portion.
FIG. 8 is a rear view of the same.
FIG. 9 is a plan view of the same.
10 is an enlarged view of FIG.
FIG. 11 is a side view of a fertilizer applicator.
FIG. 12 is a side view of a feeding case portion.
FIG. 13 is a rear view of the same.
14 is an enlarged view of FIG.
FIG. 15 is a plan view of a feeding case portion.
FIG. 16 is a side view of a fertilizer applicator driving unit.
FIG. 17 is a rear view of the drive input unit.
FIG. 18 is an exploded side view of the same part.
[Explanation of symbols]
(1) Traveling vehicle
(15) Planting part
(27) Link mechanism
(36) Fertilizer applicator
(44)  After step
(46) Tank
(47) Feeding case
(49) Delivery pipe
(50)  Blower turbo fan
(51)  Fertilizer body frame
(56)  Elevating rail (post member)
(61) Toride
(67) Release lever

Claims

A planting portion (15) is installed on the rear side of the traveling vehicle (1) via a link mechanism (27) so as to be movable up and down, and a tank (46) for containing fertilizer and a feeding case (47) for feeding the fertilizer are provided. In the rice transplanter in which the fertilizer to be provided (36) is mounted on the rear part of the traveling vehicle (1), and the fertilizer is carried out to the planting part (15) by the delivery pipe (49) extending to the rear side of the fertilizer applicator (36). A handle (61) for lifting the tank (46) and the feeding case (47) supported by the traveling vehicle (1) so as to be movable up and down, and the tank (46) and the feeding case (47) for the traveling vehicle (1). the release lever for releasing the fixed support (67) is provided on each other, the handle (61) to a plurality of feeding cases (47) and tubular fertilization body frame for mounting the blowing fan (50) for a multi-strip (51) It was fixed, the run A fertilizer applicator (36) is attached to the vehicle (1) through a lifting rail (56) so as to be movable up and down, and the fertilizer applicator (36) is supported at a lower position on the upper surface of the vehicle body cover (12) of the traveling vehicle (1). A rice transplanter configured to receive the residual fertilizer in the tank (46) while performing work and supporting the fertilizer applicator (36) at the raised position of the lifting rail (56) .