JP3657394B2 - Rice transplanter - Google Patents

Rice transplanter Download PDF

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Publication number
JP3657394B2
JP3657394B2 JP15029697A JP15029697A JP3657394B2 JP 3657394 B2 JP3657394 B2 JP 3657394B2 JP 15029697 A JP15029697 A JP 15029697A JP 15029697 A JP15029697 A JP 15029697A JP 3657394 B2 JP3657394 B2 JP 3657394B2
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hitch
planting
base
rolling
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JPH10323106A (en
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岡 秀 樹 松
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Yanma Agricultural Equipment Co Ltd
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Yanma Agricultural Equipment Co Ltd
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Description

【0001】
【発明の属する技術分野】
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、トップリンク及びロワーリンクを介して走行車に植付部を昇降自在に装設させると共に、ローリング自在に取付ける植付部の左右傾斜を調節するローリングシリンダを設ける技術があるが、前記リンクのヒッチにヒッチ台を着脱自在に設けてヒッチ台にローリング支点軸を介して植付部の植付ケースを連結させることにより、植付部荷重がローリング支点軸取付部に集中して損傷させ易く、10条植え等の大型植付部の支持強度向上並びに支持構造の簡略化を容易に図り得ないと共に、ローリング支点軸の長さが制限されて軸受ベアリング支持力が過大になり易い不具合がある。また、植付部側にローリングシリンダを取付けるから、植付部を外したとき、走行車側に接続させるローリングシリンダの油圧ホースを外す面倒な作業を行う必要があると共に、ヒッチ台をヒッチに弾圧支持させることにより衝撃力によってヒッチ台が機械振動し易い不具合がある。
【0003】
【課題を解決するための手段】
請求項1に係る発明は、トップリンク及びロワーリンクを介して走行車に植付部を昇降自在に装設させ、前記各リンクを連結させる前ヒッチを設け、前ヒッチにローリング支点軸を介して後ヒッチを連結させると共に、後ヒッチに着脱自在に連結させるヒッチ台を植付部に取付け、クイックヒッチピン及びクイックヒッチフックを介して後ヒッチに前ヒッチ台を着脱自在に係止させるように構成し、前後ヒッチ下端部を前ローリング支点軸によって連結させると共に、前後ヒッチの各上端部間をローリングシリンダにて連結してなる田植機において、凹形ノッチを有するノッチ板を前ヒッチ台下端部前面に固定させ、前記ヒッチ台に支軸を介してロックボルト基端を連結させると共に、前記クイックヒッチピンに一対のロック板を固定させ、前一対のロック板間に前ロックボルト先端部を挿入させ、前ロックボルト先端のナットを前ロック板前面に当接させるように構成したもので、前記ヒッチ台と植付部の連結強度を容易に向上させ得、かつ前後ヒッチ間に設けるローリング支点軸の軸受長さを容易に確保し得、ローリング支点軸及び軸受の許容荷重を容易に増大させ得、大型植付部の支持強度向上並びに支持構造の簡略化などを容易に行い得る。また、ヒッチ台に設けるロックボルトを後ヒッチに着脱自在に固定させたもので、着脱自在なヒッチ台の機械振動をロックボルトの固定にて容易に阻止し得るものである。
【0004】
【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は乗用田植機の側面図、図2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、ミッションケース(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、乗降ステップ(11)を介して作業者が搭乗する車体カバー(12)によって前記ミッションケース(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10条植え用の苗載台(16)並びに10条分の植付爪(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)の前側にヒッチ台(23)を設け、該ヒッチ台(23)をヒッチ機構(24)に連結させ、トップリンク(25)及びロワーリンク(26)を含むリンク機構(27)後部にヒッチ機構(24)を取付け、走行車(1)後側にリンク機構(27)を介して植付部(15)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)は走行変速レバー、(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10条用の側条施肥機である。
【0007】
さらに、図2、図3、図4に示す如く、前記運転席(13)両側の車体カバー(12)両側に左右補助デッキ(37)(37)を固定させ、該デッキ(37)(37)前部に前記乗降ステップ(11)(11)を固定させ、前記補助デッキ(37)(37)後部の機外側に左右サイドデッキ(38)(38)を起伏自在かつ脱着自在に連結させると共に、6条用の中央施肥部(39)と、各2条用の左右施肥部(40)(40)とに、前記施肥機(36)を分割して構成し、右施肥部(40)機外側に送肥ブロワ(41)を配設させ、運転席(13)両側にレバー(29)(30)(31)取付け位置を隔てて左右施肥部(40)(40)を収納する一方、6条分の中央苗台(42)と各2条分の左右苗台(43)(43)とに苗載台(16)を分割して形成し、苗台支点軸(44)(44)回りに左右苗台(43)(43)を上昇させて中央苗台(42)上側に折畳み収納させ、また2条分の植付爪(17)…及びフロート(35)を備える左右植付ケース(20)(20)を中央苗台(42)後側にケース支点軸(45)回りに回動させて折畳み収納させるように構成している。
【0008】
さらに、図3乃至図6に示す如く、前記の左右一対の車体フレーム(3)(3)後端部上側に正面視門形のヒッチフレーム(46)を固定させ、前低後高に傾斜させて後端部をヒッチフレーム(46)中間に固定させる左右一対のサブフレーム(47)(47)の間に前記昇降シリンダ(28)を取付けると共に、車体フレーム(3)後端部に支軸(48)を介して前記ロワーリンク(26)前部を回転自在に取付け、またヒッチフレーム(46)中間のブラケット(49)に支軸(50)を介してトップリンク(25)前部を回転自在に取付けるもので、前記ロワーリンク(26)前端部の本機支持部に基板(51)を立設させ、基板(51)上端とロワーリンク(26)間にリンクフレーム(52)を側面視三角形に連結させて固定させ、前記三角形頂角の基板(51)とリンクフレーム(52)の連結固定部にピン(53)を介して昇降シリンダ(28)のピストンロッド(28a)を連結させている。
【0009】
さらに、図3、図4、図7乃至図9に示す如く、前記ロワーリンク(26)の後端二叉部間に支軸(54)を介して前ヒッチ(55)下端部を連結させ、前ヒッチ(55)の上下長さ中間に貫通させる支軸(56)両端部にトップリンク(25)後端二叉部を連結させると共に、前ヒッチ(55)下端部に受筒(57)を一体固定させ、ローリング支点軸(58)の前半部を受筒(57)に軸受ベアリング(59)を介して回転自在に軸支させる一方、後ヒッチ(60)の下端部に受筒(61)を一体固定させ、該受筒(61)にローリング支点軸(58)の後半部を貫挿固定させる。
【0010】
また、図10にも示す如く、前ヒッチ(55)上端部に受枠(62)を介して油圧ローリングシリンダ(63)を取付け、後ヒッチ(60)上端部で一側に突出させる受フレーム(64)にローリングシリンダ(63)のピストン(65)先端を連結させ、ピストン(65)の進退動作制御によってローリング支点軸(59)回りに後ヒッチ(60)を左右に揺動させると共に、後ヒッチ(60)下端部にクイックヒッチピン(66)を固定させ、後ヒッチ(60)上端部に上向き凹形のクイックヒッチフック(67)を固定させるもので、前記植付部(15)の中央植付ケース(20)前面部にブラケット(68)を介してヒッチ台(69)下端部を固定させ、前向き凹形ノッチ(70)を有するノッチ板(71)をヒッチ台(69)下端部前面に固定させ、またヒッチ台(69)上端部にヒッチ軸(72)を横架させ、前記クイックヒッチピン(66)にノッチ(70)を後方から嵌合させ、前記クイックヒッチフック(67)にヒッチ軸(72)を上方から嵌合させ、後ヒッチ(60)にヒッチ台(69)を着脱自在に連結させ、前記ローリング支点軸(59)回りにローリング自在に植付部(15)を取付け、ローリングシリンダ(63)制御により植付部(15)の左右傾斜調節を行うと共に、前記車体フレーム(3)後部と植付ケース(20)の間に植付PTO軸(73)を着脱自在に架設し、ミッションケース(4)の植付駆動力を植付ケース(20)にPTO軸(73)を介して伝えるように構成している。
【0011】
また、図8、図9に示す如く、前記ヒッチ台(69)に支軸(74)を介してロックボルト(75)基端を回転自在に連結させると共に、前記クイックヒッチピン(66)に一対二組のロック板(76)…を固定させ、一対のロック板(76)(76)間に上方からロックボルト(75)先端部を挿入させ、ロックボルト(75)先端のナット(77)をロック板(76)前面に螺着当接させ、ナット(77)の締付け固定によってクイックヒッチピン(66)とノッチ(70)を嵌合固定させ、後ヒッチ(60)にヒッチ台(69)を一体固定させて衝撃などによるヒッチ台(69)の機械振動を防ぐように構成している。
【0012】
上記から明らかなように、トップリンク(25)及びロワーリンク(26)を介して走行車(1)に植付部(15)を昇降自在に装設させる田植機において、前記各リンク(25)(26)を連結させる前ヒッチ(55)を設け、前ヒッチ(55)にローリング支点軸(59)を介して後ヒッチ(60)を連結させると共に、後ヒッチ(60)に着脱自在に連結させるヒッチ台(69)を植付部(15)に取付け、前記ヒッチ台(69)と植付部(15)の連結強度を容易に向上させ、かつ前後ヒッチ(55)(60)間に設けるローリング支点軸(59)の軸受長さを容易に確保し、ローリング支点軸(59)及び軸受の許容荷重を容易に増大させ、大型植付部(15)の支持強度向上並びに支持構造の簡略化などを容易に行えると共に、植付部(15)の左右傾斜を調節するローリングシリンダ(63)などのローリング制御機構を走行車(1)側に前後ヒッチ(55)(60)を介して取付け、走行車(1)側にローリング制御機構を残した状態で植付部(15)を取外せるように構成している。
【0013】
また、クイックヒッチピン(66)及びクイックヒッチフック(67)を介して後ヒッチ(60)にヒッチ台(69)を着脱自在に係止させるように構成し、前記リンク(25)(26)の昇降操作によって後ヒッチ(60)にヒッチ台(69)を係脱させる動作を行わせると共に、前ヒッチ(55)と後ヒッチ(60)の相対角度を変更するローリング制御用アクチュエータであるローリングシリンダ(63)を設け、前記ローリングシリンダ(63)の動力源を走行車(1)側で確保し乍ら植付部(15)脱着作業性の向上などを容易に行得るもので、前後ヒッチ(55)(60)下端部をローリング支点軸(59)によって連結させると共に、前後ヒッチ(55)(60)の各上端部間をローリングシリンダ(63)によって連結させ、ローリングシリンダ(63)及び油圧ホースなどを前記リンク(25)(26)に取付けた状態で植付部(15)を脱着できると共に、後ヒッチ(60)またはヒッチ台(69)のいずれか一方に設けるロックボルト(75)をもう一方に着脱自在に固定させ、着脱自在なヒッチ台(69)の機械振動をロックボルト(75)の固定によって容易に阻止できるように構成している。
【0014】
さらに、前記支軸(50)に前端側を連結させるパイプ形前フレーム(78)と、前記の前ヒッチ(55)に中間を貫挿させた支軸(56)両端に連結させる左右一対の平板形後フレーム(79)(79)と、後フレーム(79)前端部に固定させるモータベース(80)と、該モータベース(80)に取付ける電動ピッチングモータ(81)と、該モータ(81)の出力軸(82)に固定させるネジ軸(83)を、前記トップリンク(25)に備える。そして、前記ネジ軸(83)先端をナット体(84)に螺着挿入させ、前フレーム(78)後部内孔にナット体(84)前部を着脱自在にインロー嵌合させ、前フレーム(78)後部のフランジ(85)とナット体(84)前部のフランジ(86)を着脱自在にボルト(87)止め固定させ、前記ピッチングモータ(81)制御によりネジ軸(83)を正逆転させてトップリンク(25)前後長を変更し、前後ヒッチ(55)(60)及びヒッチ台(69)及び植付部(15)を前後に傾斜させ、植付部(15)の前後傾斜角調節によってフロート(34)(35)の接地姿勢を修正すると共に、モータベース(80)にセンサフレーム(88)を連設させ、ポテンショメータ形伸縮センサ(89)をフレーム(88)に取付け、該センサ(89)によってトップリンク(25)長さを検出させるように構成している。
【0015】
また、後フレーム(79)(79)左右外側に軸体(90)を介して左右バネ座(91)(91)を固定させ、左右バネ座(91)(91)にテンション調節ボルト(92)(92)を介して左右リンクバネ(93)(93)後端を連結させると共に、前記支軸(50)両端部に左右リンクバネ(93)(93)前端を連結させ、側面視で各支軸(50)(56)を結ぶ直線上にリンクバネ(93)を張設させ、植付部(15)重量に抗してトップリンク(25)を縮少させるモータ(81)負荷をリンクバネ(93)のトップリンク(25)縮少方向の縮少力によって低減させるように構成している。さらに、前記モータベース(80)両側と支軸(56)両端部の間に連結させる左右の後フレーム(79)(79)を前後方向に略一直線上で延設させ、各フレーム(79)(79)を略平行に延長させて植付部(15)支持強度を確保するように構成している。
【0016】
さらに、図5、図6に示す如く、前記ロワーリンク(26)前部側面に支点軸(94)を介して引上アーム(95)(96)を回転自在に軸支させ、ターンバックル付長さ調節自在なフレキシブルワイヤ(97)を介して引上アーム(95)を車体フレーム(3)後部に連結させ、植付部(15)両側の左右サイドマーカアーム(図示省略)に引上ワイヤ(98)を介して引上アーム(96)を連結させ、ロワーリンク(26)の上昇によって引上ワイヤ(98)が引張られてサイドマーカ(図示省略)を上昇させると共に、前記リンクフレーム(52)側面に支軸(99)を介してロックアーム(100)を回転自在に取付け、支軸(99)を介してロックアーム(100)に解除アーム(101)を固定させ、解除アーム(101)に解除ワイヤ(102)を連結させ、副変速レバー(30)の左右切換操作により解除ワイヤ(102)を引張り、ロワーリンク(26)上昇により引上アーム(96)の係合軸体(103)がサイドマーカ引上げ位置に係止されているロックアーム(100)を解除動作させ、左右いずれか一方の解除操作されたサイドマーカを接地させ、次工程圃場面に次工程植付け軌跡を描かせるもので、植付部(15)上昇動作によってサイドマーカを自動的に上昇させ、ロックアーム(100)に軸体(103)を係合させてサイドマーカを上昇維持する一方、前記レバー(30)の植付部(15)下降操作後のサイドマーカ選択操作によって左右いずれかのロックアーム(100)を解除動作させてサイドマーカを下降着地させるように構成している。
【0017】
【発明の効果】
以上実施例から明らかなように、請求項1に係る発明は、トップリンク(25)及びロワーリンク(26)を介して走行車(1)に植付部(15)を昇降自在に装設させる田植機において、前記各リンク(25)(26)を連結させる前ヒッチ(55)を設け、前ヒッチ(55)にローリング支点軸(59)を介して後ヒッチ(60)を連結させると共に、後ヒッチ(60)に着脱自在に連結させるヒッチ台(69)を植付部(15)に取付け、クイックヒッチピン(66)及びクイックヒッチフック(67)を介して後ヒッチ(60)に前記ヒッチ台(69)を着脱自在に係止させるように構成し、前後ヒッチ下端部を前記ローリング支点軸によって連結させると共に、前後ヒッチ(55)(60)の各上端部間をローリングシリンダ(63)にて連結してなる田植機において、凹形ノッチ(70)を有するノッチ板(71)を前記ヒッチ台(69)下端部前面に固定させ、前記ヒッチ台(69)に支軸(74)を介してロックボルト(75)基端を連結させると共に、前記クイックヒッチピン(66)に一対のロック板(76)を固定させ、前記一対のロック板(76)間に前記ロックボルト(75)先端部を挿入させ、前記ロックボルト(75)先端のナット(77)を前記ロック板(76)前面に当接させるように構成したもので、前記ヒッチ台(69)と植付部(15)の連結強度を容易に向上させることができ、かつ前後ヒッチ(55)(60)間に設けるローリング支点軸(59)の軸受長さを容易に確保でき、ローリング支点軸(59)及び軸受の許容荷重を容易に増大させることができ、大型植付部(15)の支持強度向上並びに支持構造の簡略化などを容易に行うことができる。また、ヒッチ台(69)に設けるロックボルト(75)を後ヒッチ(60)に着脱自在に固定させたもので、着脱自在なヒッチ台(69)の機械振動をロックボルト(75)の固定によって容易に阻止できるものである。
【図面の簡単な説明】
【図1】田植機の全体側面図である。
【図2】同平面図である。
【図3】リンク機構の側面図である。
【図4】同平面説明図である。
【図5】リンク機構前部の側面図である。
【図6】同平面図である。
【図7】リンク機構後部の側面図である。
【図8】同部分側面図である。
【図9】リンク機構後部の正面説明図である。
【図10】同部分正面図である。
【図11】トップリンクの平面図である。
【図12】同側面図である。
【図13】同拡大側面図である。
【符号の説明】
(1)走行車
(15)植付部
(25)トップリンク
(26)ロワーリンク
(55)前ヒッチ
(59)ローリング支点軸
(60)後ヒッチ
(63)ローリングシリンダ
(66)クイックヒッチピン
(67)クイックヒッチフック
(69)ヒッチ台
(75)ロックボルト
(76)ロック板
(77)ナット
[0001]
BACKGROUND OF THE INVENTION
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, there is a technique of installing a planting part on a traveling vehicle via a top link and a lower link so that the planting part can be moved up and down, and a rolling cylinder that adjusts the right and left inclination of the planting part that is mounted so as to be able to roll freely. By installing the hitch base on the hitch in a detachable manner and connecting the planting case of the planting part to the hitch base via the rolling fulcrum shaft, the planting part load concentrates on the rolling fulcrum shaft mounting part and is easily damaged. There is a problem that the support strength of a large planting part such as a ten-row planting cannot be easily improved and the support structure can be easily simplified, and the length of the rolling fulcrum shaft is limited and the bearing bearing support force tends to be excessive. Also, since the rolling cylinder is installed on the planting part side, when the planting part is removed, it is necessary to perform the troublesome work of removing the hydraulic hose of the rolling cylinder to be connected to the traveling vehicle side, and the hitch stand is pressed against the hitch. There is a problem that the hitch base easily vibrates due to the impact force by supporting it.
[0003]
[Means for Solving the Problems]
Invention according to claim 1, via the top link and lower link vertically movably to So設planting portion in the traveling vehicle, before Symbol provided hitch prior to connecting the links, via a rolling pivot axis in front hitch with linking the rear hitch Te, a hitch mount for removably coupled to the rear hitch mounted on the planting unit, so as to locked freely engaged removably pre Symbol hitch stand to the rear hitch through the quick hitch pin and a quick hitch hook configured, the linking by the previous SL rolling fulcrum shaft front and rear hitch lower end, the rice transplanters formed by connecting the respective upper ends of the front and rear hitch at a rolling cylinder, before Symbol hitch mount the notch plate having a concave notch Fix to the front of the lower end, connect the base end of the lock bolt to the hitch base via a support shaft, and fix a pair of lock plates to the quick hitch pin Was, prior Symbol injects the previous SL locking bolt tip pair of locking plates, obtained by constituting the front Symbol lock bolt tip of the nut so as to pre-Symbol locking plate abuts the front surface, the hitch mount and planting The connection strength of the part can be improved easily, the bearing length of the rolling fulcrum shaft provided between the front and rear hitch can be easily secured, the allowable load of the rolling fulcrum shaft and the bearing can be easily increased, and the large planting part Thus, it is possible to easily improve the support strength and simplify the support structure. Further, the lock bolt provided on the hitch base is detachably fixed to the rear hitch, and mechanical vibration of the detachable hitch base can be easily prevented by fixing the lock bolt.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a passenger rice transplanter, and FIG. 2 is a plan view thereof. In FIG. 1, (1) is a traveling vehicle on which an operator is boarded, and an engine (2) is mounted on the upper part of the front of the body frame (3). A front axle case (5) for supporting the front wheel (6) for paddy field travel in front of the transmission case (4), and a rear axle case (7) connected to the rear of the gear transmission case (4), Paddy field traveling rear wheels (8) are supported on the rear axle case (7). The spare seedling platforms (10) are attached to both sides of the bonnet (9) covering the engine (2) and the like, and the transmission case (4) is mounted by the vehicle body cover (12) on which the operator gets on via the getting-on / off 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 stand (16) for ten-row planting and a planting claw (17) for ten strips, etc. A rotary case (in which a tilted seedling mounting table (16) is supported by a planting case (20) through a lower rail (18) and a guide rail (19) so as to be slidable in a reciprocating manner in the left-right direction and is rotated at a constant speed in one direction ( 21) is supported by the planting case (20), and a pair of claw cases (22) and (22) are arranged at symmetrical positions around the rotation axis of the case (21). The claw case (22) (22) Attach the planting claws (17) and (17) to the tip. Further, a hitch stand (23) is provided on the front side of the planting case (20), the hitch stand (23) is connected to the hitch mechanism (24), and includes a top link (25) and a lower link (26). (27) A hitch mechanism (24) is attached to the rear, a planting part (15) is connected to the rear side of the traveling vehicle (1) via a link mechanism (27), and planted via the link mechanism (27). A lifting cylinder (28) for raising and lowering the part (15) is connected to the lower link (26), and the front and rear wheels (6) and (8) are driven to move, and at the same time, a seedling stage that is reciprocated to the left and right ( The seedlings for one stock from 16) are taken out by the planting claws (17), and the seedlings are continuously planted.
[0006]
In the figure, (29) is a traveling speed change lever, (30) is a sub-shifting lever for planting lifting and working traveling speed change, (31) is a planting sensitivity adjusting lever, (32) is a 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 10 strips.
[0007]
Further, as shown in FIGS. 2, 3 and 4, left and right auxiliary decks (37) and (37) are fixed to both sides of the vehicle body cover (12) on both sides of the driver seat (13), and the decks (37) and (37) are fixed. The boarding steps (11) and (11) are fixed to the front, and the left and right side decks (38) and (38) are connected to the rear side of the rear side of the auxiliary decks (37) and (37) in a undulating and detachable manner, The fertilizer (36) is divided into a central fertilizer section (39) for six strips and left and right fertilizer sections (40) (40) for two strips, and the right fertilizer section (40) outside the machine The fertilizer feed blower (41) is disposed in the left and right fertilizers (40) (40) with the levers (29), (30), (31) being mounted on both sides of the driver's seat (13). On the center nursery stand (42) and the left and right seedling stands (43) (43) for each of the two strips. The left and right nurseries (43) and (43) are raised around the seedling fulcrum shafts (44) and (44), folded and stored above the center nursery bed (42), and planted for two strips. The left and right planting cases (20) and (20) having the claws (17) and the float (35) are rotated around the case fulcrum shaft (45) on the rear side of the center seedling stand (42) so as to be folded and stored. It is composed.
[0008]
Further, as shown in FIGS. 3 to 6, a front-view portal hitch frame (46) is fixed to the upper side of the rear end of the pair of left and right body frames (3) and (3), and is tilted to the front low and rear high. The lifting cylinder (28) is mounted between a pair of left and right subframes (47) (47) for fixing the rear end portion to the middle of the hitch frame (46), and a support shaft ( 48), and the front part of the lower link (26) is rotatably attached to the bracket (49) in the middle of the hitch frame (46), and the front part of the top link (25) is rotatable via the support shaft (50). The substrate (51) is erected on the machine support portion at the front end of the lower link (26), and the link frame (52) is triangular in the side view between the upper end of the substrate (51) and the lower link (26). Connect to and fix Wherein and substrate triangle apex angle (51) via a pin (53) to the connecting fixing portion of the link frame (52) is connected to a piston rod (28a) of the lifting cylinder (28).
[0009]
Further, as shown in FIGS. 3, 4, 7 to 9, a lower end portion of the front hitch (55) is connected between the rear end bifurcated portions of the lower link (26) via a support shaft (54), The top link (25) and the rear end bifurcated portion are connected to both ends of the support shaft (56) passing through the middle of the vertical length of the front hitch (55), and the receiving tube (57) is connected to the lower end of the front hitch (55). The front half of the rolling fulcrum shaft (58) is rotatably supported by the receiving tube (57) via the bearing bearing (59), while the receiving tube (61) is attached to the lower end of the rear hitch (60). Are integrally fixed, and the latter half portion of the rolling fulcrum shaft (58) is inserted into and fixed to the receiving tube (61).
[0010]
Also, as shown in FIG. 10, a hydraulic rolling cylinder (63) is attached to the upper end of the front hitch (55) via a receiving frame (62), and the receiving frame (64) is projected to one side at the upper end of the rear hitch (60). ) Is connected to the tip of the piston (65) of the rolling cylinder (63), and the rear hitch (60) is swung left and right around the rolling fulcrum shaft (59) by the forward / backward movement control of the piston (65). 60) A quick hitch pin (66) is fixed to the lower end portion, and an upward concave quick hitch hook (67) is fixed to the upper end portion of the rear hitch (60). The central planting case of the planting portion (15) (20) The lower end portion of the hitch base (69) is fixed to the front portion via the bracket (68), and the notch plate (71) having the forward concave notch (70) is fixed to the lower end of the hitch base (69). The hitch shaft (72) is horizontally mounted on the upper end of the hitch base (69), the notch (70) is fitted to the quick hitch pin (66) from the rear, and the quick hitch hook (67) is fixed. The hitch shaft (72) is fitted from above, the hitch base (69) is detachably connected to the rear hitch (60), and the planting portion (15) is mounted so as to be rotatable about the rolling fulcrum shaft (59). The planting part (15) is controlled to be tilted horizontally by controlling the rolling cylinder (63), and the planting PTO shaft (73) is detachable between the rear part of the body frame (3) and the planting case (20). It is constructed so that the planting driving force of the mission case (4) is transmitted to the planting case (20) via the PTO shaft (73).
[0011]
As shown in FIGS. 8 and 9, a lock bolt (75) base end is rotatably connected to the hitch base (69) via a support shaft (74), and the quick hitch pin (66) is paired with one to two. The lock plate (76) of the set is fixed, the tip of the lock bolt (75) is inserted between the pair of lock plates (76) (76) from above, and the nut (77) at the tip of the lock bolt (75) is locked. The quick hitch pin (66) and the notch (70) are fitted and fixed by screwing and abutting the front surface of the plate (76), and the nut (77) is fixed, and the hitch base (69) is fixed integrally to the rear hitch (60). Thus, the mechanical vibration of the hitch base (69) due to impact or the like is prevented.
[0012]
As is apparent from the above, in the rice transplanter in which the traveling part (15) is installed in the traveling vehicle (1) through the top link (25) and the lower link (26) so as to be able to move up and down, each link (25) A front hitch (55) for connecting (26) is provided, and the rear hitch (60) is connected to the front hitch (55) via the rolling fulcrum shaft (59) and is also detachably connected to the rear hitch (60). Rolling which attaches a hitch stand (69) to a planting part (15), improves the connection strength of the hitch stand (69) and the planting part (15) easily, and is provided between the front and rear hitch (55) (60) The bearing length of the fulcrum shaft (59) is easily secured, the allowable load of the rolling fulcrum shaft (59) and the bearing is easily increased, the support strength of the large planting part (15) is improved, and the support structure is simplified. Can be done easily, A rolling control mechanism such as a rolling cylinder (63) that adjusts the right and left inclination of the attachment (15) is attached to the traveling vehicle (1) via the front and rear hitches (55) (60), and is rolled to the traveling vehicle (1). It is comprised so that the planting part (15) can be removed in the state which left the control mechanism.
[0013]
Further, the hitch base (69) is detachably locked to the rear hitch (60) through the quick hitch pin (66) and the quick hitch hook (67), and the links (25) (26) are lifted and lowered. A rolling cylinder (63), which is a rolling control actuator that changes the relative angle between the front hitch (55) and the rear hitch (60) while causing the rear hitch (60) to engage and disengage the hitch base (69) by operation. ) And securing the power source of the rolling cylinder (63) on the traveling vehicle (1) side, the planting part (15) can be easily attached and detached, and the front and rear hitch (55) (60) The lower end portion is connected by the rolling fulcrum shaft (59), and the upper end portions of the front and rear hitches (55) (60) are connected by the rolling cylinder (63). The planting part (15) can be detached and attached to either the rear hitch (60) or the hitch stand (69) with the rolling cylinder (63) and the hydraulic hose attached to the link (25) (26). The provided lock bolt (75) is detachably fixed to the other, and the mechanical vibration of the detachable hitch base (69) can be easily prevented by fixing the lock bolt (75).
[0014]
Furthermore, a pipe-shaped front frame (78) for connecting the front end side to the support shaft (50), and a pair of left and right flat plates connected to both ends of the support shaft (56) inserted through the front hitch (55) in the middle. The rear frame (79) (79), the motor base (80) fixed to the front end of the rear frame (79), the electric pitching motor (81) attached to the motor base (80), and the motor (81) The top link (25) includes a screw shaft (83) that is fixed to the output shaft (82). Then, the tip end of the screw shaft (83) is screwed and inserted into the nut body (84), and the front portion of the nut body (84) is detachably fitted into the rear inner hole of the front frame (78), and the front frame (78 ) The rear flange (85) and the nut body (84) front flange (86) are detachably fixed with bolts (87), and the screw shaft (83) is rotated forward and backward by the pitching motor (81) control. By changing the front / rear length of the top link (25), the front / rear hitch (55) (60), the hitch stand (69) and the planting part (15) are tilted back and forth, and the front / rear tilt angle of the planting part (15) is adjusted. The grounding posture of the floats (34) and (35) is corrected, the sensor frame (88) is connected to the motor base (80), the potentiometer type expansion / contraction sensor (89) is attached to the frame (88), and the sensor ( It is configured so as to detect the top link (25) length by 9).
[0015]
The left and right spring seats (91) and (91) are fixed to the left and right outer sides of the rear frames (79) and (79) via the shaft body (90), and the tension adjusting bolt (92) is attached to the left and right spring seats (91) and (91). The rear ends of the left and right link springs (93) and (93) are connected via (92), and the front ends of the left and right link springs (93) and (93) are connected to both ends of the support shaft (50). A link spring (93) is stretched on a straight line connecting the shafts (50) and (56), and the load of the motor (81) that contracts the top link (25) against the weight of the planting part (15) is applied to the link spring. The top link (25) of (93) is configured to be reduced by the reduction force in the reduction direction. Further, left and right rear frames (79) (79) connected between both sides of the motor base (80) and both ends of the support shaft (56) extend in a substantially straight line in the front-rear direction, and each frame (79) ( 79) is extended substantially in parallel to secure the planting portion (15) support strength.
[0016]
Further, as shown in FIGS. 5 and 6, the pull-up arm (95) (96) is rotatably supported on the front side surface of the lower link (26) via a fulcrum shaft (94), thereby providing a length with a turnbuckle. The pull-up arm (95) is connected to the rear part of the vehicle body frame (3) through a flexible wire (97) that can be adjusted in height, and the pull-up wire (15) is connected to the left and right side marker arms (not shown) on both sides. 98) is connected to the pull-up arm (96), and the pull-up wire (98) is pulled by raising the lower link (26) to raise the side marker (not shown), and the link frame (52). The lock arm (100) is rotatably attached to the side surface via the support shaft (99), the release arm (101) is fixed to the lock arm (100) via the support shaft (99), and the release arm (101) is fixed. Solution The wire (102) is connected, the release wire (102) is pulled by the left / right switching operation of the sub-transmission lever (30), and the engagement shaft (103) of the pull-up arm (96) is moved to the side by raising the lower link (26). The lock arm (100) locked at the marker pulling position is released, and either the left or right release side marker is grounded, and the next process planting scene is drawn in the next process field scene. Attached part (15) The side marker is automatically raised by the raising operation, and the shaft (103) is engaged with the lock arm (100) to keep the side marker raised, while the planting part of the lever (30) (15) It is configured such that either the left or right lock arm (100) is released by the side marker selection operation after the lowering operation and the side marker is lowered and landed.
[0017]
【The invention's effect】
As is apparent from the above-described embodiments, the invention according to claim 1 is configured such that the planting portion (15) is mounted on the traveling vehicle (1) through the top link (25) and the lower link (26) so as to be movable up and down. In the rice transplanter, a front hitch (55) for connecting the links (25) and (26) is provided, and a rear hitch (60) is connected to the front hitch (55) via a rolling fulcrum shaft (59). A hitch stand (69) to be detachably connected to the hitch (60) is attached to the planting part (15), and the hitch stand (60) is connected to the rear hitch (60) via a quick hitch pin (66) and a quick hitch hook (67). 69) is configured to be detachably locked, and the lower ends of the front and rear hitch are connected by the rolling fulcrum shaft, and the rolling cylinder (6) is connected between the upper ends of the front and rear hitches (55) and (60). ), The notch plate (71) having the concave notch (70) is fixed to the front surface of the lower end of the hitch base (69), and the support shaft (74) is fixed to the hitch base (69). The base end of the lock bolt (75) is connected to the quick hitch pin (66) with a pair of lock plates (76) fixed to the tip of the lock bolt (75) between the pair of lock plates (76). And the nut (77) at the tip of the lock bolt (75) is brought into contact with the front surface of the lock plate (76). The hitch stand (69) and the planting part (15) Can be easily improved, and the bearing length of the rolling fulcrum shaft (59) provided between the front and rear hitch (55) (60) can be easily secured, and the rolling fulcrum shaft (59) and the bearing allowance can be secured. Easy loading It can be increased, large planting platform and simplify the support strength improvement and support structure (15) can be easily performed. Further, a lock bolt (75) provided on the hitch base (69) is detachably fixed to the rear hitch (60), and mechanical vibration of the detachable hitch base (69) is caused by fixing the lock bolt (75). It can be easily prevented.
[Brief description of the drawings]
FIG. 1 is an overall side view of a rice transplanter.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of a link mechanism.
FIG. 4 is an explanatory view of the same plane.
FIG. 5 is a side view of the front part of the link mechanism.
FIG. 6 is a plan view of the same.
FIG. 7 is a side view of a rear portion of the link mechanism.
FIG. 8 is a partial side view of the same.
FIG. 9 is an explanatory front view of the rear part of the link mechanism.
FIG. 10 is a partial front view of the same.
FIG. 11 is a plan view of a top link.
FIG. 12 is a side view of the same.
FIG. 13 is an enlarged side view of the same.
[Explanation of symbols]
(1) traveling vehicle (15) planting part (25) top link (26) lower link (55) front hitch (59) rolling fulcrum shaft (60) rear hitch (63) rolling cylinder (66) quick hitch pin (67) Quick hitch hook (69) Hitch stand (75) Lock bolt (76) Lock plate (77) Nut

Claims (1)

トップリンク及びロワーリンクを介して走行車に植付部を昇降自在に装設させ、前記各リンクを連結させる前ヒッチを設け、前ヒッチにローリング支点軸を介して後ヒッチを連結させると共に、後ヒッチに着脱自在に連結させるヒッチ台を植付部に取付け、クイックヒッチピン及びクイックヒッチフックを介して後ヒッチに前ヒッチ台を着脱自在に係止させるように構成し、前後ヒッチ下端部を前ローリング支点軸によって連結させると共に、前後ヒッチの各上端部間をローリングシリンダにて連結してなる田植機において、凹形ノッチを有するノッチ板を前記ヒッチ台下端部前面に固定させ、前記ヒッチ台に支軸を介してロックボルト基端を連結させると共に、前記クイックヒッチピンに一対のロック板を固定させ、前記一対のロック板間に前記ロックボルト先端部を挿入させ、前記ロックボルト先端のナットを前記ロック板前面に当接させるように構成したことを特徴とする田植機。Top link and lower link vertically movably to So設planting unit to vehicle via the front SL provided hitch prior to connecting the links, together with the coupling the rear hitch through a rolling pivot axis in front hitch, Install the hitch mount for removably coupled to the rear hitch planting unit, and configured to locked freely engaged removably pre Symbol hitch stand to the rear hitch through the quick hitch pin and a quick hitch hook, the front and rear hitch lower end with linking the prior SL rolling pivot axis, in rice transplanters formed by connecting the respective upper ends of the front and rear hitch at a rolling cylinder, is fixed notch plate having a concave notch in front the hitch base lower portion, said hitch A base of the lock bolt is connected to the base via a support shaft, and a pair of lock plates are fixed to the quick hitch pin. Wherein by inserting the locking bolt tip during, rice transplanters, characterized in that the locking bolt tip nut and configured to abut against the locking plate front.
JP15029697A 1997-05-23 1997-05-23 Rice transplanter Expired - Fee Related JP3657394B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15029697A JP3657394B2 (en) 1997-05-23 1997-05-23 Rice transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15029697A JP3657394B2 (en) 1997-05-23 1997-05-23 Rice transplanter

Publications (2)

Publication Number Publication Date
JPH10323106A JPH10323106A (en) 1998-12-08
JP3657394B2 true JP3657394B2 (en) 2005-06-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP15029697A Expired - Fee Related JP3657394B2 (en) 1997-05-23 1997-05-23 Rice transplanter

Country Status (1)

Country Link
JP (1) JP3657394B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010207144A (en) * 2009-03-10 2010-09-24 Iseki & Co Ltd Agricultural machine
JP2013066479A (en) * 2012-12-11 2013-04-18 Iseki & Co Ltd Working machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6483011B2 (en) * 2015-12-17 2019-03-13 ヤンマー株式会社 Work vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010207144A (en) * 2009-03-10 2010-09-24 Iseki & Co Ltd Agricultural machine
JP2013066479A (en) * 2012-12-11 2013-04-18 Iseki & Co Ltd Working machine

Also Published As

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