JP3554874B2 - Rice transplanter fertilizer - Google Patents
Rice transplanter fertilizer Download PDFInfo
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- JP3554874B2 JP3554874B2 JP30073295A JP30073295A JP3554874B2 JP 3554874 B2 JP3554874 B2 JP 3554874B2 JP 30073295 A JP30073295 A JP 30073295A JP 30073295 A JP30073295 A JP 30073295A JP 3554874 B2 JP3554874 B2 JP 3554874B2
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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乗用田植機の施肥装置に関する。
【0002】
【発明が解決しようとする課題】
繰出ロールとして、回転する穴あき円板の穴に入った肥料を所定位置まで回転したとき排出する目皿式構造のものにあって、繰出ロールから肥料の排出を行う場合機体の左右方向に排出するものがある。しかし乍ら、本機側に施肥タンクを装備させこの後方の植付部にタンクからの肥料を送給する田植機構造のものにあっては、繰出ロールからの肥料が左右方向に排出される場合、植付部までの搬送が屈曲したものとなって搬送系が複雑化するばかりでなく肥料詰まりも発生し易い。
【0006】
【課題を解決するための手段】
したがって本発明は、肥料取入口を有する固定ロール上蓋と、肥料排出口を有する固定ロール下蓋とを、回転自在な繰出ロールの上下に摺接させると共に、繰出ロールの繰出口に入った肥料の入量を調節する仕切板を弾性体で形成し、該仕切板の作用面略中央に仕切線部を設け、仕切板の仕切線部前側を傾斜面に形成する田植機の施肥装置において、前記肥料取入口端部で繰出口上面の余分な肥料を取除く仕切板を備え、前記仕切板を繰出ケースに高さ調節自在に取付け、仕切線部を略中央に有する山形底面を仕切板に形成し、仕切線部を中心として繰出板の回転側に対する前側を長さの短い迎え傾斜面に、またこの反対の後側を傾斜角が略同じで長さの長い送り傾斜面に形成するもので、仕切板自体の撓みを少なくして調量を安定させ得ると共に、仕切線部とこの前側の迎え傾斜面とで肥料との接触を最大短くしこの接触時の衝撃を緩和させて肥料のコーティングが破壊することなどを防止し得るものである。
【0008】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図1は繰出部の断面平面説明図、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、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、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。
【0009】
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。
【0010】
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6条用の側条施肥機である。
【0011】
さらに、図4、図5にも示す如く、肥料を入れる肥料タンクである施肥ホッパ(37)と、肥料を定量供給する肥料繰出ケース(38)と、施肥部であるフロート(34)(35)の側条作溝器(39)にフレキシブル形搬送ホース(40)を介して肥料を排出させるターボブロワー型送風機(41)と、円筒形のエアタンク(42)とを、前記施肥機(36)に備えると共に、エアタンク(42)右側端に送風機(41)を取付け、6条分の6組の肥料繰出ケース(38)…をエアタンク(42)上側に配設させている。
【0012】
さらに、図6乃至図11に示す如く、前記車体フレーム(3)後端の左右支柱(43)上端間に横架する水平フレーム(44)両側に左右ベースフレーム(45)(45)を取付け、前後方向に略水平に横架させる前記ベースフレーム(45)を介して施肥機(36)を設けると共に、左右ベースフレーム(45)(45)にブラケット(46)(46)を介してエアタンク(42)をボルト止め固定させるもので、ベースフレーム(45)後端部と車体フレーム(3)間にサイドステー(47)を連結させ、ベースフレーム(45)前後側に前後昇降レール(48)(49)…を立設させ、前後一組左右二対の4本の該昇降レール(48)(48)(49)(49)を介して施肥機(36)を昇降自在に取付けると共に、左右一対の2本のガススプリング(50)(50)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)に施肥機(36)重量を支持させるもので、図12にも示す如く、前後昇降レール(48)(49)に対向させる軸受板(51)を設け、前記レール(48)(49)に転動自在に嵌込むベアリングローラ(52)…を軸受板(51)に回転自在に軸支させ、前後2本のレール(48)(49)を左右対称に2組設け、1本のレール(48)(49)に対して上下2個のローラ(52)(52)を取付け、左右一対の軸受板(51)(51)を4本のレール(48)(49)と8個のローラ(52)…によってベースフレーム(45)に昇降自在に支持させている。
【0013】
また、前記ガススプリング(50)の下端を前記車体フレーム(3)に連結させ、前記軸受板(51)にガススプリング(50)上端を連結させ、前記レール(48)(49)とガススプリング(50)を略平行に立設させると共に、施肥機(36)の前後幅方向の重心位置にガススプリング(50)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(50)が有するように構成している。
【0014】
さらに、図12乃至図15に示す如く、左右の軸受板(51)(51)を丸パイプ形の前フレーム(53)によって一体固定させ、施肥機(36)を持上げるときに作業者が握る取手(54)を前記前フレーム(53)に溶接固定させ、左右の前記軸受板(51)(51)に支軸(55)(55)を介して左右ロックレバー(56)(56)を回転自在に軸支させ、前側の左右昇降レール(48)(48)に左右ロックレバー(56)(56)を介して左右軸受板(51)(51)前部を係止させると共に、後側の左右昇降レール(49)(49)に左右ロックピン(57)(57)を摺動自在に取付け、図12に示す軸受板(51)の係合孔(58)にロックピン(57)を係脱自在に係入させ、後側の左右昇降レール(49)(49)に左右軸受板(51)(51)後部を左右ロックピン(57)(57)を介して係止させ、軸受板(51)の前部と後部を前後の昇降レール(48)(49)にロックレバー(56)とロックピン(57)により固定させる。また図15、図19に示す如く、前記昇降レール(48)に上下係合孔(58)(59)を形成させ、各係合孔(58)(59)にロックレバー(56)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、ロックレバー(56)を前記取手(54)の下側に延出させ、運転席(13)側に突設させる取手(54)を作業者が握り乍らロックレバー(56)を操作し、ロックレバー(56)を係合孔(58)(59)から離脱させることができるように構成している。
【0015】
また、前記前フレーム(53)にケース前ブラケット(60)を溶接固定させ、該ケース前ブラケット(60)に前記繰出ケース(38)前側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中央2条分の繰出ケース(38)(38)を左右の昇降レール(48)(49)間に配設させ、昇降レール(48)(49)の機外側に左右各2条分の繰出ケース(38)(38)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(38)…を左右に並設させている。
【0016】
さらに、図16乃至図18に示す如く、前記繰出ケース(38)の上面前側の取入口(61)に前記ホッパ(37)の下部出口(62)を嵌着させると共に、前記繰出ケース(38)前面下側に取出口(63)を形成し、着脱自在なキャップ(64)によって取出口(63)を閉塞している。前記キャップ(64)を取外して取出口(63)を開放し、ホッパ(37)内部の肥料を前側下方に流下させるもので、このときに施肥機(36)を昇降レール(48)(49)の上昇位置に支持させ、取出口(63)と下方のエアタンク(42)の間隔を拡大させ、肥料を入れる容器を前記取出口(63)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。
【0017】
また、前記繰出ケース(38)下面に閉塞レバー(65)を介してケース底部である底蓋(66)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(66)下面に出口(67)を形成するもので、エアタンク(42)に前端部を嵌着させる軟質合成樹脂製の接合パイプ(68)を備え、該パイプ(68)後端に硬質合成樹脂製のホースジョイント(69)前端を着脱自在に嵌着させると共に、前記ジョイント(69)後端に前記搬送ホース(40)を嵌着させ、前記送風機(41)の送風をエアタンク(42)から各パイプ(68)…及びホース(40)に吹出させ、底蓋(66)の出口(67)からジョイント(69)中間に落下する肥料を搬送ホース(40)に移動させるもので、T字形フランジを形成する前記ジョイント(69)中間に入口(70)を上向き開放に形成し、底蓋(66)の出口(67)に嵌合キャップ(71)を固定させ、該キャップ(71)を前記入口(70)の外壁に着脱自在に嵌着させ、出口(67)を入口(70)に接続させると共に、前記エアタンク(42)に取付板(72)を一体固定させ、取付板(72)に前記ジョイント(69)をボルト止め固定させている。
【0018】
また図21にも示す如く、取入口(73)及び吹出口(74)を有するロール上蓋である入口板(75)と、同一円周上に略四角形の複数の繰出口(76)…を有する繰出ロールである繰出板(77)と、排出口(78)を有するロール下蓋である出口板(79)を備え、略円形平板製の前記各板(75)(77)(79)を繰出ケース(38)と底蓋(66)の間に多層状に配設させると共に、繰出ケース(38)にロール駆動軸である繰出軸(80)を略垂直に回転自在に軸支させ、各板(75)(77)(79)の中央部に繰出軸(80)下端側を貫通させ、出口板(79)下面に下方側からバネ(81)を弾圧させ、各板(75)(77)(79)を下方に抜出し自在に繰出軸(80)に支持させ、かつ閉塞レバー(65)によって各板(75)(77)(79)を繰出ケース(38)と底蓋(66)間に弾圧させるもので、入口板(75)と出口板(79)を繰出ケース(38)に係止させ、各板(75)(79)に対して繰出軸(80)を遊転させると共に、繰出板(77)を繰出軸(80)に係合軸支させ、繰出軸(80)によって繰出板(77)を強制的に回転させ、取入口(73)から繰出口(76)に入った肥料を排出口(78)に移動させて出口(67)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(73)端部で繰出口(76)上面の余分な肥料を取除くゴム製仕切板(82)を備え、高さ調節する撮(83)を介して前記仕切板(82)を繰出ケース(38)に高さ調節自在に取付け、繰出板(77)上面に対する仕切板(82)下端の高さ調節を繰出ケース(38)外部から行い、繰出口(76)の肥料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(75)の吹出口(74)に対向させる圧風取入口(84)を繰出ケース(38)に形成し、前記エアタンク(42)の中空部と前記圧風取入口(84)を分流パイプ(85)によって連通させ、前記パイプ(85)及び取入口(84)を介して送風機(41)及びエアタンク(42)からの送風を吹出口(74)に供給し、排出口(78)位置に移動した繰出口(76)に吹出口(74)から送風し、該送風によって繰出口(76)の肥料を下方に強制的に落下させ、粒形の肥料またはこの粉が繰出口(76)内に残るのを防ぐように構成している。
【0021】
さらに、図7、図10、図15にも示す如く、前記エンジン(2)出力を植付部(15)に伝達させるPTO軸(86)をミッションケース(4)から後方に延出させると共に、前記左支柱(43)に軸受ケース(87)を溶接固定させ、軸受ケース(87)の入力軸(88)を前記PTO軸(86)中間にチェン(89)を介して連動連結させ、軸受ケース(87)の出力軸(90)後端部にクランク板(91)をボールロック構造により着脱自在に固定させる。また、前記軸受板(51)及びケース後ブラケット(92)を一体固定させる四角パイプ形後面フレーム(93)を備え、エアタンク(42)及び前フレーム(53)と略平行に後面フレーム(93)を横架させ、ケース後ブラケット(92)に前記繰出ケース(38)後側をボルト止め固定させる。
【0022】
また、前記左の軸受板(51)にブラケット(94)及び軸(95)を介して繰出量調節レバー(96)を軸支させると共に、左の軸受板(51)に支軸(97)を介して調節リンク(98)及び支点リンク(99)を設け、前記レバー(96)のネジ部(100)に調節リンク(98)を連結させ、支点リンク(99)に調節支点(101)を取付け、該支点(101)に駆動アーム(102)を軸支させる。そして、運転席(13)方向に突出させる前記レバー(96)の回転操作によってネジ部(100)を回転させることにより、前記各リンク(98)(99)が一体的に回転し、前記調節支点(101)位置を変更させるもので、運転席(13)の作業者によって前記レバー(102)の繰出量調節操作が行えるように構成している。
【0023】
また、前記後面フレーム(93)に軸受板(103)を介して繰出駆動軸(104)を回転自在に軸支させ、該駆動軸(104)に揺動アーム(105)を固定させ、前記駆動アーム(102)に長さ調節自在な伸縮ロッド(106)一端側を連結させ、かつ前記揺動アーム(105)に前記伸縮ロッド(106)の他端側を連結させると共に、前記クランク板(91)を駆動アーム(102)に入力ロッド(107)を介して連結させ、植付駆動用のPTO軸(86)から入力ロッド(107)及び駆動アーム(102)を介して繰出駆動軸(104)に駆動力を伝え、図示しない植付クラッチの入切によって植付部(15)と施肥機(36)を同時に作動させたり停止させる操作を行い、また前記出力軸(90)に対してクランク板(91)を取外して駆動部を切離して施肥機(36)の上昇部を持上げる操作を行うもので、前記レバー(96)操作により調節支点(101)を位置変更させ、伸縮ロッド(106)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。
【0024】
さらに、図9に示す如く、前記後面フレーム(93)に連れ回り防止一方向クラッチ(108)を介してクラッチ軸(109)を軸支させ、該クラッチ軸(109)に一方向クラッチ(110)を介して入力リンク(111)を設けると共に、前記繰出駆動軸(104)に揺動リンク(112)を固定させ、該リンク(112)を前記入力リンク(111)に連係ロッド(113)を介して連結させ、入力リンク(111)を揺動させてクラッチ軸(109)を一方向に間欠的に回転させるように構成している。
【0025】
また、前記繰出ケース(38)に条止めクラッチケース(114)を固定させると共に、前記繰出軸(80)上端側にベベルギヤ(115)(116)を介して入力軸(117)を常時連結させるもので、入力軸(117)を前記クラッチ軸(109)に継断自在に連結させる条止めクラッチ(図示省略)を前記クラッチケース(114)に内設させると共に、前記ケース(114)の条止めクラッチを継断操作するクラッチレバー(118)とクラッチアーム(119)を前記クラッチケース(114)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用ユニットクラッチレバー(120)に、後面フレーム(98)のアウタ受(121)により張設させる条止めワイヤ(122)を介して、前記クラッチアーム(119)を連結させる。そして、前記植付け条止めユニットクラッチレバー(120)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)に対応する前記ケース(114)の条止めクラッチ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ように構成している。
【0026】
さらに、図12乃至図14にも示す如く、中央2条分の肥料繰出ケース(38)(38)取付位置外側で前フレーム(53)と後面フレーム(93)に左右の軸受板(51)(51)を溶接固定させると共に、前フレーム(53)と後面フレーム(93)の両端部を左右のサイドフレーム(123)(123)によって一体固定させ、両側2条分の肥料繰出ケース(38)(38)を軸受板(51)とサイドフレーム(123)間の前フレーム(53)及び後面フレーム(93)に取付けるもので、四角枠形の各フレーム(53)(93)(123)を軸受板(51)によって左右方向に三等分に区切り、前後のフレーム(53)(93)間に6条分の肥料繰出ケース(38)を掛け渡し支持させる。
【0027】
図13、図16、図18にも示す如く、前記繰出ケース(38)と前フレーム(53)間に設けるブラケット(60)には横方向に長径の覗穴(124)を開設していて、繰出ケース(38)に底蓋(66)を組付ける際、苗載台(16)側に回り込むことなく正面側より容易に位相などの確認を行って、これら組付けの取扱い性を向上させるように構成している。
【0028】
また図16に示す如く、前記ホースジョイント(69)と搬送ホース(40)との接続にあっては、ホースジョイント(69)の出口内径部(69a)に搬送ホース(40)の入口外径部(40a)を、別途ジョイントなどを用いることなく直接的に挿入結合させて、軽量・コンパクトな構成とすると共に着脱操作の容易化を図ってメンテナンス性を向上させるように構成している。
【0029】
さらに、図18、図19に示す如く、前記接合パイプ(68)に接合させる空気取入側から空気吹出し側に向けて先細り形に形成する空気流入口である空気噴出口(125)と、前記入口(70)を備える円筒(126)によって形成する肥料流入口である肥料落下口(127)と、前記搬送ホース(40)に送出側を接合させる合流送出口(128)を、前記ホースジョイント(69)に形成するもので、前記噴出口(125)と送出口(128)を略同一直線上に配置させ、前記噴出口(125)と送出口(128)の接合部に肥料落下口(127)を接続させている。そして、前記円筒(126)の入口(70)側をエアタンク(42)に近づける方向に円筒(126)を傾斜させ、ホースジョイント(69)の噴出口(125)からの空気噴出方向に対して直角方向より後退角を有するように肥料落下口(127)を傾斜させ、つまり肥料落下口(127)を空気噴出口(125)に対し鋭角に傾斜させて形成し、前記噴出口(125)から噴出した空気が落下口(127)内に移動し、その空気が落下口(127)の入口(70)から肥料繰出ケース(38)内部に吹出すのを防いでいる。
【0030】
またさらに、前記空気噴出口(125)端部に一定長さの小径のストレート部(125a)を形成して噴出流速の一様化を図ると共に、このストレート部(125a)と肥料落下口(127)との交差壁部を鋭角のノーズ部(126a)に形成してこのストレート部(125a)から落下口(127)への空気吹上りを防止している。そして最も小径になるストレート部(125a)の端部(125b)を肥料落下口(127)の略中央下方に開口させ、空気噴出口(125)からの空気の噴流により、負圧になる合流送出口(128)方向に肥料落下口(127)の空気を吸引させるもので、また空気噴出口(125)の下流側の合流送出口(128)を末広がり形状に形成し、搬送ホース(40)接続部に向けて下降傾斜する斜面(129)を合流送出口(128)底面に形成し、空気噴出口(125)下流部の合流送出口(128)底部での肥料堆積を防いでいる。
【0031】
さらに、肥料繰出ケース(38)に連結させるホースジョイント(69)の入口(70)の開口外周に鈎形突部(130)を設け、該突部(130)を形成する円筒(126)開口縁に台形斜面(131)を設けると共に、前記底蓋(66)の出口(67)に嵌着させる可撓性ゴム製嵌合キャップ(71)の上端側内径に比べて下端側内径を大きく形成し、嵌合キャップ(71)の縦断面端面をハの字形とし、下端側を末広がりに形成する。また嵌合キャップ(71)の中間部内周に肉厚突条(132)を設けると共に、嵌合キャップ(71)の下端部内周に肉薄突条(133)を設け、前記ホースジョイント(69)の円筒(126)に嵌合キャップ(71)を上方側から被せたとき、これら突条(132)(133)が台形斜面(131)に弾圧密着し、出口(67)と入口(70)間の隙間が嵌合キャップ(71)によって密閉されるように構成している。
【0032】
ところで、前記繰出ケース底蓋(66)は逆円錐体の漏斗状に形成し、前記出口(67)中心を繰出軸(80)の軸芯の延長線真下に位置するように設けて、繰出軸(80)に対し一定寸法離れた位置の排出口(78)より吹出口(74)からの送風力などとともに一定量の繰出肥料が排出されるとき、繰出板(77)による回転慣性作用によってこの肥料を螺旋流として繰出軸(80)を中心に螺旋回転させながら出口(67)に落下させて、出口(67)に肥料詰りなどのないスムーズな排出を促進させるように構成している。
【0033】
つまり前記底蓋(66)を駆動軸(80)を中心とした逆等円錐体の漏斗形状に形成し、繰出肥料を螺旋流で落下させることによって、肥料の落下の流れをスムーズなものとして堆積も起こり難いものとし、前記ホースジョイント(69)に合流するときの入り力も大とし、ホースジョイント(69)からの空気の吹返しも低減させ、例え肥料が破損するような場合でも螺旋流となって落下する肥料で強制落下させ、さらには底蓋(66)の側壁部には全周に所定以上の傾斜角(α)を略均一に有して最小傾斜角部を無くし、肥料の堆積するのを有効に防止して、出口(67)からの肥料のスムーズな排出を促進させるように構成したものである。
【0034】
また、前記底蓋(66)の出口(67)の口径(a)を従来の口径(例えば25mm)より大(例えばa=28)に形成すると共に、ホースジョイント(69)の入口(70)の口径(b)をこの口径(a)より大(b>a)に形成して、これら出口(67)から入口(70)への肥料の受継ぎ落下を溜りのないスムーズなものとさせるように構成している。
【0035】
さらに、前記底蓋(66)の出口(67)とホースジョイントの入口(70)との合流部(134)に肥料詰り防止用の掃除部材(135)を設けるもので、線径の細いコイルバネ(136)によって掃除部材(135)を形成し、該バネ(136)の外径を前記出口(67)及び入口(70)の内径近くの寸法に設けると共に、前記繰出軸(80)の下端に係合保持するバネホルダー(137)に、捩りバネ(138)を介し前記コイルバネ(136)の上端を首振り可能に連結させて、繰出軸(80)を回転させての肥料繰出し時にコイルバネ(136)も一体に回動させて、前記出口(67)及び入口(70)に肥料粉等が付着するのをコイルバネ(136)によって防止するように構成している。
【0036】
また前記コイルバネ(136)は、コイル内周が空間のため肥料の落下の妨げとさせることなく、また首振り可能に支持させることによってバネ(136)に回動による負荷がかかり難く、屈曲したホースジョイント(69)入口の堆積物などを容易に除去可能とさせ、さらに、前記排出口(78)から肥料落下時に螺旋流を描く方向とバネ(136)の回動方向とを同一方向とさせて、バネ(136)を肥料の落下の妨げとさせることなく、肥料の詰りを防止し肥料のスムーズな排出を促進させるように構成したものである。
【0037】
また図20に示す如く、前記バス(81)のバネ座(139)を底蓋(66)の内周に突設する3箇所の取付ボス(140)にボルト(141)を解し取外し自在に固定させるもので、前記排出口(78)からの肥料の旋回落下時の流れを妨げないように左右対称より繰出板(77)の回転方向(C)側にボス(140)の取付位置を一定角度(θ)ずらして、肥料のスムーズな旋回落下を促進させるように構成している。
【0038】
図1、図21にも示す如く、前記入口板(75)の取入口(73)と、出口板(79)の排出口(78)の軸(80)を中心とした溝範囲を略同一角度(略130〜140°)に形成すると共に、これら取入口(73)及び排出口(78)を左右対称位置より繰出板(77)の回転方向(C)にそれぞれ一定角度(β1)及び(β2)振った位置に設けて、前記取入口(73)に取入れた肥料を下方の繰出口(76)に後方向に放出すると共に、前記繰出口(76)が排出口(78)位置まで回動するとき、排出口(78)より前方向に肥料の排出を行うように構成している。
【0039】
そして、後下り状に形成するホースジョイント(69)の落下口(127)によって、底蓋(66)内の前側で強力となる空気噴流による吸引力で、前記排出口(78)から前方向に排出される肥料をロスなく確実にジョイント(69)内の空気流に吸引合流して、前記作溝器(39)まで搬送ホース(40)を介し肥料を気流搬送するように構成したものである。
【0040】
一方、図22及び図23にも示す如く、前記ゴム製仕切板(82)は、作用側となる繰出板(77)との摺接部の全作用長さ(L)を従来構造より短く形成して、仕切線部(142a)を略中央に有する山形底面(142)に形成するもので、仕切線部(142a)を中心として繰出板(77)の回転側に対する前側を長さの短い迎え傾斜面(142b)に、またこの反対の後側を傾斜角が略同じで長さの長い送り傾斜面(142c)に形成して、仕切板(82)自体の撓みを少なくして調量を安定させると共に、仕切線部(142a)とこの前側の迎え傾斜面(142b)とで肥料との接触を最大短くしこの接触時の衝撃を緩和させて肥料のコーティングが破壊することなどを防止するように構成している。
【0044】
【発明の効果】
以上実施例から明らかなように本発明は、肥料取入口(73)を有する固定ロール上蓋(75)と、肥料排出口(78)を有する固定ロール下蓋(79)とを、回転自在な繰出ロール(77)の上下に摺接させると共に、繰出ロール(77)の繰出口(76)に入った肥料の入量を調節する仕切板(82)を弾性体で形成し、該仕切板(82)の作用面略中央に仕切線部(142a)を設け、仕切板(82)の仕切線部(142a)前側を傾斜面(142b)に形成する田植機の施肥装置において、前記肥料取入口(73)端部で繰出口(76)上面の余分な肥料を取除く仕切板(82)を備え、前記仕切板(82)を繰出ケース(38)に高さ調節自在に取付け、仕切線部(142a)を略中央に有する山形底面(142)を仕切板(82)に形成し、仕切線部(142a)を中心として繰出板(77)の回転側に対する前側を長さの短い迎え傾斜面(142b)に、またこの反対の後側を傾斜角が略同じで長さの長い送り傾斜面(142c)に形成するもので、仕切板(82)自体の撓みを少なくして調量を安定させることができると共に、仕切線部(142a)とこの前側の迎え傾斜面(142b)とで肥料との接触を最大短くしこの接触時の衝撃を緩和させて肥料のコーティングが破壊することなどを防止することができるものである。
【図面の簡単な説明】
【図1】繰出部の断面平面説明図である。
【図2】全体の側面図である。
【図3】同平面図である。
【図4】施肥機部の平面図である。
【図5】同背面図である。
【図6】同側面説明図である。
【図7】昇降レール部側面説明図である。
【図8】肥料繰出ケース部の側面説明図である。
【図9】肥料繰出ケース部の平面説明図である。
【図10】ベースフレーム部の背面説明図である。
【図11】肥料繰出ケース部の背面説明図である。
【図12】軸受板部の側面説明図である。
【図13】取手部の平面説明図である。
【図14】同背面説明図である。
【図15】同側面説明図である。
【図16】肥料繰出ケースの断面側面説明図である。
【図17】同断面背面説明図である。
【図18】底蓋部の断面側面説明図である。
【図19】底蓋部の分解説明図である。
【図20】底蓋部の平面説明図である。
【図21】繰出部の分解説明図である。
【図22】仕切板の側面説明図である。
【図23】仕切板の断面説明図である。
【符号の説明】
(73) 取入口
(75) 入口板(ロール上蓋)
(77) 繰出板(繰出ロール)
(78) 排出口
(79) 出口板(ロール下蓋)
(82) 仕切板
(142a)仕切線部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fertilizing device for a riding rice transplanter that continuously performs seedling planting operations, for example, including a seedling mounting table and planting claws.
[0002]
[Problems to be solved by the invention]
The feed roll has a perforated structure that discharges the fertilizer that has entered the hole of the rotating perforated disk when it is rotated to a predetermined position.When discharging the fertilizer from the feed roll, the fertilizer is discharged in the horizontal direction of the machine There is something to do. However, in the case of the rice transplanter structure in which a fertilizer application tank is provided on the machine side and the fertilizer from the tank is fed to the rear planting section, the fertilizer from the feeding roll is discharged in the left and right direction. In this case, the conveyance to the planting section is bent, which not only complicates the conveyance system but also easily causes clogging of the fertilizer.
[0006]
[Means for Solving the Problems]
Accordingly, the present invention provides a fixed roll upper lid having a fertilizer intake and a fixed roll lower lid having a fertilizer discharge port, which are slidably contacted above and below a rotatable feed roll.Along withForming a partition plate made of elastic material to adjust the amount of fertilizer entering the feeding outlet of the feeding rollAndA partition line is provided at approximately the center of the working surface of the partition plate.A fertilizer application device for a rice transplanter in which a partition line front side of a partition plate is formed on an inclined surface, comprising a partition plate for removing excess fertilizer on an upper surface of a feed outlet at an end of the fertilizer intake; The height is freely adjustable, and the bottom of the chevron with a partition line at the approximate center is formed on the partition plate. The opposite rear side is formed on a long feed slope with the same inclination angle and a long length, which can reduce the deflection of the partition plate itself and stabilize metering, and the partition line part and the front inclination The contact between the surface and the fertilizer can be made as short as possible, and the impact at the time of the contact can be reduced to prevent the fertilizer coating from being broken.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a cross-sectional plan view of a pay-out section, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same. In the drawing, (1) is a traveling vehicle on which an operator rides and an engine (2) And a front axle case (5) for supporting a paddy traveling front wheel (6) in front of a transmission case (4), and a rear portion of the gear transmission case (4). A rear axle case (7) is connected to the rear axle case (7), and the rear axle case (7) supports a paddy field traveling rear wheel (8). A spare seedling mount (10) is mounted on both sides of the hood (9) covering the engine (2) and the like, and the transmission case (4) is secured by a body cover (12) on which an operator rides through step (11). A driver's seat (13) is mounted above the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) and behind the hood (9).
[0009]
In the figure, (15) is a planting section provided with a seedling mounting table (16) for 6-row planting and a plurality of planting claws (17). A rotary case (21) for supporting the seedling mounting table (16) via a lower rail (18) and a guide rail (19) on a planting case (20) so as to be reciprocally slidable 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 disposed at symmetric positions about the rotation axis of the case (21). ) 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 travels via a link mechanism (27) including a top link (25) and a lower link (26). A support frame (24) is connected to the rear side of the vehicle (1), and a lifting cylinder (28) for raising and lowering the planting section (15) is connected to the lower link (26) via the link mechanism (27). At the same time as the front and rear wheels (6) and (8) are driven to move, the seedlings for one plant are taken out from the seedling mounting table (16) which is reciprocally slid left and right by the planting claws (17) and are continuously planted. Configure to work.
[0010]
Also, in the figure, (29) is a traveling speed change lever, (30) is a sub speed lever for planting elevating and working traveling speed change, (31) is a planting sensitivity adjustment lever, (32) is a main clutch pedal, (33) and (33). ) Is a left and right brake pedal, (34) is a two-floor leveling center float, (35) is a two-floor leveling side float, and (36) is a six-floor side fertilizer.
[0011]
Further, as shown in FIGS. 4 and 5, a fertilizer hopper (37) as a fertilizer tank for storing fertilizer, a fertilizer feeding case (38) for supplying a fixed amount of fertilizer, and floats (34) and (35) as fertilizers. A turbo blower-type blower (41) that discharges fertilizer through a flexible transfer hose (40) to a side striation groove device (39) and a cylindrical air tank (42) are connected to the fertilizer applicator (36). At the same time, a blower (41) is attached to the right end of the air tank (42), and six sets of six fertilizer feeding cases (38) are arranged above the air tank (42).
[0012]
Further, as shown in FIGS. 6 to 11, left and right base frames (45) and (45) are attached to both sides of a horizontal frame (44) extending between upper ends of left and right supports (43) at the rear end of the body frame (3). A fertilizer applicator (36) is provided via the base frame (45) which extends substantially horizontally in the front-rear direction, and an air tank (42) is provided on the left and right base frames (45) (45) via brackets (46) (46). ), And a side stay (47) is connected between the rear end of the base frame (45) and the body frame (3), and the front and rear elevating rails (48) (49) are provided on the front and rear sides of the base frame (45). ), And a fertilizer applicator (36) is attached via a pair of four elevating rails (48), (48), (49), and (49) so as to be able to move up and down. Two The fertilizer applicator (36) is attached to the rear axle case (7) arranged at the rear end of the vehicle body frame (3) so that the weight of the fertilizer applicator (36) is supported by the springs (50) and (50). As shown in FIG. 12, a bearing plate (51) is provided to face the front and rear elevating rails (48) (49), and bearing rollers (52) which are rotatably fitted on the rails (48) (49) are provided on the bearing plate. (51) is rotatably supported, and two sets of two front and rear rails (48) and (49) are provided symmetrically left and right, and two rollers (52) are provided for one rail (48) and (49). ) (52), and a pair of left and right bearing plates (51) (51) is supported on the base frame (45) by four rails (48) (49) and eight rollers (52) so as to be able to move up and down. ing.
[0013]
Further, the lower end of the gas spring (50) is connected to the vehicle body frame (3), the upper end of the gas spring (50) is connected to the bearing plate (51), and the rails (48) and (49) are connected to the gas spring ( 50), and a gas spring (50) is connected to the center of gravity of the fertilizer applicator (36) in the front-rear width direction, and the extension is substantially equal to or slightly smaller than the weight of the fertilizer (36). The gas spring (50) is configured to have a force.
[0014]
Further, as shown in FIGS. 12 to 15, the left and right bearing plates (51) and (51) are integrally fixed by a round pipe-shaped front frame (53), and the worker grips when lifting the fertilizer applicator (36). The handle (54) is fixed to the front frame (53) by welding, and the left and right lock levers (56) and (56) are rotated on the left and right bearing plates (51) and (51) via the support shafts (55) and (55). The left and right bearing plates (51) and (51) are locked by front left and right elevating rails (48) and (48) via left and right lock levers (56) and (56). Left and right lock pins (57) and (57) are slidably mounted on the left and right lifting rails (49) and (49), and the lock pins (57) are engaged with the engagement holes (58) of the bearing plate (51) shown in FIG. Removably engage the rear left and right elevating rails (49) (49) The rear portions of the right bearing plates (51) and (51) are locked via left and right lock pins (57) and (57), and the front and rear portions of the bearing plate (51) are locked to the front and rear elevating rails (48) and (49). It is fixed by the lever (56) and the lock pin (57). As shown in FIGS. 15 and 19, upper and lower engaging holes (58) and (59) are formed in the elevating rail (48), and a lock lever (56) is engaged with each of the engaging holes (58) and (59). The locker (56) is fixedly supported at the raised position or the lowered position, and the lock lever (56) is extended below the handle (54) and protruded from the driver's seat (13). The operator can operate the lock lever (56) while gripping (54) to release the lock lever (56) from the engagement holes (58) (59).
[0015]
A case front bracket (60) is fixed to the front frame (53) by welding, and the front side of the extension case (38) is fixed to the case front bracket (60) by bolts. The feed case (38) (38) for the row is disposed between the left and right elevating rails (48) (49), and the feed case (38) for the left and right is provided on the outside of the elevating rail (48) (49). ) And (38) are arranged respectively, and a three-unit feeding case (38)...
[0016]
Further, as shown in FIGS. 16 to 18, the lower outlet (62) of the hopper (37) is fitted into the inlet (61) on the upper front side of the feeding case (38), and the feeding case (38). An outlet (63) is formed on the lower front side, and the outlet (63) is closed by a removable cap (64). The cap (64) is removed, the opening (63) is opened, and the fertilizer inside the hopper (37) is caused to flow downward and forward. At this time, the fertilizer (36) is moved up and down the rails (48) (49). At the raised position, the distance between the outlet (63) and the lower air tank (42) is enlarged, and a container for storing fertilizer can be easily inserted below the outlet (63), and the residual fertilizer is taken out. Is configured to be easily performed.
[0017]
A bottom cover (66), which is the bottom of the case, is detachably fixed to the lower surface of the feeding case (38) via a closing lever (65), and an outlet (6) is formed on the lower surface of the hard synthetic resin bottom cover (66). 67), which is provided with a joining pipe (68) made of a soft synthetic resin for fitting a front end to the air tank (42), and a hose joint (69) made of a hard synthetic resin at the rear end of the pipe (68). The front end is detachably fitted, the transfer hose (40) is fitted to the rear end of the joint (69), and the blower (41) blows air from the air tank (42) to each pipe (68). The fertilizer which blows out from the outlet (67) of the bottom cover (66) and falls into the middle of the joint (69) from the outlet (67) is moved to the transfer hose (40). 9) In the middle, the inlet (70) is formed to be open upward, the fitting cap (71) is fixed to the outlet (67) of the bottom lid (66), and the cap (71) is attached to the outer wall of the inlet (70). The outlet (67) is connected to the inlet (70), the mounting plate (72) is integrally fixed to the air tank (42), and the joint (69) is bolted to the mounting plate (72). Stopped and fixed.
[0018]
As shown in FIG. 21, an inlet plate (75), which is a roll lid having an inlet (73) and an outlet (74), and a plurality of substantially square outlets (76) on the same circumference. It comprises a feeding plate (77) which is a feeding roll and an outlet plate (79) which is a roll lower lid having a discharge port (78), and feeds the plates (75), (77) and (79) made of a substantially circular flat plate. A multi-layer arrangement is provided between the case (38) and the bottom lid (66), and a feeding shaft (80), which is a roll drive shaft, is rotatably supported on the feeding case (38) substantially vertically rotatably. (75) The lower end of the feed shaft (80) is passed through the center of the (79) (79), and the spring (81) is resiliently pressed from below on the lower surface of the outlet plate (79), and each plate (75) (77) (79) is supported on the feeding shaft (80) so that it can be pulled out downward, and the closing lever (65) The plates (75), (77) and (79) are pressed between the feeding case (38) and the bottom cover (66), and the inlet plate (75) and the outlet plate (79) are locked to the feeding case (38). The feed shaft (80) is idled with respect to each plate (75) (79), and the feed plate (77) is engaged with the feed shaft (80) so that the feed plate (77) is engaged with the feed shaft (80). 77) is forcibly rotated so that the fertilizer that has entered the feeding port (76) from the intake port (73) is moved to the discharge port (78) and drops in the direction of the outlet port (67).
[0019]
In addition, a rubber partition plate (82) for removing excess fertilizer on the upper surface of the outlet (76) at the end of the inlet (73) is provided. ) Is attached to the feeding case (38) so as to be adjustable in height, the height of the lower end of the partition plate (82) with respect to the upper surface of the feeding plate (77) is adjusted from the outside of the feeding case (38), and the fertilizer is sent out from the feeding outlet (76). It is configured to adjust the amount.
[0020]
Further, a compressed air inlet (84) facing the air outlet (74) of the inlet plate (75) is formed in the feeding case (38), and the hollow portion of the air tank (42) and the compressed air inlet (84) are formed. ) Are communicated by a branch pipe (85), and the air from the blower (41) and the air tank (42) is supplied to the blowout port (74) through the pipe (85) and the intake port (84), and the discharge port ( 78) Air is blown from the air outlet (74) to the outlet (76) moved to the position, and the air blows to force the fertilizer at the outlet (76) to fall downward, whereby granular fertilizer or this powder is discharged. (76).
[0021]
Further, as shown in FIGS. 7, 10, and 15, a PTO shaft (86) for transmitting the output of the engine (2) to the planting portion (15) extends rearward from the transmission case (4). A bearing case (87) is welded and fixed to the left support (43), and an input shaft (88) of the bearing case (87) is interlocked to a center of the PTO shaft (86) via a chain (89). A crank plate (91) is detachably fixed to the rear end of the output shaft (90) of (87) by a ball lock structure. Further, a square pipe-shaped rear frame (93) for integrally fixing the bearing plate (51) and the case rear bracket (92) is provided, and the rear frame (93) is substantially parallel to the air tank (42) and the front frame (53). Then, the rear side of the feeding case (38) is fixed to the rear bracket (92) by bolts.
[0022]
Further, a feed amount adjusting lever (96) is supported on the left bearing plate (51) via a bracket (94) and a shaft (95), and a support shaft (97) is mounted on the left bearing plate (51). An adjusting link (98) and a fulcrum link (99) are provided via the lever, and the adjusting link (98) is connected to the screw portion (100) of the lever (96), and the adjusting fulcrum (101) is attached to the fulcrum link (99). The drive arm (102) is pivotally supported on the fulcrum (101). By rotating the screw portion (100) by rotating the lever (96) projecting toward the driver's seat (13), the links (98) and (99) rotate integrally, and the adjustment fulcrum is rotated. (101) The position of the lever (102) is changed so that the operator of the driver's seat (13) can adjust the extension of the lever (102).
[0023]
Further, a feeding drive shaft (104) is rotatably supported on the rear frame (93) via a bearing plate (103), and a swing arm (105) is fixed to the drive shaft (104). An arm (102) is connected to one end of a telescopic rod (106) whose length is adjustable, and the swing arm (105) is connected to the other end of the telescopic rod (106). ) Is connected to the drive arm (102) via the input rod (107), and the drive shaft (104) is extended from the PTO shaft (86) for planting drive via the input rod (107) and the drive arm (102). To drive the planting section (15) and the fertilizer applicator (36) at the same time by turning on and off a planting clutch (not shown), and a crank plate with respect to the output shaft (90). (9 ) Is removed to separate the drive unit and raise the raising part of the fertilizer applicator (36). The lever (96) is operated to change the position of the adjustment fulcrum (101), and the reciprocation of the telescopic rod (106) is performed. The stroke is changed steplessly so that the fertilizer delivery amount is steplessly adjusted.
[0024]
Further, as shown in FIG. 9, a clutch shaft (109) is supported by the rear frame (93) via a one-way clutch (108) for preventing rotation, and a one-way clutch (110) is attached to the clutch shaft (109). An input link (111) is provided through the link, and a swing link (112) is fixed to the feed drive shaft (104), and the link (112) is connected to the input link (111) via a link rod (113). The input link (111) is swung to rotate the clutch shaft (109) intermittently in one direction.
[0025]
In addition, a locking clutch case (114) is fixed to the feeding case (38), and an input shaft (117) is always connected to an upper end side of the feeding shaft (80) via bevel gears (115) and (116). Then, a stop clutch (not shown) for connecting and disconnecting the input shaft (117) to the clutch shaft (109) is provided inside the clutch case (114), and the stop clutch of the case (114) is provided. The clutch lever (118) and the clutch arm (119) for disconnecting the clutch are distributed and arranged before and after the clutch case (114) and provided on the upper rear surface of the seedling table (16) of the planting section (15). Via a stapling wire (122) which is stretched to the planting streak unit clutch lever (120) by an outer receiver (121) of the rear frame (98). Wherein linking the clutch arm (119). Then, when any of the planting claws (17) for the six-row planting is stopped by operating the planting streak stopping unit clutch lever (120), the case corresponding to the stopped planting claw (17) is stopped. The fertilizer application operation is stopped by disengaging the line stop clutch of (114), and the fertilizer is applied only to the line where the seedlings are planted by the planting claws (17).
[0026]
Further, as shown in FIGS. 12 to 14, the left and right bearing plates (51) (51) and (22) are attached to the front frame (53) and the rear frame (93) outside the mounting position of the fertilizer feeding case (38) (38) for the center two rows. 51), and both ends of the front frame (53) and the rear frame (93) are integrally fixed by left and right side frames (123) and (123), and the fertilizer feeding case (38) (38) ( 38) is attached to the front frame (53) and the rear frame (93) between the bearing plate (51) and the side frame (123). Each of the rectangular frames (53), (93) and (123) is attached to the bearing plate. By (51), it is divided into three equal parts in the left-right direction, and a six-row fertilizer feeding case (38) is supported between the front and rear frames (53) and (93).
[0027]
As shown in FIGS. 13, 16 and 18, a bracket (60) provided between the feeding case (38) and the front frame (53) is provided with a laterally long viewing hole (124). When assembling the bottom cover (66) to the feeding case (38), it is possible to easily check the phase and the like from the front side without going around the seedling mounting table (16) side, and to improve the handling of these assembling. It is composed.
[0028]
As shown in FIG. 16, when connecting the hose joint (69) and the transfer hose (40), the outer diameter of the inlet (69a) of the hose joint (69) is connected to the outer diameter of the inlet of the transfer hose (40). The (40a) is directly inserted and coupled without using a separate joint or the like, so as to have a lightweight and compact configuration, and to facilitate the attaching and detaching operation to improve the maintainability.
[0029]
Further, as shown in FIGS. 18 and 19, an air outlet (125) which is an air inlet formed to taper from an air intake side to an air blow side to be joined to the joining pipe (68); A fertilizer inflow port (127), which is a fertilizer inflow port formed by a cylinder (126) having an inlet (70), and a confluence outlet (128) for joining a delivery side to the transfer hose (40) are connected to the hose joint ( 69), the spout (125) and the delivery port (128) are arranged on substantially the same straight line, and the fertilizer dropping port (127) is formed at the junction of the spout (125) and the delivery port (128). ) Is connected. Then, the cylinder (126) is inclined so that the inlet (70) side of the cylinder (126) approaches the air tank (42), and the cylinder (126) is perpendicular to the air ejection direction from the ejection port (125) of the hose joint (69). The fertilizer drop port (127) is inclined so as to have a receding angle from the direction, that is, the fertilizer drop port (127) is formed so as to be inclined at an acute angle with respect to the air jet port (125), and is ejected from the jet port (125). The dropped air moves into the drop port (127), and prevents the air from blowing out from the inlet (70) of the drop port (127) into the fertilizer feeding case (38).
[0030]
Further, a small-diameter straight portion (125a) having a fixed length is formed at the end of the air jet port (125) to make the jet flow velocity uniform, and the straight portion (125a) and the fertilizer drop port (127) are formed. ) Is formed in a sharp nose portion (126a) to prevent air from rising from the straight portion (125a) to the falling port (127). Then, the end (125b) of the straight portion (125a) having the smallest diameter is opened substantially below the center of the fertilizer falling port (127), and the jet flow of the air from the air jet port (125) causes the confluence to be a negative pressure. The air from the fertilizer falling port (127) is sucked in the direction of the outlet (128), and the merging outlet (128) downstream of the air jet (125) is formed in a divergent shape and connected to the transfer hose (40). A slope (129) inclined downward toward the portion is formed on the bottom of the confluence outlet (128) to prevent accumulation of fertilizer at the bottom of the confluence outlet (128) downstream of the air outlet (125).
[0031]
Further, a hook-shaped projection (130) is provided around the opening of the inlet (70) of the hose joint (69) to be connected to the fertilizer feeding case (38), and an opening edge of the cylinder (126) forming the projection (130). A trapezoidal slope (131) is provided at the lower end, and a lower end inner diameter is formed to be larger than an upper end inner diameter of the flexible rubber fitting cap (71) fitted to the outlet (67) of the bottom lid (66). The longitudinal end face of the fitting cap (71) is formed in a C-shape, and the lower end side is formed to be divergent. A thick ridge (132) is provided on the inner periphery of the middle part of the fitting cap (71), and a thin ridge (133) is provided on the inner periphery of the lower end of the fitting cap (71). When the fitting cap (71) is put on the cylinder (126) from above, these ridges (132) and (133) elastically adhere to the trapezoidal slope (131), and the gap between the outlet (67) and the inlet (70). The gap is sealed by the fitting cap (71).
[0032]
Incidentally, the feeding case bottom cover (66) is formed in a funnel shape of an inverted cone, and the center of the outlet (67) is provided so as to be located directly below the extension of the axis of the feeding shaft (80). When a certain amount of fertilizer is discharged from the discharge port (78) at a position separated by a certain distance from the discharge port (80) together with the air flow from the outlet (74) and the like, the rotating inertia action of the discharge plate (77) causes this to be stopped. The fertilizer is dropped into the outlet (67) while being spirally rotated about the pay-out shaft (80) as a spiral flow, thereby facilitating smooth discharge without clogging the fertilizer at the outlet (67).
[0033]
In other words, the bottom cover (66) is formed in a funnel shape of an inverted conical shape centered on the drive shaft (80), and the fertilizer is dropped by a spiral flow, so that the flow of the drop of the fertilizer is made smooth. And the input force at the time of joining the hose joint (69) is increased, the blowback of air from the hose joint (69) is reduced, and a spiral flow is formed even when the fertilizer is damaged. The fertilizer is forced to fall by the falling fertilizer, and furthermore, the side wall portion of the bottom lid (66) has a uniform or more inclined angle (α) substantially uniformly over the entire circumference to eliminate the minimum inclined angle portion and to deposit the fertilizer. Is effectively prevented, and smooth discharge of fertilizer from the outlet (67) is promoted.
[0034]
Also, the diameter (a) of the outlet (67) of the bottom cover (66) is formed larger (for example, a = 28) than the conventional diameter (for example, 25 mm), and the inlet (70) of the hose joint (69) is formed. The diameter (b) is formed larger than the diameter (a) (b> a) so that the fertilizer can be smoothly transferred from the outlet (67) to the inlet (70) without accumulation. Make up.
[0035]
Further, a cleaning member (135) for preventing clogging of fertilizer is provided at a junction (134) between the outlet (67) of the bottom cover (66) and the inlet (70) of the hose joint, and the coil spring ( 136), a cleaning member (135) is formed, the outer diameter of the spring (136) is set to a size near the inner diameter of the outlet (67) and the inlet (70), and the cleaning member (135) is connected to the lower end of the feed shaft (80). The upper end of the coil spring (136) is swingably connected to a spring holder (137) to be held via a torsion spring (138), and the coil spring (136) is used when the feed shaft (80) is rotated to feed the fertilizer. The coil spring (136) prevents the fertilizer powder and the like from adhering to the outlet (67) and the inlet (70).
[0036]
In addition, the coil spring (136) has a coil inner space, so that it does not hinder the fall of fertilizer because it is a space, and by being swingably supported, the spring (136) is less likely to receive a load due to rotation, and is a bent hose. The sediment and the like at the inlet of the joint (69) can be easily removed, and the direction in which the spiral flow is drawn when the fertilizer falls from the outlet (78) and the rotation direction of the spring (136) are made the same. , Without preventing the spring (136) from dropping the fertilizer, thereby preventing clogging of the fertilizer and promoting smooth discharge of the fertilizer.
[0037]
Further, as shown in FIG. 20, the bolts (141) are detached from three mounting bosses (140) protruding from the inner periphery of the bottom cover (66) so that the spring seat (139) of the bus (81) is detachable. The mounting position of the boss (140) is fixed to the rotation direction (C) side of the feeding plate (77) from the left and right symmetry so as not to hinder the flow of the fertilizer from the discharge port (78) when turning and falling. It is configured to shift the angle (θ) to promote smooth turning of the fertilizer.
[0038]
As shown in FIGS. 1 and 21, the groove area around the axis (80) of the inlet (73) of the inlet plate (75) and the outlet (78) of the outlet plate (79) has substantially the same angle. (Approximately 130 ° to 140 °), and the inlet (73) and the outlet (78) are fixed at angles (β1) and (β2) in the rotational direction (C) of the feeding plate (77) from the symmetrical position. The fertilizer taken in the inlet (73) is discharged backward to the lower outlet (76), and the outlet (76) is rotated to the position of the outlet (78). In this case, the fertilizer is discharged forward from the discharge port (78).
[0039]
Then, through a drop port (127) of a hose joint (69) formed in a downward descending shape, the suction force by an air jet which becomes strong on the front side in the bottom lid (66) moves forward from the discharge port (78). The discharged fertilizer is surely sucked and merged into the air flow in the joint (69) without loss, and the fertilizer is air-flow-conveyed to the groove generator (39) via the conveyance hose (40). .
[0040]
On the other hand, as shown in FIGS. 22 and 23, the rubber partition plate (82) is formed such that the entire working length (L) of the sliding contact portion with the feeding plate (77) on the working side is shorter than that of the conventional structure. The partition line (142a) is formed on the chevron bottom (142) having a substantially central portion, and the front side of the payout plate (77) with respect to the rotation side of the partition line (142a) is shorter in length than the partition line (142a). An inclined surface (142b) and a rear side opposite to the inclined surface (142b) are formed as a long feed inclined surface (142c) having substantially the same inclination angle to reduce the deflection of the partition plate (82) itself to adjust the amount. In addition to the stabilization, the partition line (142a) and the front inclined slope (142b) minimize the contact with the fertilizer, reduce the impact at the time of contact, and prevent the fertilizer coating from being broken. It is configured as follows.
[0044]
【The invention's effect】
As is clear from the above embodiments, the present invention provides a fixed roll upper lid (75) having a fertilizer intake (73) and a fixed roll lower lid (79) having a fertilizer discharge port (78) by rotatably feeding out. Slide the roll (77) up and downAlong withA partition plate (82) for adjusting the amount of fertilizer that has entered the feeding outlet (76) of the feeding roll (77) is formed of an elastic body.AndA partition line (142a) is provided substantially at the center of the working surface of the partition (82).In a fertilizer device of a rice transplanter in which a front side of a partition line (142a) of a partition plate (82) is formed on an inclined surface (142b), an excess of an upper surface of a feeding outlet (76) at an end of the fertilizer intake (73). A partition plate (82) for removing fertilizer is provided. The partition plate (82) is attached to the feeding case (38) so as to be adjustable in height, and a bottom of the chevron (142) having a partition line (142a) substantially at the center. A plate is formed on the plate (82), the front side of the rotation side of the payout plate (77) around the partition line portion (142a) is formed on the short inclined slope (142b), and the opposite rear side is formed with a tilt angle. It is formed on the feeding inclined surface (142c) having a substantially same length and a long length, so that the deflection of the partition plate (82) itself can be reduced to stabilize the metering, and the partitioning line portion (142a) and the front side thereof can be formed. Contact with fertilizer on the slope (142b) The short coated fertilizers by alleviating the impact at the time of this contact is broken and is capable of preventing such.
[Brief description of the drawings]
FIG. 1 is an explanatory cross-sectional plan view of a feeding portion.
FIG. 2 is an overall side view.
FIG. 3 is a plan view of the same.
FIG. 4 is a plan view of the fertilizer application unit.
FIG. 5 is a rear view of the same.
FIG. 6 is an explanatory side view of the same.
FIG. 7 is an explanatory side view of a lifting rail.
FIG. 8 is an explanatory side view of the fertilizer feeding case portion.
FIG. 9 is an explanatory plan view of a fertilizer feeding case portion.
FIG. 10 is an explanatory rear view of the base frame unit.
FIG. 11 is an explanatory rear view of the fertilizer feeding case portion.
FIG. 12 is an explanatory side view of a bearing plate portion.
FIG. 13 is an explanatory plan view of a handle.
FIG. 14 is an explanatory rear view of the same.
FIG. 15 is an explanatory side view of the same.
FIG. 16 is an explanatory cross-sectional side view of the fertilizer feeding case.
FIG. 17 is a sectional rear view of the same.
FIG. 18 is an explanatory cross-sectional side view of the bottom cover.
FIG. 19 is an exploded explanatory view of the bottom cover.
FIG. 20 is an explanatory plan view of a bottom cover.
FIG. 21 is an exploded explanatory view of a feeding section.
FIG. 22 is an explanatory side view of a partition plate.
FIG. 23 is an explanatory sectional view of a partition plate.
[Explanation of symbols]
(73) Intake
(75) Inlet plate (roll upper lid)
(77) Feeding plate (feeding roll)
(78) Discharge port
(79) Exit plate (roll lower lid)
(82) Divider
(142a) Partition line part
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30073295A JP3554874B2 (en) | 1995-10-24 | 1995-10-24 | Rice transplanter fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30073295A JP3554874B2 (en) | 1995-10-24 | 1995-10-24 | Rice transplanter fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09107757A JPH09107757A (en) | 1997-04-28 |
| JP3554874B2 true JP3554874B2 (en) | 2004-08-18 |
Family
ID=17888442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30073295A Expired - Fee Related JP3554874B2 (en) | 1995-10-24 | 1995-10-24 | Rice transplanter fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3554874B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670657B (en) * | 2020-06-27 | 2024-10-18 | 中国热带农业科学院农业机械研究所 | Pineapple transplanting fertilizer distributor |
| CN115500126A (en) * | 2022-09-06 | 2022-12-23 | 华中农业大学 | A side-depth fertilizer applicator for rice with wind blowing |
-
1995
- 1995-10-24 JP JP30073295A patent/JP3554874B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09107757A (en) | 1997-04-28 |
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