JP3612606B2 - Rice transplanter - Google Patents

Rice transplanter Download PDF

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Publication number
JP3612606B2
JP3612606B2 JP30073095A JP30073095A JP3612606B2 JP 3612606 B2 JP3612606 B2 JP 3612606B2 JP 30073095 A JP30073095 A JP 30073095A JP 30073095 A JP30073095 A JP 30073095A JP 3612606 B2 JP3612606 B2 JP 3612606B2
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Japan
Prior art keywords
fertilizer
feeding
case
outlet
hose
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JP30073095A
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Japanese (ja)
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JPH09107755A (en
Inventor
田 裕 一 竹
井 邦 夫 土
藤 祐 一 加
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Yanma Agricultural Equipment Co Ltd
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Yanma Agricultural Equipment Co Ltd
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Priority to JP30073095A priority Critical patent/JP3612606B2/en
Priority to TW085111029A priority patent/TW344643B/en
Priority to CN 01108965 priority patent/CN1221160C/en
Priority to CN96113092A priority patent/CN1073337C/en
Priority to CN 01108966 priority patent/CN1241465C/en
Priority to KR1019960046052A priority patent/KR100441776B1/en
Publication of JPH09107755A publication Critical patent/JPH09107755A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/003Transplanting machines for aquatic plants; for planting underwater, e.g. rice
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/02Transplanting machines for seedlings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C15/00Fertiliser distributors
    • A01C15/04Fertiliser distributors using blowers

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizing (AREA)
  • Transplanting Machines (AREA)

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及び側条施肥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、エアタンクからの肥料搬送風の流れるホースジョイントの肥料入口と、繰出ケースの出口との合流部は、繰出ロールの駆動軸芯より偏心した位置にあって、繰出ロールからの繰出肥料を略直線的に合流部に落下させていた。しかし乍らこのような風の空気流で肥料の搬送を行う構造の場合、繰出ケースの出口側の肥料が風の吹上げによって、出口付近に付着し破損するなどして、肥料詰りが発生し易いという問題がある。
【0006】
【課題を解決するための手段】
請求項1に係る発明は、肥料を送出する肥料繰出ケースと、植付部に肥料を送給する搬送ホースと、前記搬送ホースに肥料搬送風を供給するエアタンクとを、ホースジョイントにて連結し、前記肥料繰出ケースに繰出ロールを備え、該繰出ロールをロール駆動軸にて駆動するように構成してなる田植機において、前記エアタンク及びホースジョイントに対して前記肥料繰出ケースを昇降可能に配置し、前記肥料繰出ケースの出口と、ホースジョイントの肥料入口との隙間を塞ぐ嵌合キャップを備えると共に、前記肥料入口に連通する肥料落下口を前記ホースジョイントに形成し、前記肥料落下口に肥料詰り防止用の掃除部材を配置し、前記掃除部材を前記ロール駆動軸に連結した。したがって、例えば粉の多い肥料、或いは高湿度条件下など肥料詰りが発生し易い作業条件でも、前記合流部における肥料粉等などの付着を掃除部材にて確実に防止し、肥料詰り等を低減するものである。
【0007】
請求項2に係る発明は、前記掃除部材を線径の細いコイルバネにて形成し、前記ロール駆動軸に前記掃除部材を首振り可能に連結したから、前記肥料落下口における肥料詰りを良好に防止できると共に、コイルバネ内側の空間にて肥料がスムーズに排出され、前記掃除部材が肥料排出の妨げとなることも解消できて、前記ホースジョイントにて肥料と搬送風とがスムーズに合流するものである。
【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は繰出ケースの合流部の断面説明図、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、取入口(73)及び吹出口(74)を有する入口板(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1、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。
【0041】
【発明の効果】
上記から明らかなように請求項1に係る発明は、肥料を送出する肥料繰出ケース(38)と、植付部(15)に肥料を送給する搬送ホース(40)と、前記搬送ホース(40)に肥料搬送風を供給するエアタンク(42)とを、ホースジョイント(69)にて連結し、前記肥料繰出ケース(38)に繰出ロール(77)を備え、該繰出ロール(77)をロール駆動軸(80)にて駆動するように構成してなる田植機において、前記エアタンク(42)及びホースジョイント(69)に対して前記肥料繰出ケース(38)を昇降可能に配置し、前記肥料繰出ケース(38)の出口(67)と、ホースジョイント(69)の肥料入口(70)との隙間を塞ぐ嵌合キャップ(71)を備えると共に、前記肥料入口(70)に連通する肥料落下口(127)を前記ホースジョイント(69)に形成し、前記肥料落下口(127)に肥料詰り防止用の掃除部材(135)を配置し、前記掃除部材(135)を前記ロール駆動軸(80)に連結した。したがって、例えば粉の多い肥料、或いは高湿度条件下など肥料詰りが発生し易い作業条件でも、前記合流部(134)における肥料粉等などの付着を掃除部材(135)にて確実に防止でき、肥料詰り等を低減できるものである。
【0042】
請求項2に係る発明は、前記掃除部材(135)を線径の細いコイルバネ(136)にて形成し、前記ロール駆動軸(80)に前記掃除部材(135)を首振り可能に連結したから、前記肥料落下口(127)における肥料詰りを良好に防止できると共に、コイルバネ(136)内側の空間にて肥料がスムーズに排出され、前記掃除部材(135)が肥料排出の妨げとなることも解消できて、前記ホースジョイント(69)にて肥料が搬送風にスムーズに合流できるものである。
【図面の簡単な説明】
【図1】繰出ケースの合流部の断面説明図である。
【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】同断面平面説明図である。
【図19】底蓋とホースジョイントとの分解説明図である。
【図20】底蓋の平面説明図である。
【符号の説明】
(15) 植付部
(38) 肥料繰出ケース
(40) 搬送ホース
(42) エアタンク
(66) 底蓋(底部)
(67) 出口
(69) ホースジョイント
(70) 入口
(77) 繰出板(繰出ロール)
(134) 合流部
(135) 掃除部材
(136) コイルバネ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice transplanter that includes, for example, a seedling stage and a planting claw and performs seedling planting work and lateral strip fertilization work continuously.
[0002]
[Problems to be solved by the invention]
Conventionally, the joining part of the fertilizer inlet of the hose joint through which the fertilizer conveying wind from the air tank flows and the outlet of the feeding case are located eccentrically from the drive shaft center of the feeding roll, and the feeding fertilizer from the feeding roll is substantially straight. It was dropped to the confluence part. However, in the case of a structure in which fertilizer is transported in such a wind air flow, the fertilizer on the outlet side of the feeding case adheres to the outlet and breaks due to the blowing of wind, resulting in fertilizer clogging. There is a problem that it is easy.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 includes a hose joint that connects a fertilizer feed case for sending fertilizer, a transport hose for feeding fertilizer to the planting part, and an air tank for supplying fertilizer transport wind to the transport hose. The fertilizer feeding case is provided with a feeding roll, and the fertilizer feeding case is arranged to be movable up and down with respect to the air tank and the hose joint in a rice transplanter configured to drive the feeding roll with a roll drive shaft. The fertilizer feed case has a fitting cap that closes a gap between the fertilizer inlet and the fertilizer inlet of the hose joint, and a fertilizer dropping port communicating with the fertilizer inlet is formed in the hose joint, and the fertilizer dropping port is clogged with fertilizer A cleaning member for prevention was disposed, and the cleaning member was connected to the roll drive shaft . Therefore, for example, even in working conditions where fertilizer clogging is likely to occur, such as a fertilizer with a lot of powder or under high humidity conditions, adhesion of fertilizer powder etc. at the junction is reliably prevented by the cleaning member, and fertilizer clogging is reduced. Is.
[0007]
In the invention according to claim 2, since the cleaning member is formed by a coil spring having a thin wire diameter, and the cleaning member is connected to the roll drive shaft so as to be able to swing, the fertilizer clogging at the fertilizer dropping port is satisfactorily prevented. it is possible, fertilizer is discharged smoothly at a coil spring inside the space, the cleaning member can also be eliminated to hinder fertilizer discharge, in which the fertilizer and the carrier air by the hose joint merges smoothly is there.
[0008]
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 cross-sectional explanatory view of a joining portion of a feeding 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, 2) is mounted above the front of the vehicle body frame (3), the front wheel (6) for paddy field traveling is supported via the front axle case (5) in front of the transmission case (4), and the gear transmission case (4) A rear axle case (7) is connected to the rear portion, and the rear axle case (7) supports the paddy field traveling rear wheel (8). The spare seedling stage (10) is attached to both sides of the bonnet (9) covering the engine (2) and the like, and the mission case (4) is provided by a vehicle body cover (12) on which an operator boardes through the step (11). Etc., 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).
[0009]
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 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 an elevating cylinder (28) for raising and lowering the planting part (15) via the link mechanism (27) is connected to the lower link (26), At the same time as the front and rear wheels (6) and (8) are driven to move, the seedlings are taken out from the seedling mount (16) that slides back and forth to the left and right with the planting claws (17), and seedlings are planted continuously. Configure to do work.
[0010]
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 six strips.
[0011]
Further, as shown in FIGS. 4 and 5, a fertilizer hopper (37) that is a fertilizer tank into which fertilizer is put, a fertilizer feed case (38) that supplies fertilizer in a fixed amount, and a float (34) (35) that is a fertilizer. A turbo blower blower (41) that discharges fertilizer to the side groove grooving device (39) of the side through a flexible conveying hose (40) and a cylindrical air tank (42) are provided to the fertilizer applicator (36). In addition, a blower (41) is attached to the right end of the air tank (42), and six sets of fertilizer feed cases (38) for six strips are arranged on the upper side of 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) which is placed between the upper ends of the left and right columns (43) at the rear end of the body frame (3), A fertilizer applicator (36) is provided via the base frame (45) that is horizontally mounted in the front-rear direction, and an air tank (42) is attached to the left and right base frames (45) (45) via brackets (46) (46). ) Are fastened with bolts. A side stay (47) is connected between the rear end of the base frame (45) and the vehicle body frame (3), and the front and rear elevating rails (48) (49 ), And the fertilizer applicator (36) is mounted so as to be movable up and down via the four lifting rails (48), (48), (49), and (49) in a pair of front and rear. Two The fertilizer (36) is attached so as to be movable up and down by the springs (50) and (50), 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 in FIG. 12, a bearing plate (51) is provided to face the front and rear lifting rails (48) and (49), and bearing rollers (52). (51) is rotatably supported, and two sets of two front and rear rails (48) and (49) are provided symmetrically, and two upper and lower rollers (52 are provided for one rail (48) and (49). ) (52) is attached, 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). 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) (49) and the gas spring ( 50) is erected substantially in parallel, and the gas spring (50) is connected to the position of the center of gravity in the front-rear width direction of the fertilizer applicator (36), and the stretch is substantially equal to or slightly smaller than the weight of the fertilizer applicator (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) (51) are integrally fixed by a round pipe-shaped front frame (53), and the operator grips when lifting the fertilizer applicator (36). The handle (54) is fixed to the front frame (53) by welding, and the left and right bearing plates (51) (51) are rotated by the left and right lock levers (56) (56) via the support shafts (55) (55). The front left and right lifting rails (48) and (48) are engaged with the front left and right bearing plates (51) and (51) via the left and right lock levers (56) and (56), and the rear side Left and right lock pins (57) and (57) are slidably attached to the left and right lifting rails (49) and (49), and the lock pin (57) is engaged with the engagement hole (58) of the bearing plate (51) shown in FIG. Removably engage the rear left and right lifting rails (49) (49) The rear part of the right bearing plate (51) (51) is locked via the left and right lock pins (57) (57), and the front part and the rear part of the bearing plate (51) are locked to the front and rear lifting rails (48) (49). It is fixed by the lever (56) and the lock pin (57). Further, as shown in FIGS. 15 and 19, upper and lower engagement holes (58) and (59) are formed in the elevating rail (48), and a lock lever (56) is engaged in each engagement hole (58) and (59). The fertilizer applicator (36) is fixedly supported at the ascending position or the descending position, and the lock lever (56) extends below the handle (54) and protrudes toward the driver's seat (13). The operator can operate the lock lever (56) while gripping (54) to disengage the lock lever (56) from the engagement holes (58) (59).
[0015]
Further, a case front bracket (60) is fixed to the front frame (53) by welding, and the front side of the feeding case (38) is fixed to the front case bracket (60) by bolting. The feed cases (38), (38) for the strips are disposed between the left and right lifting rails (48), (49), and the feeding cases for the two strips on the left and right sides of the lifting rails (48, 49) (38). ) (38) are arranged, respectively, and 3 units of feeding cases (38)...
[0016]
Further, as shown in FIGS. 16 to 18, the lower outlet (62) of the hopper (37) is fitted to 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 detachable cap (64). The cap (64) is removed, the outlet (63) is opened, and the fertilizer in the hopper (37) is allowed to flow downward on the front side. At this time, the fertilizer applicator (36) is moved up and down rails (48) (49). It is supported at the raised position, the interval between the take-out port (63) and the lower air tank (42) is expanded, and the container for fertilizer can be easily inserted under the take-out port (63), and the residual fertilizer can be taken out. It is configured so that it can be easily performed.
[0017]
A bottom lid (66), which is a case bottom, is detachably fixed to the lower surface of the feeding case (38) via a closing lever (65), and an outlet ( 67), and is provided with a joint pipe (68) made of a soft synthetic resin for fitting the front end portion 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, and the conveyance hose (40) is fitted to the rear end of the joint (69), so that the blower (41) blows air from the air tank (42) to each pipe (68). (40) is used to move the fertilizer falling from the outlet (67) of the bottom lid (66) to the middle of the joint (69) to the transport hose (40). 9) In the middle, the inlet (70) is formed to 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), and the mounting plate (72) is integrally fixed to the air tank (42), and the joint (69) is bolted to the mounting plate (72). It is stopped and fixed.
[0018]
Also, an inlet plate (75) having an inlet (73) and a blower outlet (74), and a feeding plate (77) which is a feeding roll having a plurality of substantially square outlets (76) on the same circumference. And an outlet plate (79) having a discharge port (78), and each plate (75) (77) (79) made of a substantially circular flat plate is formed in a multilayer shape between the feeding case (38) and the bottom lid (66). And a feeding shaft (80), which is a roll drive shaft, is supported on the feeding case (38) so as to be rotatable substantially vertically, and the feeding shaft is provided at the center of each plate (75) (77) (79). (80) The lower end side is penetrated, the spring (81) is elastically pressed from the lower side to the lower surface of the outlet plate (79), and the plates (75), (77), (79) can be pulled out downward to the feeding shaft (80). Each plate (75) (77) (79) is supported by the closing case (65) and the feeding case (38). The inlet plate (75) and the outlet plate (79) are locked to the feeding case (38), and the feeding shaft (80) is attached to each plate (75) (79). At the same time, the feeding plate (77) is pivotally supported on the feeding shaft (80), the feeding plate (77) is forcibly rotated by the feeding shaft (80), and the feeding port (73) is connected to the feeding port (73). 76) The fertilizer that has entered is moved to the outlet (78) and dropped in the direction of the outlet (67).
[0019]
In addition, the partition plate (82) is provided through a photograph (83) that is provided with a rubber partition plate (82) that removes excess fertilizer on the upper surface of the delivery port (76) at the end of the intake port (73). ) Is attached to the feeding case (38) so that the height can be adjusted, and the height of the lower end of the partition plate (82) relative to the upper surface of the feeding plate (77) is adjusted from the outside of the feeding case (38), and the fertilizer is fed from the feeding port (76). It is configured to adjust the amount.
[0020]
Further, a compressed air intake (84) that faces 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 intake (84) are formed. ) Are communicated by the diversion pipe (85), and the air blown 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). 78) The blower outlet (76) moved to the position is blown from the blower outlet (74), and the fertilizer at the outlet (76) is forcibly dropped downward by the blown air, so that the granular fertilizer or this powder is fed into the outlet. (76) It is configured to prevent it from remaining in the area.
[0021]
Further, as shown in FIGS. 7, 10, and 15, the PTO shaft (86) that transmits the output of the engine (2) to the planting part (15) extends rearward from the mission case (4), and A bearing case (87) is welded and fixed to the left column (43), and an input shaft (88) of the bearing case (87) is interlocked and connected to the middle of the PTO shaft (86) via a chain (89). A crank plate (91) is detachably fixed to the rear end portion of the output shaft (90) of (87) by a ball lock structure. The bearing plate (51) and the case rear bracket (92) are provided with a square pipe-shaped rear frame (93), and the rear frame (93) is substantially parallel to the air tank (42) and the front frame (53). Horizontally, the rear side of the feeding case (38) is fixed to the rear bracket (92) with bolts.
[0022]
The left bearing plate (51) is pivotally supported by a feed amount adjustment lever (96) via a bracket (94) and a shaft (95), and the left bearing plate (51) is pivotally supported by a support shaft (97). The adjustment link (98) and the fulcrum link (99) are provided, the adjustment link (98) is connected to the screw portion (100) of the lever (96), and the adjustment fulcrum (101) is attached to the fulcrum link (99). The drive arm (102) is pivotally supported on the fulcrum (101). Then, by rotating the screw part (100) by rotating the lever (96) that protrudes in the direction of the driver's seat (13), the links (98) (99) rotate integrally, and the adjustment fulcrum (101) The position is changed, and an operator of the driver's seat (13) can perform a feed amount adjustment operation 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) to thereby drive the drive. One end of the telescopic rod (106) whose length is adjustable is connected to the arm (102), the other end of the telescopic rod (106) is connected to the swing arm (105), and the crank plate (91 ) To the drive arm (102) via the input rod (107), and the feeding drive shaft (104) from the PTO shaft (86) for planting drive via the input rod (107) and the drive arm (102). The driving force is transmitted to the plant, and a planting part (15) and a fertilizer applicator (36) are operated simultaneously and stopped by turning on and off a planting clutch (not shown), and the crank plate is connected to the output shaft (90). (9 ) To remove the drive part and lift the ascending part of the fertilizer applicator (36). The lever (96) is operated to change the position of the adjustment fulcrum (101), and the telescopic rod (106) is reciprocated. The stroke is changed steplessly and the fertilizer feed amount is continuously adjusted.
[0024]
Further, as shown in FIG. 9, a clutch shaft (109) is pivotally supported on the rear frame (93) through a one-way clutch (108) for preventing rotation, and the one-way clutch (110) is supported on the clutch shaft (109). An input link (111) is provided via the link, and a swing link (112) is fixed to the feeding drive shaft (104), and the link (112) is connected to the input link (111) via a linkage rod (113). The clutch shaft (109) is intermittently rotated in one direction by swinging the input link (111).
[0025]
Further, the fastening clutch case (114) is fixed to the feeding case (38), and the input shaft (117) is always connected to the upper end side of the feeding shaft (80) via bevel gears (115) (116). Then, a latching clutch (not shown) for connecting the input shaft (117) to the clutch shaft (109) is connected to the clutch case (114), and the latching clutch of the case (114) is provided. The clutch lever (118) and the clutch arm (119) for performing the on / off operation are distributed to the front and rear of the clutch case (114), and are provided on the rear rear part of the seedling stage (16) of the planting part (15). Via a stopper wire (122) which is stretched by the outer receiver (121) of the rear frame (98) to the planting stopper unit clutch lever (120) Wherein linking the clutch arm (119). When the planting claw stopping unit clutch lever (120) is operated to stop any of the 6 planting claws (17), the case corresponding to the planting claw (17) stopped. The fertilization operation is stopped by cutting the streak clutch of (114), and fertilization is performed only on the strip where the seedling is planted by the planting claws (17).
[0026]
Further, as shown in FIGS. 12 to 14, the left and right bearing plates (51) (on the front frame (53) and the rear frame (93) on the outer side of the attachment position of the fertilizer feed cases (38) (38) for the central two strips 51) is fixed by welding, and both ends of the front frame (53) and the rear frame (93) are integrally fixed by the 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), and each frame (53), (93), (123) of the square frame shape is attached to the bearing plate. (51) is divided into three equal parts in the left-right direction, and the fertilizer feeding case (38) for six strips is spanned and supported between the front and rear frames (53), (93).
[0027]
As shown in FIGS. 13, 16, and 18, the bracket (60) provided between the feeding case (38) and the front frame (53) has a long-diameter viewing hole (124) in the lateral direction. When assembling the bottom cover (66) to the feeding case (38), the phase and the like can be easily confirmed from the front side without going around the seedling mount (16) side, so as to improve the handleability of the assembling. It is configured.
[0028]
Further, as shown in FIG. 16, when connecting the hose joint (69) and the transfer hose (40), the outlet outer diameter portion of the transfer hose (40) is connected to the outlet inner diameter portion (69a) of the hose joint (69). (40a) is directly inserted and coupled without using a separate joint or the like, so that a lightweight and compact configuration is achieved, and attachment / detachment operation is facilitated to improve maintenance.
[0029]
Furthermore, as shown in FIG. 1 and FIG. 19, an air jet (125) that is an air inflow port tapered from the air intake side to be joined to the joining pipe (68) toward the air blowing side, A fertilizer dropping port (127), which is a fertilizer inflow port formed by a cylinder (126) having an inlet (70), and a confluence delivery port (128) that joins the delivery side to the transfer hose (40) are connected to the hose joint ( 69), the jet outlet (125) and the outlet (128) are arranged on substantially the same straight line, and a fertilizer dropping port (127) is formed at the junction of the jet outlet (125) and the outlet (128). ) Is connected. Then, the cylinder (126) is inclined in a direction in which the inlet (70) side of the cylinder (126) is brought closer to the air tank (42), and 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 to be inclined at an acute angle with respect to the air jet port (125) and ejected from the jet port (125) The air thus moved moves into the dropping port (127), and the air is prevented from blowing out from the inlet (70) of the dropping port (127) into the fertilizer feeding case (38).
[0030]
Further, a straight portion (125a) having a small 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 dropping port (127). ) Is formed in an acute nose portion (126a) to prevent air blowing from the straight portion (125a) to the drop port (127). Then, the end portion (125b) of the straight portion (125a) having the smallest diameter is opened substantially below the center of the fertilizer dropping port (127), and the merged transfer becomes negative pressure by the air jet from the air jet port (125). The air at the fertilizer drop port (127) is sucked in the direction of the outlet (128), and the confluence delivery port (128) downstream of the air jet port (125) is formed in a divergent shape, and the conveying hose (40) is connected. The slope (129) which inclines downward toward the part is formed on the bottom of the confluence outlet (128) to prevent fertilizer accumulation at the bottom of the confluence outlet (128) downstream of the air outlet (125).
[0031]
Further, a flange (130) is provided on the outer periphery of the opening (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 protrusion (130) Provided with a trapezoidal slope (131) and a lower inner diameter that is larger than the upper inner diameter of the flexible rubber fitting cap (71) fitted to the outlet (67) of the bottom lid (66). The vertical end face of the fitting cap (71) has a square shape, and the lower end side is widened. In addition, a thick protrusion (132) is provided on the inner periphery of the intermediate portion of the fitting cap (71), and a thin protrusion (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 the upper side, these protrusions (132) and (133) are elastically adhered to the trapezoidal slope (131), and the gap between the outlet (67) and the inlet (70) is obtained. The gap is configured to be sealed by the fitting cap (71).
[0032]
By the way, the feeding case bottom cover (66) is formed in an inverted conical funnel shape, and is provided so that the center of the outlet (67) is located directly below the extension line of the axis of the feeding shaft (80). When a certain amount of feed fertilizer is discharged from the discharge port (78) at a certain distance from (80) together with the blowing force from the blowout port (74), etc., this is caused by the rotary inertia action by the feed plate (77). The fertilizer is spirally rotated around the feeding shaft (80) as a fertilizer and dropped to the outlet (67) to facilitate smooth discharge without fertilizer clogging at the outlet (67).
[0033]
In other words, the bottom cover (66) is formed in an inverted isosceles funnel shape with the drive shaft (80) as the center, and the fertilizer is dropped in a spiral flow, so that the flow of fertilizer fall is made smooth. Is also difficult to occur, the input force when joining the hose joint (69) is increased, the air blown back from the hose joint (69) is reduced, and even if the fertilizer is damaged, it becomes a spiral flow. Then, the fertilizer is forced to fall with the falling fertilizer, and the side wall portion of the bottom cover (66) has an inclination angle (α) of a predetermined degree or more uniformly around the entire circumference, eliminating the minimum inclination angle portion, and depositing the fertilizer. Is effectively prevented, and smooth discharge of the fertilizer from the outlet (67) is promoted.
[0034]
Further, the diameter (a) of the outlet (67) of the bottom lid (66) is made 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 caliber (b) is formed larger than the caliber (a) (b> a) so that the dropping of fertilizer from the outlet (67) to the inlet (70) is smooth and free from accumulation. It is composed.
[0035]
Further, a cleaning member (135) for preventing fertilizer clogging is provided at the junction (134) between the outlet (67) of the bottom lid (66) and the inlet (70) of the hose joint. 136), a cleaning member (135) is formed, and the outer diameter of the spring (136) is set to a size close to the inner diameter of the outlet (67) and the inlet (70), and is connected to the lower end of the feeding shaft (80). The upper end of the coil spring (136) is connected to a spring holder (137) to be held together via a torsion spring (138) so that the upper end of the coil spring (136) can swing, and the coil spring (136) is rotated when the fertilizer is fed by rotating the feeding shaft (80). Are also integrally rotated to prevent the fertilizer powder and the like from adhering to the outlet (67) and the inlet (70) by a coil spring (136).
[0036]
In addition, the coil spring (136) is a bent hose that is not subject to the fertilizer falling due to the space inside the coil and is supported so as to be able to swing, so that the spring (136) is not subject to a load due to rotation. It is possible to easily remove deposits and the like at the inlet of the joint (69), and further, the direction of drawing a spiral flow when the fertilizer falls from the discharge port (78) and the rotation direction of the spring (136) are the same direction. The spring (136) prevents the fertilizer from falling and prevents the fertilizer from clogging and promotes smooth discharge of the fertilizer.
[0037]
Further, as shown in FIG. 20, the bolts (141) are unscrewed and removed from three mounting bosses (140) that project the spring seat (139) of the bus (81) to the inner periphery of the bottom cover (66). The mounting position of the boss (140) is fixed to the rotational direction (c) side of the feeding plate (77) from the left-right symmetry so as not to hinder the flow of the fertilizer from the discharge port (78) during turning and falling. By shifting the angle (θ), the fertilizer is configured to promote a smooth turning fall.
[0041]
【The invention's effect】
As apparent from the above, the invention according to claim 1 includes a fertilizer feeding case (38) for sending fertilizer, a transport hose (40) for feeding fertilizer to the planting part (15), and the transport hose (40 ) Is connected to an air tank (42) for supplying fertilizer conveying air with a hose joint (69), the fertilizer feeding case (38) is provided with a feeding roll (77), and the feeding roll (77) is driven by a roll. In the rice transplanter configured to be driven by the shaft (80), the fertilizer feeding case (38) is arranged to be movable up and down with respect to the air tank (42) and the hose joint (69), and the fertilizer feeding case A fertilizer dropping port (1) is provided that includes a fitting cap (71) that closes a gap between the outlet (67) of (38) and the fertilizer inlet (70) of the hose joint (69) and communicates with the fertilizer inlet (70). 7) is formed in the hose joint (69), a cleaning member (135) for preventing fertilizer clogging is disposed in the fertilizer dropping port (127), and the cleaning member (135) is mounted on the roll drive shaft (80). Connected. Therefore, for example, even in working conditions where fertilizer clogging is likely to occur, such as fertilizers with a lot of powder or high humidity conditions, adhesion of fertilizer powder etc. at the junction (134) can be reliably prevented by the cleaning member (135), Can reduce fertilizer clogging.
[0042]
In the invention according to claim 2, the cleaning member (135) is formed by a coil spring (136) having a small wire diameter, and the cleaning member (135) is swingably connected to the roll drive shaft (80). , the clogging fertilizer in the fertilizer chute (127) can be satisfactorily prevented, fertilizer is discharged smoothly at a coil spring (136) inside the space, also the cleaning member (135) hinders the fertilizer discharge The fertilizer can be smoothly merged with the conveying air at the hose joint (69) .
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view of a merging portion of a feeding case.
FIG. 2 is a side view of the whole.
FIG. 3 is a plan view of the same.
FIG. 4 is a plan view of a fertilizer applicator unit.
FIG. 5 is a rear view of the same.
FIG. 6 is an explanatory view of the same side.
FIG. 7 is an explanatory side view of an elevating rail part.
FIG. 8 is a side explanatory view of a fertilizer feeding case part.
FIG. 9 is an explanatory plan view of a fertilizer feeding case portion.
FIG. 10 is a rear view of the base frame portion.
FIG. 11 is a rear view of the fertilizer feeding case portion.
FIG. 12 is an explanatory side view of the bearing plate portion.
FIG. 13 is an explanatory plan view of a handle part.
FIG. 14 is an explanatory view of the back side.
FIG. 15 is an explanatory side view of the same.
FIG. 16 is a sectional side view of a fertilizer feeding case.
FIG. 17 is an explanatory rear sectional view of the same section.
FIG. 18 is an explanatory plan view of the same section.
FIG. 19 is an exploded explanatory view of the bottom lid and the hose joint.
FIG. 20 is an explanatory plan view of the bottom lid.
[Explanation of symbols]
(15) Planting part (38) Fertilizer feeding case (40) Transport hose (42) Air tank (66) Bottom cover (bottom part)
(67) Outlet (69) Hose joint (70) Inlet (77) Feeding plate (feeding roll)
(134) Junction (135) Cleaning member (136) Coil spring

Claims (2)

肥料を送出する肥料繰出ケース(38)と、植付部(15)に肥料を送給する搬送ホース(40)と、前記搬送ホース(40)に肥料搬送風を供給するエアタンク(42)とを、ホースジョイント(69)にて連結し、前記肥料繰出ケース(38)に繰出ロール(77)を備え、該繰出ロール(77)をロール駆動軸(80)にて駆動するように構成してなる田植機において、前記エアタンク(42)及びホースジョイント(69)に対して前記肥料繰出ケース(38)を昇降可能に配置し、前記肥料繰出ケース(38)の出口(67)と、ホースジョイント(69)の肥料入口(70)との隙間を塞ぐ嵌合キャップ(71)を備えると共に、前記肥料入口(70)に連通する肥料落下口(127)を前記ホースジョイント(69)に形成し、前記肥料落下口(127)に肥料詰り防止用の掃除部材(135)を配置し、前記掃除部材(135)を前記ロール駆動軸(80)に連結したことを特徴とする田植機。A fertilizer feed case (38) for sending fertilizer, a transport hose (40) for feeding fertilizer to the planting part (15), and an air tank (42) for supplying fertilizer transport wind to the transport hose (40) The fertilizer feed case (38) is connected to the hose joint (69) , and is provided with a feed roll (77), and the feed roll (77) is driven by a roll drive shaft (80). In the rice transplanter, the fertilizer feeding case (38) is arranged to be movable up and down with respect to the air tank (42) and the hose joint (69), and an outlet (67) of the fertilizer feeding case (38) and a hose joint (69 ) And a fertilizer inlet (70) for closing the gap between the fertilizer inlet (70) and a fertilizer drop port (127) communicating with the fertilizer inlet (70) is formed in the hose joint (69). Rice transplanter, characterized in that the fertilizer chute cleaning member for preventing clogging fertilizer (127) (135) are arranged, and connected the cleaning member (135) on the roll drive shaft (80). 前記掃除部材(135)を線径の細いコイルバネ(136)にて形成し、前記ロール駆動軸(80)に前記掃除部材(135)が首振り可能に連結されたことを特徴とする請求項1に記載の田植機。 The cleaning member (135) is formed of a coil spring (136) having a thin wire diameter, and the cleaning member (135) is swingably connected to the roll drive shaft (80). Rice transplanter as described in
JP30073095A 1995-10-03 1995-10-24 Rice transplanter Expired - Fee Related JP3612606B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP30073095A JP3612606B2 (en) 1995-10-24 1995-10-24 Rice transplanter
TW085111029A TW344643B (en) 1995-10-03 1996-09-10 Rice transplanter
CN 01108965 CN1221160C (en) 1995-10-03 1996-09-27 Rice transplanter
CN96113092A CN1073337C (en) 1995-10-03 1996-09-27 Rice transplanter
CN 01108966 CN1241465C (en) 1995-10-03 1996-09-27 Rice transplanter
KR1019960046052A KR100441776B1 (en) 1995-10-24 1996-10-15 Mowing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30073095A JP3612606B2 (en) 1995-10-24 1995-10-24 Rice transplanter

Publications (2)

Publication Number Publication Date
JPH09107755A JPH09107755A (en) 1997-04-28
JP3612606B2 true JP3612606B2 (en) 2005-01-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP30073095A Expired - Fee Related JP3612606B2 (en) 1995-10-03 1995-10-24 Rice transplanter

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JP (1) JP3612606B2 (en)
KR (1) KR100441776B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4659258B2 (en) * 2001-04-23 2011-03-30 アグリテクノ矢崎株式会社 Fertilizer applicator
KR100914558B1 (en) * 2009-04-22 2009-09-02 전대규 Auto cleaner for fertilizing roll and roll case of fertilizing apparatus
JP6645014B2 (en) * 2015-02-26 2020-02-12 井関農機株式会社 Fertilizer application equipment
CN107660365A (en) * 2017-10-17 2018-02-06 中联重机股份有限公司 Fog machine and fog machine fertilizer conveying device
CN108684270B (en) * 2018-08-15 2023-04-25 山东省农作物种质资源中心 Rice seedling bundling device and seedling discharging device

Also Published As

Publication number Publication date
KR970019829A (en) 1997-05-28
JPH09107755A (en) 1997-04-28
KR100441776B1 (en) 2004-10-02

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