JP4236355B2 - Onion harvester - Google Patents
Onion harvester Download PDFInfo
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- JP4236355B2 JP4236355B2 JP35136699A JP35136699A JP4236355B2 JP 4236355 B2 JP4236355 B2 JP 4236355B2 JP 35136699 A JP35136699 A JP 35136699A JP 35136699 A JP35136699 A JP 35136699A JP 4236355 B2 JP4236355 B2 JP 4236355B2
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Description
【0001】
【発明の属する技術分野】
本発明は、玉葱収穫機に関するものである。
【0002】
【従来の技術】
従来、圃場から掘上げた玉葱をコンベヤでコンテナに積込んで行く玉葱収穫機、また玉葱をコンテナへ搬送する過程で土砂、茎葉、小玉及び小石、傷付玉や腐敗玉などを除去することは、実公平3−25540号公報、特開平7−75421号公報、特開平5−84007号公報等において既に公開されて一般に知られている。
【0003】
【発明が解決しようとする課題】
上記のように、圃場で(粗)選別を行う玉葱収穫機なるものは一般に知られているところであるが、本発明は、玉葱をコンテナへ搬送する過程で分離される茎葉を、機体の上に蓄積させることなく圃場に放出することによって、蓄積茎葉による機械器具類の動作不良及び故障を未然に防ぐと共に、機体の保守・点検及び掃除を楽に行うことができるように改善するのを主目的として発明に至ったものである。
【0004】
【課題を解決するための手段】
そこで、本発明は、走行装置を有して前部にエンジンを搭載する機台の前側に掘取刃を、後側に昇降及び回動可能な荷台を設け、荷台にコンテナを搭載し、掘取刃で圃場から掘上げた玉葱を掻込コンベヤで後送コンベヤ上に掻込み、後送コンベヤで持上コンベヤに搬送し、持上コンベヤで機台の前部上方の茎葉分離コンベヤ上に落とし、茎葉分離コンベヤから小玉抜ローラを経て機台の後部上方の選別コンベヤに搬送し、選別コンベヤで後送りしてコンテナに積込む玉葱収穫機において、エンジンのボンネットを側面視で山形状に形成し、茎葉分離コンベヤの前端部をボンネットの頂部より前側の前下がり傾斜面の上方に臨ませたのである。
【0005】
また、小玉抜ローラをボンネットの頂部より後側の後下がり傾斜面の上方に配設したのである。
【0006】
また、機台の後部に受箱を前後に並べて設け、小玉抜ローラから抜落ちた小玉及び小石をボンネットの頂部より後側の後下がり傾斜面で前側の受箱に投入案内し、後側の受箱に選別コンベヤにより後送りする過程で選別作業者によって除去されたものを貯留するのである。
【0007】
【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は玉葱収穫機全体の左側面図、図2は同右側面図、図3は同正面図、図4は同背面図、図5は同平面図であり、図中(1)はクローラ式の走行装置(2)を有する機台、(3)は機台(1)の前半部に設けるエンジン部、(4)はエンジン部(3)の左又は右外側に並設する操縦部、(5)は機台(1)の前側に設ける持上コンベヤ、(6)は持上コンベヤ(5)の下部前側に設ける掻込部、(7)は掻込部(6)の前側に設ける掘取部、(8)は掘取部(7)の左右の分草板(9)の前側に設ける左右のゲージ輪、(10)は持上コンベヤ(5)の上端部とその下方のエンジン部(3)のボンネット(11)との間に設ける茎葉分離部、(12)は機台(1)の後側に設けるフォーク形の荷台、(13)は荷台(12)に搭載する収穫物集積用のコンテナ、(14)は機台(1)の後半部に設ける貯留部、(15)は茎葉分離部(10)の後側から貯留部(14)の上方を通過してコンテナ(13)部に延設する選別部、(16)は選別部(15)の左右外側下方に張設する選別作業者用の左右のステップである。
【0008】
上記の各部について図1乃至図5及び図6乃至図29を用いて説明すると、機台(1)は前後方向に平行な左右の縦フレーム(17)と、左右の縦フレーム(17)の上面に左右方向に平行に横架固定する複数の横フレーム(18)とからなる。
【0009】
エンジン部(3)に設けるエンジン(20)は機台(1)の前部略中央部に搭載し、また同部(3)に設けるミッション(21)はエンジン(20)の前側の機台(1)の前端部略中央部に搭載し、さらに同部(3)において操縦部(4)と反対側のエンジン(20)の一側方には作業用の変速ケース(24)及び図示しない燃料タンク、注油(潤滑油)用のタンク、ポンプ、油圧バルブユニット等を配設し、操縦部(4)側のエンジン(20)の一側方には図示しないラジエータ等を配設している。エンジン(20)及びミッション(21)等の重量物を機台(1)の中央部に配置することで、機体の左右バランスが向上すると共に、機台(1)の後側の重量物、即ち玉葱が満載されたコンテナ(13)と反対側の機台(1)の前部にエンジン(20)及びミッション(21)等の重量物を配置することで、機体の前後バランスも向上する。ミッション(21)は直進用HST(22)と旋回用HST(23)を入力部に有し、操縦部(4)と反対側に突出させるエンジン(20)の出力軸(20a)に直進用HST(22)の油圧ポンプ入力軸をベルト伝動で連動連結させ、その直進用HST(22)の油圧ポンプ入力軸に旋回用HST(23)の油圧ポンプ入力軸を軸伝動で連動連結させ、直進用HST(22)と旋回用HST(23)の各油圧モータを適宜駆動させて動力をミッション(21)に伝達させると共に、エンジン(20)の出力軸(20a)に変速ケース(24)の入力軸(24a)をベルト伝動で連動連結している。
【0010】
エンジン部(3)のボンネット(11)は側面視で山形状に形成し、ボンネット(11)の頂部(11a)より前側の前下がり傾斜面(11b)を機台(1)の前端上方まで延設し、その傾斜面(11b)の先端から機台(1)までに垂直に前壁面(11c)を延設すると共に、ボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)を貯留部(14)の前端上方まで延設し、その傾斜面(11d)の先端から貯留部(14)までに垂直に後壁面(11e)を延設し、エンジン部(3)の上面と前面及び後面を連続して覆っている。ボンネット(11)は機台(1)からエンジン部(3)の左右側部に立設固定する左右のガードフレーム(25)に締結固定させて支持させている。操縦部(4)と反対側のエンジン部(3)の側面をその側のガードフレーム(25)の外側に着脱自在に装着するサイドカバー(26)で覆う一方、操縦部(4)側のエンジン部(3)の側面はその操縦部(4)に設けるサイドコラム(27)で覆い、サイドコラム(27)をエンジン部(3)の一方側のサイドカバーとして兼用している。
【0011】
操縦部(4)はエンジン部(3)の底部の機台(1)をエンジン部(3)の左又は右外側に延出した延出部(1a)の上方に張設するステップ板(28)と、ステップ板(28)の前部略中央部に立設させて上面に丸形の操向ハンドル(29)を設けるハンドルコラム(30)と、ステップ板(28)の内側部でエンジン部(3)の真横に立設させて上面に主変速レバー(31)、副変速レバー(32)、作業クラッチレバー(33)等を設ける前記サイドコラム(27)と、サイドコラム(27)に取付けてハンドルコラム(30)の後側に設ける運転シート(34)と、操縦部(4)の外側後部に外方に倒伏自在に立設するプロテクタ(35)等から成る。また操縦部(4)の前部外側で機台(1)の延出部(1a)とステップ板(28)との間にオペレータ乗降用のステップ(36)を設け、操縦部(4)の前側で機台(1)の延出部(1a)とステップ板(28)との間にフロントカバー(37)を設け、そのフロントカバー(37)に操縦部(4)の前方を照らす前照灯(38)を設け、ハンドルコラム(30)に操縦部(4)側の機体後方を確認するバックミラー(39)を取付けている。プロテクタ(35)は中空に形成され、ステップ板(28)より上側の外面を網目状にし、ステップ板(28)と機台(1)の延出部(1a)との間の内面を開放し、ステップ板(28)と機台(1)の延出部(1a)との間に図示しないエアクリーナと共に設ける外気導入ダクトに外気を吸入させるようにしている。ステップ板(28)と機台(1)の延出部(1a)との間には図示しないバッテリも収納している。
【0012】
エンジン部(3)と荷台(12)との間の機台(1)の後半部に櫓形の選別台(40)を立設固定し、選別台(40)の上側に選別部(15)を搭載支持し、選別台(40)の下部内側に貯留部(14)を設け、選別台(40)の中間部から左右外側に選別作業者用の左右のステップ(16)を延出支持している。
【0013】
貯留部(14)は選別台(40)の前側の左右の脚部(40a)と後側の左右の脚部(40b)の間に上面を開放した同形の受箱(41)(42)を前後に並べて設けている。前後の受箱(41)(42)はコンテナ(13)と略同じ横幅を有しており、左右外側部は機台(1)より外側に張り出している。その前後の受箱(41)(42)の左右中央部に隔壁(43)を設け、貯留部(14)に4つの受箱(41a)(41b)(42a)(42b)を形成し、左側の前後受箱(41a)(42a)の底面(44a)(45a)と右側の前後受箱(41b)(42b)の底面(44b)(45b)を外側が低くなる傾斜面に形成し、隔壁(43)に対向する左側の前後受箱(41a)(42a)の外壁面と右側の前後受箱(41b)(42b)の外壁面をシャッターである蓋板(46a)(47a)(46b)(47b)で開放自在に閉鎖し、前後の受箱(41)(42)を左右対称のホッパー構造に形成している。これによって各受箱(41a)(41b)(42a)(42b)からの貯留物の排出が蓋板(46a)(46b)(47a)(47b)を開くだけで簡単に行えるようになっている。
【0014】
選別作業者用の左右のステップ(16)は選別台(40)の外側に張り出す左側の前後受箱(41a)(42a)の外側部上面と右側の前後受箱(41b)(42b)の外側部上面で支持して、エンジン部(3)と荷台(12)との間で操縦部(4)のステップ板(28)と略同じ高さに張設している。これによって操縦部(4)側のステップ(16)に選別作業者が操縦部(4)を経由して乗降するときの、操縦部(4)とステップ(16)との間の乗り移りが安全に行えるようになっている。左右のステップ(16)の外側部に鉄パイプ製のさく(48)を着脱自在に立設し、選別作業者のステップ(16)からの落下事故をさく(48)によって防止し、また乗降時の取手及び作業時の背もたれとしてさく(48)を用いるようにしている。選別作業者用の左右のステップ(16)の横幅は左右のステップ(16)の外側端部がコンテナ(13)より若干外側に張り出す長さに形成し、左右のステップ(16)のさらに外側にも左右の補助ステップ(16a)を連設している。その左右の補助ステップ(16a)はメインのステップ(16)より長尺に形成し、補助ステップ(16a)の前端部をメインのステップ(16)の前端部に揃えて、補助ステップ(16a)の後部をメインのステップ(16)の後端部より後方に突出させ、補助ステップ(16a)の後部をコンテナ(13)の左右外側まで延出している。これによってコンテナ(13)に積込まれた玉葱を選別作業者が均平にするとき等、補助ステップ(16a)の後部に移動することによって、メインのステップ(16)の後部に立った場合には手が届かないコンテナ(13)の後側及び奥側に手が届くようになり、玉葱のコンテナ(13)詰めをバランスよく行えるようになっている。操縦部(4)と反対側のステップ(16)の前端側にこのステップ(16)への乗降用はしご(49)を有する乗降用ステップ(16b)を連設している。その乗降用ステップ(16b)はステップ(16)の前端側からエンジン部(3)の外側に延出し、外側部から下方に向けて乗降用はしご(49)を延出している。乗降用はしご(49)は乗降用ステップ(16b)の上側に反転格納自在にその乗降用ステップ(16b)に連設し、また乗降用ステップ(16b)は格納状態の乗降用はしご(49)と一体的にステップ(16)の前部に折立格納自在にそのステップ(16)に連設している。乗降用ステップ(16b)をステップ(16)の前部に折立格納しておくことによって、その格納状態の乗降用ステップ(16b)が操縦部(4)と反対側のステップ(16)の前側からの選別作業者の落下事故防止の役目をするようになっている。また乗降用ステップ(16b)を用いることによって、地上からでは目視できず手も届かないエンジン部(3)の上部及びその上方の茎葉分離部(10)及びその上方の持上コンベヤ(5)の上部等の保守点検及び掃除等が操縦部(4)側だけでなくその反対側からも行えるようになっている。
【0015】
貯留部(14)の各蓋板(46a)(46b)(47a)(47b)は下端側を支点軸(50)に回動自在に枢支し、各蓋板(46a)(46b)(47a)(47b)の外面側上部に設けた係止レバー(51)をステップ(16)側に設けた係止片(52)に下方から差込むことによって、各蓋板(46a)(46b)(47a)(47b)を閉鎖状態で保持し、係止レバー(51)を手で引下げて係止片(52)から引抜くことによって、各蓋板(46a)(46b)(47a)(47b)を開放可能としている。係止レバー(51)はコイルバネ(53)で常時上方に弾圧付勢して係止片(52)との係合状態を保持するようになっている。貯留部(14)の各受箱(41a)(41b)(42a)(42b)の各底面(44a)(44b)(45a)(45b)及び各蓋板(46a)(46b)(47a)(47b)及びステップ(16)(16a)(16b)等はフレームで枠を形成して金網で面を形成することによって、泥土の付着及び堆積を防ぐと共に、掃除が楽に行え、またステップ(16)(16a)(16b)にあっては滑止効果も得られて安全性の向上に寄与する。左右の補助ステップ(16a)は乗降用ステップ(16b)と同様にメインのステップ(16)に複数のヒンジ(54)で折立格納自在に連設し、機体を倉庫等に格納するときに左右の補助ステップ(16a)を折立状態に格納することによって、機体の横幅を縮小し、機体の格納スペースを少しでも縮小するようにしている。
【0016】
持上コンベヤ(5)の左右のコンベヤ側板(55)の上端部を、エンジン部(3)の左右のガードフレーム(25)上に立設固定する左右の支持フレーム(56)の上部内面側に、左右の支点軸(57)を介して回動自在に支持すると共に、機台(1)の前端部に後端部を回動自在に連結する左右の揺動アーム(58)を設け、左右の揺動アーム(58)の前端部を左右のコンベヤ側板(55)の下部外面側に回動自在に連結し、左右の揺動アーム(58)を一体に連結している横連結フレーム(59)と機台(1)との間に油圧シリンダ(60)を張設し、持上コンベヤ(5)を機台(1)の前側に昇降自在に支持するようにしている。持上コンベヤ(5)は油圧シリンダ(60)を伸縮させることによって支点軸(57)を中心に昇降する。左右の支点軸(57)と同一軸芯上で左右のコンベヤ側板(55)の上端部に回転自在に駆動軸(61)を横架すると共に、左右のコンベヤ側板(55)の下端部に従動軸(62)を回転自在に横架し、左右のコンベヤ側板(55)の内面側で上端部の駆動軸(61)と下端部の従動軸(62)との間に左右の駆動スプロケット(63)及び左右の従動スプロケット(64)を介して左右の無端状のコンベヤチェン(65)を張設し、玉葱を乗せる多数の棚(66)を左右のコンベヤチェン(65)間に等間隔に横架して、持上コンベヤ(5)を構成し、持上コンベヤ(5)はその下部前側に設けた掻込部(6)から搬出される玉葱を持上コンベヤ(5)の前面側下端部に次々に回行移動する棚(66)に順次受入れてその棚(66)の上動によって上方に持上げ搬送し、持上コンベヤ(5)の上部回行部で棚(66)が搬送側から非搬送側に回行移動するときに、棚(66)から玉葱を排出し、下方の茎葉分離部(10)上に落とすようにしている。棚(66)は左右のコンベヤチェン(65)に固定する左右のL形端片(67)と、左右のL形端片(67)の対応する端部及び折曲部の間に平行に横架する3本の横棒(68)とから成り、各横棒(68)の表面にゴムをコーティングすることによって、玉葱に傷を付けるのを防止している。
【0017】
掻込部(6)は左右の掻込側板(69)と後送コンベヤ(70)と掻込コンベヤ(71)とを有し、左右の掻込側板(69)間の下部に後送コンベヤ(70)を後上がり傾斜状態に設け、その後送コンベヤ(70)の上方に対向させて掻込コンベヤ(71)を後上がり傾斜状態で設けている。左右の掻込側板(69)の後部に回転自在に横架している後送コンベヤ(70)の駆動軸(72)の左右端部を、持上コンベヤ(5)の左右のコンベヤ側板(55)の下端部を前側に突出させて設けた左右の突出部(55a)に回転自在に軸受けすることで、左右の掻込側板(69)の後部を左右の突出部(55a)に回動自在に連結している。掻込部(6)の回動支点を兼ねる駆動軸(72)と、左右の掻込み側板(69)の前部下端部に横架している従動軸(73)との間に左右の駆動スプロケット(74)及び左右の従動スプロケット(75)を介して左右の無端状のコンベヤチェン(76)を左右の掻込側板(69)の内側に張設すると共に、多数の横杆(77)を左右のコンベヤチェン(76)間に等間隔に横架して、後送コンベヤ(70)を構成している。後送コンベヤ(70)は掘取部(7)の掘取刃(78)の直後から持上コンベヤ(5)の下部回行部の上側に後上がり傾斜状態で張設し、掘取部(7)の掘取刃(78)で圃場から掘上げられて掻込コンベヤ(71)で後送コンベヤ(70)上に掻込む玉葱を、後送コンベヤ(70)で後上方に搬送し、後送コンベヤ(70)の後端から持上コンベヤ(5)の前面側下端部に次々に回行移動する棚(66)に上方から落とし入れるようにしている。これによって後送コンベヤ(70)から持上コンベヤ(5)の棚(66)への玉葱の受継ぎがスムーズに行え、その受継部での玉葱の停滞及び詰まり、それによる傷付き等を防止している。
【0018】
掻込コンベヤ(71)は、駆動軸(79)と従動軸(80)との間に左右の駆動スプロケット(81)及び左右の従動スプロケット(82)を介して左右の無端状のコンベヤチェン(83)を左右の掻込側板(69)の内側で張設すると共に、玉葱に傷を付けないゴム製の掻込板(84)を数枚左右のコンベヤチェン(83)間に等間隔に横架して構成している。掻込コンベヤ(71)の駆動軸(79)は左右の掻込側板(69)の前部上部に横架支持する一方、掻込コンベヤ(71)の従動軸(80)は駆動軸(79)に左右のコンベヤチェン(83)の図示しない左右のチェンレールで連結されてこの平行な2軸(80)(79)の軸間距離を保持して左右の掻込側板(69)の前側に横架するもので、左右の掻込側板(69)から前方に一体延出して前端に左右のゲージ輪(8)を支持する左右の支持フレーム(85)の中間部に掻込コンベヤ(71)の前部を支持する左右の支持部(86)を設け、従動軸(80)の左右の端部を一端側で回転自在に軸受けする左右の軸受アーム(87)の他端側を左右の支持部(86)に摺動自在に貫通させ、割ピン(88)、バネ座(89)及びコイルバネ(90)で弾力的に左右の軸受アーム(87)の抜止めを図り、掻込コンベヤ(71)を後部の駆動軸(79)を中心に前部を持上がり勝手に支持すると共に、複数の調節孔(91)で割ピン(88)の差込位置を調節して掻込コンベヤ(71)の前部の支持高さを調節する。通常の掘上げ深さ又はそれ以下では掻込コンベヤ(71)を、掻込板(84)の先端軌跡(84a)の直走部が後送コンベヤ(70)の搬送側に若干ラップ又は平行接触ように、後送コンベヤ(70)と略平行状態又は平行状態で支持し、掘上げ深さが深くなるに連れて、掻込板(84)の先端軌跡(84a)の直走部を後送コンベヤ(70)の搬送側から離すように、掻込コンベヤ(71)の前部の支持高さを適宜高くして行く(掻込コンベヤ(71)の後上がり傾斜を緩くする)。掻込コンベヤ(71)は作業中は圃場表面の凹凸や掻込負荷の大小に追従して前部が上下動するようになっている。また各掻込板(84)の先端部から高さ方向に切欠溝(92)を設けると共に、その切欠溝(92)を幅方向に等間隔に設け、掻込板(84)を櫛歯状に形成して土の掻込みを減らすようになっている。掻込コンベヤ(71)は掘取刃(78)による玉葱の掘上げと略同時又は同時に掻込板(84)による掻込みを開始し、玉葱を順次後送コンベヤ(70)上に掻込むと共に、後送コンベヤ(70)に掻込んだ玉葱がこの傾斜面で前側に転がり落ちるのを防ぎながら、後送コンベヤ(70)で玉葱を後上方に搬送できるようにしている。
【0019】
掘取部(7)は左右の分草板(9)と幅広の掘取刃(78)とを有する。掘取刃(78)は左右の分草板(9)の後端部下端部で横架固定している。左右の分草板(9)は掻込部(6)の左右の掻込側板(69)の前部下部に後端部を連結して、掻込側板(69)の前部下部から前側に延出し、掘取刃(78)を後送コンベヤ(70)の直前に横架支持している。掘取部(7)は左右の分草板(9)で掘上げる玉葱と未掘上げの玉葱とを分離し、掘取刃(78)で左右の分草板(9)間の玉葱を掘上げるようにしている。左右の分草板(9)の前端は玉葱に傷を付けるのを防止するため丸味を付けている。丸味付けは左右の分草板(9)の前端に断面円形の金属棒(93)を取付ける他、分草板(9)の前端を曲げ加工して行うことができる。左右の分草板(9)の前端に別の部材を取付けて丸味付けする場合、その材質はゴム等の弾性材が好ましい。掘取刃(78)はその刃先を後送コンベヤ(70)の搬送面の延長線上に置くことによって、玉葱の掘上げから後送コンベヤ(70)上への掻込みをスムーズに行えるようにしている。掘取刃(78)の全体を後送コンベヤ(70)の搬送面の延長線上に置くように、掘取刃(78)を後上がり傾斜状に設けてもよい。
【0020】
左右のゲージ輪(8)は掻込部(6)の左右の掻込側板(69)から前方に一体延出した左右の支持フレーム(85)の前端部に取付けている。ゲージ輪(8)は車軸(94)を介して車軸受け(95)に回転自在に軸支すると共に、車軸受け(95)の上面に回転自在に立設した垂直なケージ軸(96)を、左右の支持フレーム(85)の前端部に固設した軸受け(97)に上下方向に摺動自在に嵌合し、軸受け(97)とケージ軸(96)をこれらを貫通するピンで固定している。そのピンの差込位置をゲージ軸(96)に設けた複数の調節孔で調節して掘取部(7)及び掻込部(6)の対地高さを調節するようにしている。ゲージ輪(8)はケージ軸(96)を中心に旋回できて向きを換えることができる。また車軸受け(95)から下側でむきだしのゲージ輪(8)の前部から左右側を地面近くまで覆うゴム製のスカート(98)を設け、未掘上げの玉葱をゲージ輪(8)で踏付けるのを防止するようになっている。左右の支持フレーム(85)の前端部を横連結フレーム(99)で連結し、ゲージ輪(8)及び掘取部(7)及び掻込部(6)の支持剛性を高めるようにしている。
【0021】
左右のゲージ輪(8)及び掘取部(7)及び掻込部(6)は持上コンベヤ(5)の下部前側に後送コンベヤ(70)の駆動軸(72)を中心に一体的に回動自在に支持している。持上コンベヤ(5)の一側のコンベヤ側板(55)とそれと同じ側の掻込部(6)の一側の掻込側板(69)を油圧シリンダ(100)によって側板(55)(69)外面側で連結し、左右のゲージ輪(8)及び掘取部(7)及び掻込部(6)を持上コンベヤ(5)と共に油圧シリンダ(60)の伸縮によって支点軸(57)を中心に昇降させる一方、油圧シリンダ(100)を伸縮させることによって左右のゲージ輪(8)及び掘取部(7)及び掻込部(6)のみを後送コンベヤ(70)の駆動軸(72)を中心に昇降させるようにしている。
【0022】
持上コンベヤ(5)の従動軸(62)の一端とその側の後送コンベヤ(70)の駆動軸(72)の一端とを、持上コンベヤ(5)の一側のコンベヤ側板(55)の外面側で、出力スプロケット(101)及び入力スプロケット(102)及びテンションローラ(103)及び伝動チェン(104)を介して連動連結し、持上コンベヤ(5)の回転を後送コンベヤ(70)に伝達し、後送コンベヤ(70)を持上コンベヤ(5)と同方向で駆動するようにしている。後送コンベヤ(70)の駆動軸(72)の他端とその側の掻込コンベヤ(71)の駆動軸(79)の一端とを、掻込部(6)の一側の掻込側板(69)の外面側で、出力スプロケット(105)及び入力スプロケット(106)及びテンションローラを兼用する2個の外掛ローラ(107)及び伝動チェン(108)を介して連動連結し、後送コンベヤ(70)の回転を掻込コンベヤ(71)に伝達し、掻込コンベヤ(71)を後送コンベヤ(70)と逆方向に駆動するようにしている。
【0023】
持上コンベヤ(5)の回転を後送コンベヤ(70)に伝達する伝動チェン(104)のチェンカバー(109)を持上コンベヤ(5)一側のコンベヤ側板(55)に設け、それと反対側にある掻込部(6)の一側の掻込側板(69)に、後送コンベヤ(70)の回転を掻込コンベヤ(71)に伝達する伝動チェン(108)のチェンカバー(110)を設け、左右のゲージ輪(8)及び掘取部(7)及び掻込部(6)を昇降させる油圧シリンダ(100)は持上コンベヤ(5)の回転を後送コンベヤ(70)に伝達する伝動チェン(104)のチェンカバー(109)がある側で、持上コンベヤ(5)の一側のコンベヤ側板(55)と掻込部(6)の一側の掻込側板(69)との間に張設している。
【0024】
後送コンベヤ(70)から持上コンベヤ(5)への受継部の左右側に玉葱に傷を付けないゴム板製の左右のガイド板(111)を設けている。左右のガイド板(111)は後送コンベヤ(70)の後部上側で、掻込部(6)の左右の掻込側板(69)の後部内面側から持上コンベヤ(5)の左右のコンベヤ側板(55)の突出部(55a)の内面側に延出している。左右のガイド板(111)はこの矯正基板(112)と共に前端部を掻込部(6)の左右の掻込側板(69)に取付けて、以降後部を矯正基板(112)によって若干内側に折曲げた状態で持上コンベヤ(5)の左右のコンベヤ側板(55)の突出部(55a)の内面側に延出し、後送コンベヤ(70)から持上コンベヤ(5)の棚(66)の幅内で玉葱を搬送受継ぎするようにしている。これによって玉葱を後送コンベヤ(70)の後端から持上コンベヤ(5)の棚(66)に確実に落とし込むことができると共に、持上コンベヤ(5)の棚(66)の左右外側にある左右のコンベヤチェン(65)、駆動スプロケット(63)及び駆動軸(61)及び従動スプロケット(64)及び従動軸(62)等に土が付着するのを減らし、これらの耐久性を向上するようになっている。また左右のガイド板(111)は掻込部(6)の左右の掻込側板(69)と持上コンベヤ(5)の左右のコンベヤ側板(55)の突出部(55a)との間の切目を塞ぎ、その切目からの玉葱のこぼれ落ちも防止するようになっている。
【0025】
茎葉分離部(10)は左右のコンベヤ側板(113)と茎葉分離コンベヤ(114)とを有し、茎葉分離コンベヤ(114)は左右の支持フレーム(56)の間で、持上コンベヤ(5)の上端部とその下方のエンジン部(3)のボンネット(11)との間に後下がり傾斜状態に設けている。茎葉分離コンベヤ(114)は前端部をボンネット(11)の頂部(11a)より前側の前下がり傾斜面(11b)の上方に臨ませ、以降後部をボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)の上方に配設している。茎葉分離コンベヤ(114)は左右のコンベヤ側板(113)の後端部にローラ軸(115)を介して横架する駆動ローラ(116)と左右のコンベヤ側板(113)の前端部にローラ軸(117)を介して横架する従動ローラ(118)との間に玉葱に傷を付けないゴム製で幅広の無端状のコンベヤベルト(119)を張設して構成している。茎葉分離コンベヤ(114)は後下がり傾斜状態に設けるのに対して搬送方向は前向きであり、茎葉分離コンベヤ(114)はその上方に設けた持上コンベヤ(5)の後端から落とされる玉葱を搬送側面で受け止めることによって、玉葱を茎葉分離コンベヤ(114)の後下がりの傾斜面で転動落下させ、後側の選別部(15)に入れる一方、茎葉分離コンベヤ(114)の後下がりの傾斜面上に残る茎葉を前側に搬送し、茎葉分離コンベヤ(114)の前端から排出してボンネット(11)の頂部(11a)より前側の前下がり傾斜面(11b)上に落とし、玉葱を茎葉と分離するようにしている。ボンネット(11)の頂部(11a)より前側の前下がり傾斜面(11b)上に落ちた茎葉はその前下がり傾斜面(11b)上で滑落ち、エンジン部(3)の前側で機台(1)の前側から圃場に放出するようになっている。これによって玉葱をコンテナ(13)へ搬送する過程で分離される茎葉を、機体の上に蓄積させることなく圃場に放出でき、蓄積茎葉による機械器具類の動作不良及び故障を未然に防ぐと共に、機体の保守・点検及び掃除を楽に行うことができるようになっている。またボンネット(11)が茎葉放出シュートの役目を果たし、専用の茎葉放出シュートが不要になり、コストの削減に寄与している。
【0026】
茎葉分離コンベヤ(114)のコンベヤベルト(119)の表面には幅方向に平行に低く小さい(玉葱の転動落下には影響しない程度のもの)突起(120)を等間隔に設け、茎葉が茎葉分離コンベヤ(114)の後下がりの傾斜面を滑落ちるのを防止すると共に、細かい土や石等も茎葉と一緒に排出するようにし、茎葉分離性能を向上させるようにしている。また茎葉分離コンベヤ(114)の駆動ローラ(116)のローラ軸(115)の左右の端部を左右のコンベヤ側板(113)の外側に立設している左右の支持フレーム(56)に回転自在に支持すると共に、操縦部(4)側の支持フレーム(56)の外面側に設ける操作レバー(121)の基端部と左右の支持フレーム(56)の内面側に設ける左右の操作アーム(122)の基端部とを左右の支持フレーム(56)に回転自在に横架する支軸(123)を介して連動連結し、左右の操作アーム(122)の先端部を長孔(124)及び連結ピン(125)を介して左右のコンベヤ側板(113)に連結し、茎葉分離コンベヤ(114)の後下がり傾斜角度を調節可能に茎葉分離コンベヤ(114)を左右の支持フレーム(56)に支持するようにしている。茎葉分離コンベヤ(114)の後下がり傾斜角度は操作レバー(121)を前後方向に操作することによって、それに連動して操作アーム(122)が上下方向に揺動し、それに連動して茎葉分離コンベヤ(114)の前部が後部の駆動ローラ(116)のローラ軸(115)を支点に上下動して変更され、操縦部(4)側の支持フレーム(56)の外面に設けた係止部材(126)に操作レバー(121)を固定することによって茎葉分離コンベヤ(114)を所定の後下がり傾斜角度で保持するようになっている。係止部材(126)は茎葉分離コンベヤ(114)を急傾斜と緩傾斜に保持する固定片(126a)(126b)を有し、茎葉分離コンベヤ(114)の後下がり傾斜角度を多段的に切換調節するものを示しているが、無段的に切換調節する構造にしてもよい。茎葉分離コンベヤ(114)の後下がり傾斜角度を調節することによって、茎葉が茎葉分離コンベヤ(114)の後下がりの傾斜面を滑落ちたり、逆に玉葱が茎葉分離コンベヤ(114)の前端から排出されるのを防止し、茎葉分離性能をより一層向上させるようにしている。
【0027】
茎葉分離コンベヤ(114)のコンベヤベルト(119)の左右側部内面に左右のVベルト(127)を貼付けると共に、左右のVベルト(127)を巻掛ける左右のV溝(128)を駆動ローラ(116)と従動ローラ(118)とに設け、幅広のコンベヤベルト(119)の蛇行を防止するようにしている。
【0028】
操縦部(4)と反対側の支持フレーム(56)の下部にアイドル軸(129)を回転自在に設け、エンジン部(3)において操縦部(4)と反対側のエンジン(20)の一側方に設けた作業用の変速ケース(24)の出力軸であるPTO軸(130)とアイドル軸(129)とを、操縦部(4)と反対側の支持フレーム(56)の内面側で、出力プーリ(131)及び入力プーリ(132)及び伝動ベルト(133)及びテンションローラである作業クラッチ(134)を介して継断自在に連動連結し、アイドル軸(129)の一端と持上コンベヤ(5)の駆動軸(61)の一端とを、操縦部(4)と反対側の支持フレーム(56)の外面側で、出力スプロケット(135)及び入力スプロケット(136)及び2個のアイドルローラ(137)及びテンションローラ(138)及び伝動チェン(139)を介して連動連結し、エンジン(20)の動力で持上コンベヤ(5)を駆動すると共に、その持上コンベヤ(5)に連動連結している後送コンベヤ(70)及び掻込コンベヤ(71)を駆動するようにしている。アイドル軸(129)の一端と茎葉分離コンベヤ(114)の駆動ローラ(116)のローラ軸(115)の一端とを、操縦部(4)と反対側の支持フレーム(56)の外面側で、出力スプロケット(140)及び入力スプロケット(141)及び外掛け用の2個のアイドルローラ(142)及びテンションローラ(143)及び伝動チェン(144)を介して連動連結し、エンジン(20)の動力で茎葉分離コンベヤ(114)を持上コンベヤ(5)と逆方向に駆動するようにしている。
【0029】
作業クラッチ(134)を入り方向に常時付勢するクラッチバネ(145)を連結するクラッチ操作アーム(146)に、操縦部(4)のサイドコラム(27)に設けた作業クラッチレバー(33)に一端側を連結する操作ワイヤ(147)の他端側と、持上コンベヤ(5)の操縦部(4)と反対側のコンベヤ側板(55)の下部に一端側を連結する操作ワイヤ(148)の他端側とを連結し、作業クラッチ(134)を作業クラッチレバー(33)によって入切操作すると共に、持上コンベヤ(5)を最上昇位置に持ち上げたとき安全のために自動的に作業クラッチ(134)を切り操作し、持上コンベヤ(5)及び後送コンベヤ(70)及び掻込コンベヤ(71)及び茎葉分離コンベヤ(114)を停止させるようにしている。これによって安全性の向上、オペレータの労力の軽減、旋回時のエンジン(20)負荷の軽減、搬送中の玉葱の片寄り防止等を図るようにしている。
【0030】
選別部(15)は左右の選別フレーム(149)と小玉抜コンベヤ(150)と選別コンベヤ(151)とこれらコンベヤ(151)(150)の駆動源である油圧モータ(152)と左右の放出シュート(153)とを有し、小玉抜コンベヤ(150)を茎葉分離コンベヤ(114)の後側で、エンジン部(3)のボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)の上方に、後上がり傾斜状態で設け、選別コンベヤ(151)を小玉抜コンベヤ(150)の後側から頂留部(14)の上方を通過させてコンテナ(13)部に延設し、左右の放出シュート(153)を選別コンベヤ(151)の前部外側に設けている。
【0031】
小玉抜コンベヤ(150)は前側の茎葉分離コンベヤ(114)と後側の選別コンベヤ(151)との間に玉葱に傷を付けない合成樹脂製の複数の小玉抜ローラ(154)を前後方向に並設すると共に、後側の小玉抜ローラ(154)ほど支持高さが低くなるように、各小玉抜ローラ(154)をローラ軸(155)を介して左右の選別フレーム(149)に回転自在に横架して構成している。小玉抜ローラ(154)はローラ軸(155)に嵌合固定する小径ローラ部(154a)上に薄い円板形状の大径ローラ部(154b)を等間隔に設けていて、各小玉抜ローラ(154)の大径ローラ部(154b)を隙間なく前後方向に直列に並べ、前後方向に直列に並ぶ各小玉抜ローラ(154)の小径ローラ部(154a)の間に所定の大きさの隙間を形成している。
【0032】
小玉抜コンベヤ(150)の最後の小玉抜ローラ(154)の直後で左右の選別フレーム(149)の前部に横架している駆動軸(156)と、左右の選別フレーム(149)の後端部に横架している従動軸(157)との間に、左右の駆動スプロケット(158)及び左右の従動スプロケット(159)を介して左右の無端状のコンベヤチェン(160)を左右の選別フレーム(149)の内側に張設すると共に、多数の横杆であるコンベヤローラ(161)をそれぞれローラ軸(162)を介して左右のコンベヤチェン(160)の間に等間隔に横架して、選別コンベヤ(151)を構成している。選別コンベヤ(151)の駆動軸(156)と従動軸(157)の各軸上に回行時のコンベヤローラ(161)を摺接させる左右の円板状の回行ガイド(163)を設け、各コンベヤローラ(161)を搬送側から非搬送側及びその逆にスムーズに回行移動させるようにしている。選別コンベヤ(151)のコンベヤローラ(161)の左右側部を搬送側の直走部でこの前端から後端に亘って、転がり接触させる左右のレール(164)を設け、左右の選別フレーム(149)を一体連結している複数の横連結フレーム(165)を左右のレール(164)に貫通させ、左右のレール(164)を選別コンベヤ(151)の搬送面と非搬送面との間で左右のコンベヤチェン(160)の内側に固定支持している。左右のレール(164)のコンベヤローラ(161)との接触面をゴム製のカバー(164a)で覆い、左右のレール(164)とコンベヤローラ(161)との接触面の摩擦を大きくしてコンベヤローラ(161)がスリップするのを防止している。左右の選別フレーム(149)の下端から内側に直角に延出する左右の延出部(149a)を設け、選別コンベヤ(151)の非搬送側のコンベヤローラ(161)の左右側部の直下に左右の延出部(149a)を延出し、選別コンベヤ(151)の非搬送側のコンベヤローラ(161)の左右側部を左右の延出部(149a)で下側から支持し、選別コンベヤ(151)の非搬送側面が垂下がるのを防止している。左右の延出部(149a)は左右の選別フレーム(149)の剛性を高めながら選別コンベヤ(151)の非搬送側面の垂下がりを防止している。
【0033】
操縦部(4)と反対側の選別フレーム(149)の前部外面側にモータベース(166)を介して油圧モータ(152)を取付け、油圧モータ(152)の出力軸(152a)と選別コンベヤ(151)の駆動軸(156)とを、操縦部(4)と反対側の選別フレーム(149)の外面側で、出力スプロケット(167)及び入力スプロケット(168)及び伝動チェン(169)を介して連動連結し、小玉抜コンベヤ(150)の隣接する小玉抜ローラ(154)のローラ軸(155)同志を、操縦部(4)と反対側の選別フレーム(149)の外面側で、2個の伝動スプロケット(170)と伝動チェン(171)を介して連動連結し、小玉抜コンベヤ(150)の全ての小玉抜ローラ(154)のローラ軸(155)を連動連結し、選別コンベヤ(151)の駆動軸(156)と小玉抜コンベヤ(150)の最後部の小玉抜ローラ(154)のローラ軸(155)とを、操縦部(4)と反対側の選別フレーム(149)の外面側で、出力スプロケット(172)及び入力スプロケット(173)及び伝動チェン(174)を介して連動連結し、専用に設けた駆動源である油圧モータ(152)の動力で選別コンベヤ(151)と小玉抜コンベヤ(150)の全ての小玉抜ローラ(154)を、玉葱を後送りするように同方向に駆動するようにしている。油圧モータ(152)のポンプポートに流量調節弁を設け、その流量調節弁の開度を調節ツマミで調節することによって、選別コンベヤ(151)及び小玉抜コンベヤ(150)の駆動速度(後送り速度)を玉葱の収穫量、選別作業者の選別能力等に応じて適宜変更調節するようにしている。
【0034】
小玉抜コンベヤ(150)はその前側に設けた茎葉分離コンベヤ(114)から転動落下してくる玉葱を受入れ、受入れた玉葱のうち標準大以下の小玉及び小石等を各小玉抜ローラ(154)の小径ローラ部(154a)の間の隙間から落とし、その隙間から抜落ちない標準大以上の玉葱のみを各小玉抜ローラ(154)の大径ローラ部(154b)で後送りして後側の選別コンベヤ(151)に送込むようにしている。
【0035】
選別コンベヤ(151)はその前側に設けた小玉抜コンベヤ(150)を通過した標準大以上の玉葱を受入れ、自転しながら後方に移動しているコンベヤローラ(161)上で順次後方に搬送して行き、その搬送過程で左右のステップ(16)に搭乗している選別作業者によって標準大以上の玉葱のうち傷付玉や腐敗玉等の不良品が除去され、標準大以上で傷や腐りが入っていない良品(規格内品)の玉葱だけを後端部まで後送りして後端からコンテナ(13)に落とすようにしている。
【0036】
小玉抜コンベヤ(150)の各小玉抜ローラ(154)の各大径ローラ部(154b)ごとに1個のスクレーパ(175)を設けている。スクレーパ(175)は鉄板をコ形に折曲げると共に、左右の側片(175a)の間の主片(175b)の先端部中央に大径ローラ部(154b)を回転自在に嵌め込む大径ローラ部(154b)と略同幅の切欠溝(176)を形成している。小玉抜ローラ(154)の1本分のスクレーパ(175)は、各スクレーパ(175)の主片(175b)が同一平面上に設けられて、各スクレーパ(175)の切欠溝(176)が同一方向に向くように、各スクレーパの左右の側片(175a)に貫通させる1本の横連結杆(177)上で、各スクレーパ(175)が横一列に等間隔に並ぶ状態で一体連結して小玉抜ローラ(154)の1本分のスクレーパ(175)郡を構成している。複数の小玉抜ローラ(154)のうち最後部の小玉抜ローラ(154)以外の小玉抜ローラ(154)にはその下側でスクレーパ(175)郡の横連結杆(177)を各スクレーパ(175)の主片(175b)が立つ状態で左右の選別フレーム(149)に横架し、小玉抜ローラ(154)の各大径ローラ部(154b)をスクレーパ(175)郡の各スクレーパ(175)の主片(175b)の切欠溝(176)に嵌込むことによって、大径ローラ部(154b)が回転して切欠溝(176)を通過するとき、大径ローラ部(154b)の端面及び左右の側面に付着する泥土及び屑葉等を主片(175b)で掻落とすと同時に、主片(175b)の先端で小径ローラ部(154a)の周面に付着する泥土及び屑葉を掻落とし、小玉抜ローラ(154)への泥土の付着堆積及び屑葉の巻付堆積によって、小玉抜ローラ(154)の小径ローラ部(154a)の間の隙間が小さくなり又は塞がれ、小玉及び小石の分離性能が低下するのを防止するようになっている。複数の小玉抜ローラ(154)のうち最後部の小玉抜ローラ(154)にはその後側の選別コンベヤ(151)の前側の回行部との間でスクレーパ(175)郡の横連結杆(177)を各スクレーパ(175)の主片(175b)を寝かせる状態で左右の選別フレーム(149)に横架し、小玉抜ローラ(154)の各大径ローラ部(154b)をスクレーパ(175)郡の各スクレーパ(175)の主片(175b)の切欠溝(176)に嵌込むことによって、最後部以外の小玉抜ローラ(154)のスクレーパ(175)郡と同様の作用効果を得ると共に、最後部の小玉抜ローラ(154)とその後側の選別コンベヤ(151)の前側の回行部との間(小玉抜コンベヤ(150)と選別コンベヤ(151)との受継部)の隙間をスクレーパ(175)郡が埋めてさらに各スクレーパ(175)の主片(175b)で架橋することによって、前側の小玉抜コンベヤ(150)から後側の選別コンベヤ(151)の受継部で玉葱を停滞させたり詰まらせることなくスムーズに受継搬送するようになっている。またスクレーパ(175)郡を小玉抜コンベヤ(150)と選別コンベヤ(151)との間の受継ガイドとして利用することによって専用の受継ガイドが不用になり、コストの削減に寄与している。最後部のスクレーパ(175)郡の各スクレーパ(175)の主片(175b)には玉葱を傷付けないためのゴム板(175c)を貼付けている。
【0037】
選別コンベヤ(151)の搬送面を形成する多数のコンベヤローラ(161)のうち、あるコンベヤローラ(161a)が非搬送側の直走部終端側に移動したときその直後のコンベヤローラ(161)との隙間を拡大させ、搬送側のコンベヤローラ(161)の隙間から抜落ちて非搬送側のコンベヤローラ(161)の隙間を抜落ちずに前側の回行部内側に溜まる小石等を定期的に排出する詰まり防止機構(178)を設けている。詰まり防止機構(178)は、あるコンベヤローラ(161a)のローラ軸(162)の左右の端部をその直前のコンベヤローラ(161)のローラ軸(162)の左右の端部に左右の揺動リンク(179)によって回動変移自在に支持すると共に、コンベヤローラ(161)を搬送側では直走部の始端(コンベヤ前端)から終端(コンベヤ後端)までを上部ガイドである左右のレール(164)によって支持し、非搬送側では直走部の始端(コンベヤ後端)から終端(コンベヤ前端)の手前までを下部ガイドである左右の延出部(149a)によって支持することで、左右の揺動リンク(179)によって直前のコンベヤローラ(161)に回動変移自在に支持したコンベヤローラ(161a)が左右の延出部(149a)が無い非搬送側直走部終端に移動すると、該コンベヤローラ(161a)がその直前のコンベヤローラ(161)の真下に吊下がる状態に回動変移し、その直後のコンベヤローラ(161)との隙間を拡大するようにしている。詰まり防止機構(178)は選別コンベヤ(151)の中に、左右のコンベヤチェン(160)に回動変移自在に支持するコンベヤローラ(161)を設ける本数は適宜選択することができる。1本だけ設ける場合には、搬送側のコンベヤローラ(161)の隙間から抜落ちて非搬送側のコンベヤローラ(161)の隙間を抜落ちずに前側の回行部内側に溜まる小石等の排出を、選別コンベヤ(151)の1回転当たり1回行い、2本等間隔に設ける場合には選別コンベヤ(151)の2分の1回転当たり1回行い、3本等間隔に設ける場合には選別コンベヤ(151)の3分の1回転当たり1回行い、n本等間隔に設ける場合には選別コンベヤ(151)のm分の1回転当たり1回行うようになる(n=m)。詰まり防止機構(178)によって選別コンベヤ(151)の駆動軸(156)及び左右の駆動スプロケット(158)及び左右のコンベヤチェン(160)を小石等の噛込みによって耐久性を著しく低下させるのを防止するようになっている。選別コンベヤ(151)の前端を貯留部(14)の前側の受箱(41)の上方まで延出し、詰まり防止機構(178)によって選別コンベヤ(151)の前端部から下方に排出される小石等を貯留部(14)の前側の受箱(41)に貯留するようにしている。選別コンベヤ(151)の非搬送側の直走部の終端(コンベヤ前端)の手前から前側の回行部の下側を経て小玉抜コンベヤ(150)の後端部の下側までの左右の選別フレーム(149)を下方に膨出する左右の膨出部(180)を部分的に設け、左右の膨出部(180)で左右の延出部(149a)を他の部分より下側に設けることによって、左右の揺動リンク(179)によって直前のコンベヤローラ(161)に回動変移自在に支持したコンベヤローラ(161a)を非搬送側直走部終端の手前から前側の回行部の前端で直前のコンベヤローラ(161)の真下に吊下がる状態に回動変移できるようにしている。油圧モータ(152)は操縦部(4)と反対側の選別フレーム(149)の膨出部(180)の前部外面側にモータベース(166)を介して取り付け、小玉抜コンベヤ(150)及び選別コンベヤ(151)から外れる位置に油圧モータ(152)を配置し、油圧モータ(152)から小玉抜コンベヤ(150)及び選別コンベヤ(151)への伝動スペースを適正に確保するようにしている。
【0038】
左右の選別フレーム(149)の上端から内側に延出する左右の縁部(149b)を設け、小玉抜コンベヤ(150)の搬送面側の左右側部及び選別コンベヤ(151)の搬送面側の左右側部とを左右の選別フレーム(149)の左右の縁部(149b)から連続して覆い、小玉抜コンベヤ(150)の搬送面側の左右側部及び選別コンベヤ(151)の搬送面側の左右側部と左右の選別フレーム(149)の上端との隙間を塞ぐゴム板製の左右の側部カバー(181)を設け、小玉抜コンベヤ(150)の搬送面側の左右側部及び選別コンベヤ(151)の搬送面側の左右側部と左右の選別フレーム(149)の上端との隙間から小玉抜コンベヤ(150)の左右側部及び選別コンベヤ(151)の左右側部に玉葱、小石、屑葉、塵埃等が侵入し、小玉抜コンベヤ(150)の各小玉抜ローラ(154)のローラ軸(162)の軸受部、選別コンベヤ(151)の駆動軸(156)及び従動軸(157)の軸受部、左右の駆動スプロケット(158)及び左右の従動スプロケット(158)及び左右のコンベヤチェン(160)等の耐久性を著しく低下させるのを防止すると共に、選別作業者の手を小玉抜コンベヤ(150)の左右側部及び選別コンベヤ(151)の左右側部の回動部に誤って巻込む等の事故を防止し、安全性の向上を図っている。小玉抜コンベヤ(150)及び選別コンベヤ(151)の左右側部で搬送されている玉葱が左右の選別フレーム(149)に当たって傷付くのを防止している。
【0039】
掘取部(7)の掘取刃(78)と掻込部(6)の掻込コンベヤ(71)及び後送コンベヤ(70)と持上コンベヤ(5)と茎葉分離部(10)の茎葉分離コンベヤ(114)とエンジン部(3)のボンネット(11)とは、エンジン部(3)の底部にある機台(1)の前半部の横幅と略同じ横幅を有し、選別台(40)の底部にある機台(1)の前半部に比べて横幅が狭い機台(1)後半部の横幅と略同じ横幅を選別部(15)の小玉抜コンベヤ(150)及び選別コンベヤ(151)は有している。茎葉分離コンベヤ(114)から小玉抜コンベヤ(150)への受継部の左右側に玉葱に傷を付けないゴム板製の左右のガイド板(182)を設けている。左右のガイド板(182)は茎葉分離コンベヤ(114)の左右のコンベヤ側板(113)から上方に延出する矯正基板(183)の内面側に取付けて、持上コンベヤ(5)と茎葉分離コンベヤ(114)の左右側の間(持上コンベヤ(5)から茎葉分離コンベヤ(114)への受継部の左右側)に前部を延設し、以降後部を矯正基板(183)によって茎葉分離コンベヤ(114)上で内側に折曲げて茎葉分離コンベヤ(114)の後端部の有効搬送幅を小玉抜コンベヤ(150)の横幅と略同じ幅に縮小して後端部を小玉抜コンベヤ(150)の左右上側部に延出し、茎葉分離コンベヤ(114)からこれより横幅が狭い小玉抜コンベヤ(150)の横幅内で玉葱を搬送受継ぎするようにしている。これによって玉葱を茎葉分離コンベヤ(114)からこれより横幅が狭い小玉抜コンベヤ(150)に確実に受継ぎさせるようになっている。
【0040】
持上コンベヤ(5)の上端部を覆うコンベヤカバー(184)を設け、コンベヤカバー(184)を左右のコンベヤ側板(55)の上端部の上側に張設し、持上コンベヤ(5)の棚(66)の先端軌跡(66a)の上部回行部の直後にコンベヤカバー(184)の後端部を延出すると共に、コンベヤカバー(184)の後端から玉葱に傷を付けないゴム板製の垂れ幕(185)を垂下し、持上コンベヤ(5)の棚(66)の先端軌跡(66a)の上部回行部の後側部を垂れ幕(185)で覆い、持上コンベヤ(5)の上部回行部で棚(66)が搬送側から非搬送側に回行移動するときに棚(66)から排出される玉葱が遠心力で後方に飛出すのを垂れ幕(185)で防止し、下方の茎葉分離コンベヤ(114)上に確実に玉葱を落とすようにしている。垂れ幕(185)の先端部には上下方向にスリットを入れ、スリットを垂れ幕(185)の幅方向に等間隔に設けている。
【0041】
茎葉分離コンベヤ(114)から小玉抜コンベヤ(150)への受継部に上方から垂下する玉葱に傷を付けないゴム板製の垂れ幕(186)を設け、左右端部を左右の支持フレーム(56)の上部内面側に固定して持上コンベヤ(5)の棚(66)の先端軌跡(66a)の上部回行部の後側部の垂れ幕(185)のさらに後側に横架する枠フレーム(187)に垂れ幕(186)の上端を固定し、垂れ幕(186)を枠フレーム(187)から茎葉分離コンベヤ(114)の後端又は小玉抜コンベヤ(150)の前端又はこれらの間までに垂下し、玉葱が茎葉分離コンベヤ(114)の後下がり傾斜面を転動落下して小玉抜コンベヤ(150)に入るときに垂れ幕(186)に当てて減速及び均平化させ、小玉抜コンベヤ(150)を素通りすることのない適正速度及び適正層厚で玉葱を茎葉分離コンベヤ(114)から小玉抜コンベヤ(150)に受渡し、小玉抜コンベヤ(150)上で小玉及び小石等を確実に漏下させるようにしている。垂れ幕(186)の先端部には上下方向にスリットを入れ、スリットを垂れ幕(186)の幅方向に等間隔に設けている。
【0042】
機台(1)の前側の持上コンベヤ(5)の下部から掘取部(7)及びその前方の圃場を照らす掘取作業用ライト(188)と、機台(1)の後部上方の選別コンベヤ(151)の搬送側面を照らす選別作業用ライト(189)とを設け、掘取作業用ライト(188)を持上コンベヤ(5)の上端部を覆うコンベヤカバー(184)の前部中央部に取付ける一方、選別作業用ライト(189)を茎葉分離コンベヤ(114)から小玉抜コンベヤ(150)への受継部に垂れ幕(186)を垂下支持するために左右の支持フレーム(56)の上部後側に横架した枠フレーム(187)の中央部に取付け、各ライト(188)(189)をその照射方向の変更調節がエンジン部(3)の一側の操縦部(4)又はエンジン部(3)の他側の乗降用ステップ(16b)のいずれからでも行える位置に取付けている。各ライト(188)(189)を機体の最上部で、掘取作業用ライト(188)は持上コンベヤ(5)から掘取部(7)等の昇降に追従して照射方向を変更し、選別作業用ライト(189)は持上コンベヤ(5)の昇降に関係なく固定して照射方向を一定方向に保持する位置に取付けている。
【0043】
小玉抜コンベヤ(150)はエンジン部(3)のボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)の上方に配設して、小玉抜コンベヤ(150)から抜落ちる小玉及び小石等をエンジン部(3)のボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)上に落とすようにしている。ボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)上に落ちた小玉及び小石等はその後下がり傾斜面(11d)上で滑落ち、エンジン部(3)の後側から貯留部(14)の前側の左右の受箱(41a)(41b)に投入貯留するようになっている。これによって玉葱をコンテナ(13)へ搬送する過程で分離されて圃場に放置しない小玉及び小石等を圃場に放置する茎葉と分離して適正に貯留し、小玉及び小石等の後処理を楽に行うことができるようになっている。またボンネット(11)が小玉抜コンベヤ(150)から貯留部(14)の前側の左右の受箱(41a)(41b)への投入シュートの役目を果たし、専用の投入シュートが不要になり、コストの削減に寄与している。ボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)はこの傾斜下端側が選別台(40)の直前で選別台(40)の前側の左右の脚部(40a)の間隔と略同じ横幅に狭められて、その横幅の狭い後下がり傾斜面下端部(11f)を選別台(40)の前側の左右の脚部(40a)の間から選別台(40)の内側に延出し、貯留部(14)の前側の左右の受箱(41a)(41b)の前壁面までこれと同一平面上に後下がり傾斜面下端部(11f)と同じ横幅で垂直な後壁面(11e)を延出している。ボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)の上面に直角に立設固定させる左右のガイド側板(190)を設け、左右のガイド側板(190)は上端部を傾斜面(11d)の傾斜上端側の左右端部から立上げ、下端部を傾斜面下端部(11f)の左右端部から立上げるように、中間部を内側に傾斜状に折曲げていてる。左右のガイド側板(190)は小玉抜コンベヤ(150)から抜落ちて傾斜面(11d)上に落ちる小玉及び小石等がこの傾斜面(11d)の左右外側にこぼれ落ちて圃場に放出されるのを防止すると共に、傾斜面(11d)上で小玉及び小石等が滑落ちるに連れて内側に寄せて行き、傾斜面下端部(11f)では選別台(40)の前側の左右の脚部(40a)の間隔以内に内側に寄せて、選別台(40)の前側の左右の脚部(40a)の間を通過させて貯留部(14)の前側の左右の受箱(41a)(41b)に投入貯留するようになっている。これによって小玉及び小石等の回収ロスをなくすと共に、小玉及び小石等が貯留部(14)の前側の左右の受箱(41a)(41b)に略均等に投入することができ、機体の左右バランスが一方に傾くのを防止している。ボンネット(11)の後壁面(11e)を垂直ではなく後下がり傾斜状に設けることによって、小玉及び小石等を貯留部(14)の前側の左右の受箱(41a)(41b)にこの前部からではなく前後方向中央部から投入することができるものである。
【0044】
選別部(15)の左右の放出シュート(153)は選別作業者用の左右のステップ(16)の前後方向中央部の左右の選別フレーム(149)の外側から貯留部(14)の後側の左右の受箱(42a)(42b)の開放上面までに設けている。左右の放出シュート(153)は左右の選別フレーム(149)に固設している。左右の放出シュート(153)は上面を左右の選別フレーム(149)の上面と略同じ高さで上向きの開口して選別コンベヤ(151)の前部の左右外側に選別作業者によって除去される傷付き玉及び腐敗玉等を投入する投入口(153a)を形成することによって、傷付き玉及び腐敗玉等の取り上げから投入口(153a)への投入を体は無論のこと腕もあまり動かさずに行え、選別作業者の負担を軽減すると共に、選別精度の向上を図っている。左右の放出シュート(153)は下部を貯留部(14)の隔壁(43)に向けて内側に傾斜させ、後側の左右の受箱(42a)(42b)の開放上面からその受箱(42a)(42b)の奥部に傷付き玉及び腐敗玉等を排出するようにし、ホッパー形の受箱(42a)(42b)に適正に傷付玉及び腐敗玉等を貯留させるようにしている。選別作業者によって除去される傷付き玉及び腐敗玉等は小玉抜コンベヤ(150)で分離される小玉及び小石等と分離して貯留することによって、小玉及び小石等と傷付玉及び腐敗玉等の後処理を楽に行うことができるようになっている。
【0045】
選別部(15)は小玉抜コンベヤ(150)と選別コンベヤ(151)と油圧モータ(152)と左右の放出シュート(153)とが左右の選別フレーム(149)に一体的に組付けて構成している。機台(1)の後半部に立設固定した選別台(40)に支点軸(191)を介して選別部(15)を左右に傾動自在に支持すると共に、選別台(40)と選別部(15)との間にガス又は油圧シリンダ形のスプリング(192)を張設し、選別部(15)を機台(1)に左右に傾動調節可能に支持している。選別台(40)の左右の前後脚部(40a)(40b)の上端に横架する左右の上部縦フレーム(40c)の中間部に中央横連結フレーム(40d)を横架し、横連結フレーム(40d)の左右中央部と後側の左右の脚部(40b)の上端に横架する後部横連結フレーム(40e)の左右中央部とから上方に前後の下部支点板(193)を対向状態で突設固定し、選別コンベヤ(151)の前部下側と中間部下側とで左右の選別フレーム(149)の間に対向状態で横架する前後の上部支点フレーム(194)を設け、前後の下部支点板(193)の上端部に前後の上部支点フレーム(194)の左右中央部を機体前後方向で同一軸芯上に設ける前後の支点軸(191)を介してこの前後の支点軸(191)回りで回動自在に連結し、選別台(40)に選別部(15)を左右に傾動自在に支持している。後側の上部支点フレーム(194)の左右一側部から下方に上部ブラケット(195)を突出固定し、選別台(40)の後側の左右一側の脚部(40b)の中間部から内側に下部ブラケット(196)を突出固定し、上下のブラケット(195)間にスプリング(192)を張設し、選別部(15)を機台(1)と平行又は左右に傾斜状態で選別台(40)に固定支持している。選別部(15)の傾斜角度の調節は選別作業者用の左右又は左右一側のステップ(16)の後部上面側に設けた足踏ペダル(197)を足で踏み、スプリング(192)の図示しない圧抜バルブを大気に開放操作してスプリング(192)が伸縮できるようにし、その状態で左右の選別フレーム(149)の一方を押下げ又は持上げることによって行うことができるようにしている。その調節後足踏みペダル(197)から足を外すことによって、足踏ペダル(197)がバネで自動復帰し、スプリング(192)の図示しない圧抜きバルブを自動的に閉じて、スプリング(192)の長さを固定し、調節後の選別部(15)の傾斜角度を保持するようになっている。選別台(40)に選別部(15)の傾動用ストッパーである左右の緩衝ゴム(198)を設けている。選別台(40)の左右の上部縦フレーム(40c)の上面に緩衝ゴム(198)を取付け、選別部(15)の左右の傾動限度位置で上部支点フレーム(194)の左右端部に横架した左右の縦連結フレーム(199)を緩衝ゴム(198)に当接させることによって、選別部(15)の左右の傾動範囲を規制するようにしている。
【0046】
機台(1)の後端に左右の支柱(200)を垂直に立設固定し、左右の支柱(200)の上部後側面に形成する縦長のガイド孔(201)に回動支点軸(202)を介して荷台(12)をこの背面側上部で昇降及び回動自在に支持すると共に、機台(1)の後端部と荷台(12)の背面部との間に左右の油圧シリンダ(203)を張設し、左右の油圧シリンダ(203)を伸縮させて荷台(12)を昇降及び回動させるようにしている。左右の油圧シリンダ(203)を最縮小状態に縮小させ、ガイド孔(201)の下端に回動支点軸(202)が位置する最下降位置に荷台(12)を降ろした状態で機体を前後に移動させることによってコンテナ(13)の積み降ろしを行い、空のコンテナ(13)を搭載した状態で左右の油圧シリンダ(203)を最縮小状態から伸長させて行き、ガイド孔(201)の上端に回動支点軸(202)が位置する最上昇位置に荷台(12)を持上げ、さらに左右の油圧シリンダ(203)を最伸長状態まで伸長させて行き、ガイド孔(201)の上端に位置する回動支点軸(202)を中心に荷台(1)と共に空のコンテナ(13)を前方に回動させ、空のコンテナ(13)を前向きに傾斜させて選別コンベヤ(151)の後部を空のコンテナ(13)の中に入れ、この状態で玉葱の収穫作業を開始し、以後、選別コンベヤ(151)の後端から排出されてコンテナ(13)に積み込まれる玉葱の量に応じて左右の油圧シリンダ(203)を最伸長状態から縮小して行き、ガイド孔(201)の上端に位置する回動支点軸(202)を中心に荷台(1)と共にコンテナ(13)を後方に回動させ、コンテナ(13)を順次起こして行きながら玉葱を積み込み、荷降ろしが近ずいたらガイド孔(201)の上端に回動支点軸(202)が位置する最上昇位置で荷台(12)を起立させてコンテナ(13)を起立状態に戻し、コンテナ(13)が満杯になるまで玉葱を積み込み、コンテナ(13)が満杯になると左右の油圧シリンダ(203)を最縮小状態に縮小させ、ガイド孔(201)の下端に回動支点軸(202)が位置する最下降位置に荷台(12)を降ろし、満杯状態のコンテナ(13)を荷台(12)から圃場に降ろし、空のコンテナ(13)を荷台(12)に積み込むようにしている。荷台(12)の背面側上部から左右外側に左右のガイドアーム(204)を延出し、左右のガイドアーム(204)の先端からコンテナ(13)の左右の側壁の上部外側に延出する左右位置決用の左右のガイド爪(205)を設け、コンテナ(13)が左又は右に位置ずれして荷台(12)に積み込まれ、コンテナ(13)に積み込まれる玉葱重量によって機体の左右バランスが崩れるのを防止するようになっている。左右のガイドアーム(204)は選別作業者用の左右のステップ(16)の上方で直後に横架されて左右のステップ(16)の後端からの選別作業者の落下を防止するガードの役目を果たすようになっている。
【0047】
機台(1)の左右の縦フレーム(17)の下側に機体左右方向に平行な前後の回動支点軸(206)を横架している。前後の回動支点軸(206)は左右端部を左右の軸受け(207)を介して機台(1)の左右の縦フレーム(17)に支持している。前後の回動支点軸(206)は左右のスイングアーム(208)の中間部を回転自在に軸支させていて、クローラ式の走行装置(2)の左右のトラックフレーム(209)の前部及び後部に機体左右方向に平行な前後の枢支軸(210)を固設し、左側のトラックフレーム(209)の前後の枢支軸(210)を左側の前後のスイングアーム(208)の一端に回転自在に軸受けさせる一方、右側のトラックフレーム(209)の前後の枢支軸(210)を右側の前後のスイングアーム(208)の一端に回転自在に軸受けさせ、左右のトラックフレーム(209)を前後一対のスイングアーム(208)を介して機台(1)の左右の縦フレーム(17)に昇降自在に連結している。前後の回動支点軸(206)の間の機台(1)の横フレーム(18)と後側の左右のスイングアーム(208)の他端との間に左右の油圧シリンダ(211)を張設すると共に、前後のスイングアーム(208)の他端を長さ調節自在な連結ロッド(212)を介して連結し、左側の油圧シリンダ(211)の伸縮動作で左側の前後のスイングアーム(208)を揺動作動させ、左側のトラックフレーム(209)を上下動させる一方、右側の油圧シリンダ(211)の伸縮動作で右側の前後のスイングアーム(208)を揺動作動させ、右側のトラックフレーム(209)を上下動させるようにしている。
【0048】
機台(1)の前端部略中央部に搭載したミッション(21)から左右外側に左右のファイナルケース(213)を延出し、左右のファイナルケース(213)の端部に突出する左右の出力軸(214)上に左右の駆動スプロケット(215)を設け、左右のトラックフレーム(209)に複数の下部転輪(216)及び下部転輪兼テンション調節用の遊動輪(217)を設け、機台(1)の前端側下方に設けた左右の駆動スプロケット(215)と機台(1)の後端側下方に設けた左右の遊動輪(217)との間で無端状のゴム製の左右のクローラ(218)を巻掛け、左右のクローラ(218)を下部転輪(216)及び遊動輪(217)で接地支持し、最後部の下部転輪(216)から遊動輪(217)間の左右のクローラ(218)も接地支持し、左右のクローラ(218)を機台(1)の後端部まで接地させて左右のクローラ(218)の接地長さを拡大し、機体の安定化を図り、駆動スプロケット(215)と遊動輪(217)との間の左右のクローラ(218)の非接地側中間部を機台(1)に支持させる固定の上部転輪(219)で支持すると共に、上部転輪(219)と遊動輪(217)との間の左右のクローラ(218)の非接地側後部を左右のトラックフレーム(209)に設けるクローラガイド(220)で支持し、クローラ式の走行装置(2)を構成し、左右のクローラ(218)を同じ回転方向で同じ回転速度で駆動することによって機体の前後方向の直進走行を行い、左右のクローラ(218)を逆方向に駆動することによって機体の左又は右旋回を行い、左右のクローラ(218)を同じ回転方向で異なる回転速度で駆動することによって機体進行方向の修正を行うようにしている。
【0049】
機台(1)の略中央部に機台(1)の左右の傾斜角度を検知する水平センサ(221)と、左右の油圧シリンダ(211)の左右の電磁切換弁のソレノイド(222)とを、コントローラ(223)に接続し、コントローラ(223)は水平センサ(221)で検知する機台(1)の左右の傾斜角度が「0」、即ち水平状態になるように左右のソレノイド(222)を励磁させて左右の油圧シリンダ(211)を作動制御し、機台(1)、即ち機体を水平に維持するようにしている。圃場が左側(右側)に傾斜している場合、左側(右側)の油圧シリンダ(211)を伸長させて左側(右側)のトラックフレーム(209)で左側(右側)のクローラ(218)の接地部を下動させ、機台(1)の左側(右側)を機台(1)が水平状態に戻るまで持上げ、機台(1)の水平維持を図るようになっている。
【0050】
機台(1)に左右に傾動調節可能に支持した選別部(15)は通常機台(1)と平行に支持固定しておき、機台(1)の水平維持によって選別部(15)の選別コンベヤ(151)の搬送面を玉葱が一側に片寄ることのないように水平に維持するようにしている。そして通常二人の選別作業者が一人しかいない場合等、その一人の選別作業が搭乗する選別コンベヤ(151)の一側を若干低くするように選別部(15)を機台(1)に対して傾けて支持することによって、選別コンベヤ(151)で後送りされる玉葱を一人の選別作業側に片寄せることができ、体は無論のこと腕もあまり動かさずに選別作業を行え、選別作業者の負担を軽減すると共に、選別精度の向上を図っている。
【0051】
ミッション(21)の入力部に設けた直進用HST(22)と旋回用HST(23)は、直進用HST(22)に操縦部(4)のサイドコラム(27)に設けた主変速レバー(31)操作を伝えて変速操作し、旋回用HST(23)にハンドルコラム(30)に設けた丸形の走行ハンドル(29)操作をハンドルコラム(30)の図示しない内部機構によって主変速レバー(31)の操作位置に応じた操作量に変換して伝えて変速操作し、ミッション(21)に動力を伝達するようしている。丸形の走行ハンドル(29)によって自動車感覚で機体を操向操作できて容易で且つスムーズに掘取条に対応できるようになっている。
【0052】
操縦部(4)と反対側の機体側方でエンジン(20)から持上コンベヤ(5)及び茎葉分離コンベヤ(114)への伝動を行い、操縦部(4)と反対側の機体側方に選別部(15)の駆動源(152)を設けて、操縦部(4)と反対側の機体側方で駆動源(152)から小玉抜コンベヤ(150)及び選別コンベヤ(151)への伝動を行い、操縦部(4)に搭乗するオペレータの騒音対策を図るようにしている。選別作業者が一人の場合、操縦部(4)側のステップ(16)に搭乗することによってその選別作業者の騒音も軽減される。選別部(15)の左右の放出シュート(153)の一方又は両方の近傍に小玉抜コンベヤ(150)及び選別コンベヤ(151)の駆動/停止操作部材(224)と操縦部(4)に搭乗するオペレータへの報知器の操作部材(225)とを設けている。
【0053】
【発明の効果】
以上実施例から明らかなように本発明の玉葱収穫機は、走行装置(2)を有して前部にエンジン(20)を搭載する機台(1)の前側に掘取刃(78)を、後側に昇降及び回動可能な荷台(12)を設け、荷台(12)にコンテナ(13)を搭載し、掘取刃(78)で圃場から掘上げた玉葱を掻込コンベヤ(71)で後送コンベヤ(70)上に掻込み、後送コンベヤ(70)で持上コンベヤ(5)に搬送し、持上コンベヤ(5)で機台(1)の前部上方の茎葉分離コンベヤ(114)上に落とし、茎葉分離コンベヤ(114)から小玉抜ローラ(154)を経て機台(1)の後部上方の選別コンベヤ(151)に搬送し、選別コンベヤ(151)で後送りしてコンテナ(13)に積込む玉葱収穫機において、エンジン(20)のボンネット(11)を側面視で山形状に形成し、茎葉分離コンベヤ(114)の前端部をボンネット(11)の頂部(11a)より前側の前下がり傾斜面(11b)の上方に臨ませたもので、玉葱をコンテナ(13)へ搬送する過程で分離される茎葉を、機体の上に蓄積させることなく圃場に放出でき、蓄積茎葉による機械器具類の動作不良及び故障を未然に防ぐと共に、機体の保守・点検及び掃除を楽に行うことができる。
【0054】
小玉抜ローラ(154)をボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)の上方に配設したもので、玉葱をコンテナ(13)へ搬送する過程で分離されて圃場に放置しない小玉及び小石等を圃場に放置する茎葉と分離して適正に貯留し、小玉及び小石等の後処理を楽に行うことができる。
【0055】
機台(1)の後部に受箱(41)(42)を前後に並べて設け、小玉抜ローラ(154)から抜落ちた小玉及び小石をボンネット(11)の頂部(11a)より後側の後下がり傾斜面(11d)で前側の受箱(41)に投入案内し、後側の受箱(42)に選別コンベヤ(151)により後送りする過程で選別作業者によって除去されたものを貯留するもので、選別作業者によって除去される傷付玉及び腐敗玉等を小玉抜ローラ(154)で分離される小玉及び小石等と分離して貯留することによって、小玉及び小石等と傷付玉及び腐敗玉等の後処理を楽に行うことができる。
【図面の簡単な説明】
【図1】 玉ねぎ収穫機全体の左側面図
【図2】 玉ねぎ収穫機全体の右側面図
【図3】 玉ねぎ収穫機全体の正面図
【図4】 玉ねぎ収穫機全体の背面図
【図5】 玉ねぎ収穫機全体の平面図
【図6】 走行装置部の側面説明図
【図7】 走行装置部の正面説明図
【図8】 エンジン部の平面説明図
【図9】 茎葉分離部の側面説明図
【図10】 茎葉分離部の平面説明図
【図11】 持上コンベヤへの伝動説明図
【図12】 茎葉分離部の角度調節説明図
【図13】 掘取部の側面説明図
【図14】 掘取部の平面説明図
【図15】 選別部の側面説明図
【図16】 貯留部の平面説明図
【図17】 貯留部前部の背面説明図
【図18】 貯留部後部の背面説明図
【図19】 選別部の側面説明図
【図20】 選別部の平面説明図
【図21】 選別部前部の側面説明
【図22】 小玉抜ローラの説明図
【図23】 選別コンベヤの説明図
【図24】 選別部の背面説明図
【図25】 荷台部の側面説明図
【図26】 荷台部の正面説明図
【図27】 荷台部の平面説明図
【図28】 荷台部の部分説明図
【図29】 収穫作業説明図
【符号の説明】
(1) 機台
(2) 走行装置
(5) 持上コンベヤ
(11) ボンネット
(12) 荷台
(13) コンテナ
(20) エンジン
(41) 受箱
(42) 受箱
(70) 後送コンベヤ
(71) 掻込コンベヤ
(78) 掘取刃
(114)茎葉分離コンベヤ
(151)選別コンベヤ
(154)小玉抜ローラ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an onion harvester.
[0002]
[Prior art]
Conventionally, the onion harvester that loads the onion dug up from the field into the container with the conveyor, and the removal of earth and sand, foliage, pebbles and pebbles, damaged balls and spoiled balls in the process of transporting the onion to the container is In Japanese Utility Model Publication No. 3-25540, Japanese Patent Application Laid-Open No. 7-75421, Japanese Patent Application Laid-Open No. 5-84007, and the like, they are already publicly known.
[0003]
[Problems to be solved by the invention]
As described above, what is known as an onion harvesting machine that performs (coarse) sorting in a field is generally known. However, the present invention provides a method in which foliage separated in the process of transporting onion to a container is placed on the body. The main purpose is to prevent malfunctions and breakdowns of machinery and equipment due to accumulated foliage by releasing them to the field without accumulating them, and to improve the machine so that maintenance, inspection and cleaning can be performed easily. Invented.
[0004]
[Means for Solving the Problems]
Accordingly, the present invention provides a digging blade on the front side of the machine base having the traveling device and the engine mounted on the front side, and a cargo bed that can be raised and lowered on the rear side, and a container is mounted on the cargo bed, The onion dug from the field with the cutting blade is scraped onto the post-feed conveyor by the scraping conveyor, transported to the lifting conveyor by the post-feed conveyor, and dropped onto the foliage separation conveyor above the front of the machine base by the lifting conveyor. In the onion harvester that transports from the foliage separation conveyor to the sorting conveyor above the rear of the machine base through a small ball extraction roller, and then feeds it to the container by the sorting conveyor, the engine bonnet is formed in a mountain shape in side view. The front end portion of the foliage separation conveyor is made to face the front downward inclined surface on the front side from the top of the bonnet.
[0005]
Further, the small ball removing roller is disposed above the rear-falling inclined surface on the rear side from the top of the bonnet.
[0006]
In addition, a receiving box is arranged in the front and rear of the rear of the machine base, and the pebbles and pebbles dropped from the small ball removal roller are introduced and guided to the front receiving box at the rear downward inclined surface from the top of the bonnet. What is removed by the sorting operator in the process of being sent back to the receiving box by the sorting conveyor is stored.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a left side view of the whole onion harvester, FIG. 2 is a right side view thereof, FIG. 3 is a front view thereof, FIG. 4 is a rear view thereof, and FIG. 5 is a plan view thereof. (3) is an engine part provided in the front half of the machine base (1), (4) is a control part provided side by side on the left or right outside of the engine part (3), (5) is a lifting conveyor provided on the front side of the machine base (1), (6) is a scraping portion provided on the lower front side of the lifting conveyor (5), and (7) is provided on the front side of the scraping portion (6). (8) is the left and right gauge wheels provided on the front side of the left and right weed plates (9) of the digging section (7), (10) is the upper end of the lifting conveyor (5) and the engine below it The foliage separation part provided between the bonnet (11) of the part (3), (12) is a fork-type cargo bed provided on the rear side of the machine base (1), and (13) is a harvest mounted on the cargo bed (12). A container for accumulation, (14) is a storage part provided in the latter half of the machine base (1), and (15) is passed from above the foliage separation part (10) to above the storage part (14), and is stored in the container (13 The sorting section extending to the section) and (16) are the left and right steps for the sorting operator that are stretched below the left and right outer sides of the sorting section (15).
[0008]
1 to 5 and FIGS. 6 to 29, the machine base (1) includes a left and right vertical frame (17) parallel to the front-rear direction and an upper surface of the left and right vertical frames (17). And a plurality of horizontal frames (18) fixed horizontally in parallel in the left-right direction.
[0009]
The engine (20) provided in the engine part (3) is mounted in the substantially central part of the front part of the machine base (1), and the mission (21) provided in the same part (3) is provided in the machine side (front side of the engine (20) ( 1) is mounted at a substantially central portion of the front end portion, and further, a working speed change case (24) and a fuel (not shown) are provided on one side of the engine (20) opposite to the control portion (4) in the same portion (3). A tank, a tank for lubrication (lubricating oil), a pump, a hydraulic valve unit, and the like are disposed, and a radiator or the like (not shown) is disposed on one side of the engine (20) on the control unit (4) side. By placing heavy objects such as the engine (20) and the mission (21) in the center of the machine base (1), the right and left balance of the machine body is improved, and the heavy objects on the rear side of the machine base (1), that is, By placing heavy objects such as the engine (20) and the mission (21) in the front part of the machine base (1) opposite to the container (13) packed with onions, the front-rear balance of the machine body is also improved. The mission (21) has a straight traveling HST (22) and a turning HST (23) in the input part, and is provided on the output shaft (20a) of the engine (20) that protrudes on the opposite side to the control part (4). The hydraulic pump input shaft of (22) is interlocked and connected by belt transmission, and the hydraulic pump input shaft of the turning HST (23) is interlocked and connected by axial transmission to the hydraulic pump input shaft of the linear advance HST (22) The hydraulic motors of the HST (22) and the turning HST (23) are appropriately driven to transmit power to the mission (21), and the output shaft (20a) of the engine (20) is connected to the input shaft of the transmission case (24). (24a) is linked and linked by belt transmission.
[0010]
The bonnet (11) of the engine part (3) is formed in a mountain shape in a side view, and the front downward inclined surface (11b) from the top (11a) of the bonnet (11) extends to the upper front end of the machine base (1). The front wall surface (11c) extends vertically from the tip of the inclined surface (11b) to the machine base (1), and the rear downward inclined surface on the rear side from the top (11a) of the bonnet (11) ( 11d) extends to the upper part of the front end of the storage part (14), the rear wall surface (11e) extends vertically from the tip of the inclined surface (11d) to the storage part (14), and the engine part (3) The upper surface, front surface and rear surface are continuously covered. The bonnet (11) is fastened and supported by the left and right guard frames (25) that are erected and fixed from the machine base (1) to the left and right sides of the engine part (3). The side surface of the engine portion (3) opposite to the control portion (4) is covered with a side cover (26) that is detachably attached to the outside of the guard frame (25) on that side, while the engine on the control portion (4) side is covered. The side surface of the part (3) is covered with a side column (27) provided in the control part (4), and the side column (27) is also used as a side cover on one side of the engine part (3).
[0011]
The control section (4) is a step plate (28) that stretches the base (1) at the bottom of the engine section (3) above the extension section (1a) that extends to the left or right outside of the engine section (3). ), A handle column (30) provided with a round steering handle (29) on the upper surface standing upright substantially at the center of the front portion of the step plate (28), and an engine portion on the inner side of the step plate (28) (3) The side column (27) provided with the main speed change lever (31), the sub speed change lever (32), the work clutch lever (33), etc. on the upper surface standing upright beside the side column (27) and the side column (27) A driving seat (34) provided on the rear side of the handle column (30), a protector (35) standing upside down on the outer rear part of the control unit (4) and the like. Further, a step (36) for getting on and off the operator is provided between the extension part (1a) of the machine base (1) and the step plate (28) outside the front part of the control part (4). A front cover (37) is provided on the front side between the extension part (1a) of the machine base (1) and the step plate (28), and the front cover (37) illuminates the front of the control part (4). A lamp (38) is provided, and a rearview mirror (39) for confirming the rear of the airframe on the side of the control unit (4) is attached to the handle column (30). The protector (35) is hollow, the outer surface above the step plate (28) is meshed, and the inner surface between the step plate (28) and the extension (1a) of the machine base (1) is opened. The outside air is sucked into an outside air introduction duct provided with an air cleaner (not shown) between the step plate (28) and the extending portion (1a) of the machine base (1). A battery (not shown) is also accommodated between the step plate (28) and the extension (1a) of the machine base (1).
[0012]
A bowl-shaped sorting table (40) is erected and fixed in the latter half of the machine base (1) between the engine section (3) and the loading platform (12), and the sorting section (15) is located above the sorting table (40). The storage part (14) is provided inside the lower part of the sorting table (40), and the left and right steps (16) for the sorting operator are extended and supported from the middle part of the sorting table (40) to the left and right sides. ing.
[0013]
The storage part (14) has the same shape receiving box (41) (42) with the upper surface opened between the left and right leg parts (40a) on the front side and the left and right leg parts (40b) on the rear side of the sorting table (40). It is arranged side by side. The front and rear receiving boxes (41) and (42) have substantially the same width as the container (13), and the left and right outer portions protrude outward from the machine base (1). A partition wall (43) is provided in the left and right central portions of the front and rear receiving boxes (41) and (42), and four receiving boxes (41a) (41b) (42a) (42b) are formed in the storage section (14). The bottom surfaces (44a) (45a) of the front and rear receiving boxes (41a) and (42a) and the bottom surfaces (44b) and (45b) of the right front and rear receiving boxes (41b) and (42b) are formed on an inclined surface having a lower outer side. Cover plates (46a), (47a), and (46b) that are shutters on the outer wall surfaces of the left and right front and rear receiving boxes (41a) and (42a) and the right and left front and rear receiving boxes (41b) and (42b) opposite to (43). The front and rear receiving boxes (41) and (42) are formed in a symmetrical hopper structure. As a result, the storage material can be easily discharged from the receiving boxes (41a) (41b) (42a) (42b) simply by opening the cover plates (46a) (46b) (47a) (47b). .
[0014]
The left and right steps (16) for the sorting operator include the upper surfaces of the left and right front and rear receiving boxes (41a) and (42a) projecting outside the sorting table (40) and the right and left front and rear receiving boxes (41b) and (42b). It is supported on the upper surface of the outer part, and is stretched between the engine part (3) and the loading platform (12) at substantially the same height as the step plate (28) of the control part (4). As a result, when the sorting operator gets on and off the step (16) on the side of the control unit (4) via the control unit (4), the transfer between the control unit (4) and the step (16) is safe. It can be done. A steel pipe cutter (48) is detachably installed on the outer side of the left and right steps (16) to prevent the sorting operator from dropping accidentally from the step (16) (48). The handle (48) is used as a handle and a backrest during work. The lateral width of the left and right steps (16) for the sorting operator is formed such that the outer ends of the left and right steps (16) protrude slightly outward from the container (13), and further outside the left and right steps (16). In addition, left and right auxiliary steps (16a) are provided in series. The left and right auxiliary steps (16a) are formed longer than the main step (16), and the front end of the auxiliary step (16a) is aligned with the front end of the main step (16). The rear part protrudes rearward from the rear end part of the main step (16), and the rear part of the auxiliary step (16a) extends to the left and right outer sides of the container (13). When standing on the rear of the main step (16) by moving to the rear of the auxiliary step (16a), such as when the sorting worker leveles the onion loaded in the container (13). Can reach the back side and the back side of the container (13) that cannot be reached, and can pack the onion container (13) in a well-balanced manner. A boarding / unloading step (16b) having a ladder (49) for boarding / exiting to the step (16) is continuously provided on the front end side of the step (16) opposite to the control unit (4). The boarding / alighting step (16b) extends from the front end side of the step (16) to the outside of the engine part (3), and the boarding / alighting ladder (49) extends downward from the outside part. The boarding / alighting ladder (49) is connected to the boarding / alighting step (16b) so that it can be inverted and stored on the upper side of the boarding / alighting step (16b). The boarding / alighting step (16b) The step (16) is integrally connected to the front portion of the step (16) so as to be foldable and retractable. By storing the boarding / alighting step (16b) in the front part of the step (16), the boarding / alighting step (16b) can be moved from the front side of the step (16) opposite to the control part (4). It is designed to prevent accidental fall of sorting workers. Moreover, by using the step (16b) for getting on and off, the upper part of the engine part (3) which cannot be seen from the ground and cannot be reached and the foliage separation part (10) above and the lifting conveyor (5) above it. Maintenance inspection and cleaning of the upper part and the like can be performed not only from the control unit (4) side but also from the opposite side.
[0015]
Each cover plate (46a) (46b) (47a) (47b) of the storage section (14) is pivotally supported at its lower end side to the fulcrum shaft (50), and each cover plate (46a) (46b) (47a). ) (47b) by inserting the locking lever (51) provided at the upper part on the outer surface side into the locking piece (52) provided on the step (16) side from below, so that each cover plate (46a) (46b) ( The lid plates (46a) (46b) (47a) (47b) are held by holding the 47a) (47b) in a closed state and pulling the locking lever (51) down by hand and pulling it out from the locking piece (52). Can be opened. The locking lever (51) is always elastically biased upward by a coil spring (53) so as to maintain the engaged state with the locking piece (52). Each bottom box (44a) (44b) (45a) (45b) and each cover plate (46a) (46b) (47a) (47a) of each receiving box (41a) (41b) (42a) (42b) of a storage part (14) ( 47b) and steps (16), (16a), (16b) and the like form a frame with a frame and form a surface with a wire mesh, thereby preventing mud from adhering and accumulating, and facilitating cleaning, and step (16). In (16a) and (16b), a non-slip effect is also obtained, which contributes to an improvement in safety. The left and right auxiliary steps (16a) are connected to the main step (16) so as to be foldable and retractable by a plurality of hinges (54) in the same manner as the boarding / alighting step (16b). By storing the auxiliary step (16a) in the folded state, the lateral width of the aircraft is reduced, and the storage space of the aircraft is reduced as much as possible.
[0016]
The upper ends of the left and right conveyor side plates (55) of the lifting conveyor (5) are arranged on the upper inner surface side of the left and right support frames (56) that are erected and fixed on the left and right guard frames (25) of the engine unit (3). The left and right oscillating arms (58) that rotatably support the rear end of the machine base (1) are provided in addition to the left and right fulcrum shafts (57). Of the swing arm (58) is connected to the lower outer surface side of the left and right conveyor side plates (55) so as to be rotatable, and the horizontal connection frame (59) integrally connecting the left and right swing arms (58). ) And a machine base (1), a hydraulic cylinder (60) is stretched to support the lifting conveyor (5) on the front side of the machine base (1) so as to be movable up and down. The lifting conveyor (5) moves up and down around the fulcrum shaft (57) by expanding and contracting the hydraulic cylinder (60). A drive shaft (61) is horizontally mounted on the upper ends of the left and right conveyor side plates (55) on the same axis as the left and right fulcrum shafts (57), and is driven by the lower ends of the left and right conveyor side plates (55). A shaft (62) is rotatably mounted horizontally, and left and right drive sprockets (63) are arranged between the upper end drive shaft (61) and the lower end drive shaft (62) on the inner surface side of the left and right conveyor side plates (55). ) And left and right driven sprockets (64), and left and right endless conveyor chains (65) are stretched, and a large number of shelves (66) on which onions are placed are horizontally spaced between the left and right conveyor chains (65). The lifting conveyor (5) constitutes a lifting conveyor (5), and the lifting conveyor (5) has a lower part on the front side of the lifting conveyor (5) that carries the onion transported from the scraping section (6) provided on the lower front side thereof. To the shelf (66) moving in turn one after another, and moving up the shelf (66) Therefore, when the shelf (66) is moved upward from the carrying side to the non-conveying side at the upper turning part of the lifting conveyor (5), the onion is discharged from the shelf (66) and moved downward. It is made to fall on the foliage separation part (10). The shelf (66) is parallel to the left and right L-shaped end pieces (67) fixed to the left and right conveyor chains (65) and between the corresponding ends and bent portions of the left and right L-shaped end pieces (67). It consists of three horizontal bars (68) to be laid, and the surface of each horizontal bar (68) is coated with rubber to prevent the onion from being damaged.
[0017]
The scraping section (6) has left and right scratching side plates (69), a postfeed conveyor (70), and a scraping conveyor (71). 70) is provided in a back-up and inclined state, and then the scraping conveyor (71) is provided in a back-up and inclined state so as to face the upper side of the feeding conveyor (70). The left and right ends of the drive shaft (72) of the feed conveyor (70), which is rotatably mounted on the rear of the left and right scraping side plates (69), are connected to the left and right conveyor side plates (55) of the lifting conveyor (5). ) Is rotatably supported by left and right protrusions (55a) provided by projecting the lower end of the front end to the front side, so that the rear part of the left and right scraping side plates (69) can be rotated to the left and right protrusions (55a). It is linked to. Left and right drive between the drive shaft (72) that also serves as the pivot point of the scraping portion (6) and the driven shaft (73) that lies horizontally on the front lower end of the left and right scraping side plates (69) The left and right endless conveyor chains (76) are stretched inside the left and right scraping side plates (69) via the sprocket (74) and the left and right driven sprockets (75), and a large number of reeds (77) are attached. A post-feed conveyor (70) is configured by being horizontally spaced between the left and right conveyor chains (76). The post-conveying conveyor (70) is stretched rearward and in an inclined state immediately above the digging blade (78) of the digging part (7) and above the lower revolving part of the lifting conveyor (5). The onion which is excavated from the field by the digging blade (78) of 7) and scraped onto the post-feed conveyor (70) by the rake conveyor (71) is conveyed rearward and upward by the post-feed conveyor (70). From the rear end of the feed conveyor (70), it is dropped from above onto a shelf (66) that circulates one after another to the lower end on the front side of the lifting conveyor (5). As a result, the onion can be smoothly transferred from the post-feed conveyor (70) to the shelf (66) of the lifting conveyor (5), and the stagnation and clogging of the onion at the transfer portion is prevented, thereby preventing damage. ing.
[0018]
The scraping conveyor (71) has left and right endless conveyor chains (83) between a drive shaft (79) and a driven shaft (80) via left and right drive sprockets (81) and left and right driven sprockets (82). ) Is stretched inside the left and right side plates (69), and a rubber plate (84) that does not damage the onion is horizontally placed between the left and right conveyor chains (83) at equal intervals. Configured. The drive shaft (79) of the scraping conveyor (71) is horizontally supported on the front upper part of the left and right scratch side plates (69), while the driven shaft (80) of the scraping conveyor (71) is the driving shaft (79). Are connected by left and right chain rails (not shown) of the left and right conveyor chains (83) to maintain the distance between the two parallel shafts (80) and (79) and to the front side of the left and right scraping side plates (69). The conveyor belt (71) is attached to an intermediate portion of the left and right support frames (85) that integrally extend forward from the left and right scratch side plates (69) and support the left and right gauge wheels (8) at the front end. Left and right support portions (86) for supporting the front portion are provided, and the left and right end portions of the left and right bearing arms (87) for rotatably supporting the left and right end portions of the driven shaft (80) on one end side are provided on the left and right support portions. (86) is slidably penetrated, and the split pin (88), the spring seat (89), and the coil spring 90) elastically prevents the left and right bearing arms (87) from being pulled out, supports the take-up conveyor (71) around the rear drive shaft (79), lifts the front part, and makes multiple adjustments. The insertion height of the split pin (88) is adjusted by the hole (91) to adjust the support height of the front portion of the scraping conveyor (71). At the normal digging depth or below, the scraping conveyor (71) is slightly wrapped or parallel contacted with the straight running part of the tip locus (84a) of the scraping plate (84) on the transport side of the post-feed conveyor (70). In this way, it is supported in a substantially parallel state or in a parallel state with the post-feed conveyor (70), and as the digging depth becomes deeper, the straight running portion of the tip locus (84a) of the scratching plate (84) is post-feed. The support height of the front portion of the pick-up conveyor (71) is appropriately increased so as to be away from the conveying side of the conveyor (70) (the back-up slope of the pick-up conveyor (71) is loosened). During the operation, the take-up conveyor (71) moves up and down following the unevenness of the field surface and the magnitude of the take-up load. In addition, notch grooves (92) are provided in the height direction from the tip of each scoring plate (84), the notch grooves (92) are provided at equal intervals in the width direction, and the scoring plate (84) is comb-like. It is designed to reduce soil entrapment. The rake conveyor (71) starts rake by the rake plate (84) almost simultaneously or simultaneously with the digging of the onion by the digging blade (78), and sequentially rakes the onion onto the post-feed conveyor (70). While the onion scraped into the post-conveying conveyor (70) is prevented from rolling forward on this inclined surface, the post-conveying conveyor (70) can convey the onion backward and upward.
[0019]
The digging portion (7) has left and right weed boards (9) and a wide digging blade (78). The digging blade (78) is horizontally fixed at the lower ends of the rear end portions of the left and right weed plates (9). The left and right weed plates (9) are connected to the lower front portions of the left and right scratching side plates (69) of the scraping portion (6) with the rear ends connected from the lower front portion of the scratching side plate (69) to the front side. The digging blade (78) is horizontally supported immediately before the post-feed conveyor (70). The digging part (7) separates the onion that is dug up by the left and right weed boards (9) and the onion that is not dug up, and digs the onion between the left and right weed boards (9) with the digging blade (78). I try to raise it. The front ends of the left and right weed boards (9) are rounded to prevent the onion from being scratched. Rounding can be performed by attaching a metal rod (93) having a circular cross section to the front ends of the left and right weed plates (9) and bending the front end of the weed plates (9). When another member is attached to the front ends of the left and right weed boards (9) and rounded, the material is preferably an elastic material such as rubber. The digging blade (78) has its cutting edge placed on the extended line of the conveyance surface of the post-feed conveyor (70), so that the digging of the onion can be smoothly scraped onto the post-feed conveyor (70). Yes. The digging blade (78) may be provided so as to be inclined upward so that the entire digging blade (78) is placed on the extended line of the conveyance surface of the post-feed conveyor (70).
[0020]
The left and right gauge rings (8) are attached to the front end portions of the left and right support frames (85) integrally extending forward from the left and right scratch side plates (69) of the scraping portion (6). The gauge wheel (8) is rotatably supported on the wheel bearing (95) via the wheel shaft (94), and a vertical cage shaft (96) is provided on the upper surface of the wheel bearing (95). The bearing (97) fixed to the front end of the left and right support frames (85) is slidably fitted in the vertical direction, and the bearing (97) and the cage shaft (96) are fixed with pins passing through them. Yes. The insertion position of the pin is adjusted by a plurality of adjustment holes provided in the gauge shaft (96) to adjust the ground height of the digging portion (7) and the scraping portion (6). The gauge wheel (8) can turn around the cage shaft (96) and can change its orientation. In addition, a rubber skirt (98) that covers the left and right sides of the bare gauge wheel (8) from the front of the wheel bearing (95) to the ground is provided, and the unrolled onion is attached to the gauge wheel (8). It is designed to prevent it from being stepped on. The front end portions of the left and right support frames (85) are connected by a lateral connection frame (99) so as to increase the support rigidity of the gauge wheel (8), the excavation portion (7), and the scraping portion (6).
[0021]
The left and right gauge rings (8), the excavation part (7) and the scraping part (6) are integrally formed on the lower front side of the lifting conveyor (5) around the drive shaft (72) of the post-feed conveyor (70). It is pivotably supported. A conveyor side plate (55) on one side of the lifting conveyor (5) and a scraping side plate (69) on one side of the same side of the lifting conveyor (5) are connected to the side plates (55) (69) by a hydraulic cylinder (100). Connected on the outer surface side, the left and right gauge rings (8), the excavation part (7) and the scraping part (6) are centered on the fulcrum shaft (57) by the expansion and contraction of the hydraulic cylinder (60) together with the lifting conveyor (5) The left and right gauge wheels (8), the digging part (7), and the scraping part (6) are moved only up and down while the hydraulic cylinder (100) is expanded and contracted, and the drive shaft (72) of the post conveyor (70). It is trying to go up and down around.
[0022]
One end of the driven shaft (62) of the lifting conveyor (5) and one end of the drive shaft (72) of the post conveyor (70) on that side are connected to the conveyor side plate (55) on one side of the lifting conveyor (5). Are connected to each other via an output sprocket (101), an input sprocket (102), a tension roller (103) and a transmission chain (104) to rotate the lifting conveyor (5). The post conveyor (70) is driven in the same direction as the lifting conveyor (5). The other end of the drive shaft (72) of the post-conveyor (70) and one end of the drive shaft (79) of the drive conveyor (71) on that side are connected to the drive side plate ( 69) on the outer surface side of the output sprocket (105), the input sprocket (106), and the two outer hanging rollers (107) that also serve as tension rollers and the transmission chain (108), and the transfer conveyor (70 ) Is transmitted to the pick-up conveyor (71), and the pick-up conveyor (71) is driven in the opposite direction to the post-feed conveyor (70).
[0023]
The chain cover (109) of the transmission chain (104) that transmits the rotation of the lifting conveyor (5) to the post conveyor (70) is provided on the conveyor side plate (55) on one side of the lifting conveyor (5), and the opposite side The chain cover (110) of the transmission chain (108) that transmits the rotation of the post conveyor (70) to the scraper conveyor (71) is placed on the scratch side plate (69) on one side of the scraper section (6). The hydraulic cylinder (100) that is provided and moves up and down the left and right gauge wheels (8) and the excavation part (7) and the scraping part (6) transmits the rotation of the lifting conveyor (5) to the post conveyor (70). On the side where the chain cover (109) of the transmission chain (104) is located, there is a conveyor side plate (55) on one side of the lifting conveyor (5) and a scraping side plate (69) on one side of the scraping portion (6). It is stretched between them.
[0024]
Left and right guide plates (111) made of rubber plates that do not damage the onion are provided on the left and right sides of the transfer portion from the post-feed conveyor (70) to the lifting conveyor (5). The left and right guide plates (111) are located on the rear upper side of the post-feed conveyor (70), and the left and right conveyor side plates of the lifting conveyor (5) from the rear inner surface side of the left and right scratch side plates (69) of the scraping portion (6). It extends to the inner surface side of the protruding portion (55a) of (55). The left and right guide plates (111) are attached to the left and right scratch side plates (69) of the scraping portion (6) together with the correction substrate (112), and thereafter the rear portion is folded slightly inward by the correction substrate (112). In the bent state, it extends to the inner surface side of the protrusions (55a) of the left and right conveyor side plates (55) of the lifting conveyor (5), and from the post conveyor (70) to the shelf (66) of the lifting conveyor (5). The onion is transferred and inherited within the width. As a result, the onion can be reliably dropped from the rear end of the post conveyor (70) to the shelf (66) of the lifting conveyor (5), and is located on the left and right outer sides of the shelf (66) of the lifting conveyor (5). To reduce the adhesion of soil to the left and right conveyor chains (65), the drive sprocket (63), the drive shaft (61), the driven sprocket (64) and the driven shaft (62), and to improve the durability of these It has become. The left and right guide plates (111) are cut between the left and right scratching side plates (69) of the scraping portion (6) and the protruding portions (55a) of the left and right conveyor side plates (55) of the lifting conveyor (5). And prevents spilling of onions from the cuts.
[0025]
The foliage separation part (10) has left and right conveyor side plates (113) and a foliage separation conveyor (114), and the foliage separation conveyor (114) is a lifting conveyor (5) between the left and right support frames (56). Between the upper end portion of the engine and the hood (11) of the engine portion (3) below the upper end portion. The foliage separation conveyor (114) has its front end facing above the front lower inclined surface (11b) from the top (11a) of the bonnet (11), and the rear is rearward from the top (11a) of the bonnet (11). It is arrange | positioned above the back-falling inclined surface (11d). The foliage separation conveyor (114) includes a drive roller (116) that is horizontally mounted on the rear end portions of the left and right conveyor side plates (113) via a roller shaft (115), and a roller shaft ( 117, and a wide endless conveyor belt (119) made of rubber that does not damage the onion between the roller (118) and the driven roller (118) that is placed horizontally through 117). The foliage separation conveyor (114) is provided in a downwardly inclined manner, whereas the conveying direction is forward, and the foliage separation conveyor (114) is provided with onions dropped from the rear end of the lifting conveyor (5) provided above it. By catching on the conveying side, the onion rolls and falls on the inclined surface at the lower end of the foliage separation conveyor (114) and enters the rear sorting section (15), while the inclined at the lower end of the foliage separation conveyor (114). The foliage remaining on the surface is conveyed to the front side, discharged from the front end of the foliage separation conveyor (114), dropped onto the front downward inclined surface (11b) from the top (11a) of the bonnet (11), and the onion and foliage Try to separate. The foliage that has fallen on the front downward inclined surface (11b) from the top (11a) of the bonnet (11) slides down on the front downward inclined surface (11b), and the machine stand (1 ) To the field from the front side. As a result, the foliage separated in the process of transporting the onion to the container (13) can be discharged to the field without accumulating on the airframe, and it is possible to prevent malfunctions and failures of the machinery and equipment due to the accumulated foliage, and Maintenance, inspection and cleaning can be performed easily. The bonnet (11) serves as a foliage discharge chute, eliminating the need for a special foliage discharge chute, contributing to cost reduction.
[0026]
The surface of the conveyor belt (119) of the foliage separation conveyor (114) is provided with protrusions (120) that are small and small in parallel to the width direction (those that do not affect the rolling and falling of the onion) at regular intervals. In addition to preventing sliding down the inclined surface after the separation conveyor (114), fine soil and stones are also discharged together with the foliage to improve foliage separation performance. In addition, the left and right ends of the roller shaft (115) of the drive roller (116) of the foliage separation conveyor (114) can be freely rotated by the left and right support frames (56) standing on the outside of the left and right conveyor side plates (113). Left and right operation arms (122) provided on the base end of the operation lever (121) provided on the outer surface side of the support frame (56) on the control unit (4) side and on the inner surface side of the left and right support frames (56). ) To the left and right support frames (56) via a support shaft (123) that is rotatably mounted horizontally, and the distal ends of the left and right operation arms (122) are connected to the long holes (124) and It is connected to the left and right conveyor side plates (113) via a connecting pin (125), and the foliage separation conveyor (114) is supported on the left and right support frames (56) so that the downward inclination angle of the foliage separation conveyor (114) can be adjusted. You It is way. When the operating lever (121) is operated in the front-rear direction, the operation arm (122) swings up and down in conjunction with the operation of the operating lever (121). A locking member provided on the outer surface of the support frame (56) on the side of the steering unit (4), the front part of (114) being changed by moving up and down with the roller shaft (115) of the driving roller (116) at the rear as a fulcrum By fixing the operating lever (121) to (126), the foliage separation conveyor (114) is held at a predetermined rearward-declining angle. The locking member (126) has fixed pieces (126a) and (126b) for holding the foliage separation conveyor (114) at a steep slope and a gentle slope, and the rearward inclination angle of the foliage separation conveyor (114) is switched in multiple stages. Although what is adjusted is shown, a structure in which switching is adjusted steplessly may be employed. By adjusting the inclination angle of the back and forth of the foliage separation conveyor (114), the foliage slides down the inclined surface of the foliage separation conveyor (114) and conversely, the onion is discharged from the front end of the foliage separation conveyor (114). It is made to prevent that and the foliage separation performance is further improved.
[0027]
The left and right V belts (127) are attached to the inner surfaces of the left and right side portions of the conveyor belt (119) of the foliage separation conveyor (114), and the left and right V grooves (128) around which the left and right V belts (127) are wound are driven rollers. (116) and the driven roller (118) to prevent meandering of the wide conveyor belt (119).
[0028]
An idle shaft (129) is rotatably provided at a lower portion of the support frame (56) on the side opposite to the control unit (4), and one side of the engine (20) on the engine unit (3) opposite to the control unit (4). The PTO shaft (130) and the idle shaft (129), which are the output shafts of the work speed change case (24) provided on the side, on the inner surface side of the support frame (56) opposite to the control section (4), An output pulley (131), an input pulley (132), a transmission belt (133), and a work clutch (134) that is a tension roller are connected to each other in a freely interlocking manner, and one end of an idle shaft (129) is connected to a lifting conveyor ( 5) is connected to one end of the drive shaft (61) on the outer surface side of the support frame (56) opposite to the control section (4), and the output sprocket (135), the input sprocket (136), and two idle rollers ( 13 ) And a tension roller (138) and a transmission chain (139), and the lifting conveyor (5) is driven by the power of the engine (20) and linked to the lifting conveyor (5). The feed conveyor (70) and the rake conveyor (71) are driven. One end of the idle shaft (129) and one end of the roller shaft (115) of the drive roller (116) of the foliage separation conveyor (114) are arranged on the outer surface side of the support frame (56) opposite to the control unit (4). The output sprocket (140), the input sprocket (141), the two idle rollers (142) for external hooking, the tension roller (143), and the transmission chain (144) are linked and connected to each other by the power of the engine (20). The foliage separation conveyor (114) is driven in the opposite direction to the lifting conveyor (5).
[0029]
A clutch operating arm (146) that connects a clutch spring (145) that constantly biases the working clutch (134) in the entering direction is connected to a working clutch lever (33) provided on the side column (27) of the control section (4). An operation wire (148) for connecting one end side to the other end side of the operation wire (147) for connecting one end side and a lower portion of the conveyor side plate (55) on the opposite side to the control section (4) of the lifting conveyor (5). The other end of the clutch is connected, and the work clutch (134) is turned on and off by the work clutch lever (33), and when the lifting conveyor (5) is lifted to the highest position, it automatically works for safety. The clutch (134) is turned off, and the lifting conveyor (5), the post-feed conveyor (70), the rake conveyor (71), and the foliage separation conveyor (114) are stopped. This improves safety, reduces the labor of the operator, reduces the load on the engine (20) during turning, prevents misalignment of the onion during transportation, and the like.
[0030]
The sorting unit (15) includes a left and right sorting frame (149), a small ball removal conveyor (150), a sorting conveyor (151), a hydraulic motor (152) as a driving source of these conveyors (151) and (150), and a left and right discharge chute. (153), and the ball-removing conveyor (150) on the rear side of the foliage separation conveyor (114), the rear downward inclined surface on the rear side from the top (11a) of the bonnet (11) of the engine part (3) ( 11d) is provided in a rear-upward inclined state, and the sorting conveyor (151) is extended from the rear side of the small ball removal conveyor (150) to the container (13) portion through the top portion (14). The left and right discharge chutes (153) are provided outside the front of the sorting conveyor (151).
[0031]
The small ball removal conveyor (150) has a plurality of small ball removal rollers (154) made of synthetic resin that do not damage the onion between the front foliage separation conveyor (114) and the rear separation conveyor (151) in the front-rear direction. In parallel with each other, the small ball removal rollers (154) can be freely rotated to the left and right sorting frames (149) via the roller shaft (155) so that the support height of the rear small ball removal rollers (154) becomes lower. It is configured horizontally. The small ball removal roller (154) is provided with a thin disk-shaped large diameter roller portion (154b) at equal intervals on a small diameter roller portion (154a) fitted and fixed to the roller shaft (155). 154) large-diameter roller portions (154b) are arranged in series in the front-rear direction without a gap, and a gap of a predetermined size is provided between the small-diameter roller portions (154a) of the small ball removal rollers (154) arranged in series in the front-rear direction. Forming.
[0032]
Immediately after the last ball removal roller (154) of the ball removal conveyor (150), the drive shaft (156) laid across the front of the left and right sorting frames (149), and the rear of the left and right sorting frames (149) The left and right endless conveyor chains (160) are sorted between the left and right driven sprockets (158) and the left and right driven sprockets (159) between the driven shaft (157) horizontally mounted on the end. In addition to stretching inside the frame (149), a large number of horizontal conveyor rollers (161) are installed at equal intervals between the left and right conveyor chains (160) via the roller shafts (162). , Constituting a sorting conveyor (151). Left and right disc-shaped turning guides (163) are provided on the drive shaft (156) and driven shaft (157) of the sorting conveyor (151) to slide the conveyor rollers (161) during turning. Each conveyor roller (161) is smoothly rotated from the conveying side to the non-conveying side and vice versa. Left and right rails (164) are provided to bring the left and right sides of the conveyor roller (161) of the sorting conveyor (151) into rolling contact from the front end to the rear end of the straight portion on the transport side, and left and right sorting frames (149 ) Are connected to the left and right rails (164), and the left and right rails (164) are left and right between the conveying surface and the non-conveying surface of the sorting conveyor (151). It is fixedly supported inside the conveyor chain (160). The contact surface of the left and right rails (164) with the conveyor roller (161) is covered with a rubber cover (164a), and the friction between the contact surfaces of the left and right rails (164) and the conveyor roller (161) is increased. The roller (161) is prevented from slipping. Left and right extending portions (149a) extending at right angles from the lower ends of the left and right sorting frames (149) are provided, directly below the left and right sides of the conveyor rollers (161) on the non-conveying side of the sorting conveyor (151). The left and right extending portions (149a) are extended, and the left and right side portions of the conveyor roller (161) on the non-conveying side of the sorting conveyor (151) are supported from the lower side by the left and right extending portions (149a). 151) prevents the non-conveying side surface from drooping. The left and right extending portions (149a) prevent the non-conveying side of the sorting conveyor (151) from hanging down while increasing the rigidity of the left and right sorting frames (149).
[0033]
A hydraulic motor (152) is attached via a motor base (166) to the front outer surface side of the sorting frame (149) on the side opposite to the control unit (4), and the output shaft (152a) of the hydraulic motor (152) and the sorting conveyor The drive shaft (156) of (151) is connected to the outer surface side of the sorting frame (149) opposite to the control unit (4) via the output sprocket (167), the input sprocket (168) and the transmission chain (169). The two roller shafts (155) of the adjacent ball removal rollers (154) of the ball removal conveyor (150) are connected to each other on the outer surface side of the sorting frame (149) opposite to the control section (4). The transmission sprocket (170) and the transmission chain (171) are linked and linked, and the roller shafts (155) of all the small ball removal rollers (154) of the small ball removal conveyor (150) are linked and connected. The drive shaft (156) of the conveyor (151) and the roller shaft (155) of the small ball removal roller (154) at the rearmost portion of the small ball removal conveyor (150) are separated from the control unit (4) by the sorting frame (149). Are connected to each other through an output sprocket (172), an input sprocket (173), and a transmission chain (174), and a sorting conveyor (151) is driven by a power of a hydraulic motor (152) as a drive source provided exclusively. And all the ball removal rollers (154) of the ball removal conveyor (150) are driven in the same direction so as to feed the onion backward. A flow rate control valve is provided at the pump port of the hydraulic motor (152), and the opening speed of the flow rate control valve is adjusted with a control knob, so that the driving speed (reverse feed speed) of the sorting conveyor (151) and the ball removal conveyor (150) is adjusted. ) Is appropriately changed and adjusted according to the onion yield, the sorting ability of the sorting operator, and the like.
[0034]
The small ball removal conveyor (150) receives the onion rolling and falling from the foliage separation conveyor (114) provided on the front side thereof, and among the received onion, small balls and pebbles etc. that are smaller than the standard size are transferred to the small ball removal rollers (154). Are dropped from the gap between the small diameter roller portions (154a), and only the onion larger than the standard size that does not fall out from the gap is post-fed by the large diameter roller portion (154b) of each small ball removal roller (154), and the rear side It feeds to the sorting conveyor (151).
[0035]
The sorting conveyor (151) receives the onion larger than the standard size that has passed through the small ball removal conveyor (150) provided on the front side, and sequentially conveys it on the conveyor roller (161) moving backward while rotating. The sorting workers on board the left and right steps (16) during the transport process remove defective products such as scratched balls and spoiled balls from the standard size or larger onion. Only non-defective (non-standard product) onions are fed back to the rear end and dropped into the container (13) from the rear end.
[0036]
One scraper (175) is provided for each large-diameter roller portion (154b) of each small ball removal roller (154) of the small ball removal conveyor (150). The scraper (175) is a large-diameter roller that bends an iron plate into a U shape and rotatably fits a large-diameter roller portion (154b) at the center of the tip of the main piece (175b) between the left and right side pieces (175a). A notch groove (176) having substantially the same width as the portion (154b) is formed. The scraper (175) for one of the ball removal rollers (154) has a main piece (175b) of each scraper (175) provided on the same plane, and the notch groove (176) of each scraper (175) is the same. The scrapers (175) are integrally connected so as to be aligned at equal intervals in a horizontal row on one horizontal connection rod (177) penetrating the left and right side pieces (175a) of each scraper. It constitutes a scraper (175) county for one of the ball extraction rollers (154). Among the plurality of small ball removal rollers (154), the small ball removal rollers (154) other than the rearmost small ball removal roller (154) are attached to the scraper (175) with the horizontal connecting rods (177) of the scraper (175) group below each scraper (175). ) Are placed horizontally on the left and right sorting frames (149) with the main piece (175b) standing, and the large-diameter roller portions (154b) of the small ball removal rollers (154) are attached to the scrapers (175) of the scraper (175) group. When the large-diameter roller part (154b) rotates and passes through the notch groove (176) by being fitted into the notch groove (176) of the main piece (175b), the end surface of the large-diameter roller part (154b) and the left and right sides The main piece (175b) scrapes off the mud and debris adhering to the side surface of the main body (175b), and at the same time, scrapes the mud and debris adhering to the peripheral surface of the small diameter roller portion (154a), Kodama pulling low Due to the adhesion and deposition of mud on (154) and the wrapping accumulation of waste leaves, the gap between the small diameter roller portions (154a) of the small ball removal roller (154) is reduced or blocked, and the separation performance of small balls and pebbles is reduced. It is designed to prevent a decline. Among the plurality of small ball removal rollers (154), the rearmost small ball removal roller (154) has a scraper (175) and a horizontal connection rod (177) between the rear turning portion of the rear sorting conveyor (151). ) On the left and right sorting frames (149) in a state where the main piece (175b) of each scraper (175) is laid down, and the respective large-diameter roller portions (154b) of the small ball removal rollers (154) are disposed in the scraper (175) group. By fitting into the notch groove (176) of the main piece (175b) of each scraper (175), the same effect as the scraper (175) group of the small ball extraction roller (154) other than the last part is obtained, and the last The gap between the small ball removal roller (154) at the front and the revolving portion on the front side of the rear sorting conveyor (151) (the transfer portion between the small ball removal conveyor (150) and the sorting conveyor (151)) is scraped. (175) By filling the county and bridging with the main piece (175b) of each scraper (175), the onion is stagnated from the front small balllet conveyor (150) to the succeeding part of the rear sorting conveyor (151). It is designed to carry on and transfer smoothly without clogging. In addition, by using the scraper (175) group as a transfer guide between the balllet conveyor (150) and the sorting conveyor (151), a dedicated transfer guide becomes unnecessary, which contributes to cost reduction. A rubber plate (175c) is attached to the main piece (175b) of each scraper (175) in the last scraper (175) group so as not to damage the onion.
[0037]
Among a number of conveyor rollers (161) that form the conveying surface of the sorting conveyor (151), when a certain conveyor roller (161a) moves to the end of the straight running portion on the non-conveying side, the conveyor roller (161) immediately after that The pebbles and the like that accumulate on the inside of the front turning part without dropping out of the gap of the conveyor roller (161) on the transport side and without dropping the gap of the conveyor roller (161) on the non-transport side are periodically A clogging prevention mechanism (178) for discharging is provided. The clogging prevention mechanism (178) swings the left and right ends of the roller shaft (162) of a certain conveyor roller (161a) to the left and right ends of the roller shaft (162) of the immediately preceding conveyor roller (161). The left and right rails (164), which are upper guides, are supported by the link (179) so that the conveyor roller (161) can be pivoted and moved on the conveying side from the start end (conveyor front end) to the end (conveyor rear end) of the straight running portion. ), And on the non-conveying side, the left and right extension parts (149a) are supported by the left and right extension parts (149a) from the beginning (conveyor rear end) to the end (conveyor front end) of the straight running part. The non-conveying side where the conveyor roller (161a) supported by the moving link (179) so as to be able to rotate and change freely on the immediately preceding conveyor roller (161) has no left and right extending portions (149a) When moved to the end of the running section, the conveyor roller (161a) is pivoted to a state where it is suspended just below the immediately preceding conveyor roller (161), and the gap with the immediately following conveyor roller (161) is enlarged. ing. The number of the clogging prevention mechanism (178) provided in the sorting conveyor (151) can be appropriately selected as the number of conveyor rollers (161) that are rotatably supported by the left and right conveyor chains (160). When only one roller is provided, pebbles and the like are collected from the clearance between the conveyor rollers (161) on the conveyance side and accumulated inside the circulating section on the front side without dropping the clearance between the conveyor rollers (161) on the non-conveyance side. Is performed once per rotation of the sorting conveyor (151), and when it is provided at two equal intervals, it is performed once per half rotation of the sorting conveyor (151), and is selected when provided at three equal intervals. It is performed once per 1/3 rotation of the conveyor (151), and when it is provided at equal intervals of n, it is performed once per 1 m rotation of the sorting conveyor (151) (n = m). The clogging prevention mechanism (178) prevents the drive shaft (156) of the sorting conveyor (151), the left and right drive sprockets (158), and the left and right conveyor chains (160) from being significantly reduced in durability by biting of pebbles or the like. It is supposed to be. Pebbles etc. which extend the front end of the sorting conveyor (151) to the upper side of the receiving box (41) on the front side of the storage section (14) and are discharged downward from the front end of the sorting conveyor (151) by the clogging prevention mechanism (178) Is stored in the receiving box (41) on the front side of the storage section (14). Left and right sorting from before the end of the straight section on the non-conveying side of the sorting conveyor (151) (the front end of the conveyor) to the lower side of the rear end of the balllet conveyor (150) through the lower side of the front turning part The left and right bulging portions (180) that bulge the frame (149) downward are partially provided, and the left and right bulging portions (180) are provided with the left and right extending portions (149a) below the other portions. As a result, the conveyor roller (161a) supported by the left and right swing links (179) so as to be able to rotate and change freely on the immediately preceding conveyor roller (161) is moved from the front end of the non-transport side straight running portion to the front end of the front turning portion. Thus, it is possible to turn and change to a state of being suspended just below the immediately preceding conveyor roller (161). The hydraulic motor (152) is attached to the front outer surface side of the bulging portion (180) of the sorting frame (149) opposite to the control portion (4) via the motor base (166), and the small ball removal conveyor (150) and A hydraulic motor (152) is disposed at a position away from the sorting conveyor (151), and a transmission space from the hydraulic motor (152) to the small ball removal conveyor (150) and the sorting conveyor (151) is appropriately secured.
[0038]
Left and right edges (149b) extending inwardly from the upper ends of the left and right sorting frames (149) are provided, and the right and left side portions on the conveying surface side of the ball removal conveyor (150) and the conveying surface side of the sorting conveyor (151) are provided. The left and right sides are continuously covered from the left and right edge portions (149b) of the left and right sorting frames (149), and the left and right side portions on the conveying surface side of the balllet removing conveyor (150) and the conveying surface side of the sorting conveyor (151) Left and right side covers (181) made of rubber plates that close the gaps between the left and right sides of the paper and the upper ends of the left and right sorting frames (149) are provided. On the left and right sides of the small ball removal conveyor (150) and the left and right sides of the sorting conveyor (151) through the gap between the left and right sides of the conveyor (151) on the conveying surface side and the upper ends of the left and right sorting frames (149) , Waste leaves, dust, etc. The roller shaft (162) bearing portion of each small ball removal roller (154) of the small ball removal conveyor (150), the drive shaft (156) and the driven shaft (157) bearing portion of the sorting conveyor (151), While preventing the drive sprocket (158), the left and right driven sprockets (158) and the left and right conveyor chains (160) from being significantly deteriorated in durability, the hand of the sorting operator is placed on the left and right sides of the small ball conveyor (150). This prevents accidents such as accidental entanglement in the right and left rotating parts of the sorting conveyor (151) and improves safety. The ball on the left and right sides of the small ball conveyor (150) and the sorting conveyor (151) is prevented from hitting the left and right sorting frames (149) and being damaged.
[0039]
The digging blade (78) of the digging part (7), the rake conveyor (71) of the raked part (6), the feed conveyor (70), the lifting conveyor (5), and the foliage of the foliage separating part (10) The separation conveyor (114) and the bonnet (11) of the engine part (3) have a width substantially the same as the width of the front half of the machine base (1) at the bottom of the engine part (3). ) At the bottom of the machine base (1) having a narrower width than the front half of the machine base (1). The lateral width is substantially the same as that of the rear half of the machine base (1). ). Left and right guide plates (182) made of rubber plates that do not damage the onion are provided on the left and right sides of the inherited portion from the foliage separation conveyor (114) to the small ball removal conveyor (150). The left and right guide plates (182) are attached to the inner surface of the straightening substrate (183) extending upward from the left and right conveyor side plates (113) of the foliage separation conveyor (114), and the lifting conveyor (5) and foliage separation conveyor The front part is extended between the left and right sides of (114) (left and right sides of the transfer part from the lifting conveyor (5) to the foliage separation conveyor (114)), and the rear part is thereafter foliage separation conveyor by the correction substrate (183). (114) Folded inward to reduce the effective conveying width of the rear end portion of the foliage separation conveyor (114) to substantially the same width as the lateral width of the small ball removal conveyor (150), and the rear end portion of the small ball removal conveyor (150). ) To the left and right upper side of the stalk and leaf, and the onion is conveyed and inherited from the foliage separation conveyor (114) within the lateral width of the small ball removal conveyor (150) having a smaller lateral width. As a result, the onion is reliably inherited from the foliage separation conveyor (114) to the small ball extraction conveyor (150) having a smaller width.
[0040]
A conveyor cover (184) that covers the upper end of the lifting conveyor (5) is provided, and the conveyor cover (184) is stretched above the upper ends of the left and right conveyor side plates (55), and the shelf of the lifting conveyor (5) Made of a rubber plate that extends the rear end of the conveyor cover (184) immediately after the upper turning part of the tip locus (66a) of (66) and does not damage the onion from the rear end of the conveyor cover (184) The hanging curtain (185) is hung, the rear part of the upper revolving part of the tip locus (66a) of the shelf (66) of the lifting conveyor (5) is covered with the hanging curtain (185), and the lifting conveyor (5) The hanging curtain (185) prevents the onion discharged from the shelf (66) from flying backward by centrifugal force when the shelf (66) moves from the conveyance side to the non-conveyance side in the upper circulation part, Make sure to drop the onion on the lower foliage separation conveyor (114) To have. A slit is formed in the vertical direction at the tip of the hanging curtain (185), and the slits are provided at equal intervals in the width direction of the hanging curtain (185).
[0041]
A rubber plate hanging curtain (186) that does not damage the onion hanging from above is provided on the inherited portion from the foliage separation conveyor (114) to the small ball removal conveyor (150), and the left and right end portions are supported on the left and right support frames (56). A frame frame that is fixed to the upper inner surface side of the upper conveyor (5) and extends horizontally to the rear side of the trailing curtain (185) at the rear side of the upper trajectory of the shelf (66) of the shelf (66) of the lifting conveyor (5) ( 187) is fixed to the upper end of the hanging curtain (186), and the hanging curtain (186) is suspended from the frame frame (187) to the rear end of the foliage separating conveyor (114) or the front end of the balllet removing conveyor (150) or between them. When the onion rolls down and falls on the inclined surface after the foliage separation conveyor (114) and enters the small ball removal conveyor (150), it is applied to the hanging curtain (186) to decelerate and level the small ball removal conveyor (150). Pass through The onion is delivered from the foliage separation conveyor (114) to the small ball removal conveyor (150) at an appropriate speed and appropriate layer thickness so that the small balls and pebbles are surely leaked on the small ball removal conveyor (150). Yes. A slit is provided in the vertical direction at the tip of the hanging curtain (186), and the slits are provided at equal intervals in the width direction of the hanging curtain (186).
[0042]
From the lower part of the lifting conveyor (5) on the front side of the machine base (1), the excavation part (7) and the light for digging work (188) that illuminates the field in front of the excavation part (7), and the rear upper sorting of the machine base (1) The center part of the front part of the conveyor cover (184) provided with a sorting work light (189) for illuminating the conveying side of the conveyor (151) and covering the upper end of the lifting conveyor (5) with the digging work light (188) While the upper part of the left and right support frames (56) is mounted to support the hanging curtain (186) hanging down from the stem-and-leaf separator conveyor (114) to the small ball conveyor (150). It is attached to the central part of the frame frame (187) horizontally laid on the side, and each light (188) (189) is adjusted to change its irradiation direction by adjusting the steering part (4) or engine part (1) of the engine part (3). 3) On the other side It is attached to a position that allows from any flop (16b). Each light (188) (189) is the uppermost part of the fuselage, and the digging work light (188) changes the irradiation direction following the lifting and lowering of the digging part (7) etc. from the lifting conveyor (5), The sorting light (189) is fixed regardless of the lifting and lowering of the lifting conveyor (5), and is attached at a position to hold the irradiation direction in a fixed direction.
[0043]
The small ball removal conveyor (150) is disposed above the rear lower inclined surface (11d) on the rear side of the top (11a) of the bonnet (11) of the engine unit (3), and falls out of the small ball removal conveyor (150). Kodama, pebbles and the like are dropped onto the rear-falling inclined surface (11d) on the rear side from the top (11a) of the bonnet (11) of the engine part (3). The pebbles and pebbles that have fallen on the rearwardly inclined surface (11d) on the rear side from the top (11a) of the bonnet (11) slide down on the downwardly inclined surface (11d) and from the rear side of the engine part (3). It is configured to be charged and stored in the left and right receiving boxes (41a) and (41b) on the front side of the storage section (14). As a result, the small balls and pebbles that are separated in the process of transporting the onion to the container (13) and are not left in the field are separated from the foliage that is left in the field and stored appropriately, and post-processing such as pebbles and pebbles is easily performed. Can be done. In addition, the bonnet (11) serves as a shooting chute from the small ball conveyor (150) to the left and right receiving boxes (41a) (41b) on the front side of the storage section (14), eliminating the need for a dedicated charging chute. It contributes to the reduction. The rear lower inclined surface (11d) on the rear side of the top (11a) of the bonnet (11) is the distance between the left and right legs (40a) on the front side of the sorting table (40) immediately before the sorting table (40). The lower end of the rearwardly inclined surface (11f) having a narrow width is extended from between the left and right legs (40a) on the front side of the sorting table (40) to the inside of the sorting table (40). The rear wall surface (11e) having the same lateral width and the same vertical width as the lower end portion (11f) of the inclined surface is lowered to the front wall surface of the left and right receiving boxes (41a) (41b) on the front side of the storage portion (14). Is extended. Left and right guide side plates (190) are provided to be fixed upright at right angles to the upper surface of the rear-falling inclined surface (11d) on the rear side from the top portion (11a) of the bonnet (11), and the left and right guide side plates (190) The intermediate portion is bent inward so as to rise from the left and right end portions on the inclined upper end side of the inclined surface (11d) and to raise the lower end portion from the left and right end portions of the inclined surface lower end portion (11f). The left and right guide side plates (190) fall out of the small ball conveyor (150) and fall on the inclined surface (11d), and spills on the left and right outer sides of the inclined surface (11d) and are released to the field. In addition to preventing, small balls, pebbles and the like slide down on the inclined surface (11d), and the left and right leg portions (40a) on the front side of the sorting table (40) at the lower end portion (11f) of the inclined surface. Within the interval, and passed between the left and right legs (40a) on the front side of the sorting table (40) and put into the left and right receiving boxes (41a) and (41b) on the front side of the storage part (14). It comes to store. This eliminates the recovery loss of pebbles, pebbles, etc., and allows pebbles, pebbles, etc. to be thrown into the left and right receiving boxes (41a), (41b) on the front side of the reservoir (14) substantially evenly. Is prevented from tilting to one side. By providing the rear wall surface (11e) of the bonnet (11) so as to be inclined downward rather than vertically, the front and rear receiving boxes (41a) and (41b) of pebbles and pebbles are placed in the front part of the storage part (14). It can be introduced from the center in the front-rear direction instead of from the center.
[0044]
The left and right discharge chutes (153) of the sorting section (15) are arranged on the rear side of the storage section (14) from the outside of the left and right sorting frames (149) at the center in the front-rear direction of the left and right steps (16) for sorting workers. It is provided up to the open upper surface of the left and right receiving boxes (42a) (42b). The left and right discharge chutes (153) are fixed to the left and right sorting frames (149). The left and right discharge chutes (153) open upward at the same height as the upper surfaces of the left and right sorting frames (149), and are removed by the sorting operator on the left and right outer sides of the front part of the sorting conveyor (151). By forming a slot (153a) for throwing a ball or a spoiled ball, the body can of course be thrown into the slot (153a) from picking a ball or a spoiled ball without moving the arm too much. This reduces the burden on sorting workers and improves sorting accuracy. The left and right discharge chutes (153) are inclined inwardly toward the partition wall (43) of the reservoir (14), and the receiving boxes (42a) are opened from the open upper surfaces of the left and right receiving boxes (42a) and (42b). ) (42b), the damaged balls and the spoiled balls are discharged, and the hopper-shaped receiving boxes (42a) and (42b) are appropriately stored with the damaged balls and the spoiled balls. Damaged balls and spoiled balls removed by the sorting operator are stored separately from the small balls and pebbles separated by the small ball conveyor (150), so that they are stored. The post-processing can be performed easily.
[0045]
The sorting unit (15) is configured by integrally assembling a ball removing conveyor (150), a sorting conveyor (151), a hydraulic motor (152), and left and right discharge chutes (153) to the left and right sorting frames (149). ing. The sorting unit (15) is supported by a sorting table (40) standing and fixed on the rear half of the machine table (1) via a fulcrum shaft (191) so as to be tiltable to the left and right, and the sorting table (40) and the sorting unit. A gas or hydraulic cylinder type spring (192) is stretched between (15) and the sorting part (15) is supported on the machine base (1) so that it can be tilted right and left. A central horizontal connection frame (40d) is horizontally mounted on the middle part of the left and right upper vertical frames (40c) that are horizontally mounted on the upper ends of the left and right front and rear leg portions (40a) and (40b) of the sorting table (40). The front and rear lower fulcrum plates (193) are opposed to each other upward from the left and right central portions of (40d) and the left and right central portions of the rear horizontal connecting frame (40e) that are horizontally mounted on the upper ends of the left and right leg portions (40b). The front and rear upper fulcrum frames (194) are installed between the left and right sorting frames (149) on the front lower side and the middle lower side of the sorting conveyor (151). The front and rear fulcrum shafts (191) are provided via front and rear fulcrum shafts (191) provided at the upper end of the lower fulcrum plate (193) on the same axis in the longitudinal direction of the upper and lower fulcrum frames (194). ) Rotating around, and sorting table It is tiltably supported the sorting section (15) from side to side 40). The upper bracket (195) is protruded and fixed downward from the left and right sides of the upper fulcrum frame (194) on the rear side, and the inner side from the middle part of the left and right legs (40b) on the rear side of the sorting table (40). The lower bracket (196) is protruded and fixed to the upper bracket (195), and a spring (192) is stretched between the upper and lower brackets (195). 40) is fixedly supported. The adjustment of the inclination angle of the sorting part (15) is performed by stepping on a foot pedal (197) provided on the upper surface of the rear part of the step (16) on the left or right or left and right side for the sorting operator, and showing the spring (192). The spring (192) can be expanded and contracted by opening the pressure release valve to the atmosphere so that one of the left and right sorting frames (149) can be pushed or lifted in that state. After the adjustment, when the foot is removed from the foot pedal (197), the foot pedal (197) is automatically restored by the spring, and the pressure release valve (not shown) of the spring (192) is automatically closed, and the spring (192) The length is fixed, and the tilt angle of the screening unit (15) after adjustment is maintained. The sorting table (40) is provided with left and right shock absorbing rubbers (198) which are stoppers for tilting the sorting unit (15). A cushion rubber (198) is attached to the upper surface of the left and right upper vertical frames (40c) of the sorting table (40), and is horizontally mounted on the left and right ends of the upper fulcrum frame (194) at the left and right tilt limit positions of the sorting portion (15). The left and right vertical connection frames (199) are brought into contact with the shock absorbing rubber (198), thereby restricting the left and right tilting range of the sorting portion (15).
[0046]
The left and right struts (200) are vertically fixed to the rear end of the machine base (1), and the pivotal fulcrum shaft (202 is inserted into the vertically long guide hole (201) formed on the upper rear side of the left and right struts (200). ) And the left and right hydraulic cylinders (between the rear end of the machine base (1) and the rear part of the cargo bed (12). 203) is stretched, and the left and right hydraulic cylinders (203) are expanded and contracted to move the platform (12) up and down. The left and right hydraulic cylinders (203) are reduced to their minimum positions, and the body is moved back and forth with the loading platform (12) lowered to the lowest position where the pivot fulcrum shaft (202) is located at the lower end of the guide hole (201). The container (13) is loaded and unloaded by moving it, and the left and right hydraulic cylinders (203) are extended from the most contracted state with the empty container (13) mounted, and the upper end of the guide hole (201) The platform (12) is lifted to the highest position where the rotation fulcrum shaft (202) is located, and the left and right hydraulic cylinders (203) are extended to the maximum extension state, and the rotation located at the upper end of the guide hole (201). The empty container (13) is rotated forward together with the loading platform (1) around the moving fulcrum shaft (202), the empty container (13) is tilted forward, and the rear part of the sorting conveyor (151) is moved to the empty container. (13), and in this state, the onion harvesting operation is started. Thereafter, the left and right hydraulic cylinders are discharged according to the amount of onion discharged from the rear end of the sorting conveyor (151) and loaded into the container (13). (203) is reduced from the most extended state, and the container (13) is rotated rearward together with the loading platform (1) around the rotation fulcrum shaft (202) positioned at the upper end of the guide hole (201). (13) are sequentially raised and loaded with onions. When the unloading is approaching, the container (12) is raised at the highest position where the pivot fulcrum shaft (202) is located at the upper end of the guide hole (201). (13) is returned to the standing state, and the onion is loaded until the container (13) is full. When the container (13) is full, the left and right hydraulic cylinders (203) are reduced to the minimum contraction state, and the guide holes (20 ) Lowers the loading platform (12) to the lowest lowered position where the pivot fulcrum shaft (202) is located at the lower end, lowers the full container (13) from the loading platform (12) to the field, and loads the empty container (13) into the loading platform. (12) is loaded. Left and right guide arms (204) extend from the rear upper part of the loading platform (12) to the left and right outer sides, and extend from the tips of the left and right guide arms (204) to the upper outer sides of the left and right side walls of the container (13). Right and left guide claws (205) are provided, the container (13) is shifted to the left or right and loaded on the loading platform (12), and the balance between the left and right sides of the aircraft is lost due to the weight of the onion loaded on the container (13). It is designed to prevent this. The left and right guide arms (204) are mounted immediately above the left and right steps (16) for the sorting worker and serve as guards that prevent the sorting worker from dropping from the rear ends of the left and right steps (16). Has come to fulfill.
[0047]
Front and rear rotation fulcrum shafts (206) parallel to the left-right direction of the machine body are horizontally mounted below the left and right vertical frames (17) of the machine base (1). The front and rear pivot fulcrum shafts (206) have left and right ends supported by left and right vertical frames (17) of the machine base (1) via left and right bearings (207). The front and rear pivot fulcrum shafts (206) rotatably support the middle portion of the left and right swing arms (208), and the front portions of the left and right track frames (209) of the crawler type traveling device (2) and The front and rear pivot shafts (210) parallel to the left and right sides of the aircraft are fixed to the rear, and the front and rear pivot shafts (210) of the left track frame (209) are attached to one end of the left and right swing arms (208). While the bearings are rotatably supported, the front and rear pivot shafts (210) of the right track frame (209) are rotatably supported at one end of the right and left swing arms (208), and the left and right track frames (209) are rotated. It is connected to the left and right vertical frames (17) of the machine base (1) through a pair of front and rear swing arms (208) so as to be movable up and down. The left and right hydraulic cylinders (211) are stretched between the horizontal frame (18) of the machine base (1) between the front and rear rotation fulcrum shafts (206) and the other ends of the left and right swing arms (208). In addition, the other ends of the front and rear swing arms (208) are connected via a connecting rod (212) whose length is adjustable, and the left and right front and rear swing arms (208) are expanded and contracted by the left hydraulic cylinder (211). ) Swings up and down to move the left track frame (209) up and down, while the right hydraulic cylinder (211) expands and contracts to swing the right and left swing arms (208). (209) is moved up and down.
[0048]
Left and right output shafts that extend from the transmission (21) mounted at the center of the front end of the machine base (1) to the left and right outer sides and project at the ends of the left and right final cases (213) (214) The left and right drive sprockets (215) are provided on the left and right track frames (209), and a plurality of lower wheels (216) and idlers (217) for adjusting the lower wheels and tension are provided on the left and right track frames (209). The left and right drive sprockets (215) provided below the front end side of (1) and the left and right idler wheels (217) provided below the rear end side of the machine base (1) The crawler (218) is wound, the left and right crawlers (218) are grounded and supported by the lower roller (216) and the idler wheel (217), and the right and left between the lower roller (216) at the rearmost part and the idler wheel (217) are supported. No crawler (218) Supporting the ground, the left and right crawlers (218) are grounded to the rear end of the machine base (1) to increase the ground contact length of the left and right crawlers (218), to stabilize the airframe, and to drive sprockets (215) The middle part of the left and right crawlers (218) between the two and the idler wheel (217) is supported by a fixed upper roller (219) that is supported by the machine base (1), and the upper roller (219). The crawler type traveling device (2) is configured by supporting the non-grounded rear portions of the left and right crawlers (218) between the left and right idlers (217) with crawler guides (220) provided on the left and right track frames (209). The left and right crawlers (218) are driven in the same rotational direction and at the same rotational speed so that the aircraft moves straight forward and backward, and the left and right crawlers (218) are driven in the reverse direction to drive the left or right side of the aircraft. Turn There, so that to correct the aircraft traveling direction by driving the left and right crawler (218) in at different rotational speeds the same direction of rotation.
[0049]
A horizontal sensor (221) for detecting the left and right tilt angles of the machine base (1) and a solenoid (222) for the left and right electromagnetic switching valves of the left and right hydraulic cylinders (211) are provided at a substantially central portion of the machine base (1). The controller (223) is connected to the controller (223), and the controller (223) detects that the horizontal sensor (221) detects the left and right solenoids (222) so that the left and right tilt angles of the machine base (1) are "0", that is, the horizontal state. To control the operation of the left and right hydraulic cylinders (211), so that the machine base (1), that is, the machine body is kept horizontal. When the field is tilted to the left (right), the left (right) hydraulic cylinder (211) is extended to the left (right) track frame (209) and the left (right) crawler (218) grounding portion. , And the left side (right side) of the machine base (1) is lifted until the machine base (1) returns to the horizontal state, so that the machine base (1) is kept horizontal.
[0050]
The sorting unit (15) supported on the machine base (1) so as to be tiltable to the right and left is normally supported and fixed in parallel with the machine base (1), and the sorting unit (15) is kept horizontal by maintaining the machine base (1) horizontally. The conveying surface of the sorting conveyor (151) is kept horizontal so that the onion does not shift to one side. And, usually when there are only two sorting workers, the sorting section (15) is set to the machine base (1) so that one side of the sorting conveyor (151) on which the one sorting operation is boarded is slightly lowered. By tilting and supporting the onion, it is possible to move the onion, which is sent back by the sorting conveyor (151), to one sorting work side, and of course the sorting work can be done without moving the arm too much. The burden on the user is reduced and the sorting accuracy is improved.
[0051]
The straight transmission HST (22) and the turning HST (23) provided at the input part of the mission (21) are connected to the main transmission lever (27) provided at the side column (27) of the control part (4). 31) The operation is transmitted to change the speed, and the turning lever (30) is operated by the internal mechanism (not shown) of the handle column (30) by operating the round traveling handle (29) provided in the handle column (30) to the turning HST (23). It is converted into an operation amount corresponding to the operation position of 31) and transmitted to perform a speed change operation to transmit power to the mission (21). The round traveling handle (29) allows the vehicle to be steered as if it were an automobile, making it easy and smooth to handle the digging line.
[0052]
Transmission from the engine (20) to the lifting conveyor (5) and the foliage separation conveyor (114) is performed on the side of the aircraft opposite to the control unit (4), and on the side of the aircraft opposite to the control unit (4). A drive source (152) of the sorting unit (15) is provided, and transmission from the drive source (152) to the balllet removing conveyor (150) and the sorting conveyor (151) is performed on the side of the airframe opposite to the control unit (4). This is intended to take measures against noise of an operator boarding the control section (4). When there is only one sorting worker, the noise of the sorting worker is reduced by boarding the step (16) on the control unit (4) side. Board the balllet conveyor (150) and the drive / stop operation member (224) and the steering unit (4) of the sorting conveyor (151) near one or both of the left and right discharge chutes (153) of the sorting unit (15). An operation member (225) for an alarm to the operator is provided.
[0053]
【The invention's effect】
As apparent from the above examples, the onion harvester of the present invention has the digging blade (78) on the front side of the machine base (1) having the traveling device (2) and mounting the engine (20) on the front part. The rear side is provided with a platform (12) that can be moved up and down and rotated, the container (13) is mounted on the platform (12), and the onion that has been dug up from the field by the digging blade (78) is driven into the conveyor (71). Then, it is scraped onto the post-feed conveyor (70), conveyed to the lifting conveyor (5) by the post-feed conveyor (70), and the foliage separation conveyor (upper front of the machine base (1) by the lifting conveyor (5) ( 114) and then transported from the foliage separation conveyor (114) to the sorting conveyor (151) above the rear of the machine base (1) via the small ball removal roller (154), and then fed back by the sorting conveyor (151) to the container. In the onion harvester loaded in (13), the bonnet ( 1) is formed in a mountain shape in a side view, and the front end portion of the foliage separation conveyor (114) faces the front downward inclined surface (11b) on the front side from the top portion (11a) of the bonnet (11), The foliage separated in the process of transporting the onion to the container (13) can be released to the field without accumulating on the aircraft, preventing malfunctions and failures of machinery and equipment due to accumulated foliage, and maintaining the aircraft・ Easy inspection and cleaning.
[0054]
The small ball removal roller (154) is arranged above the rear lower inclined surface (11d) behind the top (11a) of the bonnet (11) and separated in the process of transporting the onion to the container (13). The small balls and pebbles that are not left in the field can be separated from the foliage that is left in the field and stored appropriately, and post-processing such as small balls and pebbles can be easily performed.
[0055]
In the rear part of the machine base (1), receiving boxes (41) and (42) are arranged side by side, and the pebbles and pebbles that have fallen out of the small ball removal roller (154) are located behind the top (11a) of the bonnet (11). The lower inclined surface (11d) guides to the front receiving box (41) and stores what has been removed by the sorting operator in the process of being fed back to the rear receiving box (42) by the sorting conveyor (151). By separating and storing damaged balls and spoiled balls, etc., removed by the sorting operator from the small balls and pebbles separated by the small ball removing roller (154), the small balls and pebbles and the damaged balls and Easy post-processing of spoiled balls.
[Brief description of the drawings]
[Figure 1] Left side view of the entire onion harvester
[Figure 2] Right side view of the entire onion harvester
[Figure 3] Front view of the whole onion harvester
[Figure 4] Rear view of the whole onion harvester
[Figure 5] Plan view of the whole onion harvester
FIG. 6 is an explanatory side view of the traveling device section.
FIG. 7 is an explanatory front view of the traveling device section.
FIG. 8 is an explanatory plan view of the engine unit.
FIG. 9 is an explanatory side view of the foliage separation part.
FIG. 10 is an explanatory plan view of the foliage separation part.
[Fig. 11] Illustration of transmission to lifting conveyor
FIG. 12 is an explanatory diagram of the angle adjustment of the foliage separation part.
FIG. 13 is an explanatory side view of the excavation part.
FIG. 14 is an explanatory plan view of the excavation part.
FIG. 15 is an explanatory side view of the sorting unit.
FIG. 16 is an explanatory plan view of the storage section.
FIG. 17 is an explanatory view of the back of the front part of the storage part.
FIG. 18 is an explanatory view of the rear of the rear part of the storage part.
FIG. 19 is an explanatory side view of a sorting unit.
FIG. 20 is an explanatory plan view of the sorting unit.
FIG. 21 is a side view of the front part of the sorting unit.
FIG. 22 is an explanatory diagram of a ball removal roller.
FIG. 23 is an explanatory diagram of a sorting conveyor.
FIG. 24 is an explanatory diagram of the rear of the sorting unit.
FIG. 25 is a side view of the loading platform.
FIG. 26 is an explanatory front view of the loading platform.
FIG. 27 is an explanatory plan view of the loading platform.
FIG. 28 is a partial explanatory diagram of the loading platform.
Fig. 29 Explanatory drawing of harvesting work
[Explanation of symbols]
(1) Machine stand
(2) Traveling device
(5) Lifting conveyor
(11) Bonnet
(12) Loading platform
(13) Container
(20) Engine
(41) Receiving box
(42) Receiving box
(70) Post-feed conveyor
(71) Stake conveyor
(78) Digging blade
(114) Foliage separation conveyor
(151) Sorting conveyor
(154) Kodama roller
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35136699A JP4236355B2 (en) | 1999-12-10 | 1999-12-10 | Onion harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35136699A JP4236355B2 (en) | 1999-12-10 | 1999-12-10 | Onion harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001161128A JP2001161128A (en) | 2001-06-19 |
| JP4236355B2 true JP4236355B2 (en) | 2009-03-11 |
Family
ID=18416817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35136699A Expired - Fee Related JP4236355B2 (en) | 1999-12-10 | 1999-12-10 | Onion harvester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4236355B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100824502B1 (en) * | 2006-10-31 | 2008-04-22 | 대한민국(관리부서:농촌진흥청) | Self-propelled onion harvester |
| CN109874513B (en) * | 2019-03-05 | 2023-07-28 | 农业农村部南京农业机械化研究所 | An intelligent cleaning system and cleaning method |
| KR102925344B1 (en) * | 2023-01-16 | 2026-02-09 | 이윤철 | Harvesting apparatus for underground crops |
-
1999
- 1999-12-10 JP JP35136699A patent/JP4236355B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001161128A (en) | 2001-06-19 |
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