JP3640073B2 - Rice transplanter - Google Patents

Rice transplanter Download PDF

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Publication number
JP3640073B2
JP3640073B2 JP2003206296A JP2003206296A JP3640073B2 JP 3640073 B2 JP3640073 B2 JP 3640073B2 JP 2003206296 A JP2003206296 A JP 2003206296A JP 2003206296 A JP2003206296 A JP 2003206296A JP 3640073 B2 JP3640073 B2 JP 3640073B2
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seedling
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split
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JP2004041203A (en
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邦夫 土井
修 竹内
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Yanma Agricultural Equipment Co Ltd
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Yanma Agricultural Equipment Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は例えば苗載台及び植付爪を備えて連続的に苗植作業を行う田植機に関する。
【0002】
【従来の技術】
従来、多条苗載台において、左右外側の苗載台を折畳んで左右幅を縮小させる技術がある。(例えば特許文献1参照)
【0003】
【特許文献1】
特開平7−241113号公報
【0004】
【発明が解決しようとする課題】
前記従来技術は、苗載台を折畳む機構を苗載台の裏面側に設けるから、裏面側構造の簡略化または組立分解などの作業性向上などを容易に行い得ないと共に、回転と摺動の操作によって苗載台を折畳む必要がある等の取扱い上の問題がある。
【0005】
【課題を解決するための手段】
請求項1に係る発明は、苗載台本体の苗載面上方に折畳み側苗載台を折畳み可能に構成してなる田植機において、苗載台本体のリブに固定し、且つ少なくとも中央側の1条分の苗載面を跨ぎ、さらに苗載台本体に対し折畳み側苗載台を同一面状に展開したときの苗載台本体のうち、折畳み側苗載台との隣接縁から少なくとも1条分の苗載面より中央側にて略平行に横設する2本の本体側苗台フレームと、折畳み側苗載台のリブに固定し、且つ少なくとも1条分の苗載面を跨いで略平行に横設する2本の分割側苗台フレームと、前記2本の本体側苗台フレームを連結する本体側回動支点フレームと、前記2本の分割側苗台フレームを連結する分割側回動支点フレームと、前記本体側回動支点フレームと分割側回動支点フレームとをカム部材を介して連結する門形状の回動フレームとを設け、前記本体側 回動支点フレームは、前記本体側苗台フレーム左右外側の上端部に設けられ、前記分割側回動支点フレームは、前記分割側苗台フレームの左右内側の上端部に設けられている。したがって、苗載台を折畳む回動フレームなどの機構を苗載面側に配置させ、苗載台の裏面側構造の簡略化または組立分解などの作業性向上などを容易に行い得ると共に、回動フレームの回転によって苗載台を折畳み得、かつ苗台フレームのリブとの連結によって苗載台の補強を行い得るものである。
【0006】
【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は苗載台の折畳み状態を示す側面説明図、図2は全体の側面図、図3は同平面図を示し、図中(1)は作業者が搭乗する走行車であり、エンジン(2)を車体フレーム(3)前部上方に搭載させ、ミッションケース(4)前方にフロントアクスルケース(5)を介して水田走行用前輪(6)を支持させると共に、前記ギヤ変速ケース(4)の後部にリヤアクスルケース(7)を連設し、前記リヤアクスルケース(7)に水田走行用後輪(8)を支持させる。そして前記エンジン(2)等を覆うボンネット(9)両側に予備苗載台(10)を取付けると共に、ステップ(11)を介して作業者が搭乗する車体カバー(12)によって前記ミッションケース(4)等を覆い、前記車体カバー(12)上部に運転席(13)を取付け、その運転席(13)の前方で前記ボンネット(9)後部に操向ハンドル(14)を設ける。
【0007】
また、図中(15)は8条植え用の苗載台(16)並びに複数の植付爪(17)などを具備する植付部であり、前高後低の合成樹脂製の前傾式苗載台(16)を下部レール(18)及びガイドレール(19)を介して植付ケース(20)に左右往復摺動自在に支持させると共に、一方向に等速回転させるロータリケース(21)を前記植付ケース(20)に支持させ、該ケース(21)の回転軸芯を中心に対称位置に一対の爪ケース(植付アーム)(22)(22)を配設し、その爪ケース(22)(22)先端に植付爪(17)(17)を取付ける。また前記植付ケース(20)の前側にローリング支点軸(23)を介して支持フレーム(24)を設け、トップリンク(25)及びロワーリンク(26)を含むリンク機構(27)を介して走行車(1)後側に支持フレーム(24)を連結させ、前記リンク機構(27)を介して植付部(15)を昇降させる昇降シリンダ(28)をロワーリンク(26)に連結させ、前記前後輪(6)(8)を走行駆動して移動すると同時に、左右に往復摺動させる苗載台(16)から一株分の苗を植付爪(17)によって取出し、連続的に苗植え作業を行うように構成する。
【0008】
また、図中(29)は走行変速レバー、(30)は植付昇降兼作業走行変速用副変速レバー、(31)は植付け感度調節レバー、(32)は主クラッチペダル、(33)(33)は左右ブレーキペダル、(34)は均平用センターフロート、(35)は均平用サイドフロート、(36)は8条用の側条施肥部である。
【0009】
図4乃至図12にも示す如く、前記苗載台(16)は左右最外端の2条分の苗載台(16)を分割して折畳み自在な分割台(16a)に形成し、機体中央の4条用苗載台本体(16b)に並行折畳み機構(屏風折り機構)(37)を介して分割台(16a)を連結させて、苗載台本体(16b)の作用面上方に略平行に分割台(16a)を折畳みするように設けている。
【0010】
前記折畳み機構(37)は、4条用苗載台本体(16b)のうち中央2条の苗載台本体(16)を跨いで左右両側のリブ(38)間上方で上下略平行に横設する門形状の本体側上下苗台フレーム(39)(40)と、分割台(16a)の左右2条分を跨いで左右両側のリブ(38)間上方で上下略平行に横設する門形状の分割側上下苗台フレーム(41)(42)と、リブ(38)に基端を固設する本体及び分割側苗台フレーム(39)(40)・(41)(42)の各リブ(38)位置上方で上下基端部間をそれぞれ相互に連結する上下縦フレーム(43)(1対の苗台フレーム(39)(40)・(41)(42)に対し3本)と、本体側の上下苗台フレーム(39)(40)の左右外側の各上端間を連結する回動支点である左右の本体側回動支点フレーム(44)と、分割側の上下苗台フレーム(41)(42)の左右内側の各上端間を連結する回動支点である左右の分割側回動支点フレーム(45)と、前記支点フレーム(44)(45)間をフレーム(44)(45)に嵌合するカム部材である上下回転カム体(46)(47)・(48)(49)を介して連結する門形状の回動フレーム(50)(51)とを備え、分割台(16a)の作用面を上方に臨ませた状態で苗載台本体(16b)の上方に分割台(16a)を2段に折畳みするように構成している。
【0011】
図9乃至図12に示す如く、各苗台フレーム(39)(40)・(41)(42)は、苗載台(16)の本体(16b)及び分割台(16a)のリブ(38)にボルト(52)を介し取外し自在に固定する上下フレームホルダ(53)(54)に、セットボルト(55)でもって着脱自在に固定させるもので、各苗台フレーム(39)(40)・(41)(42)の上下方向に固設するホルダ(56)にボルト(57)を介し縦フレーム(43)の両端を取外し自在に嵌合固定するように構成している。
【0012】
また、前記カム体(46)(47)・(48)(49)は支点フレーム(44)(45)側に固定する固定カム(46a)(47a)・(48a)(49a)と、該フレーム(44)(45)の軸方向に摺動自在な可動カム(46b)(47b)・(48b)(49b)とを備えるもので、本体及び分割側の上下苗台フレーム(39)(40)・(41)(42)に固設する上下筒軸(58)(59)・(60)(61)に各ボルト(62)を介し支点フレーム(44)(45)を取外し自在に固定させ、各支点フレーム(44)(45)に可動カム(46b)(47b)・(48b)(49b)を摺動自在に嵌合させると共に、本体側の固定カム(46a)(47a)を支点フレーム(44)と筒軸(58)(59)に、また分割側の固定カム(48a)(49a)を支点フレーム(45)と筒軸(60)(61)とに一体連結させて、回動フレーム(50)(51)を略180度回動させての分割台(16a)の折畳み時、各カム体(46)(47)・(48)(49)のカム凸面を相互に接触させて、上下カム体(46)(47)・(48)(49)の作用長さだけ分割台(16a)を上方に移動させて、この苗載台(16)の後方に薬剤散布機など他の作業機装備させた場合にも分割台(16a)とこれら作業機との干渉を防止するように構成している。
【0013】
また、分割側の支点フレーム(45)は苗載台(16)の底面に対し上端側の間隔を小とさせる一定角度(α)の傾斜を有して、分割台(16a)の折畳み時にこの後方に装備する作業機とのスペースを充分に確保すると共に、分割台(16a)の折畳み時の左右全横幅を、植付駆動系である左右最外側の爪ケース(植付アーム)(22)間の横幅より少なくとも1条(30cm)つまり左右でそれぞれ半条(15cm)以上短く形成し、折畳んだ状態でも左右最外側の爪ケース(22)間で苗載台(16)の横送りを可能に、また左右最外側の爪ケース(22)より内側の何れの横送り位置でも折畳みを可能とさせるように構成している。
【0014】
また、苗載台本体(16b)のリブ(38)上方に本体側苗台フレーム(39)(40)を立設させ、折畳み側苗載台である分割台(16a)のリブ(38)上方に折畳み側苗台フレーム(41)(42)を立設させ、苗載台(16)の苗載面よりも高位置で本体側苗台フレーム(39)(40)と折畳み側苗台フレーム(41)(42)を回動フレーム(50)(51)によって連結させる。そして、苗載台(16)を折畳む回動フレーム(50)(51)などの機構を苗載面側に配置させ、苗載台(16)の裏面側構造の簡略化または組立分解などの作業性向上などを行うと共に、回動フレーム(50)(51)の回転によって苗載台(16)を折畳み、かつ苗台フレーム(39)〜(42)のリブ(38)との連結によって苗載台(16)の補強を行う。
【0015】
さらに、苗マット押え(63)を苗載台(16)に備えるもので、苗載台(16)の2条毎に1組とし、1条の苗載台(16)の左右リブ(38)間に2本の苗押え棒(64)を配置させ、苗台フレーム(42)など苗載台(16)に固設する押えホルダ(65)に回動支点(66a)を介し基端ロッド(66)を上下位置調節自在に保持すると共に、苗押え棒(64)先端の横軸(67)の略中央を、この2条毎苗載台(16)中央のリブ上に配置する縦フレーム(43)のロック板(68)に係合させて、1つの苗マット押え(63)に対し1箇所のロックでこの取付保持を図るように構成している。
【0016】
図19乃至図21に示す如く、前記分割台(16a)の折畳み時にあっては、前記下部レール(18)を嵌合する下部案内レールである苗取出板(69)の左右最外側部及び左右サイドバンパ(70)も折畳み可能に設けたもので、植付作業時植付部(15)を畔などから保護するサイドバンパ(70)を先端に固着するバンパフレーム(71)基端を、左右最外側の植付ケース(20)外側に固設するパイプフレーム(72)に略90度上方向に取付金具(73)及び支点軸(74a)及び位置決めピン(74b)を介して折畳み可能に連結させている。
【0017】
また、前記苗取出板(69)の左右両端部の一定長さを分割して分割取出体(69a)に形成し、該取出体(69a)のブラケット(75)を中央の取出板本体(69b)側のブラケット(76)に折畳み支点軸(77)を介して略90度内側に折畳み可能に連結させ、折畳みされるバンパフレーム(71)の外側にこの取出板(69a)を折畳みするように構成している。
【0018】
そして前記苗載台(16)の折畳みされる分割台(16a)に対し、苗取出板(69)及びサイドフレーム(70)を左右でそれぞれ略半条(略15cm)以上折畳み長さを小さく形成して、分割取出体(69a)及びサイドフレーム(70)を折畳んだときにも、これら左右の取出し体(69a)及びサイドフレーム(70)間で折畳みした苗載台(16)を干渉させることなく移動可能とせるように構成している。つまり苗載台(16)の左右何れの移動位置における折畳みにあっても、苗取出板(69)及びサイドフレーム(70)の干渉のない折畳みを可能とさせることができるもので、折畳み作業の都度苗載台(16)を中央に寄せる作業の煩わしさ、このための安全スイッチの設置の必要もなく、常に折畳みされた左右の苗取出板(69)及びサイドフレーム(70)間に安全に保護されるものである。
【0019】
さらに、前記バンパフレーム(71)の先端部に支点軸(78)及びマーカ取付板(79)を介して左右の筋引マーカ(80)の基端を起伏自在に支持して、前記バンパフレーム(71)の折畳み収納時にあっては、前記マーカ(80)のマーカワイヤ(81)を引張り操作することによって、該マーカ(80)を後方などにはみ出させることなく苗載台(16)の側方に沿う状態に収納保持するように構成している。
【0020】
ところで図13及び図14にも示す如く、上部の回動フレーム(50)の左右フレーム(50a)(50b)のうち、右フレーム(50b)に固設する支軸(82)にフック(83)を回動自在に取付けていて、左右両端の分割台(16a)の折畳み時には左フレーム(50a)に右フレーム(59b)のフック(83)を係合させて、機体の左右略中央で左右分割台(16a)の相互を単一のフック(83)でもって直接的に固定させて、これら分割台(16a)の折畳み位置での保持を図るもので、作業者は苗載台(16)の略中央1箇所位置で左右分割台(16a)の折畳み時の固定と拡張時の固定解除を可能にできて、作業性を向上させることができると共に、固定のための機構も部品数の少ない簡潔なものとさせることができて、コストダウンも図れて経済的なものである。
【0021】
また、前記回動フレーム(50)(51)の両端を固定させる可動カム(46b)(47b)・(48b)(49b)に対し、回動フレームの回動支点近傍部となる両端取付部(50c)(51c)は前後方向に巾広で左右方向に巾狭の偏平細身形状に形成していて、苗縦送りなどにおける苗の引掛りを防止すると共に、左右方向の溶接代など増大させ可能とさせてこの連結強度を向上させるように構成している。
【0022】
また、上下の回動フレーム(50)(51)の長さは略1条の長さ(略30cm)とし、分割台(16a)の折畳み時には、左右それぞれで略2条分内側に移動する状態に設けると共に、回動フレーム(50)(51)を苗載台(16)の作用面上方に設けて、施肥ホースなどの干渉を回避させて、苗載台(16)の剛性を向上させるものである。
【0023】
さらに前記回動アーム(50)(51)は苗マット押え(63)と干渉することなく上下に配設されると共に、回動アーム(50)(51)の門形形状によって苗が引っ掛からない高さを確保し、苗マットのガードともなって苗を保護(苗載台(16)に苗を載せたままでもシートカバーをかぶせることが可能)するものである。
【0024】
またさらに、前記回動フレーム(50)(51)を連結する支点フレーム(44)(45)は他の縦フレーム(45)などより高強度のものを用いてこれらフレーム全体の強度バランスを向上させると共に、苗載台(16)に底面に対し本体側の支点フレーム(44)を高位置に、分割側の支点フレーム(45)を低位置に設けて、分割台(16a)の折畳みや、分割台(16a)及び取出体(69a)合体時の位置合わせ作業などの操作性を向上させるものである。
【0025】
また、上下の苗台フレーム(39)(40)・(41)(42)を剛性の高いガイドレール(19)及び下部レール(18)上にボルト(52)を介し取付けて、この取付強度を向上させると共に、これら苗台フレーム(39)(40)間を連結する縦フレーム(43)や支点フレーム(44)(45)をリブ(38)上でリブ(38)に沿う状態に設けて、苗との干渉を良好に防止するものである。
【0026】
さらに図7に示す如く、苗載台(16)に横設する各レール(18)(19)と、苗載台(16)の各リブ(38)位置裏面に配設する縦フレーム(84)とをそれぞれ連結して、剛性の高いフレーム構造に形成し、また縦フレーム(84)で分割台(16a)を分割して、縦フレーム(84)に継ぎ目を形成してこの剛性を向上させると共に、各レール(18)(19)と縦フレーム(84)の交点部に各苗台フレーム(39)(40)・(41)(42)の基端部を取付固定させて、折畳み構造の強度を向上させるものである。
【0027】
なお(85)は前記ガイドレール(19)に嵌合させて苗載台(16)の上部を左右摺動自在に支持する苗台支持シュー、(86)は苗載台(16)の1条毎に2つ並設する苗縦送り体である。
【0028】
図8に示す如く、前記苗台支持シュー(85)は、苗載台(16)の本体(16b)側に2つ、また左右の分割台(16a)側にそれぞれ1つ配設し、前記支持フレーム(24)にローリング自在に連結させる植付ケース(20)の左右立設支柱(87)に、U形状の支持体(88)を解し本体(16)側の2つの支持シュー(85a)を固定支持させると共に、分割台(16a)側の左右各1つの支持シュー(85b)を左右支柱(87)先端に折畳み自在に連結支持させている。
【0029】
前記支持体(88)は、左右支柱(87)間を連結する連杆(89)に基端を固定させ、支持体(88)の水平部両側に調節ボルト(90)を介し取付高さ調節自在に本体支持シュー(85a)を固定させている。また、ローリング制御用の油圧シリンダ(91)のピストンロッド(92)両側を前記連杆(89)に連結させ、シリンダ(91)操作によってピストンロッド(92)を左右に移動させるときローリング支点軸(23)を中心として植付部(15)を左右に傾動させて、植付部(15)の水平維持を図るもので、油圧シリンダ(91)やこのシリンダ(91)の切換弁(93)などローリング制御用の油圧装置を、支持体(88)のU形状内側に配設して、支持体(88)でシリンダ(91)及び切換弁(93)など油圧装置を保護して、これらの寿命を延命化させるように構成している。
【0030】
一方、分割台(16a)側の支持シュー(85b)は、左右支柱(87)上端に固設する固定台(94)に回動板(95)を介し下方に略90度折畳み可能に支持させて、前記分割台(16a)の折畳み時には回動板(95)に設けるハンドル(96)操作によってこの支持シュー(85b)も折畳んで左右全巾を縮小させるように構成している。
【0031】
前記上下フレームホルダ(53)(54)は各苗台フレーム(39)(40)・(41)(42)とは別体とし、各リブ(38)を貫通するボス(97)を有して苗載台(16)裏側の各レール(19)(18)と連結させることによって、各苗台フレーム(39)(40)・(41)(42)を苗載台(16)に取付時の寸法誤差などを吸収してこじれ等の応力を低減させると共に、ボス(97)による苗との干渉を防止しながら苗載台(16)右側のフレーム(39)(40)・(41)(42)などと裏側のレール(19)(18)を一体的なものとさせて、その取付精度と強度の向上を図るように構成したものである。
【0032】
図7、図15乃至図18に示す如く、前記分割台(16a)を使用状態に拡張時に、本体(16b)との位置決め及び固定の両方を行うロック操作レバー(98)を左右分割台(16a)の最外側で上下レール(19)(18)位置の2箇所にそれぞれ設けるもので、前記レバー(98)は回動枢支軸(99)を介し、分割台(16a)裏面のガイド体(100)に左右摺動自在に案内されるスライド軸(101)に連結させ、本体(16b)裏面に固設する位置決め案内部材(102)に前記スライド軸(101)先端の位置決め部材であるガイド軸部(101a)を挿入させるように構成している。
【0033】
前記案内部材(102)は上部ガイドレール(19)と本体(16b)間に介設され、円形の貫通孔部(103a)と、貫通孔(103)の円形対向面に形成する一対の長溝部(103b)とからなる軸係合孔(103)を有し、また前記スライド軸(101)はガイド軸部(101a)に隣接して前記長溝(103b)に係合する位置固定部材である平板部(101b)を有し、これら長溝部(103b)と平板部(101b)とを係合させることによって、平板部(101b)を案内部材(102)の反対側に挿通可能とさせるように設けている。
【0034】
また前記操作レバー(98)の基端をカム部(98a)に設けていて、該レバー(98)の固定操作時には分割台(16a)に固定するレバー保持部材(104)に、該カム部(98a)を係合保持させるように設ける一方、係止部材(104)に接触するカム部(98a)の下部外周面をカム面(98b)に形成して、枢支軸(99)とカム面(98b)間の最大距離(a)と最小距離(b)の差(a−b)分、レバー(98)操作でもってスライド軸(101)を後退可能とさせるように設けている。そして分割台(16a)の拡張時にあっては前記貫通孔部(103a)とガイド軸部(101a)とを係合させることによって分割台(16a)の位置決めを行い、次にレバー(98)を軸(101)回りに回動して長溝部(103a)と平板部(101b)とを合致させ、レバー(98)の傾倒押し込み操作で平板部(101b)を案内部材(102)の反対側に突出させる状態のとき、長溝部(103b)に対し平板部(101b)を略90度回転させて平板部(101b)の後面と案内部材(102)の反対側面(102a)とを干渉状態とさせ、その後レバー(98)を傾倒姿勢より立設姿勢に操作するときカム面(98b)のカム作用でもって、本体(16b)側に分割台(16a)を押着させてその位置固定を図るように構成している。
【0035】
このように前記分割台(16a)の使用拡張時には、単一のレバー(98)操作によって、位置決めと固定の両方が行えて、これらをそれぞれ別個に備える構造に比べて、構造簡単で操作性にも極めて秀れるものである。
【0036】
なお前記分割台(16a)の使用拡張時にあっては、分割台(16a)の中間部と下端部の位置合わせを前記スライド軸(101)のガイド軸部(101a)で行う以外に、分割台(16a)の上端部で本体(16b)の上部側面に突出させる位置決めピン(105)と分割台(16a)側のピン孔との係合によって位置合わせを行うものである。
【0037】
ところで図1にも示す如く、前記植付ケース(20)の後端にバンパー(106)を取外し自在に固定させていて、機体最後端となる該バンパー(106)より折畳みした分割台(16a)の下部最後端を一定寸法(T)前方に位置させるように設けて、分割台(16a)を折畳んだ状態においても、機体全長が長くなるのを防止し前後バランスを良好に保って、この田植機の移動や輸送時での安定性を確保すると共に、屋内などに収納時の収納スペースの縮小化を図るように構成している。
【0038】
また、前記苗載台(16)の上端に基端を取付けて先端を上方に延設させる延長苗台(107)は、各分割台(16a)及び本体(16b)にボルト(108)を介し突出長さ調節自在に取付けて、分割台(16a)の折畳み時施肥部(36)の施肥ホッパ(109)の最上端面より下方(図4のライン(L)より下方位置)に位置させる状態に延長苗台(17)を下動調節することによって、この田植機を運搬車に搭載させての輸送時などには全高を最低限に抑えて車への搭載も可能とすると共に、シートカバーを機体にかぶせての保管時には延長苗台を損傷から防止するように構成したものである。
【0039】
図22に示すものは、ロータリケース(21)を備える植付ケース(20)間の伝動ケース(110)を間隔巾調節自在な内ケース(110a)及び外ケース(110b)に形成して、これら内外ケース(110a)(110b)を摺動自在に嵌合させると共に、これら内外ケース(110a)(110b)に内挿させる植付爪駆動軸(111)も分割してスプライン嵌合する2つの伸縮軸(111a)(111b)に形成して、苗載台(16)の折畳み時には植付ケース(20)の左右全幅も縮小させることによって、同一の本機(8条植え)で水稲以外の作物(いぐさ等)に対応(例えば33cm仕様以上など30cm条間以外の作物)可能とさせて輸送時などでその取外しを不要とさせる他、10条以上の超多条植え用に対応可能とさせるように構成したものである。
【0040】
なおこの場合、苗載台(16)折畳み位置となる左右両側の植付ケース(20)のみ摺動可能に設けて、左右両側のケース間隔巾のみを縮小させる構成を示したが、全植付ケース(20)のケース間隔巾を均等に縮小させる構成でも良い。
【0041】
さらに図23及び図24に示すものは、本機に側条施肥部(36)の施肥ホッパ(109)を装備させるミッドマウント式構造にあって、前記ホッパ(109)を運転席(13)下方に配置し、運転席(13)の背もたれ部(13a)を回動支点(112)を中心として前方向に回動自在な可倒式に形成し、運転席(13)の左右全巾をホッパ(109)の左右全巾と略同一とする横長のベンチシートに形成し、該運転席(13)でもってホッパ(109)の上部保護カバーも兼用させるもので、田植機の全長を短くし、苗継ぎや後方視界を良好とさせ、また前記ホッパ(109)は運転席(13)下方の余剰空間を有効利用して容量を拡大させ、さらに背もたれ部(13a)の折畳みによって田植機の全高を短く抑えて2段車に積載可能とさせるなどして輸送を至便とさせ、またさらにベンチ式の運転席(13)によって複数の乗車も可能に構成したものである。
【0042】
【発明の効果】
以上実施例から明らかなように、請求項1に係る発明は、苗載台本体(16b)の苗載面上方に折畳み側苗載台(16a)を折畳み可能に構成してなる田植機において、苗載台本体(16b)のリブ(38)に固定し、且つ少なくとも中央側の1条分の苗載面を跨ぎ、さらに苗載台本体(16b)に対し折畳み側苗載台(16a)を同一面状に展開したときの苗載台本体(16b)のうち、折畳み側苗載台(16a)との隣接縁から少なくとも1条分の苗載面より中央側にて略平行に横設する2本の本体側苗台フレーム(39)(40)と、折畳み側苗載台(16a)のリブ(38)に固定し、且つ少なくとも1条分の苗載面を跨いで略平行に横設する2本の分割側苗台フレーム(41)(42)と、前記2本の本体側苗台フレーム(39)(40)を連結する本体側回動支点フレーム(44)と、前記2本の分割側苗台フレーム(41)(42)を連結する分割側回動支点フレーム(45)と、前記本体側回動支点フレーム(44)と分割側回動支点フレーム(45)とをカム部材(46)(47)・(48)(49)を介して連結する門形状の回動フレーム(50)(51)とを設け、前記本体側回動支点フレーム(44)は、前記本体側苗台フレーム(39)(40)左右外側の上端部に設けられ、前記分割側回動支点フレーム(45)は、前記分割側苗台フレーム(41)(42)の左右内側の上端部に設けられている。したがって、苗載台(16)を折畳む回動フレーム(50)(51)などの機構を苗載面側に配置させ、苗載台(16)の裏面側構造の簡略化または組立分解などの作業性向上などを容易に行うことができると共に、回動フレーム(50)(51)の回転によって苗載台(16)を折畳むことができ、かつ苗台フレーム(39)〜(42)のリブ(38)との連結によって苗載台(16)の補強を行うことができるものである。
【図面の簡単な説明】
【図1】苗載台の折畳み状態を示す側面説明図である。
【図2】田植機の全体側面図である。
【図3】田植機の全体平面図である。
【図4】植付部の側面説明図である。
【図5】苗載台の折畳み状態を示す説明図である。
【図6】苗載台の折畳み固定状態を示す説明図である。
【図7】苗載台の背面説明図である。
【図8】苗台支持シューの取付説明図である。
【図9】折畳み機構の側面図である。
【図10】折畳み機構の下部側面説明図である。
【図11】折畳み機構の上部側面説明図である。
【図12】苗載台の折畳みを示す説明図である。
【図13】折畳み苗載台の折畳み固定部の正面説明図である。
【図14】折畳み苗載台の折畳み固定部の底面説明図である。
【図15】苗載台の拡張固定部の説明図である。
【図16】操作レバー部の説明図である。
【図17】スライド軸と係合孔の関係を示す説明図である。
【図18】位置決め用案内部材の説明図である。
【図19】植付ケース部の平面説明図である。
【図20】苗取出し板の折畳み状態を示す正面説明図である。
【図21】苗取出し板の折畳み状態を示す平面説明図である。
【図22】植付ケース部の左右全巾の縮小説明図である。
【図23】運転席下位置に配設する施肥ホッパの背面説明図である。
【図24】運転席下位置に配設する施肥ホッパの側面説明図である。
【符号の説明】
(16a) 折畳み側苗載台
(16b) 苗載台本体
(38) リブ
(39)(40) 本体側苗台フレーム
(41)(42) 折畳み側苗台フレーム
(44) 本体側回動支点フレーム
(45) 分割側回動支点フレーム
(46)(57) カム体(カム部材)
(48)(49) カム体(カム部材)
(50)(51) 回動フレーム
[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to, for example, a rice transplanter that includes a seedling stage and a planting claw and performs seedling planting work continuously.
[0002]
[Prior art]
  2. Description of the Related Art Conventionally, in a multi-row seedling stage, there is a technique for reducing the left and right width by folding the right and left outside seedling stages. (For example, see Patent Document 1)
[0003]
[Patent Document 1]
JP 7-241113 A
[0004]
[Problems to be solved by the invention]
  In the conventional technique, since a mechanism for folding the seedling stage is provided on the back side of the seedling stage, it is not possible to easily improve the workability such as simplification of the back side structure or assembly / disassembly, and rotation and sliding. There is a problem in handling such that it is necessary to fold the seedling stand by the operation.
[0005]
[Means for Solving the Problems]
  The invention according to claim 1 is a rice transplanter configured so that the folding side seedling stage can be folded above the seedling mounting surface of the seedling stage body, and is fixed to a rib of the seedling stage body, and at leastCentralAcross the seedling surface for one lineIn addition, among the seedling stand body when the folding side seedling stand is deployed on the same surface with respect to the seedling stand body, the center is at least one row from the adjacent edge with the folding side seedling stand. On the sideTwo main body side seedling frames horizontally arranged in parallel and two split sides fixed to the ribs of the folding side seedling loading table and horizontally arranged across at least one seedling loading surface A seedling frame, a main-body-side pivoting fulcrum frame that connects the two main-body-side seedling-frames, a split-side pivoting fulcrum frame that connects the two split-side seedling-frames, and the main-body-side pivoting The fulcrum frame and the split side rotation fulcrum frame are connected via a cam member.Gate-shapedA rotating frame,The body side The rotation fulcrum frame is provided at the upper left and right outer ends of the main body side seedling frame, and the split side rotation fulcrum frame is provided at the upper left and right inner ends of the division side seedling frame.. Therefore, a mechanism such as a rotating frame for folding the seedling table can be arranged on the seedling surface side to simplify the rear side structure of the seedling table or improve workability such as assembling and disassembling. The seedling stage can be folded by the rotation of the moving frame, and the seedling stage can be reinforced by being connected to the rib of the seedling frame.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory side view showing a folded state of the seedling stage, FIG. 2 is a side view of the whole, FIG. 3 is a plan view thereof, and (1) is a traveling vehicle on which an operator is boarded, 2) is mounted above the front of the vehicle body frame (3), the front wheel (6) for paddy field traveling is supported via the front axle case (5) in front of the transmission case (4), and the gear transmission case (4) A rear axle case (7) is continuously provided at the rear, and the rear axle case (7) supports the rear wheel (8) for paddy field travel. The spare seedling stage (10) is attached to both sides of the bonnet (9) covering the engine (2) and the like, and the mission case (4) is provided by a vehicle body cover (12) on which an operator boardes through the step (11). Etc., a driver's seat (13) is attached to the upper part of the vehicle body cover (12), and a steering handle (14) is provided at the rear of the bonnet (9) in front of the driver's seat (13).
[0007]
  Further, in the figure, (15) is a planting part comprising a seedling stand (16) for planting eight rows and a plurality of planting claws (17), etc. A rotary case (21) for supporting the seedling stage (16) on the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable to the left and right and rotating at a constant speed in one direction. Is supported by the planting case (20), and a pair of claw cases (planting arms) (22) (22) are arranged at symmetrical positions around the rotational axis of the case (21). (22) (22) Attach the planting claws (17) and (17) to the tip. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and travels via a link mechanism (27) including a top link (25) and a lower link (26). A support frame (24) is connected to the rear side of the vehicle (1), and an elevating cylinder (28) for raising and lowering the planting part (15) via the link mechanism (27) is connected to the lower link (26), At the same time as the front and rear wheels (6) and (8) are driven to move, the seedlings are taken out from the seedling mount (16) that slides back and forth to the left and right with the planting claws (17), and seedlings are planted continuously. Configure to do work.
[0008]
  In the figure, (29) is a traveling speed change lever, (30) is a sub-shifting lever for planting lifting and working traveling speed change, (31) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, and (33) (33 ) Is a left and right brake pedal, (34) is a leveling center float, (35) is a leveling side float, and (36) is a side strip fertilizer for 8 strips.
[0009]
  As shown in FIGS. 4 to 12, the seedling stage (16) is formed by dividing the seedling stage (16) for the two outermost ends into a split base (16a) that is foldable. A split stand (16a) is connected to the central four-row seedling stand main body (16b) via a parallel folding mechanism (folding folding mechanism) (37), and is approximately above the working surface of the seedling stand main body (16b). The dividing table (16a) is provided to be folded in parallel.
[0010]
  The folding mechanism (37) is disposed horizontally and substantially parallel above and between the ribs (38) on the left and right sides across the center two seedling mounting base bodies (16) of the four-row seedling mounting base bodies (16b). The gate-shaped top and bottom seedling frames (39) and (40), and the gate shape that lies horizontally in parallel above and below the left and right ribs (38) across the left and right strips of the split table (16a) Split-side upper and lower seedling frames (41) and (42), a main body whose base end is fixed to the rib (38), and ribs of the split-side seedling frame (39) (40), (41) and (42) ( 38) Upper and lower vertical frames (43) (three for one pair of seedling frames (39), (40), (41) and (42)) for connecting the upper and lower base ends to each other above the position, and the main body Left and right main bodies that are pivotal fulcrum connecting the upper left and right outer ends of the upper and lower seedling frame (39) (40) A rotation fulcrum frame (44), and left and right split-side rotation fulcrum frames (45), which are rotation fulcrums connecting the upper ends of the left and right inner sides of the split-side upper and lower seedling frame (41) (42); A gate shape connecting the fulcrum frames (44) and (45) via up and down rotating cam bodies (46) (47), (48) and (49) which are cam members fitted to the frames (44) and (45). And the folding table (16a) is folded in two steps above the seedling mounting body (16b) with the working surface of the dividing table (16a) facing upward. It is configured to do.
[0011]
  As shown in FIGS. 9 to 12, each seedling frame (39), (40), (41), and (42) includes a main body (16b) of the seedling table (16) and a rib (38) of the dividing table (16a). The upper and lower frame holders (53) and (54) are detachably fixed with set bolts (55), which are detachably fixed to the seedling frames (39), (40), ( 41 and 42 are configured so that both ends of the vertical frame (43) can be detachably fitted and fixed to a holder (56) fixed in the vertical direction via bolts (57).
[0012]
  The cam bodies (46), (47), (48), and (49) are fixed cams (46a), (47a), (48a), and (49a) that are fixed to the fulcrum frames (44) and (45), and the frame. (44) (45) comprising movable cams (46b) (47b), (48b) (49b) slidable in the axial direction, and upper and lower seedling frame (39) (40) on the main body and the split side The fulcrum frames (44) and (45) are detachably fixed to the upper and lower cylinder shafts (58), (59), (60) and (61) fixed to the (41) and (42) via the respective bolts (62), The movable cams (46b), (47b), (48b), and (49b) are slidably fitted to the fulcrum frames (44) and (45), and the fixed cams (46a) and (47a) on the main body side are fitted to the fulcrum frame ( 44) and cylindrical shafts (58) and (59), and fixed on the split side (48a) and (49a) are integrally connected to the fulcrum frame (45) and the cylindrical shafts (60) and (61), and the rotating frames (50) and (51) are rotated by about 180 degrees to obtain a divided base ( When folding 16a), the cam convex surfaces of the cam bodies (46), (47), (48), and (49) are brought into contact with each other, so that the upper and lower cam bodies (46), (47), (48), and (49) act. Even when the dividing table (16a) is moved upward by the length and another working machine such as a medicine spreader is installed behind the seedling mounting table (16), the dividing table (16a) and these working machines It is configured to prevent interference.
[0013]
  Further, the split-side fulcrum frame (45) has an inclination of a certain angle (α) that makes the distance between the upper end sides small with respect to the bottom surface of the seedling mounting table (16), and when this is done, the split table (16a) is folded. Enough space is secured with the work equipment to be installed in the rear, and the left and right outermost nail cases (planting arms) (planting arm) (22), which is the planting drive system, with the horizontal width when the split stand (16a) is folded. At least one strip (30 cm) shorter than the horizontal width between the left and right half strips (15 cm), and even in the folded state, the seedling table (16) can be fed laterally between the outermost nail cases (22). In addition, it is configured so that it can be folded at any lateral feed position inside the left and right outermost claw cases (22).
[0014]
  Also, the main body side seedling frame (39) (40) is erected above the rib (38) of the seedling table main body (16b), and the rib (38) above the split table (16a) which is the folding side seedling mounting table. The folding-side seedling frame (41) (42) is erected on the main body-side seedling frame (39) (40) and the folding-side seedling frame ( 41) (42) are connected by the rotating frames (50) (51). Then, a mechanism such as a rotating frame (50) (51) for folding the seedling mounting table (16) is arranged on the seedling mounting surface side, and the rear surface side structure of the seedling mounting table (16) is simplified or assembled / disassembled. In addition to improving workability, the seedling stage (16) is folded by rotating the rotating frames (50) and (51), and the seedlings are connected to the ribs (38) of the seedling frame (39) to (42). Reinforce the mounting table (16).
[0015]
  Further, the seedling mat presser (63) is provided on the seedling placing stand (16), and one set is provided for every two strips of the seedling placing stand (16), and the left and right ribs (38) of the one seedling placing stand (16) are provided. Two seedling pressers (64) are arranged between them, and a base rod (66a) is attached to a presser holder (65) fixed to a seedling stand (16) such as a seedling frame (42). 66) and a vertical frame (in which the center of the horizontal shaft (67) at the tip of the seedling presser bar (64) is disposed on the rib at the center of the two-row seedling mounting base (16). 43) is engaged with the lock plate (68), and is configured to be held by one lock with respect to one seedling mat presser (63).
[0016]
  As shown in FIGS. 19 to 21, when the split base (16 a) is folded, the left and right outermost portions of the seedling extraction plate (69), which is a lower guide rail for fitting the lower rail (18), and the left and right The side bumper (70) is also provided so as to be foldable. The base end of the bumper frame (71) for fixing the side bumper (70) to the tip of the side bumper (70) that protects the planting part (15) from the shore during the planting operation The outermost planting case (20) is connected to a pipe frame (72) fixed to the outside through a mounting bracket (73), a fulcrum shaft (74a), and a positioning pin (74b) so as to be folded approximately 90 degrees upward. I am letting.
[0017]
  Further, the left and right ends of the seedling extraction plate (69) are divided into a predetermined length to form a divided extraction body (69a), and the bracket (75) of the extraction body (69a) is attached to the central extraction plate body (69b). ) Side bracket (76) via a folding fulcrum shaft (77) so that it can be folded inward by approximately 90 degrees so that the extraction plate (69a) is folded outside the folded bumper frame (71). It is composed.
[0018]
  Then, the seedling extraction plate (69) and the side frame (70) are formed to have a small folding length on the left and right sides by approximately half strips (approximately 15 cm) with respect to the split base (16a) of the seedling platform (16). When the split take-out body (69a) and the side frame (70) are folded, the folded seedling stand (16) is made to interfere between the left and right take-out bodies (69a) and the side frame (70). It is configured to be movable without any trouble. That is, the folding can be performed without interference between the seedling take-out plate (69) and the side frame (70) regardless of whether the seedling stage (16) is folded at the left or right movement position. There is no need to install the safety switch for centering the seedling stand (16) in the center each time, and it is always safe between the left and right seedling extraction plates (69) and the side frames (70). It is to be protected.
[0019]
  Further, the base end of the left and right muscle marker (80) is supported at the tip of the bumper frame (71) via a fulcrum shaft (78) and a marker mounting plate (79) so as to be raised and lowered. 71) When folding and storing, by pulling the marker wire (81) of the marker (80), the marker (80) is moved to the side of the seedling stage (16) without protruding backward. It is configured to be stored and held in a state along.
[0020]
  13 and 14, the hook (83) is attached to the support shaft (82) fixed to the right frame (50b) of the left and right frames (50a) (50b) of the upper rotating frame (50). Is attached to the left and right sides of the split table (16a), and the left frame (50a) is engaged with the hook (83) of the right frame (59b) to divide the left and right sides at the approximate center of the left and right. The stand (16a) is directly fixed with a single hook (83) to hold the divided stand (16a) in the folding position. The right and left split base (16a) can be fixed when folded and extended at approximately one central position to improve workability, and the mechanism for fixing is also simple with a small number of parts. Can be made Sutodaun also those economic and Hakare.
[0021]
  Also, with respect to the movable cams (46b), (47b), (48b), and (49b) for fixing both ends of the rotating frame (50) (51), both end attachment portions (near the rotation fulcrum of the rotating frame) ( 50c) (51c) is formed in a flat and slender shape that is wide in the front-rear direction and narrow in the left-right direction, and prevents the seedling from being caught in the vertical feeding of the seedling and can increase the welding cost in the left-right direction. Thus, the connection strength is improved.
[0022]
  In addition, the length of the upper and lower pivot frames (50) (51) is approximately one length (approximately 30 cm), and when the split base (16a) is folded, it moves inward by approximately two lines on the left and right respectively. In addition, the rotating frame (50) (51) is provided above the working surface of the seedling stage (16) to avoid interference with a fertilizer hose and improve the rigidity of the seedling stage (16). It is.
[0023]
  Further, the rotating arms (50) (51) are arranged vertically without interfering with the seedling mat presser (63), and the height of the seedling is not caught by the gate shape of the rotating arms (50) (51). This secures the thickness and protects the seedling as a guard for the seedling mat (it is possible to cover the seat cover even when the seedling is placed on the seedling mount (16)).
[0024]
  Furthermore, the fulcrum frames (44) (45) connecting the pivot frames (50) (51) are higher in strength than the other vertical frames (45), etc., and the strength balance of these frames is improved. At the same time, the fulcrum frame (44) on the main body side is provided at a high position and the fulcrum frame (45) on the division side is provided at a low position with respect to the bottom surface of the seedling stage (16). This improves the operability such as the alignment work when the base (16a) and the extraction body (69a) are combined.
[0025]
  The upper and lower seedling frames (39), (40), (41), and (42) are mounted on the highly rigid guide rail (19) and the lower rail (18) via bolts (52), and this mounting strength is increased. In addition to improving the vertical frame (43) and fulcrum frames (44) (45) connecting the seedling frame (39) (40), the rib (38) is provided along the rib (38), This will prevent interference with seedlings.
[0026]
  Further, as shown in FIG. 7, the rails (18) and (19) provided horizontally on the seedling mounting table (16) and the vertical frame (84) disposed on the back surface of each rib (38) of the seedling mounting table (16). Are connected to each other to form a rigid frame structure, and the vertical frame (84) divides the dividing table (16a) to form a seam on the vertical frame (84) to improve the rigidity. The base end of each seedling frame (39), (40), (41), and (42) is attached and fixed at the intersection of each rail (18) (19) and the vertical frame (84), and the strength of the folding structure Is to improve.
[0027]
  Reference numeral (85) denotes a seedling support shoe that is fitted to the guide rail (19) and supports the upper part of the seedling stage (16) so as to be slidable left and right, and (86) is one item of the seedling stage (16). It is a seedling vertical feed body in which two are arranged side by side.
[0028]
  As shown in FIG. 8, two seedling support shoes (85) are disposed on the main body (16b) side of the seedling mounting base (16) and one on each of the left and right split bases (16a). Two support shoes (85a) on the main body (16) side are disassembled from the U-shaped support body (88) on the left and right upright support columns (87) of the planting case (20) to be connected to the support frame (24) in a rolling manner. ) Are fixedly supported, and one support shoe (85b) on each of the left and right sides of the split table (16a) is foldably connected to and supported by the ends of the left and right columns (87).
[0029]
  The support body (88) has a base end fixed to a linkage (89) that connects the left and right support columns (87), and the height of the support body (88) is adjusted via adjustment bolts (90) on both sides of the horizontal portion of the support body (88). The body support shoe (85a) is fixed freely. Further, both sides of the piston rod (92) of the hydraulic cylinder (91) for rolling control are connected to the linkage (89), and when the piston rod (92) is moved left and right by operating the cylinder (91), a rolling fulcrum shaft ( 23), the planting part (15) is tilted to the left and right around the center to maintain the planting part (15) horizontally. The hydraulic cylinder (91), the switching valve (93) of this cylinder (91), etc. The rolling control hydraulic device is disposed inside the U shape of the support (88), and the hydraulic support such as the cylinder (91) and the switching valve (93) is protected by the support (88), so that the service life of these devices is reached. It is configured to prolong life.
[0030]
  On the other hand, the support shoe (85b) on the side of the split base (16a) is supported by a fixed base (94) fixed to the upper ends of the left and right support columns (87) so that it can be folded downward by about 90 degrees via a rotating plate (95). When the split base (16a) is folded, the support shoe (85b) is also folded by the operation of the handle (96) provided on the rotating plate (95) to reduce the entire left and right width.
[0031]
  The upper and lower frame holders (53) and (54) are separated from the seedling frame (39), (40), (41) and (42), and have bosses (97) penetrating the ribs (38). By connecting with the rails (19), (18) on the back side of the seedling mounting table (16), the seedling frame (39) (40), (41) (42) is attached to the seedling mounting table (16). It absorbs dimensional errors and reduces stress such as twisting, and prevents the boss (97) from interfering with the seedling, while the right frame (39) (40), (41) (42) ) And the rear rails (19) and (18) are integrated so that the mounting accuracy and strength can be improved.
[0032]
  As shown in FIGS. 7 and 15 to 18, when the split table (16 a) is expanded to the use state, the lock operation lever (98) for positioning and fixing with the main body (16 b) is provided with the left and right split tables (16 a). ) At the upper and lower rails (19) and (18), respectively, and the lever (98) is connected to the guide body (16a) on the back surface of the split table (16a) via the pivot shaft (99). 100) is connected to a slide shaft (101) guided so as to be slidable left and right, and a guide shaft which is a positioning member at the tip of the slide shaft (101) is attached to a positioning guide member (102) fixed on the back surface of the main body (16b). The part (101a) is configured to be inserted.
[0033]
  The guide member (102) is interposed between the upper guide rail (19) and the main body (16b), and has a circular through hole portion (103a) and a pair of long groove portions formed on the circular opposing surface of the through hole (103). A flat plate that is a position fixing member that engages with the long groove (103b) adjacent to the guide shaft portion (101a). It has a portion (101b) and is provided so that the long groove portion (103b) and the flat plate portion (101b) are engaged with each other so that the flat plate portion (101b) can be inserted into the opposite side of the guide member (102). ing.
[0034]
  Further, the base end of the operation lever (98) is provided in the cam portion (98a), and the cam portion (98) is fixed to the lever holding member (104) that is fixed to the dividing base (16a) when the lever (98) is fixed. 98a) is provided to engage and hold, while the lower outer peripheral surface of the cam portion (98a) that contacts the locking member (104) is formed on the cam surface (98b), and the pivot shaft (99) and the cam surface The slide shaft (101) can be moved backward by operating the lever (98) by the difference (ab) between the maximum distance (a) and the minimum distance (b) between (98b). When the dividing table (16a) is expanded, the dividing table (16a) is positioned by engaging the through hole (103a) with the guide shaft (101a), and then the lever (98) is moved. Rotating about the axis (101) to align the long groove portion (103a) with the flat plate portion (101b), and tilting the lever (98) to push the flat plate portion (101b) to the opposite side of the guide member (102). In the projecting state, the flat plate portion (101b) is rotated approximately 90 degrees with respect to the long groove portion (103b), and the rear surface of the flat plate portion (101b) and the opposite side surface (102a) of the guide member (102) are brought into an interference state. After that, when the lever (98) is operated from the tilted position to the standing position, the position of the dividing base (16a) is pressed and fixed to the main body (16b) side by the cam action of the cam surface (98b). To configure There.
[0035]
  As described above, when the use of the dividing table (16a) is expanded, both the positioning and fixing can be performed by operating the single lever (98). Is also very good.
[0036]
  At the time of expansion of the use of the dividing table (16a), the dividing table (16a) is not limited to the positioning of the intermediate part and the lower end part by the guide shaft part (101a) of the slide shaft (101). Positioning is performed by engagement of a positioning pin (105) that projects from the upper side surface of the main body (16b) at the upper end of (16a) and a pin hole on the split base (16a).
[0037]
  Meanwhile, as shown in FIG. 1, a split stand (16a) is formed by folding a bumper (106) at the rear end of the planting case (20) so that the bumper (106) can be freely removed and folded from the bumper (106) at the rear end of the machine body. Even when the split base (16a) is folded, the overall length of the fuselage is prevented and the front / rear balance is kept good. It is configured to ensure stability during movement and transportation of the rice transplanter and to reduce the storage space when stored indoors.
[0038]
  Further, the extension seedling stand (107) having a base end attached to the upper end of the seedling placing stand (16) and extending the tip upward is provided on each split stand (16a) and the main body (16b) via bolts (108). Installed so that the protruding length can be adjusted, and positioned below the uppermost end surface of the fertilizer hopper (109) of the fertilizer section (36) when folding the split base (16a) (position below the line (L) in FIG. 4). By adjusting the extension seedling stand (17) downward, it is possible to mount the rice transplanter on a transport vehicle while minimizing the overall height and mounting it on the vehicle. It is configured to prevent the extension seedling stand from being damaged when stored on the fuselage.
[0039]
  22 shows that a transmission case (110) between planting cases (20) having a rotary case (21) is formed into an inner case (110a) and an outer case (110b) with adjustable widths. Two telescopic fittings that fit the inner and outer cases (110a) and (110b) in a slidable manner, and also divide the planting claw drive shaft (111) inserted into the inner and outer cases (110a) and (110b) into splines. Crop other than paddy rice with the same machine (8-row planting) by forming the shaft (111a) (111b) and reducing the full width of the planting case (20) when folding the seedling stand (16) (Such as crops other than 30 cm strips, such as 33 cm specifications or more), making it unnecessary to remove them during transportation, etc. Are those that you have configured so that.
[0040]
  In this case, only the planting cases (20) on both the left and right sides which are the folding positions (16) are slidably provided so that only the case interval width on the left and right sides is reduced. The case interval width of the case (20) may be reduced evenly.
[0041]
  Further, FIG. 23 and FIG. 24 show a mid-mount structure in which the machine is equipped with a fertilizer hopper (109) of a side fertilizer section (36), and the hopper (109) is located below the driver seat (13). The backrest part (13a) of the driver's seat (13) is formed in a retractable manner that can be rotated forward about the rotation fulcrum (112), and the right and left full width of the driver's seat (13) is formed as a hopper. (109) is formed in a horizontally long bench seat substantially the same as the full width of the left and right, and the driver's seat (13) is also used as the upper protective cover of the hopper (109), shortening the total length of the rice transplanter, The seedling joint and the rear view are improved, and the hopper (109) expands the capacity by effectively utilizing the excess space below the driver's seat (13), and further folds the backrest (13a) to increase the total height of the rice transplanter. Can be loaded on a two-stage car with a short hold To those that also a plurality of ride capable constituted by it as convenient to to transport such, or even a driver's seat of the bench (13).
[0042]
【The invention's effect】
  As is apparent from the above examples, the invention according to claim 1 is a rice transplanter configured such that the folding side seedling stage (16a) can be folded above the seedling stage surface of the seedling stage body (16b), Fixed to the rib (38) of the seedling mount body (16b), and at leastCentralAcross the seedling surface for one lineIn addition, of the seedling mounting base body (16b) when the folding side seedling mounting base (16a) is deployed on the same surface with respect to the seedling mounting base body (16b), adjacent to the folding side seedling mounting base (16a) At the center of the seedling placement surface for at least one strip from the edgeIt is fixed to the two main body side seedling frames (39) and (40) which are arranged substantially parallel to each other and the rib (38) of the folding side seedling mounting table (16a) and straddles at least one seedling mounting surface. The two divided-side seedling frame (41) (42) horizontally arranged in parallel with the two main-body-side seedling frames (39) (40) and the main-body-side rotation fulcrum frame (44) A split-side rotation fulcrum frame (45) that connects the two split-side seedling frame (41) (42), the main-body-side rotation fulcrum frame (44), and a split-side rotation fulcrum frame (45). ) Are connected via cam members (46) (47), (48) and (49).Gate-shapedA rotating frame (50) (51);The main body side rotation fulcrum frame (44) is provided on the upper left and right outer ends of the main body side seedling frame (39) (40), and the division side rotation fulcrum frame (45) It is provided in the upper end part inside the left and right sides of the frames (41) and (42). ThereforeA mechanism such as a rotating frame (50) (51) for folding the seedling mounting table (16) is arranged on the seedling mounting surface side, and operations such as simplification or assembly / disassembly of the rear surface side structure of the seedling mounting table (16) Can be easily improved, the seedling stage (16) can be folded by the rotation of the rotating frames (50) and (51), and the ribs of the seedling frames (39) to (42) The seedling mounting table (16) can be reinforced by the connection with (38).
[Brief description of the drawings]
FIG. 1 is an explanatory side view showing a folding state of a seedling stage.
FIG. 2 is an overall side view of a rice transplanter.
FIG. 3 is an overall plan view of a rice transplanter.
FIG. 4 is an explanatory side view of a planting part.
FIG. 5 is an explanatory view showing a folded state of the seedling stage.
FIG. 6 is an explanatory view showing a state in which the seedling stage is folded and fixed.
FIG. 7 is an explanatory view of the rear surface of the seedling stage.
FIG. 8 is a view for explaining attachment of a seedling support shoe.
FIG. 9 is a side view of the folding mechanism.
FIG. 10 is a side view of the lower part of the folding mechanism.
FIG. 11 is an upper side explanatory view of a folding mechanism.
FIG. 12 is an explanatory view showing folding of the seedling stage.
FIG. 13 is an explanatory front view of a folding fixing part of the folding seedling stage.
FIG. 14 is an explanatory bottom view of a folding fixing part of the folding seedling stage.
FIG. 15 is an explanatory diagram of an expansion fixing part of the seedling stage.
FIG. 16 is an explanatory diagram of an operation lever portion.
FIG. 17 is an explanatory diagram showing a relationship between a slide shaft and an engagement hole.
FIG. 18 is an explanatory view of a positioning guide member.
FIG. 19 is an explanatory plan view of a planting case part.
FIG. 20 is a front explanatory view showing a folded state of the seedling removal plate.
FIG. 21 is an explanatory plan view showing a folded state of the seedling removal plate.
FIG. 22 is an explanatory diagram for reducing the full width of the planting case part.
FIG. 23 is a rear view of a fertilizer hopper disposed below the driver's seat.
FIG. 24 is a side explanatory view of a fertilizer hopper disposed at a position below a driver's seat.
[Explanation of symbols]
(16a) Folding side seedling stand
(16b) Seedling body
(38) Ribs
(39) (40) Main body side seedling frame
(41) (42) Folding side seedling frame
(44) Main body side fulcrum frame
(45) Dividing side pivot point frame
(46) (57) Cam body (cam member)
(48) (49) Cam body (cam member)
(50) (51) Rotating frame

Claims (1)

苗載台本体(16b)の苗載面上方に折畳み側苗載台(16a)を折畳み可能に構成してなる田植機において、
苗載台本体(16b)のリブ(38)に固定し、且つ少なくとも中央側の1条分の苗載面を跨ぎ、さらに苗載台本体(16b)に対し折畳み側苗載台(16a)を同一面状に展開したときの苗載台本体(16b)のうち、折畳み側苗載台(16a)との隣接縁から少なくとも1条分の苗載面より中央側にて略平行に横設する2本の本体側苗台フレーム(39)(40)と、 折畳み側苗載台(16a)のリブ(38)に固定し、且つ少なくとも1条分の苗載面を跨いで略平行に横設する2本の分割側苗台フレーム(41)(42)と、
前記2本の本体側苗台フレーム(39)(40)を連結する本体側回動支点フレーム(44)と、
前記2本の分割側苗台フレーム(41)(42)を連結する分割側回動支点フレーム(45)と、
前記本体側回動支点フレーム(44)と分割側回動支点フレーム(45)とをカム部材(46)(47)・(48)(49)を介して連結する門形状の回動フレーム(50)(51)とを設け、
前記本体側回動支点フレーム(44)は、前記本体側苗台フレーム(39)(40)左右外側の上端部に設けられ、
前記分割側回動支点フレーム(45)は、前記分割側苗台フレーム(41)(42)の左右内側の上端部に設けられていることを特徴とする田植機。
In the rice transplanter constituted so that the folding side seedling stage (16a) can be folded above the seedling stage surface of the seedling stage body (16b),
Seedlings weighing platform fixed to the rib (38) of the body (16b), and techniques straddle one strip portion of seedlings Nomen at least the center side, further seedling mounting base body (16b) to fold the side seedlings weighing platform (16a) Of the seedling stand main body (16b) when they are spread out in the same plane, at least one streak from the adjacent edge to the folding side seedling stand (16a) is arranged substantially parallel to the center side from the seedling placement surface. Fixed to the two main body side seedling frames (39) and (40) and the rib (38) of the folding side seedling mounting table (16a), and across substantially at least one seedling mounting surface, Two split-side seedling frames (41) and (42) to be installed;
A main body side rotation fulcrum frame (44) connecting the two main body side seedling frames (39), (40);
A split-side rotation fulcrum frame (45) connecting the two split-side seedling frame (41) (42);
A portal-shaped rotation frame (50) for connecting the main body side rotation fulcrum frame (44) and the divided side rotation fulcrum frame (45) via cam members (46) (47), (48), (49). ) (51)
The main body side rotation fulcrum frame (44) is provided on the left and right outer upper ends of the main body side seedling frame (39) (40),
The rice transplanter characterized in that the split-side rotation fulcrum frame (45) is provided at the upper left and right inner ends of the split-side seedling frame (41) (42) .
JP2003206296A 2003-08-06 2003-08-06 Rice transplanter Expired - Fee Related JP3640073B2 (en)

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JP19962996A Division JP3487480B2 (en) 1996-07-09 1996-07-09 Rice transplanter seedling placement device

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JP2004231001A Division JP4081463B2 (en) 2004-08-06 2004-08-06 Rice transplanter

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JP3640073B2 true JP3640073B2 (en) 2005-04-20

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JP6736000B2 (en) * 2020-02-14 2020-08-05 みのる産業株式会社 Paddy weeder

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