JP4465803B2

JP4465803B2 - Remaining trunk processing equipment

Info

Publication number: JP4465803B2
Application number: JP2000125908A
Authority: JP
Inventors: 沢良一相
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2000-04-26
Filing date: 2000-04-26
Publication date: 2010-05-26
Anticipated expiration: 2020-04-26
Also published as: JP2001299040A

Description

【０００１】
【発明の属する技術分野】
この発明は、たばこや植木等の残幹を切断する残幹処理装置の改良に関するものである。
【０００２】
【従来技術】
従来のたばこ等の残幹切断装置は、特開平１１−１５５３０５公報や、特開平１１−１８７７４４号公報で示すものがあり、次のように構成されていた。即ち、地表上に直立した残幹を、機体の前方から側方に亘る長い範囲で機体に夫々取り付けた挾持ベルトや、牽引犁や回転刃等の引き抜き機で、まず残幹全体を引き抜き処理し、その後、機体後部の切断処理機まで搬送して短い長さに切断し、その切断した切断残幹を収納容器に収納していた。
【０００３】
【発明が解決しようとする課題】
従来装置は前記のように構成されていて、トラクタの機体前部から側部に残幹引き抜き装置を、機体後部には切断処理機を設けているため、機体の全後長が長くなったり、機体幅が広くなったりし、このため運転操作が面倒になるものである。また、切断処理した残幹を収納する容器が小さいと、何度も容器を取り替えたり、残幹を別の場所に廃棄に行ったりと残幹処理作業の能率が悪かった。
【０００４】
【課題を解決するための手段】
この発明は、従来装置のこのような不具合を解消しようとするものであって、次のような技術的手段を講じた。即ち、請求項１記載の発明は、天井板（２６）と下部軸承部（６５）の後方の左右両側部に設けた後支柱（２９，２９）の上端の細径部に、前方向へ突出する左右一対の上部支枠（３０，３０）の基部パイプ（３１）を取り付け、前記後支柱（２９，２９）の下端には前方向へ突出する左右一対の下部支枠（３２，３２）の後端基部を一体的に取り付け、前記左右の上部支枠（３０,３０）間の上方の部位を左右連結板（４０）で連結し、左右連結枠（４１）の左右両端部に夫々溶接された中空パイプ（４２，４２）を前記左右の後支柱（２９，２９）に挿通し、係止具（４３）で該中空パイプ（４２，４２）の上下方向移動を規制する構成とし、前記左右連結枠（４１）には後方に突出する受金具（４４）を左右方向中央部に設け、該受金具（４４）に操作ハンドルの軸部（４５）を上下方向移動不能で且つ回転自在に取り付け、前記左右連結枠（４１）と下部支枠（３２）との間の後支柱（２９，２９）の部位には、左右一対の移動パイプ（４６，４６）を上下方向摺動自在に取り付け、側面視で略Ｌ字状に折り曲げた主取付枠（４７）の上平面部（４７ａ）を該左右の移動パイプ（４６，４６）に溶接し、主取付枠（４７）の立壁（４７ｂ）の下端に設けた軸（７８）を移動農機の前ヒッチ部に前後方向揺動自在に取り付ける構成とし、前記主取付枠（４７）の左右方向中間部に操作ハンドルの軸部（４５）の下部に形成した伸縮螺子（５２）を挿入する螺子孔金具（５１）を一体に設け、該螺子孔金具（５１）と前ヒッチとの間に油圧シリンダー（７９）を取り付け、回転軸（１）の上部と下部を、前記天井板（２６）と下部軸承部（６５）とに夫々設けたベアリング（２８，２８）で夫々回転自由に支持し、前記下部軸承部（６５）を下から１段目の取付板（２５ａ）と下から２段目の取付板（２５ｂ）との間の回転軸（１）の周りに設け、前記左右の下部支枠（３２，３２）の間を連結する連結支板（６８）の上縁部（６８ａ）と下部軸承部（６５）とを支持枠（６６）で連結し、前記左右連結板（４０）上にエンジン（１４）を搭載し、該エンジン（１４）の駆動力を下方に突出する出力軸（３４）に取り付けた遠心クラッチ（３５）を経て下方の駆動歯車（３６）と該駆動歯車（３６）に噛み合う側方の従動歯車（３７）で減速して回転軸（１）に伝達する構成とし、該回転軸（１）には上下方向に５段となる略等間隔で位置をずらして取付板（２５）を取り付け、該取付板（２５）に回転刃（２）を取付板（２５）の周縁部から突出させて取り付け、前記回転軸（１）を油圧シリンダー（７９）によって１５度の前傾姿勢から４５度の前傾姿勢まで前後揺動可能な構成とし、前記回転軸（１）の周囲の回転刃（２）が接触しない位置にカバー（３）を設け、該カバー（３）の前部に前方開口部（４）を開口し、前記前方開口部（４）近傍の回転刃（２）の回転方向下手側の部位に、天井板（２６）と下部支枠（３２）との間に亘る上下方向の前支柱（３９）を設け、該前支柱（３９）の前記取付板（２５）と略同じ高さ位置で受け刃（６）を取り付ける刃固定板（５３）を溶接し、該刃固定板（５３）に受け刃（６）を着脱自在に取り付け、前記カバー（３）の前方開口部（４）の上部に、残幹の上部を前方開口部（４）に案内する左右一対の残幹入口案内板（５４，５４）を取り付け、該左右の残幹入口案内板（５４，５４）の先端側の間隔を後端側の間隔よりも広く形成し、前記カバー（３）の前方開口部（４）の上方右側には、残幹の上部を回転刃（２）近傍まで案内する内方案内具（５６）を残幹入口案内板（５４，５４）の後方延長方向に延設し、前記カバー（３）の左側の一側方で回転刃（２）の回転下手側となる部位に側方開口部（５）を開口し、該側方開口部（５）の出口部を、上端から下端に亘って次第に外側方へ向かって壁面が遠くなる側方カバー（７）で覆い、該側方カバー（７）を前後の案内立壁（７ａ，７ａ）と側方の傾斜案内壁（７ｂ）とから平面視での断面形状をコ字状に形成し、該側方カバー（７）の下端に平面視でコ字状の排出口（８）を設け、前記傾斜案内壁（７ｂ）の内面に、天井板（２６）を上端とし下端部を排出口（８）から地面側に向けて垂らした平板状のゴム板からなる弾性体（９）を取り付けたことを特徴とする残幹処理装置とした。
【０００５】
請求項２記載の発明は、前記カバー（３）の右外立壁（３ｃ）の下部に、前後方向の上部ヒンジ（１０）を中心として下端部が外方に開口する上手カバー（１１）を設けたことを特徴とする請求項１記載の残幹処理装置とした。
【０００６】
【０００７】
【発明の作用及び効果】
請求項１記載の発明によると、カバー（３）の前方開口部（４）の上部に設けた残幹入口案内板（５４，５４）で残幹を前方開口部（４）に案内し、この残幹入口案内板（５４，５４）の後方延長方向に設けた内方案内具（５６）で、残幹の上部を回転刃（２）まで容易に案内することができる。
そして、伸縮螺子（５２）を回して上下動しない主取付枠（４７）に対して後支柱（２９，２９）を上下移動させ、残幹処理装置の取付高さを調節し、油圧シリンダー（７９）によって回転軸（１）を１５度の前傾姿勢から４５度の前傾姿勢まで前後揺動させ、回動軸（１）の上下方向に５段に設けた回転刃（２）と受け刃（６）とで残幹を切断し、残幹を複数本に短く切断して下方に落下させることができる。
そして、回転刃（２）に持ち回りされる残幹を内方案内具（５６）の裏面側に当てて残幹処理装置内に跳ね返すことができ、残幹が前方開口部（４）から前方外側方に排出されるのを防止できる。
【０００８】
請求項２記載の発明によると、上記請求項１記載の発明の効果に加えて、回転刃（２）による残幹の持ち回りが多い場合や、カバー（３）内の隅部に残幹が詰まる場合、上手カバー（１１）を開口して残幹を右外部に排出することができる。
【０００９】
【００１０】
【発明の実施の形態】
以下、図に基づき、この発明の実施例の形態について説明する。この実施例は、たばこの残幹を主体に、他の細い枝の植木等の幹を切断し排出処理を行なう残幹処理装置に関するもので、以下その内容について説明する。
【００１１】
先ず、全体のレイアウト構成について説明すると、図例では移動農機１７を前後輪１８，１９を有する四輪式農用トラクタとしているが、図示しない歩行型の二輪式歩行トラクタとしていてもよい。図１，図１２で全体の構成について説明すると、移動農機１７であるトラクタ側のエンジン２０下部には、前フレーム２１が前方に向かって突出しており、この突出前端部には枠体である前ヒッチ２２が設けられている。前ヒッチ２２の前端部に残幹処理装置２４の下方部が、図例では、装置の上端が前位となるよう前方傾斜姿勢に取り付けられている。そして、移動農機１７後部にはロータリ耕耘装置２３が取り付けられている。
【００１２】
残幹処理装置２４の上部には、残幹処理装置２４の駆動源であるエンジン１４を搭載しており、残幹処理装置２４は移動農機１７のエンジン２０と関係無く、独立して駆動又は停止可能に構成している。そして、たばこの葉を取り去った残幹で切断作業を説明すると、畝Ｍ上で畝の方向に沿って間隔を開けて植生した直立残幹Ｔを、畝を跨いで走行する移動農機１７の矢印Ｆ方向への前進により１２．５ｃｍから２５ｃｍ程度の長さに切断し、切断した幹部分は下方に落下する。畝Ｍ上に残った残幹根元６３と、畝Ｍ近傍に落下飛散した切断幹Ｓ部分は、移動農機１７後部に取り付けたロータリ耕耘装置２３の駆動耕耘作業により掘削土壌Ｄ中に埋める。
【００１３】
次に、残幹処理装置２４について、具体的に説明する。図例の残幹処理装置２４は、側方視で上下方向の回転軸１を、上端が前側に１５度程度の所定角度傾斜するように前傾姿勢に斜設し、詳細については後述するが、アクチュエータ７９により角度を図１３で示すように、４５度程度まで大きく前後揺動可能としている。この回転軸１には、上下方向に所定間隔ずらせて例えば４段乃至７段程度の間隔で取付板２５を取り付け、この取付板２５には回転刃２を一個または二個取付板２５周縁部から突出するように取り付けている。
【００１４】
回転軸１の上下部は、天井板２６と下部軸承部６５に夫々設けられたベアリング２８，２８により回転自由に支持されている。下部軸承部６５回りについての、詳細構成は後述する。天井板２６や下部軸承部６５の後方両側部には、左右の後支柱２９，２９が残幹処理装置２４の上下端部間に渡って設けられており、その上端の細径部には前方向に夫々突出する左右一対の上部支枠３０，３０の基部パイプ上３１が着脱分解組立て自在に取り付けられている。また、後支柱２９下端には、前方向に夫々突出する左右一対の下部支枠３２，３２の後端基部を溶接等で一体的に取り付けて主フレーム６７を構成している。
【００１５】
該上部支枠３０，３０は、天井板２６の上面で幅方向左右端に取り付けられており、残幹処理装置２４の上端部を支持する上方支持フレームとしている。この左右の上部支枠３０，３０間上方は左右連結板４０で連結され、この左右連結板４０上には、前述したように、装置を独立駆動するためにバーチカル式のエンジン１４を搭載しており、エンジン駆動力は下方に突出する出力軸３４に取り付けられた遠心クラッチ３５を経て、下方の駆動歯車３６とそれに噛み合う側方の従動歯車３７で減速し、減速した駆動力を回転軸１に伝達する。従動歯車３７は、天井板２６から上方に突出する回転軸１の上端部に取り付けられている。
【００１６】
次に、残幹処理装置２４の、下部側の支持フレームについて説明する。前述したように、残幹処理装置２４の背部には、左右の後支柱２９，２９が上下端部間に渡って設けられており、その下端部には前方向に夫々突出する左右一対の下部支枠３２，３２の後端基部が一体溶接されている。この左右の下部支枠３２，３２左右内側間は空間部となっており、該空間部を残幹処理装置２４が前方移動する際に、地面上に植生した直立残幹Ｔの幹部切断後の残幹根元６３部が引っかからずに移動できる、通過空間６４部としている。そして、下部支枠３２，３２は、回転刃２の回転軌跡後方の接当しない位置で、連結支板６８で左右連結されている。連結支板６８は、平板を側面視コ字状に押し曲げた形状の立壁板であって、下縁部６８ｂを下部支枠３２上面に取り付けて、その左右方向中央下方に設けた通過空間６４の天井部としている。図例の下縁部６８ｂは、水平方向の略直線状の縁部としている。該、下縁部６８ｂの左右方向中間部を上方に向かって凹ませると、通過空間６４の天井部を容易に高くすることが可能であり、残幹処理装置２４を直立状としていても、残幹根元６３の切断面と下縁部６８ｂの間に移動時の非接当間隙を設けることができる。
【００１７】
図例において、下部軸承部６５は下方から一段目と２段目の取付板２５，２５間の回転軸１回りに設けられており、この下部軸承部６５と連結支板６８の上縁部６８ａの前後方向間を、支持枠６６で前後連結して、回転軸１の下部を支持して下部側の支持フレームを構成している。下部軸承部６５にはベアリング２８が内装されており、回転軸１の下部細径部６９を回転自在に支持している。下部軸承部６５から下方に回転軸１の下部角軸７２が突出しており、該６角形断面の下部角軸７２に、取付板２５を下端に有した内形６角孔筒のスペーサ７０を挿入しナット７１，７１で固定している。
【００１８】
７３は上補強板であって、連結支板６８の左右両端部前面と下部支枠３２上面間に取り付ける、側面視Ｌ字状の補強板である。７４は下補強板であって、連結支板６８下方位置で、下部支枠３２の内面下部前後方向に取り付ける補強板である。また下部支枠３２前端部には、橇状の接地板７５を取付けている。図例では、下部支枠３２を左右一対設けているが、少なくとも片側あればよい。
【００１９】
以上説明したように、残幹処理装置２４は、装置後方に直立した左右の後支柱２９，２９と、上部支枠３０，３０並びに、支持枠６６と連結支板６８等で支持されている。後支柱２９の上下方向中間部には、左右の後支柱２９，２９を左右一体連結する左右連結枠４１を設けている。左右連結枠４１は、両端部に夫々溶接一体化された中空パイプ４２，４２を後支柱２９に挿通し、ボルトまたはロールピン等の係止具４３で上下方向移動を規制している。この左右連結枠４１には後方に突出する受金具４４を左右方向中央部に設けており、該受金具４４に後述する操作ハンドルの軸部４５を、上下方向移動不能に回転方向は自在に取り付けている。
【００２０】
左右連結枠４１と下部支枠３２間の後支柱２９，２９部には、上下方向摺動自在の移動パイプ４６，４６が左右一対取り付けられ、該左右の移動パイプ４６，４６は主取付枠４７で左右連結されている。主取付枠４７は、鉄板を側面視略Ｌ字状に折り曲げたもので、上平面部４７ａを上記の移動パイプ４６に溶接一体化し、立壁４７ｂ下端の軸７８部を機体１２の前ヒッチ２２部に、前後方向揺動自在に取り付けている。４９は補強板であって、上平面部４７ａと立壁４７ｂと移動パイプ４６間を溶接等で前後方向に連結補強する鉄板である。
【００２１】
該主取付枠４７の左右方向中間に、前述したハンドル軸部４５下部の伸縮ネジ５２を挿入するネジ孔金具５１を一体に設けている。そして、該ネジ孔金具５１と前ヒッチ２２間に油圧シリンダーであるアクチュエータ７９を取付けて残幹処理装置２４を前後揺動調節可能としている。主取付枠４７を移動農機１７の前ヒッチ２２の軸７８に取り付けたあと伸縮ネジ５２を回転すると主取付枠４７は上下動しないから、相対的に後支柱２９，２９が上下移動し、残幹処理装置２４の対機体１２取付け高さを伸縮ネジ５２で上下方向調節することができる。
【００２２】
次に、残幹処理装置２４を支持する装置について、図９，図１１で説明する。
図例では、上下の支持脚８０を、主取付枠４７の左右に一対設けた取付パイプ８６に、ピン８７で着脱可能に取り付けている。左右の支持脚８０は、ターンバックル８８，８８で夫々保持高さを上下方向伸縮移動自在に取り付けている。そして、支持脚８０下部から前後方向に左右のフレーム８９，８９を突出し、前後端部にキヤスター車輪９０，９０．．を取り付けている。９１はステーであって支持脚８０とフレーム８９を溶接等で接続している。作業時にはこの支持脚８０は取外し、作業終了して倉庫等に残幹処理装置２４を保管するに際して、移動農機１７の機体１２の前ヒッチ２２から残幹処理装置２４を外す時、ターンバックル８８，８８を操作して高さを調節して、１人作業として容易に外すことができる。機体１２から外した後は、キャスター車輪９０により残幹処理装置２４を手で押して移動できる。
【００２３】
次に、残幹を切断する切断機構や、その外周を覆う側方カバー等について、具体的に説明する。天井板２６と下部軸承部６５の上下のベアリング２８，２８で軸承される回転軸１は、標準状態では前述したように、側面視上下縦方向で軸の上端が略１５度程度前方傾斜状態に構成されている。この回転軸１には、上下方向に１２５ｍｍ〜２５０ｍｍ程度の略等間隔にずらして４〜７段程度に取付板２５を取り付け、該取付板２５には１個または２個の回転刃２，２を、取付板２５周縁部から外方に突出するように、夫れ夫れボルトやネジ等の締め付け具３８を介して着脱自在に取り付けている。そして、該回転刃２は回転前方側と回転後方側の突出縁部に刃部２ａを有しており、片側の刃部２ａが摩耗したら上下反転して使用可能としている。切断作用側の刃部２ａは略３０度程度の後退角を有しており、平面視で先端突出縁前後面側を略二等辺三角形状としている。この回転刃２付きの回転軸１の周囲には、駆動回転時に回転刃２が接触しない位置にカバー３を取り付けている。
【００２４】
カバー３の前部には前方開口部４を開口して、移動農機１７の前進により直立残幹Ｔが送り込まれる構成とし、また、矢印イ方向に回転軸１が回る場合、左側の一側方で且つ回転刃２，２・・・の回転下手側に側方開口部５を開口し、この側方開口部５に、上端から下端に亘って次第に外側方に向かって壁面を遠くした側方カバー７で側方開口部５の出口部を覆っている。側方カバー７は平面視断面コ字状としており、前後の案内立壁７ａ，７ａと側方の傾斜案内壁７ｂとからなっており、該側方カバー７の下端に平面視コ字状の排出口８を設けている。また、側方の傾斜案内壁７ｂの内面には、前後方向幅一杯で天井板２６部を上端とし、下端部は排出口８から地面側に向かって垂した、ゴム板の弾性体９を取り付けている。図例では、平板状のゴム板としているが、スポンジ等の発泡ゴム板や軟質樹脂剤等から成る平板でもよく、図示しないが、複数に分割された板体や突起物の弾性体９でもよい。また、前後の案内立壁７ａ，７ａに板状または、分割された複数の板体や突起物の弾性体９を設けていてもよい。
【００２５】
カバー３の前方開口部４近傍の回転方向下位側には、天井板２６と下部支枠３２の間に亘って上下方向の前支柱３９が配設され、該前支柱３９に回転軸１の取付板２５と略同高さ位置で対応する、受け刃６を取り付けるための下部開口コ字状の刃固定板５３を溶接等により一体取付けしている。そして、刃固定板５３には受け刃６を同様にボルトやネジ等の締め付け具３８，３８で着脱自在に取付けている。該受け刃６も、回転前位の切断作用側突出縁部に３０度程度の後退角を有した刃部６ａとしており、片側が摩耗すると反転して使用するように、前後突出縁面を対称形としている。この回転刃２と受け刃６を同一の部品として、単に上下反転して組付けることにより、部品管理や製作等のコストダウンを更に図っている。直立残幹Ｔは、回転刃２の刃部２ａと受け刃６の刃部６ａから成る切断装置６１に挾まれて切断される。
【００２６】
図２，図１０で示すように、カバー３の前方開口部４上方には、移動農機１７前進時に直立残幹Ｔ上部を前方開口部４に案内する残幹入口案内板５４，５４が、先端側を広くした八字状に左右一対、丸頭ビス５５，５５で取付けられている。この残幹入口案内板５４は、装置の高さ方向１／３から１／２程度の上部に取り付けていればよく、またその前縁６０は図示のように、装置取付け時に略垂直方向としており、直立残幹Ｔを案内しやすくしている。そして、この残幹入口案内板５４には、センサー７７を左右一対取り付けて、このセンサー７７，７７間に直立残幹Ｔが存在するかどうかを検出して、図示しないＣＰＵに伝えており、例えば、切断装置６１の回転制御や、移動農機１７の走行速度制御や走行操舵制御等に利用することが容易に行なえる。
【００２７】
また、前方開口部４上方右側には内方案内具５６が、平面視で入口案内板５４の略延長方向に延びている。該内方案内具５６は、側面視で取付板２５，２５の上下方向中間部に、上から２本設けられており、直立残幹Ｔの上部を容易に回転刃２近傍まで案内することができる。このように切断装置６１の回転方向直前の上流側にある内方案内具５６は、切断残幹が持ち回りされた場合裏面側で装置内方に跳ね返してやり、切断残幹が前方開口部４から前方に飛び出すのを防止することもできる。これにより装置の上部から遠くに飛散しようとする切断残幹を装置内下方に落とすことができる。
【００２８】
下部内方案内具５６ａは、図２、図９で示すように、上下方向中間部から下方の取付板２５，２５の切断装置６１近傍から、最下部の切断部６２近傍に亘って前方開口４の回転上流側一側壁に取り付けられた棒状の部材であり、移動農機１７の前進に伴い直立残幹Ｔが残幹処理装置２４の前方開口部４から切断装置６１部に案内されるようにしている。この切断装置６部で切断された残幹は、取付板２５に乗って矢印イ方向に持ち回りされようとするが、持ち回ったとしても下部内方案内具５６ａに邪魔されており、前方開口４から自由に飛び出すことを防止している。
【００２９】
前方開口部４のカバー３である右外立壁３ｃ前端部は、カバー板を箱状に構成したモノコック構成として軽量化を図っている。左側壁部は、前述したように前支柱３９で上下補強して入り口部のみ左内方立壁３ａとしている。３ｂは右モノコック構成の右内方立壁であって、回転軸１を中心とした曲面立壁としている。
【００３０】
カバー３の右外立壁３ｃ下部には、図で示すように、前後方向の上部ヒンジ１０を中心として、下端部が外方に開口する上手カバー１１を設けている。上手カバー１１の前後壁１１ａ，１１ｂは平面視コ字状に折り曲げられており、後壁１１ｂ部を固定用ノブ５７でカバー３の背面壁に固定する。即ち、後壁１１ｂには、ヒンジ１０を中心として長孔１１ｃが開口されており、固定用ノブ５７の開閉位置調節で、上手カバー１１の下端開口寸法を開閉調節して、切断残幹の持ち回りが多い場合や隅部に切断残幹が詰る場合、下端の開口から右外部に排出したり、切断残幹の持ち回りが無い場合は閉鎖することができる。
【００３１】
カバー３の前方開口部４下方には、図２，図４で示すように案内棒７６を前方拡開状に左右一対取り付けている。該案内棒で直立残幹Ｔの根元部分を切断装置６１の最下部の切断部６２に案内する。また、後支柱２９，２９側のカバー３背面壁には後部窓１３が設けられている。図例では、後部窓１３は、カバー３壁背面上半部に設けた開口を、パンチングメタル等の小孔を有する鉄板や鉄製の網等からなる覗き壁５８で塞ぎ、その後面に着脱自在の樹脂性の透明板５９を取り付けて、塵埃が作業車側に飛散するのを防止するとともに、内壁が汚れた場合掃除できるようにしている。この後部窓１３は、残幹処理装置を移動農機１７前部に取り付けて前方に向かって機体１２を走行して切断作業を行なう場合、残幹処理装置の前方部をこの後部窓１３からカバー３の前方開口部４を経て、前方に直立する直立残幹Ｔの接近位置を運転者が直接確認しながら、機体１２の操舵を左右操作して前進することができ、運転操作が容易となる。
【００３２】
次に、残幹処理装置２４の上部に取り付けるエンジン１４の操作について、説明する。エンジン１４にはリコイルスタータ８１が内装され、機体１２側の操縦者近傍に配設された握り８２とリコイルスタータ８１間をロープ８３で連結しており、操縦者が握り８２を引っぱることにより作業装置側のエンジン１４を始動することができる。８４は支枠、８５はロープ８３を安定案内する転輪である。エンジン１４の回転を操作するスロットルレバー１５や停止スイッチ１６を運転者近傍とエンジン１４部に設けているので、走行作業時に直立残幹Ｔの有無や密度をセンサー７７で検出し、直立残幹Ｔが存在しない場合自動的にエンジン１４の不要な高速回転を制御して燃費のコストダウンを図れる。また、低速回転とすると遠心クラッチ３５の作用により、回転軸１を駆動しないから静かであり、安全である。また、回転刃２廻りに固いものを噛み込んだ際は、すぐに独立したエンジン１４を運転者部とエンジン１４近傍部の外部と、複数個所で手動により停止操作でき、安全性向上や破損防止を容易に図ることができる。
【００３３】
全体側面図で示すように、移動農機１７の機体前部に残幹切断装置２４をアクチュエータ７９により傾斜調節して取付けし、機体後部に３点リンク装置を介してロータリ耕耘装置を昇降自在に取付けているので、畝Ｍを跨いだ状態で機体前部の残幹切断装置２４を畝上に接地板７５が略接地する位置まで操作ハンドルを回転して残幹切断装置２４の高さを調節し、直立残幹Ｔの切断長を長短調節可能で上端側から先に切断処理をし畝谷部に落下させ、この落下した切断残幹を後続のロータリ耕耘装置２３により同時に耕耘作業をすることができる。即ち、圃場を水田として使用する場合、水を張って代掻きを行なうが、この場合残幹を長くしてやると、残幹は土壌中に保持されて水面近くに浮き上がることが少なく、また、切断面を残幹の軸方向に対し略直角方向に切断しており、切断面が鋭く尖っていないので、作業者が後作業として圃場内を歩行しても安全である。そして、畑として圃場を使う場合は、残幹を短く切断してやり、水分の少ない土壌中でも微生物が侵入する切断面の数を増して腐食を容易とする。このように、直立残幹Ｔの切断長を、次工程の作業に応じて最適状態に変更容易として、耕耘作業を行なうことができる。
【図面の簡単な説明】
【図１】機体前部に、装置を取り付けた部分断側面図である。
【図２】図１の要部拡大側断面図である。
【図３】要部下部フレーム部の、側断面図である。
【図４】図３の平面断面図である。
【図５】図３の底面図である。
【図６】切断装置上部の、要部拡大側断面図である。
【図７】要部全体の、正面側面図である。
【図８】要部全体の、背面図である。
【図９】切断装置中間部の、要部拡大平断面図である。
【図１０】切断装置上部の、要部拡大平断面図である。
【図１１】別要部の、支持脚取付時の全体側面図である。
【図１２】移動農機と作業機を含んだ、全体側面図である。
【図１３】機体前部に取り付けた装置の姿勢調節を示す、側面図である。
【符号の説明】
１回転軸
２回転刃
２ａ刃部
３カバー
４前方開口部
６受け刃
６ａ刃部
１７移動農機
２４残幹処理装置
５４残幹入口案内板
５６ａ下部内方案内板
６１切断装置
８０支持脚[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an improvement of a remaining trunk processing apparatus that cuts remaining trunks such as tobacco and planted trees.
[0002]
[Prior art]
  Conventional trunk cutting devices such as cigarettes are disclosed in JP-A-11-155305 and JP-A-11-187744, and are configured as follows. In other words, the remaining trunk upright on the ground surface is first drawn out with a holding belt attached to the aircraft in a long range from the front to the side of the aircraft, and with a puller such as a towing rod or rotary blade. Then, it was transported to a cutting processing machine at the rear of the machine body and cut into a short length, and the cut cutting trunk was stored in a storage container.
[0003]
[Problems to be solved by the invention]
  The conventional device is configured as described above, and since the remaining trunk extraction device is provided from the front part of the tractor to the side, and the cutting device is provided at the rear part of the tractor, the total rear length of the fuselage is increased, The width of the fuselage becomes wider, which makes the driving operation cumbersome. In addition, if the container for storing the cut trunk was small, the efficiency of the trunk treatment work was poor, such as changing the container many times or discarding the trunk to another place.
[0004]
[Means for Solving the Problems]
  The present invention is intended to solve such problems of the conventional apparatus, and has taken the following technical means. That is, the invention according to claim 1A pair of left and right upper support frames (30, 30) projecting forward in the narrow diameter portions at the upper ends of the rear columns (29, 29) provided on the left and right sides of the ceiling plate (26) and the lower bearing portion (65). 30) a base pipe (31) is attached, and rear end bases of a pair of left and right lower support frames (32, 32) protruding forward are integrally attached to the lower ends of the rear struts (29, 29), The upper parts between the left and right upper support frames (30, 30) are connected by the left and right connecting plates (40), and the hollow pipes (42, 42) welded to the left and right end portions of the left and right connecting frames (41), respectively. The left and right rear struts (29, 29) are inserted, and the vertical movement of the hollow pipes (42, 42) is restricted by the locking tool (43). The left and right connecting frames (41) protrude rearward. A receiving bracket (44) is provided at the center in the left-right direction, and the shaft portion of the operating handle is attached to the receiving bracket (44). (45) is attached to the rear strut (29, 29) between the left and right connecting frames (41) and the lower support frame (32) in a pair of left and right moving pipes. (46, 46) is slidably attached in the vertical direction, and the upper flat portion (47a) of the main attachment frame (47) bent in a substantially L shape in side view is welded to the left and right moving pipes (46, 46). The shaft (78) provided at the lower end of the standing wall (47b) of the main attachment frame (47) is attached to the front hitch portion of the mobile agricultural machine so as to be swingable in the front-rear direction, and the left and right direction of the main attachment frame (47). A screw hole fitting (51) for inserting an expansion / contraction screw (52) formed at the lower portion of the shaft portion (45) of the operation handle is integrally provided at an intermediate portion, and a hydraulic pressure is provided between the screw hole fitting (51) and the front hitch. Install the cylinder (79) and place the top and bottom of the rotating shaft (1) A bearing (28, 28) provided on each of the plate (26) and the lower bearing portion (65) is rotatably supported, and the lower bearing portion (65) is attached to the first mounting plate (25a) from the bottom. The upper edge of the connecting support plate (68) provided around the rotating shaft (1) between the lower mounting plate (25b) from the bottom and connecting the left and right lower support frames (32, 32). The portion (68a) and the lower bearing portion (65) are connected by a support frame (66), and the engine (14) is mounted on the left and right connecting plates (40), and the driving force of the engine (14) is lowered downward. The rotary shaft (1) is decelerated by a lower drive gear (36) and a side driven gear (37) meshing with the drive gear (36) through a centrifugal clutch (35) attached to the projecting output shaft (34). The rotary shaft (1) is displaced at substantially equal intervals of 5 steps in the vertical direction. Attached plate (25) is attached, and rotating blade (2) is attached to the attaching plate (25) so as to protrude from the peripheral edge of attaching plate (25), and the rotating shaft (1) is attached 15 degrees by a hydraulic cylinder (79). The cover (3) is provided at a position where the rotary blade (2) around the rotary shaft (1) does not come into contact with the cover (3). ) At the front of the front opening (4), and a ceiling plate (26) and a lower support frame (32) at the lower side in the rotational direction of the rotary blade (2) in the vicinity of the front opening (4). And a blade fixing plate (53) for mounting the receiving blade (6) at substantially the same height as the mounting plate (25) of the front column (39). The receiving blade (6) is detachably attached to the blade fixing plate (53), and the front opening (4) of the cover (3) is welded. A pair of left and right remaining trunk inlet guide plates (54, 54) for guiding the upper portion of the remaining trunk to the front opening (4) is attached to the upper portion of the left trunk trunk guide plate (54, 54). An inward guide for guiding the upper part of the remaining trunk to the vicinity of the rotary blade (2) on the upper right side of the front opening (4) of the cover (3). The tool (56) is extended in the rearward extension direction of the remaining trunk entrance guide plate (54, 54), and is located on the side of the left side of the cover (3) on the lower rotation side of the rotary blade (2). The side opening (5) is opened, and the outlet of the side opening (5) is covered with a side cover (7) whose wall surface is gradually distant from the upper end to the lower end toward the outer side. The side cover (7) is formed into a U-shaped cross-sectional shape in plan view from the front and rear guide standing walls (7a, 7a) and the side inclined guide walls (7b), A U-shaped discharge port (8) in plan view is provided at the lower end of the side cover (7), and the ceiling plate (26) is the upper end and the lower end is the discharge port (8) on the inner surface of the inclined guide wall (7b). An elastic body (9) made of a flat rubber plate suspended from the ground toward the ground was attached.This is a remaining trunk processing apparatus.
[0005]
  The invention according to claim 2An upper cover (11) having a lower end opened outwardly about the upper hinge (10) in the front-rear direction is provided at the lower part of the right standing wall (3c) of the cover (3).The remaining trunk processing equipment according to claim 1,Anddid.
[0006]
[0007]
[Action and effect of the invention]
  ContractInvention of Claim 1according to,The remaining trunk is guided to the front opening (4) by a remaining trunk inlet guide plate (54, 54) provided at the upper part of the front opening (4) of the cover (3), and the remaining trunk inlet guide plate (54, 54). ) Can be easily guided to the rotary blade (2) by the inner guide (56) provided in the rearward extension direction.
  Then, by rotating the expansion and contraction screw (52), the rear struts (29, 29) are moved up and down relative to the main mounting frame (47) that does not move up and down, the mounting height of the remaining stem processing device is adjusted, and the hydraulic cylinder (79 ), The rotary shaft (1) is swung back and forth from a 15-degree forward tilt posture to a 45-degree forward tilt posture, and the rotary blade (2) and the receiving blade provided in five stages in the vertical direction of the rotary shaft (1) In (6), the remaining trunk can be cut, and the remaining trunk can be cut into a plurality of pieces and dropped downward.
  Then, the remaining stem carried around by the rotary blade (2) can be bounced back into the remaining stem processing device by being applied to the back side of the inner guide (56), and the remaining stem can be moved forward from the front opening (4). Can be prevented.
[0008]
  Invention of Claim 2according to,In addition to the effect of the first aspect of the present invention, the upper cover (11) is opened when the remaining trunk is carried around by the rotary blade (2) or when the remaining trunk is clogged at the corner in the cover (3). The remaining trunk can then be discharged to the right outside.
[0009]
[0010]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described with reference to the drawings. This embodiment relates to a residual trunk processing apparatus that mainly performs the residual processing of cigarettes, cuts the trunk of other thin branches such as planted trees, and performs discharge processing, and the contents thereof will be described below.
[0011]
  First, the overall layout configuration will be described. In the example shown in the figure, the mobile agricultural machine 17 is a four-wheel agricultural tractor having front and rear wheels 18 and 19, but may be a walking two-wheeled walking tractor (not shown). 1 and 12, the front frame 21 projects forward from the lower part of the tractor-side engine 20 that is the mobile agricultural machine 17, and the front end of the projection is a frame body. A hitch 22 is provided. The lower portion of the remaining trunk processing device 24 is attached to the front end portion of the front hitch 22 and in the illustrated example, is attached in a forward inclined posture so that the upper end of the device is in the front position. A rotary tiller 23 is attached to the rear of the mobile agricultural machine 17.
[0012]
  An engine 14 that is a drive source of the residual stem processing device 24 is mounted on the upper portion of the residual stem processing device 24, and the residual stem processing device 24 is driven or stopped independently of the engine 20 of the mobile agricultural machine 17. It is configured as possible. Then, the cutting work will be described with the remaining trunk from which the tobacco leaves have been removed. The arrow of the mobile agricultural machine 17 that travels across the fence on the upright remaining trunk T that has been vegetated on the fence M along the direction of the fence. By advancing in the F direction, it is cut to a length of about 12.5 cm to 25 cm, and the cut trunk portion falls downward. The remaining trunk root 63 remaining on the ridge M and the section of the cut trunk S that has fallen and scattered in the vicinity of the ridge M are buried in the excavated soil D by the drive cultivating work of the rotary cultivator 23 attached to the rear part of the mobile agricultural machine 17.
[0013]
  Next, the remaining trunk processing device 24 will be specifically described. The remaining trunk processing device 24 shown in the figure has the rotary shaft 1 in the vertical direction in a side view obliquely installed in a forward inclined posture so that the upper end is inclined at a predetermined angle of about 15 degrees toward the front side, details of which will be described later. As shown in FIG. 13, the actuator 79 can swing back and forth greatly up to about 45 degrees. Attaching plate 25 is attached to this rotating shaft 1 at a predetermined interval in the vertical direction, for example, at intervals of about 4 to 7 steps. One or two rotating blades 2 are attached to this attaching plate 25 from the periphery of attaching plate 25. It is attached to protrude.
[0014]
  The upper and lower portions of the rotary shaft 1 are rotatably supported by bearings 28 and 28 provided on the ceiling plate 26 and the lower bearing portion 65, respectively. The detailed configuration about the lower bearing portion 65 will be described later. Left and right rear struts 29 and 29 are provided between the upper and lower ends of the remaining stem processing device 24 on both sides of the ceiling plate 26 and the lower bearing portion 65, and a narrow diameter portion at the upper end thereof is provided at the front. A base pipe top 31 of a pair of left and right upper support frames 30, 30 protruding in the direction is attached so as to be freely detachable and disassembled. A main frame 67 is configured by integrally attaching rear end bases of a pair of left and right lower support frames 32, 32 projecting forward in the rear column 29 by welding or the like.
[0015]
  The upper support frames 30, 30 are attached to the left and right ends in the width direction on the upper surface of the ceiling plate 26, and serve as upper support frames that support the upper end portion of the remaining trunk processing device 24. The upper part between the left and right upper support frames 30 and 30 is connected by a left and right connecting plate 40. On the left and right connecting plate 40, as described above, a vertical engine 14 is mounted to drive the device independently. The engine driving force is decelerated by a lower driving gear 36 and a side driven gear 37 meshing with the lower driving gear 36 through a centrifugal clutch 35 attached to an output shaft 34 protruding downward, and the reduced driving force is applied to the rotary shaft 1. introduce. The driven gear 37 is attached to the upper end portion of the rotating shaft 1 protruding upward from the ceiling plate 26.
[0016]
  Next, the lower side support frame of the remaining trunk processing device 24 will be described. As described above, the left and right rear struts 29, 29 are provided between the upper and lower end portions on the back portion of the remaining trunk processing device 24, and a pair of left and right lower portions projecting forward in the lower end portions. The rear end bases of the support frames 32, 32 are integrally welded. A space is formed between the left and right lower support frames 32 and the left and right inner sides. When the remaining stem processing device 24 moves forward in the space, the stem of the upright remaining trunk T vegetated on the ground is cut. The remaining trunk base 63 part can be moved without being caught. The lower support frames 32, 32 are connected to each other by a connection support plate 68 at a position where the lower blades 32, 32 are not in contact with each other behind the rotation locus of the rotary blade 2. The connecting support plate 68 is an upright wall plate that is formed by pushing and bending a flat plate in a U-shape when viewed from the side. The ceiling part. The lower edge portion 68b of the illustrated example is a substantially linear edge portion in the horizontal direction. If the intermediate portion in the left-right direction of the lower edge portion 68b is recessed upward, the ceiling portion of the passage space 64 can be easily raised, and even if the remaining trunk processing device 24 is upright, A non-contact gap during movement can be provided between the cut surface of the trunk root 63 and the lower edge portion 68b.
[0017]
  In the illustrated example, the lower bearing portion 65 is provided around the rotary shaft 1 between the first and second mounting plates 25, 25 from below, and the lower bearing portion 65 and the upper edge portion 68a of the connecting support plate 68 are provided. The front and rear directions are connected by a support frame 66 to support the lower part of the rotary shaft 1 to form a lower support frame. A bearing 28 is housed in the lower bearing portion 65, and a lower narrow diameter portion 69 of the rotary shaft 1 is rotatably supported. A lower angular shaft 72 of the rotary shaft 1 projects downward from the lower bearing portion 65, and an inner hexagonal cylindrical spacer 70 having a mounting plate 25 at the lower end is inserted into the lower angular shaft 72 of the hexagonal cross section. The nuts 71 and 71 are fixed.
[0018]
  Reference numeral 73 denotes an upper reinforcing plate which is an L-shaped reinforcing plate attached between the front surfaces of the left and right ends of the connecting support plate 68 and the upper surface of the lower support frame 32. Reference numeral 74 denotes a lower reinforcing plate, which is a reinforcing plate attached to the lower side of the inner surface of the lower support frame 32 at a position below the connecting support plate 68. A hook-shaped ground plate 75 is attached to the front end of the lower support frame 32. In the illustrated example, a pair of left and right lower support frames 32 are provided, but at least one side may be provided.
[0019]
  As described above, the remaining trunk processing device 24 is supported by the left and right rear struts 29, 29 upright at the rear of the device, the upper support frames 30, 30, the support frame 66, the connecting support plate 68, and the like. A left and right connecting frame 41 that connects the left and right rear struts 29, 29 integrally with each other is provided at an intermediate portion in the vertical direction of the rear strut 29. The left and right connecting frames 41 are inserted into the rear support column 29 through hollow pipes 42 and 42 which are welded and integrated at both ends, respectively, and the vertical movement is restricted by a locking tool 43 such as a bolt or a roll pin. The left and right connecting frame 41 is provided with a receiving bracket 44 projecting rearward in the center in the left-right direction, and a shaft portion 45 of an operation handle, which will be described later, is attached to the receiving bracket 44 so that the rotating direction is freely movable. ing.
[0020]
  A pair of left and right movable pipes 46, 46 are attached to the rear struts 29, 29 between the left and right connecting frames 41 and the lower support frame 32, and the left and right movable pipes 46, 46 are connected to the main mounting frame 47. It is connected at right and left. The main mounting frame 47 is formed by bending an iron plate into a substantially L shape when viewed from the side. The upper flat portion 47a is welded and integrated with the moving pipe 46, and the shaft 78 portion at the lower end of the standing wall 47b is connected to the front hitch portion 22 of the airframe 12. In addition, it is swingably attached in the front-rear direction. Reference numeral 49 denotes a reinforcing plate, which is an iron plate that connects and reinforces the upper flat portion 47a, the standing wall 47b, and the moving pipe 46 in the front-rear direction by welding or the like.
[0021]
  In the middle of the main mounting frame 47 in the left-right direction, a screw hole fitting 51 for inserting the telescopic screw 52 below the handle shaft 45 is integrally provided. An actuator 79, which is a hydraulic cylinder, is attached between the screw hole fitting 51 and the front hitch 22, so that the remaining trunk processing device 24 can be adjusted to swing back and forth. When the telescopic screw 52 is rotated after the main attachment frame 47 is attached to the shaft 78 of the front hitch 22 of the mobile agricultural machine 17, the main attachment frame 47 does not move up and down, so the rear struts 29 and 29 move up and down relatively, and the remaining trunk The mounting height of the processing device 24 with respect to the machine body 12 can be adjusted in the vertical direction with the telescopic screw 52.
[0022]
  Next, an apparatus for supporting the remaining trunk processing apparatus 24 will be described with reference to FIGS.
  In the illustrated example, the upper and lower support legs 80 are detachably attached to the attachment pipes 86 provided on the left and right sides of the main attachment frame 47 with pins 87. The left and right support legs 80 are attached by turnbuckles 88, 88 so that their holding heights can be expanded and contracted in the vertical direction. Then, left and right frames 89, 89 project from the lower part of the support leg 80 in the front-rear direction, and caster wheels 90, 90. . Is attached. Reference numeral 91 denotes a stay that connects the support leg 80 and the frame 89 by welding or the like. At the time of work, this support leg 80 is removed, and when the work trunk 24 is stored in a warehouse or the like after the work is finished, the turnbuckle 88, The height can be adjusted by operating 88, and it can be easily removed as one person's work. After being removed from the machine body 12, the remaining trunk processing device 24 can be pushed and moved by the caster wheels 90 by hand.
[0023]
  Next, a cutting mechanism that cuts the remaining trunk, a side cover that covers the outer periphery, and the like will be specifically described. As described above, the rotating shaft 1 that is supported by the upper and lower bearings 28 and 28 of the ceiling plate 26 and the lower bearing portion 65 is inclined forward by about 15 degrees in the vertical direction in the side view as described above. It is configured. Attaching plate 25 is attached to this rotating shaft 1 at approximately equal intervals of about 125 mm to 250 mm in the vertical direction, and attached to about 4 to 7 stages, and one or two rotary blades 2, 2 are attached to the attaching plate 25. Are detachably attached via a fastening tool 38 such as a bolt or a screw so as to protrude outward from the peripheral edge of the mounting plate 25. And this rotary blade 2 has the blade part 2a in the protrusion edge part of the rotation front side and the rotation back side, and when the blade part 2a of one side is worn, it can be reversed upside down and can be used. The cutting portion 2a on the cutting action side has a receding angle of about 30 degrees, and the front and rear surface sides of the tip protruding edge have a substantially isosceles triangle shape in plan view. A cover 3 is attached around the rotary shaft 1 with the rotary blade 2 at a position where the rotary blade 2 does not contact during driving rotation.
[0024]
  A front opening 4 is opened at the front of the cover 3 so that the upright remaining trunk T is fed by the advance of the mobile agricultural machine 17, and when the rotary shaft 1 rotates in the direction of arrow A, one side on the left side Further, a side opening 5 is opened on the lower rotation side of the rotary blades 2, 2,..., And the side wall is gradually moved outward from the upper end to the lower end. A cover 7 covers the outlet of the side opening 5. The side cover 7 has a U-shaped cross section in plan view, and includes front and rear guide standing walls 7a and 7a and side inclined guide walls 7b. An outlet 8 is provided. A rubber plate elastic body 9 is attached to the inner surface of the side inclined guide wall 7b. ing. In the illustrated example, a flat rubber plate is used. However, a foamed rubber plate such as sponge or a flat plate made of a soft resin agent may be used. . Further, the front and rear guide standing walls 7a, 7a may be provided with a plate-like or divided plurality of plate bodies and elastic bodies 9 of protrusions.
[0025]
  A front support 39 in the vertical direction is disposed between the ceiling plate 26 and the lower support frame 32 on the lower side in the rotation direction near the front opening 4 of the cover 3, and the rotary shaft 1 is attached to the front support 39. A lower-fixed U-shaped blade fixing plate 53 for mounting the receiving blade 6 corresponding to the plate 25 at substantially the same height is integrally attached by welding or the like. Similarly, the receiving blade 6 is detachably attached to the blade fixing plate 53 with fastening tools 38, 38 such as bolts and screws. The receiving blade 6 also has a blade portion 6a having a receding angle of about 30 degrees at the cutting action side protruding edge portion in front of the rotation, and the front and rear protruding edge surfaces are symmetrical so as to be reversed and used when one side is worn. It is shaped. By assembling the rotary blade 2 and the receiving blade 6 as the same component by simply turning them upside down, cost reduction such as component management and production is further achieved. The upright remaining trunk T is sandwiched and cut by a cutting device 61 including the blade portion 2 a of the rotary blade 2 and the blade portion 6 a of the receiving blade 6.
[0026]
  As shown in FIGS. 2 and 10, above the front opening 4 of the cover 3, there are remaining trunk entrance guide plates 54 and 54 that guide the upper part of the upright remaining trunk T to the front opening 4 when the mobile agricultural machine 17 moves forward. A pair of left and right round head screws 55, 55 are attached in an eight-letter shape with a wide side. The remaining trunk entrance guide plate 54 only needs to be attached to the upper part of about 1/3 to 1/2 of the height direction of the apparatus, and its front edge 60 is substantially vertical when the apparatus is attached as shown in the figure. This makes it easy to guide the upright trunk T. A pair of left and right sensors 77 are attached to the remaining trunk entrance guide plate 54 to detect whether an upright remaining trunk T is present between the sensors 77 and 77 and notify a CPU (not shown). It can be easily used for rotation control of the cutting device 61, travel speed control, travel steering control, and the like of the mobile agricultural machine 17.
[0027]
  In addition, an inward guide 56 extends in a substantially extending direction of the entrance guide plate 54 in a plan view on the upper right side of the front opening 4. The two inward guides 56 are provided from the top in the middle in the vertical direction of the mounting plates 25, 25 in a side view, and can easily guide the upper part of the upright trunk T to the vicinity of the rotary blade 2. it can. In this way, the inward guide 56 on the upstream side immediately before the cutting device 61 in the rotation direction bounces back toward the inside of the device on the back side when the cutting residual trunk is carried around. It can also be prevented from jumping forward. As a result, it is possible to drop a cutting trunk that is about to scatter far away from the upper part of the apparatus downward in the apparatus.
[0028]
  As shown in FIGS. 2 and 9, the lower inward guide 56 a has a front opening 4 that extends from the vicinity of the cutting device 61 of the mounting plates 25, 25 below the intermediate portion in the vertical direction to the vicinity of the lowermost cutting portion 62. It is a rod-like member attached to one side wall on the upstream side of the rotation so that the upright remaining trunk T is guided from the front opening 4 of the remaining trunk processing device 24 to the cutting device 61 as the mobile agricultural machine 17 advances. Yes. The remaining trunk cut by the cutting device 6 is about to be carried around in the direction of the arrow B on the mounting plate 25, but even if it is carried around, it is obstructed by the lower inner guide 56a, and the front opening 4 To prevent it from jumping out freely.
[0029]
  The front end portion of the right upright wall 3c, which is the cover 3 of the front opening 4, is lightened as a monocoque configuration in which the cover plate is configured in a box shape. As described above, the left side wall portion is vertically reinforced by the front support column 39, and only the entrance portion is the left inward standing wall 3a. Reference numeral 3b denotes a right inward standing wall having a right monocoque structure, which is a curved standing wall with the rotation axis 1 as the center.
[0030]
  As shown in the drawing, an upper cover 11 having a lower end opened outward is provided at the lower portion of the right outer wall 3c of the cover 3 with the upper hinge 10 in the front-rear direction as a center. The front and rear walls 11 a and 11 b of the upper cover 11 are bent in a U shape in plan view, and the rear wall 11 b portion is fixed to the back wall of the cover 3 with a fixing knob 57. That is, a long hole 11c is opened in the rear wall 11b with the hinge 10 as the center. By adjusting the opening / closing position of the fixing knob 57, the lower end opening size of the upper cover 11 is adjusted to open / close. If there is a lot of cut or if the remaining cut trunk is clogged in the corner, it can be discharged from the opening at the lower end to the right outside, or if the cut remaining trunk is not carried around, it can be closed.
[0031]
  A pair of left and right guide rods 76 are attached to the lower side of the front opening 4 of the cover 3 as shown in FIGS. The root portion of the upright remaining trunk T is guided to the lowermost cutting portion 62 of the cutting device 61 by the guide rod. Further, a rear window 13 is provided on the back wall of the cover 3 on the side of the rear columns 29 and 29. In the illustrated example, the rear window 13 closes the opening provided in the upper half of the back surface of the cover 3 with a peeping wall 58 made of an iron plate having a small hole such as punching metal or an iron net, and is detachable on the rear surface. A resinous transparent plate 59 is attached to prevent dust from scattering to the work vehicle side, and to be cleaned when the inner wall is dirty. This rear window 13 covers the front part of the remaining trunk processing device from the rear window 13 when the remaining trunk processing device is attached to the front portion of the mobile agricultural machine 17 and travels forward through the machine body 12 for cutting work. Through the front opening 4, the driver can confirm the approach position of the upright remaining trunk T standing straight forward, and can move forward by steering the airframe 12 left and right, thereby facilitating the driving operation.
[0032]
  Next, the operation of the engine 14 attached to the upper part of the remaining trunk processing device 24 will be described. The engine 14 is provided with a recoil starter 81, and a rope 82 is connected between the grip 82 disposed in the vicinity of the operator on the side of the aircraft body 12 and the recoil starter 81. The side engine 14 can be started. Reference numeral 84 denotes a support frame, and 85 denotes a wheel for stably guiding the rope 83. Since the throttle lever 15 and the stop switch 16 for operating the rotation of the engine 14 are provided in the vicinity of the driver and the engine 14 portion, the presence / absence and density of the upright remaining trunk T is detected by the sensor 77 during traveling work, and the upright remaining trunk T When there is no engine, the unnecessary high-speed rotation of the engine 14 is automatically controlled to reduce the fuel consumption cost. Further, when the rotation is low speed, the rotary shaft 1 is not driven by the action of the centrifugal clutch 35, so that it is quiet and safe. In addition, when a hard object is bitten around the rotary blade 2, the independent engine 14 can be immediately stopped manually at the driver part and the outside of the engine 14 at a plurality of locations, improving safety and preventing damage. Can be easily achieved.
[0033]
  As shown in the overall side view, the remaining trunk cutting device 24 is attached to the front of the machine body of the mobile agricultural machine 17 by adjusting the inclination by an actuator 79, and the rotary tiller is attached to the rear part of the machine through a three-point link device so as to be movable up and down. Therefore, the height of the remaining trunk cutting device 24 is adjusted by rotating the operation handle of the remaining trunk cutting device 24 at the front of the aircraft to the position where the grounding plate 75 substantially contacts the upper surface of the aircraft while straddling the rod M. The cutting length of the upright remaining trunk T can be adjusted to be short and long, and the cutting process is performed first from the upper end side and dropped into the trough, and the dropped cutting trunk is simultaneously plowed by the subsequent rotary tilling device 23. it can. In other words, when using the field as a paddy field, plowing is performed by spreading water.In this case, if the remaining trunk is lengthened, the remaining trunk is held in the soil and rarely floats near the water surface, and the cut surface is removed. Since it is cut in a direction substantially perpendicular to the axial direction of the remaining trunk and the cut surface is not sharp and sharp, it is safe for the operator to walk in the field as a post-work. When a farm is used as a field, the remaining trunk is cut short, and the number of cut surfaces into which microorganisms invade is increased even in soil with low moisture to facilitate corrosion. Thus, the tilling work can be performed by making it easy to change the cutting length of the upright remaining trunk T to the optimum state in accordance with the work of the next process.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view in which a device is attached to a front part of a machine body.
FIG. 2 is an enlarged side cross-sectional view of the main part of FIG.
FIG. 3 is a side sectional view of a main part lower frame part.
4 is a plan sectional view of FIG. 3. FIG.
FIG. 5 is a bottom view of FIG. 3;
FIG. 6 is an enlarged side cross-sectional view of the main part of the upper part of the cutting device.
FIG. 7 is a front side view of the entire main part.
FIG. 8 is a rear view of the entire main part.
FIG. 9 is an enlarged plan cross-sectional view of a main part of an intermediate part of the cutting device.
FIG. 10 is an enlarged plan sectional view of a main part of the upper part of the cutting device.
FIG. 11 is an overall side view of another main part when the support leg is attached.
FIG. 12 is an overall side view including a mobile agricultural machine and a work machine.
FIG. 13 is a side view showing attitude adjustment of the device attached to the front of the airframe.
[Explanation of symbols]
  1 Rotating shaft
  2 Rotating blade
  2a Blade
  3 Cover
  4 Front opening
  6 Receiving blade
  6a Blade
  17 Mobile farm machine
  24 Remaining trunk processing equipment
  54 Remaining trunk entrance guide board
  56a Lower inward guide plate
  61 Cutting device
  80 support legs

Claims

A pair of left and right upper support frames (30, 30) projecting forward in the narrow diameter portions at the upper ends of the rear columns (29, 29) provided on the left and right sides of the ceiling plate (26) and the lower bearing portion (65). 30) a base pipe (31) is attached, and rear end bases of a pair of left and right lower support frames (32, 32) protruding forward are integrally attached to the lower ends of the rear struts (29, 29), The upper parts between the left and right upper support frames (30, 30) are connected by the left and right connecting plates (40), and the hollow pipes (42, 42) welded to the left and right end portions of the left and right connecting frames (41), respectively. The left and right rear struts (29, 29) are inserted, and the vertical movement of the hollow pipes (42, 42) is restricted by the locking tool (43). The left and right connecting frames (41) protrude rearward. A receiving bracket (44) is provided at the center in the left-right direction, and the shaft portion of the operating handle is attached to the receiving bracket (44). (45) is attached to the rear strut (29, 29) between the left and right connecting frames (41) and the lower support frame (32) in a pair of left and right moving pipes. (46, 46) is slidably attached in the vertical direction, and the upper flat portion (47a) of the main attachment frame (47) bent in a substantially L shape in side view is welded to the left and right moving pipes (46, 46). The shaft (78) provided at the lower end of the standing wall (47b) of the main attachment frame (47) is attached to the front hitch portion of the mobile agricultural machine so as to be swingable in the front-rear direction, and the left and right direction of the main attachment frame (47). A screw hole fitting (51) for inserting an expansion / contraction screw (52) formed at the lower portion of the shaft portion (45) of the operation handle is integrally provided at an intermediate portion, and a hydraulic pressure is provided between the screw hole fitting (51) and the front hitch. Install the cylinder (79) and place the top and bottom of the rotating shaft (1) A bearing (28, 28) provided on each of the plate (26) and the lower bearing portion (65) is rotatably supported, and the lower bearing portion (65) is attached to the first mounting plate (25a) from the bottom. The upper edge of the connecting support plate (68) provided around the rotating shaft (1) between the lower mounting plate (25b) from the bottom and connecting the left and right lower support frames (32, 32). The portion (68a) and the lower bearing portion (65) are connected by a support frame (66), and the engine (14) is mounted on the left and right connecting plates (40), and the driving force of the engine (14) is lowered downward. The rotary shaft (1) is decelerated by a lower drive gear (36) and a side driven gear (37) meshing with the drive gear (36) through a centrifugal clutch (35) attached to the projecting output shaft (34). The rotary shaft (1) is displaced at substantially equal intervals of 5 steps in the vertical direction. Attached plate (25) is attached, and rotating blade (2) is attached to the attaching plate (25) so as to protrude from the peripheral edge of attaching plate (25), and the rotating shaft (1) is attached 15 degrees by a hydraulic cylinder (79). The cover (3) is provided at a position where the rotary blade (2) around the rotary shaft (1) does not come into contact with the cover (3). ) At the front of the front opening (4), and a ceiling plate (26) and a lower support frame (32) at the lower side in the rotational direction of the rotary blade (2) in the vicinity of the front opening (4). And a blade fixing plate (53) for mounting the receiving blade (6) at substantially the same height as the mounting plate (25) of the front column (39). The receiving blade (6) is detachably attached to the blade fixing plate (53), and the front opening (4) of the cover (3) is welded. A pair of left and right remaining trunk inlet guide plates (54, 54) for guiding the upper portion of the remaining trunk to the front opening (4) is attached to the upper portion of the left trunk trunk guide plate (54, 54). An inward guide for guiding the upper part of the remaining trunk to the vicinity of the rotary blade (2) on the upper right side of the front opening (4) of the cover (3). The tool (56) is extended in the rearward extension direction of the remaining trunk entrance guide plate (54, 54), and is located on the side of the left side of the cover (3) on the lower rotation side of the rotary blade (2). The side opening (5) is opened, and the outlet of the side opening (5) is covered with a side cover (7) whose wall surface is gradually distant from the upper end to the lower end toward the outer side. The side cover (7) is formed into a U-shaped cross-sectional shape in plan view from the front and rear guide standing walls (7a, 7a) and the side inclined guide walls (7b), A U-shaped discharge port (8) in plan view is provided at the lower end of the side cover (7), and the ceiling plate (26) is the upper end and the lower end is the discharge port (8) on the inner surface of the inclined guide wall (7b). A remaining trunk processing apparatus, characterized in that an elastic body (9) made of a flat rubber plate suspended from the ground toward the ground side is attached .

The upper cover (11) having a lower end opened outwardly with the upper hinge (10) in the front-rear direction as a center is provided at the lower part of the right standing wall (3c) of the cover (3). The remaining trunk processing apparatus according to 1.