JP2004201580A

JP2004201580A - Reaping pretreatment apparatus for combine harvester

Info

Publication number: JP2004201580A
Application number: JP2002374685A
Authority: JP
Inventors: Hisayuki Satoji; 久幸里路; Hiroshi Iwamoto; 岩本　　浩; Toshiro Nagai; 敏郎長井
Original assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2002-12-25
Filing date: 2002-12-25
Publication date: 2004-07-22
Anticipated expiration: 2022-12-25
Also published as: JP4378951B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reaping pretreatment apparatus for combine harvester solving the problem that a conventional reaping pretreatment apparatus K is designed to push upward a reaping vertical cylinder B provided along the flank of a reaping drive shaft case( reaping frame ) A while extending the cylinder B, therefore a bending moment develops during rising and the reaping drive shaft case A deforms opposite to the cylinder B. <P>SOLUTION: This reaping pretreatment apparatus 9 has the following construction: The basal portion of a reaping frame 5 formed in a T-shaped fashion by linking to the front portion a reaping transmission frame 6 turned sideways is linked to a reaping input metal 3 provided on a reaping suspension platform 2, and a reaping vertical cylinder 10 is provided along the flank of the reaping frame 5 and this apparatus 9 is designed to make a vertical motion through the cylinder 10, and the reaping frame 5 is linked to the reaping input metal 3 in such a manner as to retain an angle tilting toward the cylinder 10 viewed from the top. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、コンバインにおける刈取前処理装置に関し、農業機械の技術分野に属するものである。
【０００２】
【従来の技術】
従来からコンバインは、車体フレ−ムの前部に装着している刈取前処理装置を、車体フレ−ムから着脱自由に分離したり、又は車体フレ−ムとの間に回動支点を設けて刈取前処理装置を車体フレ−ムに対して側方に回動して、車体フレ−ムとの間に作業空間を作り、メンテナンスを容易に行なうことができる刈取オ−プン装置が知られている。
【０００３】
そして、コンバインは、上記刈取オ−プン装置を構成する場合、刈取搬送装置を上下昇降する上下回動シリンダを、刈取駆動軸ケ−スの側方に位置させて設けた構成がある。（例えば、特許文献１参照）。
【０００４】
【特許文献１】
実開平２−５５５２８号公報（第１、及び２頁、第１、及び２図）
【０００５】
【発明が解決しようとする課題】
上述した従来のコンバインにおける刈取搬送装置の構成は、刈取搬送装置を上下昇降する上下回動シリンダを、刈取駆動軸ケ−ス（刈取フレ−ム）の側方に沿わせて配置して設け、シリンダに作動油を供給したり排出したりして上下昇降する構成としている。このように、刈取駆動軸ケ−スは、側方にある上下回動シリンダに作動油を供給しながら伸長させて刈取搬送装置を上昇回動するとき、上下回動シリンダの推力によって曲げモ−メントが生じ、刈取駆動軸ケ−スが変形して、上下回動シリンダの反対側に傾斜（図４参照）する不具合が発生し、課題となっている。
【０００６】
このように、従来の刈取前処理装置Ｋは、図４に示すように、刈取駆動軸ケ−ス（刈取フレ−ム）Ａを、側方に沿わせて設けた上下回動シリンダＢに作動油を供給して伸長させながら上方に押し上げる過程において、曲げモ−メントが生じてその刈取駆動軸ケ−ス（刈取フレ−ム）Ａを、上記シリンダＢの反対側に曲げて変形する問題点があった。
【０００７】
【課題を解決するための手段】
本発明は、上述した課題を解決するために、次の如き技術手段を講ずるものである。まず、請求項１の発明は、車体フレ−ム１の前側上部に設けた刈取懸架台２上に、刈取入力メタル３を上下回動自由に設け、該刈取入力メタル３は、伝動軸４を内装した刈取フレ−ム５の基部を前側に連結して、その先端部を車体フレ−ム１より前方下部に延長して設け、該刈取フレ−ム５は、その前部に横向きの刈取伝動フレ−ム６を連結してＴ字型に形成し、該刈取伝動フレ−ム６と前記刈取フレ−ム５とには、少なくとも刈取装置７、及び穀稈搬送装置８を設けて刈取前処理装置９を構成し、該刈取前処理装置９を上下昇降移動する刈取上下シリンダ１０を、平面視で前記刈取フレ−ム５の側方に沿わせて先端部を刈取フレ−ム５に連結して設けたコンバインにおいて、刈取フレ−ム５は、基部の刈取入力メタル３に対して、平面視で刈取上下シリンダ１０側に傾く角度を保持して連結した構成のコンバインにおける刈取前処理装置であって、本案に係る実施例は、刈取上下シリンダが油圧機構の作用によって伸長しながら刈取フレ−ムを押し上げ、刈取前処理装置を上昇する過程において、刈取フレ−ムに曲げモ−メントが生じて刈取上下シリンダの逆側に変形される作用を受ける。しかしながら、刈取フレ−ムは、基部の刈取入力メタルに対して、平面視において、刈取上下シリンダ側に傾く角度を保持して連結しており、変形を予め想定した構成としている。
【０００８】
つぎに、請求項２の発明は、車体フレ−ム１の前側上部に設けた刈取懸架台２上に、刈取入力メタル３を上下回動自由に設け、該刈取入力メタル３は、伝動軸４を内装した刈取フレ−ム５の基部を前側に連結して、その先端部を車体フレ−ム１より前方下部に延長して設け、該刈取フレ−ム５は、その前部に横向きの刈取伝動フレ−ム６を連結してＴ字型に形成し、該刈取伝動フレ−ム６と前記刈取フレ−ム５とには、少なくとも刈取装置７、及び穀稈搬送装置８を設けて刈取前処理装置９を構成し、該刈取前処理装置９を上下昇降移動する刈取上下シリンダ１０を、平面視で前記刈取フレ−ム５の側方に沿わせて先端部を刈取フレ−ム５に連結して設けたコンバインにおいて、横向きの刈取伝動フレ−ム６は、中間部を連結した刈取フレ−ム５に対して、平面視で刈取上下シリンダ１０側に傾く角度を保持して連結した構成のコンバインにおける刈取前処理装置であって、本案に係る実施例は、刈取上下シリンダが油圧機構の作用によって伸長しながら刈取フレ−ムを押し上げ、刈取前処理装置を上昇する過程において、刈取フレ−ムに曲げモ−メントが生じて刈取上下シリンダの逆側に変形しようとする作用を受ける。しかしながら、刈取フレ−ムは、先端部に連結する横向きの刈取伝動フレ−ムを、平面視で刈取上下シリンダ側に傾く角度を保持して連結した構成にして、予め変形を想定した構成となっている。
【０００９】
つぎに、請求項３の発明は、車体フレ−ム１の前側上部に設けた刈取懸架台２上に、刈取入力メタル３を上下回動自由に設け、該刈取入力メタル３は、伝動軸４を内装した刈取フレ−ム５の基部を前側に連結して、その先端部を車体フレ−ム１より前方下部に延長して設け、該刈取フレ−ム５は、その前部に横向きの刈取伝動フレ−ム６を連結してＴ字型に形成し、該刈取伝動フレ−ム６と前記刈取フレ−ム５とには、少なくとも刈取装置７、及び穀稈搬送装置８を設けて刈取前処理装置９を構成し、該刈取前処理装置９を上下昇降移動する刈取上下シリンダ１０を、平面視で前記刈取フレ−ム５の側方に沿わせて先端部を刈取フレ−ム５に連結して設けたコンバインにおいて、刈取入力メタル３は、刈取懸架台２に対して、平面視で刈取上下シリンダ１０側に傾く角度を保持して連結した構成のコンバインにおける刈取前処理装置であって、本案に係る実施例は、刈取上下シリンダが油圧機構の作用によって伸長しながら刈取フレ−ムを押し上げ、刈取前処理装置を上昇する過程において、刈取フレ−ムに曲げモ−メントが生じて刈取上下シリンダの逆側に変形される作用を受ける。しかしながら、実施例の場合、刈取入力メタルは、刈取懸架台に対して、平面視で刈取上下シリンダ側に傾く角度を保持して連結した構成にしているから、上述の曲げ作用を受けて変形したとき通常の刈取作業に適する角度が保持できるものとなっている。
【００１０】
【発明の効果】
この種の構成に係るコンバインの刈取前処理装置は、上昇する過程において、刈取フレ−ムから若干の間隔をおいて側方に沿った状態に設けた刈取上下シリンダの伸長による押し上げ作用が働いているとき、同時に、曲げモ−メントが生じて刈取フレ−ムを上記刈取上下シリンダの逆側に変形する（図４参照）。
【００１１】
しかしながら、請求項１の発明は、予め、変形することを想定して製作しているから、刈取フレ−ムは、変形後に真っ直ぐの状態になる特徴を有するものである。
そして、請求項２の発明は、刈取フレ−ムの先端部に刈取上下シリンダ側に傾いた状態に刈取伝動フレ−ムを連結することによって、上述のような曲げモ−メントによって変形した後に、刈取伝動フレ−ムが前進方向に対してほぼ直角状態を保ち、適確に刈取作業ができる特徴がある。
【００１２】
そして、請求項３の発明は、刈取入力メタルを、刈取懸架台に対して、平面視で刈取上下シリンダ側に傾く角度を保持して連結したものであるから、前述のような刈取前処理装置の上昇過程において、曲げモ−メントが働いて変形しても、予め、変形後の状態を想定して構成したから、刈取前処理装置は、変形後に車体フレ−ムに対して適正な角度を確保できる特徴がある。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて具体的に説明する。
まず、コンバインは、図５、及び図６に示すように、左右一対のクロ−ラ１１、１１を装備した車体フレ−ム１上に脱穀装置１２を搭載し、該脱穀装置１２に併設して他方側には図示しないグレンタンクを搭載しており、前側には刈取前処理装置９を連結して構成している。
【００１４】
そして、刈取前処理装置９は、図５、図６、及び図７に示すように、刈取懸架台２上に設けたスペ−サ１３上に取付ねじ１４によって着脱自由に刈取入力メタル３を連結し、この刈取入力メタル３に、前部に横長にした刈取伝動フレ−ム６を連結した刈取フレ−ム５の基部を連結して構成している。そして、刈取フレ−ム５は、内装軸架した伝動軸４によって刈取入力メタル３から刈取伝動フレ−ム６に回転動力を伝動する構成としている。この場合、刈取フレ−ム５は、図６に示すように、基部（後部）の刈取入力メタル３から前方低位置に傾斜させて設け、先端部（前部）の刈取伝動フレ−ム６が低い位置にある構成としている。そして、刈取前処理装置９は、上記刈取フレ−ム５と刈取伝動フレ−ム６とに穀稈引起し装置１５、掻込み装置１６、刈取装置７、穀稈搬送装置８（前部搬送装置８ａ、後部搬送装置８ｂ）を設け、それぞれ伝動可能に構成している。なお、前部搬送装置８ａと後部搬送装置８ｂとは、それぞれ株元搬送チエンと穂先搬送ラグとを上下一組として構成している。
【００１５】
１７は分草杆である。
そして、刈取上下シリンダ１０は、図５、及び図６に示すように、前記刈取フレ−ム５の側方において、基部を車体フレ−ム１側に取り付け、先端部を横向きの連結ア−ム１８を介して刈取フレ−ム５の側部に連結している。
【００１６】
そして、図５、及び図６に示す実施例の場合、上記刈取上下シリンダ１０の先端部分が穀稈搬送装置８の穀稈通路下側にあって、前部搬送装置８ａの終端部分から後部搬送装置８ｂの始端部分へ穀稈を受継ぐ部分に位置するから、その部位に穀稈ガイド１９を設けて搬送穀稈の株元側を外方に誘導して、ピストン１０ａの先端部や連結ア−ム１８にひっかかったり、絡み付きがないように構成している。
【００１７】
そして、前述したスペ−サ１３は、図６、及び図７に示す実施例の場合、緩衝部材としての機能と、刈取前処理装置９の互換性を可能にした構成となっている。すなわち、実施例は、図面から解るように、走行ギヤボックス（走行ミッションケ−ス）２０の上面を刈取懸架台２に形成しているから、作業中に刈取前処理装置９の前部が、例えば、土中に突っ込む等の障害が発生したとき、刈取入力メタル３に過大な押圧力がかかり、走行ギヤボックス（走行ミッションケ−ス）２０や刈取入力メタル３を破損するおそれがある。そのとき、前述のスペ−サ１３は、上記押圧力を受けて変形して、走行ギヤボックス（走行ミッションケ−ス）２０や刈取入力メタル３の破損を未然に防止することができる利点がある。更に、上記スペ−サ１３は、高さが異なるものと取替えることによって、刈取前処理装置９の後部における穀稈受継高さを変更することができるから、穀稈供給口（フィ−ドチエンの始端部）の高さが異なる脱穀装置１２の交換にも、スペ−サ１３の取替えによって対応でき、型式の違うコンバインに互換性がある特徴を有する。
【００１８】
つぎに、刈取前処理装置９は、刈取フレ−ム５の側方にある刈取上下シリンダ１０による上昇時の押上げ力に伴って発生する曲げモ−メントに対応する実施例の構成を説明する。
まず、刈取前処理装置９は、図１に示す実施例の場合、刈取フレ−ム５を基部の刈取入力メタル３に対して、平面視で刈取上下シリンダ１０側に傾く角度を保持して連結した構成としている。
【００１９】
つぎに、刈取前処理装置９は、図２に示す実施例の場合、刈取フレ−ム５の前部に取り付ける横向きの刈取伝動フレ−ム６を、平面視で刈取上下シリンダ１０側に傾く角度を保持して連結した構成としている。
更に、刈取前処理装置９は、図３に示す実施例の場合、刈取入力メタル３を、刈取懸架台２に対して、平面視で刈取上下シリンダ１０側に傾く角度を保持して連結した構成としている。
【００２０】
以上述べたように、３つに実施例に係る刈取前処理装置９は、いずれの構成も、予め、平面視で刈取上下シリンダ１０側に傾く角度を保持した構成とし、前述した刈取上下シリンダ１０による上昇時の押上げ力に伴って発生する曲げモ−メントによって曲げられた状態で前進方向に真っ直ぐ対応できる構成としている。
【００２１】
このように、本案に係る３つの実施例は、予め、刈取上下シリンダ１０の上昇時の曲げモ−メントを想定して対応した構成で、従来構成（図４参照）のように刈取フレ−ムＡが刈取上下シリンダＢの逆側に傾斜した状態で刈取作業を行なうことを解消できるものである。
【００２２】
つぎに、刈取オ−プン機構とストッパ−２５について説明する。
まず、刈取オ−プンフレ−ム２６は、図８、乃至図１０に示すように、走行ミッションケ−ス２０上に形成した受座２７上に載置し、オ−プン回動ア−ム２８の先端部に連結した構成としている。そして、該オ−プン回動ア−ム２８は、車体フレ−ム１上において、上記ミッションケ−ス２０より左側に縦方向に軸装した回動部材２９に基部側を連結して支持し、回動支点Ｐを中心にして車体フレ−ム１の左側に回動する構成としている。
【００２３】
そして、刈取オ−プンフレ−ム２６は、上側に前記刈取入力メタル３を搭載して固着し、前述した刈取前処理装置９の全体を一体として刈取オ−プンができる構成としている。
そして、刈取上下シリンダ１０は、図８、及び図９に示すように、基部を前記回動部材２９に連結し、先端部分を、連結ア−ム１８を介して刈取フレ−ム５に連結し、刈取前処理装置９と一体にオ−プン回動する構成としている。
【００２４】
そして、ストッパ−２５は、図８、乃至図１０に示すように、回動支点Ｐ側の回動部材２９に設け、図１０に示すように、外側にオ−プン回動したとき後側の支持部材３０に当たり回動を規制する構成としている。
このように、ストッパ−２５は、刈取前処理装置９をオ−プン回動するとき、安全な終点位置を予め設定して構成し、刈取前処理装置９が脱穀装置１２に干渉したり、衝突するのを未然に防止するように回動を規制する特徴がある。
【００２５】
別実施例１
つぎに、図１１、乃至図１６に基づいて別実施例１を具体的に説明する。
別実施例１は、油圧式無段変速装置４０の操作装置４１に関し、安価な費用で製作できる構成でありながら、操作レバ−４２の操作力を軽減してオペレ−タの負担を軽くしようとするものである。
【００２６】
この種の油圧式無段変速装置４０は、通常、操作レバ−４２をニュ−トラル位置を起点にして、直線方向に一方側に操作すれば前進走行（正回転）し、他方側に操作すれば後進走行（逆回転）に切り替わる構成である。そして、前記操作レバ−４２は、起点となるニュ−トラル位置から離れる側に操作するほど高速回転の出力となる構成となっている。更に、操作レバ−４２は、図１４のグラフに示すように、中心（起点）のニュ−トラル位置（Ｎ−Ｎ）から離れるにつれて操作荷重が大となり、それに伴って上述のように高速回転の動力を出力する構成となっている。そして、油圧式無段変速装置４０は、実施例の場合、図１１に示すように、コンバインに搭載して、走行ミッション装置４３の伝動上手側に接続した構成としている。
【００２７】
以下、別実施例１を具体的に説明する。
まず、操作レバ−４２は、図１１、乃至図１３に示すように、操縦座席４４の側方に配置し、基部を、支持軸４５に回動自由に軸装している変速ア−ム４６に操作力が伝わるように前後の受具４７によって接続し、前後方向に直線的に回動操作すると、上記変速ア−ム４６の先端側が上下に回動する構成としている。そして、連杆４８は、下端部を上記変速ア−ム４６に連結し、上端部を作動ア−ム４９の先端部に連結して構成している。そして、作動ア−ム４９は、図１３に示すように、中間部を機体側に枢着して設け、基部側に操作ロット５０の上部を接続して構成している。そして、操作ロット５０は、下部を、油圧式無段変速装置４０の斜板に操作可能に連結しているトラニオンア−ム５１の先端に連結し、操作力が伝わる構成としている。
【００２８】
このように、油圧式無段変速装置４０は、操作レバ−４２の操作力が前後の受具４７、変速ア−ム４６を経て連杆４８に伝わり、更に、連杆４８から作動ア−ム４９、操作ロット５０を経由してトラニオンア−ム５１に達して斜板が操作され、前後進の切替えと無段階の変速操作ができる構成となっている。
【００２９】
つぎに、操作力アシスト機構５２は、摺動杆５３と、その外周に巻き付けたバランススプリング５４と、摺動杆５３を支持する摺動受具５５とから構成している。
まず、摺動杆５３は、図１３に示すように、前記変速ア−ム４６と同レベルで先端側に位置し、一方側を前記変速ア−ム４６の先端に取付部材５６により枢着して連結し、他方側を機体に支持している上記摺動受具５５に杆の長手方向に摺動自由に嵌合して設けた構成としている。そして、バランススプリング５４は、上述のとおり、摺動杆５３の外周に巻き付けた状態に装備して、基部を上記摺動受具５５に受け止めさせ、先端側を変速ア−ム４６側に張圧力が働くように取付部材５６に押し当てて張圧した構成としている。
【００３０】
そして、バランススプリング５４は、操作レバ−４２がニュ−トラル位置にある時には、変速ア−ム４６の支持軸４５と、水平状態の変速ア−ム４６の先端部の取付部材５６との枢着点、及び摺動杆５３とが直線上に位置した状態で張圧力が働き、上下どちら側にも移動せず中立状態（操作レバ−４２、トラニオンア−ム５１）を確実に保持できる構成となっている。
【００３１】
以上のように構成した操作力アシスト機構５２は、バランススプリング５４の働きにより、操作レバ−４２をニュ−トラル位置を起点にして前進側、又は後進側のどちら側に操作しても同じ張圧力で操作荷重を軽減する方向にアシスト作用を発揮できる特徴がある。
【００３２】
そして、別実施例１の場合、操作レバ−４２に働くアシスト力は、図１６に示すように、バランススプリング５４の張圧力Ｆと、張圧力Ｆの働く方向に向かった仮想の線Ｓと変速ア−ム４６の中心から延長した仮想の平行線Ｐとの間隔Ｌの積によって算出できるから、図１５のグラフに示すように、Ｌが大きくなるほどアシスト力が大となる。
【００３３】
このように、別実施例１は、図１５に示すように、操作レバ−４２をニュ−トラル位置（Ｎ−Ｎ）から遠く高速側に操作すればするほど操作荷重が大となるが、それに相応したアシスト力も順次大となって操作荷重を打ち消し、常に、同程度の軽い操作力で高速位置まで操作ができる優れた特徴がある。
【００３４】
そして、変速ア−ム４６は、別実施例１の場合、図１２に示すように、基部の両側から摩擦式のブレ−キ部材５７を圧接し、レバ−荷重を調整できる構成としてリンク剛性を強くし、操作レバ−４２の操作フィ−リングを良くするものとした。
【００３５】
別実施例２
つぎに、図１７、乃至図１９に基づいて別実施例２を説明する。
別実施例２は、上述した別実施例１の操作力アシスト機構に関する別の実施態様である。
【００３６】
まず、変速ア−ム６０は、図面に示すように、後側に操作ア−ム６０ａを延長し、前側にスプリング取付ア−ム６０ｂを長く突出させて形成し、中間部を回動支点Ｐとして機体に枢着して取り付けた構成としている。そして、該変速ア−ム６０は、上側に操作レバ−６１を操作連動可能に連結し、操作ア−ム６０ａの先端部には連杆６２を介して作動ア−ム６３に連結し、スプリング取付ア−ム６０ｂの先端部には連結杆６４を介してバランススプリング６５を取り付けて構成している。そして、作動ア−ム６３は、図面から解るように、油圧式無段変速装置６６のトラニオンア−ム６７に操作ロット６８を介して連結し変速操作ができる構成としている。
【００３７】
そして、バランススプリング６５は、図面に示すように、テンションロット６９を介して機体に取り付け、張圧力を調整可能に構成している。
そして、実施例の場合、バランススプリング６５は、アシスト機構の最も右側に位置させることにより外側から比較的容易に調整等のメンテナンスができる配置に構成している。そして、上記変速ア−ム６０は、基部に摩擦ブレ−キ７０を設けた構成としている。
【００３８】
以上のように構成した別実施例２は、図１７に示すように、操作レバ−６１がニュ−トラル位置にある時は、バランススプリング６５が変速ア−ム６０の中心に沿って位置するからスプリング力がアシスト力としては働かず、一連の操作機構を中立位置に保持することになる。そして、バランススプリング６５は、操作レバ−６１を前進側、又は後進側に操作すると、ニュ−トラル位置の保持状態が崩れてバネ力が働き始め操作荷重を打ち消す側にアシスト力を発揮してオペレ−タの変速操作を楽にすることができる。
【００３９】
このように、別実施例２は、油圧式無段変速装置６６を変速操作する操作レバ−６１の操作力を軽減してオペレ−タの負担を軽くできる特徴がある。そして、図面に示す実施例の場合、バランススプリング６５は、アシスト機構の最も右側に位置させた構成であって、外側から張力の調整等のメンテナンスが容易にできる特徴がある。
【図面の簡単な説明】
【図１】本発明の実施例であって、刈取前処理装置の平面図である。
【図２】本発明の実施例であって、刈取前処理装置の平面図である。
【図３】本発明の実施例であって、刈取前処理装置の平面図である。
【図４】説明用に示した従来型の作用平面図である。。
【図５】本発明の実施例であって、刈取前処理装置の平面図である。
【図６】本発明の実施例であって、コンバインの側面図である。
【図７】本発明の実施例であって、一部を破断したコンバインの正面図である。
【図８】本発明の実施例であって、斜面図である。
【図９】本発明の実施例であって、作用斜面図である。
【図１０】本発明の実施例であって、作用平面図である。
【図１１】本発明の別実施例１であって、正面図である。
【図１２】本発明の別実施例１であって、要部の平面図である。
【図１３】本発明の別実施例１であって、作用側面図である。
【図１４】本発明の別実施例１であって、従来型の操作荷重を示すグラフである。
【図１５】本発明の別実施例１であって、操作荷重を示すグラフである。
【図１６】本発明の別実施例１であって、作用側面図である。
【図１７】本発明の別実施例２であって、側面図である。
【図１８】本発明の別実施例２であって、平面図である。
【図１９】本発明の別実施例２であって、コンバインの側面図である。
【符号の説明】
１車体フレ−ム２刈取懸架台
３刈取入力メタル４伝動軸
５刈取フレ−ム６刈取伝動フレ−ム
７刈取装置８穀稈搬送装置
９刈取前処理装置１０刈取上下シリンダ。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pre-cutting device for combine harvesting and belongs to the technical field of agricultural machinery.
[0002]
[Prior art]
Conventionally, a combine has been provided in such a manner that a harvesting pretreatment device mounted on a front portion of a vehicle body frame is detachably detachable from the vehicle body frame, or a turning fulcrum is provided between the machine and the vehicle body frame. 2. Description of the Related Art There is known a reaper opener which can rotate a reaping pretreatment device laterally with respect to a vehicle body frame to create a work space between the reaper and the vehicle body frame to facilitate maintenance. I have.
[0003]
When the harvesting opener is configured, the combine has an arrangement in which a vertically rotating cylinder for vertically moving the harvesting transport device is provided at a side of the harvesting drive shaft case. (For example, see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Utility Model Application Laid-Open No. 2-55528 (pages 1 and 2; FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
The configuration of the above-described mowing transport device in the conventional combine is such that a vertically rotating cylinder for vertically moving the mowing transport device is provided along the side of the mowing drive shaft case (mowing frame), and provided. The hydraulic oil is supplied to and discharged from the cylinder to move up and down. As described above, when the reaping drive shaft case is extended while supplying hydraulic oil to the vertically rotating cylinder on the side to rotate the reaping transport device upward, the mowing drive shaft case is bent by the thrust of the vertically rotating cylinder. This causes a problem that the cutting drive shaft case is deformed and inclined (see FIG. 4) on the opposite side of the vertically rotating cylinder.
[0006]
As described above, the conventional mowing pre-processing device K operates the mowing drive shaft case (mowing frame) A by the vertically rotating cylinder B provided along the side as shown in FIG. In the process of raising the oil while pushing it upward, a bending moment occurs, and the cutting drive shaft case (cutting frame) A is bent and deformed to the opposite side of the cylinder B. was there.
[0007]
[Means for Solving the Problems]
The present invention takes the following technical means in order to solve the above-mentioned problems. First, according to the first aspect of the present invention, a mowing input metal 3 is provided on a mowing suspension table 2 provided at an upper front portion of a vehicle body frame 1 so as to be freely rotatable up and down. The base of the mounted harvesting frame 5 is connected to the front side, and the leading end thereof is provided to extend forward and lower than the vehicle body frame 1, and the cutting frame 5 is provided with a lateral cutting power transmission at its front. The cutting frame 6 is connected to form a T-shape, and the cutting transmission frame 6 and the cutting frame 5 are provided with at least a cutting device 7 and a grain culm conveying device 8 to perform pre-cutting processing. A cutting unit 9 is constructed, and a cutting vertical cylinder 10 for vertically moving the cutting pre-processing unit 9 is moved along the side of the cutting frame 5 in a plan view, and a leading end is connected to the cutting frame 5. In the combine provided, the cutting frame 5 is placed in a plan view with respect to the cutting input metal 3 at the base. This is a pre-cutting device in a combine having a configuration in which the cutting frame is connected to the side of the harvesting vertical cylinder 10 while maintaining an angle of inclination. In the embodiment according to the present invention, the cutting frame is extended by the action of the hydraulic mechanism. In the process of pushing up and raising the pre-cutting device, the cutting frame is subjected to a bending moment, which is deformed to the opposite side of the cutting upper and lower cylinders. However, the reaping frame is connected to the reaping input metal of the base while maintaining an angle of inclination toward the reaping upper and lower cylinders in a plan view, and has a configuration in which deformation is assumed in advance.
[0008]
Next, according to a second aspect of the present invention, a mowing input metal 3 is provided on a mowing suspension table 2 provided at an upper front portion of a vehicle body frame 1 so as to be freely rotatable up and down. Is connected to the front side, and the leading end thereof is provided to extend forward and downward from the vehicle body frame 1, and the cutting frame 5 is provided with a horizontal cutting edge at its front part. The transmission frame 6 is connected to form a T-shape, and the reaping transmission frame 6 and the reaping frame 5 are provided with at least a reaping device 7 and a grain culm conveying device 8 so that the reaping can be performed before harvesting. A cutting vertical cylinder 10 which constitutes a processing device 9 and moves the pre-cutting processing device 9 up and down, is arranged along the side of the cutting frame 5 in plan view, and a leading end is connected to the cutting frame 5. In the combine which is provided in the horizontal direction, the cutting transmission frame 6 in the horizontal direction is connected to the cutting frame connecting the intermediate portions. 5 is a harvesting pre-processing device in a combine having a configuration in which it is connected to the cutting upper and lower cylinders 10 at an angle in plan view, wherein the cutting upper and lower cylinders are operated by a hydraulic mechanism. In the process of raising the cutting frame while extending and raising the pre-cutting device, a bending moment is generated in the cutting frame, and the cutting frame is deformed to the opposite side of the cutting upper and lower cylinders. However, the mowing frame has a configuration in which the lateral mowing transmission frame connected to the front end portion is connected to the mowing upper and lower cylinders in a plan view while maintaining an angle of inclination to the upper and lower cylinder sides, and is assumed to be deformed in advance. ing.
[0009]
Next, according to a third aspect of the present invention, a mowing input metal 3 is provided on a mowing suspension table 2 provided at an upper front portion of a vehicle body frame 1 so as to be vertically rotatable. Is connected to the front side, and the leading end thereof is provided to extend forward and downward from the vehicle body frame 1, and the cutting frame 5 is provided with a horizontal cutting edge at its front part. The transmission frame 6 is connected to form a T-shape, and the reaping transmission frame 6 and the reaping frame 5 are provided with at least a reaping device 7 and a grain culm conveying device 8 so that the reaping can be performed before harvesting. A cutting vertical cylinder 10 which constitutes a processing device 9 and moves the pre-cutting processing device 9 up and down, is arranged along the side of the cutting frame 5 in plan view, and a leading end is connected to the cutting frame 5. In the combine provided, the cutting input metal 3 is mounted on the cutting suspension 2 in a plan view. This is a pre-cutting device in a combine having a configuration in which it is connected to the cylinder 10 while maintaining a tilting angle. In the embodiment according to the present invention, the cutting frame is pushed up while the cutting upper and lower cylinders are extended by the action of the hydraulic mechanism. In the process of lifting the pre-cutting device, a bending moment is generated in the cutting frame and the cutting frame is deformed to the opposite side of the cutting upper and lower cylinders. However, in the case of the embodiment, the mowing input metal is configured to be connected to the mowing suspension while maintaining an angle inclined to the mowing upper and lower cylinders in a plan view, so that the mowing input metal is deformed by the bending action described above. Sometimes, an angle suitable for normal mowing work can be maintained.
[0010]
【The invention's effect】
In the combine pre-cutting device according to this type of structure, in the process of ascending, the lifting action by the extension of the cutting upper and lower cylinders provided along the side at a slight distance from the cutting frame works. At the same time, a bending moment is generated to deform the cutting frame to the opposite side of the cutting vertical cylinder (see FIG. 4).
[0011]
However, since the invention according to claim 1 is manufactured on the assumption that it is deformed in advance, the mowing frame has a feature that it becomes straight after the deformation.
According to the second aspect of the present invention, the cutting transmission frame is connected to the tip of the cutting frame in such a manner as to be inclined toward the cutting upper and lower cylinders. The reaping transmission frame has a feature that the reaping operation can be accurately performed by maintaining the cutting transmission frame at a substantially right angle to the forward direction.
[0012]
According to a third aspect of the present invention, the cutting input metal is connected to the cutting suspension base while maintaining an angle of inclination toward the cutting upper and lower cylinders in a plan view. In the ascending process, even if the bending moment acts and deforms, the mowing pre-processing device is configured to assume the deformed state in advance. There are features that can be secured.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
First, as shown in FIG. 5 and FIG. 6, the combine has a threshing device 12 mounted on a body frame 1 equipped with a pair of left and right crawlers 11, 11 and is provided alongside the threshing device 12. A Glen tank (not shown) is mounted on the other side, and a cutting pre-processing device 9 is connected to the front side.
[0014]
5, 6 and 7, the cutting input processing unit 9 connects the cutting input metal 3 to the spacer 13 provided on the cutting suspension base 2 by a mounting screw 14 in a detachable manner. The cutting input metal 3 is connected to a base of a cutting frame 5 having a horizontally long cutting power transmitting frame 6 connected to a front portion thereof. The reaping frame 5 is configured to transmit rotational power from the reaping input metal 3 to the reaping transmission frame 6 by the transmission shaft 4 mounted on the inner shaft. In this case, as shown in FIG. 6, the cutting frame 5 is provided so as to be inclined from the cutting input metal 3 at the base portion (rear portion) to a low position in front, and the cutting transmission frame 6 at the front end portion (front portion) is provided. The structure is located at a lower position. The cutting pre-processing device 9 includes a grain stalk raising device 15, a scraping device 16, a cutting device 7, a grain stalk transport device 8 (a front transport device) on the cutting frame 5 and the cutting transmission frame 6. 8a and a rear conveying device 8b) are provided so as to be capable of transmitting power. The front transfer device 8a and the rear transfer device 8b are configured as a pair of upper and lower stock transfer chains and a tip transfer lug, respectively.
[0015]
17 is a weeding rod.
As shown in FIGS. 5 and 6, the cutting vertical cylinder 10 has a base attached to the vehicle body frame 1 on the side of the cutting frame 5, and a distal end connected sideways. It is connected to the side of the cutting frame 5 through 18.
[0016]
In the case of the embodiment shown in FIGS. 5 and 6, the tip of the cutting vertical cylinder 10 is located below the cereal culm path of the cereal culm conveying device 8, and the rear conveying is performed from the terminal portion of the front conveying device 8 a. Since it is located at the part where the grain culm is inherited to the start end of the device 8b, a grain culm guide 19 is provided at that part to guide the root side of the transported grain culm outward, and the distal end of the piston 10a and the connecting hole -It is configured so as not to be caught or entangled with the memory 18.
[0017]
In the case of the embodiment shown in FIGS. 6 and 7, the above-described spacer 13 has a configuration that enables the function as the buffer member and the compatibility of the pre-cutting device 9. That is, in the embodiment, as can be understood from the drawings, the upper surface of the traveling gear box (traveling transmission case) 20 is formed on the mowing suspension base 2, so that the front portion of the mowing pre-processing device 9 is operated during operation. For example, when an obstacle such as plunging into the ground occurs, an excessive pressing force is applied to the reaping input metal 3 and the traveling gear box (traveling case) 20 and the reaping input metal 3 may be damaged. At this time, the aforementioned spacer 13 is deformed by receiving the above-mentioned pressing force, and there is an advantage that the traveling gear box (traveling transmission case) 20 and the cutting input metal 3 can be prevented from being damaged. . Further, since the spacer 13 can change the grain culm inheriting height at the rear part of the pre-cutting device 9 by replacing it with a grain having a different height, the grain culm supply port (the starting end of the feed chain) can be changed. It is possible to cope with the exchange of the threshing apparatus 12 having different heights by changing the spacer 13 and has a feature that the combine of different types is compatible.
[0018]
Next, a description will be given of a configuration of an embodiment corresponding to a bending moment generated by the cutting pre-processing device 9 due to a pushing-up force when the cutting vertical cylinder 10 on the side of the cutting frame 5 rises. .
First, in the case of the embodiment shown in FIG. 1, the cutting pre-processing device 9 connects the cutting frame 5 to the cutting input metal 3 at the base while maintaining the angle of inclination to the cutting upper and lower cylinders 10 in plan view. The configuration is as follows.
[0019]
Next, in the case of the embodiment shown in FIG. 2, the cutting pre-processing device 9 tilts the horizontal cutting transmission frame 6 attached to the front of the cutting frame 5 toward the cutting upper and lower cylinders 10 in plan view. Are held and connected.
Further, in the case of the embodiment shown in FIG. 3, the cutting pre-processing device 9 is configured such that the cutting input metal 3 is connected to the cutting suspension base 2 while maintaining an angle of inclination to the cutting upper and lower cylinders 10 in plan view. And
[0020]
As described above, each of the three cutting pre-processing devices 9 according to the embodiment has a configuration in which an angle of inclination to the cutting upper and lower cylinder 10 side in plan view is maintained in advance, and In a state of being bent by a bending moment generated by a pushing force at the time of ascending by the ascending force in the forward direction.
[0021]
As described above, the three embodiments according to the present invention have a configuration corresponding to the bending moment when the cutting vertical cylinder 10 is lifted in advance, and the cutting frame as in the conventional configuration (see FIG. 4). This makes it possible to eliminate the need for performing a mowing operation in a state where A is inclined to the opposite side of the mowing vertical cylinder B.
[0022]
Next, the cutting open mechanism and the stopper 25 will be described.
First, the mowing open frame 26 is placed on a receiving seat 27 formed on the traveling transmission case 20, as shown in FIGS. And is connected to the tip of the The open turning arm 28 is supported on the vehicle body frame 1 by connecting a base side to a turning member 29 which is vertically mounted on the left side of the transmission case 20 to the left. , And pivots to the left side of the vehicle body frame 1 about the pivot point P.
[0023]
The reaper open frame 26 has the reaper input metal 3 mounted on the upper side thereof and is fixed thereto, so that the reaper open processing unit 9 can be integrally formed into a reaper opener.
As shown in FIGS. 8 and 9, the cutting vertical cylinder 10 has a base connected to the rotating member 29 and a distal end connected to the cutting frame 5 via the connecting arm 18. , And is configured to open and rotate integrally with the pre-cutting device 9.
[0024]
The stopper 25 is provided on the turning member 29 on the turning fulcrum P side as shown in FIG. 8 to FIG. 10, and as shown in FIG. It is configured to restrict rotation by hitting the support member 30.
As described above, the stopper 25 is configured such that a safe end point position is set in advance when the pre-cutting device 9 is opened and rotated, and the pre-cutting device 9 interferes with the threshing device 12 or collides. There is a feature that the rotation is regulated so as to prevent the rotation.
[0025]
Another Example 1
Next, another embodiment 1 will be specifically described based on FIGS. 11 to 16.
Another embodiment 1 relates to the operating device 41 of the hydraulic continuously variable transmission 40, which has a configuration which can be manufactured at low cost, while reducing the operating force of the operating lever 42 to reduce the burden on the operator. Is what you do.
[0026]
This type of hydraulic continuously variable transmission 40 normally travels forward (forward rotation) when the operating lever 42 is operated in one direction in a linear direction starting from the neutral position, and is operated in the other direction. In this case, the vehicle is switched to reverse running (reverse rotation). The operation lever 42 is configured to output a high-speed rotation as the operation lever 42 is operated further away from the neutral position as a starting point. Furthermore, as shown in the graph of FIG. 14, the operation load of the operation lever 42 increases as the distance from the neutral position (N-N) at the center (starting point) increases. It is configured to output power. In the case of the embodiment, the hydraulic continuously variable transmission 40 is mounted on a combine and connected to the transmission upper side of the traveling transmission device 43 as shown in FIG.
[0027]
Hereinafter, another embodiment 1 will be specifically described.
First, as shown in FIGS. 11 to 13, the operation lever 42 is arranged on the side of the control seat 44, and the base is rotatably mounted on the support shaft 45. When the front and rear receiving members 47 are connected to each other so that the operating force is transmitted thereto, and the turning operation is performed linearly in the front and rear direction, the front end of the shift arm 46 is turned up and down. The connecting rod 48 has a lower end connected to the shift arm 46 and an upper end connected to the distal end of the operating arm 49. As shown in FIG. 13, the operating arm 49 is provided with an intermediate portion pivotally attached to the machine body side and an upper portion of the operation lot 50 connected to the base portion side. The operation lot 50 has a lower portion connected to the tip of a trunnion arm 51 operably connected to the swash plate of the hydraulic continuously variable transmission 40 to transmit an operating force.
[0028]
As described above, in the hydraulic continuously variable transmission 40, the operating force of the operating lever 42 is transmitted to the connecting rod 48 via the front and rear receiving members 47 and the shifting arm 46, and further, the operating arm is transmitted from the connecting rod 48. 49, the swash plate is operated by reaching the trunnion arm 51 via the operation lot 50, whereby forward / reverse switching and stepless speed change operation can be performed.
[0029]
Next, the operating force assist mechanism 52 includes a sliding rod 53, a balance spring 54 wound around the outer periphery thereof, and a sliding receiver 55 supporting the sliding rod 53.
First, as shown in FIG. 13, the sliding rod 53 is located at the front end side at the same level as the shift arm 46, and one side is pivotally attached to the front end of the shift arm 46 by an attachment member 56. And the other side is supported by the body 55 so as to be slidably fitted in the longitudinal direction of the rod. As described above, the balance spring 54 is mounted so as to be wound around the outer periphery of the sliding rod 53 so that the base is received by the sliding receiving member 55 and the distal end is tensioned toward the shifting arm 46. Is pressed against the mounting member 56 so as to work.
[0030]
When the operating lever 42 is in the neutral position, the balance spring 54 pivotally connects the support shaft 45 of the shift arm 46 and the mounting member 56 at the tip of the shift arm 46 in a horizontal state. The tension is applied when the point and the sliding rod 53 are located on a straight line, so that the neutral state (operation lever 42, trunnion arm 51) can be reliably maintained without moving to the upper or lower side. ing.
[0031]
With the operation force assist mechanism 52 configured as described above, the operation of the operation lever 42 from the neutral position to the forward side or the reverse side is performed by the operation of the balance spring 54, so that the same tension is applied. There is a feature that the assist action can be exerted in the direction of reducing the operation load.
[0032]
In the case of the first embodiment, as shown in FIG. 16, the assist force acting on the operation lever 42 includes the tension F of the balance spring 54, the virtual line S in the direction in which the tension F acts, and the speed change. Since it can be calculated by the product of the interval L with the virtual parallel line P extending from the center of the arm 46, as shown in the graph of FIG. 15, the assist force increases as L increases.
[0033]
As described above, in the first embodiment, as shown in FIG. 15, the operation load increases as the operation lever 42 is operated farther from the neutral position (N-N) to the high speed side. There is an excellent feature that the corresponding assist force gradually increases to cancel out the operation load, and the operation can be performed to the high-speed position with the same light operation force at all times.
[0034]
In the case of the first embodiment, as shown in FIG. 12, the transmission arm 46 presses friction type brake members 57 from both sides of the base to adjust the lever load, thereby increasing the link rigidity. The operation feeling of the operation lever 42 is improved.
[0035]
Another embodiment 2
Next, another embodiment 2 will be described with reference to FIGS.
Another embodiment 2 is another embodiment relating to the operation force assist mechanism of the above-described first embodiment.
[0036]
First, as shown in the drawing, the shifting arm 60 is formed by extending the operating arm 60a to the rear side and forming the spring mounting arm 60b to protrude long at the front side. And pivotally attached to the aircraft. The shifting arm 60 is connected to the upper side of the operating lever 61 in an operable manner, and is connected to the operating arm 63 via a connecting rod 62 at the distal end of the operating arm 60a. A balance spring 65 is attached to the distal end of the attachment arm 60b via a connecting rod 64. The operating arm 63 is connected to a trunnion arm 67 of a hydraulic continuously variable transmission 66 via an operation lot 68 so as to be able to perform a shifting operation, as can be seen from the drawing.
[0037]
As shown in the drawing, the balance spring 65 is attached to the body via a tension lot 69, and is configured to be able to adjust tension.
In the case of the embodiment, the balance spring 65 is arranged on the rightmost side of the assist mechanism so that maintenance such as adjustment can be performed relatively easily from the outside. The shift arm 60 has a structure in which a friction brake 70 is provided at a base.
[0038]
In the second embodiment configured as described above, as shown in FIG. 17, when the operation lever 61 is at the neutral position, the balance spring 65 is located along the center of the shift arm 60. The spring force does not act as an assist force, and keeps a series of operating mechanisms in a neutral position. When the operating lever 61 is operated to the forward side or the reverse side, the balance spring 65 breaks down the neutral position holding state, and the spring force starts to act to exert the assist force to the side to cancel the operation load, thereby operating the balance lever 65. -The gear shifting operation of the motor can be facilitated.
[0039]
As described above, the second embodiment is characterized in that the operating force of the operating lever 61 for shifting the hydraulic continuously variable transmission 66 can be reduced and the burden on the operator can be reduced. In the case of the embodiment shown in the drawings, the balance spring 65 is located on the rightmost side of the assist mechanism, and is characterized in that maintenance such as adjustment of tension from the outside can be easily performed.
[Brief description of the drawings]
FIG. 1 is a plan view of an embodiment of the present invention, showing a pre-cutting device.
FIG. 2 is a plan view of a pre-cutting device according to an embodiment of the present invention.
FIG. 3 is a plan view of the pre-cutting device according to the embodiment of the present invention.
FIG. 4 is an operational plan view of a conventional type shown for explanation. .
FIG. 5 is a plan view of a pre-cutting device according to an embodiment of the present invention.
FIG. 6 is a side view of the combine according to the embodiment of the present invention.
FIG. 7 is a front view of the combine according to the embodiment of the present invention, with a part thereof broken.
FIG. 8 is a perspective view of the embodiment of the present invention.
FIG. 9 is a working perspective view of the embodiment of the present invention.
FIG. 10 is an operation plan view of the embodiment of the present invention.
FIG. 11 is another embodiment 1 of the present invention and is a front view.
FIG. 12 is another embodiment 1 of the present invention and is a plan view of a main part.
FIG. 13 is another embodiment 1 of the present invention, and is an operational side view.
FIG. 14 is another example of the present invention, and is a graph showing a conventional operation load.
FIG. 15 is a graph showing an operation load in another embodiment 1 of the present invention.
FIG. 16 is a side view of another embodiment 1 of the present invention.
FIG. 17 is a side view of another embodiment 2 of the present invention.
FIG. 18 is a plan view of another embodiment 2 of the present invention.
FIG. 19 is a side view of a combine according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body frame 2 Cutting suspension stand 3 Cutting input metal 4 Transmission shaft 5 Cutting frame 6 Cutting transmission frame 7 Cutting device 8 Grain culm conveying device 9 Cutting pre-processing device 10 Cutting upper and lower cylinder.

Claims

A cutting input metal 3 is freely rotatable up and down on a cutting suspension 2 provided on a front upper portion of a vehicle body frame 1, and the cutting input metal 3 is a base of a cutting frame 5 having a transmission shaft 4 therein. Is connected to the front side, and the leading end thereof is provided to extend forward and downward from the vehicle body frame 1. The cutting frame 5 is connected to a lateral cutting power transmission frame 6 at the front portion thereof and T is connected. The mowing transmission frame 6 and the mowing frame 5 are provided with at least a mowing device 7 and a grain culm transport device 8 to constitute a mowing pre-processing device 9. A cutting vertical cylinder 10 for moving the processing device 9 up and down is arranged along the side of the cutting frame 5 in plan view, and a combiner provided with a cutting end connected to the cutting frame 5. 5 is arranged between the cutting input metal 3 at the base and the cutting upper and lower cylinders 10 in plan view. Cutting in the configuration of combined linked holding the Ku angle pretreatment device.

A cutting input metal 3 is freely rotatable up and down on a cutting suspension 2 provided on a front upper portion of a vehicle body frame 1, and the cutting input metal 3 is a base of a cutting frame 5 having a transmission shaft 4 therein. Is connected to the front side, and the leading end thereof is provided to extend forward and downward from the vehicle body frame 1. The cutting frame 5 is connected to a lateral cutting power transmission frame 6 at the front portion thereof and T is connected. The mowing transmission frame 6 and the mowing frame 5 are provided with at least a mowing device 7 and a grain culm transport device 8 to constitute a mowing pre-processing device 9. A cutting vertical cylinder 10 for vertically moving the processing device 9 is arranged along the side of the cutting frame 5 in a plan view, and a combine is provided with its leading end connected to the cutting frame 5. The transmission frame 6 cuts the cutting frame 5 having the intermediate portion connected thereto in a plan view. Cutting in the configuration of combined linked holding the angle inclined in the lower cylinder 10 side pretreatment apparatus.

A cutting input metal 3 is freely rotatable up and down on a cutting suspension 2 provided on a front upper portion of a vehicle body frame 1, and the cutting input metal 3 is a base of a cutting frame 5 having a transmission shaft 4 therein. Is connected to the front side, and the leading end thereof is provided to extend forward and downward from the vehicle body frame 1. The cutting frame 5 is connected to a lateral cutting power transmission frame 6 at the front portion thereof and T is connected. The mowing transmission frame 6 and the mowing frame 5 are provided with at least a mowing device 7 and a grain culm transport device 8 to constitute a mowing pre-processing device 9. A cutting input / output cylinder is provided on a combine provided with a cutting vertical cylinder 10 for vertically moving the processing device 9 along the side of the cutting frame 5 in plan view and having a leading end connected to the cutting frame 5. 3 is an angle with respect to the cutting suspension base 2 inclined toward the cutting upper and lower cylinders 10 in a plan view. It held cutting the structure Combine linked by pretreatment device.