JP5790064B2

JP5790064B2 - Combine

Info

Publication number: JP5790064B2
Application number: JP2011070145A
Authority: JP
Inventors: 里路　久幸; 久幸里路; 坂本　憲之; 憲之坂本
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2011-03-28
Filing date: 2011-03-28
Publication date: 2015-10-07
Anticipated expiration: 2031-03-28
Also published as: JP2012200238A

Description

この発明は、コンバインに関する。 The present invention relates to a combine.

従来、刈取装置の前部に設けた左右及び中央分草具の先端分草作用位置を左右位置調節可能に構成し、分草幅の広狭調節によって、条間隔が通常条間でない不規則な圃場での条刈作業が行えるように構成したものがある（例えば、特許文献１参照）。 Conventionally, the front and rear weeding positions provided on the front part of the cutting device are configured so that the tip weeding position can be adjusted to the left and right. There is one configured so as to be able to perform the reaping work in (see, for example, Patent Document 1).

特開２００９−２０１４２８号公報JP 2009-201428 A

上述の通り、特許文献１に記載された技術は、不規則な植立条間の圃場での刈取収穫作業の能率を向上させるためのものであるが、通常条間の圃場において分草幅を広げて刈取収穫作業を行なう場合、分草間隔が適当でなく、株割りや穀稈の取りこぼしが発生する場合がある。 As described above, the technique described in Patent Document 1 is for improving the efficiency of harvesting and harvesting work in the field between irregular planting lines. When the harvesting and harvesting work is expanded, the weeding interval is not appropriate, and there are cases where stock splits and cereals are missed.

また、通常の刈取条数より多くの穀稈条列を刈取装置に導入した場合、左右の分草具と各引起装置の間に形成される引起し経路との左右方向の間隔が大きくなり、穀稈を適切に引起すことができずに、引起装置より後方に設けた搬送装置において搬送姿勢の乱れを生じる虞がある。 In addition, when more rows of grain ridges are introduced into the reaping device than the normal number of reaping lanes, the space between the right and left weeding tools and the erecting path formed between the elevating devices increases in the left-right direction, There is a risk that the posture of the cereals cannot be raised properly and the conveying posture is disturbed in the conveying device provided behind the pulling device.

本願発明の課題は、上記問題を解消し、設定された刈取条数以上の穀稈を刈取収穫することができるコンバインを提供することである。 The subject of this invention is providing the combine which can eliminate the said problem and can harvest and harvest more than the set number of cuttings.

本発明は、上記課題を解決すべく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、走行車体（１）の前側に刈取装置（４）を設け、該刈取装置（４）には、穀稈を分草して後方の引起装置（１５）へ案内する左右の分草具（１４Ｌ，１４Ｒ）と、該左右の分草具（１４Ｌ，１４Ｒ）の間に配置される中分草具（１４Ｃ）と、前記引起装置（１５）によって引起された穀稈の株元を切断する刈刃装置（１６）を備えたコンバインにおいて、前記左右の分草具（１４Ｌ，１４Ｒ）の先端を、機体内側に位置する閉状態と、該閉状態よりも機体外側に位置する開状態とに位置変更可能に構成し、
前記閉状態における左右の分草具（１４Ｌ，１４Ｒ）と中分草具（１４Ｃ）との各配置間隔を、左の分草具（１４Ｌ）と中分草具（１４Ｃ）との間、及び、右の分草具（１４Ｒ）と中分草具（１４Ｃ）との間に、それぞれ１条の穀稈が導入可能な幅に設定し、前記開状態では、左右の分草具（１４Ｌ，１４Ｒ）と中分草具（１４Ｃ）との各配置間隔が、左の分草具（１４Ｌ）と中分草具（１４Ｃ）との間、及び、右の分草具（１４Ｒ）と中分草具（１４Ｃ）との間に、それぞれ２条の穀稈が導入可能な幅となるように設定し、前記刈刃装置（１６）の左右幅を、前記開状態における左右の分草具（１４Ｌ，１４Ｒ）の先端間隔よりも狭く、且つ、前記閉状態における左右の分草具（１４Ｌ，１４Ｒ）の先端間隔よりも広く設定し、前記刈取装置（４）の左右両側端に配置した左右の引起装置（１５Ｌ，１５Ｒ）の引起作用側に、前記左右の分草具（１４Ｌ，１４Ｒ）によって分草された穀稈を下方から上方へ移動する横向き突出姿勢の引起しラグ（２９）で引起す引起し経路（Ｙ２）を形成し、該引起装置（１５Ｌ，１５Ｒ）の下部には、下向き突出姿勢の引起しラグ（２９）が前記引起し経路（Ｙ２）の下端側に向けて左右方向に移動して穀稈の株元を掻き寄せる横方向所定幅の掻寄せ経路（Ｙ１）を形成し、前記引起装置（１５）には、引起しケース（２５）と、この引起しケース（２５）の上部において左右に架設した駆動スプロケット（２６）及びテンションスプロケット（２７）と、引起しケース（２５）の下部において左右方向に所定間隔を有して配置した左右のガイドローラ（２８ａ，２８ｂ）とを備え、前記駆動スプロケット（２６）とテンションスプロケット（２７）と左右のガイドローラ（２８ａ，２８ｂ）に、複数の引起しラグ（２９）を取付けた無端チェン（３０）を巻回し、前記左右のガイドローラ（２８ａ，２８ｂ）の軸間距離であるローラピッチ（Ｐ１）に対して、無端チェン（３０）に対する引起しラグ（２９）の取付間隔であるラグピッチ（Ｐ２）を略同間隔に設定して、前記掻寄せ経路（Ｙ１）に２つの引起しラグ（２９）が下向き突出姿勢で左右方向に移動する構成とし、前記左右の分草具（１４Ｌ，１４Ｒ）の夫々の内側端部が、前記開状態と前記閉状態のいずれの状態においても起立姿勢の引起しラグ（２９）の移動軌跡と正面視で重なる構成としたことを特徴とする。 In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 is provided with a cutting device (4) on the front side of the traveling vehicle body (1), and the cutting device (4) is used for weeding the cereals to the rear pulling device (15). The left and right weeding tools (14L, 14R) to be guided, the middle weeding tool (14C) disposed between the left and right weeding tools (14L, 14R), and the pulling device (15) In the combine provided with the cutting blade device (16) for cutting the cereal stock, the front end of the left and right weeding tools (14L, 14R) is in the closed state, and the airframe is more closed than the closed state. The position can be changed to the open state located outside,
The arrangement intervals of the left and right weeding tools (14L, 14R) and the middle weeding tool (14C) in the closed state are set between the left weeding tool (14L) and the middle weeding tool (14C), and , Each of the right weeding tools (14R) and the middle weeding tool (14C) is set to a width that allows introduction of one row of cereals, and in the open state, the left and right weeding tools (14L, 14R) and the middle weed tools (14C) are arranged between the left weed tools (14L) and the middle weed tools (14C), and between the right weed tools (14R) and the middle weeds. It sets so that it may become a width | variety which can introduce | transduce two rows of cereals between grass cutters (14C), respectively, and the left-right width of the said cutting blade apparatus (16) is set to the left and right grass cutters in the said open state ( 14L, 14R) is set to be narrower than the tip interval between the left and right weeding tools (14L, 14R) in the closed state, The cereals that have been weeded by the left and right weeding tools (14L, 14R) are moved from below to above on the pulling action side of the left and right pulling devices (15L, 15R) arranged at the left and right ends of (4). A raising path (Y2) is formed by the raising lug (29) in the laterally projecting posture, and the raising lug (29) in the downward projecting posture is raised at the lower part of the raising device (15L, 15R). A scraping path (Y1) of a predetermined width in the lateral direction that moves in the left-right direction toward the lower end side of the path (Y2) and scrapes the stocks of cereals is formed, and the pulling device (15) is raised. The case (25), the drive sprocket (26) and the tension sprocket (27) installed on the left and right in the upper part of the raising case (25), and a predetermined interval in the left and right direction in the lower part of the raising case (25) Left and right guys An endless chain (30) comprising rollers (28a, 28b) and a plurality of raising lugs (29) attached to the drive sprocket (26), tension sprocket (27), and left and right guide rollers (28a, 28b) , And the roller pitch (P1) which is the distance between the axes of the left and right guide rollers (28a, 28b), and the lug pitch (P2) which is the mounting interval of the raising lug (29) with respect to the endless chain (30) Are set at substantially the same interval, and the two raising lugs (29) are moved in the horizontal direction in a downward projecting posture on the scraping path (Y1). Each inner end portion is configured to overlap with the moving locus of the raising lug (29) in the standing posture in a front view in both the open state and the closed state .

請求項２記載の発明は、請求項１記載の発明において、前記走行車体（１）の下側に左右の走行クローラ（２Ｌ，２Ｒ）を設け、前記左右の分草具（１４Ｌ，１４Ｒ）のうち、前記開状態における左側の分草具（１４Ｌ）の先端位置が、左側のクローラ（２Ｌ）の外側端部よりも外側の位置に偏倚する構成としたことを特徴とする。 The invention according to claim 2 is the invention according to claim 1, wherein left and right traveling crawlers (2L, 2R) are provided below the traveling vehicle body (1), and the left and right weeding tools (14L, 14R) are provided. Among them, the tip position of the left weeding tool (14L) in the open state is configured to be biased to a position outside the outer end of the left crawler (2L) .

請求項３記載の発明は、請求項１または請求項２記載の発明において、前記左右の分草具（１４Ｌ，１４Ｒ）の各々を開状態と閉状態とに独立して切換える２つの操作レバー（１３Ｌ，１３Ｒ）を運転操作部（３３）に配置し、該２つの操作レバー（１３Ｌ，１３Ｒ）を機体後方に引き操作すると、左右の分草具（１４Ｌ，１４Ｒ）が前記開状態となり、操作レバー（１３Ｌ，１３Ｒ）を機体前方に押し操作すると、左右の分草具（１４Ｌ，１４Ｒ）が前記閉状態となるように連繋させ、該２つの操作レバー（１３Ｌ，１３Ｒ）の下部を正面視で平行な姿勢とし、該２つの操作レバー（１３Ｌ，１３Ｒ）のうちの一方の操作レバー（１３Ｌ）の上部を、他方の操作レバー（１３Ｒ）から離れる方向へ屈曲させたことを特徴とする。 According to a third aspect of the present invention, in the first or second aspect of the present invention, two operating levers for independently switching each of the left and right weeding tools (14L, 14R) between an open state and a closed state ( 13L, 13R) is placed in the driving operation section (33), and when the two operation levers (13L, 13R) are pulled backward, the right and left weeding tools (14L, 14R) are in the open state, When the levers (13L, 13R) are pushed forward, the left and right weeding tools (14L, 14R) are connected so as to be in the closed state, and the lower portions of the two operation levers (13L, 13R) are viewed from the front. And an upper portion of one operation lever (13L) of the two operation levers (13L, 13R) is bent in a direction away from the other operation lever (13R) .

請求項１記載の発明によれば、通常の刈取条数の穀稈を刈取る状態から、この通常の刈取条数に加えて２条分の穀稈を刈取る状態までに亘り、刈取装置（４）に導入する穀稈の条数を変更することができる。 According to the invention described in claim 1, the cutting device (from the state of cutting the normal number of harvested ridges to the state of cutting the number of cropped ridges in addition to the normal number of harvested strips) It is possible to change the number of cereal grains introduced in 4).

例えば２条刈りのコンバインの場合は、引起装置（１５）を左右に２基設け、２条から最大４条の穀稈を刈取装置（４）に導入することができる。
通常の２条刈作業を行う場合は、左右の分草具（１４Ｌ），（１４Ｒ）は閉状態にあって、左右の分草具（１４Ｌ，１４Ｒ）と中分草具（１４Ｃ）との間に１条ずつの穀稈が導入され、左右合わせて２条分の穀稈が刈刃装置（１６）側に分草案内されて刈り取られる。 For example, in the case of a two-row harvesting combine, two pulling devices (15) are provided on the left and right sides, and from 2 to a maximum of 4 wheat straws can be introduced into the harvesting device (4).
When performing normal two-row cutting work, the left and right weeding tools (14L) and (14R) are in a closed state, and the left and right weeding tools (14L and 14R) and the middle weeding tool (14C) One grain of cocoon is introduced in between, and two grains of cocoon are left and right and are cut and guided to the cutting blade device (16).

そして、左右の分草具（１４Ｌ，１４Ｒ）を上記の２条刈作業状態位置から外側方に大きく張り出した開状態とした場合には、左分草具（１４Ｌ）と中分草具（１４Ｃ）及び右分草具（１４Ｒ）と中分草具（１４Ｃ）との間にはそれぞれ２条ずつの穀稈が導入され、左右合わせて４条分の穀稈が刈り取られる。 When the left and right weeding tools (14L, 14R) are in the open state projecting outward from the above-mentioned two-row cutting operation state position, the left weeding tool (14L) and the middle weeding tool (14C) ) And the right branching tool (14R) and the middle branching tool (14C), two cereals are introduced respectively, and four cereals are harvested in total on the left and right.

左右の分草具（１４Ｌ，１４Ｒ）を左右内外に位置変更するだけで、２条刈から３条刈または４条刈での刈取収穫作業が可能となり、通常の刈取条数が２条刈に設定された刈取搬送部の構造を大幅に変更することなく、安価で作業能率の高いコンバインを提供することができる。 Just changing the position of the right and left weeding tools (14L, 14R) to the inside and outside of the left and right makes it possible to perform harvest harvesting from 2-row to 3-row or 4-row cut, and the normal number of cut-to-leaves to 2 An inexpensive and high work efficiency combine can be provided without significantly changing the set structure of the cutting and conveying unit.

また、刈刃装置（１６）の左右幅を、各々前記開状態とした前記左右の分草具（１４Ｌ，１４Ｒ）の先端間隔よりも狭く設定したので、刈取装置（４）に導入する穀稈を、通常の刈取条数から、この条数に加えて２条分の穀稈を刈取りできるものでありながら、刈刃装置（１６）の左右幅を穀稈の切断性能に支障がない範囲で狭くすることで、刈刃装置（１６）が発生させる振動や騒音を低減することができる。加えて、刈取装置（４）をコンパクトに構成でき、旋回時に刈取装置（４）が周囲の畦畔等に接触し難く、操作性の優れたコンバインを提供することができる。 Moreover, since the left-right width of the cutting blade device (16) is set to be narrower than the distance between the tips of the left and right weeding tools (14L, 14R) in the open state, the grain culm introduced into the reaping device (4) From the normal number of cutting lines, in addition to this number, the width of the cutting blade device (16) can be cut in the range that does not hinder the cutting performance of the cutting machine. By making it narrow, vibration and noise generated by the cutting blade device (16) can be reduced. In addition, the harvesting device (4) can be configured in a compact manner, and the harvesting device (4) is less likely to come into contact with the surrounding shore during turning, so that a combine with excellent operability can be provided.

また、刈刃装置（１６）の左右幅を、各々前記閉状態とした左右の分草具（１４Ｌ，１４Ｒ）の先端間隔よりも広く設定したことにより、刈取装置（４）に導入される刈取対象の穀稈量に対して刈刃装置（１６）の切断能力に余裕が生まれ、確実に穀稈を刈取ることができる。 Further, the cutting blade introduced into the cutting device (4) by setting the horizontal width of the cutting blade device (16) wider than the distance between the tips of the left and right weeding tools (14L, 14R) in the closed state. A margin is provided in the cutting ability of the cutting blade device (16) with respect to the amount of the target culm, and the culm can be cut reliably.

また、左右の分草具（１４Ｌ，１４Ｒ）と、これに隣接する中分草具（１４Ｃ）との間に夫々２条分の穀稈が導入されても、引起装置（１５）の下部に形成した掻寄せ経路（Ｙ１）に沿って横移動する引起ラグ（２９）によって、確実に引起し経路（Ｙ２）側へ掻き寄せることができ、穀稈の取りこぼしを防止することができる。 Moreover, even if two cereals are introduced between the right and left weeding tools (14L, 14R) and the adjacent weeding tool (14C), they are placed under the pulling device (15). With the pulling lug (29) that moves laterally along the formed scraping path (Y1), the pulling lug (29) can be surely lifted and scraped to the path (Y2) side, and cereals can be prevented from being overlooked.

また、ローラピッチ（Ｐ１）に対して、ラグピッチ（Ｐ２）を略同間隔に、又は、狭く設定したことで、掻寄せ経路（Ｙ１）において、複数の引起ラグ（２９）が存在しうる構成としている。 Further , by setting the lag pitch (P2) at substantially the same interval or narrower than the roller pitch (P1), a configuration in which a plurality of raising lags (29) can exist in the scraping path (Y1) is provided. Yes.

従って、左右の分草具（１４Ｌ，１４Ｒ）と、これに隣接する中分草具（１４Ｃ）との間に夫々２条分の穀稈が導入されて掻寄せ経路（Ｙ１）を移動中の引起ラグ（２９）で掻寄せている穀稈が引起ラグ（２９）から離脱することがあっても、この引起ラグ（２９）に後続して移動している他の引起ラグ（２９）によって穀稈を受け止めることができるので、整然と穀稈を掻寄せ、引起すことができる。
また、左右の分草具（１４Ｌ，１４Ｒ）の内側端部が、開状態と閉状態のいずれの状態においても起立姿勢の引起しラグ（２９）の移動軌跡と正面視で重なるので、左右の分草具（１４Ｌ，１４Ｒ）により分草された穀稈を引起しラグ（２９）に円滑に引継ぐことができる。 Accordingly, two cereal grains are introduced between the right and left weeding tools (14L, 14R) and the adjacent weeding tool (14C) and are moving along the scraping path (Y1). Even if the cereal squeezed by the pulling lag (29) may be detached from the pulling lag (29), the grain may be moved by another pulling lag (29) moving following the pulling lag (29). Because it can catch a cocoon, it can neatly rake up and raise the cereal.
In addition, the inner end portions of the left and right weeding tools (14L, 14R) overlap with the movement locus of the raising lug (29) in the standing posture in both the open state and the closed state. The cereals that have been weeded by the weeding tools (14L, 14R) can be raised and smoothly taken over by the rug (29).

請求項２記載の発明によれば、請求項１に記載の発明による効果に加えて、左側の分草具（１４Ｌ）を前記開状態とした場合の分草具（１４Ｌ）の先端位置を、左側の走行クローラ（２Ｌ）の外側端部より外側に設定したので、機体直進時や、旋回時に未刈地側の穀稈が左側のクローラ（２Ｌ）によって踏み込まれることがなくなり、次行程での刈取作業が良好に行える。 According to the invention of claim 2, in addition to the effect of the invention of claim 1, the tip position of the weeding tool (14L) when the left weeding tool (14L) is in the open state, Since it is set outside the outer edge of the left traveling crawler (2L), the cereals on the uncut ground will not be stepped on by the left crawler (2L) when going straight ahead or turning. Good cutting work.

請求項３記載の発明によれば、請求項１または請求項２に記載の発明による効果に加えて、左右の分草具（１４Ｌ，１４Ｒ）は、外側に開くと穀稈導入条数が増加し、内側に閉じると導入条数は減少するが、この左右の分草具（１４Ｌ，１４Ｒ）を外側に開く時は、操作レバー（１３Ｌ），（１３Ｒ）の引き操作によって行うので、左右の分草具（１４Ｌ，１４Ｒ）の張出し操作が無理なく容易に行える。 According to invention of Claim 3 , in addition to the effect by the invention of Claim 1 or Claim 2 , when the right and left weeding tools (14L, 14R) are opened outward, the number of cereal introduction lines increases. However, when it is closed to the inside, the number of introduced strips decreases, but when opening the left and right weeding tools (14L, 14R) to the outside, it is performed by pulling the operation levers (13L), (13R). The overhanging operation of the weeding tools (14L, 14R) can be performed easily and without difficulty.

コンバインの平面図Top view of the combine コンバインの正面図Combine front view コンバインの側面図Combine side view 同上要部の平面図Top view of the main part コンバインの一部を示す側面図Side view showing part of the combine 刈取装置の要部の正面図Front view of main parts of reaping device 同上要部の正面図Front view of the main part 同上要部の正面図Front view of the main part 同上要部の正面図Front view of the main part 同上要部の正面図Front view of the main part 分草具操作用レバーの側面図Side view of lever for lever operation 同上正面図Same as above 同上正面図Same as above 同上正面図Same as above 同上正面図Same as above 操作パネルの平面図Top view of the operation panel

この発明の実施例を図面に基づき説明する。
以下の説明では特別に断らない限りにおいて、コンバインの前進方向を向いて運転席５に着座した操縦者から視て左側を左といい、右側を右という。 An embodiment of the present invention will be described with reference to the drawings.
In the following description, unless otherwise specified, the left side is referred to as the left and the right side is referred to as the right when viewed from the pilot seated in the driver's seat 5 facing the forward direction of the combine.

図１乃至図３は、コンバインの全体図を示すものであり、この走行車体１には、走行ミッションＭを介して駆動される左右一対の走行クローラ２Ｌ，２Ｒを備え、後部に搭載した脱穀装置（脱穀部）３の前方部に刈取装置４を設置し，刈取装置４の横側部には、運転席５と、運転席前側のフロント操作ボックス６と、運転席左横側のサイド操作ボックス７とからなる運転操作部３３を備え、更に、その運転操作部３３の後方には脱穀粒を一時的に貯留するグレンタンクＧを装備している。 FIG. 1 to FIG. 3 show an overall view of a combine. This traveling vehicle body 1 is provided with a pair of left and right traveling crawlers 2L and 2R driven via a traveling mission M, and a threshing device mounted on the rear part. (Threshering part) A reaping device 4 is installed in front of the reaping unit 3, and on the lateral side of the reaping device 4, there is a driver seat 5, a front operation box 6 on the front side of the driver seat, and a side operation box on the left side of the driver seat. 7 and a Glen tank G for temporarily storing threshing grains is provided behind the operation operation unit 33.

フロント操作ボックス６の右側には、左右方向の操作で機体の進行方向を操向制御し、前後方向の操作で刈取装置４を昇降制御するパワステレバー８が設置されている。運転席５左側のサイド操作ボックス７上には、刈取装置４及び脱穀部３への回転動力を断続操作する刈脱クラッチレバー９、図示せぬ無段変速装置を変速して走行速度を変更する変速レバー（ＨＳＴレバー）１０、副変速レバー１１等が配置されている。 On the right side of the front operation box 6, there is installed a power steering lever 8 that controls the advancing direction of the machine body in the left-right direction and controls the lifting device 4 in the up-down direction. On the side operation box 7 on the left side of the driver's seat 5, the cutting and detaching clutch lever 9 that intermittently operates rotational power to the reaping device 4 and the threshing unit 3, and a continuously variable transmission (not shown) are shifted to change the traveling speed. A transmission lever (HST lever) 10, a sub transmission lever 11, and the like are arranged.

刈取装置４は、後支持フレーム３１で支持され、この後支持フレーム３１基端部（後端部）を、走行車体１に設けた不図示の支持部に回動自在に軸支している。そして、後支持フレーム３１の中間部と走行車体１の間に設けた刈取昇降シリンダＳの油圧駆動による伸縮により、刈取装置４が上下昇降される。 The reaping device 4 is supported by a rear support frame 31, and a rear end portion (rear end portion) of the rear support frame 31 is pivotally supported on a support portion (not shown) provided in the traveling vehicle body 1. Then, the cutting device 4 is moved up and down by hydraulic expansion and contraction of the cutting lifting cylinder S provided between the intermediate portion of the rear support frame 31 and the traveling vehicle body 1.

後支持フレーム３１の先端部（前端部）には、左右方向の横支持フレーム３２の左右中間部を連結しており、横支持フレーム３２からコンバインの機体前方に向けて、分草支持フレーム２１を、左右所定間隔をおいて複数配置している。 The front and rear end portions (front end portions) of the rear support frame 31 are connected to the left and right intermediate portions of the horizontal support frame 32 in the left-right direction, and the weed support frame 21 is directed from the horizontal support frame 32 toward the front of the combine body. A plurality of them are arranged at predetermined intervals on the left and right.

刈取装置４には、立毛する穀稈を左右に分草する左右の分草具１４Ｌ，１４Ｒ及び中央の中分草具１４Ｃと、分草後の穀稈を引き起す左右一対の穀稈引起装置１５Ｌ，１５Ｒ（１５）と、引起し後の穀稈を刈り取るバリカン式刈刃装置１６と、刈取後の穀稈を掻込搬送するスターホイル等の掻込搬送装置１７、掻込搬送後の穀稈を脱穀部に揚上搬送して供給する揚上搬送装置１８等を装備している。 The reaping device 4 includes left and right weeding tools 14L, 14R and a central middle weeding tool 14C for weeding the raised cereals to the left and right, and a pair of left and right cereal raising devices for raising the cereals after weeding. 15L, 15R (15), clipper-type cutting blade device 16 that cuts the culm after raising, a stirrer transporting device 17 such as a star wheel for scrambling and transporting the culm after cutting, and the cereal after scrambling It is equipped with a lifting and transporting device 18 and the like that feeds the straw by lifting and transporting it to the threshing section.

なお、前記各分草具１４は分草支持フレーム２１の先端に取り付けられている。
左右の分草具１４Ｌ，１４Ｒは、先端側が左内側方又は右外側方に向けて回動するよう分草支持フレーム２１の途中部に設けた上下方向の縦軸２２回りに回動自在に枢着している。 Each weeding tool 14 is attached to the tip of the weeding support frame 21.
The right and left weeding tools 14L and 14R pivot about a vertical axis 22 in the vertical direction provided in the middle part of the weeding support frame 21 so that the tip side turns toward the left inner side or the right outer side. I wear it.

図７に示すように、通常の２条刈作業を行う場合は、左右の分草具１４Ｌ，１４Ｒは閉状態にあって、左右の分草具１４Ｌ，１４Ｒと中分草具１４Ｃとの間に１条ずつの穀稈が導入され、左右合わせて２条分の穀稈が刈刃側に分草案内されるようになっている。 As shown in FIG. 7, when performing a normal two-row cutting operation, the left and right weeding tools 14L and 14R are in a closed state, and between the left and right weeding tools 14L and 14R and the middle weeding tool 14C. Each row of cereals is introduced to the left and right, and two cereals of cereals are guided to the cutting blade side.

左右分草具１４Ｌ，１４Ｒのうち、左分草具１４Ｌを外側方に開いた状態（開状態）では、中分草具１４Ｃと左分草具１４Ｌとの間に２条の穀稈が導入され、中分草具１４Ｃと右分草具１４Ｒとの間に導入される１条の穀稈と合わせて３条の穀稈が導入され(図８参照)、３条刈作業が可能となる。 Among the left and right weeding tools 14L and 14R, in the state where the left weeding tool 14L is opened outward (open state), two cereal grains are introduced between the middle weeding tool 14C and the left weeding tool 14L. In addition, three cereals are introduced together with one cereal that is introduced between the middle parting tool 14C and the right parting tool 14R (see FIG. 8), and the three chopping work becomes possible. .

また、左右分草具１４Ｌ，１４Ｒのうち、右分草具１４Ｒを外側方に開いた状態（開状態）は、中分草具１４Ｃと右分草具１４Ｒとの間に２条の穀稈が導入され、中分草具１４Ｃと閉状態の左分草具１４Ｌとの間に導入される１条の穀稈と合わせて３条の穀稈が導入され(図９参照)、上記と同様に３条刈作業ができるようになっている。 Further, of the left and right weeding tools 14L and 14R, the state in which the right weeding tool 14R is opened outward (open state) is between the middle weeding tool 14C and the right weeding tool 14R. Is introduced, and three cereals are introduced together with one cereal that is introduced between the middle weeding tool 14C and the closed left weeding tool 14L (see FIG. 9). In addition, it is possible to perform three-row cutting work.

そして、図１０に示すように、左右の分草具１４Ｌ，１４Ｒを外側方に開いた時には、左分草具１４Ｌと中分草具１４Ｃ及び右分草具１４Ｒと中分草具１４Ｃとの間にはそれぞれ２条ずつの穀稈が導入され、左右合わせて４条分の穀稈が導入されるようになっており、４条刈作業が可能となる。 As shown in FIG. 10, when the left and right weeding tools 14L, 14R are opened outward, the left weeding tool 14L, the middle weeding tool 14C, the right weeding tool 14R, and the weeding tool 14C Two cereals are introduced between each of them, and four cereals are introduced in total on the left and right sides, enabling four-row cutting work.

しかして、変速レバー１０を前方に傾動させて、走行クローラ２Ｌ，２Ｒによって機体を前進させて刈取収穫作業を行うのであるが、コンバインの刈取収穫作業では、圃場を上方から視て半時計回りに回りながら周辺部から中心部に向かって穀稈を刈り取る。 Thus, the shift lever 10 is tilted forward and the body is advanced by the traveling crawlers 2L and 2R to perform the harvesting and harvesting work. In the harvesting and harvesting work of the combine, the field is viewed from above in a counterclockwise direction. While turning, cut the cereals from the periphery to the center.

２条刈りの作業（図７）では、右分草具１４Ｒを既に刈り取った穀稈（既刈穀稈）の切り株Ｃの位置に合せると、左右分草具１４Ｌ，１４Ｒの間に２条分の穀稈が導入される間隔に設定しているので、操縦者は、運転席５の前方にある右分草具１４Ｒの位置を切り株Ｃの上を通過するように前記パワステレバー８で機体を操向しながら前進すればよく、刈取作業における機体の操作を容易となる。 In the two-row cutting operation (FIG. 7), when the right weeding tool 14R is aligned with the position of the stump C of the already harvested grain millet (already-milled grain millet), it is divided between the left and right weeding tools 14L and 14R. Therefore, the pilot moves the aircraft with the power steering lever 8 so that the right weeding tool 14R in front of the driver's seat 5 passes over the stump C. It is only necessary to move forward while steering, which facilitates the operation of the machine during the cutting operation.

３条刈りの作業のうち、図８に示す作業では、左分草具１４Ｌを圃場に植立する穀稈Ｋがこの左分草具１４Ｌよりも内側に入るようにする。この作業形態は、主に畦際の穀稈を刈取る際に用いられ、左分草具１４Ｌの先端が機体の左最外側に近づくことで、畦際の穀稈を刈取る際に周囲の障害物に機体を接触させることなく作業を行うことができ、周囲をコンクリート壁で囲まれた都市部の圃場などでは極めて有効である。 In the operation shown in FIG. 8 among the three-row cutting operations, the cereal culm K for planting the left weeding tool 14L in the field is set to enter the inside of the left weeding tool 14L. This mode of operation is mainly used when cutting the culm at the shore, and the tip of the left weeding tool 14L approaches the left outermost side of the aircraft, so The work can be performed without bringing the aircraft into contact with an obstacle, and it is extremely effective in an agricultural field in an urban area surrounded by a concrete wall.

図９に示す３条刈り作業は、コンバインの機体の左右両側に未刈り穀稈を位置させて行う所謂中割り作業に好適であり、走行クローラ２Ｒの外側端との距離が大きい右分草具１４Ｒの先端を穀稈Ｋのすぐ右側に位置させて刈取ることで、この穀稈Ｋよりも機体進行方向右側に位置する穀稈と走行クローラ２Ｒとのクリアランスを確保して刈取作業を行なうため、未刈穀稈を走行クローラ２Ｒ，２Ｌによって踏みつけることなく中割り作業を行なうことができる。 9 is suitable for a so-called splitting operation in which uncut cereal grains are located on both the left and right sides of the combine body, and the right weeding tool having a large distance from the outer end of the traveling crawler 2R. By cutting the tip of 14R to the right side of grain culm K, the clearance between grain crumb located on the right side of the forward direction with respect to grain culm K and the traveling crawler 2R is secured to perform the harvesting operation. The intermediate splitting operation can be performed without stepping on the uncut cereal meal by the traveling crawlers 2R and 2L.

４条刈りの作業（図１０）では、二条枠の穀稈引起装置１５Ｌ，１５Ｒで４条分の穀稈を刈取ることができ、刈取作業の効率を飛躍的に高めることができる。特に、前述の中割り作業を行なうにあたり効果的であり、刈取作業中に機体の方向転換などを行なう際にも、走行クローラ２Ｒ，２Ｌによって穀稈を踏みつけることなく作業を行なうことができる。 In the 4-row mowing operation (FIG. 10), it is possible to mow 4 rows of cereals with the 2-row culm pulling device 15L, 15R, and the efficiency of the reaping operation can be dramatically increased. In particular, it is effective in performing the above-described mid-split operation, and even when changing the direction of the machine body during the cutting operation, the operation can be performed without stepping on the cereals by the traveling crawlers 2R and 2L.

また、上述のように２条刈りから最大４条刈りまでに左右分草具１４Ｌ，１４Ｒの間隔を変更できることで、作業条件が良好な場合（穀稈が立毛状態であり、雨水や泥土等が付着していない場合や、穀稈の穂先の穀粒が比較的少ない場合）には、４条分の穀稈を刈取装置４に導入することで、圃場内を移動する距離や、機体の旋回を行なう回数を減少させ、能率的な作業を行なうことができる。 In addition, as described above, the distance between the left and right weeding tools 14L and 14R can be changed from two-row cutting to a maximum of four-row cutting, so that when the working conditions are good (the grain cocoon is napped, rainwater, mud, etc. In the case where there is no adhering or when the grain of the tip of the grain culm is relatively small), the distance to move in the field and the turning of the body can be obtained by introducing 4 grains of culm into the reaping device 4 It is possible to reduce the number of times to perform and to perform efficient work.

また、穀稈が倒伏していたり、濡れていたり、穀粒が多く、刈取搬送や脱穀の負荷が高いことが予想される作業条件においては、刈取装置４に導入する穀稈の量を２条分に制限することで、刈取装置４や脱穀装置３の負荷を軽減し安定した作業を行うことができる。 In addition, under the working conditions where the cereals are lying down, wet, or have a lot of grains, and the load of reaping and threshing is expected to be high, the amount of cereals introduced into the reaping device 4 is two. By limiting to minutes, the load of the reaping device 4 and the threshing device 3 can be reduced and stable work can be performed.

左右の分草具１４Ｌ，１４Ｒとこれらを遠隔操作する操作レバー１３Ｌ，１３Ｒとは、操作ワイヤ２３等を介して連動連結され、各操作レバー１３Ｌ，１３Ｒの支点Ｑを中心とする手前側（前方から後方）への引き操作により、左分草具１４Ｌを左外側方へ、右分草具１４Ｒを右外側方へ回動操作するように連動構成している。なお、操作レバー１３Ｌ，１３Ｒは、前方に押し操作すると、左右分草具１４Ｌ，１４Ｒは２条刈作業体勢の閉状態に復帰するようになっている。また、左右の操作レバー１３Ｌ，１３Ｒは、サイド操作ボックス７側において副変速レバー１１の横側近傍に配置され、正面視で左右平行状に配置している(図１２参照)。また、この操作レバーはユーザー左側と右側の識別が容易にできるように一方側の操作レバーを側方に向けて曲げたり(図１３)、左右のレバーを異なる長さにしたり(図１４)、左右のレバーを互いに反対方向の横向きに曲げたり(図１５)するなど任意の形状に構成することができる。 The left and right weeding tools 14L and 14R and the operation levers 13L and 13R for remotely operating them are interlocked and connected via an operation wire 23 and the like, and the front side (front side) around the fulcrum Q of each operation lever 13L and 13R. The left weeding tool 14L is rotated to the left outer side and the right weeding tool 14R is rotated to the right outer side by a pulling operation from the rear to the rear). Note that when the operation levers 13L and 13R are pushed forward, the left and right weeding tools 14L and 14R return to the closed state of the two-row cutting work posture. Further, the left and right operation levers 13L and 13R are disposed in the vicinity of the side of the auxiliary transmission lever 11 on the side operation box 7 side, and are disposed in parallel in the left-right direction in a front view (see FIG. 12). In addition, the operation lever is bent with the operation lever on one side facing the side (FIG. 13), the left and right levers having different lengths (FIG. 14), so that the user can easily identify the left side and the right side. The left and right levers can be configured in an arbitrary shape such as by bending them laterally in opposite directions (FIG. 15).

また、図４に示すように、左右の分草具１４Ｌ，１４Ｒは、それらの先端部が刈刃１６の端部、つまり、左右の分草支持フレーム２１Ｌ，２１Ｒを基準として内側と外側とに回動変位するようになっており、分草具１４Ｌ，１４Ｒ後部のフレーム部が分草支持フレーム２１Ｌ，２１Ｒに対して大きく屈折しないように構成しているので、分草具１４Ｌ，１４Ｒから分草支持フレーム２１Ｌ，２１Ｒに亘って穀稈の株元を円滑に案内できる。 Further, as shown in FIG. 4, the left and right weeding tools 14L and 14R have their tips at the ends of the cutting blade 16, that is, inside and outside with reference to the left and right weeding support frames 21L and 21R. Since the frame portion of the rear part of the weeding tools 14L and 14R is configured not to be greatly refracted with respect to the weeding support frames 21L and 21R, it is separated from the weeding tools 14L and 14R. It is possible to smoothly guide the cereal stocks over the grass support frames 21L and 21R.

刈刃装置１６の左右幅を、各々前記開状態とした前記左右の分草具１４Ｌ，１４Ｒの先端間隔よりも狭く設定したので、刈取装置４に導入する穀稈を、通常の刈取条数から、この条数に加えて２条分の穀稈を刈取りできるものでありながら、刈刃装置１６の左右幅を穀稈の切断性能に支障がない範囲で狭くすることで、刈刃装置１６が発生させる振動や騒音を低減することができる。加えて、刈取装置４をコンパクトに構成でき、旋回時に刈取装置４が周囲の畦畔等に接触し難く、操作性の優れたコンバインを提供することができる。 Since the left and right widths of the cutting blade device 16 are set to be narrower than the distance between the tip ends of the left and right weeding tools 14L and 14R in the open state, the grain culm introduced into the reaping device 4 can be reduced from the normal number of reaping lines. In addition to this number of rows, the cutting blade device 16 can be trimmed, and the cutting blade device 16 can be cut by narrowing the left and right widths of the cutting blade device 16 within a range that does not hinder the cutting performance of the wheat straw. Vibration and noise to be generated can be reduced. In addition, the harvesting device 4 can be configured in a compact manner, and the harvesting device 4 is less likely to come into contact with the surrounding shore during turning, so that a combine with excellent operability can be provided.

また、刈刃装置１６の左右幅を、各々前記閉状態とした左右の分草具１４Ｌ，１４Ｒの先端間隔よりも広く設定したことにより、刈取装置４に導入される刈取対象の穀稈量に対して刈刃装置１６の切断能力に余裕が生まれ、確実に穀稈を刈取ることができる。 Further, by setting the left and right width of the cutting blade device 16 wider than the distance between the tips of the left and right weeding tools 14L and 14R in the closed state, the amount of culm to be harvested to be introduced into the reaping device 4 is set. On the other hand, there is a margin in the cutting ability of the cutting blade device 16, and the cereal can be reliably cut.

また、左右の分草具１４Ｌ，１４Ｒのうち、未刈地側（左側）の分草具１４Ｌは、これを外側方開状態に張出した時、この分草具１４Ｌの先端が未刈地側の走行クローラ２Ｌの外端部よりも外方に位置するように設定している(図５参照)。これによると、未刈地側の穀稈が未刈地側の走行クローラ２Ｌによって踏み込まれるのを防止することができる。加えて、湿田等の軟弱地盤での作業においては、未刈地側の走行クローラ２Ｌが地面に沈下することによって泥が未刈地側に押し退けられるが、分草具１４Ｌの先端及び刈刃装置１６の外側端がこの走行クローラ２Ｌよりも外側方に位置するため、未刈穀稈の株元に泥土を押し上げず、次回の刈取行程の支障にならない。また、図５の例では、左右の分草具１４Ｌ，１４Ｒをそれぞれ外側に同時に開いた状態では、中分草具１４Ｃと左右分草具１４Ｌ，１４Ｒ先端の距離Ａ・Ｂは略同じ距離とし、内側に同時に閉じた状態においても中分草具と左右分草具先端の距離は略同じ距離としている。 Of the left and right weeding tools 14L and 14R, when the weeding tool 14L on the uncut land side (left side) is extended outward, the tip of the weeding tool 14L is on the uncut ground side. The traveling crawler 2L is set to be located outward from the outer end portion (see FIG. 5). According to this, it is possible to prevent the cereal grains on the uncut area from being stepped on by the traveling crawler 2L on the uncut area. In addition, in work on soft ground such as a wet field, the traveling crawler 2L on the uncut ground side sinks to the ground and mud is pushed away to the uncut ground side, but the tip of the weeding tool 14L and the cutting blade device Since the outer end of 16 is located on the outer side of the traveling crawler 2L, mud is not pushed up to the stock of the uncut grain culm, and the next cutting process is not hindered. In the example of FIG. 5, when the left and right weeding tools 14L and 14R are simultaneously opened outward, the distances AB between the middle weeding tool 14C and the left and right weeding tools 14L and 14R are substantially the same distance. Even when closed at the same time, the distance between the middle weed tool and the left and right weed tool tips is substantially the same.

左右の穀稈引起装置１５Ｌ，１５Ｒは、左右対称形状に構成された引起しケース２５と、ケース内上部に架設された駆動スプロケット２６、テンションスプロケット２７及びケース内下部に左右所定間隔をあけて架設された左右ガイドローラ２８ａ，２８ｂと、それらにわたって掛け回した引起ラグ２９付無端チェン３０とから成り立っている。左右引起装置１５Ｌ，１５Ｒの始端側には、引起ラグ２９によって導入された穀稈を外側から内側方の引起し経路Ｙ２側に向けて掻き寄せる横方向所定幅の掻寄せ経路Ｙ１が設けられている。この掻寄せ経路Ｙ１は、所定間隔をあけて配置した左右のガイドローラ２８ａ，２８ｂ間において構成され、そして、この左右ガイドローラ２８ａ，２８ｂ間のローラ間ピッチＰ１を引起ラグ２９，２９間のラグピッチＰ２と略同等に設定することで、この掻寄せ経路Ｙ１中において、複数の引起ラグ２９，２９が下向き作用姿勢で横移動するようになっている。なお、引起し経路Ｙ２では引起ラグ２９が横向き姿勢で上昇移行する。 The left and right grain raising devices 15L and 15R are installed at a predetermined interval between the raising case 25 having a symmetrical shape, the driving sprocket 26, the tension sprocket 27, and the lower portion in the case. The left and right guide rollers 28a and 28b, and the endless chain 30 with the pulling lug 29 hung over them are provided. On the start end side of the left and right pulling devices 15L and 15R, a scraping path Y1 having a predetermined width in the lateral direction is provided to scrape the cereal introduced by the pulling lug 29 from the outside toward the inner pulling path Y2 side. Yes. The scraping path Y1 is configured between the left and right guide rollers 28a and 28b arranged at a predetermined interval, and the inter-roller pitch P1 between the left and right guide rollers 28a and 28b is set as the lag pitch between the raising lugs 29 and 29. By setting substantially the same as P2, a plurality of pull-up lugs 29, 29 are laterally moved in a downward acting posture in the scraping path Y1. In the raising path Y2, the raising lug 29 moves upward in a horizontal posture.

すなわち、引起ラグ２９が、掻寄せ経路Ｙ１の終端位置近傍を移動中、或いは、掻寄せ経路Ｙ１から引起し経路Ｙ２に移行する過程で円弧軌跡を描いて移動中に、穀稈が引起ラグ２９に係合した状態から離脱しても、掻寄せ経路Ｙ１中に他の引起ラグ２９が存在することで穀稈の受け止めができ、引起装置１５Ｌ，１５Ｒでの穀稈の取りこぼしを防止することができる。 That is, while the pulling lug 29 is moving in the vicinity of the end position of the scraping path Y1, or while moving while drawing an arc trajectory in the process of being pulled from the scraping path Y1 and moving to the path Y2, the grain lug 29 Even if it is disengaged from the state where it is engaged, it is possible to catch the cereals by the presence of another raising lug 29 in the scraping path Y1, and to prevent the cereals from being overlooked by the raising devices 15L, 15R. it can.

従って、上記構成の掻寄せ経路Ｙ１によれば、片側に２条の穀稈が導入されても引起し経路Ｙ２内へ確実に掻き寄せることができる。
なお、前記ラグピッチＰ２は、ローラ間ピッチＰ１にガイドローラ２８ａの外周長の４分の１を加えた長さよりも小さくし、望ましくは、ローラ間ピッチＰ１にガイドローラ２８ａの外周長の８分の１を加えた長さよりも小さくする。このようにローラ間ピッチＰ１とラグピッチＰ２とを設定することで、引起装置１５Ｌ，１５Ｒにおける穀稈の取りこぼしを防いで良好に引起すことができるのである。 Therefore, according to the scraping route Y1 having the above-described configuration, even if two cereal grains are introduced on one side, the scraping route Y1 can be raised and reliably scraped into the route Y2.
The lug pitch P2 is smaller than a length obtained by adding a quarter of the outer peripheral length of the guide roller 28a to the inter-roller pitch P1, and preferably, the inter-roller pitch P1 is an eighth of the outer peripheral length of the guide roller 28a. The length should be smaller than 1 plus 1. By setting the inter-roller pitch P1 and the lag pitch P2 in this way, the pulling devices 15L and 15R can be prevented from being missed and can be raised satisfactorily.

また、図６に示したように、前記左右分草具１４Ｌ，１４Ｒを、外側に開いた状態と内側に閉じた状態とのいずれの状態においても、左右分草部１４Ｌ，１４Ｒの正面視における内側端部が、引起ラグ２９の移動軌跡と重合する構成としている。 Further, as shown in FIG. 6, the left and right weeding tools 14L and 14R are viewed from the front of the left and right weeding portions 14L and 14R in either the open state or the closed state. The inner end portion overlaps with the movement trajectory of the pulling lug 29.

引起ラグ２９は、非引起作用側において無端チェン３０に沿う倒伏姿勢で移動し、ガイドローラ２８ａの側方に至ると、このガイドローラ２８ａに当該引起ラグ２９の基部が当接して起立姿勢となるが、左右分草部１４Ｌ，１４Ｒの正面視における内側端部と、起立姿勢の引起ラグ２９の軌跡を重合させたことで、左右分草具１４Ｌ，１４Ｒにより分草された穀稈を起立姿勢となった引起ラグ２９に円滑に引継ぐことができる。 The pulling lug 29 moves in a lying posture along the endless chain 30 on the non-lifting action side. When the pulling lug 29 reaches the side of the guide roller 28a, the base of the pulling lug 29 comes into contact with the guide roller 28a to be in a standing posture. However, by superposing the inner end of the left and right weed portions 14L and 14R in front view and the locus of the raising lug 29 in the standing posture, the cereals that have been weeded by the left and right weeding tools 14L and 14R are raised. It is possible to smoothly take over the raised lug 29.

そして、左右分草部１４Ｌ，１４Ｒを内側に閉じた状態では、ガイドローラ２８ａの軸心位置と左右方向で近接した状態となるので、左右分草部１４Ｌ，１４Ｒと引起ラグ２９との間に、この引起ラグ２９が作用しない領域が殆ど無く、分草案内された刈取対象の穀稈を確実に引起し経路Ｙ２に向けて掻き寄せることができ、穀稈の取りこぼしを可及的に減少させることができる。 When the left and right weed portions 14L and 14R are closed inward, the shaft center position of the guide roller 28a is close to the left and right directions. In addition, there is almost no area where the pulling lug 29 does not act, and it is possible to reliably raise the culm targeted for cutting, which is guided by weeding, and rake it toward the path Y2, thereby reducing the spilling of the culm as much as possible. be able to.

なお、左右分草部１４Ｌ，１４Ｒを内側に閉じた際の当該左右分草部１４Ｌ，１４Ｒの先端位置は、ガイドローラ２８ａの軸心位置と左右方向で同一の位置から、ガイドローラ２８ａの外周側端部から引起ラグ２９の突出長さの半分程度までの距離の範囲にあることが望ましく、この範囲内に配置することで、引起ラグ２９の移動により穀稈に作用する力のうち、穀稈を下方へ押付ける方向への分力よりも、引起し経路Ｙ２方向へ掻き込む方向への分力が大きくなり、穀稈への掻き込み作用を向上させることができる。 Note that the tip positions of the left and right weed portions 14L and 14R when the left and right weed portions 14L and 14R are closed inward are the same as the axial position of the guide roller 28a in the left and right directions, and the outer periphery of the guide roller 28a. It is desirable to be within the range of the distance from the side end portion to about half of the protruding length of the pulling lug 29, and among the forces acting on the cereal by the movement of the pulling lug 29, the grain The component force in the direction of raising and scraping in the direction of the path Y2 becomes larger than the component force in the direction of pressing the cocoon downward, and the action of squeezing into the cereal can be improved.

図１６に示す操作パネル６ａには表示器Ｄが装備されてあり、左右の分草具が片方又は両方「開」の時は、「副変速を低速にして下さい」と云う注意事項が画面に表示されるようになっている。通常、２条刈作業では標準の作業速で行うが、これが３条刈或は４条刈作業になると、能力的に無理な面があるので、作業速度を１段落として低速度で作業することが望ましい。そこで、オペレータはその表示に従って副変速を低速に切り替えて作業すればよい。 The operation panel 6a shown in FIG. 16 is equipped with a display D, and when one or both of the right and left weeding tools are “open”, a notice “Please make the sub-shift to a low speed” appears on the screen. It is displayed. Normally, the two-row cutting operation is performed at the standard operation speed, but if this is a three-row cutting or four-row cutting operation, it is impossible in terms of ability, so work at a low speed with the operation speed as one paragraph. Is desirable. Therefore, the operator may work by switching the sub-shift to a low speed according to the display.

なお、上記の表示器に代えて音声発生器を装備し、音声によってオペレータに報知するものであってもよい。
以上の実施例においては、便宜上２基の引起装置１５Ｌ，１５Ｒを設けた刈取装置４について説明したが、刈取装置４は通常の刈取条数が３条以上であってもよく、その場合は、刈取装置４の通常の刈取条数分の引起装置１５と、掻込装置や搬送装置を設けて、左右最外側に位置する引起装置の外側前方に左右の分草具１４Ｌ，１４Ｒを設け、各引起装置１５の間の前方位置に夫々中分草具１４Ｃを配置すればよい。 Note that a voice generator may be provided instead of the above-described display, and the operator may be notified by voice.
In the above embodiment, for the sake of convenience, the harvesting device 4 provided with the two pulling devices 15L and 15R has been described. However, the harvesting device 4 may have three or more normal harvesting strips, in which case The raising device 15 corresponding to the number of the normal cutting lines of the cutting device 4, the scraping device and the conveying device are provided, and the left and right weeding tools 14L and 14R are provided in front of the outer side of the raising device located at the outermost left and right, What is necessary is just to arrange | position the middle part grass tool 14C in the front position between the raising apparatuses 15, respectively.

２走行クローラ
４刈取装置
１３Ｌ操作レバー
１３Ｒ操作レバー
１４Ｌ左分草具（分草具）
１４Ｒ右分草具（分草具）
１４Ｃ中分草具
１５穀稈引起装置（引起装置）
１６刈刃装置
２５引起しケース
２６駆動スプロケット
２７テンションスプロケット
２８ａガイドローラ
２８ｂガイドローラ
２９引起ラグ
３０無端チェン
３３運転操作部
Ｐ１ローラピッチ
Ｐ２ラグピッチ
Ｙ１穀稈掻寄せ経路（掻寄せ経路）
Ｙ２穀稈引起し経路（引起し経路） 2 traveling crawler 4 mowing device 13L operation lever 13R operation lever 14L left weeding tool (weeding tool)
14R Right weeding tool (weeding tool)
14C Nakabunsou 15 Grain raising device (raising device)
16 Cutting blade device
25 Lifting case
26 Drive sprocket
27 Tension sprocket 28a Guide roller 28b Guide roller 29 Pull-up lug 30 Endless chain 33 Operation part P1 Roller pitch P2 Lug pitch Y1
Y2 cereal wake-up route (wake-up route)

Claims

A cutting device (4) is provided on the front side of the traveling vehicle body (1), and the cutting device (4) includes left and right weeding tools (14L, 14R), a middle weeding tool (14C) disposed between the right and left weeding tools (14L, 14R), and a cutting blade for cutting the stock of the culm raised by the pulling device (15) In the combine with the device (16),
The tip of the right and left weeding tools (14L, 14R) is configured to be repositionable between a closed state located inside the body and an open state located outside the body from the closed state,
The arrangement intervals of the left and right weeding tools (14L, 14R) and the middle weeding tool (14C) in the closed state are set between the left weeding tool (14L) and the middle weeding tool (14C), and , And set the width that can introduce a single grain cereal between the right weeding tool (14R) and the middle weeding tool (14C),
In the open state, each arrangement interval between the left and right weeding tools (14L, 14R) and the middle weeding tool (14C) is between the left weeding tool (14L) and the middle weeding tool (14C), And, between the right weeding tool (14R) and the middle weeding tool (14C), set so that the width of 2 grains each can be introduced ,
The right and left width of the cutting blade device (16) is narrower than the distance between the tips of the left and right weeding tools (14L, 14R) in the open state, and the left and right weeding tools (14L, 14R) in the closed state. Set wider than the tip interval,
On the pulling action side of the left and right pulling devices (15L, 15R) arranged at the left and right ends of the mowing device (4), the cereals that are weeded by the left and right weeding tools (14L, 14R) The raising path (Y2) is formed by the raising lug (29) of the laterally projecting posture that moves to the lower side, and the raising lug (29) of the downward projecting posture is formed at the lower part of the raising device (15L, 15R). Forming a scraping path (Y1) of a predetermined width in the lateral direction that moves in the left-right direction toward the lower end side of the pulling path (Y2)
The pulling device (15) includes a pulling case (25), a drive sprocket (26) and a tension sprocket (27) installed on the left and right above the pulling case (25), and a pulling case (25). Left and right guide rollers (28a, 28b) arranged at a predetermined interval in the left-right direction, and the drive sprocket (26), the tension sprocket (27), and the left and right guide rollers (28a, 28b). Winding an endless chain (30) fitted with a plurality of raised lugs (29);
The lug pitch (P2), which is the mounting interval of the raised lugs (29) with respect to the endless chain (30), is approximately equal to the roller pitch (P1), which is the distance between the left and right guide rollers (28a, 28b). The two raising lugs (29) move in the left and right direction in a downward projecting posture on the scraping path (Y1),
A configuration in which the inner end portions of the left and right weeding tools (14L, 14R) overlap with the movement locus of the raising lug (29) in the standing posture in a front view in both the open state and the closed state. combine, characterized in that the the.

Left and right traveling crawlers (2L, 2R) are provided below the traveling vehicle body (1), and of the left and right weeding tools (14L, 14R), the tip of the left weeding tool (14L) in the open state. The combine according to claim 1 , wherein the position is biased to a position outside the outer end of the left crawler (2L) .

Two operating levers (13L, 13R) for independently switching each of the left and right weeding tools (14L, 14R) between an open state and a closed state are arranged in the driving operation unit (33), and the two operation levers (13L, 13R) is pulled to the rear of the fuselage, the left and right weeding tools (14L, 14R) are in the open state, and when the operating lever (13L, 13R) is pushed forward, the left and right weeding tools ( 14L, 14R) are connected so as to be in the closed state, and the lower portions of the two operation levers (13L, 13R) are in a parallel posture in front view, and one of the two operation levers (13L, 13R) The combine according to claim 1 or 2 , wherein an upper portion of the operating lever (13L) is bent in a direction away from the other operating lever (13R) .