JP2012249549A

JP2012249549A - Reaping device of combine harvester

Info

Publication number: JP2012249549A
Application number: JP2011122804A
Authority: JP
Inventors: Noriyuki Sakamoto; 憲之坂本; Kazuya Okumura; 和哉奥村
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: 2011-05-31
Filing date: 2011-05-31
Publication date: 2012-12-20

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester, capable of neatly gathering and guiding a set reaping number or more of grain stems in a stable position and surely raising them.SOLUTION: In a lower portion of raising devices (15L, 15R), rasing lugs (29) having a downward projecting position are laterally moved toward the lower end of the raising path (Y2) to form a gathering path (Y1) of a predetermined width for gathering the roots of grain stems. The gathering path (Y1) is formed by winding an endless chain (30) having a plurality of raising lugs (29) attached to lateral guide rollers (28a, 28b) disposed with a predetermined space. A lug pitch (P2) that is the attachment interval of the raising lugs (29) to the endless belt (30) is set to be substantially equal to or narrower than a roller pitch (P1) that is an axis-to-axis distance of the lateral guide rollers (28a, 28b).

Description

この発明は、コンバインの刈取装置に関する。 The present invention relates to a combine harvester.

従来、分草後の穀稈を引き起す一対の引起し装置を左右に対向配置し、これらの引起し装置に備えた引起しラグにより、３つの分草具のうちの対応するものの間に導入された穀稈を刈取搬送部の中央側に向けて掻き込み案内する掻込案内領域と掻き込み案内された穀稈を引き起す引起し領域とを形成して、引起し範囲の拡大を図るように構成したものがある（例えば、特許文献１参照）。 Conventionally, a pair of elevating devices for raising the cereals after weeding are arranged opposite to each other and introduced between corresponding ones of the three weeding tools by erecting lugs provided for these elevating devices. Forming a scraping guide area for scrambling and guiding the cereal husk toward the center of the cutting and conveying section and a pulling area for causing the rammed cocoon to be pulled up, thereby enlarging the pulling range (For example, refer to Patent Document 1).

特開２０１０−１０４３４６号公報JP 2010-104346 A

上述の通り、特許文献１に記載された技術は、左側又は右側の引起し装置の掻込案内領域により、１条から最大２条の穀稈を引き起すことができるように構成したものであるが、かかる構成の掻込案内領域では、２つのガイドローラピッチに対してラグの取付ピッチが大きいため、１つのラグしか作用せず、掻込作用が不安定で穀稈の姿勢に乱れを生じる虞がある。
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も安定した姿勢で整然と掻き寄せ案内し、確実に引起すことができるコンバインを提供する。 As described above, the technique described in Patent Document 1 is configured so that one to a maximum of two grain culms can be caused by the left or right pulling device's scraping guide area. However, in the scraping guide region having such a configuration, since the mounting pitch of the lug is larger than the two guide roller pitches, only one lug acts, the scraping action is unstable, and the posture of the cereal is disturbed. There is a fear.
An object of the present invention is to provide a combine that solves the above-mentioned problems and can steadily scrape and guide cereals of a set number or more than the set number of cutting lines in a stable posture and cause them to occur reliably.

この発明は、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、刈取装置（４）の左右両側端部に配置した左右の引起装置（１５Ｌ，１５Ｒ）の内側に、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横向き突出姿勢で移動する引起しラグ（２９）によって引起す引起し経路（Ｙ２）を形成し、引起装置（１５Ｌ，１５Ｒ）の下部側には、多数の引起しラグ（２９）を取り付けた無端チェン（３０）を巻き掛ける左右のガイドローラ（２８ａ，２８ｂ）を軸支することで、下向き突出姿勢の引起しラグ（２９）が引起し経路（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所定幅の掻寄せ経路（Ｙ１）を形成し、前記左右のガイドローラ（２８ａ，２８ｂ）の軸間距離（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（Ｐ２）を略同間隔に設定するか、又は左右のガイドローラ（２８ａ，２８ｂ）の軸間距離（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（Ｐ２）を狭く設定したことを特徴とするコンバインの刈取装置とする。
左右のガイドローラ（２８ａ，２８ｂ）の軸間距離（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（Ｐ２）を略同間隔に設定するか、又は、狭く設定したことで、掻寄せ経路（Ｙ１）においては、穀稈に複数の引起ラグ（２９）を作用させる。
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、穀稈を安定した姿勢で整然と掻き寄せ、引起すことができる。
請求項２記載の発明は、前記左右の引起装置（１５Ｌ，１５Ｒ）で引起された穀稈を後方の刈刃装置（１６）側に向けて掻込搬送する掻込搬送装置（１７）を設け、該掻込装置（１７）の前部に刈取装置（４）の左右両側端側から中央側に向けて穀稈の株元を掻寄せる横送り経路（Ｙａ，Ｙｂ）を形成したことを特徴とする請求項１記載のコンバインの刈取装置とする。
上記構成によると、引起しラグ（２９）による掻き寄せ作用と、掻込装置（１７）による横送り作用が共同して行え、刈取条数が増えても中央側の引起し経路（Ｙ２）まで確実に係止搬送することができる。
請求項３記載の発明は、前記横送り経路（Ｙａ，Ｙｂ）を、引起装置（１５）の掻寄せ経路（Ｙ１）を移動する引起しラグ（２９）よりも高い位置に配置したことを特徴とする請求項１又は請求項２記載のコンバインの刈取装置とする。
上記構成によると、掻き寄せ経路（Ｙ１）中の引起しラグ（２９）は穀稈の株元側を係止し、横送り経路（Ｙａ），（Ｙｂ）中の掻込ラグ（３７）はそれよりも上部の穀稈穂先側を係止保持して掻き寄せ搬送するので、穀稈の安定した姿勢が確保され、中央側の引起し経路内に整然と掻き寄せ搬送することができる。
請求項４記載の発明は、前記横送り経路（Ｙａ，Ｙｂ）は、所定間隔をおいて配置した左右２つのプーリ（４１ａ，４１ｂ）間に複数のラグ（３７）を備える掻込ベルト（３６）を巻回して形成し、該左右のプーリ（４１ａ，４１ｂ）間のプーリ間ピッチ（Ｌ１）を掻込ラグ（３７，３７）間のラグピッチ（Ｌ２）よりも大きく設定したことを特徴とする請求項１から請求項３のいずれか一項に記載のコンバインの刈取装置とする。
上記構成によると、掻き寄せ経路（Ｙ１）中における引起しラグ（２９）の作用と同様に、横送り経路（Ｙａ，Ｙｂ）中にあっても、複数の掻込ラグ（３７，３７）によって掻き寄せるので、穀稈は安定よく支持された状態にあり、中央側に寄せながら整然と掻き込み搬送することができる。
請求項５記載の発明は、前記掻込ベルト（３６）の上側に、横送り経路（Ｙａ，Ｙｂ）と平行に移動する横搬送チェン（４３）を設け、該横搬送チェン（４３）には複数の係止爪（４２）を設けたことを特徴とする請求項４記載のコンバインの刈取装置とする。
上記構成によると、引起し装置（１５）の引起しラグ（２９）と掻込ベルト（３６）の掻込ラグ（３７）と横搬送チェン（４３）の係止爪（４２）との三者によって掻き寄せ搬送することができるので、更に安定した姿勢を保持でき、所定位置まで整然と確実に掻き寄せ搬送することができる。 In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention described in claim 1 is divided by the right and left weeding tools (14L, 14R) inside the left and right pulling devices (15L, 15R) arranged at the left and right ends of the reaping device (4). An erecting path (Y2) is formed by the elevating lug (29) that moves the cereals from below to above in a laterally projecting posture, and a large number of erecting paths are formed on the lower side of the elevating devices (15L, 15R). By pivotally supporting the left and right guide rollers (28a, 28b) around which the endless chain (30) with the lug (29) attached is wound, the raising lug (29) in the downward projecting posture is raised, and the lower end of the path (Y2) Forming a scraping path (Y1) of a predetermined width that moves in the left-right direction toward the side and scrapes the stocks of the cereals, with respect to the inter-axis distance (P1) of the left and right guide rollers (28a, 28b) Raising the endless chain (30) The mounting interval (P2) of (29) is set to substantially the same interval, or the raising lug (29) for the endless chain (30) with respect to the inter-axis distance (P1) of the left and right guide rollers (28a, 28b) A combine harvester characterized in that the mounting interval (P2) is set narrow.
The mounting interval (P2) of the raising lug (29) with respect to the endless chain (30) is set to be substantially the same or narrow with respect to the distance (P1) between the left and right guide rollers (28a, 28b). By setting, in the scraping route (Y1), a plurality of pulling lugs (29) are caused to act on the cereal.
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 the cocoon, it can rake up and raise the cereals in a stable posture.
The invention according to claim 2 is provided with a scraping / conveying device (17) for stroking and conveying the cereal raised by the left and right pulling devices (15L, 15R) toward the rear cutting blade device (16). The traversing path (Ya, Yb) for scraping the stock of cereals from the left and right sides of the reaping device (4) toward the center is formed in the front portion of the scraping device (17). A combine harvester according to claim 1.
According to the above configuration, the pulling action by the raising lug (29) and the lateral feeding action by the scraping device (17) can be performed jointly, and even when the number of cutting lines increases, the central raising path (Y2) It can be reliably locked and conveyed.
The invention according to claim 3 is characterized in that the transverse feed path (Ya, Yb) is arranged at a position higher than the raising lug (29) that moves the scraping path (Y1) of the raising device (15). A combine harvester as defined in claim 1 or claim 2.
According to the above configuration, the raising lug (29) in the scraping path (Y1) locks the stock side of the cereal basket, and the scraping lug (37) in the lateral feed paths (Ya) and (Yb) is Since the upper side of the cedar head is locked and held, the stable posture of the cereal is ensured, and it can be raked and transported in an orderly manner in the central path.
According to a fourth aspect of the present invention, the lateral feed path (Ya, Yb) is a scraping belt (36) including a plurality of lugs (37) between two left and right pulleys (41a, 41b) arranged at a predetermined interval. ) And the pitch (L1) between the left and right pulleys (41a, 41b) is set larger than the lug pitch (L2) between the take-up lugs (37, 37). It is set as the combine harvester as described in any one of Claims 1-3.
According to the above configuration, similarly to the action of the raising lug (29) in the scraping path (Y1), even in the lateral feed path (Ya, Yb), the plurality of scraping lugs (37, 37). Since it is scraped, the cereals are in a state of being stably supported, and can be scraped and conveyed in an orderly manner while approaching the center side.
According to a fifth aspect of the present invention, a horizontal conveyance chain (43) that moves parallel to the lateral feed path (Ya, Yb) is provided on the upper side of the scraping belt (36). The combine mowing device according to claim 4, wherein a plurality of locking claws (42) are provided.
According to the above configuration, the raising lug (29) of the raising device (15), the take-up lug (37) of the take-up belt (36), and the locking claw (42) of the lateral conveying chain (43). Therefore, it is possible to maintain a more stable posture, and to neatly and reliably transport to a predetermined position.

請求項１記載の発明によれば、掻寄せ経路（Ｙ１）中で複数の引起ラグ（２９）が穀稈に作用することになるので、左右の分草具（１４Ｌ，１４Ｒ）の間に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、穀稈を安定した姿勢で整然と掻き寄せ、引起すことができる。
請求項２記載の発明によれば、請求項１記載の発明による効果に加えて、引起しラグ（２９）による掻き寄せ作用と、掻込搬送装置（１７）による横送り作用が共同して行え、刈取条数が増えても中央側の引起し経路（Ｙ２）まで確実に搬送することができる。
請求項３記載の発明によれば、請求項１又は請求項２記載の発明による効果に加えて、穀稈の株元側と穂先側の２点支持によって係止搬送するので、穀稈を安定した姿勢に確保でき、中央側の引起し経路（Ｙ２）内に整然と掻き寄せ搬送することができる。
請求項４記載の発明によれば、請求項１から請求項３のいずれか一項に記載の発明による効果に加えて、横送り経路（Ｙａ，Ｙｂ）中にあっては、複数の掻込ラグによって穀稈は一層安定よく支持された状態となり、中央側に寄せながら整然と掻き込み搬送することができる。
請求項５記載の発明によれば、請求項４に記載の発明による効果に加えて、引起装置（１５Ｌ，１５Ｒ）の引起しラグ（２９）と掻込ベルト（３６）の掻込ラグ（３７）と横搬送チェン（４３）の係止爪（４２）との三者によって掻き寄せ搬送することができるので、更に安定した姿勢を保持でき、所定位置まで整然と確実に掻き寄せ搬送することができる。 According to the first aspect of the present invention, since the plurality of pulling lugs (29) act on the culm in the scraping path (Y1), the grain between the right and left weeding tools (14L, 14R) Even if the culm that has been scraped by the pulling lug (29) that is moving along the scraping path (Y1) after the paddy has been introduced may be detached from the pulling lug (29), it will follow the pulling lug (29). Thus, the culm can be received by the other pulling lugs (29) that are moving, and the culm can be scraped and raised in a stable posture in an orderly manner.
According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the pulling-up action by the pulling lug (29) and the lateral feeding action by the pick-up conveying device (17) can be performed jointly. Even if the number of cutting lines increases, it can be reliably transported to the pulling path (Y2) on the center side.
According to invention of Claim 3, in addition to the effect by the invention of Claim 1 or Claim 2, since it carries and carries by the two-point support of the stock source side and the tip side of the cereal, the cereal can be stabilized. Can be secured, and can be scraped and conveyed in an orderly manner in the pulling path (Y2) on the center side.
According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, in the transverse feed path (Ya, Yb), a plurality of scratches are provided. The cereal is more stably supported by the lag, and can be transported in an orderly manner while approaching the center side.
According to the fifth aspect of the invention, in addition to the effect of the fourth aspect of the invention, the pulling lug (29) of the pulling device (15L, 15R) and the scraping lug (37) of the scraping belt (36). ) And the latching claw (42) of the lateral transfer chain (43) can be scraped and transported, so that a more stable posture can be maintained, and the transport can be scraped and transported to a predetermined position in an orderly and reliable manner. .

コンバインの平面図Top view of the combine コンバインの側面図Combine side view コンバインの正面図Combine front view 刈取部の要部の正面図Front view of the main part of the mowing unit 刈取部の要部の側面図Side view of the main part of the cutting part 刈取部の要部の平面図Plan view of the main part of the cutting part 刈取部の要部の平面図Plan view of the main part of the cutting part 刈取部の要部の正面図Front view of the main part of the mowing unit 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 引起し装置の一部の正面図Front view of part of the pulling device 引起し装置の一部の正面図Front view of part of the pulling device 刈取部の要部の側面図Side view of the main part of the cutting part 刈取部の要部の平面図Plan view of the main part of the cutting part 刈取部の要部の平面図Plan view of the main part of the cutting part

この発明の実施例を図面に基づき説明する。
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（刈取部）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。
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。
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。
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。
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、引起し圏内に導入された穀稈を刈刃前方から後方に向けて掻込搬送する掻込ベルや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。
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。
図８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。
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９参照)、３条刈作業が可能となる。
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１０参照)、上記と同様に３条刈作業ができるようになっている。
そして、図１１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。
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。
２条刈りの作業（図８）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。
３条刈りの作業のうち、図９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。
図１０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。
４条刈りの作業（図１１）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。
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。
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。
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。
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。
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。
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。
また、図４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、左右分草具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。
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、左右分草具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。
そして、左右分草具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、左右分草具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。
なお、左右分草具１４Ｌ，１４Ｒを内側に閉じた際の当該左右分草具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。
また、前記引起しラグ２９は、起立姿勢においてチェンの移動方向に略直交する引起し作用部２９ａと、起立姿勢においてチェンレールに摺接する摺動部２９ｂとからなるが、従来は摺動部２９ａの摺動面と引起し作用側面とが角形状（図１２参照）に形成されていた。ラグピッチ間とラグの長さが略同一の場合であると、ラグ先端と、ラグ基端側における摺動部の角形部がキンクを起してしまう問題があった。本例では、図１３に示すように、摺動部２９ａの角形部を斜めにカットして傾斜部２９ｔを設けることで、キンク位置にラグが収納されてもキンクすることがなく、ラグ長さを変えることなく使用が可能となる。なお、傾斜部２９ｔは、引起しケース２５のラグ突出側端部２５ｅからラグ枢支軸３４までの傾斜部とする。
掻込搬送装置１７は、掻込スターホイル３５や掻込ベルト３６等からなるが、掻込ベルト３６は、引起し圏内に導入された穀稈を所定間隔置きに突設した掻込ラグ３７により係止保持して後方の刈刃１６側に向け、且つこれより後方側まで掻込搬送するものであり、掻込スターホイル軸３８に架設された駆動プーリ４０と、掻込ケース３９の前端部に左右所定間隔をあけて架設された左右プーリ４１ａ，４１ｂとにわたって掛け回され、左右引起し装置１５Ｌ，１５Ｒの背部に配置されている。
左右の掻込ベルト３６，３６の始端側には、左右側から中央側に向けて係止搬送する横送り経路Ｙａ，Ｙｂが形成され、横送り経路Ｙａ，Ｙｂは、所定間隔をあけて配置した左右のプーリ４１ａ，４１ｂ間において構成され、そして、この左右プーリ４１ａ，４１ｂ間のプーリ間ピッチＬ１を掻込ラグ３７，３７間のラグピッチＬ２より大きくすることで、この横送り経路Ｙａ，Ｙｂ中において、必ず複数の掻込ラグ３７，３７が横移動する構成になっている。また、この横送り経路Ｙａ，Ｙｂは、引起し装置１５の掻寄せ経路Ｙ１と並行に対応位置し、且つ、引起しラグによる作用位置よりも穀稈の上部側（穂先側）を係止搬送するようになっている。
また、掻込ベルトの横送り経路Ｙａ，Ｙｂに対応する上側（又は下側）には、係止爪４２付き横搬送チェン４３（図６参照）が設けられてあり、この横搬送チェン４３の係止爪４２と引起し装置の引起しラグ２９と掻込ベルトの掻込ラグ３７との三者によって掻き寄せ搬送することができるようになっている。
揚上搬送装置１８は、始端側が終端側の横軸芯を回動支点として上下方向に位置変更可能に構成されてあり、穀稈の長短に応じて扱室内への供給深さが任意に調節できるようになっている。
図１４乃至図１６に示すのは、刈取装置４を機体に対して左右に移動可能な構成としたコンバインである。
刈取装置４は、横方向の支持軸Ｘを支点として前側部位を上下に回動自在に機体に支持される後支持フレーム３１いる。この後支持フレーム３１の先端部には横支持フレーム３２の左右中間部が支持され、横支持フレーム３２から前方へ向けて分草支持フレーム２１を複数突出させている。後支持フレーム３１と横支持フレーム３２との間には、後支持フレーム３１側のスプロケット（図示省略）と横支持フレーム３２側のスプロケット（図示省略）と、この２つのスプロケットに巻き掛けたチェン（図示省略）とを内装する連結ギアケース５１を設けており、連結ギアケース５１は、後支持フレーム３１と横支持フレーム３２に対して、２つのスプロケットの回転軸で回転自在な構成である。そして、後支持フレーム３１の中間部には横連結フレーム５２の基端部を固着し、この横連結フレーム５２の先端部に第一リンク軸５２ａで揺動リンクアーム５３の一端を取付ける。揺動リンクアーム５３の他端は前記横支持フレーム３２に第二リンク軸５３ａで取付ける。
しかして、刈取装置４は、連結ギアケース５１、揺動リンクアーム５３、横連結フレーム５２及び横支持フレーム３２からなる４点リンク機構により、後支持フレーム３１に対して左右に位置変更可能に構成される。そして前述の揚上搬送装置１８は、刈取装置４の左右移動に追従して先端部が左右に変位する構成としている。
具体的には、右側引起し装置１５Ｒの引起しケース２５の上端背部位置から下方の掻込搬送装置１７の支持部材４９間にわたってガイドレール４５が立設され、前記揚上搬送装置１８の支持フレーム５０の前端部位から前方に突設した支持ステー４６には、ガイドレール４５に沿わせて案内するための長穴状の案内溝４７を形成したガイド部材４８が一体的に設けられている。そして、このガイド部材４８を前記ガイドレール４５に挿通することにより、揚上搬送装置１８の始端部がガイドレール４５に沿って規制案内されるようになっている。なお、ガイドレール４５の下端部は支持部材４９に回動自在に取り付けられ、ガイドレール４５の上端部は引起し装置１５の背面に設けた案内パイプ５４に摺動自在に挿入されている。
刈取装置４を左右に位置変更すると、引起し装置１５や掻込搬送装置１７と、揚上搬送装置１８との位置関係が変化するが、ガイドレール４５が案内パイプ５４に摺動し、融通することで、揚上搬送装置１８の上下回動が円滑となり、揺動搬送装置１８やガイドレール４５の破損を防止することができ、適正に脱穀装置へ供給する穀稈の供給深さを調節できることで、脱穀処理効率の低下を防止することができる。 An embodiment of the present invention will be described with reference to the drawings.
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. A reaping device (reaping portion) 4 is installed in front of the threshing portion 3, and a driver's seat 5, a front operation box 6 on the front side of the driver's seat, and a driver's seat left side A driving operation unit 33 including the side operation box 7 is provided, and a Glen tank G for temporarily storing threshing grains is provided behind the driving operation unit 33.
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.
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.
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.
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), a clipper-type cutting blade device 16 that cuts the cedar after raising, a scraping bell that rakes and conveys the cereal that has been raised and introduced into the area from the front of the cutting blade to the rear It is equipped with a scraping and transporting device 17 such as a star wheel, a lifting transporting device 18 and the like that feeds the cereal mash after being transported to the threshing unit.
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.
As shown in FIG. 8, when performing normal two-row cutting work, 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.
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. Then, 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. 9), and three-row cutting work becomes possible. .
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 the first cereal introduced between the middle parting tool 14C and the closed left parting tool 14L (see FIG. 10), In addition, it is possible to perform three-row cutting work.
As shown in FIG. 11, 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 middle 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.
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.
In the two-row cutting work (FIG. 8), 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.
In the work shown in FIG. 9 among the three-row cutting work, the culm K for planting the left weeding tool 14L in the field is placed inside 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.
10 is suitable for so-called splitting work in which the uncut grain culms are positioned on 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.
In the 4-row mowing operation (FIG. 11), it is possible to mow 4 rows of cereals with the double-row culm pulling devices 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.
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.
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.
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 operation levers 13L and 13R are pulled toward the front side (front to rear). By the operation, the left weeding tool 14L is configured to rotate to the left outer side, and the right weeding tool 14R is rotated to the right outer side.
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.
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.
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.
In addition, as shown in FIG. 4, the left and right weeding tools 14L and 14R can be seen in a front view of the left and right weeding tools 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.
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 ends of the right and left weeding tools 14L and 14R in the 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.
When the left and right weeding tools 14L and 14R are closed to the inside, they are close to the axial center position of the guide roller 28a in the left and right directions, and therefore, between the left and right weeding tools 14L and 14R and the pulling lug 29. 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.
Note that the tip positions of the left and right weed tools 14L and 14R when the left and right weed tools 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.
The raising lug 29 includes a raising action portion 29a that is substantially orthogonal to the movement direction of the chain in the standing posture, and a sliding portion 29b that is in sliding contact with the chain rail in the standing posture. The sliding surface and the raising side surface were formed in a square shape (see FIG. 12). When the lug pitch is substantially the same as the length of the lug, there is a problem in that the leading end of the lug and the square portion of the sliding portion on the base end side of the lug cause kinking. In this example, as shown in FIG. 13, the rectangular portion of the sliding portion 29a is cut obliquely to provide the inclined portion 29t, so that even if the lug is stored in the kink position, it does not kink, and the lug length Can be used without changing The inclined portion 29t is an inclined portion from the lug protrusion side end portion 25e of the case 25 to the lug pivot shaft 34.
The take-up conveying device 17 includes a take-up star wheel 35, a take-up belt 36, and the like. The take-up belt 36 is formed by a take-up lug 37 that protrudes and introduces cereal straws introduced into the area at predetermined intervals. The holding pulley is held toward the rear cutting blade 16 side and is driven to be conveyed to the rear side. The driving pulley 40 installed on the driven star wheel shaft 38 and the front end portion of the driven case 39 The left and right pulleys 41a and 41b are installed at predetermined intervals on the left and right sides, and are arranged on the backs of the left and right pulling devices 15L and 15R.
Lateral feed paths Ya and Yb for locking and conveying from the left and right sides to the center side are formed on the start ends of the left and right scratching belts 36 and 36, and the lateral feed paths Ya and Yb are arranged at a predetermined interval. The lateral feed paths Ya and Yb are configured by making the pitch L1 between the left and right pulleys 41a and 41b larger than the lug pitch L2 between the take-up lugs 37 and 37. In the inside, the plurality of scrambling lugs 37, 37 are always configured to move laterally. Further, the lateral feed paths Ya and Yb are positioned correspondingly in parallel with the scraping path Y1 of the pulling device 15, and the upper side (the tip side) of the cereal is locked and conveyed from the position where the pulling lug is applied. It is supposed to be.
Further, on the upper side (or the lower side) corresponding to the lateral feed paths Ya and Yb of the scraping belt, a lateral conveyance chain 43 with a locking claw 42 (see FIG. 6) is provided. The locking claw 42, the pulling lug 29 of the pulling device, and the scraping lug 37 of the scraping belt can be scraped and conveyed.
The lifting and conveying device 18 is configured such that the start end side can be changed in the vertical direction with the horizontal axis on the end side as a rotation fulcrum, and the supply depth into the handling chamber is arbitrarily adjusted according to the length of the cereal. It can be done.
FIG. 14 to FIG. 16 show a combine in which the reaping device 4 is configured to be movable to the left and right with respect to the airframe.
The reaping device 4 includes a rear support frame 31 that is supported by the machine body so that the front portion can be turned up and down with the horizontal support shaft X as a fulcrum. Thereafter, the left and right intermediate portions of the horizontal support frame 32 are supported at the tip of the support frame 31, and a plurality of weed support frames 21 protrude from the horizontal support frame 32 forward. Between the rear support frame 31 and the lateral support frame 32, a sprocket (not shown) on the rear support frame 31 side, a sprocket on the lateral support frame 32 side (not shown), and a chain ( The connecting gear case 51 is provided so as to be rotatable with respect to the rear support frame 31 and the lateral support frame 32 by the rotation axes of the two sprockets. Then, a base end portion of the lateral connection frame 52 is fixed to an intermediate portion of the rear support frame 31, and one end of the swing link arm 53 is attached to a distal end portion of the lateral connection frame 52 by the first link shaft 52a. The other end of the swing link arm 53 is attached to the lateral support frame 32 by a second link shaft 53a.
Thus, the reaping device 4 is configured such that its position can be changed to the left and right with respect to the rear support frame 31 by a four-point link mechanism including the connection gear case 51, the swing link arm 53, the horizontal connection frame 52, and the horizontal support frame 32. Is done. And the above-mentioned lifting conveyance apparatus 18 is set as the structure which a front-end | tip part displaces right and left following the left-right movement of the cutting apparatus 4. FIG.
Specifically, a guide rail 45 is erected from the position of the upper end of the raising case 25 of the right raising device 15R to the support member 49 of the lower conveying device 17 so that the support frame of the lifting conveying device 18 is supported. A guide member 48 having an elongated hole-shaped guide groove 47 for guiding along the guide rail 45 is integrally provided on the support stay 46 projecting forward from the front end portion 50. Then, by inserting the guide member 48 into the guide rail 45, the starting end portion of the lifting and conveying device 18 is regulated and guided along the guide rail 45. The lower end portion of the guide rail 45 is rotatably attached to the support member 49, and the upper end portion of the guide rail 45 is slidably inserted into a guide pipe 54 provided on the back surface of the device 15.
When the position of the reaping device 4 is changed to the left and right, the positional relationship between the raising device 15, the scraping and conveying device 17, and the lifting and conveying device 18 changes, but the guide rail 45 slides on the guide pipe 54 and is flexible. Thus, the up-and-down conveyance device 18 can be smoothly turned up and down, damage to the oscillating conveyance device 18 and the guide rail 45 can be prevented, and the supply depth of the cereals supplied to the threshing device can be adjusted appropriately. Thus, a decrease in the threshing efficiency can be prevented.

４刈取装置（刈取部）
１４Ｌ左分草具
１４Ｒ右分草具
１４Ｃ中分草具
１５穀稈引起し装置
１６刈刃装置
２８ガイドローラ
２９引起しラグ
３０無端チェン
３６掻込ベルト
３７掻込ラグ
４１プーリ
４２係止爪
４３横搬送チェン
Ｙ１穀稈掻き寄せ経路
Ｙ２穀稈引起し経路
Ｙａ掻込横送り経路
Ｙｂ掻込横送り経路 4 Mowing device (reaping part)
14L Left weed tool 14R Right weed tool 14C Middle weed tool 15 Grain raising device 16 Cutting blade device 28 Guide roller 29 Raising lug 30 Endless chain 36 Scraping belt 37 Scratching lug 41 Pulley 42 Locking claw 43 Horizontal transfer chain Y1 Grain mashing route Y2 Grain wake raising route
Ya Scratch lateral feed path Yb Scratch lateral feed path

Claims

On the inside of the left and right pulling devices (15L, 15R) arranged at the left and right ends of the mowing device (4), the cereals that have been weeded by the left and right weeding tools (14L, 14R) project sideways from below to above An erecting path (Y2) that is caused by an elevating lug (29) that moves in a posture is formed, and an endless chain (with a number of elevating lugs (29) attached to the lower side of the elevating device (15L, 15R) ( 30) By pivotally supporting the left and right guide rollers (28a, 28b) around which the raising lug (29) in the downward projecting posture is raised and moved in the left-right direction toward the lower end side of the path (Y2) A rake path (Y1) having a predetermined width for squeezing the stock of grain cereal is formed, and the lug for the endless chain (30) with respect to the inter-axis distance (P1) of the left and right guide rollers (28a, 28b) (29) mounting interval (P2) The distance between the left and right guide rollers (28a, 28b) (P1) is set to be substantially the same distance, or the pulling lug (29) mounting interval (P2) is set narrower than the endless chain (30). Combine harvester characterized by that.

There is provided a scraping / conveying device (17) that scrapes and conveys the cereals that are raised by the left and right pulling devices (15L, 15R) toward the rear cutting blade device (16), and the scraping device (17). The combine according to claim 1, characterized in that a transverse feed path (Ya, Yb) for scraping the roots of the cereals from the left and right sides of the reaping device (4) toward the center is formed in the front part of the reaping machine. Reaping device.

The transverse feed path (Ya, Yb) is arranged at a position higher than the pulling lug (29) that moves the scraping path (Y1) of the pulling device (15). 2. Combine harvester according to 2.

The transverse feed path (Ya, Yb) is formed by winding a scraping belt (36) having a plurality of lugs (37) between two left and right pulleys (41a, 41b) arranged at a predetermined interval, The pitch (L1) between the pulleys between the left and right pulleys (41a, 41b) is set to be larger than the lug pitch (L2) between the take-up lugs (37, 37). The combine harvester as described in any one of Claims.

A horizontal conveyance chain (43) that moves in parallel with the lateral feed path (Ya, Yb) is provided on the upper side of the scraping belt (36), and the lateral conveyance chain (43) has a plurality of locking claws (42). The combine harvester according to claim 4, wherein the combine harvester is provided.