JP4626080B2

JP4626080B2 - Harvesting machine

Info

Publication number: JP4626080B2
Application number: JP2001103524A
Authority: JP
Inventors: 石田　　伊佐男
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2001-04-02
Filing date: 2001-04-02
Publication date: 2011-02-02
Anticipated expiration: 2021-04-02
Also published as: JP2002291317A

Description

【０００１】
【発明の属する技術分野】
本発明は、地上部分に最終収穫物がついている枝豆等の作物体を圃場から抜取る収穫機の技術分野に属する。
【０００２】
【従来の技術】
従来、枝豆等の収穫作業は、圃場に生育する作物体を作業者が直接抜取って行っていた。
【０００３】
【発明が解決しようとする課題】
上記のように、従来の枝豆等の収穫作業は、人力によっていたので、非常に労力を要する作業であった。従って、本発明は、この作業の省力化を図ることを課題とするものである。
なお、枝豆等の作物体は、作物体の地上部分に最終収穫物となる枝豆等がついているので、作物体を圃場から抜取るときに枝豆等の最終収穫物が落ちたり傷ついたりすることがないようにしなければならない。
作物体の根本側の茎部を挟持して抜き取れば、最終収穫物を傷つけずに作物体収穫することができるが、収穫する作物体の背が高いと、搬送中に左右に倒れてしまい、作物体の搬送が滞り、作業能率が低下するという問題がある。
搬送装置に作物体が挟持される位置よりも上側位置で作物体を左右から支持して搬送する補助搬送装置を設ければ、搬送中に作物体が左右に倒れることを防止できるが、補助搬送装置に駆動力を供給する駆動機構が複雑になるという問題がある。
さらに、作物体を抜き取る搬送装置と補助搬送装置の間に作物体が通過する空間部に確保されていないと、作物体の枝葉や最終収穫物の移動を補助搬送装置が妨げてしまい、作業能率が低下するという問題がある。
【０００４】
【課題を解決するための手段】
本発明は、上記課題を解決するために、以下のように構成した。
請求項１記載の発明は、作物体の根本側の茎部を挟んで上方に搬送して該作物体を圃場から抜取る抜取り搬送装置（２）と、該抜取り搬送装置（２）の上側で作物体を上方に搬送する上部搬送装置（１５）とから作業部（Ｗ）を構成し、該作業部（Ｗ）の前部下側に、作業部（Ｗ）を支持する支持輪（３４，３４）を設け、機体の後部には左右一対の車輪（３，３）を設け、操縦ハンドル（８）の左右グリップ部（９，９）が機体後端に位置するように、該操縦ハンドル（８）を機体の後部に設け、該操縦ハンドル（８）の近くに前記支持輪（３４，３４）の上下高さを調節する操作具（３５）を設け、前記上部搬送装置（１５）の上側に、上部搬送装置（１５）が作物体を支持する部分よりも上側で作物体を左右から支持して機体側方に案内する支持部材（４５，４５）を設け、該支持部材（４５，４５）の後部を機体左側方に屈曲させ、前記抜取り搬送装置（２）の後部に支持部材（４５，４５）から機体側方に案内される作物体を受ける受け台（４８）を設け、前記抜取り搬送装置（２）の先端部に前下り姿勢の左右ガイド体（４６，４６）を設け、該ガイド体（４６，４６）の前端部を抜取り搬送装置（２）よりも前側且つ下方に延ばして作物体の根本側の茎部の左右側方に入り込んで作物体の下部側をガイド体（４６，４６）の上面板部分（４７，４７）によって持ち上げる構成とし、前記抜取り搬送装置（２）を左右に並べた第１搬送ベルト（１７，１７）の外周面を互いに接触あるいは近接させて構成し、前記上部搬送装置（１５）を外周面に作物体を搬送する複数のラグ（１６ａ…，１６ａ…）を設けた第２搬送ベルト（１６，１６）を左右に並べて構成し、該第２搬送ベルト（１６，１６）の左右の間隔を第１搬送ベルト（１７，１７）の左右の間隔よりも広くしたことを特徴とする収穫機としたものである。
【０００５】
請求項２記載の発明は、機体の後部にエンジン（４）を設け、該エンジン（４）にミッションケース（５）を連結して設け、該ミッションケース（５）の動力を伝動する左右の駆動軸（２３，２３）を設け、該駆動軸（２３，２３）の上端側に前記抜取り搬送装置（２）の第１プーリ（２０，２０）を軸着し、該第１プーリ（２０，２０）から上方に突出した前記駆動軸（２３，２３）にそれぞれ伝動ケース（２４，２４）を斜め外側上方に延ばして設け、該伝動ケース（２４，２４）の上面に伝動軸（２６，２６）を上方に延ばして設け、該伝動軸（２６，２６）の上端部に上部搬送装置（１５）の第２プーリ（３０，３０）を軸着したことを特徴とする請求項１記載の収穫機としたものである。
【０００６】
【０００７】
【作用】
請求項１記載の発明は、車輪（３，３）と支持輪（３４，３４）によって機体が圃場を走行し、そして、圃場の作物体を抜取るべく機体が作物体に向かって作業走行していくと、抜取り搬送装置（２）の先端部に前下り姿勢で設けたガイド体（４６，４６）が作物体の根本側の茎部をガイド体（４６，４６）の上面板部分（４７，４７）に持ち上げ、抜取り搬送装置（２）が作物体の根本側の茎部を挟んで上方に搬送して作物体を圃場から抜取る。
また、その抜取り搬送装置（２）より上側に設けた上部搬送装置（１５）は、作物体の根本側の茎部より上側を挟んで上方に搬送する。
【０００８】
そして、上部搬送装置（１５）の第２搬送ベルト（１６，１６）の外周面に、作物体を搬送するラグ（１６ａ…，１６ａ…）を複数設けたことにより、複数のラグ（１６ａ…，１６ａ…）を作物体の茂った枝葉部分に入り込ませて引っ掛けることができる。
また、第１搬送ベルト（１７，１７）を左右に並べて配置して抜取り搬送装置（２）を構成し、該第１搬送ベルト（１７，１７）の外周面を互いに接触あるいは近接させて設けたので、作物体の根本側の茎部を適確に挟んで上方に搬送し、作物体を圃場から確実に抜取ることができる。
しかも、抜取り搬送装置（２）の上側に第２搬送ベルト（１６，１６）を左右に並べて配置して上部搬送装置（１５）を構成し、第２搬送ベルト（１６，１６）の左右の間隔を、第１搬送ベルト（１７，１７）の左右の間隔よりも広くしたので、第２搬送ベルト（１６，１６）は作物体の根本側の茎部より上側部分、即ち、最終収穫物が多く付いている部分を挟んで上方に搬送するので、最終収穫物への損傷は生じ難い。
そして、第２搬送ベルト（１６，１６）よりも上側に、後部を機体左側方に屈曲させて形成した作物体を機体側方に案内する支持部材（４５，４５）を設け、この支持部材（４５，４５）で上部搬送装置（１５）が作物体を支持する部分よりもさらに上側で作物体を左右から支持して機体側方に案内する。
これに加えて、支持部材（４５，４５）の後部を機体左側方に屈曲させ、抜取り搬送装置（２）の後部に作物体を受ける受け台（４８）を設けたことにより、抜取り搬送装置（２）の後部から排出される作物体を支持部材（４５，４５）が案内して機体側方に排出し、作物体を受け台（４８）で受けることができる。
さらに、操縦ハンドル（８）の近傍に設けた操作具（３５）を操作することによって、作業部（Ｗ）を支持する支持輪（３４，３４）の上下高さを調節する。
【０００９】
請求項２記載の発明では、左右の駆動軸（２３，２３）に抜取り搬送装置（２）を構成する第１プーリ（２０，２０）に軸着し、駆動軸（２３，２３）の上端部に斜め外側上方に延ばして設けた伝動ケース（２４，２４）を設け、この伝動ケース（２４，２４）に設ける伝動軸（２６，２６）に上段搬送装置（１５）の第２プーリ（３０，３０）を軸着したことにより、抜取り搬送装置（２）と上段搬送装置（１５）の駆動構成が簡略なものとなる。
また、伝動ケース（２４，２４）の上面に伝動軸（２６，２６）を上方に延ばして設け、この伝動軸（２６，２６）の上端部に上部搬送装置（１５）の第２プーリ（３０，３０）を軸着したことにより、抜取り搬送装置（２）と上部搬送装置（１５）の間に作物体が通過する空間を十分に確保できる。
【００１０】
【００１１】
【発明の効果】
請求項１記載の発明は、枝豆等の作物体を圃場から抜取るという収穫作業を、従来人力によっていたものを機械によって行えるようになり、当該作業の省力化が図られる。
そして、ガイド体（４６，４６）の前端部を抜取り搬送装置（２）よりも前側且つ下方に延ばして作物体の根本側の茎部の左右側方に入り込んで作物体の下部側をガイド体（４６，４６）の上面板部分（４７，４７）によって持ち上げる構成としたことにより、抜取り搬送装置（２）はガイド体（４６，４６）によって持ち上げられた作物体の根本側の茎部を挟んで上方に搬送して作物体を圃場から抜取るので、抜取り搬送装置（２）が最終収穫物を挟んで損傷を与えることを防止できる。
また、作物体の根本側の茎部は抜取り搬送装置（２）に挟まれて搬送されるが、その上側部分は、上部搬送装置（１５）によって搬送される。
よって、作物体を適正な姿勢で抜取って上方に搬送できるようになり、抜取り搬送中に作物体が左右方向にあるいは前後方向に倒れることによって最終収穫物が抜取り搬送装置（２）や他の機体部材に引っかかって損傷を受けるという事態が生じ難くなる。
【００１２】
そして、第２搬送ベルト（１６，１６）の外周面に、作物体を搬送するラグ（１６ａ…，１６ａ…）を複数設けたことにより、複数のラグ（１６ａ…，１６ａ…）が作物体の茂った枝葉部分に入り込んで引っかかるので、作物体の横幅の大小に関わらず適確に作物体を搬送できる。
さらに、第１搬送ベルト（１７，１７）の外周面を互いに接触あるいは近接させて設けたので、作物体を圃場から確実に抜取ることができ、しかも、第２搬送ベルト（１６，１６）の左右の間隔を第１搬送ベルト（１７，１７）の左右の間隔よりも広くしたので、上部搬送装置（１５）で最終収穫物が多く付いている部分を挟んで上方に搬送しても、最終収穫物への損傷は生じ難いものとなる。
また、上部搬送装置（１５）の上側に設けた支持部材（４５，４５）は、上部搬送装置（１５）が作物体を支持する部分よりもさらに上側位置で作物体を左右から支持して案内するため、作物体の背が高くても搬送中に左右に倒れることを防止できるので、円滑に作物体が搬送され、作業能率が向上する。
そして、支持部材（４５，４５）の後部を機体左側方に屈曲させ、抜取り搬送装置（２）の後部に受け台（４８）を設けたことにより、抜取り搬送装置（２）から排出される作物体を支持部材（４５，４５）で案内して機体側方に排出させて受け台（４８）で受けることができる。
さらに、操縦ハンドル（８）の近傍に設けた操作具（３５）を操作することによって、支持輪（３４，３４）の上下高さを調節することができるので、抜取り搬送装置（２）の搬送始端部の畝に対する高さを設定高さに適確に保持することができる。
【００１３】
請求項２記載の発明では、上記請求項１記載の発明が奏する効果に加え、左右の駆動軸（２３，２３）に抜取り搬送装置（２）の第１プーリ（２０，２０）と伝動ケース（２４，２４）を設け、伝動ケース（２４，２４）に設ける伝動軸（２６，２６）に上段搬送装置（１５）の第２プーリ（３０，３０）を軸着したことにより、抜取り搬送装置（２）と上段搬送装置（１５）の駆動構成を簡略にすることができる。
また、伝動ケース（２４，２４）の上面に上方に延ばして設ける伝動軸（２６，２６）に上部搬送装置（１５）の第２プーリ（３０，３０）を軸着したことにより、抜取り搬送装置（２）と上部搬送装置（１５）の間に作物体が通過する空間を十分に確保できるので、作物体の搬送が妨げられることが防止され、作業能率が向上する。
【００１４】
【００１５】
【発明の実施の態様】
本発明の一実施態様として最終収穫物が枝豆である作物体を圃場から抜取って収穫する収穫機を、以下に詳細に説明する。この収穫機１は、図に示すように、走行装置Ｄと、作業走行中に作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取る抜取り搬送装置２を設けたものとなっている。走行装置Ｄによって機体が圃場Ｇを走行し、そして、圃場Ｇの作物体Ｐを抜取るべく機体が作物体Ｐに向かって作業走行していくと、抜取り搬送装置２が、作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取る。
【００１６】
走行装置Ｄの一例として、圃場Ｇに形成された畝Ｕの両側の谷部分Ｖを走行する駆動回転する左右一対の車輪３，３を設けて、機体が自走するよう構成している。この車輪３，３は、機体後部側に配置されたエンジン４から動力が伝動されて駆動回転する。具体的には、エンジン４の動力が、エンジン４の前側に配置されエンジン４に連結するミッションケース５内の変速伝動機構に伝動し、該変速伝動機構を経て、ミッションケース５の左右両側部に固着した車輪伝動ケース６，６内の伝動機構に伝動し、該車輪伝動ケース６，６の下部の左右方向外側方に突出する車軸７，７に伝動して該車軸７，７に取り付けている前記車輪３，３が駆動回転する構成となっている。なお、走行装置Ｄは車輪式に換えてクローラ式に構成することもできる。
【００１７】
また、機体の操縦部Ｏとして歩行型の操縦ハンドル８をその左右のグリップ部９，９が機体後端に位置するように機体後部に設けている。操縦ハンドル８のグリップ部９，９から前側に延びるハンドルフレーム１０は下方に傾斜して前方に延び基部がミッションケース５に固着している。また、操縦ハンドル８のグリップ部９，９には、操縦者の握り操作により操作されるサイドクラッチレバー１１，１１を左右に設けていて、これにより左右の車輪３，３への伝動を個々に遮断することができ機体の旋回が容易に行える。更に、抜取り搬送装置２への伝動を断接するクラッチの操作を行う操作レバー１２や、エンジン４からミッションケース５への伝動を断接するクラッチの操作を行う操作レバー１３を配置した操作部１４を操縦ハンドル８のグリップ部９，９の近傍に設けている。
【００１８】
次に、作業部Ｗについて説明する。作業部Ｗには、作業走行中に作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取る抜取り搬送装置２と、該抜取り搬送装置２より上側で作物体Ｐを挟んで上方に搬送する上部搬送装置１５とを設けている。
【００１９】
従って、走行装置Ｄによって機体が圃場Ｇを走行し、そして、圃場Ｇの作物体Ｐを抜取るべく機体が作物体Ｐに向かって作業走行していくと、抜取り搬送装置２が、作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取る。また、その抜取り搬送装置２より上側に設けた上部搬送装置１５は、作物体Ｐの根本側の茎部ａより上側を挟んで上方に搬送する。よって、枝豆等の作物体Ｐを圃場Ｇから抜取るという収穫作業を、従来人力によっていたものを機械によって行えるようになり、当該作業の省力化が図れる。しかも、抜取り搬送装置２が作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取るので、最終収穫物Ｂを挟んで損傷を与えることが少ない。また、作物体Ｐの根本側の茎部ａは抜取り搬送装置２に挟まれて搬送されるが、その上側部分ｂは、上部搬送装置１５によって挟まれて搬送される。よって、作物体Ｐを適正な姿勢で抜取って上方に搬送できるようになり、抜取り搬送中に作物体Ｐが左右方向に或は前後方向に倒れることによって最終収穫物Ｂが搬送装置や他の機体部材に引っかかって損傷を受けるという事態が生じ難くなる。
【００２０】
なお、抜取り搬送装置２と上部搬送装置１５とは作物体Ｐを機体に対して斜め後上方へ搬送するが、両搬送装置２，１５の搬送速度は略同速度となるよう設定する。また、両搬送装置２，１５の斜め後上方への搬送速度のうち機体後方水平方向の速度成分の大きさは、走行装置Ｄによる機体前方水平方向への作業走行速度の大きさと略同じ大きさとなるよう設定する。このように設定すると、作業走行中、作物体Ｐは、抜取り搬送装置２と上部搬送装置１５によって、圃場Ｇに対して前後に倒れないで略垂直上方向きに搬送されるようになる。
【００２１】
また、上部搬送装置１５の搬送体１６，１６の搬送始端部Ｓ１，Ｓ１が抜取り搬送装置２の搬送体１７，１７の搬送始端部Ｓ２，Ｓ２と同位置或はそれより作業走行方向ｄに対し後側に位置するよう設けている。ここで、上部搬送装置１５の搬送体１６，１６の搬送始端部Ｓ１，Ｓ１は、上部搬送装置１５が作物体Ｐを機体前方側から後方側に搬送するときの搬送体１６，１６の搬送作用状態が始まる箇所であり、抜取り搬送装置２の搬送体１７，１７の搬送始端部Ｓ２，Ｓ２は、抜取り搬送装置２が作物体Ｐを機体前方側から後方側に搬送するときの搬送体１７，１７の搬送作用状態が始まる箇所である。従って、作物体Ｐは、抜取り搬送装置２によってその根本側の茎部ａが挟まれてから上部搬送装置１５の搬送作用を受けることになる。よって、抜取り搬送装置２によって作物体Ｐが抜取り作用を受ける前に上部搬送装置１５によって上方に引き上げられて最終収穫物Ｂがそぎ落とされるという事態の発生を回避できる。
【００２２】
更に、抜取り搬送装置２の搬送体１７，１７を左右に並べて配置した搬送ベルトで構成して、該搬送ベルト（第１搬送ベルト）１７，１７の左右内側のベルト外周面を互いに接触或は近接させて設け、上部搬送装置１５の搬送体１６，１６を抜取り搬送装置２の上側で左右に並べて配置した搬送ベルトで構成して、該搬送ベルト（第２搬送ベルト）１６，１６の左右内側のベルト外周面を抜取り搬送装置２の搬送ベルト１７，１７の左右内側の間隔よりも広い間隔で、具体的には、作物体Ｐの茎部ａの横幅よりは広く作物体全体の横幅よりは若干狭い間隔で、互いに離間させて設けている。
【００２３】
従って、抜取り搬送装置２の左右搬送ベルト（第１搬送ベルト）１７，１７は、作物体Ｐの根本側の茎部ａを適確に挟んで上方に搬送し作物体Ｐを圃場Ｇから確実に抜取る。しかも、上部搬送装置１５の搬送体１６，１６は、作物体Ｐの根本側の茎部ａより上側部分ｂ、即ち、最終収穫物Ｂが多く付いている部分を挟んで上方に搬送するが最終収穫物Ｂへの損傷は生じ難いものとなる。
【００２４】
また、上部搬送装置１５の左右搬送ベルト（第２搬送ベルト）１６，１６のベルト外周面に複数のラグ１６ａ・・・；１６ａ・・・を設けている。従って、その複数のラグ１６ａ・・・；１６ａ・・・が作物体Ｐの茂った枝葉部分に入り込んで引っかかり、作物体Ｐの横幅の大小に関わらず適確に作物体Ｐを搬送できる。
【００２５】
以下、作業部Ｗの具体的な構成を説明する。作業部Ｗは、機体前部に配置していて、ミッションケース５の前部から斜め前側上方に延びる左右２本の伝動フレーム１８，１８と、ミッションケース４の前部から斜め前側下方に延びる左右２本の支持フレーム１９，１９との各先端部に取り付けている。
【００２６】
抜取り搬送装置２は、上側のプーリ（第１プーリ）２０，２０と下側のプーリ２１，２１、そしてテンションプーリ２２，２２；２２，２２に搬送ベルト１７，１７を巻き掛け、上側のプーリ２０，２０の駆動回転により左右の搬送ベルト１７，１７が駆動回転する構成としている。左右の搬送ベルト１７，１７は、その左右内側のベルト外周面が前側から後側へ移動する方向に回転する。この左右の搬送ベルト１７，１７を駆動回転する伝動構成を説明すると、まず、ミッションケース５内の動力が、前記左右伝動フレーム１８，１８内の駆動軸２３，２３に伝動し、該駆動軸２３，２３の先端側部分に一体回転するよう取り付けた抜取り搬送装置２の上側のプーリ２０，２０が回転する。該プーリ２０，２０から上方に突出した駆動軸２３，２３の先端部が、抜取り搬送装置２の上面（上下のプーリ２０，２０；２１，２１と搬送ベルト１７，１７の上面側を覆う平板部材の上面）に固定した第一伝動ケース２４，２４内に入り込んで、その先端部にスプロケット２５，２５を一体回転するよう取り付けている。左右の第一伝動ケース２４，２４は、駆動軸２３，２３から左右斜め外側上方に延びるよう設けていて、その上端側部分の上面に、伝動軸２６，２６を内装し上方に延びる第二伝動ケース２７，２７を固定している。該第二伝動ケース２７，２７内の伝動軸２６，２６の下端部は第一伝動ケース２４，２４内に入り込んで、その下端部にスプロケット２８，２８を一体回転するよう取り付け、該スプロケット２８，２８と前記駆動軸２３，２３先端部のスプロケット２５，２５とに伝動チェン２９，２９をかける。伝動軸２６，２６の上端部には、上部搬送装置１５の上側のプーリ（第２プーリ）３０，３０を一体回転するように取り付ける。上部搬送装置１５は、上側のプーリ３０，３０と下側のプーリ３１，３１に搬送ベルト１６，１６を巻き掛け、上側のプーリ３０，３０の駆動回転により左右の搬送ベルト１６，１６が駆動回転する構成としている。従って、ミッションケース５内の動力が駆動軸２３，２３を介して抜取り搬送装置２に伝動し、これにより上側のプーリ２０，２０が駆動回転されて搬送ベルト１７，１７が駆動回転される。また、駆動軸２３，２３を伝動する動力は、第一伝動ケース２４，２４及び第二伝動ケース２７，２７内の前記伝動手段（スプロケット２５，２５；２８，２８、伝動チェン２９，２９、伝動軸２６，２６）を介して上部搬送装置１５に伝動し、これによりその上側のプーリ３０，３０が駆動回転されて搬送ベルト１６，１６が駆動回転される。上部搬送装置１５の下側のプーリ３１，３１は、抜取り搬送装置２の下部上面に固定された支持部材３２，３２に支持されている。
【００２７】
なお、前記のように、上部搬送装置１５の搬送体１６，１６の左右内側のベルト外周面を抜取り搬送装置２の搬送ベルト１７，１７の左右内側の間隔よりも広い間隔で互いに離間させて設けているので、上部搬送装置１５の上側のプーリ３０，３０の駆動軸となる伝動軸２６，２６は、抜取り搬送装置２の上側のプーリ２０，２０を駆動回転する駆動軸２３，２３より左右外側に配置されることになる。そして、抜取り搬送装置２の上側のプーリ２０，２０を駆動回転する駆動軸２３，２３から左右外側方向に伝動する第一伝動部と上方向に伝動する第二伝動部とを介して上部搬送装置１５の上側のプーリ３０，３０に伝動する構成とすれば、上部搬送装置１５の駆動構成は簡略なものとなる。さらに、左右外側方向に伝動する第一伝動部（上例では第一伝動ケース２４，２４）を抜取り搬送装置２の上面側に設け、その第一伝動部の上面側に第二伝動部（上例では第二伝動ケース２７，２７）を連設する構成とすることで、図５に示すように、搬送される作物体Ｐが通過する空間を充分に確保でき、第一伝動部（第一伝動ケース２４，２４）及び第二伝動部（第二伝動ケース２７，２７）が作物体Ｐの通過時に妨げにならず、作物体Ｐが良好に搬送されるようになって、作業が良好に行える。
【００２８】
また、上記の如く構成した上部搬送装置１５の搬送体１６，１６の搬送始端部Ｓ１，Ｓ１、即ち、上部搬送装置１５が作物体Ｐを機体前方側から後方側に搬送するときの搬送体１６，１６の搬送作用状態が始まる箇所は、上部搬送装置１５の下側の左右プーリ３１，３１の各支軸３２，３２の軸心を左右に互いに結ぶ線と、左右中央側の搬送ベルト１６，１６の外周面とが交差する部分となる。ここから左右中央側の搬送ベルト１６，１６は略同間隔で斜め上方後方へ移動し、作物体Ｐを挟んで搬送する。また、抜取り搬送装置２の搬送体１７，１７の搬送始端部Ｓ２，Ｓ２、即ち、抜取り搬送装置２が作物体Ｐを機体前方側から後方側に搬送するときの搬送体１７，１７の搬送作用状態が始まる箇所は、抜取り搬送装置２の下側の左右プーリ２１，２１の各支軸３３，３３の軸心を左右に互いに結ぶ線と、左右中央側の搬送ベルト１７，１７の外周面とが交差する部分となる。ここから左右中央側の搬送ベルト１７，１７が互いに接触或は近接して斜め上方後方へ移動し、作物体Ｐの根本側の茎部ａを挟んで搬送する。
【００２９】
抜取り搬送装置２の左右の搬送ベルト１７，１７の下端部は、畝Ｕの上面の上方近傍に位置するように配置し、機体が走行装置Ｄによって畝Ｕを跨いだ状態で前進すると、抜取り搬送装置２の左右の搬送ベルト１７，１７の両下端部（搬送始端部Ｓ２，Ｓ２）間に、圃場Ｇの畝Ｕ上に生育する作物体Ｐの地上部分の根本側の茎部ａが入り込んで挟まれ保持されるようになる。この状態で、機体が走行装置Ｄによって前進しながら左右の搬送ベルト１７，１７の作物体Ｐを挟んでいる部分が斜め上方後方に移動するように駆動回転され、これにより畝Ｕ上に生育する作物体Ｐが圃場Ｇから抜取られて上方に搬送されていくことになる。
【００３０】
作業部Ｗの前部下側左右には、作業部Ｗを圃場Ｇに支持させる支持体（ここでは転動自在な支持輪）３４，３４を設けている。この支持体３４，３４を設けたことにより、抜取り搬送装置２が畝Ｕ上に生育する作物体Ｐを挟んで上方に搬送することによって作物体Ｐを畝Ｕから抜取るときに作業部Ｗが下降しようとするのを、この支持体３４，３４で突っ張るようにして作業部Ｗを支持することができる。これにより、抜取り搬送装置２の搬送始端部Ｓ２，Ｓ２の畝Ｕに対する高さを設定高さに保持でき、抜取り搬送装置２の搬送ベルト１７，１７の搬送始端部Ｓ２，Ｓ２間に挟まれる作物体Ｐの個所を設定個所に保持できて、作物体Ｐを挟み込んで上方に搬送し抜取っていく作業が良好に行える。また、上記支持体３４，３４は、機体前後方向で搬送ベルト１７，１７の搬送始端部Ｓ２，Ｓ２と同位置或はその近傍個所で圃場面に接地するので、搬送装置２の搬送始端部Ｓ２，Ｓ２の畝Ｕに対する高さを設定高さに保持するのが適確に行える。更に、この支持体３４，３４は、操縦部Ｏの操縦ハンドル８の近傍に設けた操作具３５で高さ調節可能に構成している。具体的には、支持フレーム１９，１９に回動自在に支持した横軸３６の左右両端部にアーム３７，３７を固着し、このアーム３７，３７の先端部に支持輪３４，３４を回転自在に取り付けている。そして、前記横軸３６の左右中間部に下方に延びるアーム３８を固着し、このアーム３８の下端部にロッド３９を連結している。ロッド３９は操縦ハンドル８に向かって延び、その後端部をハンドルフレーム１０に固着した支持部材４０にて摺動自在に支持している。ロッド３９の後端部の外周面はネジ切りしており、これに支持部材４０に対して軸心方向には移動不能で軸心周りには回転自在とした調節ロッド４１の軸心側中空部内面に形成したねじ切り部が嵌合している。調節ロッド４１の後端部に回転ハンドルの態様に形成した操作具３５を取り付けている。この操作具３５を回転操作して調節ロッド４１をそのロッド軸心周り回転すると、前記ロッド３９の後端部が調節ロッド４１のねじ嵌合部に出入りし、よって、前記アーム３８が前後に回動して横軸３６、前記アーム３７，３７が回動し、支持輪３４，３４が上下高さ調節される。
【００３１】
なお、走行装置Ｄの左右車輪３，３は、互いに異なる高さに調節可能に構成しており、傾斜地で機体の左右方向の姿勢を適宜修正することができるようになっている。図示例では、操作レバー４２にて手動で行えるように構成しているが、油圧シリンダ等の駆動装置を用いて調節するように構成してもよい。
【００３２】
また、図示例では、上部搬送装置１５の上側に作物体Ｐの左右を支持する支持体４３を設けている。この支持体４３は、具体的には、上部搬送装置１５の左右の搬送ベルト１６，１６の上側面を覆う平板状のカバー体の上面に固着されて起立する支持部材４４，４４に、上部搬送装置１５の左右の搬送ベルト１６，１６の左右中央側部分の上方位置で上部搬送装置１５の搬送方向に延びる棒状の支持体フレーム（支持部材）４５，４５を取付けて設けている。この支持体４３の支持体フレーム４５，４５は、作物体Ｐにあって上部搬送装置１５に挟まれている部分より更に上側部分を左右から支持する。よって、作物体Ｐが背の高い状態であっても作物体Ｐの上部が搬送中に左右に倒れることがなく良好に作物体Ｐが搬送され、能率良く作業が行える。また、左右の支持体フレーム４５，４５は、その前部がそれぞれ左右外側方に屈曲した形状に形成していて、円滑に作物体Ｐが支持体フレーム４５，４５間に入っていくようになっている。また、後部は、機体側方、この実施例では、左側方に屈曲した形状に形成していて、抜取り搬送装置２から排出される作物体Ｐが機体側方に排出されやすいようになっている。
【００３３】
また、抜取り搬送装置２の先端部の上側を覆うように前下り姿勢の左右ガイド体４６，４６を設けている。この左右ガイド体４６，４６の前端部は、抜取り搬送装置２の先端部より前側且つ下方に延びていて、作業走行時には、作物体Ｐの根本側の茎部ａの左右側方に入り込んで、その茎部ａの左右側の作物体Ｐの下部側を左右ガイド体４６，４６の上面板部分４７，４７にて持上げていくようになっている。これにより、抜取り搬送装置２が作物体Ｐの根本側の茎部ａを挟むときに圃場面近くの最終収穫物Ｂを一緒に挟まないようになり、抜取り搬送装置２による最終収穫物Ｂの損傷が生じにくくなる。
【００３４】
抜取り搬送装置２から排出される作物体Ｐは、機体側方に屈曲する支持体フレーム４５，４５の後部に案内されて機体側方の圃場Ｇに落ちていくか、抜取り搬送装置２の後部に設けた受け台４８上に受けられていく。受け台４８上に作物体Ｐがたまった場合は、作業者が手で圃場Ｇ上に落としていく。
【００３５】
以下、収穫機１の作用を説明する。この収穫機１は、走行装置Ｄによって機体が圃場Ｇを走行し、そして、圃場Ｇの作物体Ｐを抜取るべく機体が作物体Ｐに向かって作業走行していくと、抜取り搬送装置２が、作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取る。また、その抜取り搬送装置２より上側に設けた上部搬送装置１５は、作物体Ｐの根本側の茎部ａより上側を挟んで上方に搬送する。
【００３６】
更に、上部搬送装置１５の搬送体１６，１６の搬送始端部Ｓ１が抜取り搬送装置２の搬送体１７，１７の搬送始端部Ｓ２と同位置或はそれより作業走行方向に対し後側に位置するので、作物体Ｐは、抜取り搬送装置２によってその根本側の茎部ａが挟まれてから上部搬送装置１５の搬送作用を受けることになる。
【００３７】
また、前記抜取り搬送装置２の搬送体を左右に並べて配置した搬送ベルト１７，１７で構成して、該搬送ベルト１７，１７の左右内側のベルト外周面を互いに接触或は近接させて設けたので、抜取り搬送装置２の左右搬送ベルト１７，１７は、作物体Ｐの根本側の茎部ａを適確に挟んで上方に搬送し作物体Ｐを圃場Ｇから確実に抜取る。しかも、前記上部搬送装置１５の搬送体を前記抜取り搬送装置２の上側で左右に並べて配置した搬送ベルト１６，１６で構成して、該搬送ベルト１６，１６の左右内側のベルト外周面を抜取り搬送装置２の搬送ベルト１７，１７の左右内側の間隔よりも広い間隔で互いに離間させて設けたので、上部搬送装置１５の左右搬送ベルト１６，１６は、作物体Ｐの根本側の茎部ａより上側部分、即ち、最終収穫物Ｂが多く付いている部分を挟んで上方に搬送するが最終収穫物Ｂへの損傷は生じ難い。
【００３８】
そして、上部搬送装置１５の左右搬送ベルト１６，１６に、該ベルト回転域の外方に突出するラグ１６ａ・・・，１６ａ・・・を複数設けたものなので、その複数のラグ１６ａ・・・，１６ａ・・・が作物体Ｐの茂った枝葉部分に入り込んで引っかかり、作物体Ｐの横幅の大小に関わらず適確に作物体Ｐを搬送できる。
【００３９】
よって、この収穫機１は、枝豆等の作物体Ｐを圃場Ｇから抜取るという収穫作業を、従来人力によっていたものを機械によって行えるようになり、当該作業の省力化が図れる。しかも、抜取り搬送装置２が作物体Ｐの根本側の茎部ａを挟んで上方に搬送して作物体Ｐを圃場Ｇから抜取るので、最終収穫物Ｂを挟んで損傷を与えることが少ない。また、作物体Ｐの根本側の茎部ａは抜取り搬送装置２に挟まれて搬送されるが、その上側部分は、上部搬送装置１５によって挟まれて搬送される。よって、作物体Ｐを適正な姿勢で抜取って上方に搬送できるようになり、抜取り搬送中に作物体Ｐが左右方向に或は前後方向に倒れることによって最終収穫物Ｂが抜取り搬送装置２や他の機体部材に引っかかって損傷を受けるという事態が生じ難くなる。
【００４０】
そして、上部搬送装置１５の搬送体１６，１６の搬送始端部Ｓ１が抜取り搬送装置２の搬送体１７，１７の搬送始端部Ｓ２と同位置或はそれより作業走行方向に対し後側に位置するので、抜取り搬送装置２によって作物体Ｐが抜取り作用を受ける前に上部搬送装置１５によって上方に引き上げられて最終収穫物Ｂがそぎ落とされるという事態の発生を回避できる。
【００４１】
また、抜取り搬送装置２の左右搬送ベルト１７，１７の左右内側のベルト外周面を互いに接触或は近接させて設けたので、作物体Ｐを圃場Ｇから確実に抜取ることができ、しかも、上部搬送装置１５の左右搬送ベルト１６，１６の左右内側のベルト外周面を広い間隔で互いに離間させて設けたので、最終収穫物Ｂが多く付いている部分を挟んで上方に搬送しつつも最終収穫物Ｂへの損傷は生じ難いものとなる。
【００４２】
更に、上部搬送装置１５の左右搬送ベルト１６，１６に、該ベルト回転域の外方に突出するラグ１６ａ・・・，１６ａ・・・を複数設けたものなので、作物体Ｐの横幅の大小に関わらず適確に作物体Ｐを搬送できる。
【図面の簡単な説明】
【図１】収穫機の側面図。
【図２】収穫機の平面図。
【図３】収穫機の一作用状態を示す背面視部分断面図。
【図４】収穫機の一作用状態を示す背面視部分断面図。
【図５】収穫機の一作用状態を示す背面視部分断面図。
【符号の説明】
１：収穫機
２：抜取り搬送装置
４：エンジン
５：ミッションケース
８：操縦ハンドル
９，９：グリップ部
１５：上部搬送装置
１６，１６：上部搬送装置の搬送体
１６ａ…；１６ａ…：上部搬送装置の搬送体ラグ
１７，１７：抜取り搬送装置の搬送体
２０，２０：プーリ（第１プーリ）
２３，２３：駆動軸
２４，２４：第一動ケース（伝動ケース）
２６，２６：伝動軸
３０，３０：プーリ（第２プーリ）
３４，３４：支持輪
３５：操作具
４５，４５：支持体フレーム（支持部材）
４６，４６：ガイド体
４７，４７：上面板部分
４８：受け台
Ｓ１，Ｓ１：上部搬送装置の搬送体の搬送始端部
Ｓ２，Ｓ２：抜取り搬送装置の搬送体の搬送始端部
ｄ：作業走行方向
Ｐ：作物体
ａ：作物体の根本側の茎部
Ｂ：最終収穫物
Ｗ：作業部[0001]
BACKGROUND OF THE INVENTION
  The present invention belongs to the technical field of a harvesting machine that extracts a crop body such as green soybeans having a final harvest on the ground part from a field.
[0002]
[Prior art]
  Conventionally, the harvesting work of green soybeans, etc. has been performed by an operator directly extracting a crop body growing on a farm field.
[0003]
[Problems to be solved by the invention]
  As described above, the conventional harvesting work for green soybeans and the like was a labor-intensive work because it was performed manually. Accordingly, an object of the present invention is to save labor in this work.
  In addition, since crops such as green soybeans have green beans that are the final harvest on the ground part of the crops, the final crops such as green soybeans may be dropped or damaged when the crop is removed from the field. There must be no.
  If the root part of the crop body is pinched and removed, the crop body can be harvested without damaging the final harvest, but if the crop body to be harvested is tall, it will fall to the left and right during transportation. There is a problem that the transportation of the crop body is delayed and the work efficiency is lowered.
  Providing an auxiliary transport device that supports and transports the crop body from the left and right at a position above the position where the crop body is sandwiched by the transport device can prevent the crop body from falling to the left or right during transport. There is a problem that a driving mechanism for supplying a driving force to the apparatus becomes complicated.
  Furthermore, if there is no space in the space through which the crop body passes between the transport device for picking up the crop body and the auxiliary transport device, the auxiliary transport device hinders the movement of the branches and leaves of the crop body and the final harvest, and the work efficiency is increased. There is a problem that decreases.
[0004]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention is configured as follows.
  According to the first aspect of the present invention, there is provided a sampling / conveying device (2) for transporting the crop body from the field by sandwiching the stem portion on the root side of the crop body, and an upper side of the sampling / conveying device (2). A working part (W) is composed of an upper conveying device (15) that conveys the crop body upward, and support wheels (34, 34) that support the working part (W) below the front part of the working part (W). ), A pair of left and right wheels (3, 3) is provided at the rear of the aircraft, and the steering handle (8) is positioned so that the left and right grips (9, 9) of the steering handle (8) are located at the rear end of the aircraft. ) At the rear of the aircraft,An operating tool (35) for adjusting the vertical height of the support wheels (34, 34) is provided near the steering handle (8),Above the upper transport device (15)The upper conveying device (15) supports the crop body from the left and right above the portion that supports the crop body.Support members (45, 45) for guiding to the side of the machine body are provided, the rear part of the support members (45, 45) is bent to the left side of the machine body, and the support members (45, 45) are arranged at the rear part of the sampling and conveying device (2). ) To provide a cradle (48) for receiving crops guided to the side of the machine,AboveThe tip of the sampling and conveying device (2)The left and right guide bodies (46, 46) in a forward descending position are provided on the stalk, and the front end portion of the guide bodies (46, 46) is extracted and extended forward and downward from the conveying device (2), and the stem part on the root side of the crop body. The lower side of the crop body is lifted by the upper plate portion (47, 47) of the guide body (46, 46),The sampling and conveying device (2)LeftThe upper conveying device (15) is configured such that the outer peripheral surfaces of the first conveying belts (17, 17) arranged on the right are in contact with or close to each other.OutsideA second conveying belt (16, 16) provided with a plurality of lugs (16a ..., 16a ...) for conveying crops on the peripheral surface is arranged side by side, and left and right of the second conveying belt (16, 16) intervalThe secondThe harvesting machine is characterized in that it is wider than the distance between the left and right of one conveyor belt (17, 17).
[0005]
  The invention according to claim 2An engine (4) is provided at the rear of the machine body, a transmission case (5) is connected to the engine (4), and left and right drive shafts (23, 23) for transmitting the power of the transmission case (5) are provided. The drive pulley (20, 20) is pivotally attached to the upper end side of the drive shaft (23, 23) and protrudes upward from the first pulley (20, 20). A transmission case (24, 24) is provided on each of the shafts (23, 23) so as to extend obliquely outward and upward, and a transmission shaft (26, 26) is provided on the upper surface of the transmission case (24, 24). The second pulley (30, 30) of the upper transfer device (15) is attached to the upper end of the transmission shaft (26, 26).The harvesting machine according to claim 1, wherein
[0006]
[0007]
[Action]
  According to the first aspect of the present invention, the vehicle travels on the field by the wheels (3, 3) and the support wheels (34, 34), and the vehicle travels toward the crop body to extract the crop body from the field. As you go,Provided in a forward and downward posture at the tip of the sampling and conveying device (2)The guide body (46, 46) is the root part of the crop body.On the top plate portion (47, 47) of the guide body (46, 46)Lifting and removal conveying device (2)MadeThe crop body is removed from the field by transporting it upward with the stem on the root side of the object.
  Moreover, the upper conveyance apparatus (15) provided above the extraction conveyance apparatus (2) conveys upwards on both sides of the upper side from the stem part of the root side of a crop body.
[0008]
  AndUpThe plurality of lugs (16a ..., 16a ...) are provided on the outer peripheral surface of the second conveyor belt (16, 16) of the part conveying device (15) by providing a plurality of lugs (16a ..., 16a ...) for conveying the crops. ) Can be caught in the branches and leaves of the crop.
  Also,Since the first transport belt (17, 17) is arranged side by side to constitute the sampling transport device (2), and the outer peripheral surfaces of the first transport belt (17, 17) are provided in contact with or close to each other, The stalk portion on the root side of the crop body is properly sandwiched and conveyed upward, and the crop body can be reliably removed from the field.
  In addition, the upper conveying device (15) is configured by arranging the second conveying belts (16, 16) side by side on the upper side of the sampling conveying device (2), and the left and right intervals between the second conveying belts (16, 16). Is wider than the distance between the left and right of the first conveyor belts (17, 17), so that the second conveyor belt (16, 16) has a larger upper portion than the stem portion on the root side of the crop body, that is, the final harvest. Since it is conveyed upward across the attached part, damage to the final harvest is unlikely to occur.
  A support member (45, 45) for guiding a crop body formed by bending the rear part to the left side of the machine body is provided on the upper side of the second conveyor belt (16, 16). 45, 45), the upper conveying device (15) supports the crop body from the left and right above the portion supporting the crop body and guides it to the side of the machine body.
  In addition to this, the rear part of the support member (45, 45) is bent to the left side of the machine body, and the cradle (48) for receiving the crop body is provided at the rear part of the sampling / conveying apparatus (2). 2) The crop body discharged from the rear part is guided by the support members (45, 45) and discharged to the side of the machine body, and can be received by the cradle (48).
  Furthermore, by operating the operating tool (35) provided in the vicinity of the steering handle (8), the vertical heights of the support wheels (34, 34) that support the working unit (W) are adjusted.
[0009]
  In invention of Claim 2,The left and right drive shafts (23, 23) are attached to the first pulleys (20, 20) constituting the sampling and conveying device (2), and are provided at the upper ends of the drive shafts (23, 23) so as to extend obliquely outward and upward. The transmission case (24, 24) is provided, and the second pulley (30, 30) of the upper transport device (15) is attached to the transmission shaft (26, 26) provided in the transmission case (24, 24). The drive configuration of the sampling / conveying device (2) and the upper conveying device (15) is simplified.
  A transmission shaft (26, 26) is provided on the upper surface of the transmission case (24, 24) so as to extend upward, and a second pulley (30) of the upper conveying device (15) is provided at the upper end of the transmission shaft (26, 26). , 30) can secure a sufficient space for the crop body to pass between the sampling conveyance device (2) and the upper conveyance device (15).
[0010]
[0011]
【The invention's effect】
  According to the first aspect of the present invention, it is possible to perform a harvesting operation of extracting a crop body such as green soybeans from a field by using a machine that has been conventionally performed by human power, thereby saving labor of the operation.
  And,The front end portion of the guide body (46, 46) is extracted and extended forward and downward from the conveying device (2) so as to enter the left and right sides of the stem portion on the root side of the crop body, and the lower side of the crop body is guided to the guide body (46 , 46) is configured to be lifted by the upper surface plate portion (47, 47),Sampling and conveying device (2)IsSince the crop body is removed from the field by transporting it upwards across the stem portion of the crop body lifted by the guide body (46, 46),The sampling conveyor (2)Damaging the final cropCan prevent.
  Further, the stem portion on the root side of the crop body is sandwiched and transported by the sampling and transporting device (2), but the upper part thereof is transported by the upper transporting device (15).
  Therefore, the crop body can be extracted in an appropriate posture and transported upward, and the final harvest can be extracted and transported by the cropping device (2) or other devices when the crop body falls in the left-right direction or the front-rear direction during the sampling transport. It is difficult for a situation where the aircraft member is caught and damaged.
[0012]
  And by providing the lug (16a ..., 16a ...) which conveys a crop body in the outer peripheral surface of the 2nd conveyance belt (16, 16), several lugs (16a ..., 16a ...) are the crop body. Since it enters and gets caught in the thick branches and leaves, the crop body can be conveyed accurately regardless of the width of the crop body.
  TheIn addition, since the outer peripheral surfaces of the first conveyor belts (17, 17) are provided in contact with or close to each other, the crop body can be reliably removed from the field, and the second conveyor belts (16, 16). Since the left and right intervals of the first conveying belt (17, 17) are wider than the left and right intervals of the first conveying belt (17, 17), Damage to the final crop is less likely to occur.
  Further, the support members (45, 45) provided on the upper side of the upper conveying device (15) support and guide the crop body from the left and right at a position further above the portion where the upper conveying device (15) supports the crop body. Therefore, even if the crop body is tall, it can be prevented from falling to the left or right during transportation, so that the crop body is transported smoothly and the work efficiency is improved.
  Then, the rear part of the support member (45, 45) is bent to the left side of the machine body, and the cradle (48) is provided at the rear part of the sampling / conveying device (2), whereby the crop discharged from the sampling / conveying device (2). The body can be guided by the support members (45, 45), discharged to the side of the machine body, and received by the cradle (48)..
  Furthermore, since the vertical height of the support wheels (34, 34) can be adjusted by operating the operating tool (35) provided in the vicinity of the steering handle (8), the conveyance of the sampling and conveying device (2). The height of the starting end with respect to the ridge can be accurately maintained at the set height.
[0013]
  In the invention according to claim 2, in addition to the effect produced by the invention according to claim 1,The left and right drive shafts (23, 23) are provided with the first pulleys (20, 20) and the transmission case (24, 24) of the sampling and conveying device (2), and the transmission shafts (26, 26) provided in the transmission case (24, 24) are provided. Since the second pulleys (30, 30) of the upper transport device (15) are pivotally attached to 26), the drive configuration of the sampling transport device (2) and the upper transport device (15) can be simplified.
  In addition, the second pulley (30, 30) of the upper conveying device (15) is attached to the transmission shaft (26, 26) provided to extend upward on the upper surface of the transmission case (24, 24). A sufficient space for the crop body to pass between (2) and the upper transport device (15) can be secured, so that the transportation of the crop body is prevented and the work efficiency is improved.
[0014]
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
  A harvesting machine that extracts and harvests a crop body whose final harvest is green soybeans as an embodiment of the present invention will be described in detail below. As shown in the figure, the harvester 1 is transported upward with the traveling device D and the stem a on the root side of the crop body P during the work travel, and the crop body P is extracted from the field G and removed. The apparatus 2 is provided. When the vehicle travels on the field G by the traveling device D, and the vehicle travels toward the crop body P in order to extract the crop body P from the field G, the sampling and conveying device 2 moves the root of the crop body P. The crop body P is extracted from the field G by being conveyed upward with the stem portion a on the side interposed therebetween.
[0016]
  As an example of the traveling device D, a pair of left and right wheels 3 and 3 that are driven and rotated to travel on the valley portions V on both sides of the basket U formed in the farm field G are provided so that the aircraft is self-propelled. The wheels 3 and 3 are driven and rotated by power transmitted from the engine 4 disposed on the rear side of the machine body. Specifically, the power of the engine 4 is transmitted to the transmission transmission mechanism in the transmission case 5 disposed on the front side of the engine 4 and connected to the engine 4, and passes through the transmission transmission mechanism to the left and right sides of the transmission case 5. It is transmitted to the transmission mechanism in the fixed wheel transmission cases 6, 6, transmitted to the axles 7, 7 projecting outward in the left-right direction at the lower part of the wheel transmission cases 6, 6 and attached to the axles 7, 7. The wheels 3 are driven and rotated. The traveling device D can also be configured as a crawler type instead of a wheel type.
[0017]
  In addition, a walking-type control handle 8 is provided at the rear part of the aircraft so that the left and right grips 9, 9 are positioned at the rear end of the aircraft as the control unit O of the aircraft. A handle frame 10 extending forward from the grip portions 9, 9 of the steering handle 8 is inclined downward and extends forward, and a base portion is fixed to the mission case 5. In addition, side clutch levers 11 and 11 that are operated by the operator's gripping operation are provided on the left and right sides of the grip portions 9 and 9 of the steering handle 8, thereby individually transmitting power to the left and right wheels 3 and 3, respectively. It can be shut off and the aircraft can be turned easily. Further, an operation lever 12 for operating a clutch for connecting / disconnecting transmission to the sampling / conveying device 2 and an operation lever 14 for operating a clutch for connecting / disconnecting transmission from the engine 4 to the transmission case 5 are operated. The handle 8 is provided in the vicinity of the grip portions 9 and 9.
[0018]
  Next, the working unit W will be described. The working unit W includes an extraction conveyance device 2 that conveys the crop body P upward from the field G by sandwiching the stem a on the root side of the crop body P during operation, and an upper side of the extraction conveyance device 2. And an upper transport device 15 for transporting the crop body P upward.
[0019]
  Therefore, when the vehicle travels on the field G by the traveling device D, and the vehicle travels toward the crop body P in order to extract the crop body P from the field G, the sampling and conveying device 2 moves the crop body P. The crop body P is removed from the field G by being transported upward with the stem portion a on the root side of the plant. Moreover, the upper conveying device 15 provided on the upper side from the sampling conveying device 2 conveys the upper side from the stem portion a on the root side of the crop body P, and conveys it upward. Therefore, the harvesting operation of extracting the crop body P such as green soybeans from the field G can be performed by a machine that has been conventionally performed by human power, and labor saving of the operation can be achieved. In addition, since the sampling and conveying apparatus 2 conveys the crop body P upward from the stalk portion a on the root side of the crop body P and extracts the crop body P from the field G, there is little damage to the final crop B. In addition, the stem portion a on the root side of the crop body P is sandwiched and transported by the sampling and transporting device 2, but the upper part b is sandwiched and transported by the upper transporting device 15. Accordingly, the crop body P can be extracted in an appropriate posture and transported upward, and the final crop B can be transported by a transport device or other device by the crop body P falling in the left-right direction or the front-rear direction during the sampling transport. It is difficult for a situation where the aircraft member is caught and damaged.
[0020]
  The sampling and conveying apparatus 2 and the upper conveying apparatus 15 convey the crop body P obliquely rearward and upward with respect to the machine body, but the conveying speeds of both the conveying apparatuses 2 and 15 are set to be substantially the same speed. Further, the speed component in the horizontal direction in the rear of the machine among the transport speeds obliquely rearward and upward of both transport apparatuses 2 and 15 is substantially the same as the magnitude of the work travel speed in the horizontal direction in front of the machine by the travel apparatus D. Set to be. With this setting, the crop body P is transported substantially vertically upward without falling back and forth with respect to the field G by the sampling transport device 2 and the upper transport device 15 during the work travel.
[0021]
  Further, the transport start end portions S1 and S1 of the transport bodies 16 and 16 of the upper transport device 15 are at the same position as the transport start end portions S2 and S2 of the transport bodies 17 and 17 of the sampling transport device 2 or from there to the working travel direction d. It is provided so as to be located on the rear side. Here, the transport start ends S1 and S1 of the transport bodies 16 and 16 of the upper transport device 15 are transport functions of the transport bodies 16 and 16 when the upper transport device 15 transports the crop body P from the front side to the rear side of the machine body. This is where the state begins, and the transport start ends S2, S2 of the transport bodies 17, 17 of the sampling transport apparatus 2 are transport bodies 17, when the sampling transport apparatus 2 transports the crop body P from the machine body front side to the rear side. This is where the 17 transfer action state begins. Therefore, the crop body P is subjected to the transporting action of the upper transporting device 15 after the root-side stem portion a is sandwiched by the sampling transporting device 2. Therefore, it is possible to avoid a situation in which the final harvested product B is scraped off by being pulled upward by the upper transport device 15 before the crop body P is subjected to the sampling operation by the sampling transport device 2.
[0022]
  Further, the conveying bodies 17 and 17 of the sampling and conveying apparatus 2 are constituted by conveying belts arranged side by side on the left and right, and the belt outer peripheral surfaces on the left and right inner sides of the conveying belts (first conveying belts) 17 and 17 are in contact with or close to each other. The conveyance bodies 16 and 16 of the upper conveyance device 15 are extracted and configured by conveyance belts arranged side by side on the upper side of the conveyance device 2, and the conveyance belts (second conveyance belts) 16 and 16 The outer circumferential surface of the belt is extracted, and is wider than the distance between the left and right inner sides of the conveyor belts 17 and 17 of the conveyor device 2, specifically, wider than the lateral width of the stalk a of the crop body P and slightly larger than the lateral width of the entire crop body. They are spaced apart from each other at narrow intervals.
[0023]
  Accordingly, the left and right conveyor belts (first conveyor belts) 17 and 17 of the sampling and conveying apparatus 2 convey the upper part of the crop body P with the stem a on the root side properly, and reliably transport the crop body P from the field G. Pull out. Moreover, the transporting bodies 16 and 16 of the upper transporting device 15 transport the upper part b above the stem part a on the root side of the crop body P, that is, the part with a lot of the final crop B, but the upper part is transported upward. Damage to the crop B is unlikely to occur.
[0024]
  Further, a plurality of lugs 16a... 16a... Are provided on the belt outer peripheral surfaces of the left and right transport belts (second transport belts) 16 and 16 of the upper transport device 15. Accordingly, the plurality of lugs 16a... 16a... Are caught and caught in the thickened branches and leaves of the crop body P, and the crop body P can be conveyed accurately regardless of the width of the crop body P.
[0025]
  Hereinafter, a specific configuration of the working unit W will be described. The working part W is disposed in the front part of the machine body, and includes two left and right transmission frames 18 and 18 extending obliquely forward and upward from the front part of the mission case 5, and left and right extending obliquely forward and downward from the front part of the mission case 4. The two support frames 19 and 19 are attached to the respective front ends.
[0026]
  The sampling / conveying device 2 has an upper pulley (1st pulley) 20, 20 and lower pulleys 21, 21 and tension pulleys 22, 22; 22 and 22 are wound around conveyor belts 17 and 17, and the upper and lower pulleys 20 and 20 drive and rotate the left and right conveyor belts 17 and 17). Is driven and rotated. The left and right transport belts 17 and 17 rotate in a direction in which the outer peripheral surfaces of the left and right inner belts move from the front side to the rear side. The transmission structure for driving and rotating the left and right conveying belts 17 and 17 will be described. First, the power in the transmission case 5 is transmitted to the drive shafts 23 and 23 in the left and right transmission frames 18 and 18. , 23, the pulleys 20 and 20 on the upper side of the sampling / conveying device 2 attached so as to rotate integrally are rotated. The front end portions of the drive shafts 23, 23 protruding upward from the pulleys 20, 20 are the upper surfaces of the sampling / conveying device 2 (the upper and lower pulleys 20, 20; 21, 21 and the flat plate member that covers the upper surfaces of the conveying belts 17, 17. The first transmission cases 24, 24 fixed to the upper surface of the first transmission cases 24, 24 are inserted into the first transmission cases 24, 24, and the sprockets 25, 25 are attached so as to rotate together. The left and right first transmission cases 24, 24 are provided so as to extend obliquely upward and outward from the left and right sides of the drive shafts 23, 23. The second transmission is provided with the transmission shafts 26, 26 on the upper surface of the upper end side portion and extending upward. Cases 27 and 27 are fixed. The lower end portions of the transmission shafts 26 and 26 in the second transmission cases 27 and 27 enter the first transmission cases 24 and 24, and the sprockets 28 and 28 are attached to the lower end portions so as to rotate integrally. Transmission chains 29 and 29 are applied to 28 and the sprockets 25 and 25 at the front ends of the drive shafts 23 and 23. On the upper end of the transmission shafts 26, 26, the upper pulley (Second pulley) Install 30 and 30 so as to rotate together. The upper transport device 15 wraps the transport belts 16 and 16 around the upper pulleys 30 and 30 and the lower pulleys 31 and 31, and the left and right transport belts 16 and 16 are driven to rotate by the drive rotation of the upper pulleys 30 and 30. It is configured to do. Accordingly, the power in the transmission case 5 is transmitted to the sampling and conveying device 2 via the drive shafts 23 and 23, whereby the upper pulleys 20 and 20 are driven and rotated, and the conveying belts 17 and 17 are driven and rotated. Further, the power transmitted through the drive shafts 23, 23 is transmitted from the first transmission cases 24, 24 and the second transmission cases 27, 27 (sprockets 25, 25; 28, 28, transmission chains 29, 29, transmission). It is transmitted to the upper conveying device 15 via the shafts 26, 26), whereby the upper pulleys 30, 30 are driven and rotated, and the conveying belts 16, 16 are rotated. The lower pulleys 31, 31 on the upper transport device 15 are supported by support members 32, 32 fixed to the lower upper surface of the sampling transport device 2.
[0027]
  As described above, the outer peripheral surfaces of the belts 16 and 16 on the left and right inner sides of the upper conveying device 15 are extracted and separated from each other at a wider interval than the distance between the left and right inner sides of the conveying belts 17 and 17 of the conveying device 2. Therefore, the transmission shafts 26 and 26 that are the drive shafts of the upper pulleys 30 and 30 of the upper transport device 15 are located on the left and right outer sides of the drive shafts 23 and 23 that drive and rotate the upper pulleys 20 and 20 of the sampling transport device 2. Will be placed. Then, the upper conveying device via the first transmission portion that is transmitted in the left and right outer directions and the second transmission portion that is transmitted in the upward direction from the drive shafts 23 and 23 that drive and rotate the pulleys 20 and 20 on the upper side of the sampling and conveying device 2. If it is configured to transmit to the upper pulleys 30, 15, the driving configuration of the upper transport device 15 is simplified. Further, a first transmission portion (first transmission cases 24, 24 in the above example) that transmits in the left and right outer directions is provided on the upper surface side of the conveying device 2, and the second transmission portion (upper side) is provided on the upper surface side of the first transmission portion. In the example, by arranging the second transmission cases 27 and 27) in series, as shown in FIG. 5, it is possible to secure a sufficient space for the transported crop body P to pass through, and the first transmission section (first The transmission cases 24, 24) and the second transmission portion (second transmission cases 27, 27) do not hinder the passage of the crop body P, and the crop body P is transported well, so that the work is good. Yes.
[0028]
  Further, the conveyance start ends S1 and S1 of the conveyance bodies 16 and 16 of the upper conveyance apparatus 15 configured as described above, that is, the conveyance body 16 when the upper conveyance apparatus 15 conveys the crop body P from the front side to the rear side of the machine body. , 16 where the conveying action state starts is a line connecting the shaft centers of the respective support shafts 32, 32 of the lower left and right pulleys 31, 31 on the lower side of the upper conveying device 15 to the left and right, and the conveying belt 16, It becomes a part which 16 outer peripheral surfaces cross. From here, the conveyance belts 16 on the left and right center side move obliquely upward and rearward at substantially the same interval, and convey the crop body P therebetween. Further, the conveying start ends S2 and S2 of the conveying bodies 17 and 17 of the sampling and conveying apparatus 2, that is, the conveying action of the conveying bodies 17 and 17 when the sampling and conveying apparatus 2 conveys the crop body P from the front side to the rear side of the machine body. The place where the state starts includes a line connecting the shaft centers of the left and right pulleys 21 and 21 of the lower left and right pulleys 21 and 21 on the lower side of the sampling and conveying device 2 to the left and right, and outer peripheral surfaces of the left and right center conveyor belts 17 and 17. Is the part that intersects. From here, the conveying belts 17 on the left and right center side are in contact with each other or close to each other and move obliquely upward and rearward to convey the stalk portion a on the root side of the crop body P.
[0029]
  The lower end portions of the left and right conveyor belts 17, 17 of the sampling / conveying device 2 are arranged so as to be located near the upper surface of the bag U, and when the machine moves forward with the traveling device D straddling the bag U, the sampling / conveying is performed. Between both lower end portions (conveyance start end portions S2 and S2) of the left and right transport belts 17 and 17 of the apparatus 2, the stem portion a on the root side of the ground portion of the crop body P that grows on the straw U of the field G enters. It will be sandwiched and held. In this state, while the machine body is advanced by the traveling device D, the left and right conveyor belts 17 and 17 are driven and rotated so that the portion sandwiching the crop body P moves obliquely upward and rearward, thereby growing on the ridge U. The crop body P is extracted from the field G and conveyed upward.
[0030]
  On the lower left and right sides of the front part of the working part W, supports (here, rolling wheels) 34 and 34 for supporting the working part W on the field G are provided. By providing the support bodies 34, 34, the working unit W is removed when the crop body P is removed from the cocoon U by transporting the crop body P upward while sandwiching the crop body P growing on the cocoon U. It is possible to support the working portion W so as to be pulled down by the support members 34 and 34 while trying to descend. Thereby, the height with respect to the ridge U of the conveyance start end parts S2 and S2 of the sampling conveyance device 2 can be held at the set height, and the crop is sandwiched between the conveyance start end portions S2 and S2 of the conveyance belts 17 and 17 of the sampling conveyance device 2. The location of the body P can be held at the set location, and the work of sandwiching the crop body P, transporting it upward and extracting it can be performed satisfactorily. Further, the support members 34 and 34 are grounded to the farm scene at the same position as or in the vicinity of the transport start end portions S2 and S2 of the transport belts 17 and 17 in the longitudinal direction of the machine body. , S2 can be accurately maintained at the set height with respect to the heel U. Further, the supports 34 and 34 are configured such that the height can be adjusted by an operation tool 35 provided in the vicinity of the steering handle 8 of the steering unit O. Specifically, arms 37 and 37 are fixed to the left and right ends of the horizontal shaft 36 rotatably supported by the support frames 19 and 19, and the support wheels 34 and 34 are freely rotatable at the tips of the arms 37 and 37. It is attached to. An arm 38 extending downward is fixed to the left and right intermediate portion of the horizontal shaft 36, and a rod 39 is connected to the lower end portion of the arm 38. The rod 39 extends toward the steering handle 8 and has a rear end portion slidably supported by a support member 40 fixed to the handle frame 10. The outer peripheral surface of the rear end portion of the rod 39 is threaded, and the hollow portion on the axial center side of the adjusting rod 41 that cannot move in the axial direction with respect to the support member 40 and is rotatable around the axial center. A threaded portion formed on the inner surface is fitted. An operating tool 35 formed in the form of a rotary handle is attached to the rear end of the adjusting rod 41. When the operating rod 35 is rotated and the adjusting rod 41 is rotated around the axis of the rod, the rear end portion of the rod 39 enters and exits the screw fitting portion of the adjusting rod 41, so that the arm 38 rotates back and forth. By moving, the horizontal shaft 36 and the arms 37, 37 rotate, and the support wheels 34, 34 are adjusted in vertical height.
[0031]
  The left and right wheels 3 and 3 of the traveling device D are configured to be adjustable to different heights so that the posture of the airframe in the left and right direction can be appropriately corrected on an inclined ground. In the illustrated example, it is configured so that it can be manually performed by the operation lever 42, but it may be configured to be adjusted using a driving device such as a hydraulic cylinder.
[0032]
  In the illustrated example, a support body 43 that supports the left and right of the crop body P is provided on the upper side of the upper transport device 15. Specifically, the support body 43 is transported to the upper support members 44 and 44, which are fixedly attached to the upper surface of a flat cover member that covers the upper side surfaces of the left and right transport belts 16 and 16 of the upper transport device 15. Rod-like support frames (support members) 45, 45 extending in the transport direction of the upper transport device 15 are provided at positions above the left and right central portions of the left and right transport belts 16, 16 of the device 15. The support frames 45, 45 of the support 43 support the upper part from the left and right sides of the part of the crop body P sandwiched by the upper transport device 15. Therefore, even if the crop body P is tall, the crop body P is transported satisfactorily without causing the upper part of the crop body P to fall to the left and right during transportation, and work can be performed efficiently. Further, the left and right support frames 45, 45 are formed so that their front portions are bent outward in the left and right directions, so that the crop body P smoothly enters between the support frames 45, 45. ing. Further, the rear portion is formed in a shape bent to the side of the machine body, in this embodiment, to the left side, so that the crop body P discharged from the sampling and conveying device 2 can be easily discharged to the side of the machine body. .
[0033]
  In addition, left and right guide bodies 46, 46 in a forward and downward posture are provided so as to cover the upper side of the distal end portion of the sampling / conveying device 2. The front end portions of the left and right guide bodies 46, 46 extend forward and downward from the front end portion of the sampling conveyance device 2, and enter the left and right sides of the stem portion a on the root side of the crop body P during work travel. The lower side of the crop body P on the left and right sides of the stem part a is lifted by the upper surface plate portions 47 and 47 of the left and right guide bodies 46 and 46. This prevents the final harvest B near the farm scene from being sandwiched together when the sampling transport device 2 sandwiches the stem a on the root side of the crop body P, and damage to the final harvest B by the sampling transport device 2. Is less likely to occur.
[0034]
  The crop body P discharged from the sampling / conveying device 2 is guided by the rear part of the support frames 45, 45 bent to the side of the machine body and falls to the field G on the side of the machine body, or at the rear part of the sampling / conveying apparatus 2. It is received on the cradle 48 provided. When the crop body P accumulates on the cradle 48, the operator drops it onto the field G by hand.
[0035]
  Hereinafter, the operation of the harvester 1 will be described. In this harvesting machine 1, when the machine travels on the field G by the traveling device D, and the machine moves toward the crop body P in order to extract the crop body P from the field G, the sampling and conveying device 2 Then, the crop body P is removed from the field G by being conveyed upward with the stem a on the root side of the crop body P interposed therebetween. Moreover, the upper conveying device 15 provided on the upper side from the sampling conveying device 2 conveys the upper side from the stem portion a on the root side of the crop body P, and conveys it upward.
[0036]
  Furthermore, the conveyance start end S1 of the conveyance bodies 16 and 16 of the upper conveyance apparatus 15 is located at the same position as the conveyance start end S2 of the conveyance bodies 17 and 17 of the sampling conveyance apparatus 2 or on the rear side relative to the working travel direction. Therefore, the crop body P is subjected to the transporting action of the upper transporting device 15 after the root-side stem portion a is sandwiched by the sampling transporting device 2.
[0037]
  In addition, since the conveying body of the sampling and conveying apparatus 2 is composed of conveying belts 17 and 17 arranged side by side on the left and right, the belt outer peripheral surfaces on the left and right inner sides of the conveying belts 17 and 17 are provided in contact with or close to each other. The left and right conveying belts 17 and 17 of the sampling and conveying device 2 convey the upper part of the stalk a on the root side of the crop body P appropriately to convey the crop body P from the field G with certainty. In addition, the conveying body of the upper conveying device 15 is composed of conveying belts 16 and 16 arranged side by side on the upper side of the sampling and conveying device 2, and the belt outer peripheral surfaces on the left and right inner sides of the conveying belts 16 and 16 are extracted and conveyed. Since the conveyor belts 17 and 17 of the apparatus 2 are spaced apart from each other at a wider interval than the distance between the left and right inner sides, the left and right conveyor belts 16 and 16 of the upper conveyor device 15 are from the stem a on the root side of the crop body P. The upper portion, that is, the portion with a lot of final harvest B is conveyed upward, but the final harvest B is hardly damaged.
[0038]
  Since the left and right conveying belts 16 and 16 of the upper conveying device 15 are provided with a plurality of lugs 16a ..., 16a ... protruding outward from the belt rotation area, the plurality of lugs 16a ... , 16a... Enters and is caught in the thickened branches and leaves of the crop body P, so that the crop body P can be conveyed accurately regardless of the width of the crop body P.
[0039]
  Therefore, the harvesting machine 1 can perform the harvesting operation of extracting the crop body P such as green soybeans from the field G with a machine that has been conventionally performed by human power, and can save labor of the operation. In addition, since the sampling conveyance device 2 conveys the crop body P upward from the stalk portion a on the root side of the crop body P and extracts the crop body P from the field G, the final crop B is hardly damaged. Further, the stem a on the root side of the crop body P is sandwiched and transported by the sampling and transporting device 2, but the upper part is sandwiched and transported by the upper transporting device 15. Accordingly, the crop body P can be extracted in an appropriate posture and conveyed upward, and the final harvest B can be extracted and conveyed by the crop body P falling down in the left-right direction or the front-rear direction during the extraction conveyance. It is difficult to cause a situation where it is caught by other aircraft members and damaged.
[0040]
  And the conveyance start edge part S1 of the conveyance bodies 16 and 16 of the upper conveyance apparatus 15 is located in the back | inner side with respect to the conveyance starting direction S2 of the conveyance bodies 17 and 17 of the sampling conveyance apparatus 2, or from it. Therefore, it is possible to avoid occurrence of a situation in which the final harvested product B is scraped off by being pulled upward by the upper transport device 15 before the crop body P is subjected to the sampling operation by the sampling transport device 2.
[0041]
  In addition, since the left and right inner belt outer peripheral surfaces of the left and right conveyor belts 17 and 17 of the sampling and conveying apparatus 2 are provided in contact with or in close proximity to each other, the crop body P can be reliably extracted from the field G, and Since the left and right inner belt outer circumferential surfaces of the left and right conveyor belts 16 and 16 of the conveyor device 15 are spaced apart from each other at a wide interval, the final harvesting is performed while transporting upward across the portion where the final harvested B is attached. The damage to the object B is difficult to occur.
[0042]
  Further, since the left and right conveyor belts 16 and 16 of the upper conveyor 15 are provided with a plurality of lugs 16a... 16a that project outward from the belt rotation area, the width of the crop body P is increased or decreased. Regardless, the crop body P can be conveyed accurately.
[Brief description of the drawings]
FIG. 1 is a side view of a harvester.
FIG. 2 is a plan view of the harvester.
FIG. 3 is a partial cross-sectional view in rear view showing one working state of the harvester.
FIG. 4 is a partial cross-sectional view in rear view showing one working state of the harvester.
FIG. 5 is a partial cross-sectional view in rear view showing one working state of the harvester.
[Explanation of symbols]
1: Harvesting machine
2: Sampling conveyor
4: Engine
5: Mission case
8: Steering handle
9, 9: Grip part
15: Upper transfer device
16, 16: Transport body of upper transport device
16a ...; 16a ...: Conveying body lug of the upper conveying device
17, 17: Transport body of the sampling transport device
20, 20: pulley (first pulley)
23, 23: Drive shaft
24, 24: First movement case (transmission case)
26, 26: Transmission shaft
30, 30: pulley (second pulley)
34, 34: Support wheel
35: Operation tool
45, 45: Support frame (support member)
46, 46: guide body
47, 47: Upper surface plate portion
48: cradle
S1, S1: The conveyance start end part of the conveyance body of an upper conveyance apparatus
S2 and S2: the conveyance start end of the conveyance body of the sampling conveyance device
d: Working travel direction
P: Crop body
a: The stem part on the root side of the crop body
B: Final harvest
W: Working department

Claims

A sampling and conveying device (2) for conveying the crop body upward from the stalk portion on the root side of the crop body and an upper portion for conveying the crop body upward on the upper side of the sampling and conveying device (2) A work unit (W) is constructed from the transfer device (15), and support wheels (34, 34) for supporting the work unit (W) are provided below the front part of the work unit (W), and the rear part of the machine body is provided. Is provided with a pair of left and right wheels (3, 3), the steering handle (8) is provided at the rear of the fuselage so that the left and right grips (9, 9) of the steering handle (8) are located at the rear end of the aircraft, An operating tool (35) for adjusting the vertical height of the support wheels (34, 34) is provided near the steering handle (8),
Support members (45, 45) for supporting the crop body from the left and right above the portion where the upper transport device (15) supports the crop body and guiding it to the side of the machine body above the upper transport device (15). And receiving the crop body guided from the support member (45, 45) to the side of the machine body at the rear part of the sampling / conveying device (2) by bending the rear part of the support member (45, 45) to the left side of the machine body. A stand (48) is provided,
Right and left guide body (46, 46) provided in Maekudari orientation the tip of the feeder (2) the extraction, on the front side and below the transport device withdrawing the forward end (2) of the guide body (46, 46) It extends into the left and right sides of the stem part on the root side of the crop body, and the lower side of the crop body is lifted by the upper plate portion (47, 47) of the guide body (46, 46),
Constructed by mutually contacting or in proximity to the outer circumferential surface of the extraction conveyor device (2) first conveyor belt was arranged in left right (17, 17), the crop material the upper transport device (15) on the outer peripheral surface The second conveyor belts (16, 16) provided with a plurality of lugs (16a ..., 16a ...) to be conveyed are arranged side by side, and the distance between the left and right of the second conveyor belts (16, 16) is defined as the first conveyor belt. (17, 17) A harvester characterized in that it is wider than the left-right distance.

An engine (4) is provided at the rear of the machine body, a transmission case (5) is connected to the engine (4), and left and right drive shafts (23, 23) for transmitting the power of the transmission case (5) are provided. The drive pulley (20, 20) is pivotally attached to the upper end side of the drive shaft (23, 23) and protrudes upward from the first pulley (20, 20). A transmission case (24, 24) is provided on each of the shafts (23, 23) so as to extend obliquely outward and upward, and a transmission shaft (26, 26) is provided on the upper surface of the transmission case (24, 24). 2. The harvesting machine according to claim 1 , wherein the second pulley (30, 30) of the upper conveying device (15) is attached to the upper end of the transmission shaft (26, 26) .