JP2004242597A

JP2004242597A - Walking type tiller

Info

Publication number: JP2004242597A
Application number: JP2003036784A
Authority: JP
Inventors: Eiji Yamazaki; 栄二山崎
Original assignee: Seirei Industry Co Ltd
Current assignee: Yanmar Agribusiness Co Ltd
Priority date: 2003-02-14
Filing date: 2003-02-14
Publication date: 2004-09-02
Anticipated expiration: 2023-02-14
Also published as: JP4050630B2

Abstract

<P>PROBLEM TO BE SOLVED: To enable a walking type tiller obtained by attaching two kinds of tilling assistant tools to a rotary tilling device and operating by grounding the two kinds of the tilling assistant tools in ground-targeting operation to carry out the ground-targeting operation well by making the structure for installing the tilling assistant tools simple and enabling each of the tilling assistant tools to exhibit the prescribed performance exactly. <P>SOLUTION: One of the two kinds of the tilling assistant tools to be simultaneously grounded in the ground-targeting operation is attached to a machine frame of the rotary tilling device so as to be fixed or so as to be freely lifted and lowered, and the other is installed so as to be fixed, so as to be freely detachable, so as to be freely lifted or lowered, or so that the attached posture may be changed. A ground-targeting operation part of the other tilling assistant tool is regulated so as to be present in a rotating range of a tillage tine of the rotary tilling device, or a grounding operation part of the other tilling assistant tool is positioned at the upper part of the lowest part of one tilling assistant tool attached to the machine frame of the rotary tilling device. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、ロ−タリ爪軸筒に着装した耕耘爪によって土耕するロ−タリ耕耘装置を自走車体に連設し、そのロ−タリ耕耘装置に抵抗棒と耕深設定具など二種類の耕耘補助器具を併設して、前記耕耘爪の接地に加え、二種類の耕耘補助器具をも同時に接地させて対地作業する歩行型耕耘機に関する。
【０００２】
【従来の技術】
上記のような構成の歩行型耕耘機は、すでに公知となっている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開平８−３１７７０３号公報（第３頁第３柱３８行−４６行、第２図）
【０００４】
【発明が解決しようとする課題】
上記特許文献１にみられる従来のものは、ロ−タリ耕耘装置に抵抗棒と耕深設定用の尾ソリを併設し、これ等をも同時に接地させて対地作業することができるけれども、抵抗棒と尾ソリがロ−タリ耕耘装置の機枠に各個に設けられている二つの支持部に各別に装されて両者がロ−タリ耕耘装置の機枠から鉛直平行状に垂下する構成のものであったから、抵抗棒と尾ソリを取付ける為にロ−タリ耕耘装置の機枠構造が複雑化してコスト高となり、また、抵抗棒と尾ソリが鉛直平行状に垂下する故にそれ等の個々や両者間に雑草類が巻絡したり土砂類が付着堆積して膨大化しやすいといった問題があり、さらに、路上走行の為に別個の車輪を準備携行してその都度付け替えねばならないものであるから部品点数が増して益々コスト高となり、その付け替え所作も面倒で手数がかかるという問題もあった。本発明は、かかる問題を解消することを目的としてなされたもので、目的達成のために次のような技術的手段を講じている。
【０００５】
【課題を解決するための手段】
すなわち、請求項１に係る歩行型耕耘機は、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒に着装した耕耘爪によって土耕するロ−タリ耕耘装置を自走車体に連設し、そのロ−タリ耕耘装置に二種類の耕耘補助器具を併設して、ロ−タリ爪軸筒に着装した耕耘爪と二種類の耕耘補助器具を同時に接地させて対地作業する歩行型耕耘機において、一方の第１耕耘補助器具をロ−タリ耕耘装置の機枠に取付けるとともに、第２耕耘補助器具を第１耕耘補助器具に一体的に連設したことを特徴とする。
【０００６】
また、請求項２に係る歩行型耕耘機は、請求項１に記載された構成を備える歩行型耕耘機において、二種類の耕耘補助器具のうち第１耕耘補助器具をロ−タリ耕耘装置の機枠に昇降調節自在に取付け、その第１耕耘補助器具に第２耕耘補助器具を一体的に連設して第１耕耘補助器具の昇降調節により第２耕耘補助器具も共に昇降調節されるようにしたことを特徴とする。
【０００７】
また、請求項３に係る歩行型耕耘機は、請求項１又は請求項２に記載された構成を備える歩行型耕耘機において、ロ−タリ耕耘装置の機枠に取付けられる第１耕耘補助器具に一体的に連設する第２耕耘補助器具を、第１耕耘補助器具に対して単独に昇降調節し得るように設けたことを特徴とし、また、請求項４に係る歩行型耕耘機は、第１耕耘補助器具に一体的に連設する第２耕耘補助器具を、第１耕耘補助器具（２７）に対して取付け姿勢可変に設けたことを特徴とし、請求項５に係る歩行型耕耘機は、第１耕耘補助器具に一体的に連設する第２耕耘補助器具を第１耕耘補助器具に対して取り外し可能に設けたことを特徴とする。
【０００８】
また、請求項６に係る歩行型耕耘機は、請求項１乃至請求項４のいずれかに記載された構成の歩行型耕耘機において、二種類の耕耘補助器具のうち第１耕耘補助器具を、ロ−タリ耕耘装置の機枠から垂下する支持ア−ムに尾輪を支持した耕深設定具とし、第２耕耘補助器具を、前記支持ア−ムから延出する縦杆の延出端にすき先体を備えた抵抗付与具としたことを特徴とする。
【０００９】
また、請求項７に係る歩行型耕耘機は、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒に耕耘爪を備えたロ−タリ耕耘装置を自走車体に連設し、該ロ−タリ耕耘装置にその機枠から垂下する支持ア−ムに尾輪を支持させた耕深設定具と、前記支持ア−ムから延出する縦杆の延出端にすき先体を設けた抵抗付与具とを併設してロ−タリ爪軸筒の耕耘爪と耕深設定具及び抵抗付与具を同時に接地させて対地作業する歩行型耕耘機において、前記耕深設定具の支持ア−ムを前傾姿勢にして耕耘爪の先端回転軌跡の後側近傍部を通って垂下させてその垂下端部に尾輪を遊転支持すると共に、その支持ア−ムの垂下中程部から前記尾輪の直前部を通って前方斜め下向きに抵抗付与具の縦杆を延出させて抵抗付与具のすき先体と耕深設定具の尾輪とが前後一直線状に位置するようにしたことを特徴とする。
【００１０】
また、請求項８に係る歩行型耕耘機は、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒に耕耘爪を備えたロ−タリ耕耘装置を自走車体に連設し、ロ−タリ耕耘装置にその機枠から垂下する支持ア−ムに尾輪を支持させた耕深設定具と前記支持ア−ムから延出する縦杆の延出端にすき先体を設けた抵抗付与具とを併設してロ−タリ爪軸筒の耕耘爪と耕深設定具及び抵抗付与具を同時に接地させて対地作業する歩行型耕耘機において、耕深設定具の支持ア−ムをロ−タリ耕耘装置の機枠に昇降調節自在に取付け前傾姿勢にして耕耘爪の先端回転軌跡の後側近傍部を通って垂下させてその垂下端部に尾輪を遊転支持すると共に、支持ア−ムの垂下中程部から前記尾輪の直前部を通って前方斜め下向きに前記抵抗付与具の縦杆を延出させて、抵抗付与具のすき先体と耕深設定具の尾輪とを前後一直線状に位置させ、且つ、抵抗付与具のすき先体を前記尾輪の最下接地点と同じ高さか又はそれよりも上方に位置させて対地作業するようにしたことを特徴とする。
【００１１】
また、請求項９に係る歩行型耕耘機は、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒に耕耘爪を備えたロ−タリ耕耘装置を自走車体に連設し、ロ−タリ耕耘装置にその機枠から垂下する支持ア−ムに尾輪を支持させた耕深設定具と前記支持ア−ムから延出する縦杆の延出端にすき先体を設けた抵抗付与具とを併設してロ−タリ爪軸筒の耕耘爪と耕深設定具及び抵抗付与具を同時に接地させて対地作業する歩行型耕耘機において、前記支持ア−ムを前傾姿勢にして耕耘爪の先端回転軌跡の後側近傍部を通って垂下させその垂下端部に尾輪を遊転支持すると共にその支持ア−ムの垂下中程部から前記尾輪の直前部を通って前方斜め下向きに抵抗付与具の縦杆を延出させて、支持ア−ムから前方斜め下向きに伸延する縦杆の大部分の前縁部と、すき先体の尖端部とが前記耕耘爪の先端回転軌跡内に入り込み位置した態勢で対地作業を行うようにしたことを特徴とする。
【００１２】
また、請求項１０に係る歩行型耕耘機は、請求項７乃至請求項９のいずれかに記載された構成を備える歩行型耕耘機において、耕深設定具の支持ア−ムから前方斜め下向きに延出する抵抗付与具の縦杆の延出角度を変更できるようにしてあることを特徴とし、また、請求項１１に係る歩行型耕耘は、耕深設定具の支持ア−ムに交差状に固設した鞘状支持体に抵抗付与具の縦杆を挿通し、その縦杆を鞘状支持体に沿って上下移動することにより支持ア−ムに対する縦杆の取付角度を一定に保持したままで抵抗付与具を単独に昇降調節できるようにしたことを特徴とする。
【００１３】
また、請求項１２に係る歩行型耕耘機は、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒に耕耘爪を備えたロ−タリ耕耘装置を自走車体に連設し、ロ−タリ耕耘装置にその機枠から垂下する支持ア−ムに尾輪を支持させた耕深設定具と前記支持ア−ムから延出する縦杆の延出端にすき先体を設けた抵抗付与具とを併設してロ−タリ爪軸筒の耕耘爪と耕深設定具及び抵抗付与具を同時に接地させて対地作業する歩行型耕耘機において、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒を自走車体前進時の走行車輪と同方向に回転する爪軸筒とそれとは逆方向に回転する爪軸筒とが同芯に並設された部分正逆転ロ−タリ爪軸筒に構成して、その部分正逆転ロ−タリ爪軸筒の耕幅中央部後方位に前記耕深設定具と牽引抵抗付与具とが前後一直線状に位置するようにしてあることを特徴とする。
【００１４】
また、請求項１３に係る歩行型耕耘機は、請求項１２に記載された構成を備える歩行型耕耘機において、センタ−ドライブケ−スに支持されるロ−タリ爪軸筒が自走車体前進時の走行車輪と同方向に回転する爪軸筒とそれとは逆方向に回転する爪軸筒とを同芯に並設して構成され、両爪軸筒の双方又は個々の回転方向を切換えできるようにしてあることを特徴とする。
【００１５】
また、請求項１４に係る歩行型耕耘機は、請求項１２に記載された構成を備える歩行型耕耘機において、自走車体前進時の走行車輪とは逆方向に回転する爪軸筒をセンタ−ドライブケ−スの横脇部に配設し、それに着装した耕耘爪による逆転耕耘域内で前記センタ−ドライブケ−スの後方延長部位に耕深設定具と牽引抵抗付与具とが前後一直線状に位置するようにしたことを特徴とする。
【００１６】
【発明の実施の形態】
つぎに、実施の形態について図面を参照して説明する。図１は本発明に係る管理機（歩行型耕耘機）の全体側面図、図２はロ−タリ耕耘装置の拡大側面図、図３は同ロ−タリ耕耘装置の平面図、図４は耕耘補助器具を抽出し拡大して示した後面図、図５は耕耘補助器具の要部の平面概略図、図６は耕耘補助器具を前面視した作業態様説明図である。
【００１７】
図１において歩行型耕耘機は、左右一対の走行車輪（１０）（１０）を支持した走行ミッションケ−ス（１１）と、走行ミッションケ−ス（１１）から前延するフレ−ムに搭載したエンジン（１２）と、前記走行ミッションケ−ス（１１）又はこれに連設される部材から後延される操縦ハンドル（１３）等によって構成された自走車体（１４）に、ロ−タリ耕耘装置（１５）を一体或いは着脱自在に連設して構成されている。
【００１８】
そして、エンジン（１２）の出力軸（１６）と走行ミッションケ−ス（１１）の入力軸（１７）の間が主伝動ケ−ス（１８）に内蔵した主伝動機構で動力断続自在に連動連結されて、入力軸（１７）から走行ミッションケ−ス（１１）内の走行伝動機構を経て走行ミッションケ−ス（１１）下部の左右車軸（１９）（１９）に伝達される動力で前記左右の走行車輪（１０）（１０）を回転駆動し、また、走行ミッションケ−ス（１１）のＰＴＯ軸からＰＴＯケ−ス（２０）内の出力伝動機構を経て前記ロ−タリ耕耘装置（１５）側の受動軸（２１）に伝達される動力でロ−タリ耕耘装置（１５）のロ−タリ爪軸筒（２２）を、自走車体（１４）前進時の走行車輪（１０）（１０）と同じ方向（図１において反時計回り方向）に回転駆動するようになっている。
【００１９】
ロ−タリ耕耘装置（１５）は、連結部材（２３）を介して走行ミッションケ−ス（１１）に一体的に連設されるセンタ−ドライブケ−ス（２４）に前記ロ−タリ爪軸筒（２２）を水平横向きに支持し、そのロ−タリ爪軸筒（２２）の外周に複数の耕耘爪（２５）を軸芯方向及び回転方向に位相を異ならせて配設して、耕耘爪（２５）群の先端回転軌跡（２５ａ）の外方上部及び左右側部を前記センタ−ドライブケ−ス（２４）に装設する耕耘部カバ−（２６）で被蓋して構成されている。
そして、ロ−タリ耕耘装置（１５）の機枠を構成する耕耘部カバ−（２６）には二種類の耕耘補助器具である第１耕耘補助器具（２７）と第２耕耘補助器具（２８）とが設けられている。
【００２０】
なお、図３にみられるようにロ−タリ爪軸筒（２２）は、前記自走車体（１４）の車体中心線（Ｙ‐Ｙ）上に位置するセンタ−ドライブケ−ス（２４）に左右対称に支持される左右の爪軸筒によって構成されて、その軸芯（Ｘ−Ｘ）は前記車体中心線（Ｙ‐Ｙ）に対して直交するものとなっている。
【００２１】
また、図示の実施態様における耕耘部カバ−（２６）は、耕耘爪（２５）群の先端回転軌跡（２５ａ）の最上端部分から適宜上方に離間した部位において前記車体中心線（Ｙ‐Ｙ）に沿って位置する骨部材（２９）と、その骨部材（２９）の左右の縁辺部にそれぞれヒンジ（３０）（３０）を介して上下回動可能に装着される左右の天板部（３１）（３１）と、左右の天板部（３１）（３１）の外端縁に開閉可能に連設される左右の側板部（３２）（３２）とで構成され、骨部材（２９）及び左右の天板部（３１）（３１）の前端には前記耕耘爪群の先端回転軌跡（２５ａ）の最前端から適宜前方に離間する部位を通って垂下する土跳ね制止板（３３）が設けられ、また、左右の天板部（３１）（３１）の後端部には後方への耕土飛散を阻止するゴム垂れ（３４）が垂設されている。
【００２２】
そして、通常の対地作業の場合には、前記左右の天板部（３１）（３１）を両天板部の上面側において両者に跨って組成されている開度調節支持機構（３５）によって略水平姿勢になるように維持すると共に、左右の側板部（３２）（３２）を左右の天板部（３１）（３１）端部から略鉛直に垂下する姿勢に保持して作業を行い、対地作業が土入れや土盛作業である場合には、前記開度調節支持機構（３５）を操作することによって左右の天板部（３１）（３１）をヒンジ（３０）（３０）中心で上方に開き回動して維持し、また、左右の側板部（３２）（３２）も必要に応じて適宜に上下回動させて左右の天板部（３１）（３１）に対する姿勢を変更し維持して作業するものとなっている。
【００２３】
つぎに、ロ−タリ耕耘装置（１５）に設けられる第１耕耘補助器具（２７）と第２耕耘補助器具（２８）について図面を参照して説明する。図示されている第１耕耘補助器具（２７）は、断面矩形の杆材からなる支持ア−ム（２７Ａ）の下端部に尾輪（２７Ｂ）を遊転支持した耕深設定具に構成され、第２耕耘補助器具（２８）は、前記支持ア−ム（２７Ａ）から延出する断面矩形の杆材からなる縦杆（２８ａ）の延出端にすき先体（２８ｂ）を備えた抵抗付与具に構成されている。
【００２４】
耕深設定具（第１耕耘補助器具２７）の前記支持ア−ム（２７Ａ）は、前記耕耘部カバ−（２６）の骨部材（２９）の後端部寄り部位に前傾姿勢で固設されている鞘状取付部（３６）に下方からスライド自在に挿通されて、鞘状取付部（３６）の後面部および左右何れかの横側面部に設けられている固定具（３７）（３８）によって任意の昇降調節位置に固定維持できるようになっている。
【００２５】
そして、支持ア−ム（２７Ａ）が、前記鞘状取付部（３６）の前傾角度に沿った前傾姿勢で前記耕耘爪（２５）群の先端回転軌跡（２５ａ）の後側近傍部を通って垂下し、その垂下端部に遊転支持されている尾輪（２７Ｂ）が耕耘爪（２５）群の先端回転軌跡（２５ａ）の外方後位で接地して、耕耘爪（２５）群による耕耘深度を設定するようになっている。
【００２６】
一方、耕耘爪（２５）群の先端回転軌跡（２５ａ）の外方後位に存する支持ア−ム（２７Ａ）の垂下中程部の横側面には、前記支持ア−ム（２７Ａ）に対して交差する後傾姿勢にして鞘状支持体（３９）が設けられ、この鞘状支持体（３９）に抵抗付与具（第２耕耘補助器具２８）の縦杆（２８ａ）が摺動移動可能に挿通されて、鞘状支持体（３９）の横側面部に設けられている押しボルト等の固定具（４０）により適宜の摺動移動位置に固定維持できるようになっている。
【００２７】
そして、抵抗付与具の縦杆（２８ａ）は、前記耕深設定具の尾輪（２７Ｂ）の直前部（尾輪より前方で尾輪の横幅内部分）を通って前方斜め下向きに延出し、その際、側面視（図２参照）において抵抗付与具の縦杆（２８ａ）の大部分の前縁部とすき先体（２８ｂ）の尖端部とが前記耕耘爪（２５）の先端回転軌跡（２５ａ）の内方に入り込み、かつ、すき先体（２８ｂ）全体は前記尾輪（２７Ｂ）の最下接地点と同じ高さか又はそれよりも上方に位置するものとしてある。又、すき先体（２８ｂ）と尾輪（２７Ｂ）とは平面視（図３参照）においてセンタ−ドライブケ−ス（２４）の後方にあって車体中心線（Ｙ‐Ｙ）上に前後一直線状に位置する。
【００２８】
なお、前記抵抗付与具の縦杆（２８ａ）は、耕深設定具の支持ア−ム（２７Ａ）に設けられる前記鞘状支持体（３９）の取付角度を変更できるようにするなど適宜の手段を講じることによって、支持ア−ム（２７Ａ）から前方斜め下向きに延出する延出角度を変更調節できるようにすれば、その調節所作により牽引抵抗力を適宜に調節することができる。
【００２９】
このような構成の歩行型耕耘機によって対地作業するに際しては、鞘状取付部（３６）に設けられている固定具（３７）（３８）を一旦緩め、ロ−タリ爪軸筒（２２）の耕耘爪（２５）による対地作業深度が所望深度になるように耕深設定具（２７）の尾輪（２７Ｂ）を昇降調節して前記固定具（３７）（３８）を再固定すれば、抵抗付与具（２８）も耕深設定具（２７）に対する相対姿勢及び相対高さ位置が所定のように保たれたままで共に昇降調節され、抵抗付与具（２８）のすき先体（２８ｂ）は、ロ−タリ爪軸筒（２２）の耕耘爪（２５）による対地作業深度を設定する高さ位置に維持されている尾輪（２７Ｂ）の最下接地点と同じ高さか又はそれよりも上方に位置維持される。
【００３０】
そうして、ロ−タリ爪軸筒（２２）を回転駆動しながら自走車体（１４）を前進走行させれば、ロ−タリ爪軸筒（２２）に着装した耕耘爪（２５）群が、前進走行する自走車体（１４）の走行車輪（１０）（１０）と同じ方向に回転して土壌を耕起するのであるが、その際にはセンタ−ドライブケ−ス（２４）の下方に前記耕耘爪（２５）の耕起作用が及ばない残耕部分が生じ、この残耕部分の土中を抵抗付与具（２８）の縦杆（２８ａ）及びすき先体（２８ｂ）が進行し、その後位を耕深設定具（２７）の尾輪（２７Ｂ）が接地転動して進行する。
【００３１】
故に、硬い残耕部分を進行する抵抗付与具（２８）が、ロ−タリ爪軸筒（２２）に着装された耕耘爪（２５）の土中打ち込みによって生ずる車体ダッシングを効果的に相殺し、それと同時に抵抗付与具（２８）により前記残耕部分が切削処理されることとなり、その処理跡部分を耕深設定具（２７）の尾輪（２７Ｂ）が転動進行して耕耘深度の安定した対地作業が行われる。
【００３２】
また、抵抗付与具（２８）の縦杆（２８ａ）が前傾姿勢の支持ア−ム（２７Ａ）から前方斜め下向き姿勢（後傾姿勢）に延出されて、同縦杆（２８ａ）の大部分の前縁部とすき先体（２８ｂ）の尖端部とが耕耘爪（２５）の先端回転軌跡（２５ａ）の内方に入り込み位置され、すき先体（２８ｂ）全体は前記尾輪（２７Ｂ）の最下接地点と同じ高さか又はそれよりも上方に位置されているので、硬い残耕部分への関与による負荷が強固に受止められると共に、すき先体（２８ｂ）が過度に土中に食い込むこともなく、さらに、抵抗付与具の縦杆（２８ａ）等に付着せんとする雑草土砂類は耕耘爪（２５）によって削ぎ落されて抵抗付与具の縦杆（２８ａ）やそれと耕深設定具の支持ア−ム（２７Ａ）との間などに堆積することが少なくなり、これらが相俟って車体ダッシングの阻止および残耕処理が好適に果されながらの対地作業がより良好に行われるのである。
【００３３】
また、対地作業が終わって路上走行する場合などには、耕耘爪（２５）群の先端回転軌跡（２５ａ）の最下端部分が地面から上方に適宜離間するように耕深設定具（２７）の尾輪（２７Ｂ）を降下調節し、抵抗付与具（２７）の縦杆（２８ａ）を引上げてその下端のすき先体（２８ｂ）の対地離間高さを大にして安全に路上走行することができるのであり、路上走行に際して抵抗付与具（２７）や耕深設定具（２７）を取り外して別途に準備した走行用機器を付替えるような煩わしい所作を必要とせず容易に路上走行態勢に変換できるのである。
【００３４】
なお、抵抗付与具（２８）のすき先体（２８ｂ）が、耕深設定具（２７）の最下接地点よりも上方に位置維持されるように設定されている場合には、上述したように耕深設定具（２７）の尾輪（２７Ｂ）を降下調節しても抵抗付与具（２７）のすき先体（２８ｂ）は地面から上方に離間した態勢に依然として維持されるので、この場合には、抵抗付与具（２７）の縦杆（２８ａ）を引上げる所作を省いても路上走行し得る態勢となる。
【００３５】
次に、図示の実施例においては、ロ−タリ爪軸筒（２２）及びそれに着装された耕耘爪（２５）が自走車体（１４）前進時の走行車輪（１０）（１０）と同方向にのみ回転するものとしているが、場合によっては、ロ−タリ爪軸筒（２２）及びそれに着装された耕耘爪（２５）を、前記走行ミッションケ−ス（１１）のＰＴＯ軸からロ−タリ爪軸筒（２２）に動力伝達する伝動経路に組み込まれた正逆転機構を切換えることによって自走車体前進時の走行車輪（１０）（１０）とは逆方向にも回転させることができるものとしてもよい。
【００３６】
そして、この実施形態のものにおいて、ロ−タリ爪軸筒（２２）及びそれに着装された耕耘爪（２５）を自走車体前進時の走行車輪（１０）（１０）とは逆方向に回転させて対地作業する際には、耕深設定具（２７）に連設した抵抗付与具（２８）が前記耕耘爪（２５）による車体ダッシング抑止作用を補完し、センタ−ドライブケ−ス（２４）の下方に生ずる残耕部分を耕起処理する役目を果すのであり、また、場合によっては、抵抗付与具（２８）を取り外して耕深設定具（２７）のみとした態勢で作業しても、自走車体前進時の走行車輪（１０）（１０）とは逆方向に回転する耕耘爪（２５）によって車体のダッシングは抑止されるのである。
【００３７】
また、図示の実施例のもの、或いは図示の実施例のロ−タリ爪軸筒を必要に応じて正逆転させ得るように構成したものでは、ロ−タリ爪軸筒（２２）とそれに着装された耕耘爪（２５）が全て一様に同方向に回転するが、これは図７に示しているような部分正逆転ロ−タリ爪軸筒に構成してもよい。
【００３８】
すなわち、図７のように、センタ−ドライブケ−ス（２４）の下部に左右一対の外ロ−タリ軸（５０）（５０）と、外ロ−タリ軸（５０）（５０）を相対回転自在に貫通して左右に延出する内ロ−タリ軸（５１）とを内外二重軸状に軸受支承して、これらの外ロ−タリ軸（５０）（５０）と内ロ−タリ軸（５１）とを、互いに反対方向の回転動力を伝達する２系統の伝動機構（５２）（５２）、（５３）によって互いに反対方向に回転駆動するように構成して、外ロ−タリ軸（５０）（５０）に被着した爪軸筒（２２ａ）及びそれに着装された耕耘爪（２５ｂ）と、内ロ−タリ軸（５１）に被着した爪軸筒（２２ｂ）及びそれに着装された耕耘爪（２５ｃ）とが、背反に回転するように構成してもよい。
【００３９】
さらに、図７のようにロ−タリ爪軸筒（２２）を部分正逆転ロ−タリ爪軸筒としたものにおいて、前記２系統の伝動機構（５２）（５２）、（５３）の回転方向を切換えできるように構成して、必要に応じ両爪軸筒（２２ａ）（２２ｂ）の回転方向を変換できるようにしてもよく、また場合によっては、前記２系統の伝動機構（５２）（５２）、（５３）のうち何れか一方の回転方向を切換えできるようにする、或いは内ロ−タリ軸（５１）に対してはフリ−回転状態で外ロ−タリ軸（５０）（５０）側に結合装着する爪軸筒を付替え装着するように成すなどして、必要に応じ全ての爪軸筒及びそれに着装した耕耘爪を同方向に回転させて作業することもできるものにしてもよい。
【００４０】
そして、ロ−タリ爪軸筒を部分正逆転ロ−タリ爪軸筒とした上記何れの実施例のものにおいても、耕深設定具（２７）に連設した抵抗付与具（２８）は、背反に回転する耕耘爪（２５ｂ）（２５ｃ）による車体ダッシング抑止作用を補完し、センタ−ドライブケ−ス（２４）の下方に生ずる残耕部分を耕起処理する役目をも果して良好な対地作業が行われるのである。
【００４１】
【発明の効果】
本発明は、以上に説明したように構成されているので、以下に記載する効果を奏する。
【００４２】
ロ−タリ爪軸筒に着装した耕耘爪と共に同時に接地させて対地作業する二種の耕耘補助器具（耕深設定具２７）（抵抗付与具２８）をロ−タリ耕耘装置に設けるものでありながら、一方の第１耕耘補助器具（２７）のみをロ−タリ耕耘装置の機枠に取付けて、他方の第２耕耘補助器具（２８）は第１耕耘補助器具（２７）に一体的に連設する構成としてあるので、ロ−タリ耕耘装置の機枠構造が複雑化してコスト高になることが回避され、一方の第１耕耘補助器具（２７）をロ−タリ耕耘装置の機枠に対して昇降調節することにより他方の第２耕耘補助器具（２８）の昇降調節も果たされることとなり調節所作も利便化される。
【００４３】
そして、第１耕耘補助器具（２７）に一体的に連設する第２耕耘補助器具（２８）を、第１耕耘補助器具（２７）に対して単独に昇降調節できるように設けことにより、必要に応じ相対高さ位置を変えて作業することもでき、又、第２耕耘補助器具（２８）を第１耕耘補助器具（２７）に対して取り外し可能に設けることにより圃場状況等作業条件の異なりに対応して第２耕耘補助器具（２８）を取り外して作業することもできる。
【００４４】
また、第１耕耘補助器具（２７）がロ−タリ耕耘装置の機枠から垂下する支持ア−ム（２７Ａ）に尾輪（２７Ｂ）を支持した耕深設定具であり、他方の第２耕耘補助器具（２８）が前記支持ア−ム（２７Ａ）から延出する縦杆（２８ａ）の延出端にすき先体（２８ｂ）を備えた抵抗付与具である場合に、抵抗付与具のすき先体（２８ｂ）と耕深設定具の尾輪（２７Ｂ）がセンタ−ドライブケ−ス（２４）の後方にあって前後一直線状に位置されることにより、センタ−ドライブケ−ス（２４）下方の硬い残耕部分の土中を抵抗付与具（２８）が進行して車体ダッシングを効果的に抑止しながら前記残耕部分を切削処理し、その処理跡部分を耕深設定具の尾輪（２７Ｂ）が転動進行して耕耘深度の安定した対地作業が行われる。
【００４５】
また、この際、抵抗付与具（２８）の縦杆（２８ａ）が前傾姿勢の支持ア−ム（２７Ａ）から前方斜め下向き姿勢に延出されて同縦杆（２８ａ）の大部分の前縁部とすき先体（２８ｂ）の尖端部とが耕耘爪（２５）の先端回転軌跡（２５ａ）の内方に入り込み位置され、すき先体（２８ｂ）全体が尾輪（２７Ｂ）の最下接地点と同じ高さか又はそれよりも上方に位置されることにより、硬い残耕部分への関与による負荷が強固に受止められると共に、すき先体（２８ｂ）が過度に土中に食い込むこともなく、抵抗付与具の縦杆（２８ａ）等に付着せんとする雑草土砂類は耕耘爪（２５）によって削ぎ落されて抵抗付与具の縦杆（２８ａ）やそれと耕深設定具の支持ア−ム（２７Ａ）との間などに堆積することが少なくなり、車体ダッシングの阻止および残耕処理が好適に果されながらの対地作業がより良好に行われる。
【００４６】
また、ロ−タリ爪軸筒（２２）の全体或いはロ−タリ爪軸筒（２２）の一部分をなす爪軸筒を自走車体前進時の走行車輪（１０）（１０）とは逆方向に回転させて作業作業するものである場合には、耕深設定具（２７）に連設した抵抗付与具（２８）が車体ダッシング抑止作用を補完し、センタ−ドライブケ−ス（２４）下方の残耕部分を耕起処理し、この場合にも耕深が安定した良好な対地作業が行われる。
【図面の簡単な説明】
【図１】本発明に係る管理機の全体側面図である。
【図２】ロ−タリ耕耘装置の拡大側面図である。
【図３】ロ−タリ耕耘装置の平面図である。
【図４】耕耘補助器具を抽出し拡大して示した後面図である。
【図５】耕耘補助器具の要部の平面概略図である。
【図６】耕耘補助器具を前面視した作業態様説明図である。
【図７】ロ−タリ爪軸筒の変形例を示した要部断面図である。
【符号の説明】
１０走行車輪
１４自走車体
１５ロ−タリ耕耘装置
２２ロ−タリ爪軸筒
２２ａ爪軸筒
２２ｂ爪軸筒
２４センタ−ドライブケ−ス
２５耕耘爪
２５ａ耕耘爪の先端回転軌跡
２５ｂ耕耘爪
２５ｃ耕耘爪
２７耕深設定具（第１耕耘補助具）
２７Ａ支持ア−ム
２７Ｂ尾輪
２８抵抗付与具（第２耕耘補助具）
２８ａ縦杆
２８ｂすき先体
３９鞘状支持体[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a rotary tillage device for cultivating soil with a tillage claw mounted on a rotary claw shaft cylinder is connected to a self-propelled vehicle body, and the rotary tillage device has two types such as a resistance rod and a tillage depth setting tool. The present invention relates to a walking type cultivator in which two types of tilling aids are simultaneously grounded in addition to the grounding of the tilling claw, in which a tilling assisting device is provided in parallel.
[0002]
[Prior art]
A walk-type cultivator having the above-described configuration is already known (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-8-317703 (page 3, column 3, lines 38-46, FIG. 2)
[0004]
[Problems to be solved by the invention]
In the prior art disclosed in Patent Document 1, although a rotary tilling device is provided with a resistance rod and a tail sled for setting a cultivation depth, and these can be grounded at the same time to perform grounding work, And a tail sled are separately mounted on two support portions provided on the machine frame of the rotary tillage device, respectively, and both of them are vertically suspended from the machine frame of the rotary tillage device. Since the resistance rod and tail sled are attached, the machine structure of the rotary tilling device is complicated and the cost is high, and since the resistance rod and tail sled hang down in a vertical parallel shape, each of them and both There is a problem that weeds are entangled or sediment adheres and accumulates easily between them.In addition, separate wheels must be prepared for traveling on the road and replaced each time, so the number of parts And the cost is getting higher and higher, Only instead of gesture is also a troublesome trouble there is a problem that it takes. The present invention has been made for the purpose of solving such a problem, and employs the following technical means to achieve the object.
[0005]
[Means for Solving the Problems]
That is, in the walking type cultivator according to the first aspect, a rotary tilling device for cultivating soil by a tilling claw mounted on a rotary claw shaft cylinder supported by a center drive case is connected to a self-propelled vehicle body. A walking type cultivator in which two types of tilling aids are provided in parallel with the rotary tilling device, and the cultivating claws mounted on the rotary claw shaft cylinder and the two types of tilling auxiliary devices are simultaneously grounded to ground. , One of the first tillage aids is attached to the machine frame of the rotary tillage device, and the second tillage aid is integrally connected to the first tillage aid.
[0006]
Further, a walking-type cultivator according to a second aspect of the present invention is a walking-type cultivator having the configuration described in the first aspect, wherein the first tilling-aid among the two types of tilling-aids is a rotary tilling device. A second tilling assist device is integrally connected to the first tilling assist device so that the first tilling assist device is integrally connected to the frame, and the second tilling assist device is also adjusted by raising and lowering the first tilling assist device. It is characterized by having done.
[0007]
Further, a walking-type cultivator according to a third aspect is the walking-type cultivator having the configuration described in the first or second aspect, wherein the first tilling assisting device attached to the machine frame of the rotary tilling device. A second tilling assist device integrally provided continuously is provided so as to be able to be individually raised and lowered with respect to the first tilling assist device, and the walking type tiller according to claim 4 is characterized in that: The walking tiller according to claim 5, characterized in that a second tillage assist device integrally provided with the first tillage assist device is provided in a variable mounting posture with respect to the first tillage assist device (27). A second tilling assist device integrally connected to the first tilling assist device is detachably provided to the first tilling assist device.
[0008]
Moreover, the walking-type cultivator according to claim 6 is the walking-type cultivator having the configuration according to any one of claims 1 to 4, wherein the first cultivation assistance tool of the two types of tilling assistance tools is: A tilling depth setting tool in which a tail wheel is supported on a supporting arm hanging down from a machine frame of a rotary tilling device, and a second tilling assisting device is provided at an extension end of a vertical rod extending from the supporting arm. It is characterized in that the resistance imparting tool is provided with a tip body.
[0009]
Further, in the walking type cultivator according to claim 7, a rotary tilling device provided with a tilling claw on a rotary claw shaft cylinder supported by a center drive case is connected to the self-propelled vehicle body. A rotary tillage device is provided with a tillage depth setting tool in which a tail ring is supported on a support arm hanging down from the machine frame, and a tip body is provided at an extension end of a vertical rod extending from the support arm. In the case of a walking type cultivator in which the cultivating claw of the rotary claw shaft cylinder, the cultivation depth setting tool and the resistance imparting tool are simultaneously grounded together with the resistance imparting tool and the grounding work, the support arm of the cultivating depth setting tool is provided. The tail wheel is tilted forward and suspended through the vicinity of the rear side of the rotation trajectory of the tilling claw to support the tail wheel at the lower end of the tilling. Extend the vertical rod of the resistance imparting tool obliquely downward and forward through the front part of the tail wheel, and add the tip of the resistance imparting tool and the tail wheel of the tillage setting tool. Characterized in that so as to be positioned around a straight line.
[0010]
Further, in the walking type cultivator according to claim 8, a rotary tilling device provided with a tilling claw on a rotary claw shaft cylinder supported by a center drive case is connected to the self-propelled vehicle body. A tillage cultivator, a tillage depth setting tool in which a tail ring is supported by a support arm hanging down from the machine frame, and a resistance provided with a tip body at an extension end of a vertical rod extending from the support arm. In a walking type cultivator in which a tilling claw of a rotary claw shaft cylinder, a cultivation depth setting tool, and a resistance imparting tool are simultaneously grounded together with an applicator, and a support arm of the cultivation depth setting tool is lowered. -Mounted on the machine frame of the tillage tilling device so that it can be lifted and lowered freely. It is tilted forward and droops through the vicinity of the rear side of the tip trajectory of the cultivation claw. The vertical rod of the resistance applicator extends obliquely downward and forward from the middle part of the arm, passing through the front part of the tail wheel. The tip body of the applicator and the tail wheel of the tillage setting tool are positioned in a straight line in the front-rear direction, and the tip body of the resistance applicator is at the same height as or above the lowest ground point of the tail wheel. And work on the ground.
[0011]
Further, in the walking type cultivator according to the ninth aspect, a rotary tilling device having a cultivating claw provided on a rotary claw shaft cylinder supported by a center drive case is connected to a self-propelled vehicle body. A tillage cultivator, a tillage depth setting tool in which a tail ring is supported by a support arm hanging down from the machine frame, and a resistance provided with a tip body at an extension end of a vertical rod extending from the support arm. In a walking type cultivator which is provided with a cultivator and a cultivating claw of a rotary claw shaft cylinder, a cultivation depth setting tool and a resistance imparting tool at the same time, and grounding work, the support arm is set to a forwardly inclined posture. A tail wheel is suspended through the vicinity of the rear side of the rotation trajectory of the tilling nail, and a tail wheel is supported at the lower end of the tilling. Most of the front edge of the vertical rod extending obliquely downward and forward from the support arm by extending the vertical rod of the resistance imparting device diagonally downward , Characterized in that the tip of the plow acrosome was to perform ground work in readiness located enters the tip rotating the locus of said cultivating claws.
[0012]
Further, a walking-type cultivator according to claim 10 is the walking-type cultivator having the configuration according to any one of claims 7 to 9, wherein the tilling depth setting tool is provided obliquely downward and forward from the support arm of the tillage depth setting tool. The walking angle tilling according to claim 11 is characterized in that the extending angle of the vertical rod of the extending resistance imparting tool can be changed, and the walking-type tilling according to the eleventh aspect crosses the support arm of the tilling depth setting tool. The vertical rod of the resistance imparting tool is inserted into the fixed sheath-shaped support, and the vertical rod is moved up and down along the sheath-shaped support, so that the mounting angle of the vertical rod with respect to the support arm is kept constant. , So that the resistance imparting tool can be independently raised and lowered.
[0013]
Further, in a walking type cultivator according to a twelfth aspect, a rotary tilling device provided with a tilling claw on a rotary claw shaft cylinder supported by a center drive case is connected to a self-propelled vehicle body. A tillage cultivator, a tillage depth setting tool in which a tail ring is supported by a support arm hanging down from the machine frame, and a resistance provided with a tip body at an extension end of a vertical rod extending from the support arm. In a walking type cultivator that works with a ground by simultaneously attaching a cultivating tool and a cultivating claw of a rotary claw shaft cylinder, a cultivating depth setting tool, and a resistance applying tool to a ground, a locus supported by a center drive case. A partially forward / reverse rotary claw in which a claw shaft barrel rotating in the same direction as a traveling wheel when the self-propelled vehicle body advances and a claw shaft cylinder rotating in the opposite direction are coaxially arranged; The cultivation depth setting tool and the traction resistance imparting tool are arranged back and forth in the rearward direction at the center of the cultivation width of the partly forward / reverse rotary claw shaft cylinder. Characterized in that you have to be positioned in a straight line.
[0014]
According to a thirteenth aspect of the present invention, there is provided a walk-behind cultivator having the configuration according to the twelfth aspect, wherein the rotary claw shaft barrel supported by the center drive case moves forward on the self-propelled body. The claw shaft tube rotating in the same direction as the traveling wheel at the time and the claw shaft tube rotating in the opposite direction are arranged side by side concentrically, so that both or individual rotation directions of both claw shaft tubes can be switched. It is characterized by having been done in this way.
[0015]
A walk-type cultivator according to a fourteenth aspect is the walk-type cultivator having the configuration described in the twelfth aspect, wherein the claw shaft cylinder that rotates in a direction opposite to a traveling wheel when the self-propelled vehicle body advances is centered. A tool for setting the cultivation depth and a tool for providing traction resistance are arranged in a straight line in the front and rear portion of the center drive case within the reverse tilling area by the cultivating claws mounted on the lateral sides of the drive case. It is characterized by being located.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments will be described with reference to the drawings. 1 is an overall side view of a management machine (walking cultivator) according to the present invention, FIG. 2 is an enlarged side view of a rotary cultivator, FIG. 3 is a plan view of the rotary cultivator, and FIG. FIG. 5 is a schematic plan view of an essential part of the tilling assist device, and FIG. 6 is a work mode explanatory view of the tilling assist device as viewed from the front.
[0017]
In FIG. 1, the walking type cultivator is mounted on a traveling mission case (11) supporting a pair of left and right traveling wheels (10) and (10) and a frame extending forward from the traveling mission case (11). And a self-propelled vehicle body (14) composed of the running engine (12) and a steering handle (13) extended from the traveling mission case (11) or a member connected to the traveling mission case (11). The tilling device (15) is integrally or detachably connected.
[0018]
A main transmission mechanism incorporated in the main transmission case (18) interlocks the power between the output shaft (16) of the engine (12) and the input shaft (17) of the traveling transmission case (11) so that the power can be switched on and off. The power is transmitted from the input shaft (17) to the left and right axles (19) and (19) below the traveling mission case (11) via the traveling transmission mechanism in the traveling mission case (11). The left and right traveling wheels (10) are rotated and driven, and the rotary tillage device (10) is driven from the PTO shaft of the traveling transmission case (11) through an output transmission mechanism in the PTO case (20). The traveling pawl (22) of the rotary tilling device (15) is moved by the power transmitted to the passive shaft (21) on the 15) side to move the traveling wheels (10) ( It is driven to rotate in the same direction as 10) (counterclockwise direction in FIG. 1). It has become.
[0019]
The rotary tilling device (15) is connected to a center drive case (24) integrally connected to the traveling transmission case (11) via a connecting member (23). The cylinder (22) is supported horizontally and horizontally, and a plurality of tilling claws (25) are arranged on the outer periphery of the rotary claw shaft cylinder (22) so that the phases thereof are different in the axial direction and the rotating direction. The outer top and left and right sides of the tip rotation locus (25a) of the group of claws (25) are covered with a tillage cover (26) mounted on the center drive case (24). I have.
The tillage cover (26) constituting the machine frame of the rotary tillage device (15) has a first tillage assisting device (27) and a second tillage assisting device (28) which are two types of tillage assisting devices. Are provided.
[0020]
As shown in FIG. 3, the rotary pawl shaft cylinder (22) is connected to a center drive case (24) located on the vehicle center line (YY) of the self-propelled vehicle body (14). It is constituted by left and right claw shaft cylinders which are symmetrically supported, and their axis (XX) is orthogonal to the vehicle body center line (YY).
[0021]
In the illustrated embodiment, the cultivator cover (26) is located at a position appropriately separated from the uppermost end of the tip rotation locus (25a) of the tilling claw (25) group by the vehicle body center line (YY). (29) and left and right top plates (31) which are attached to the left and right edges of the bone member (29) via hinges (30) (30) so as to be vertically rotatable, respectively. ) (31) and left and right side plates (32) and (32) connected to the outer edges of the left and right top plates (31) and (31) so as to be openable and closable. At the front ends of the left and right top plate portions (31), (31), there are provided soil splashing stop plates (33) that hang down through portions that are appropriately separated from the foremost end of the tip rotation locus (25a) of the tilling nail group. In addition, the rear ends of the left and right top plates (31) and (31) prevent rearward scatter of cultivated soil. Rubber sag (34) is vertically that.
[0022]
In the case of normal ground work, the left and right top plates (31) and (31) are substantially controlled by an opening adjustment support mechanism (35) formed over the upper surfaces of both top plates. While maintaining the horizontal posture, the left and right side plate portions (32) and (32) are held in a posture that hangs substantially vertically from the ends of the left and right top plate portions (31) and (31). When the work is earthing or embankment work, by operating the opening adjustment support mechanism (35), the left and right top plates (31) and (31) are lifted up around the hinges (30) and (30). The left and right side plates (32) and (32) are also rotated up and down as needed to change and maintain the attitude with respect to the left and right top plates (31) and (31). And work on it.
[0023]
Next, the first tillage assisting device (27) and the second tillage assisting device (28) provided in the rotary tillage device (15) will be described with reference to the drawings. The illustrated first tillage assisting device (27) is configured as a tillage depth setting device in which a tail wheel (27B) is idlely supported at a lower end of a support arm (27A) made of a rod having a rectangular cross section, The second tillage assisting device (28) is provided with a resistance provided with a tip body (28b) at an extending end of a vertical rod (28a) made of a rod having a rectangular cross section extending from the support arm (27A). It is composed of components.
[0024]
The support arm (27A) of the tillage depth setting tool (first tillage assisting device 27) is fixed in a forwardly inclined position to a portion near the rear end of the bone member (29) of the tillage cover (26). The fixing members (37) and (38) are slidably inserted from below into the sheath-shaped mounting portion (36) provided on the rear surface portion of the sheath-shaped mounting portion (36) and the left or right lateral side surface portion. ) Can be fixedly maintained at an arbitrary elevation adjustment position.
[0025]
A supporting arm (27A) moves the tip rotation locus (25a) of the tilling claw (25) group near the rear side in a forwardly inclined posture along the forwardly inclined angle of the sheath mounting portion (36). The tail wheel (27B) supported by the lower end portion of the tilling is grounded at the outer rear position of the tip rotation locus (25a) of the tilling nail (25) group, and the tilling nail (25) The tillage depth of each group is set.
[0026]
On the other hand, on the lateral side of the middle part of the middle of the suspension of the support arm (27A) located at the outer rear position of the tip rotation locus (25a) of the tilling nail (25) group, the support arm (27A) And a sheath-like support (39) is provided in a rearwardly inclined posture to intersect, and a vertical rod (28a) of a resistance imparting tool (second tilling assisting device 28) is slidable on the sheath-like support (39). And can be fixed and maintained at an appropriate sliding movement position by a fixing tool (40) such as a push bolt provided on a lateral side surface of the sheath-shaped support (39).
[0027]
The vertical rod (28a) of the resistance imparting tool extends obliquely downward and forward through a portion immediately before the tail wheel (27B) of the tillage depth setting tool (in front of the tail wheel and within the width of the tail wheel). At that time, in the side view (see FIG. 2), most of the front edge of the vertical rod (28 a) of the resistance imparting tool and the tip of the tip body (28 b) form the tip rotation locus of the tilling claw (25). 25a), and the entire tip body (28b) is located at the same height as or above the lowest ground point of the tail wheel (27B). Further, the tip body (28b) and the tail wheel (27B) are located behind the center drive case (24) in a plan view (see FIG. 3), and are straight forward and backward on the vehicle body center line (YY). Located in the shape.
[0028]
In addition, the vertical rod (28a) of the resistance imparting tool is provided with appropriate means such as changing the mounting angle of the sheath-like support (39) provided on the support arm (27A) of the tillage depth setting tool. By taking the above into account, if the extension angle extending obliquely downward and forward from the support arm (27A) can be changed and adjusted, the traction resistance can be appropriately adjusted by the adjustment operation.
[0029]
When the ground work is performed by the walk-type cultivator having such a configuration, the fixtures (37) and (38) provided on the sheath-shaped mounting portion (36) are once loosened, and the rotary claw shaft cylinder (22) is loosened. If the tail wheel (27B) of the tilling depth setting tool (27) is adjusted up and down so that the working depth with the tilling claw (25) to the ground becomes a desired depth, and the fixing tools (37) and (38) are re-fixed, the resistance is reduced. The applicator (28) is also moved up and down while maintaining the relative attitude and relative height position with respect to the tillage depth setting tool (27) as predetermined, and the tip body (28b) of the resistance applicator (28) is At the same height as or above the lowest contact point of the tail wheel (27B) maintained at a height position for setting the working depth to the ground by the tilling claw (25) of the rotary claw barrel (22). Position is maintained.
[0030]
If the self-propelled vehicle body (14) is made to travel forward while rotating and driving the rotary claw shaft cylinder (22), a group of tilling claws (25) mounted on the rotary claw shaft cylinder (22) is formed. The soil is plowed by rotating in the same direction as the traveling wheels (10) and (10) of the self-propelled body (14) traveling forward, but at that time, the lower part of the center drive case (24) is used. The remaining tillage area of the tillage claw (25) is not affected by the plowing action, and the vertical rod (28a) and the tip body (28b) of the resistance imparting tool (28) advance in the soil of the remaining tillage part. Then, the tail wheel (27B) of the tillage depth setting tool (27) rolls on the ground and rolls forward.
[0031]
Therefore, the resistance imparting tool (28) which advances in the hard residual tillage portion effectively cancels the car body dashing caused by driving the tilling nail (25) mounted on the rotary nail shaft cylinder (22) into the soil, At the same time, the remaining tillage portion is cut by the resistance imparting tool (28), and the tail wheel (27B) of the tillage depth setting tool (27) rolls on the processed trace portion to stabilize the tillage depth. Ground work is performed.
[0032]
Further, the vertical rod (28a) of the resistance imparting tool (28) is extended from the support arm (27A) in the forwardly inclined posture to a forward diagonally downward posture (backwardly inclined posture), so that the vertical rod (28a) becomes large. The leading edge of the portion and the point of the tip body (28b) are positioned inside the tip rotation locus (25a) of the tilling claw (25), and the entire tip body (28b) is the tail wheel (27B). ) Is located at the same height or higher than the lowest contact point, so that the load due to the involvement of the hard residual tillage can be firmly received and the tip body (28b) is excessively in the soil. The weeds and soils which do not penetrate into the vertical rods (28a) and the like of the resistance imparting tool are scraped off by the tilling nails (25), and the vertical rods (28a) of the resistance imparting tool and the cultivation depth are removed. It is less likely to accumulate between the setting arm and the support arm (27A), These is the ground work while being achieved suitably is prevented and Zanko processing body Dasshingu I phase 俟 is performed better.
[0033]
Further, when the vehicle is running on the road after the ground work is completed, the tilling depth setting tool (27) is adjusted so that the lowermost end of the tip rotation locus (25a) of the tilling claw (25) group is appropriately separated upward from the ground. The tail wheel (27B) can be lowered and adjusted, and the vertical rod (28a) of the resistance imparting device (27) can be pulled up to increase the height of the lower end of the tip body (28b) from the ground, so that the vehicle can safely travel on the road. Therefore, when traveling on the road, it is possible to easily convert to the road running posture without the need for a troublesome operation such as removing the resistance imparting device (27) or the tillage setting device (27) and replacing a separately prepared traveling device. It is.
[0034]
When the tip body (28b) of the resistance imparting tool (28) is set to be maintained above the lowest contact point of the tillage depth setting tool (27), as described above. In this case, even if the tail wheel (27B) of the tillage depth setting tool (27) is lowered and adjusted, the tip body (28b) of the resistance imparting tool (27) is still maintained at a position separated from the ground upward. In this case, the vehicle is ready to run on the road even if the action of pulling up the vertical rod (28a) of the resistance applying tool (27) is omitted.
[0035]
Next, in the illustrated embodiment, the rotary claw shaft cylinder (22) and the tilling claw (25) mounted thereon are in the same direction as the traveling wheels (10) and (10) when the self-propelled body (14) moves forward. However, in some cases, the rotary claw shaft cylinder (22) and the tilling claw (25) mounted on the rotary claw shaft cylinder are rotated from the PTO shaft of the traveling transmission case (11). By switching a forward / reverse rotation mechanism incorporated in a power transmission path for transmitting power to the claw shaft cylinder (22), the self-propelled body can be rotated in a direction opposite to the traveling wheels (10) when the vehicle is moving forward. Is also good.
[0036]
In this embodiment, the rotary claw shaft cylinder (22) and the tilling claw (25) mounted thereon are rotated in the direction opposite to the traveling wheels (10) and (10) when the self-propelled body advances. When performing ground work, the resistance imparting tool (28) connected to the tillage depth setting tool (27) complements the body dashing inhibiting action of the tilling claw (25), and the center drive case (24). It plays the role of plowing the remaining tillage generated below the cultivation part. In some cases, even if the work is performed in a state where the resistance imparting tool (28) is removed and the tillage depth setting tool (27) is used alone, Dashing of the vehicle body is suppressed by the tilling claw (25) rotating in the opposite direction to the traveling wheels (10) when the self-propelled vehicle body advances.
[0037]
In the illustrated embodiment, or in a configuration in which the rotary claw shaft cylinder of the illustrated embodiment can be rotated forward and backward as required, the rotary claw shaft cylinder (22) and the rotary claw shaft cylinder are mounted thereon. Although all the tilling claws (25) rotate uniformly in the same direction, this may be configured as a partially forward / reverse rotary claw shaft cylinder as shown in FIG.
[0038]
That is, as shown in FIG. 7, a pair of left and right outer rotary shafts (50) and (50) and the outer rotary shafts (50) and (50) are relatively rotated below the center drive case (24). An inner rotary shaft (51), which penetrates freely and extends left and right, is bearing-supported in the form of an inner / outer double shaft, and these outer rotary shafts (50), (50) and the inner rotary shaft are supported. And (51) are configured to be rotationally driven in opposite directions by two systems of transmission mechanisms (52), (52), and (53) for transmitting rotational power in opposite directions, so that the outer rotary shaft ( 50) The claw shaft tube (22a) attached to (50) and the tillage claw (25b) mounted thereon, and the claw shaft tube (22b) mounted on the inner rotary shaft (51) and mounted on it. The tilling claw (25c) may be configured to rotate oppositely.
[0039]
Further, as shown in FIG. 7, when the rotary claw shaft cylinder (22) is a partially forward / reverse rotating rotary claw shaft cylinder, the rotation direction of the two-system transmission mechanisms (52), (52), (53). May be switched so that the rotation direction of the double-claw shaft cylinders (22a) (22b) can be changed as required. In some cases, the two transmission mechanisms (52) (52) may be used. ) Or (53) so that either one of the rotation directions can be switched, or the outer rotary shaft (50) (50) is in a free rotation state with respect to the inner rotary shaft (51). It is also possible to replace all the claw shaft cylinders to be attached to and attach them to the work so that all the claw shaft cylinders and the tilling claws mounted on them can be rotated in the same direction if necessary. .
[0040]
In any of the above-mentioned embodiments in which the rotary claw shaft cylinder is a partially forward / reverse rotating rotary claw shaft cylinder, the resistance imparting tool (28) connected to the tillage depth setting tool (27) is a reciprocal. The rotation of the tilling claws (25b) and (25c) complements the body dashing suppressing action, and also serves to plow the remaining tillage generated below the center drive case (24), thereby achieving good ground work. It is done.
[0041]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0042]
Two types of tillage assisting devices (tillage setting device 27) and resistance imparting device 28, which are simultaneously grounded together with the tillage claw mounted on the rotary claw shaft cylinder, are provided in the rotary tillage device. Only one first tilling assist device (27) is attached to the machine frame of the rotary tilling device, and the other second tilling assist device (28) is integrally connected to the first tilling assist device (27). The structure of the rotary tilling apparatus can be prevented from becoming complicated and costly, and one of the first tillage assisting devices (27) can be attached to the rotary tilling apparatus frame. By adjusting the vertical movement, the vertical movement of the other second tillage assisting device (28) can be adjusted, and the adjustment operation can be performed more conveniently.
[0043]
And it is necessary to provide the second tillage assisting device (28) integrally connected to the first tillage assisting device (27) so that it can be independently raised and lowered with respect to the first tillage assisting device (27). It is also possible to work by changing the relative height position according to the conditions, and also to provide the second tilling assist device (28) detachably with respect to the first tilling assist device (27), so that the working conditions such as the field conditions are different. It is also possible to remove the second tillage assisting device (28) to perform the operation.
[0044]
The first tillage assisting device (27) is a tillage depth setting device in which a tail wheel (27B) is supported on a support arm (27A) hanging down from a machine frame of a rotary tillage device, and the other second tillage is provided. In the case where the auxiliary device (28) is a resistance applying device provided with a tip body (28b) at the extension end of a vertical rod (28a) extending from the supporting arm (27A), The center drive case (24) is positioned by the front body (28b) and the tail wheel (27B) of the tillage depth setting tool being located in the front and rear straight line behind the center drive case (24). The resistance imparting device (28) advances through the soil of the lower hard residual tillage portion, cuts the residual tillage portion while effectively suppressing car body dashing, and removes the processing trace portion from the tail wheel of the tillage depth setting device. (27B) rolls and ground work with stable tillage depth is performed.
[0045]
Also, at this time, the vertical rod (28a) of the resistance imparting tool (28) is extended forward and obliquely downward from the support arm (27A) in the forwardly inclined posture, so that it is in front of most of the vertical rod (28a). The edge and the tip of the tip body (28b) are located inside the tip rotation locus (25a) of the tilling claw (25), and the entire tip body (28b) is at the bottom of the tail wheel (27B). By being located at the same height or higher than the ground contact point, the load caused by the involvement of the hard residual tillage portion is firmly received, and the tip body (28b) may also excessively bite into the soil. In addition, the weed soil and the like that adhere to the vertical rod (28a) of the resistance imparting tool and the like are scraped off by the tilling claws (25), and the vertical rod (28a) of the resistance imparting tool and the supporting arm of the resistance imparting tool and the cultivation depth setting tool are removed. (27A) is less likely to accumulate between Stop and Zanko process is ground work while suitably achieved which are better performed.
[0046]
In addition, the entire rotary claw barrel (22) or the claw barrel forming a part of the rotary claw barrel (22) is moved in a direction opposite to the traveling wheels (10) and (10) when the self-propelled vehicle body advances. In the case where the work is performed by rotating, the resistance imparting tool (28) connected to the tillage depth setting tool (27) complements the body dashing suppressing action, and is provided below the center drive case (24). The remaining tillage is plowed, and in this case also, good ground work with stable tillage depth is performed.
[Brief description of the drawings]
FIG. 1 is an overall side view of a management device according to the present invention.
FIG. 2 is an enlarged side view of a rotary plow.
FIG. 3 is a plan view of a rotary plow.
FIG. 4 is a rear view showing a tillage assisting tool extracted and enlarged.
FIG. 5 is a schematic plan view of a main part of the tilling assist device.
FIG. 6 is an explanatory view of a work mode in which the tillage assisting device is viewed from the front.
FIG. 7 is a sectional view of a main part showing a modified example of a rotary claw shaft cylinder.
[Explanation of symbols]
10 running wheels
14 Self-propelled body
15 Rotary tillage equipment
22 Rotary claw shaft cylinder
22a Claw shaft cylinder
22b Claw shaft cylinder
24 Center drive case
25 tillage claw
25a Rotation trajectory of tillage nail
25b tillage claw
25c tillage claw
27 Tillage setting tool (first tillage aid)
27A Support arm
27B tail wheel
28 Resistance imparting tool (second tilling aid)
28a vertical rod
28b tongue
39 sheathed support

Claims

A self-propelled vehicle body (14) is provided with a rotary tilling device (15) for cultivating soil by a tilling claw (25) mounted on a rotary claw shaft cylinder (22) supported by a center drive case (24). The rotary tilling device (15) is provided with two types of tilling assisting devices (27) and (28), and the rotary tilling claw (22) is mounted on the rotary claw shaft cylinder (22). In a walk-type cultivator for simultaneously performing ground work with two types of tilling assist devices (27) and (28) grounded, one of the two types of tilling assist devices (27) and (28) is a first tilling assist device (27). Is mounted on the machine frame of the rotary tilling device (15), and the other second tilling assist device (28) is integrally connected to the first tilling assist device (27). Type tiller.

A self-propelled vehicle body (14) is provided with a rotary tilling device (15) for cultivating soil by a tilling claw (25) mounted on a rotary claw shaft cylinder (22) supported by a center drive case (24). The rotary tilling device (15) is provided with two types of tilling assisting devices (27) and (28), and the rotary tilling claw (22) is mounted on the rotary claw shaft cylinder (22). In a walking type cultivator that simultaneously performs grounding work with two types of tillage assisting devices (27) and (28), the first tillage assisting device (27) of the two types of tillage assisting devices (27) and (28) is used. The second tillage assisting device (28) is integrally connected to the first tillage assisting device (27) on the machine frame of the rotary tillage device (15) so as to be adjustable up and down. The second tillage assist device (28) is also adjusted up and down by the up and down adjustment of 27). Walk-behind cultivating machine, characterized in that.

A second tilling assist device (28) integrally connected to a first tilling assist device (27) attached to a machine frame of a rotary tilling device (15) is provided with respect to the first tilling assist device (27). The walk-behind cultivator according to claim 1, wherein the cultivator is provided so as to be able to be independently raised and lowered.

A second tilling assist device (28) integrally connected to a first tilling assist device (27) attached to a machine frame of a rotary tilling device (15) is provided with respect to the first tilling assist device (27). The walk-behind cultivator according to claim 1, wherein the cultivator is provided so as to be mounted in a variable mounting posture.

The second tilling assist device (28) integrally connected to the first tilling assist device (27) attached to the machine frame of the rotary tilling device (15) is moved relative to the first tilling assist device (27). The walk-behind cultivator according to claim 1, wherein the cultivator is detachably provided.

One of the two types of tillage assist devices (27) and (28) provided in the rotary tillage device (15) is suspended from the machine frame of the rotary tillage device (15). The cultivating depth setting device is configured such that the tail wheel (27B) is supported by the supporting arm (27A), and the other second tilling assisting device (28) extends from the supporting arm (27A). The walk-behind cultivator according to any one of claims 1 to 5, wherein the resistance cultivator is provided with a tip body (28b) at an extending end of the rod (28a).

A self-propelled vehicle body (14) is provided with a rotary tilling device (15) for cultivating soil by a tilling claw (25) mounted on a rotary claw shaft cylinder (22) supported by a center drive case (24). A cultivation depth setting tool (27) having a rotary arm tilling device (15) connected thereto and a tail wheel (27B) supported by a supporting arm (27A) hanging from a machine frame of the rotary tilling device (15); A rotatable claw shaft cylinder (22) is provided with a resistance imparting tool (28) provided with a tip body (28b) at the extension end of a vertical rod (28a) extending from the arm (27A). The arm for supporting the tillage setting tool (27) in a walking type tiller that works on the ground by simultaneously contacting the tillage claw (25), the tillage setting tool (27) and the resistance imparting tool (28), which is mounted on the ground. (27A) in a forward tilted posture, and droop through the vicinity of the rear side of the tip rotation locus (25a) of the tilling nail (25). A tail wheel (27B) is idlely supported at a lower end of the tail wheel, and a resistance imparting tool is provided obliquely downward and forward from a middle part of the suspension of the supporting arm (27A) through a portion immediately before the tail wheel (27B). The vertical rod (28a) of (28) is extended so that the tip body (28b) of the resistance imparting tool (28) and the tail wheel (27B) of the tillage depth setting tool (27) are positioned in a straight line in the front-rear direction. A walk-behind cultivator characterized in that:

A self-propelled vehicle body (14) is provided with a rotary tilling device (15) for cultivating soil by a tilling claw (25) mounted on a rotary claw shaft cylinder (22) supported by a center drive case (24). A cultivation depth setting tool (27) having a rotary arm tilling device (15) connected thereto and a tail wheel (27B) supported by a supporting arm (27A) hanging from a machine frame of the rotary tilling device (15); A rotatable claw shaft cylinder (22) is provided with a resistance imparting tool (28) provided with a tip body (28b) at the extension end of a vertical rod (28a) extending from the arm (27A). The arm for supporting the tillage setting tool (27) in a walking type tiller that works on the ground by simultaneously contacting the tillage claw (25), the tillage setting tool (27) and the resistance imparting tool (28), which is mounted on the ground. (27A) is attached to the machine frame of the rotary tillage device (15) so as to be vertically movable and tilted forward, and the tillage claw (25) is The tail wheel (27a) is suspended from the rear end portion of the end rotation locus (25a) to idlely support the tail wheel (27B) at the lower end thereof, and the tail wheel is extended from the middle part of the suspension of the support arm (27A). A vertical rod (28a) of the resistance imparting tool (28) extends obliquely downward and forward through a portion immediately before (27B), and a tip body (28b) of the resistance imparting tool (28) and a cultivation depth setting tool The tail wheel (27B) of (27) is positioned in a straight line in the front-rear direction, and the tip body (28b) of the resistance imparting tool (28) is at the same height as the lowest ground point of the tail wheel (27B) or A walk-behind cultivator characterized in that it is located above the ground for work on the ground.

A self-propelled vehicle body (14) is provided with a rotary tilling device (15) for cultivating soil by a tilling claw (25) mounted on a rotary claw shaft cylinder (22) supported by a center drive case (24). A cultivation depth setting tool (27) having a rotary arm tilling device (15) connected thereto and a tail wheel (27B) supported by a supporting arm (27A) hanging from a machine frame of the rotary tilling device (15); A rotatable claw shaft cylinder (22) is provided with a resistance imparting tool (28) provided with a tip body (28b) at the extension end of a vertical rod (28a) extending from the arm (27A). In a walking type cultivator for ground work with the tilling claw (25), the cultivation depth setting tool (27) and the resistance imparting tool (28) worn simultaneously on the ground, the support arm (27A) is inclined forward. Through the vicinity of the rear side of the tip rotation locus (25a) of the tilling claw (25). B), and supports the vertical arm (28a) of the resistance imparting device (28) obliquely downward from the middle part of the support arm (27A) to the front part of the tail wheel (27B). ), The front edge of most of the vertical rod (28a) extending obliquely downward and forward from the support arm (27A), and the pointed end of the tip body (28b) form the tilling claw (28). 25. A walking-type cultivator characterized in that the ground cultivator is adapted to enter into the tip rotation locus (25a) of (25) and perform the ground work in a position where it is positioned.

The extension angle of the vertical rod (28a) of the resistance imparting tool (28) extending obliquely downward and forward from the support arm (27A) of the tillage depth setting tool (27) can be changed. The walk-behind cultivator according to any one of claims 7 to 9.

The vertical rod (28a) of the resistance imparting tool (28) is inserted through a sheath-like support (39) fixed in a crossing manner to the support arm (27A) of the tillage depth setting tool (27). 28a) is moved up and down along the sheath-shaped support member (39) so that the resistance imparting tool (28) can be used alone while the mounting angle of the vertical rod (28a) to the support arm (27A) is kept constant. The walking type cultivator according to any one of claims 7 to 9, wherein the cultivator can be adjusted up and down.

A self-propelled vehicle body (14) is provided with a rotary tilling device (15) for cultivating soil by a tilling claw (25) mounted on a rotary claw shaft cylinder (22) supported by a center drive case (24). A cultivation depth setting tool (27) having a rotary arm tilling device (15) connected thereto and a tail wheel (27B) supported by a supporting arm (27A) hanging from a machine frame of the rotary tilling device (15); A rotatable claw shaft cylinder (22) is provided with a resistance imparting tool (28) provided with a tip body (28b) at the extension end of a vertical rod (28a) extending from the arm (27A). The tiller (25), the tillage setting device (27), and the resistance imparting device (28), which are mounted on the ground, are grounded at the same time, and are supported by the center drive case (24). A claw shaft that rotates the rotary claw shaft cylinder (22) in the same direction as the traveling wheel (10) when the self-propelled body (14) advances. (22a) and a claw shaft cylinder (22b) rotating in the opposite direction are configured as a partially forward / reverse rotary claw shaft cylinder arranged in a concentric manner, and the partially forward / reverse rotary claw shaft cylinder is formed. A walking type cultivator, wherein the cultivation depth setting tool (27) and the traction resistance imparting tool (28) are positioned in a front-rear straight line in the rearward direction of the center of the cultivation width.

A rotary claw shaft tube (22) supported by a center drive case (22) has a claw shaft tube (22a) that rotates in the same direction as the traveling wheel (10) when the self-propelled vehicle body (14) moves forward. A claw shaft cylinder (22b) rotating in the opposite direction is arranged concentrically side by side, so that both or both rotation directions of both claw shaft cylinders (22a) and (22b) can be switched. Item 13. A walking tiller according to item 12.

A rotary claw shaft tube (22) supported by a center drive case (24) has a claw shaft tube (22a) which rotates in the same direction as the traveling wheel (10) when the self-propelled body (14) advances. A claw shaft cylinder (22b) that rotates in the opposite direction is configured as a partially forward / reverse rotary claw shaft cylinder that is coaxially arranged, and the self-propelled body (14) has a traveling wheel (10) and a traveling wheel (10). Is provided with a claw shaft cylinder (22b) rotating in the opposite direction on the side of the center drive case (24), and the center drive case is mounted in the reverse tilling area by the tilling claw (25b) mounted thereon. The walk-behind cultivator according to claim 12, wherein the cultivation depth setting tool (27) and the traction resistance imparting tool (28) are located in a straight line in the front-rear direction at the rear extension part of the sword (24).