JP4314748B2

JP4314748B2 - Passenger control machine

Info

Publication number: JP4314748B2
Application number: JP2001054728A
Authority: JP
Inventors: 津清明水; 岩二三男黒; 島徳弘上; 甲幸司上; 野典弘矢; 谷隆徳泉
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2001-02-28
Filing date: 2001-02-28
Publication date: 2009-08-19
Anticipated expiration: 2021-02-28
Also published as: JP2002253104A

Description

【０００１】
【発明の属する技術分野】
この発明は、乗用防除機の操作装置に関し、トラクタ車体に防除タンクを着脱自在として、防除ポンプの駆動によって薬剤を散布ブームへ圧送しながら噴霧散布させる形態の乗用防除機に利用できる。
【０００２】
【従来の技術】
トラクタ車体の運転席の周りに凹状形態の薬剤タンクを搭載すると共に、この防除タンクの上側部、又は前方のステアリングポストの横側等に操作ケースを設ける技術は知られている。
【０００３】
【発明が解決しようとする課題】
このような防除作業操作用の操作ケースが防除タンク上やダッシュボード部の外部に装着される形態では、構成や外観が煩雑であり、防除タンクを車体から着脱する作業操作も行い難い。
また、従来は散布制御操作が簡単にできなかった。そして、単位面積当たりに所定量の薬液を散布するノズルの種類を選択した後において、ノズルの種類の選択データは散布制御のデータとなる構成ではなかったので、作業者の意図しない濃度となって散布されてしまう問題があった。
【０００４】
【課題を解決するための手段】
請求項１に記載の発明は、運転席（１）の左右両側から後側に渡るフロア（３７）に防除タンク（２）の底面を載置し、運転席（１）の横側から後側に渡って凹状形態に形成の防除タンク（２）を着脱自在に搭載し、該防除タンク（２）は水と薬剤とを各別に収容させた状態として両者を混合しながら運転席（１）の下方に取付けた防除ポンプ（４）で汲出し、防除ポンプ（４）の後方下部にフィルター（８）を配設し、前記防除ポンプ（４）を介して車体（５）の端部に取付けたノズルブーム（６）から地面側に散布する乗用防除機において、この防除タンク（２）の側辺部（３）の運転席（１）側に散布条件や散布状態等を表示する表示パネル（７）を設置し、防除タンク（２）の左右側辺部（３）は運転席（１）の左右両側部の前後方向に沿わせて外側を車体（５）の外縁に沿わせる形態とし、車体（５）後側部に位置する防除タンク（２）の前端部側が低く後辺部（２６）側で高くし、前端部では運転席（１）の着座面よりも若干高位に形成し、防除タンク（２）の前記側辺部（３）の運転席（１）側の一部を凹ませた凹入部（１１）とし、該凹入部（１１）に噴霧回路（１２）の液圧を維持するエアチャンバー（１３）と、噴霧流量を調節する可変流量制御弁（１４）と、各散布のノズルブーム（６ａ，６ｂ，６ｃ）へ分岐する上部デリバリパイプ（１５）とを配置する構成とし、防除タンク（２）の前記凹入部（１１）を覆う上部カバー（４８）の前部内方に散布制御用のＣＰＵ（４７）の箱体を取り付け、該ＣＰＵ（４７）の箱体の上面は表示パネル（７）として運転席から見えるように、上部カバー（４８）の上面表示窓部に取り付けられる構成とし、さらに、防除タンク（２）の側辺部（３）の前壁面（８０）に、該側辺部（３）の凹入部（１１）に取り付けるノズルブーム（６）への吐水ホースを複数個の半円弧状取付座（８１）に上下方向に設けて蓋板（８２）で固定するように構成したことを特徴とする乗用防除機の構成とする。
【０００５】
請求項２に記載の発明は、防除ポンプ（４）は、電磁クラッチ（１７）を入り・切り操作することで駆動運転を制御し、該入り・切り操作スイッチを、表示パネル（７）部の自動スイッチ（１８）と運転席（１）近傍に設けたモーメンタリスイッチ（１９）の複数個所の操作とし、表示パネル（７）の表示部（６６）右側の表示切換スイッチ（６７）をＯＮすると、押す毎に表示部（６６）内左側の三角マーク（６８）により「散布設定」・「圧力」・「流量」・「累計」の表示項目から一つを選択して表示し、「圧力」表示中に、表示パネル（７）下方の「増」・「減」スイッチ（７１，７２）を押し操作して表示の圧力値を変更した後、所定時間放置すると変更した表示圧力をＣＰＵ（４７）が目標圧力として取り込み、取り込んだ目標圧力となるように可変流量制御弁（１４）を電動モーター（７３）で開閉制御する構成とし、「散布設定」の表示を選択すると、単位面積当たりに所定量の薬液を散布するノズルの種類を選択可能に構成し、選択データは、表示部（６６）に所定時間放置するとＣＰＵ（４７）に取り込まれて散布制御のデータとなる構成としたことを特徴とする請求項１に記載の乗用防除機の構成とする。
【０００６】
【０００７】
【０００８】
【０００９】
【発明の効果】
請求項１に記載の発明は、防除タンク２が運転席１の左右両側から後側に渡って凹状形態に形成されて搭載されるものであるから、トラクタ車体上のスペースを有効に利用して防除タンク２を搭載することができると共に、この防除タンク２の側辺部３上の運転席１側に設けた表示パネル７の運転者による表示内容確認や、手指に依る表示事項の設定変更操作等が容易に行えるとともに、防除タンク２着脱時にも取り付けたままで良くタンクの着脱操作も簡単に行える。
【００１０】
また、着脱自在とした防除タンク２の後方下部にフィルター８を配設し、車体５の運転席１下方に防除ポンプ４を取付けたので、フィルター８や防除ポンプ４の点検作業が容易である。また、凹入部１１内に上部デリバリパイプ１５やエアチャンバー１３や可変流量制御弁１４等を配置することができ、これらの部品が防除タンク２外への突出を少くして、簡潔な構成とすることができ、操作またはタンク着脱時の邪魔にならないようにすることができる。
【００１１】
請求項２に記載の発明は、請求項１に記載の効果に加え、車体５の端部に取付けたノズルブーム６から地面側に散布する散布制御を複数個所に設けた操作スイッチで操作できると共に、モーメンタリスイッチ１９により、該モーメンタリスイッチ１９が操作されているか、他の自動スイッチ１８が操作されているのか容易に見分けが付き、散布制御が簡単に操作できる。
【００１２】
また、「散布設定」の表示を選択すると、単位面積当たりに所定量の薬液を散布するノズルの種類を選択可能に構成し、選択データは、表示部６６に所定時間放置するとＣＰＵ４７に取り込まれて散布制御のデータとなる構成としているので、作業者の意図しない濃度となって散布されるのを防止できるようになる。
【００１３】
【００１４】
【００１５】
【発明の実施の形態】
この発明は、運転席の側部から後部に渡る凹状形態の防除タンクを着脱自在に搭載し、車体前部に取り付けた防除用ノズルブームの薬剤散布を車速が変わっても設定した散布密度で散布するように制御する乗用形態の防除機の操作装置として利用できる。
【００１６】
以下図面に示す実施例に基づいて防除機の概要を説明する。
この防除機は、乗用管理作業用のトラクタ車体５に、防除タンク２や防除ポンプ４、散布用のノズルブーム６等を搭載して構成する。この車体５は前部のボンネット２０下に搭載のエンジン２１によって駆動される前車輪２２、後車輪２３を有して走行される四輪駆動走行形態としている。これら前後車輪２２，２３を操向するハンドル２４がステアリングポスト２５上に設けられ、この後方に運転席１が設けられている。
【００１７】
前記防除タンク２は、水や薬剤等を収容するもので、これら水と薬剤とを各別に収容させた状態として、両者を混合しながら防除ポンプ４で汲出す構成としたり、事前に防除タンク２内の水量に応じて所定量の薬剤を投入した溶液を汲み出すこともできる。防除タンク２は、平面視で凹形状に形成されて、運転席１の左右両側部から後側部に渡って囲う形態にして車体５の後端部に搭載する。この車体５後側部に位置する防除タンク２の後辺部２６は、広く高く形成して上端に供給口２７を形成する。左右側辺部３は、運転席１の左右両側部の前後方向に沿わせて外側を車体５の外縁に沿わせる形態とし、該後辺部２６側で高くし前端部では運転席１の着座面よりも若干高位に形成している。
【００１８】
この防除タンク２から薬剤を汲出す防除ポンプ４は、運転席１の下側に設けられており、車体５側のエンジン２１に連動駆動される駆動軸２８の駆動力を、Ｖプーリ２９やＶベルト３０や電磁クラッチ１７を介して駆動する。この防除ポンプ４から汲み出される薬液を噴霧回路１２を経て噴霧させる散布用のノズルブーム６が、車体５の前側に装着されたフロントヒッチ３１に取付けられる。このフロントヒッチ３１は、車体５の左右両側において昇降自在に装着される平行リンク形態のリフトアーム３２の前端に取付けられ、ギヤードモータによって伸縮されるリフトシリンダ３４の伸縮によって昇降される。３３は車体５の前部に取付けられる取付ブラケットであり、該取付ブラケット３３にリフトアーム３２後部を取付け支持する。
【００１９】
このようなフロントヒッチ３１の正面に設けたツールバー３５に、散布用ノズルブーム６のセンター散布ブーム６ａが左右水平状に架設され、この左右両側部に左右のサイド散布ブーム６ｂ，６ｃが開閉可能に設けられている。これら各センター散布ブーム６ａ及び左右のサイド散布ブーム６ｂ，６ｃには下向きに噴霧する噴霧ノズル３６が配置される。左右のサイド散布ブーム６ｂ，６ｃは、ツールバー３５の両端部との間に設けた伸縮される開閉シリンダ（図示せず。）により前後回動されて、前側へ回動されたときはセンター散布ブーム６ａの外側端に延長された開状態の薬剤散布姿勢（図６仮想線で示す）となり、後方へ回動されたときは車体５の側部に沿った実線で示す閉状態の格納姿勢となる。
【００２０】
３７は運転席１の左右両側から後側に渡るフロアであって、前記防除タンク２の底面を載置できる。３８は後部支枠であって、車体５の主強度部材である主フレーム６０後端に図４で示すように直接ボルトで装着したり、図５で示すように昇降リンクヒッチ５１を上昇後ロックして、防除タンク２の後部を支持しても良い。３９は押え金具であって、後部支枠３８後端部に取り付けられ防除タンク２を運転席１方向に押圧して取付け固定している。
【００２１】
主に図１，図３で示す噴霧回路１２へは、防除ポンプ４の駆動で防除タンク２内の薬液を第１水路９からフィルタ８、第２水路１０を経て吸入し、高圧薬液路４０を経て下部デリバリパイプ１６内へと圧送している。該高圧薬液路４０には、防除タンク２の底部側へ向かって少量の高圧薬液を戻す撹拌回路を設けており、常時所定量の高圧薬液を戻すことで防除タンク２内の薬剤と水の混合物の濃度のムラを無くしている。下部デリバリパイプ１６は前述したように、防除タンク２の運転席１右側側辺部３の上面内側に設けた凹入部１１の下部底部に、前後方向に配設されている四角柱である。該、下部デリバリパイプ１６には、流入高圧薬液路の上流側からエアチャンバー１３、安全弁４２、可変流量制御弁１４が夫々取り付けられている。
【００２２】
防除タンク２を車体５から取り外す場合は、図１０で示す開閉レバー８５を閉鎖後、第１水路９または第２水路１０を外せば、防除タンク２内の薬液が残っていても取り外す際に足元が濡れない。
エアチャンバー１３は、下部デリバリパイプ１６内での流入高圧薬液の圧力変動を押さえるものであり、安全弁４２は下部デリバリパイプ１６内の圧力を３０ｋｇ／ｃｍ2に保持し、オーバフローした薬液は戻し路４３を介して防除タンク２に戻している。そして、下部デリバリパイプ１６内の先端部に取付けた可変流量制御弁１４は、該下部デリバリパイプ１６からノズルブーム６側に吐出する薬液の噴霧量を制御するものであり、詳細については後述する。
【００２３】
可変流量制御弁１４は、高圧薬液路４０から入った薬液を絞ることで、ノズルブーム６の噴霧ノズル３６から圃場表面に散布する薬液量を少なくし、可変流量制御弁１４の開度を大きくすることで、ノズルブーム６の噴霧ノズル３６から圃場表面に散布する薬液量を増加させる。また、ノズルブーム６は前述したようにセンター散布ブーム６ａ及び左右のサイド散布ブーム６ｂ，６ｃから成り、凹入部１１の上部で左右方向に配設する上部デリバリパイプ１５から三方向に分岐突設しており、夫々の分岐部には開閉コック７０である中央開閉コック７０ａと左右開閉コック７０ｂ，７０ｃを設けて、噴霧を各別に停止可能としている。該上部デリバリパイプ１５と可変流量制御弁１４間は、散布量制御液圧路４４で連結されている。該散布量制御液圧路４４には、液流入上流側から流量センサ４５と圧力センサ４６が取り付けてあり、可変流量制御弁１４で薬液の流量を調節した散布量制御液圧路４４内を流れる薬液の流量と内圧力を検出し、コンピューターの一部である後述するＣＰＵ４７に伝えている。
【００２４】
図１では、噴霧回路１２を配設している防除タンク２の運転席１右側の側辺部３に設けた凹入部１１を覆う上部カバー４８の前部内方に散布制御用のＣＰＵ４７の箱体を取り付けており、該ＣＰＵ４７箱体の上面は表示パネル７となって運転席から見えるように、上部カバー４８の上面表示窓部に取り付けられている。図例では、液晶表示とした表示パネル７とＣＰＵ４７を一体構成としているが、両者を２分割して電線等で接続すればレイアウトの自由度がさらに向上する。
【００２５】
上部カバー４８の上面表示窓部に取り付けられた表示パネル７の前方には、ノズルブーム６を昇降操作する昇降スイッチ４９や開閉操作する開閉スイッチ５０が設けられ、表示パネル７後方には防除ポンプ４を手動で直接入り・切りするモーメンタリスイッチ１９が設けられ、手動押し操作で該モーメンタリスイッチ１９がＯＮされスイッチの頭部が連続点灯し、電磁クラッチ１７がＯＮされ防除ポンプ４が手動操作で駆動する。また、詳細は後述するが、表示パネル７内の自動スイッチ１８である押しボタンを押して自動の散布制御を行うときは、表示パネル７内の自動モードランプ５２が連続点灯すると共に、モーメンタリスイッチ１９は手動操作しなくても点灯する。しかし、この点灯は、自動の散布制御で電磁クラッチ１７がＯＮして防除ポンプ４が駆動中は連続点灯し、自動の散布制御で電磁クラッチ１７がＯＦＦして防除ポンプ４が非駆動中は点滅点灯となって待機中であることを知らせる。
【００２６】
次に、車体５の動力伝動構成と制御系の関連について説明する。車体５の前部に搭載したエンジン２１の駆動力は、クランク軸５３の出力をＶベルトやプーリー等の連動具５４を経て下部軸５５に達し、前部カウンターケース５６内の歯車により伝動を分岐され一方は駆動軸２８に、他方は主クラッチ５７を経て走行用変速ケース５８の入力軸５９に伝達する。該入力軸５９に達した駆動力は、走行用変速ケース５８内の主変速部や副変速部（図示せず。）により走行速度を変更され、前ドライブ軸６１からフロントアクスル６３内のデフ装置（図示せず。）を経て前車輪２２を駆動すると共に、後ドライブ軸６２からリヤアクスル６４内のデフ装置（図示せず。）を経て後車輪２３を同時に駆動する四輪駆動の走行系としている。
【００２７】
そして、該前後ドライブ軸６１，６２の回転数を走行速度として、軸１回転２０パル程度の信号として車速センサ６５で検出し前述したＣＰＵ４７に伝える。該ＣＰＵ４７には、表示パネル７の操作スイッチで設定する設定事項以外に、散布量制御液圧路４４内に設けた流量センサ４５の検出値と圧力センサ４６の検出値を伝えている。
【００２８】
次に、表示パネル７の操作スイッチで設定する、設定事項について説明する。
図１，図２，図６で示しまた前述したように、表示パネル７は運転席１右側方の防除タンク２側辺部３に設けた凹入部１１を覆う上部カバー４８上面に取り付けている。表示パネル７の左右方向中央上方には液晶の表示部６６が設けられており、エンジン２１を始動後にパネル下部左方の自動スイッチ１８をＯＮすると表示部６６に４桁の数字が現われると共に、スイッチ左方のＬＥＤランプである自動モードランプ５２が点灯して、自動散布制御が開始することを運転車に知らせる。次に、該表示部６６右側の表示切換スイッチ６７をＯＮすると、押す毎にローリング表示選択する表示部６６内左側の三角マーク６８が変色して「散布設定」・「圧力」・「流量」・「累計」の表示項目のうち一つを選択表示する。
【００２９】
「圧力」の表示を選択すると、一定車速以上で走行中における自動散布制御中の散布量制御液圧路４４の噴霧液内圧を圧力センサ４６で検出し表示する。また、該圧力表示中に、表示パネル７下方の「増」・「減」スイッチ７１，７２を押し操作して表示の圧力値を変更した後約２秒間放置すると、該変更した表示圧力をＣＰＵ４７が目標圧力として取り込み、取り込んだ目標圧力となるように可変流量制御弁１４を電動モーター７３で開閉制御する構成としている。
【００３０】
「流量」の表示を選択すると、一定車速以上で走行中における自動散布制御中の散布量制御液圧路４４内の噴霧液流量を、流量センサ４５で測定検出しＣＰＵ４７を経て、表示部６６に表示する。
「累計」の表示を選択すると、パネル内下方のリセットスイッチ７４を押した時点以後の、散布量制御液圧路４４を経てノズルブーム６から散布された薬液の累計流量を表示する。リセットスイッチ７４は通常防除タンク２内に薬液を満タン状態時に押して表示を「０」とし、例えば５００リットルタンクで、ある時点での表示が３５０となっていれば、残量１５０リットルというように残量管理的な使い方をするが、圃場での散布開始時に表示を「０」として終了時に散布量の確認をしたり、朝の作業開始時に表示を「０」とし夕方の作業終了時に、本日の薬液使用量は何リットルであったか等、使い方は運転者の意志により種々行うことができる。
【００３１】
自動散布制御を行うにあたっては、実際に取り付けるノズルブーム６の種類と制御に使用する仮想ノズルブームの種類が一致しているかどうかの確認が必要となる。もし、異なっていると散布制御のデータ違いにより作業者の意図しない濃度となって散布される恐れが生じる。そこで、「散布設定」の表示を選択し、例えば１０アール（１反）あたり２５リットル散布のノズルブームを使用する場合には、表示部６６の表示を「２５」となるようにパネル内下方の散布設定スイッチ７５を押して、制御データと取付けノズルブーム６の種類を選択表示し一致させる。他の表示ノズルブームには、「５０」リットル・「７５」リットル・「１００」リットル等が選択できる。選択データは、表示部６６に約２秒程度放置するとＣＰＵ４７に取り込まれて散布制御のデータとなる。
【００３２】
次に、可変流量制御弁１４について説明する。
前述したように、下部デリバリパイプ１６内の先端部に取付けた可変流量制御弁１４は、該下部デリバリパイプ１６からノズルブーム６側に吐出する薬液の噴霧量を制御するものであり、高圧薬液路４０から入った薬液を絞ることでノズルブーム６の噴霧ノズル３６から圃場表面に散布する薬液量を少なくし、可変流量制御弁１４の開度を大きくすることで、ノズルブーム６の噴霧ノズル３６から圃場表面に散布する薬液量を増加させる。
【００３３】
図１で示すように、下部デリバリパイプ１６内前後方向に開口した高圧薬液路４０の後部には上下方向の受孔７６が開口され、該受孔７６内に可変流量制御弁１４の丸軸１４ａが電動モータ７３により上下動自在に取り付けられている。
３，６００ｒｐｍ程度で回転する電動モータ７３は、歯車等の減速装置７７により下部突出のネジ軸７８を４０ｒｐｍ程度に減速回転する。該電動モータ７３は正逆転用のモータとしており、このモータ７３によってネジ軸７８を正、逆回転して、丸軸１４ａを上下に移動させることにより丸軸１４ａ下端外周を略斜めの平面でカットした傾斜平面１４ｂと受孔７６間の間隙が変わり可変流量制御弁１４の開度を変更調節し、散布量制御液圧路４４への流量とネジ軸７８の回転数とを略正比例状に変更可能としている。
【００３４】
７９は開度センサであって、丸軸１４ａの上下位置をアーム７９ａの上下動で検出しＣＰＵ４７に伝える。
前記した上部カバー４８は、後半部を側辺部３の上面と略平行状とし、この前端の表示パネル７から前方が前上りの傾斜に形成されて、運転者が操作し易く、監視し易い形態としている。
【００３５】
図７で示すものは防除タンク２の前方斜視図であって、運転席１側方まで回り込んだ防除タンク２側辺部３の前壁面８０に、複数個の半円弧状取付座８１を上下方向に設け、該側辺部３の凹入部１１に取り付けるノズルブーム６への吐水ホース等を蓋板８２で固定する。
【図面の簡単な説明】
【図１】防除機噴霧回路構成の、要部側面図。
【図２】表示パネルの平面図。
【図３】噴霧回路の、説明用全体回路図。
【図４】乗用管理機の、一部断面した全体側面図。
【図５】乗用管理機の、ブームやタンク取付時の全体側面図。
【図６】その平面図。
【図７】防除タンク、別要部の斜視図。
【図８】図７防除タンクに、カバーを取付時の斜視図。
【図９】防除タンクの背面斜視図である。
【図１０】図９の拡大図。
【符号の説明】
１運転席
２防除タンク
３側辺部
４防除ポンプ
５車体
６ａノズルブーム
６ｂノズルブーム
６ｃノズルブーム
７表示パネル
８フィルター
９第１水路
１０第２水路
１１凹入部
１２噴霧回路
１３エヤチャンバー
１４可変流量制御弁
１５上部デリバリーパイプ
１６下部デリバリーパイプ
１７電磁クラッチ
１８自動スイッチ
１９モーメンタリスイッチ
２６後辺部
３７フロア
４７ＣＰＵ
４８上部カバー
６６表示部
６７表示切換スイッチ
６８三角マーク
７１増スイッチ
７２減スイッチ
７３電動モーター
８０前壁面
８１半円弧状取付座
８２蓋板 [0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation device for a passenger control machine, and can be used for a passenger control machine in which a control tank is detachable from a tractor vehicle body and sprayed while spraying a medicine to a spray boom by driving a control pump.
[0002]
[Prior art]
A technique is known in which a concave drug tank is mounted around the driver's seat of the tractor body, and an operation case is provided on the upper side of the control tank or on the side of the front steering post.
[0003]
[Problems to be solved by the invention]
In the form in which such an operation case for the control operation is mounted on the control tank or outside the dashboard unit, the configuration and the appearance are complicated, and it is difficult to perform the operation for attaching and detaching the control tank from the vehicle body.
Conventionally, the spraying control operation has not been easy. And, after selecting the type of nozzle for spraying a predetermined amount of chemical solution per unit area, the nozzle type selection data is not configured to be data for spray control, so the concentration is not intended by the operator. There was a problem of being scattered.
[0004]
[Means for Solving the Problems]
According to the first aspect of the present invention, the bottom surface of the control tank (2) is placed on the floor (37) extending from the left and right sides of the driver seat (1) to the rear side, and the rear side of the driver seat ( 1 ) is rearward. detachably mounting a control tank concave form (2) over,-proof removal tank (2) is water and the drug and the operation with mixing both as a state of being accommodated in respective different seats (1) Pumped out by a control pump (4) attached below, a filter (8) was arranged at the lower rear of the control pump ( 4 ), and was attached to the end of the vehicle body ( 5 ) via the control pump ( 4 ) In a passenger control machine that sprays from the nozzle boom ( 6 ) to the ground side, a display panel ( 7 ) that displays spraying conditions, spraying conditions, etc. on the driver's seat ( 1 ) side of the side part ( 3 ) of this control tank ( 2 ) ) established the left and right lateral side portion of the control tank (2) (3) the driver's seat (1) The front side of the control tank (2) located on the rear side of the vehicle body (5) is low and the side of the rear side (26) side. The front end is formed slightly higher than the seating surface of the driver's seat (1), and a part of the side portion (3) of the control tank (2) on the driver's seat (1) side is recessed. An air chamber (13) that maintains a hydraulic pressure of the spray circuit (12), a variable flow rate control valve (14) that adjusts the spray flow rate, and a nozzle for each spraying are provided as a recess (11). An upper delivery pipe (15) branched to the booms (6a, 6b, 6c) is arranged, and spraying control is performed on the inside of the front portion of the upper cover (48) covering the recessed portion (11) of the control tank (2). A CPU (47) box is attached, and the upper surface of the CPU (47) box is a display panel ( 7) is configured to be attached to the upper display window portion of the upper cover (48) so that it can be seen from the driver's seat, and further, on the front wall surface (80) of the side portion (3) of the control tank (2), The water discharge hose to the nozzle boom (6) attached to the recessed part (11) of the side part (3) is provided in a plurality of semicircular arc mounting seats (81) in the vertical direction and fixed by the cover plate (82). It is set as the structure of the passenger control machine characterized by having comprised.
[0005]
In the invention according to claim 2, the control pump (4) controls the driving operation by turning on / off the electromagnetic clutch (17), and the on / off operation switch is connected to the display panel (7). When the automatic switch (18) and the momentary switch (19) provided near the driver's seat (1) are operated at a plurality of locations, and the display changeover switch (67) on the right side of the display section (66) of the display panel (7) is turned ON, Each time the button is pressed, one of the display items “Spreading setting”, “Pressure”, “Flow rate”, and “Total” is selected and displayed by the triangle mark (68) on the left side of the display section (66). The display pressure value is changed by pressing the “increase” and “decrease” switches (71, 72) below the display panel (7). Captured as target pressure The variable flow rate control valve (14) is controlled to be opened and closed by an electric motor (73) so as to be a force, and when “spreading setting” is selected, the type of nozzle that sprays a predetermined amount of chemical liquid per unit area is selected. The ride control according to claim 1, characterized in that it is configured to be selectable, and the selection data is taken into the CPU (47) when left on the display unit (66) for a predetermined period of time and becomes the data of the spray control. The machine configuration.
[0006]
[0007]
[0008]
[0009]
【The invention's effect】
According to one aspect of the present invention, because anti-removal tank 2 is intended to be mounted is formed in a concave shape configuration over the rear side from the right and left sides of the driver's seat 1, effectively utilizing the space on the tractor body The control tank 2 can be mounted, the display content of the display panel 7 provided on the driver's seat 1 side on the side 3 of the control tank 2 can be confirmed by the driver, and the display item setting can be changed by fingers The operation can be easily performed, and the tank can be easily attached / detached even when the control tank 2 is attached / detached.
[0010]
Further, it disposed a filter 8 to the rear lower portion of the control tank 2 which is detachable, since the control pump 4 to the driver's seat 1 under the vehicle body 5 mounted digits, is easy inspection of the filter 8 and control the pump 4. Further, the upper delivery pipe 15, the air chamber 13, the variable flow rate control valve 14, and the like can be disposed in the recessed portion 11, and these components reduce the protrusion to the outside of the control tank 2 and have a simple configuration. So that it does not get in the way of operation or tank installation / removal.
[0011]
The invention according to claim 2, in addition to the effects of claim 1, can be operated with an operation switch provided a spraying control for spraying on the ground side from the nozzle boom 6 attached to the end portion of the car body 5 at a plurality of locations At the same time, the momentary switch 19 makes it easy to distinguish whether the momentary switch 19 is being operated or whether another automatic switch 18 is being operated, and spray control can be easily performed.
[0012]
If the display of “spreading setting” is selected, the type of nozzle that sprays a predetermined amount of chemical solution per unit area can be selected, and the selection data is taken into the CPU 47 when left on the display unit 66 for a predetermined time. Since it becomes the structure used as the data of dispersion | distribution control, it becomes possible to prevent now being scattered by the density | concentration which an operator does not intend.
[0013]
[0014]
[0015]
DETAILED DESCRIPTION OF THE INVENTION
This invention is equipped with a control tank with a concave shape extending from the side to the rear of the driver's seat in a detachable manner, and spraying the chemical on the control nozzle boom attached to the front of the vehicle body at a set spray density even if the vehicle speed changes. It can be used as an operating device for a riding-type control machine that controls the vehicle so that it does.
[0016]
The outline of the control machine will be described below based on the embodiments shown in the drawings.
This control machine is configured by mounting a control tank 2, a control pump 4, a spraying nozzle boom 6 and the like on a tractor vehicle body 5 for riding management work. The vehicle body 5 has a four-wheel drive traveling form in which the vehicle 5 travels with a front wheel 22 and a rear wheel 23 driven by an engine 21 mounted under the hood 20 at the front. A handle 24 for steering these front and rear wheels 22 and 23 is provided on a steering post 25, and a driver's seat 1 is provided behind the handle 24.
[0017]
The said control tank 2 accommodates water, a chemical | medical agent, etc., and it is set as the structure which pumps out with the control pump 4 mixing these both in the state which accommodated these water and chemical | medical agents separately, or the control tank 2 in advance. It is also possible to pump out a solution into which a predetermined amount of medicine has been charged according to the amount of water in the inside. The control tank 2 is formed in a concave shape in plan view, and is mounted on the rear end portion of the vehicle body 5 so as to surround from the left and right side portions of the driver's seat 1 to the rear side portion. A rear side portion 26 of the control tank 2 located on the rear side of the vehicle body 5 is formed wide and high, and a supply port 27 is formed at the upper end. The left right side portion 3 is configured such that the outer side is along the outer edge of the vehicle body 5 along the front and rear direction of the left and right sides of the driver's seat 1 and is raised on the rear side portion 26 side, and the driver seat 1 is seated at the front end portion. It is formed slightly higher than the surface.
[0018]
The control pump 4 for pumping out the medicine from the control tank 2 is provided below the driver's seat 1 and uses the driving force of the drive shaft 28 driven in conjunction with the engine 21 on the vehicle body 5 side as the V pulley 29 and V It is driven via the belt 30 and the electromagnetic clutch 17. A spraying nozzle boom 6 for spraying the chemical liquid pumped out from the control pump 4 through the spray circuit 12 is attached to a front hitch 31 mounted on the front side of the vehicle body 5. The front hitch 31 is attached to the front end of a lift arm 32 in the form of a parallel link that is mounted so as to be movable up and down on both the left and right sides of the vehicle body 5, and is raised and lowered by the expansion and contraction of a lift cylinder 34 that is expanded and contracted by a geared motor. A mounting bracket 33 is attached to the front portion of the vehicle body 5, and the rear portion of the lift arm 32 is attached to and supported by the mounting bracket 33.
[0019]
The center spray boom 6a of the spray nozzle boom 6 is horizontally mounted on the tool bar 35 provided in front of the front hitch 31. The left and right side spray booms 6b and 6c can be opened and closed on the left and right sides. Is provided. A spray nozzle 36 for spraying downward is disposed on each of the center spray booms 6a and the left and right side spray booms 6b and 6c. The left and right side spraying booms 6b and 6c are rotated back and forth by an extendable opening / closing cylinder (not shown) provided between both ends of the tool bar 35, and when rotated to the front side, the center spraying booms. 6a is an open medicine spraying posture extended to the outer end of 6a (shown in phantom lines in FIG. 6), and when it is rotated backward, it is in a closed storage posture shown by a solid line along the side of the vehicle body 5. .
[0020]
Reference numeral 37 denotes a floor extending from the left and right sides of the driver's seat 1 to the rear side, on which the bottom surface of the control tank 2 can be placed. Reference numeral 38 denotes a rear support frame, which is directly attached to the rear end of the main frame 60 which is a main strength member of the vehicle body 5 with a bolt as shown in FIG. 4, or the lift link hitch 51 is locked after being lifted as shown in FIG. Then, the rear portion of the control tank 2 may be supported. Reference numeral 39 denotes a presser fitting which is attached to the rear end portion of the rear support frame 38 and presses the control tank 2 toward the driver's seat 1 to fix it.
[0021]
The spray circuit 12 shown mainly in FIGS. 1 and 3 is driven by the control pump 4 to suck the chemical solution in the control tank 2 from the first water passage 9 through the filter 8 and the second water passage 10, Then, it is pumped into the lower delivery pipe 16. The high-pressure chemical liquid path 40 is provided with a stirring circuit for returning a small amount of high-pressure chemical liquid toward the bottom side of the control tank 2, and a mixture of the chemical and water in the control tank 2 by always returning a predetermined amount of high-pressure chemical liquid. This eliminates unevenness in density. As described above, the lower delivery pipe 16 is a quadrangular column disposed in the front-rear direction on the lower bottom portion of the recessed portion 11 provided inside the upper surface of the right side portion 3 of the driver's seat 1 of the control tank 2. The lower delivery pipe 16 is provided with an air chamber 13, a safety valve 42, and a variable flow rate control valve 14 from the upstream side of the inflow high-pressure chemical liquid path.
[0022]
To remove the control tank 2 from the vehicle body 5, after closure of the closing lever 85 shown in FIG. 10, by removing the first water passage 9 or the second water passage 10, the feet when detaching even remain chemical liquid in the control tank 2 Does not get wet.
The air chamber 13 suppresses the pressure fluctuation of the inflowing high-pressure chemical solution in the lower delivery pipe 16, and the safety valve 42 maintains the pressure in the lower delivery pipe 16 at 30 kg / cm 2, and the overflowed chemical solution passes through the return path 43. To the control tank 2. The variable flow rate control valve 14 attached to the tip of the lower delivery pipe 16 controls the spray amount of the chemical liquid discharged from the lower delivery pipe 16 toward the nozzle boom 6 and will be described in detail later.
[0023]
The variable flow rate control valve 14 squeezes the chemical solution that has entered from the high-pressure chemical solution path 40, thereby reducing the amount of chemical solution that is sprayed from the spray nozzle 36 of the nozzle boom 6 onto the field surface and increasing the opening of the variable flow rate control valve 14. Thus, the amount of the chemical solution sprayed from the spray nozzle 36 of the nozzle boom 6 to the field surface is increased. Further, as described above, the nozzle boom 6 includes the center spray boom 6a and the left and right side spray booms 6b and 6c. The nozzle boom 6 branches and projects in three directions from the upper delivery pipe 15 disposed in the left-right direction above the recessed portion 11. A central opening / closing cock 70a, which is an opening / closing cock 70, and left / right opening / closing cocks 70b, 70c are provided at the respective branch portions so that spraying can be stopped individually. The upper delivery pipe 15 and the variable flow control valve 14 are connected by a spray amount control hydraulic pressure path 44. A flow rate sensor 45 and a pressure sensor 46 are attached to the spray amount control hydraulic pressure path 44 from the upstream side of the liquid inflow, and flow in the spray amount control hydraulic pressure path 44 in which the flow rate of the chemical solution is adjusted by the variable flow rate control valve 14. The flow rate and internal pressure of the chemical solution are detected and transmitted to a CPU 47 (described later) that is a part of the computer.
[0024]
In FIG. 1, a box body of a CPU 47 for controlling spraying inside the front cover 48 covering the recessed portion 11 provided on the side portion 3 on the right side of the driver's seat 1 of the control tank 2 in which the spray circuit 12 is disposed. The upper surface of the CPU 47 box is attached to the upper display window portion of the upper cover 48 so that it can be seen from the driver's seat as the display panel 7. In the example shown in the figure, the display panel 7 having a liquid crystal display and the CPU 47 are integrally configured. However, if the two are divided into two and connected by an electric wire or the like, the degree of freedom in layout is further improved.
[0025]
In front of the display panel 7 attached to the upper display window portion of the upper cover 48, an up / down switch 49 for raising / lowering the nozzle boom 6 and an open / close switch 50 for opening / closing the nozzle boom 6 are provided. A momentary switch 19 is provided for manually turning on and off manually, the momentary switch 19 is turned on by manual push operation, the head of the switch is continuously lit, the electromagnetic clutch 17 is turned on, and the control pump 4 is driven manually. . Although details will be described later, when automatic spraying control is performed by pressing a push button which is an automatic switch 18 in the display panel 7, the automatic mode lamp 52 in the display panel 7 is continuously lit and the momentary switch 19 is Lights up without manual operation. However, this lighting is continuously lit while the electromagnetic clutch 17 is turned on by automatic spraying control and the control pump 4 is driven, and flashes when the electromagnetic clutch 17 is turned off by automatic spraying control and the control pump 4 is not driven. Lights up to inform you that you are waiting.
[0026]
Next, the relationship between the power transmission configuration of the vehicle body 5 and the control system will be described. The driving force of the engine 21 mounted on the front part of the vehicle body 5 reaches the lower shaft 55 through the interlocking tool 54 such as a V-belt or pulley, and the transmission is branched by the gear in the front counter case 56. One is transmitted to the drive shaft 28, and the other is transmitted to the input shaft 59 of the traveling transmission case 58 via the main clutch 57. The driving force that has reached the input shaft 59 is changed in traveling speed by a main transmission unit and a sub-transmission unit (not shown) in the traveling transmission case 58, and the differential device in the front axle 63 from the front drive shaft 61. (Not shown), the front wheel 22 is driven, and a four-wheel drive traveling system is configured to simultaneously drive the rear wheel 23 from the rear drive shaft 62 via a differential device (not shown) in the rear axle 64. .
[0027]
Then, the rotational speed of the front and rear drive shafts 61 and 62 is detected as a traveling speed by the vehicle speed sensor 65 as a signal of about 20 pals per rotation of the shaft and transmitted to the CPU 47 described above. In addition to the setting items set by the operation switch of the display panel 7, the CPU 47 is notified of the detection value of the flow sensor 45 and the detection value of the pressure sensor 46 provided in the spray amount control hydraulic pressure path 44.
[0028]
Next, setting items set with the operation switch of the display panel 7 will be described.
As shown in FIGS. 1, 2, and 6 and as described above, the display panel 7 is attached to the upper surface of the upper cover 48 that covers the recessed portion 11 provided on the side 3 on the right side of the driver's seat 1. A liquid crystal display section 66 is provided at the upper center of the display panel 7 in the left-right direction. When the automatic switch 18 at the lower left of the panel is turned on after the engine 21 is started, a 4-digit number appears on the display section 66 and the switch The automatic mode lamp 52, which is the LED lamp on the left side, lights up to inform the driver that automatic spraying control will start. Next, when the display changeover switch 67 on the right side of the display unit 66 is turned ON, the triangle mark 68 on the left side in the display unit 66 that selects the rolling display changes color each time it is pressed, and “dispersion setting”, “pressure”, “flow rate”, Select and display one of the “cumulative” display items.
[0029]
When the display of “pressure” is selected, the pressure sensor 46 detects and displays the spray liquid internal pressure in the spray amount control hydraulic pressure path 44 during automatic spray control during traveling at a constant vehicle speed or higher. Further, during the pressure display, if the display pressure value is changed by pressing the “increase” and “decrease” switches 71 and 72 below the display panel 7 and left for about 2 seconds, the changed display pressure is stored in the CPU 47. Is set as a target pressure, and the variable flow rate control valve 14 is controlled to be opened and closed by the electric motor 73 so as to become the acquired target pressure.
[0030]
When the display of “flow rate” is selected, the spray liquid flow rate in the spray amount control hydraulic pressure path 44 during automatic spray control during traveling at a constant vehicle speed or higher is measured and detected by the flow rate sensor 45, and the display unit 66 passes through the CPU 47. indicate.
When the display of “cumulative” is selected, the cumulative flow rate of the chemical sprayed from the nozzle boom 6 through the spraying amount control hydraulic pressure path 44 after the time when the reset switch 74 below the panel is pressed is displayed. The reset switch 74 is normally pressed when the chemical tank is full in the control tank 2 to display “0”. For example, if the display is 350 at a certain time in a 500 liter tank, the remaining amount is 150 liters. It is used for the remaining amount management, but the display is set to “0” at the start of spraying on the field, the spray amount is checked at the end, the display is set to “0” at the start of the morning work, and at the end of the evening work today There are various usages depending on the driver's will, such as how many liters the chemical solution was used.
[0031]
In performing the automatic spraying control, it is necessary to check whether the type of the nozzle boom 6 to be actually attached matches the type of the virtual nozzle boom used for the control. If they are different, there is a risk that the concentration will be unintended by the operator due to the difference in the data of the spray control. Therefore, when the display of “spreading setting” is selected and, for example, a nozzle boom that sprays 25 liters per 10 ares (one counter) is used, the display on the display unit 66 is set to “25” on the lower side of the panel. The spray setting switch 75 is pressed to select and match the control data and the type of the mounting nozzle boom 6. Other display nozzle boom, "50" liter "75" liters, "100" l or the like can be selected. If the selection data is left on the display unit 66 for about 2 seconds, the selection data is taken into the CPU 47 and becomes the data of the spraying control.
[0032]
Next, the variable flow control valve 14 will be described.
As described above, the variable flow rate control valve 14 attached to the tip of the lower delivery pipe 16 controls the spray amount of the chemical liquid discharged from the lower delivery pipe 16 to the nozzle boom 6 side, and is a high pressure chemical liquid path. From the spray nozzle 36 of the nozzle boom 6, the amount of the chemical liquid sprayed from the spray nozzle 36 of the nozzle boom 6 to the field surface is reduced by squeezing the chemical liquid entered from 40 and the opening of the variable flow control valve 14 is increased. Increase the amount of chemicals sprayed on the field surface.
[0033]
As shown in FIG. 1, a vertical receiving hole 76 is opened at the rear part of the high-pressure chemical channel 40 opened in the front-rear direction in the lower delivery pipe 16, and the round shaft 14 a of the variable flow control valve 14 is opened in the receiving hole 76. Is attached by an electric motor 73 so as to be movable up and down.
The electric motor 73 that rotates at about 3,600 rpm decelerates and rotates the lower protruding screw shaft 78 to about 40 rpm by a reduction device 77 such as a gear. The electric motor 73 is a forward / reverse motor. The motor 73 rotates the screw shaft 78 forward and backward, and moves the round shaft 14a up and down to cut the outer periphery of the lower end of the round shaft 14a in a substantially oblique plane. The gap between the inclined plane 14b and the receiving hole 76 is changed, and the opening degree of the variable flow rate control valve 14 is changed and adjusted to change the flow rate to the spray amount control hydraulic pressure path 44 and the rotational speed of the screw shaft 78 in a substantially direct proportion. It is possible.
[0034]
An opening sensor 79 detects the vertical position of the round shaft 14 a by the vertical movement of the arm 79 a and transmits it to the CPU 47.
The above-described upper cover 48 has a rear half portion substantially parallel to the upper surface of the side portion 3, and the front end of the front cover 48 is formed to have a front-up slope so that the driver can easily operate and monitor it. It is in form.
[0035]
7 is a front perspective view of the control tank 2, and a plurality of semicircular mounting seats 81 are vertically mounted on the front wall surface 80 of the side part 3 of the control tank 2 that wraps around the driver's seat 1 side. A water discharge hose or the like to the nozzle boom 6 attached to the recessed portion 11 of the side portion 3 is fixed with a lid plate 82.
[Brief description of the drawings]
FIG. 1 is a side view of an essential part of a sprayer circuit configuration of a control machine.
FIG. 2 is a plan view of a display panel.
FIG. 3 is an overall circuit diagram for explanation of a spray circuit.
FIG. 4 is an overall side view, partly in section, of a passenger management machine.
FIG. 5 is an overall side view of the riding management machine when a boom and a tank are attached.
FIG. 6 is a plan view thereof.
FIG. 7 is a perspective view of a control tank and another main part.
8 is a perspective view when a cover is attached to the control tank. FIG.
FIG. 9 is a rear perspective view of the control tank.
10 is an enlarged view of FIG. 9;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Driver's seat 2 Control tank 3 Side part 4 Control pump 5 Car body 6 a Nozzle boom
6b nozzle boom
6c Nozzle boom 7 Display panel 8 Filter 9 First water channel 10 Second water channel 11 Recessed portion 12 Spray circuit 13 Air chamber 14 Variable flow rate control valve 15 Upper delivery pipe 16 Lower delivery pipe
17 electromagnetic clutch
18 automatic switches
19 momentary switch
26 rear side
37 floors
47 CPU
48 top cover
66 display section
67 display selector switch
68 triangle mark
71 increase switch
72 decrease switch
73 electric motor
80 front wall
81 semicircular mounting seat
82 lid plate

Claims

The bottom surface of the control tank (2) is placed on the floor (37) extending from the left and right sides of the driver seat ( 1 ) to the rear side, and the control is formed in a concave shape from the side to the rear side of the driver seat ( 1 ). A tank ( 2 ) is detachably mounted, and the control tank ( 2 ) is placed under the driver's seat (1) while mixing the water and chemicals in a state where water and chemicals are separately stored. And a filter (8) is disposed at the lower rear of the control pump ( 4 ), and from the nozzle boom ( 6 ) attached to the end of the vehicle body ( 5 ) via the control pump ( 4 ) to the ground side. the riding-control machine for spraying, installing the control tank (2) side portions (3) of the driver's seat (1) a display panel for displaying a scatter conditions, distribution state, etc. on the side of the (7), control tank (2 ) The left and right sides (3) of the driver's seat (1) are aligned along the left and right sides The outside of the body (5) is arranged along the outer edge of the vehicle body (5). The front end side of the control tank (2) located at the rear side of the vehicle body (5) is low and high on the rear side (26) side. A recessed portion (11) that is formed slightly higher than the seating surface of (1) and in which a part on the driver's seat (1) side of the side portion (3) of the control tank (2) is recessed, To the inlet (11), the air chamber (13) for maintaining the hydraulic pressure of the spray circuit (12), the variable flow rate control valve (14) for adjusting the spray flow rate, and the nozzle booms (6a, 6b, 6c) for each spraying A box of a CPU (47) for controlling spraying in the front inner portion of the upper cover (48) that covers the recessed portion (11) of the control tank (2), and has a structure in which a branched upper delivery pipe (15) is arranged. The upper surface of the box of the CPU (47) is visible from the driver's seat as the display panel (7). In such a manner, the upper cover (48) is attached to the upper surface display window portion, and the front side wall (80) of the side portion (3) of the control tank (2) is attached to the side portion (3). It is characterized in that the water discharge hose to the nozzle boom (6) attached to the recessed portion (11) is provided on the plurality of semicircular arc mounting seats (81) in the vertical direction and fixed by the cover plate (82). A passenger control machine.

The control pump (4) controls the driving operation by turning on and off the electromagnetic clutch (17). The on / off operation switch is connected to the automatic switch (18) of the display panel (7) and the driver's seat ( 1) When the momentary switch (19) provided in the vicinity is operated at a plurality of locations, and the display switch (67) on the right side of the display section (66) of the display panel (7) is turned ON, the display section (66) Select one of the display items “Spreading setting”, “Pressure”, “Flow rate” and “Total” with the triangle mark (68) on the left, and display the bottom of the display panel (7) while “Pressure” is displayed. After pressing the “Increase” and “Decrease” switches (71, 72) to change the displayed pressure value, the CPU (47) takes in the changed display pressure as the target pressure if it is left for a predetermined period of time. Variable flow rate to achieve pressure The control valve (14) is controlled to be opened and closed by an electric motor (73), and when "spreading setting" is selected, the type of nozzle that sprays a predetermined amount of chemical solution per unit area can be selected and selected. 2. The riding control apparatus according to claim 1, wherein the data is taken into the CPU (47) when it is left on the display section (66) for a predetermined time to become data for spray control.