JP3857940B2

JP3857940B2 - Soil disinfector

Info

Publication number: JP3857940B2
Application number: JP2002086751A
Authority: JP
Inventors: 薫本多; 正明松林
Original assignee: 松山株式会社
Priority date: 2002-03-26
Filing date: 2002-03-26
Publication date: 2006-12-13
Anticipated expiration: 2022-03-26
Also published as: JP2003274836A

Description

【０００１】
【発明の属する技術分野】
本発明は、壌病原虫等を防除するために、土壌消毒用の薬液を圃場の土中に注入する土壌消毒機に関する。
【０００２】
【従来の技術】
従来、例えばトラクタ等の走行車にて牽引される牽引式の土壌消毒機として、圃場に薬液注入用溝を形成するサブソイラー等の溝形成刃体と、その薬液注入用溝に薬液を注入する薬液注入手段と、薬液注入後の圃場を鎮圧する鎮圧ローラとを備えるサブソイラー消毒機等が広く知られている。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来の土壌消毒機では、例えば図７に示されるように、鎮圧ローラ１で薬液注入後の圃場を鎮圧しても、窪んだ走行車踏圧部２と開口した薬液注入用溝３とが残るため、薬液の気化ガスが圃場の土中から大気中に漏れ出しやすく、十分な消毒効果が得られないおそれがある。
【０００４】
本発明は、このような点に鑑みなされたもので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことを適切に抑制でき、十分な消毒効果を得ることができる土壌消毒機を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１記載の土壌消毒機は、走行車による牽引により前方に移動しながら土壌消毒用の薬液を圃場の土中に注入する土壌消毒機であって、前記圃場の走行車踏圧部に土を寄せる第１土寄せ手段と、前記圃場の走行車踏圧部およびこの走行車踏圧部の近傍部分の少なくともいずれか一方に薬液注入用溝を形成する溝形成刃体と、前記薬液注入用溝に前記薬液を注入する薬液注入手段と、前記薬液が注入された前記薬液注入用溝に土を寄せる第２土寄せ手段と、この第２土寄せ手段の後方位置で前記圃場を鎮圧する鎮圧手段と、前記第１土寄せ手段の前方位置で前記圃場の走行車踏圧部の窪みをなくす土持上げ手段とを備えるものである。
【０００６】
そして、圃場の走行車踏圧部に土を寄せる第１土寄せ手段と、薬液注入用溝を形成する溝形成刃体と、薬液注入用溝に薬液を注入する薬液注入手段と、薬液が注入された薬液注入用溝に土を寄せる第２土寄せ手段とを備えるので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことを適切に抑制することが可能となる。また、第２土寄せ手段の後方位置で圃場を鎮圧する鎮圧手段を備えるので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことを簡単かつ適切に抑制することか可能となり、また第１土寄せ手段の前方位置で圃場の走行車踏圧部の窪みをなくす土持上げ手段を備えるので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことをより一層適切に抑制することが可能となる。
【０００７】
請求項２記載の土壌消毒機は、請求項１記載の土壌消毒機において、土持上げ手段、第１土寄せ手段および第２土寄せ手段の各々は、振動可能となっているものである。
【０００８】
そして、土持上げ手段、第１土寄せ手段および第２土寄せ手段の各々が振動可能となっているので、牽引抵抗が減少し、作業効率が向上する。
【０００９】
請求項３記載の土壌消毒機は、請求項１または２記載の土壌消毒機において、第１土寄せ手段および第２土寄せ手段の各々は、前後方向に対して所定角度傾斜した略水平な方向に長手方向を有する細長状でかつ幅方向一端側から幅方向他端側に向って徐々に下降した前下り傾斜状の土寄せ傾斜面を有するものである。
【００１０】
そして、第１土寄せ手段の土寄せ傾斜面および第２土寄せ手段の土寄せ傾斜面により、土をスムーズに寄せることが可能となる。
【００１１】
請求項４記載の土壌消毒機は、請求項１記載の土壌消毒機において、第１土寄せ手段は、圃場の表面近くの土中を前方に移動しながら、圃場の走行車踏圧部の表面上に側方から土を寄せる第１土寄せ板を有し、第２土寄せ手段は、圃場の表面近くの土中を前方に移動しながら、薬液注入後の薬液注入用溝の内部空間およびこの薬液注入用溝近傍における圃場の表面上に側方から土を寄せる第２土寄せ板を有するものである。
【００１２】
請求項５記載の土壌消毒機は、請求項４記載の土壌消毒機において、第１土寄せ板と第２土寄せ板とが、前後に互いに離間対向して配置されているものである。
【００１３】
請求項６記載の土壌消毒機は、請求項１ないし５のいずれか一記載の土壌消毒機において、土持上げ手段は、圃場の土中を前方に移動しながら、圃場の走行車踏圧部の略全体の土をやや持ち上げてこの走行車踏圧部の窪みをなくす前面視略逆Ｔ字状の土持上げ部材を有するものである。
【００１４】
【発明の実施の形態】
以下、本発明の土壌消毒機の一実施の形態の構成を図面を参照して説明する。
【００１５】
図１および図２において、５は牽引式の土壌消毒機で、この土壌消毒機５は、例えば走行車であるトラクタＴの後部に連結された状態でこのトラクタＴによる牽引により圃場Ａを進行方向前方（図示Ｘ方向）に移動しながら、土壌消毒用の薬液を圃場Ａの土中に注入して封鎖する並列２連型のサブソイラー消毒機等である。
【００１６】
そして、この土壌消毒機５は、機枠６を備え、この機枠６の前側中央部には、トップピン７、ロワピン８等にて構成された走行車連結手段であるトラクタ連結手段９が設けられているとともに、トラクタＴからの動力を入力する入力軸10が回転可能に設けられている。トラクタ連結手段９はトラクタＴの３リンク機構11に連結され、入力軸10はトラクタＴのＰＴＯ軸に伝動手段を介して連結されている。
【００１７】
また、機枠６には、圃場Ａの走行車踏圧部である車輪踏圧部Ａ1、すなわち例えばトラクタＴの後輪Ｔ1，Ｔ1が通過した部分に土を寄せる複数、例えば左右一対の土寄せ手段である第１土寄せ手段15，15と、後輪Ｔ1の後方位置で圃場Ａの車輪踏圧部Ａ1に略縦長凹状の薬液注入用溝Ａ2を形成する複数、例えば左右一対のサブソイラー等の溝形成刃体16，16と、この溝形成刃体16，16にて形成された薬液注入用溝Ａ2に薬液を注入する複数、例えば左右一対の薬液注入手段である薬液注入管17，17と、この薬液注入管17，17にて薬液が注入された薬液注入用溝Ａ2に土を寄せる複数、例えば左右一対の土寄せ手段である第２土寄せ手段18，18とが設けられている。
【００１８】
さらに、機枠６の前端側には、第１土寄せ手段15の所定部分の前方位置で、この第１土寄せ手段15の土寄せに先立って、締め固まった車輪踏圧部Ａ1の土を元の膨軟状態に戻すようにやや持ち上げ、圃場Ａの車輪踏圧部Ａ1の窪みをなくす複数、例えば左右一対の土持上げ手段21，21が設けられている。
【００１９】
また一方、機枠６の後端側には、第２土寄せ手段18の後方位置（溝形成刃体16の後方位置）で、薬液注入後の圃場Ａをこの圃場Ａの表面が凸凹のない略平坦な状態になるように鎮圧する左右方向の１本の鎮圧手段である鎮圧ローラ22が回転可能に設けられている。
【００２０】
なお、溝形成刃体16、土持上げ手段21、第１土寄せ手段15および第２土寄せ手段18の各々は、入力軸10からの動力に基いて前後方向に振動可能となっている。
【００２１】
ここで、各土持上げ手段21は、互いに同一構造のもので、例えば圃場Ａの土中を前方に移動しながら車輪踏圧部Ａ1の略全体の土をやや持ち上げ、この車輪踏圧部Ａ1の窪みをなくす前面視略逆Ｔ字状の土持上げ部材31を有している。
【００２２】
この土持上げ部材31は、略Ｌ字状の２つの爪（ロータリ爪）32，32が接合されて構成されたもので、略垂直状の垂直板部33を有し、この垂直板部33の下端部から、やや湾曲した前下り傾斜状の左右一対の作用板部34，34が斜め下側方に向ってそれぞれ一体に突出している。なお、両作用板部34の先端間の距離は後輪Ｔ1の幅より大きくなっている。この垂直板部33の上端部は、左右方向の支軸36を中心として前後方向に回動する前側振動フレームである第１回動フレーム37に取り付けられている。
【００２３】
そして、機枠６の第１回動フレーム37が、入力軸10に連結された上ローラ38の偏心回転に基づく下ローラ39の昇降に伴って、支軸36を中心として回動すると、左右一対の土持上げ部材31が、第１回動フレーム37とともに前後方向に振動する。
【００２４】
各第１土寄せ手段15は、互いに左右対称構造のもので、例えば圃場Ａの表面近くの土中を前方に移動しながら、圃場Ａの車輪踏圧部Ａ1の略平面状の表面上に側方から土を寄せる略細長板状の第１土寄せ板41を有している。
【００２５】
この第１土寄せ板41は、図１および図３に示されるように、前後方向に対して所定角度θ（θは例えば約４５度）傾斜した略水平な方向に長手方向を有する細長状で、かつ、幅方向一端側から幅方向他端側に向って徐々に下降した前下り傾斜状の土寄せ傾斜面42を前面に有している。なお、図２から明らかなように、この前側方を向いた細長状の土寄せ傾斜面42は、長手方向一端側である前端側から長手方向他端側である後端側に向って徐々にやや上昇した略水平な状態となっている。
【００２６】
また、進行方向右側の第１土寄せ手段15の第１土寄せ板41の前端部と進行方向左側の第１土寄せ手段15の第１土寄せ板41の前端部とが一体に連結され、これら２つの第１土寄せ板41にて平面視略く字状の土寄せ体43が構成されている。
【００２７】
さらに、左右一対の第１土寄せ板41の前端側後面相互が略三角形状の連結板45にて一体に連結され、この連結板45から略垂直状の垂直板46が上方に向って一体に突出し、この垂直板46の上端部が第１回動フレーム37に取り付けられている。
【００２８】
そして、機枠６の第１回動フレーム37が、入力軸10に連結された上ローラ38の偏心回転に基づく下ローラ39の昇降に伴って、支軸36を中心として回動すると、左右一対の第１土寄せ板41が、第１回動フレーム37および左右一対の土持上げ部材31とともに前後方向に振動する。なお、第１土寄せ手段15の第１土寄せ板41の後端側略半部の前方位置に、対応する土持上げ手段21の土持上げ部材31が配置されている。
【００２９】
各第２土寄せ手段18は、互いに左右対称構造のもので、例えば第１土寄せ手段15の後方位置で圃場Ａの表面近くの土中を前方に移動しながら、薬液注入後の薬液注入用溝Ａ2の内部空間およびこの薬液注入用溝Ａ2近傍における圃場Ａの表面上に側方から土を寄せる略細長板状の第２土寄せ板51を有しており、第１土寄せ板41と第２土寄せ板51とが前後に互いに離間対向した平行状態に配置されている。
【００３０】
この第２土寄せ板51は、第１土寄せ板41よりやや長さが短いものであり、この第２土寄せ板51も、第１土寄せ板41と同様、前後方向に対して所定角度θ（θは例えば約４５度）傾斜した略水平な方向に長手方向を有する細長状で、かつ、幅方向一端側から幅方向他端側に向って徐々に下降した前下り傾斜状の土寄せ傾斜面52を前面に有している。なお、図２から明らかなように、この前側方を向いた細長状の土寄せ傾斜面52は、長手方向一端側である前端側から長手方向他端側である後端側に向って徐々にやや上昇した略水平な状態となっている。
【００３１】
また、進行方向右側の第２土寄せ手段18の第２土寄せ板51の前端部と進行方向左側の第２土寄せ手段18の第２土寄せ板51の前端部とが一体に連結され、これら２つの第２土寄せ板51にて平面視略く字状の土寄せ体53が構成されている。
【００３２】
さらに、左右一対の第２土寄せ板51の前端側後面相互が略三角形状の連結板55にて一体に連結され、この連結板55から略垂直状の垂直板56が上方に向って一体に突出している。この垂直板56の上端部は、左右方向の支軸58を中心として前後方向に回動する後側振動フレームである第２回動フレーム59に取り付けられている。
【００３３】
そして、機枠６の第２回動フレーム59が、入力軸10に連結された上ローラ38の偏心回転に基づく下ローラ39の昇降に伴って、支軸58を中心として回動すると、左右一対の第２土寄せ板51が、第２回動フレーム59とともに前後方向に振動する。なお、第１回動フレーム37の回動アーム37aと第２回動フレーム59の回動アーム59aとが連結リンク60を介して連結されている。
【００３４】
各溝形成刃体16は、互いに同一構造のもので、例えば下部が圃場Ａの土中に差し込まれた状態で前方に移動しながら、圃場Ａの車輪踏圧部Ａ1の縁部分に略縦長凹状の薬液注入用溝Ａ2を形成する上下方向に細長い略細長板状の振動刃61を有している。
【００３５】
この振動刃61は、図２に示されるように、前端下部に鋭利な切削刃部62が形成されている。また、この振動刃61の下端部にはチゼル63が取り付けられており、この振動刃61の上端部が第２回動フレーム59に取り付けられている。
【００３６】
そして、機枠６の第２回動フレーム59が、入力軸10に連結された上ローラ38の偏心回転に基づく下ローラ39の昇降に伴って、支軸58を中心として回動すると、左右一対の溝形成刃体16が、第２回動フレーム59および左右一対の第２土寄せ板51とともに前後方向に振動する。なお、各溝形成刃体16は、対応する第１土寄せ板41および第２土寄せ板51間の位置に配置されている。
【００３７】
各薬液注入管17は、例えば対応する溝形成刃体16の後端部に沿って配置されている。すなわち、薬液注入管17は、溝形成刃体16の振動刃61の後端部にこの後端部に沿って取り付けられ、この薬液注入管17の下端部に薬液吐出口65が開口形成されている。
【００３８】
また、この薬液注入管17の上端部にはホース66の一端部が接続され、このホース66の他端部がポンプ67に接続され、このポンプ67と薬液タンク68とは接続ホース69を介して連通されている。
【００３９】
そして、機枠６に設けられた左右一対のゲージ輪等の接地輪71，71が圃場Ａから受ける力で回転すると、この接地輪71の回転に応じてポンプ67が作動し、各薬液タンク68の薬液が、接続ホース69、ポンプ67、ホース66および薬液注入管17を通って、薬液吐出口65から土中つまり薬液注入用溝Ａ2の内部空間に注入される。
【００４０】
なお、接地輪71からの動力は、チェーンケース72内のチェーンおよび伝動シャフト73等にて構成された伝動手段74を介してポンプ67の作動部に伝達される。また、左右一対の薬液タンク68，68は機枠６の左右両側に取り付けられ、両薬液タンク68に共通の１つのポンプ67が機枠６の左右方向略中央部に取り付けられている。
【００４１】
鎮圧ローラ22は、入力軸10からの動力に基いてスリップ回転（強制回転）するもので、例えば機枠６のブラケット76およびチェーンケース77間に架け渡された左右方向のローラ軸78を有し、このローラ軸78に略円筒状のローラ本体79が取り付けられている。なお、鎮圧ローラ22の接地圧は、接地圧調節手段80で調節可能となっている。
【００４２】
次に、上記一実施の形態の作用等を説明する。
【００４３】
土壌消毒機５がトラクタＴによる牽引により圃場Ａを進行方向前方に移動すると、トラクタＴの後輪Ｔ1の通過により圃場Ａに略浅溝凹状の車輪踏圧部Ａ1が一旦形成されるが、この車輪踏圧部Ａ1の窪みは、図４に示されるように、振動する土持上げ手段21の土持上げ部材31による土の持上げによりなくなり、この車輪踏圧部Ａ1の表面が他の部分の表面と略面一となる。
【００４４】
そして、その圃場Ａの車輪踏圧部Ａ1の略平面状の表面上に、振動する第１土寄せ手段15の第１土寄せ板41の土寄せ傾斜面42によって、車輪踏圧部Ａ1に隣接する他の部分の表面近くの比較的広範囲の土が寄せ集められる（図５参照）。
【００４５】
その後、振動する溝形成刃体16によって圃場Ａの車輪踏圧部Ａ1に薬液注入用溝Ａ2が形成され、この薬液注入用溝Ａ2内に薬液注入管17によって薬液タンク68からの薬液が注入される。
【００４６】
次いで、図５および図６に示されるように、薬液が注入された薬液注入用溝Ａ2の内部空間およびこの薬液注入用溝Ａ2近傍における圃場Ａの表面上に、振動する第２土寄せ手段18の第２土寄せ板51の土寄せ傾斜面52によって、薬液注入用溝Ａ2からやや離された部分の表面近くの比較的広範囲の土が寄せ集められ、薬液注入用溝Ａ2が閉塞状態となる。
【００４７】
そして、スリップ回転中の鎮圧ローラ22によって、第１土寄せ板41による寄せ土と第２土寄せ板51による寄せ土とを含む圃場Ａの表面部を形成する土が鎮圧され、薬液注入後の圃場Ａの表面が凸凹のない略平坦な均一状態になり、その結果、薬液の大気中への揮散が抑制される。
【００４８】
このようにして、上記一実施の形態の土壌消毒機５によれば、トラクタＴの後輪Ｔ1の後方位置で走行車踏圧部Ａ1全体の窪みをなくす土持上げ手段21と、この土持上げ手段21の後方位置で走行車踏圧部Ａ1側に土を寄せる第１土寄せ手段15と、この第１土寄せ手段15の後方位置で走行車踏圧部Ａ1に薬液注入用溝Ａ2を形成する溝形成刃体16と、この溝形成刃体16にて形成された薬液注入用溝Ａ2に薬液を注入する薬液注入管17と、薬液注入後の薬液注入用溝Ａ2側に土を寄せる第２土寄せ手段18と、この第２土寄せ手段18の後方位置で圃場Ａを鎮圧する鎮圧ローラ22とを備えるので、従来のように窪んだ走行車踏圧部２と開口した薬液注入用溝３とが残るようなことがなく、薬液の気化ガスが圃場Ａの土中から大気中に漏れ出すことを適切に抑制でき、十分な消毒効果を得ることができる。
【００４９】
また、薬液の注入作業の際には、溝形成刃体16、土持上げ手段21、第１土寄せ手段15および第２土寄せ手段18の各々が入力軸10からの動力に基いて前後方向に振動するので、牽引抵抗を減少でき、トラクタＴへの負荷を小さくでき、よって作業効率を向上できる。
【００５０】
さらに、第１土寄せ手段15および第２土寄せ手段18に関しては、前後方向に振動するため、土を進行方向前方に押していくようなことがなく、土を上方側から進行方向後方に逃しつつ所定の土寄せ部分に向けて側方に送ることができるので、第１土寄せ手段15および第２土寄せ手段18の各々によって土を全体として平均的に寄せ集めることができる。
【００５１】
なお、土壌消毒機５は、溝形成刃体16、土持上げ手段21、第１土寄せ手段15および第２土寄せ手段18等を左右一対ずつ備える並列２連型のものには限定されず、例えば、図示しないが、溝形成刃体16等を１つずつ備える単一型のものや、溝形成刃体16等を４つずつ備える並列４連型のもの等でもよい。
【００５２】
また、溝形成刃体16は、車輪踏圧部Ａ1等の走行車踏圧部のみに薬液注入用溝Ａ2を形成するものには限定されず、圃場Ａの走行車踏圧部およびこの走行車踏圧部の近傍部分の少なくともいずれか一方に薬液注入用溝Ａ2を形成するものであればよく、例えば走行車踏圧部の近傍部分（走行車踏圧部からややずれた部分）のみに形成するものや、並列複連型で少なくとも走行車踏圧部およびこの走行車踏圧部の近傍部分の両方に形成するもの等でもよい。
【００５３】
【発明の効果】
請求項１の発明によれば、圃場の走行車踏圧部に土を寄せる第１土寄せ手段と、薬液注入用溝を形成する溝形成刃体と、薬液注入用溝に薬液を注入する薬液注入手段と、薬液が注入された薬液注入用溝に土を寄せる第２土寄せ手段とを備えるので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことを適切に抑制でき、十分な消毒効果を得ることができる。また、第２土寄せ手段の後方位置で圃場を鎮圧する鎮圧手段を備えるので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことを簡単かつ適切に抑制でき、また第１土寄せ手段の前方位置で圃場の走行車踏圧部の窪みをなくす土持上げ手段を備えるので、薬液の気化ガスが圃場の土中から大気中に漏れ出すことをより一層適切に抑制できる。
【００５４】
請求項２の発明によれば、土持上げ手段、第１土寄せ手段および第２土寄せ手段の各々が振動可能となっているので、牽引抵抗を減少でき、作業効率を向上できる。
【００５５】
請求項３の発明によれば、第１土寄せ手段の土寄せ傾斜面および第２土寄せ手段の土寄せ傾斜面により、土をスムーズに寄せることができる。
【図面の簡単な説明】
【図１】本発明の土壌消毒機の一実施の形態を示す平面図である。
【図２】同上土壌消毒機の側面図である。
【図３】同上土壌消毒機の土寄せ手段の斜視図である。
【図４】同上土壌消毒機による作業時の圃場断面図である。
【図５】同上土壌消毒機の土寄せ手段の平面図である。
【図６】同上土壌消毒機による作業時の圃場断面図である。
【図７】従来の土壌消毒機による作業時の圃場断面図である。
【符号の説明】
５土壌消毒機
15 土寄せ手段である第１土寄せ手段
16 溝形成刃体
17 薬液注入手段である薬液注入管
18 土寄せ手段である第２土寄せ手段
21 土持上げ手段
22 鎮圧手段である鎮圧ローラ
42，52 土寄せ傾斜面
Ａ圃場
Ａ1 走行車踏圧部である車輪踏圧部
Ａ2 薬液注入用溝[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soil disinfecting machine that injects a chemical solution for soil disinfection into soil in a field in order to control loam pathogens and the like.
[0002]
[Prior art]
Conventionally, as a tow-type soil disinfecting machine towed by a traveling vehicle such as a tractor, a groove forming blade body such as a subsoiler for forming a chemical solution injection groove in a field, and a chemical solution for injecting a chemical solution into the chemical injection groove A subsoiler disinfecting machine and the like including an injection means and a pressure-reducing roller for pressure-reducing a field after chemical solution injection are widely known.
[0003]
[Problems to be solved by the invention]
However, in the conventional soil disinfecting machine, as shown in FIG. 7, for example, even if the field after the chemical solution is injected with the pressure reducing roller 1, the depressed traveling vehicle stepping pressure portion 2 and the opened chemical solution injection groove 3 are provided. Therefore, the vaporized gas of the chemical solution tends to leak from the soil of the field into the atmosphere, and there is a possibility that a sufficient disinfection effect cannot be obtained.
[0004]
The present invention has been made in view of the above points, and a soil disinfecting machine that can appropriately suppress the vaporization of chemical liquid from leaking from the soil of the field into the atmosphere and can obtain a sufficient disinfecting effect. The purpose is to provide.
[0005]
[Means for Solving the Problems]
請 Motomeko 1 soil disinfection machine described, the drug solution for soil disinfection a soil disinfecting device for injecting into the soil of the field while moving forward by towing by vehicles, soil vehicle trampling of the field A first earthing means for approaching, a groove forming blade body for forming a chemical solution injection groove in at least one of the traveling vehicle treading pressure portion of the field and the vicinity of the traveling vehicle tread pressure portion, and the chemical solution injection groove in the groove A chemical solution injecting means for injecting a chemical solution, a second soil collecting means for bringing the soil into the chemical solution injecting groove into which the chemical solution has been injected, a pressure reducing means for suppressing the field at a position behind the second soil bringing means, and the first 1 A soil lifting means for eliminating a depression in the traveling vehicle treading portion of the farm field at a position in front of the soil gathering means .
[0006]
Then, the first earthing means for bringing the soil to the traveling vehicle treading portion in the field, the groove forming blade body for forming the chemical liquid injection groove, the chemical liquid injection means for injecting the chemical liquid into the chemical liquid injection groove, and the chemical liquid were injected. Since the second soil collecting means for bringing the soil into the chemical solution injection groove is provided, it is possible to appropriately suppress the vaporized gas of the chemical solution from leaking from the soil in the field into the atmosphere. In addition, since the pressure reducing means for suppressing the field at the rear position of the second soil gathering means is provided, it is possible to easily and appropriately suppress the leakage of the vapor of the chemical liquid from the soil of the field into the atmosphere. Since it is equipped with a soil lifting means that eliminates the depression of the traveling vehicle treading pressure section at the position in front of the soil-carrying means, it is possible to further appropriately prevent the vaporized gas of the chemical solution from leaking from the soil of the field into the atmosphere. It becomes.
[0007]
The soil disinfecting machine according to claim 2 is the soil disinfecting machine according to claim 1, wherein each of the soil lifting means, the first earthing means and the second earthing means is capable of vibrating.
[0008]
And since each of the earth lifting means, the 1st earth gathering means, and the 2nd earth gathering means can be vibrated, traction resistance decreases and working efficiency improves.
[0009]
Soil disinfection machine according to claim 3, wherein, in claim 1 or 2 Soil disinfection machine wherein each of the first earthing up means and the second earthing up means is elongated in a substantially horizontal direction that is inclined at a predetermined angle with respect to the longitudinal direction It has an elongated shape having a direction, and has a soiled inclined surface with a forward and downward slope that gradually descends from one end in the width direction toward the other end in the width direction.
[0010]
Then, the soil can be smoothly brought together by the earth gathering inclined surface of the first earth gathering means and the earth gathering inclined surface of the second earth gathering means.
[0011]
The soil disinfecting machine according to claim 4 is the soil disinfecting machine according to claim 1, wherein the first soil squeezing means moves forward in the soil near the surface of the field, while on the surface of the traveling vehicle pressure unit of the field. The first earthing plate that draws the soil from the side, and the second earthing means move forward in the soil near the surface of the field, and the inner space of the groove for injecting the chemical liquid after the chemical injection, and this chemical injection It has the 2nd earthing board which draws soil from the side on the surface of the field in the vicinity of a ditch.
[0012]
The soil disinfecting machine according to claim 5 is the soil disinfecting machine according to claim 4, wherein the first and second shredder plates are disposed so as to be spaced apart from each other in the front-rear direction.
[0013]
The soil disinfecting machine according to claim 6 is the soil disinfecting apparatus according to any one of claims 1 to 5, wherein the soil lifting means is an abbreviation of a traveling vehicle stepping pressure unit in the field while moving forward in the soil of the field. It has a soil lifting member having a generally inverted T shape in front view that lifts the entire soil slightly to eliminate the depression of the traveling vehicle treading portion.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of an embodiment of a soil disinfecting apparatus of the present invention will be described with reference to the drawings.
[0015]
1 and 2, reference numeral 5 denotes a tow-type soil disinfecting machine. The soil disinfecting machine 5 is connected to the rear part of the tractor T, which is a traveling vehicle, for example. A parallel dual-type subsoiler disinfector that injects a chemical solution for soil disinfection into the soil of the field A and blocks it while moving forward (X direction in the figure).
[0016]
The soil disinfecting machine 5 includes a machine frame 6, and a tractor coupling means 9, which is a traveling vehicle coupling means composed of a top pin 7, a lower pin 8, and the like, is provided at the front center of the machine frame 6. In addition, an input shaft 10 for inputting power from the tractor T is rotatably provided. The tractor connecting means 9 is connected to the three-link mechanism 11 of the tractor T, and the input shaft 10 is connected to the PTO shaft of the tractor T via a transmission means.
[0017]
Further, the machine frame 6 is a plurality of, for example, a pair of left and right earthing means for bringing the earth to the wheel treading pressure part A1, which is a traveling vehicle treading pressure part of the field A, that is, for example, the portion where the rear wheels T1, T1 of the tractor T pass. A plurality of, for example, a pair of left and right subsoiler grooves forming blades 16 for forming a substantially vertically concave groove A2 in the wheel treading pressure portion A1 of the field A at the rear position of the rear wheel T1 and the first earthing means 15, 15 , 16, a plurality of, for example, a pair of left and right chemical liquid injection means 17, 17, which are chemical liquid injection means for injecting a chemical liquid into the chemical liquid injection groove A 2 formed by the groove forming blades 16, 16, and this chemical liquid injection pipe There are provided a plurality of, for example, a pair of left and right earthing means 18, 18 which are a pair of left and right earthing means for bringing the earth into the chemical solution injection groove A2 into which the chemical liquid has been injected at
[0018]
Further, on the front end side of the machine frame 6, the soil of the compacted wheel treading portion A 1 is placed at the front position of a predetermined portion of the first squeezing means 15 prior to the squeezing of the first squeezing means 15. A plurality of, for example, a pair of left and right earth lifting means 21 and 21 are provided to lift the wheel slightly so as to return to the state and eliminate the depression of the wheel treading portion A1 of the field A.
[0019]
On the other hand, at the rear end side of the machine frame 6, the surface of the field A after the injection of the chemical solution at the rear position of the second earthing means 18 (the rear position of the groove forming blade body 16) is not substantially uneven. A pressure-reducing roller 22 that is one pressure-reducing means in the left-right direction that reduces pressure so as to be in a flat state is rotatably provided.
[0020]
Note that each of the groove forming blade body 16, the earth lifting means 21, the first earthing means 15, and the second earthing means 18 can vibrate in the front-rear direction based on the power from the input shaft 10.
[0021]
Here, the soil lifting means 21 have the same structure as each other. For example, while moving forward in the soil in the field A, the soil lifting means 21 lifts up substantially the entire soil of the wheel pressing part A1, and the depression of the wheel pressing part A1 is formed. A soil lifting member 31 having a substantially inverted T-shape when viewed from the front is provided.
[0022]
This earth lifting member 31 is formed by joining two substantially L-shaped claws (rotary claws) 32, 32, and has a substantially vertical vertical plate portion 33. From the lower end, a pair of left and right action plates 34, 34, which are slightly curved and inclined forward and downward, project integrally toward the diagonally lower side. Note that the distance between the tips of both action plate portions 34 is greater than the width of the rear wheel T1. The upper end portion of the vertical plate portion 33 is attached to a first rotation frame 37 that is a front vibration frame that rotates in the front-rear direction around a support shaft 36 in the left-right direction.
[0023]
When the first rotation frame 37 of the machine frame 6 rotates about the support shaft 36 as the lower roller 39 moves up and down based on the eccentric rotation of the upper roller 38 connected to the input shaft 10, a pair of left and right The earth lifting member 31 vibrates in the front-rear direction together with the first rotation frame 37.
[0024]
Each of the first earthing means 15 has a bilaterally symmetric structure. For example, while moving forward in the soil near the surface of the field A, the first earthing means 15 from the side on the substantially planar surface of the wheel treading portion A1 of the field A. It has a substantially elongated plate-like first earthing board 41 that draws earth.
[0025]
As shown in FIG. 1 and FIG. 3, the first mulch plate 41 is an elongated shape having a longitudinal direction in a substantially horizontal direction inclined by a predetermined angle θ (θ is about 45 degrees, for example) with respect to the front-rear direction. In addition, the front side has an earthing inclined surface 42 that is inclined downward from the one end in the width direction toward the other end in the width direction. As is clear from FIG. 2, the slanted side-by-side inclined surface 42 facing the front side is gradually slightly from the front end side which is one end side in the longitudinal direction toward the rear end side which is the other end side in the longitudinal direction. It is in a nearly horizontal state where it has risen.
[0026]
Further, the front end portion of the first mulching plate 41 of the first digging means 15 on the right side in the traveling direction and the front end portion of the first digging plate 41 of the first digging means 15 on the left side in the traveling direction are integrally connected. The 1 mulcher plate 41 constitutes a bunker body 43 having a generally square shape in plan view.
[0027]
Furthermore, the front end side rear surfaces of the pair of left and right first earthing plates 41 are integrally connected by a substantially triangular connecting plate 45, and a substantially vertical vertical plate 46 projects upward integrally from the connecting plate 45. The upper end portion of the vertical plate 46 is attached to the first rotating frame 37.
[0028]
When the first rotation frame 37 of the machine frame 6 rotates about the support shaft 36 as the lower roller 39 moves up and down based on the eccentric rotation of the upper roller 38 connected to the input shaft 10, a pair of left and right The first earthing plate 41 vibrates in the front-rear direction together with the first rotating frame 37 and the pair of left and right earth lifting members 31. In addition, the soil lifting member 31 of the corresponding soil lifting means 21 is disposed at a front position of the substantially half of the rear end side of the first soil lifting plate 41 of the first soil lifting means 15.
[0029]
Each second earthing means 18 has a symmetrical structure with each other. For example, while moving forward in the soil near the surface of the field A at a rear position of the first earthing means 15, a chemical liquid injection groove A 2 after the chemical liquid injection. And a second slat plate 51 and a second slab plate on the surface of the field A in the vicinity of the chemical solution injection groove A 2. 51 are arranged in a parallel state in which they are spaced apart from each other in the front-rear direction.
[0030]
The second digging plate 51 is slightly shorter than the first digging plate 41. Similarly to the first digging plate 41, the second digging plate 51 also has a predetermined angle θ (θ is (For example, about 45 degrees) The front side is a sloping sloping surface 52 that has a longitudinal direction in a substantially horizontal direction that is inclined, and that gradually descends from one end in the width direction toward the other end in the width direction. Have. As is clear from FIG. 2, the slender earth-shifting inclined surface 52 facing the front side is gradually slightly from the front end side which is one end in the longitudinal direction toward the rear end side which is the other end in the longitudinal direction. It is in a nearly horizontal state where it has risen.
[0031]
In addition, the front end portion of the second mulching plate 51 of the second digging means 18 on the right side in the traveling direction and the front end portion of the second mulching plate 51 of the second mulching means 18 on the left side in the traveling direction are integrally connected. The two mulch plates 51 constitute a mulch body 53 having a generally square shape in plan view.
[0032]
Furthermore, the front end side rear surfaces of the pair of left and right second earthing plates 51 are integrally connected by a substantially triangular connecting plate 55, and a substantially vertical vertical plate 56 projects integrally upward from the connecting plate 55. ing. An upper end portion of the vertical plate 56 is attached to a second rotating frame 59 that is a rear vibration frame that rotates in the front-rear direction around a support shaft 58 in the left-right direction.
[0033]
When the second rotating frame 59 of the machine frame 6 rotates about the support shaft 58 as the lower roller 39 moves up and down based on the eccentric rotation of the upper roller 38 connected to the input shaft 10, a pair of left and right The second earthing plate 51 vibrates in the front-rear direction together with the second rotating frame 59. The rotating arm 37a of the first rotating frame 37 and the rotating arm 59a of the second rotating frame 59 are connected via a connecting link 60.
[0034]
The groove forming blades 16 have the same structure as each other. For example, while the lower part is moved forward with the lower part inserted into the soil of the field A, the edge part of the wheel pressing part A1 of the field A has a substantially vertically concave shape. It has a substantially elongated plate-like vibrating blade 61 that is elongated in the vertical direction to form the chemical solution injection groove A2.
[0035]
As shown in FIG. 2, the oscillating blade 61 has a sharp cutting blade portion 62 formed at the lower part of the front end. A chisel 63 is attached to the lower end portion of the vibrating blade 61, and the upper end portion of the vibrating blade 61 is attached to the second rotating frame 59.
[0036]
When the second rotating frame 59 of the machine frame 6 rotates about the support shaft 58 as the lower roller 39 moves up and down based on the eccentric rotation of the upper roller 38 connected to the input shaft 10, a pair of left and right The groove-forming blade body 16 vibrates in the front-rear direction together with the second rotating frame 59 and the pair of left and right second shuffle plates 51. Each groove forming blade body 16 is disposed at a position between the corresponding first digging plate 41 and second digging plate 51.
[0037]
Each chemical solution injection tube 17 is disposed along the rear end portion of the corresponding groove forming blade body 16, for example. That is, the chemical liquid injection tube 17 is attached to the rear end portion of the vibration blade 61 of the groove forming blade body 16 along the rear end portion, and the chemical liquid discharge port 65 is formed to be opened at the lower end portion of the chemical liquid injection tube 17. Yes.
[0038]
In addition, one end of a hose 66 is connected to the upper end of the chemical solution injection pipe 17, and the other end of the hose 66 is connected to a pump 67. The pump 67 and the chemical solution tank 68 are connected via a connection hose 69. It is communicated.
[0039]
When the grounding wheels 71, 71 such as a pair of left and right gauge wheels provided in the machine frame 6 are rotated by the force received from the field A, the pump 67 is operated according to the rotation of the grounding wheel 71, and each chemical solution tank 68 is operated. The chemical solution is injected through the connection hose 69, pump 67, hose 66 and chemical solution injection pipe 17 into the soil, that is, the internal space of the chemical solution injection groove A2 from the chemical solution discharge port 65.
[0040]
The power from the grounding wheel 71 is transmitted to the operating part of the pump 67 through the transmission means 74 constituted by the chain in the chain case 72, the transmission shaft 73, and the like. The pair of left and right chemical tanks 68, 68 are attached to the left and right sides of the machine casing 6, and one pump 67 common to both the chemical tanks 68 is attached to the substantially central portion of the machine casing 6 in the left-right direction.
[0041]
The pressure reducing roller 22 is a slip rotation (forced rotation) based on the power from the input shaft 10, and has, for example, a left and right roller shaft 78 spanned between the bracket 76 and the chain case 77 of the machine frame 6. A substantially cylindrical roller body 79 is attached to the roller shaft 78. The ground pressure of the pressure reducing roller 22 can be adjusted by the ground pressure adjusting means 80.
[0042]
Next, the operation and the like of the one embodiment will be described.
[0043]
When the soil disinfecting machine 5 is moved forward in the traveling direction by pulling by the tractor T, the wheel treading portion A1 having a substantially shallow groove shape is once formed in the field A by the passage of the rear wheel T1 of the tractor T. As shown in FIG. 4, the depression of the stepping pressure portion A1 is eliminated by lifting the soil by the soil lifting member 31 of the vibrating soil lifting means 21, and the surface of the wheel pressing portion A1 is substantially flush with the surface of other portions. It becomes.
[0044]
Then, on the substantially planar surface of the wheel treading pressure part A1 of the field A, other parts adjacent to the wheel treading pressure part A1 are caused by the earthing slope 42 of the first earthing plate 41 of the first earthing means 15 that vibrates. A relatively wide range of soil near the surface is collected (see FIG. 5).
[0045]
Thereafter, a chemical solution injection groove A2 is formed in the wheel pressing part A1 of the field A by the oscillating groove forming blade 16, and the chemical solution from the chemical solution tank 68 is injected into the chemical solution injection groove A2 by the chemical solution injection pipe 17. .
[0046]
Next, as shown in FIGS. 5 and 6, the second earthing means 18 that vibrates on the inner space of the chemical solution injection groove A2 into which the chemical solution has been injected and on the surface of the field A in the vicinity of the chemical solution injection groove A2. A relatively wide area of soil near the surface of the part slightly separated from the chemical injection groove A2 is gathered and collected by the earthing inclined surface 52 of the second mulch plate 51, and the chemical injection groove A2 is closed.
[0047]
And the soil which forms the surface part of the field A including the padding by the 1st padding board 41 and the padding by the 2nd padding board 51 is pressed down by the pressing roller 22 during slip rotation, and the field A after chemical | medical solution injection | pouring is carried out. As a result, the volatilization of the chemical into the atmosphere is suppressed.
[0048]
In this way, according to the soil disinfecting machine 5 of the above-described embodiment, the soil lifting means 21 that eliminates the depression of the entire traveling vehicle pressure unit A1 at the rear position of the rear wheel T1 of the tractor T, and the soil lifting means 21 The first earthing means 15 for bringing the soil toward the traveling vehicle treading pressure part A1 at the rear position, and the groove forming blade 16 for forming the chemical injection groove A2 in the traveling vehicle treading pressure part A1 at the rear position of the first earthing means 15 A chemical injection pipe 17 for injecting a chemical into the chemical injection groove A2 formed by the groove forming blade 16, and a second earthing means 18 for bringing the soil to the chemical injection groove A2 side after the chemical injection, Since the pressure reducing roller 22 for pressure reducing the field A is provided at the rear position of the second earthing means 18, there is no possibility that the recessed traveling vehicle stepping pressure portion 2 and the opened chemical liquid injection groove 3 remain as in the conventional case. , It is possible to appropriately prevent the vapor of the chemical liquid from leaking from the soil of the field A into the atmosphere. It can be obtained Do disinfection.
[0049]
In addition, when the chemical solution is injected, each of the groove forming blade 16, the earth lifting means 21, the first earthing means 15, and the second earthing means 18 vibrates in the front-rear direction based on the power from the input shaft 10. Therefore, the traction resistance can be reduced, the load on the tractor T can be reduced, and the working efficiency can be improved.
[0050]
Furthermore, since the first earthing means 15 and the second earthing means 18 vibrate in the front-rear direction, there is no need to push the earth forward in the traveling direction, and the predetermined dirt is released from the upper side to the rear in the traveling direction. Since the sheet can be sent to the side of the earth collecting part, the earth can be averaged together as a whole by each of the first earth collecting means 15 and the second earth arranging means 18.
[0051]
Note that the soil disinfecting machine 5 is not limited to a parallel duplex type including the groove forming blade body 16, the soil lifting means 21, the first soil lifting means 15, the second soil lifting means 18, and the like. Although not shown, a single type including one groove forming blade 16 or the like, or a parallel four-unit type including four groove forming blades 16 or the like may be used.
[0052]
Further, the groove forming blade body 16 is not limited to the one that forms the chemical liquid injection groove A2 only in the traveling vehicle stepping pressure portion such as the wheel pressing pressure portion A1, but the traveling vehicle stepping pressure portion in the field A and the traveling vehicle pressing pressure portion What is necessary is just to form the chemical injection groove A2 in at least one of the neighboring portions, for example, a portion formed only in the vicinity of the traveling vehicle treading pressure portion (a portion slightly deviated from the traveling vehicle treading pressure portion), It may be a continuous type and formed at least in both the traveling vehicle treading pressure portion and the vicinity of the traveling vehicle treading pressure portion.
[0053]
【The invention's effect】
According to the invention 請 Motomeko 1, a first earthing up means gather the soil vehicle trampling part of the field, and the groove forming blade for forming a liquid injection groove, liquid injector for injecting the chemical liquid injector groove And a second soil collecting means for bringing the soil into the chemical injection groove into which the chemical solution has been injected, so that the gas vapor of the chemical solution can be appropriately prevented from leaking from the soil of the field into the atmosphere, and is sufficiently disinfected An effect can be obtained. In addition, since the pressure reducing means for suppressing the field at the rear position of the second soil collecting means is provided, it is possible to easily and appropriately suppress the leakage of the vapor of the chemical liquid from the soil of the field into the atmosphere. Since the soil lifting means for eliminating the depression of the traveling vehicle treading pressure portion in the field at the front position is provided, it is possible to more appropriately suppress the vaporized gas of the chemical liquid from leaking into the atmosphere from the soil in the field.
[0054]
According to the second aspect of the present invention, since each of the earth lifting means, the first earthing means and the second earthing means can be vibrated, traction resistance can be reduced and work efficiency can be improved.
[0055]
According to the third aspect of the present invention, the soil can be smoothly brought together by the earth gathering inclined surface of the first earth gathering means and the earth gathering inclined surface of the second earth gathering means.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a soil disinfector of the present invention.
FIG. 2 is a side view of the soil disinfecting machine.
FIG. 3 is a perspective view of a soil laying means of the soil disinfecting machine.
FIG. 4 is a cross-sectional view of the field during work by the soil disinfecting machine.
[Fig. 5] Fig. 5 is a plan view of the soil gathering means of the soil disinfecting machine.
FIG. 6 is a cross-sectional view of the field during work by the soil disinfecting machine.
FIG. 7 is a cross-sectional view of a field during work using a conventional soil disinfecting machine.
[Explanation of symbols]
5 Soil disinfector
15 The first earthing means that is the earthing means
16 Grooving blade
17 Chemical liquid injection tube as chemical liquid injection means
18 2nd earthing means, which is earthing means
21 Lifting means
22 Squeezing roller as a means of squeezing
42,52 Inclined slope A Agricultural field A1 Wheel treading part which is a traveling vehicle treading part A2 Groove for chemical solution injection

Claims

A soil disinfecting machine that injects soil disinfectant into the soil of the field while moving forward by towing by a traveling vehicle,
First earthing means for bringing soil to the traveling vehicle treading portion of the field;
A groove forming blade that forms a groove for injecting a chemical solution in at least one of the traveling vehicle treading pressure portion in the field and the vicinity of the traveling vehicle treading pressure portion;
Chemical injection means for injecting the chemical into the chemical injection groove;
A second earthing means for bringing earth into the groove for injecting the chemical liquid into which the chemical liquid has been injected ,
A pressure-reducing means for pressure-reducing the field at a rear position of the second earthing means;
A soil disinfecting machine comprising soil lifting means for eliminating a depression in a traveling vehicle treading pressure portion of the farm field at a position in front of the first earthing means .

Tsuchimochi up means, each of the first earthing up means and the second earthing up means, soil disinfection machine according to claim 1, characterized in that it is made possible vibrations.

Each of the first earthing means and the second earthing means is an elongated shape having a longitudinal direction in a substantially horizontal direction inclined by a predetermined angle with respect to the front-rear direction, and gradually from one end in the width direction toward the other end in the width direction. The soil disinfecting machine according to claim 1 or 2 , wherein the soil disinfecting machine has a descending front-falling earth-shifting inclined surface.

The first earthing means has a first earthing board that brings the earth from the side onto the surface of the traveling vehicle treading part of the field while moving forward in the soil near the surface of the field,
The second squeezing means moves the soil forward from the soil near the surface of the field, and brings the soil from the side onto the internal space of the chemical solution injection groove after the chemical solution injection and the surface of the field in the vicinity of the chemical solution injection groove. Has a second mulch
The soil disinfecting machine according to claim 1.

The first mulch plate and the second mulch plate are disposed so as to be spaced apart from each other in the front-rear direction.
The soil disinfecting machine according to claim 4, wherein:

The soil lifting means moves the soil in the field forward and lifts the soil of the traveling vehicle pressure unit of the field a little to remove the depression of the traveling vehicle pressure unit. With components
A soil disinfector according to any one of claims 1 to 5, wherein