【０００１】
【発明の属する技術分野】
本発明は台木用苗及び穂木用苗の茎部を切断し、切断された台木の茎部と穂木の茎部とをその切断個所で接合固定させる接木装置に関する。
【０００２】
【従来の技術】
台木及び穂木の接木部を固定する筒状の保持具にゴム又は合成樹脂からなる弾性材を用いた技術がある（例えば特許文献１参照）
【０００３】
【特許文献１】特許第２５６１７５５号公報
【０００４】
【発明が解決しようとする課題】
上記従来技術にあっては、接木苗が成長して茎部が太くなると保持具は自然に外れて保持具の取外す手間は省けるが、保持具は半永久的に存在するためその都度回収する必要があるなどの手間の煩わしさがある。
【０００５】
【課題を解決するための手段】
したがって本発明は、穂木用苗と台木用苗とを接合固定させるに生分解可能な材料を用いると共に、接ぎ具はスリットを有する略円筒形状に形成させて、接木苗の成長に伴って接ぎ具が自然脱落しても、生分解によって自然消滅して接ぎ具の回収など不要とさせて作業の効率向上化を図り、また接ぎ具の拡張を容易とさせて、育苗潅水時に水溜まりができウイルスが発生するなどの不都合を防止して接木苗の成長を助長させるものである。
【０００６】
また、スリットには接ぎ具を押し広げる突起を形成させて、別途脱着部材などによる突起を掴んでの接ぎ具の容易な押し広げを可能とさせて、接ぎ具の確実な装着を可能とさせるものである。
【０００７】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて詳述する。図１は全体の側面図、図２は同正面図、図３は同平面図であり、接木装置１は半自動形に設け、前処理で断根したキュウリ或いはカボチャなどのウリ科やナスビ或いはジャガイモなどのナス科の苗の穂木用苗２及び台木用苗３を挟持する上下１組の穂木ハンド４及び台木ハンド５と、穂木及び台木ハンド４・５を装備して回転させる上下の回転円板６・７と、上下の回転円板６・７間を連結させるロッド軸８と回転円板６・７を間欠回転させるモータ９とを備えている。そして図４の平面視に示す如く、穂木及び台木ハンド４・５に苗２・３を投入操作する作業者１０の作業座席１１前位置の苗投入部１２に対し、反時計方向に円板６・７を９０度回転させた位置に苗切断機構１３を有する苗切断部１４を、また苗切断部１４よりさらに９０度回転させた位置に苗接合機構１５を有する苗接合部１６を、さらに苗接合部１６より９０度回転させた位置を接木苗の払出部１７に設けて、これら投入部１２・切断部１４・接合部１６・払出部１７の４つの工程で穂木及び台木ハンド４・５の回転を停止させる間欠駆動をモータ９で行うように構成している。
【０００８】
図４乃至図６に示す如く、上下１組とする穂木及び台木ハンド４・５の先端側を円板６外周より外側に突出させて９０度間隔で４組を円板６・７に装備させたもので、上部円板６に穂木ハンド４を直接的に取り付けると共に、穂木ハンド４より一定高さ下方にロッド軸８を介して、上下動自在に台木ハンド５を支持させている。図６、図８、図１０、図１１にも示す如く、前記穂木及び台木ハンド４・５は固定ハンド部１８と、固定ハンド部１８に開閉支点軸１９を介し揺動自在に連結する揺動ハンド部２０とを有し、円板６・７の回転で揺動ハンド部２０一端に設ける開閉ローラ２１が円筒形穂木及び台木用固定ドラム２２・２３外側面の開閉カム２４・２５に当接するとき、バネ２６に抗して揺動ハンド部２０を揺動させて、穂木及び台木ハンド４・５を開とさせるように構成している。
【０００９】
また図１１に示す如く、前記台木用固定ドラム２３の上端面を昇降カム２７に設けて、台木ハンド５の固定ハンド部１８下側に設置する昇降ローラ２８を昇降カム２７上に転接させ、回転軸２９を中心として円板６・７と一体的に台木ハンド５を回転させるとき、昇降カム２７によって台木ハンド５を昇降させるように構成している。なお、昇降カム２７で穂木ハンド４を昇降させても良い。
【００１０】
図８、図１２に示す如く、前記穂木ハンド４の固定ハンド部１８に穂木用苗２の子葉２ａ展開位置を基準として切断高さと切断方向を決定する子葉胚軸ストッパ３０と子葉方向安定棒３１とを一体的に設けて、穂木用苗２を手に持ち２葉を左右方向に展開させてハンド部１８・２０間に挿入するとき、胚軸２６をストッパ３０に当て、子葉２ａ展開部がストッパ３０に当たるまで引き下げて把持を行うように構成している。
【００１１】
図１３に示す如く、前記台木ハンド５は台木用苗３の子葉３ａ展開位置を基準として切断高さと切断方向を決定する子葉胚軸ストッパ３２と子葉方向安定板３９とを備え、台木用苗３を手に持ち２葉を穂木子葉２ａと直交する前後方向にしてハンド１８・２０間に挿入するとき、胚軸３ｂをストッパ３２に当て、子葉３ａ展開部がストッパ３２に当たるまで引き下げて把持を行うもので、接木装置１の投入作業台３４側方に設ける作業スイッチ３５の操作で各ハンド４・５が反時計方向に回転し始める瞬間に、固定ハンド部１８が胚軸下部を押すと同時にボールプランジャ３６及びバネ３７を介して胚軸上部を押す直立支持棒３８を設けて苗３の良好な把持を行う。さらに台木ハンド５が回転するときプランジャ３６が固定ハンド部１８を乗り越えて支持棒３８は初期位置に戻ると共に、回転方向側に配置するゴム吊れ４０で２葉の方向が修正され台木用苗３の把持姿勢の適正化が図られる。
【００１２】
図６、図７に示す如く、前記開閉カム２４・２５は固定ドラム２２・２３の払出部１７と投入部１２位置間を凸状カム面２４ａ・２５ａに形成して、各ハンド４・５の払出部１７と投入部１２間では開とさせて、苗２・３の投入や接木苗４１の払出（放出）を行うように構成している。
【００１３】
上記からも明らかなように、穂木用苗２の茎部である胚軸２ｂと台木用苗３の茎部である胚軸２ｂとを切断して接合固定する接木装置において、穂木用苗２及び台起用苗３をそれぞれ挟持する穂木ハンド４及び台木ハンド５の上下２段を１組として縦軸である回転軸２９回りに複数組配設させ、回転軸２９を中心として各ハンド４・５を回転させて複数工程の作業を行うと共に、複数工程の同時作業を行うことによって、回転軸２９を中心とした複数組のハンド４・５回転中に接木作業に必要な切断・接合など複数工程の一連の作業を順次且つそれぞれの位置で同時に行って接木作業の能率向上化を図ることができる。
【００１４】
また、子葉２ａ展開位置を基準として切断高さと切断方向を決定する子葉胚軸ストッパ３０と子葉方向安定棒３１とを穂木ハンド４に一体的に設けたことによって、穂木ハンド４に対する穂木用苗２の投入供給を容易とさせると共に、常に正確に苗位置保持させて穂木用苗２の切断精度を向上させることができる。
【００１５】
さらに、子葉３ａ展開位置を基準として切断高さと切断方向を決定する子葉胚軸ストッパ３２と子葉方向安定板３９及び苗直立支持棒３８を台木ハンド５に備えたことによって、台木ハンド５に対する台木用苗３の投入供給を容易とさせると共に、常に正確に位置保持させて台木用苗３の切断精度を向上させることができる。
【００１６】
また、穂木ハンド４及び台木ハンド５の回転でもってハンド４・５を開閉する開閉カム２４・２５を設けることによって、ハンド４・５を開閉するためのシリンダなど別途の駆動部材を用いることなく、ハンド４・５回転を利用して容易にハンド４・５を開閉させることができる。
【００１７】
さらに、穂木ハンド４及び台木ハンド５の回転でもって穂木ハンド４或いは台木ハンド５を昇降させる昇降カム２７を設けたことによって、穂木或いは台木ハンド４・５を昇降させるシリンダなどの別途の駆動部材を用いることなく、ハンド４・５の回転を利用して容易にハンド４・５の昇降を可能とさせることができる。
【００１８】
図１４乃至図１７にも示す如く、前記切断部１４の苗切断機構１３は、穂木用苗２の胚軸２ｂをＶ字状（クサビ状）に切断する左右１対のＶ字形穂木切断刃４２と、台木用苗３の胚軸３ｂの子葉３ａ展開部をＹ字状に切断するＹ字形台木切断刃４３とを備えるもので、２枚のカッタ４４をカッタホルダ４５のＶ字形苗に合わせて取り付け、カッタ４４先端のＶ字形下端を接触させた状態で蝶ネジ４６によってホルダ４５に固定させ、各カッタ４４の先端上側を先鋭部４４ａとさせたクサビ形状でＶ形の内面を略２０度に形成して、前方位置の穂木切断台４７に保持される穂木用苗２の胚軸２ｂに対し切断刃４２を前進させて、胚軸２６の略中間部を切断し、Ｖ字形切断面２ｃを形成するように構成している。
【００１９】
また、前記切断台４７は胚軸２６を案内する苗保持溝４８と、Ｖ形カッタ４４を侵入案内させるカッタ進入溝４９とを設け、保持溝４８によって穂木用苗切断時の中心ズレを補正し、カッタ４４の進入切断時には進入溝４９の案内で苗２の抵抗があっても広がることなく正確なＶ字形の切断を行うように構成している。
【００２０】
図１６，図１７に示す如く、前記台木切断刃４３は下端を接する２枚のＶ形カッタ５０と、Ｖ形カッタ５０間下側に配置させる１枚の縦切りカッタ５１とを組み合わせて専用ホルダ５２に蝶ネジ４６を介し固定させ、側面視でＶ形カッタ５０の先端上側を先鋭部５０ａに、縦切りカッタ５１の先端下側を先鋭部５１ａに形成して、側面視で切断刃４３先端部をＶ形状に形成し、Ｖ形カッタ５０の内角を略４０度に形成し、前方位置の台木切断台５３に保持される台木用苗３の胚軸３ｂに対し切断刃４３を前進させて、胚軸３ｂの子葉３ａ展開部をＹ字形に切断しＹ字形切断面３ｃを形成すると同時に生長点３ｄを除去するように構成している。
【００２１】
また、前記縦切りカッタ５１の上端はＶ形カッタ５０の下端より略０．５ｍｍ上方に突出させる状態とさせてＶ形カッタ５０の切れ残しを解消させ、また苗３に形成される苗縦切り部３ｅで穂木接合時の穂木用苗２の挿入を容易とさせると共に、縦切り部３ｅを挿入する穂木用苗２先端の逃がしとさせて穂木及び台木用苗２・３の正確な接合を可能とさせるものであり、ホルダ５２下部に固定する胚軸押え５４のカッタ溝５５によって、縦切りカッタ５１の逃げなど防止するように構成している。
【００２２】
さらに、前記切断台５３は子葉３ａの上部を押さえ込む子葉押え５６を上方に、また下方に縦切りカッタ５１の進入案内用ガイド溝５７を有する苗押え５８を備え、切断台５３には胚軸３ｂを案内する苗保持溝５９と、縦切りカッタ５１の進入溝６０とを設けると共に、子葉押え５６にはＶ形カッタ５０の案内となるカッタ進入溝６１を略内角４０度で設けている。
【００２３】
上記からも明らかなように、穂木用苗２の茎部２ｂをＶ字状に切断するＶ字形切断刃４２と、台木用苗３の子葉３ａ展開部をＹ字状に切断するＹ字形切断刃４３を設けて、穂木用苗２のＶ字形切断面２ｃと台木用苗３のＹ字形切断面３ｃを接合固定させることによって、穂木用苗２のＶ字形切断面２ｃと台木用苗３のＹ字形切断面３ｃを良好に接合させて、活着性を向上させることができる。
【００２４】
また、２枚のカッタ４４をＶ字形に組み合わせて、Ｖ字形切断刃４２を形成させたことによって、一定角度を保った穂木胚軸２ｂの正確なＶ字形切断を容易に可能とさせて、接木作業の能率向上化を図ることができる。
【００２５】
さらに、３枚のカッタ５０・５１をＹ字形に組み合わせて、Ｙ字形切断刃４３を形成させたことによって、常に形状を一定とさせた台木胚軸３ｂの正確なＹ字形切断を容易に可能とさせて、接木作業の能率向上化を図ることができる。
【００２６】
また、穂木用苗２の胚軸２ｂを保持する苗保持溝４８と、Ｖ字形切断刃４２の進入溝４９を形成する苗切断台４７を設けることによって、穂木用苗２の胚軸２ｂ中心に対し左右対称な正確なＶ字形切断を可能とさせて接木精度を向上させることができる。
【００２７】
さらに、台木用苗３の胚軸３ｂを保持する苗保持溝５９と、Ｙ字形切断刃４３の進入溝６０を形成する苗切断台５３を設けたことによって、台木用苗３の胚軸３ｂ中心に対し左右対称な正確なＹ字形切断を可能とさせて接木精度を向上させることができる。
【００２８】
図１８乃至図２０に示す如く、穂木用苗２と台木用苗３とをスリーブ６２で接合固定させる前記接合機構１５には、一定長さにスリーブ６２を切断して供給するスリーブ供給機構６３と、供給されるスリーブ６２をスリーブハンド６４により押し広げて接木苗４１に装着させるスリーブ装着機構６４と、スリーブ６２の装着時に台木用苗３の子葉３ａを掻上げる掻上げ機構６５とを備えるもので、前記供給機構６３には連続成型でリール６６に収納されたスリーブ６２をスリーブガイド６７に繰出す左右１対の送りローラ６８と、スリーブ６２の当接するストッパ６９を有する旋回部材７０と、スリーブ６２の当接による旋回部材７０の回転を検出する光電式スリーブセンサ７１と、送りローラ６８を回転させセンサ７１によるスリーブ検出時に送りローラ６８の回転を停止させる送りモータ７２と、スリーブ６２の送り停止時にスリーブ６２を一定長さ（１２ｍｍ）に切断するスリーブカッタ７３とを設け、スリーブガイド６７のガイド棒６７ａに沿って切欠き部６７ｂまでスリーブ６２が下動するときカッタ台７４を前進させてカッタ７３で一定長さにスリーブ６２を切断するように構成している。
【００２９】
また、前記スリーブ６２は接木苗４１の成長に伴い、自然脱落するためのスリット７５と、スリット７５を押し広げるための突起７６とを有して、接木苗４１の成長時には自然脱落すると共に、脱落後は数ヶ月で生分解する軟弾性のセルロースやトウモロコシなどの素材を用い、質量が軽く半透明に形成して、接合状態を外部からも容易に確認するように構成している。
【００３０】
図９、図２０に示す如く、前記スリーブ装着機構６４は、スリーブ６２の突起７６を掴んで開閉する左右フック７７ａを有するスリーブハンド７７、スリット７５と反対側のスリーブ６２外面を支えるプッシャ７８と、スリーブハンド７７を開閉させる開閉操作部７９と、スリーブハンド７７を前後進させる空圧式シリンダ８０と、プッシャ７８と前後進させる空圧式シリンダ８１と、接木苗４１の位置ズレなどを修正するストッパ８２とを備えている。
【００３１】
そして図２１に示す如く、前記供給機構６３で一定長さに切断されたスリーブに対し、フック７７ａを開いて接近させ、フック７７ａを閉じてプッシャ７８を前進させるときフック７７ａをスリーブ６２の突起７６間に挿入させ、フック７７ａを開くときスリーブ６２を押し広げて接木苗４１に前進接近させ、ハンド７７が接木苗４１位置となりフック７７ａを閉じるとき苗４１にスリーブ６２を装着させ、プッシャ７８を後退させフック７７ａをスリーブ６２から離し、フック７７ａを開いてハンド７７を接木苗４１から後退させて苗４１を解放することでスリーブ６２の装着を完了させるように構成している。なお上述実施例にあってはフック７７ａのスリーブ６２に対する挿脱時にはプッシャ７８を前後進させる構成を示したが、ハンド７７を後退或いは前進させて同様の操作を行う構成でも良い。
【００３２】
図２２に示す如く、前記掻上げ機構６５は、接木苗４１にスリーブ６２装着時に台木用苗３の子葉３ａを上方に掻上げる左右１対のローラ８３と、ローラ８３を左右方向に開閉する開閉部８４と、ローラ８３を昇降させる空圧式昇降シリンダ８５と、ローラ８３を前後進させる前後進シリンダ８６とを備え、スリーブ６２の装着時にローラ８３を接木苗４１位置まで接近させ、左右ローラ８３を閉状態で上昇させるとき、ローラ８３で子葉３ａを上方に掻上げて、子葉３ａを邪魔とさせることのない確実なスリーブ６２の装着を行うように構成している。
【００３３】
また図２３に示す如く、苗接合部１６と払出部１７間の穂木及び台木ハンド４・５の移動径路中に、接木苗４１の全長を一定長さに調整切断する調整カッタ８７をカッタ台８８を介し配設させて、払出直前で台木用苗３の胚軸３ｂを水平切断させ一定高さの接木苗４１を生産して苗品質を向上させるように構成している。
【００３４】
上記からも明らかなように、穂木用苗２のＶ字形切断面２ｃと台木用苗３のＹ字形切断面３ｃとを接合固定させる接ぎ具であるスリーブ６２を設けると共に、接木及び台木用苗２・３に接ぎ具６２装着時台木用苗３の子葉３ａを掻上げる掻上げ部材であるローラ８３を設けたことによって、スリーブ６２装着時に台木用苗３の子葉３ａを邪魔とさせることのない正確な装着作業を可能とさせて、スリーブ６２の装着作業の効率向上化を図ることができる。
【００３５】
また、円筒形のスリーブ６２にスリット７５を形成させると共に、スリーブ６２をスリット７５により押し広げる拡張部材であるスリーブハンド７７を設けたことによって、スリーブ６２を常に一定巾に押し広げて接木苗４１に確実に装着可能とさせて、スリーブ６２の装着性を向上させることができる。
【００３６】
さらに、スリーブ６２により接合させた穂木用苗２と台木用苗３の接木苗４１を一定長さに調整切断する調整切断機構である調整カッタ８７を設けたことによって、スリーブ６２装着後の接木苗４１の一定高さの調整が払出直前に容易に行われて苗品質を向上させることができる。
【００３７】
また、穂木用苗２のＶ字形切断面２ｃと台木用苗３のＹ字形切断面３ｃとを接合固定さえるスリーブ６２を設けると共に、スリーブ６２に生分解可能な材料を用いたことによって、接木苗４１の成長に伴ってスリーブ６２が自然脱落しても、生分解によって自然消滅してスリーブ６２の回収など不要とさせて作業の効率化を図ることができる。
【００３８】
さらに、スリーブ６２はスリット７５を有する略円筒形状に形成させたことによって、スリーブ６２の拡張を容易とさせると共に、育苗潅水時に水溜まりができウイルスが発生するなどの不都合を防止して接木苗４１の成長を助長させることができる。
【００３９】
また、スリット７５にはスリーブ６２を押し広げる突起７６を形成させたことによって、別途脱着部材などを用いて突起７６を掴んでのスリーブ６２の容易な押し広げを可能とさせてスリーブ６２の確実な装着を可能とさせることができる。
【００４０】
以上のように半自動の接木作業を行って、穂木子葉２ａと台木子葉３ａの展開方向が直交状態（十字状）となるように確実に接木して、日陰を発生せず日照を均一とさせて接木苗２・３の成長を促進させるものであり、図２４に示す如く作業座席１に最接近する穂木及び台木ハンド４・５が苗投入部１２に位置するとき、前処理で断根した穂木及び台木用苗２・３をそれぞれ各ハンド４・５に投入して挟持させ、挟持後は切断・接合・払出の一連の接木作業を自動で行うもので、前記モータ９の駆動によって苗２・３を挟持するハンド４・５が苗切断部１４まで移動したとき、穂木切断刃４２によって穂木用苗２の胚軸３ｂがＶ字形に、台木切断刃４３によって台木用苗３の胚軸３ｂがＹ字形に切断され、次にハンド４・５が苗接合部１６まで移動するときには、台木用苗３を上昇させて穂木用苗２を挿入すると共に、穂木用苗２を抱き込んだ台木用苗３の外側をスリーブ６２で固定して接木苗４１を形成させ、ハンド４・５が払出部１７まで移動するときハンド４・５を解放して接木苗４１を放出或いは取出すものである。
【００４１】
【発明の効果】
以上実施例から明らかなように本発明は、穂木用苗２と台木用苗３とを接合固定させる接ぎ具６２に生分解可能な材料を用いると共に、接ぎ具６２はスリット７５を有する略円筒形状に形成させたものであるから、接木苗４１の成長に伴って接ぎ具６２が自然脱落しても、生分解によって自然消滅して接ぎ具６２の回収など不要とさせて作業の効率向上化を図ることができ、また接ぎ具６２の拡張を容易とさせて、育苗潅水時に水溜まりができウイルスが発生するなどの不都合を防止して接木苗の成長を助長させることができるものである。
【００４２】
また、スリット７５には接ぎ具６２を押し広げる突起７６を形成させたものであるから、別途脱着部材などによる突起７６を掴んでの接ぎ具６２の容易な押し広げを可能とさせて、接ぎ具６２の確実な装着を可能とさせることができるものである。
【図面の簡単な説明】
【図１】全体の側面図。
【図２】全体の正面図。
【図３】全体の平面図。
【図４】作業部の平面説明図。
【図５】ハンド部の側面説明図。
【図６】カム部の平面説明図。
【図７】カムの平面図。
【図８】穂木及び台木ハンドの説明図。
【図９】スリーブハンドの説明図。
【図１０】開閉カム部の説明図。
【図１１】昇降カム部の説明図。
【図１２】穂木ハンド部の説明図。
【図１３】台木ハンド部の説明図。
【図１４】Ｖ字形切断刃の説明図。
【図１５】穂木切断台の説明図。
【図１６】Ｙ字形切断刃の説明図。
【図１７】台木切断台の説明図。
【図１８】スリーブ供給部の説明図。
【図１９】スリーブの装着説明図。
【図２０】スリーブハンド部の説明図。
【図２１】スリーブの装着工程説明図。
【図２２】掻上げ機構の説明図。
【図２３】調整カッタ部の説明図。
【図２４】接木作業順序を示す説明図。
【符号の説明】
２ 穂木用苗
２ｃ 切断面
３ 台木用苗
３ｃ 切断面
６２ スリーブ（接ぎ具）
７５ スリット
７６ 突起[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a grafting device that cuts stems of rootstock seedlings and spikelet seedlings, and joins and fixes the cut rootstock stems and spikelet stems at the cut locations.
[0002]
[Prior art]
There is a technique using an elastic material made of rubber or a synthetic resin for a cylindrical holder for fixing a graft portion of a stock and a scion (see, for example, Patent Document 1).
[0003]
[Patent Document 1] Japanese Patent No. 2561755
[Problems to be solved by the invention]
In the above-mentioned prior art, when the grafted seedling grows and the stem becomes thicker, the holder is detached spontaneously and the labor for removing the holder can be omitted, but since the holder is semi-permanent, it is necessary to collect it each time. There is trouble such as having.
[0005]
[Means for Solving the Problems]
Therefore, the present invention uses a biodegradable material to join and fix the seedlings for scion and rootstock, and the grafting tool is formed in a substantially cylindrical shape having slits, and as the grafted seedling grows, Even if the ligature falls off naturally, it will disappear naturally due to biodegradation, making it unnecessary to collect the ligature and improve work efficiency.Also, the ligature can be expanded easily, and water can be collected when raising seedlings. It promotes the growth of grafted seedlings by preventing inconveniences such as the occurrence of viruses.
[0006]
In addition, the slit is formed with a projection that pushes and spreads the joint, allowing the joint to be easily pushed and spread by separately grasping the protrusion by a detachable member, etc., and enabling the secure attachment of the joint. It is.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall side view, FIG. 2 is a front view thereof, and FIG. 3 is a plan view thereof. A pair of upper and lower scion hands 4 and a scrub hand 5 for holding the scion seedlings 2 and the stock seedlings 3 of the solanaceae seedlings, and the scion and the stock hand 4.5 are rotated. There are provided upper and lower rotating disks 6,7, a rod shaft 8 for connecting the upper and lower rotating disks 6,7, and a motor 9 for intermittently rotating the rotating disks 6,7. Then, as shown in the plan view of FIG. 4, the worker 10 who inserts the seedlings 2.3 into the scion and the stocker hands 4.5 circulates counterclockwise with respect to the seedling insertion part 12 in front of the work seat 11. A seedling cutting part 14 having a seedling cutting mechanism 13 at a position where the plates 6 and 7 are rotated by 90 degrees, and a seedling bonding part 16 having a seedling joining mechanism 15 at a position further rotating the seedling cutting part 90 by 90 degrees. Further, a position rotated by 90 degrees from the seedling joint portion 16 is provided in the dispensing portion 17 of the grafted seedling, and the scion and rootstock hand are processed in the four steps of the input portion 12, the cutting portion 14, the joining portion 16, and the dispensing portion 17. The motor 9 is configured to perform intermittent driving for stopping the rotation of 4.5.
[0008]
As shown in FIGS. 4 to 6, the tips of the scion and rootstock hands 4.5, which constitute one pair of upper and lower parts, project outward from the outer periphery of the disk 6, and the four pairs are formed into the disks 6, 7 at 90-degree intervals. The mounting hand 4 is directly attached to the upper disk 6, and the stock hand 5 is supported to be vertically movable via the rod shaft 8 below the height of the holding hand 4 by a certain height. ing. As shown in FIGS. 6, 8, 10 and 11, the scion and rootstock hands 4 and 5 are swingably connected to the fixed hand unit 18 via the opening and closing fulcrum shaft 19. An opening / closing roller 21 provided at one end of the swinging hand unit 20 by the rotation of the disks 6 and 7 is provided with an opening / closing cam 24 on the outer surface of the fixed drums 22 and 23 for the cylindrical scion and rootstock. When abutting against the spring 25, the swing hand unit 20 is swung against the spring 26 to open the scion and the stock hand 4.
[0009]
As shown in FIG. 11, the upper end surface of the rootstock fixed drum 23 is provided on an elevating cam 27, and an elevating roller 28 installed below the fixed hand part 18 of the rootstock hand 5 is rolled on the elevating cam 27. When the root hand 5 is rotated integrally with the disks 6 and 7 about the rotation shaft 29, the root hand 5 is raised and lowered by the lifting cam 27. The hog hand 4 may be moved up and down by the elevating cam 27.
[0010]
As shown in FIGS. 8 and 12, the cotyledon hypocotyl stopper 30 and the cotyledon direction stable which determine the cutting height and the cutting direction in the fixed hand portion 18 of the scion hand 4 based on the deployed position of the cotyledon 2 a of the seedling 2 for scion. The rod 31 is provided integrally, and when the two leaves are expanded in the left-right direction and inserted between the hand parts 18 and 20 while holding the seedling 2 for hand scions, the hypocotyl 26 is brought into contact with the stopper 30 and the cotyledon 2a It is configured so that the grip is performed by pulling down the developing unit until it reaches the stopper 30.
[0011]
As shown in FIG. 13, the rootstock hand 5 includes a cotyledon hypocotyl stopper 32 and a cotyledon direction stabilizing plate 39 for determining a cutting height and a cutting direction with reference to a deployed position of the cotyledon 3a of the rootstock 3. When holding the seedling 3 in the hand and inserting the two leaves between the hands 18 and 20 in the front-rear direction perpendicular to the scion cotyledons 2a, hit the hypocotyl 3b against the stopper 32 and pull down the cotyledon 3a until the developing portion contacts the stopper 32. At the moment when each of the hands 4 and 5 starts to rotate in the counterclockwise direction by operating a work switch 35 provided on the side of the loading work table 34 of the grafting device 1, the fixed hand portion 18 moves the lower part of the hypocotyl. An upright support rod 38 for pressing the upper part of the hypocotyl via the ball plunger 36 and the spring 37 at the same time as the pressing is provided, so that the seedling 3 can be gripped well. Further, when the rootstock hand 5 rotates, the plunger 36 gets over the fixed hand portion 18 and the support rod 38 returns to the initial position, and the direction of the two leaves is corrected by the rubber suspension 40 arranged on the rotation direction side, so that the rootstock seedlings are removed. The holding posture of No. 3 is optimized.
[0012]
As shown in FIGS. 6 and 7, the opening / closing cams 24 and 25 are formed with convex cam surfaces 24 a and 25 a between the dispensing portion 17 and the loading portion 12 of the fixed drums 22 and 23, respectively. Opening is provided between the dispensing section 17 and the input section 12, so that the introduction of the seedlings 2 and 3 and the dispensing (release) of the grafted seedling 41 are performed.
[0013]
As is clear from the above, in the grafting apparatus for cutting and joining and fixing the hypocotyl 2b, which is the stem of the seedling 2 for scion, and the hypocotyl 2b, which is the stem of the seedling 3 for rootstock, A plurality of sets of upper and lower two stages of the scion hand 4 and the stock hand 5 that respectively hold the seedling 2 and the root raising seedling 3 are arranged around a rotation axis 29 which is a vertical axis. By rotating the hands 4 and 5 to perform a plurality of steps of work and simultaneously performing a plurality of steps of work, cutting and cutting necessary for grafting work during rotation of a plurality of sets of hands 4.5 around the rotating shaft 29 is performed. A series of operations of a plurality of steps such as joining can be performed sequentially and simultaneously at each position to improve the efficiency of grafting operation.
[0014]
In addition, since the cotyledon hypocotyl stopper 30 and the cotyledon direction stabilizing bar 31 for determining the cutting height and the cutting direction based on the cotyledon 2a deployment position are integrally provided on the scion hand 4, the scion with respect to the scion hand 4 is provided. In addition to facilitating the feeding and supply of the seedlings 2, the cutting accuracy of the scionling seedlings 2 can be improved by always keeping the seedling positions accurately.
[0015]
Furthermore, by providing the cotyledon hypocotyl stopper 32, the cotyledon direction stabilizing plate 39, and the seedling upright support rod 38, which determine the cutting height and cutting direction based on the cotyledon 3a deployment position, on the stock hand 5, In addition to facilitating the feeding and supply of the rootstock seedlings 3, it is possible to improve the cutting accuracy of the rootstock seedlings 3 by always keeping the position accurately.
[0016]
Further, by providing opening and closing cams 24 and 25 for opening and closing the hands 4.5 by rotating the scion hand 4 and the stock hand 5, it is possible to use a separate driving member such as a cylinder for opening and closing the hands 4.5. In addition, the hands 4.5 can be easily opened and closed using the rotation of the hands 4.5.
[0017]
Further, by providing the elevating cam 27 for raising and lowering the scion hand 4 or the scaffold hand 5 by rotating the scion hand 4 and the scaffold hand 5, a cylinder or the like for elevating the scion or the scaffold hand 4.5 is provided. It is possible to easily raise and lower the hands 4 and 5 using the rotation of the hands 4 and 5 without using a separate driving member.
[0018]
As shown in FIGS. 14 to 17, the seedling cutting mechanism 13 of the cutting section 14 is a pair of left and right V-shaped cuttings for cutting the hypocotyl 2b of the seedlings 2 for cutting in a V shape (wedge shape). A blade 42 and a Y-shaped rootstock cutting blade 43 for cutting the cotyledon 3a development portion of the hypocotyl 3b of the rootstock 3 into a Y-shape. The two cutters 44 are V-shaped seedlings of a cutter holder 45. The cutter 44 is fixed to the holder 45 with a thumbscrew 46 in a state where the V-shaped lower end of the tip of the cutter 44 is in contact with the V-shaped inner surface in a wedge shape in which the upper end of each cutter 44 is a sharpened portion 44a. The cutting blade 42 is advanced to the hypocotyl 2b of the scion seedling 2 formed at 20 degrees and held by the scion cutting table 47 at the front position, and cuts a substantially middle portion of the hypocotyl 26, It is configured to form a V-shaped cut surface 2c.
[0019]
Further, the cutting table 47 is provided with a seedling holding groove 48 for guiding the hypocotyl 26 and a cutter entry groove 49 for guiding the V-shaped cutter 44 to intrude. When the cutter 44 enters and cuts off, the guide groove 49 guides the seedlings 2 to perform accurate V-shaped cutting without spreading even if there is resistance.
[0020]
As shown in FIGS. 16 and 17, the stock cutting blade 43 is a combination of two V-shaped cutters 50, the lower ends of which are in contact with each other, and one vertically-cut cutter 51 disposed below the V-shaped cutter 50. The upper end of the V-shaped cutter 50 is fixed to the sharpened portion 50a and the lower end of the longitudinally cut cutter 51 is formed to the sharpened portion 51a in a side view. The tip portion is formed in a V shape, the inner angle of the V-shaped cutter 50 is formed to approximately 40 degrees, and the cutting blade 43 is attached to the hypocotyl 3b of the seedling 3 for the rootstock held by the rootstock cutting table 53 at the front position. By moving the cotyledon 3a forward, the developed part of the cotyledon 3a of the hypocotyl 3b is cut into a Y-shape to form a Y-shaped cut surface 3c and at the same time remove the growing point 3d.
[0021]
Further, the upper end of the vertical cutter 51 is made to protrude approximately 0.5 mm above the lower end of the V-shaped cutter 50 so as to eliminate the uncut portion of the V-shaped cutter 50 and to cut the seedling vertically formed in the seedling 3. The section 3e facilitates the insertion of the scion seedlings 2 at the time of joining the scion, and allows the tip of the scion seedling 2 into which the longitudinally cut section 3e is inserted to escape so that the scion and rootstock seedlings 2.3 can be removed. This enables accurate joining, and is configured to prevent the longitudinal cutter 51 from escaping by the cutter groove 55 of the hypocotyl retainer 54 fixed to the lower portion of the holder 52.
[0022]
Further, the cutting table 53 is provided with a seedling presser 58 having a guide groove 57 for guiding the vertical cutter 51 to enter, above the cotyledon presser 56 for pressing the upper part of the cotyledon 3a. Of the seedling holding groove 59 and an entry groove 60 for the vertical cutting cutter 51, and a cutter entry groove 61 serving as a guide for the V-shaped cutter 50 is provided in the cotyledon presser 56 at a substantially inner angle of 40 degrees.
[0023]
As is apparent from the above description, a V-shaped cutting blade 42 for cutting the stem 2b of the seedling 2 for cutting into a V-shape and a Y-shape for cutting the developed portion of the cotyledon 3a of the seedling 3 for cutting into a Y-shape. A V-shaped cut surface 2c of the scion seedling 2 is fixed to the V-shaped cut surface 2c of the scion seedling 2 by joining and fixing the V-shaped cut surface 2c of the scion seedling 2 and the Y-shaped cut surface 3c of the rootstock seedling 3. The Y-shaped cut surface 3c of the tree seedling 3 can be satisfactorily joined to improve energetic properties.
[0024]
Further, by combining the two cutters 44 in a V-shape to form the V-shaped cutting blade 42, it is possible to easily perform accurate V-shape cutting of the scion hypocotyl 2b with a fixed angle, The efficiency of grafting work can be improved.
[0025]
Furthermore, by combining the three cutters 50 and 51 into a Y-shape to form the Y-shape cutting blade 43, accurate Y-shape cutting of the rootstock hypocotyl 3b having a constant shape can be easily performed. Thus, the efficiency of grafting work can be improved.
[0026]
In addition, by providing a seedling holding groove 48 for holding the hypocotyl 2b of the scion seedling 2 and a seedling cutting table 47 for forming the entry groove 49 of the V-shaped cutting blade 42, the hypocotyl 2b of the scion seedling 2 is provided. Accurate grafting accuracy can be improved by enabling accurate V-shaped cutting symmetrical with respect to the center.
[0027]
Furthermore, by providing a seedling holding groove 59 for holding the hypocotyl 3b of the rootstock seedling 3 and a seedling cutting table 53 for forming the entry groove 60 of the Y-shaped cutting blade 43, the hypocotyl of the rootstock seedling 3 is provided. Accurate grafting can be improved by enabling accurate Y-shaped cutting symmetrical with respect to the center of 3b.
[0028]
As shown in FIG. 18 to FIG. 20, the joining mechanism 15 for joining and fixing the seedlings 2 for the scion and the seedlings 3 for the rootstock with the sleeve 62 is provided with a sleeve supply mechanism that cuts the sleeve 62 to a fixed length and supplies the cut. 63, a sleeve mounting mechanism 64 that spreads the supplied sleeve 62 by the sleeve hand 64 and mounts the sleeve 62 on the grafted seedling 41, and a scraping mechanism 65 that scrapes the cotyledons 3 a of the rootstock seedling 3 when the sleeve 62 is mounted. The supply mechanism 63 includes a pair of left and right feed rollers 68 for feeding a sleeve 62 housed in a reel 66 by continuous molding to a sleeve guide 67, and a turning member 70 having a stopper 69 with which the sleeve 62 abuts. , A photoelectric sleeve sensor 71 for detecting the rotation of the turning member 70 due to the contact of the sleeve 62, and a sleeve detection by the sensor 71 by rotating the feed roller 68. A feed motor 72 for stopping the rotation of the feed roller 68 and a sleeve cutter 73 for cutting the sleeve 62 to a fixed length (12 mm) when the feed of the sleeve 62 is stopped are provided, and cut along the guide rod 67 a of the sleeve guide 67. When the sleeve 62 moves down to the notch 67b, the cutter table 74 is advanced and the cutter 73 cuts the sleeve 62 to a predetermined length.
[0029]
Further, the sleeve 62 has a slit 75 for dropping off naturally as the grafted seedling 41 grows, and a projection 76 for pushing and expanding the slit 75. After that, using a material such as soft elastic cellulose or corn which biodegrades in a few months, it is formed to be light and translucent in mass, so that the joined state can be easily checked from the outside.
[0030]
As shown in FIGS. 9 and 20, the sleeve mounting mechanism 64 includes a sleeve hand 77 having left and right hooks 77a that open and close by gripping a projection 76 of the sleeve 62, a pusher 78 for supporting the outer surface of the sleeve 62 on the side opposite to the slit 75, An opening / closing operation section 79 for opening and closing the sleeve hand 77, a pneumatic cylinder 80 for moving the sleeve hand 77 back and forth, a pneumatic cylinder 81 for moving the pusher 78 back and forth, and a stopper 82 for correcting a displacement of the grafted seedling 41 and the like. It has.
[0031]
As shown in FIG. 21, the hook 77a is opened to approach the sleeve cut to a predetermined length by the supply mechanism 63, and when the hook 77a is closed to push the pusher 78 forward, the hook 77a When the hook 77a is opened, the sleeve 62 is pushed out and expanded to approach the grafted seedling 41, and the hand 77 comes to the grafted seedling 41 position, and when the hook 77a is closed, the sleeve 62 is attached to the seedling 41 and the pusher 78 is retracted. Then, the hook 77a is separated from the sleeve 62, the hook 77a is opened, the hand 77 is retracted from the grafted seedling 41, and the seedling 41 is released, thereby completing the mounting of the sleeve 62. In the above-described embodiment, the pusher 78 is moved forward and backward when the hook 77a is inserted into and removed from the sleeve 62. However, the same operation may be performed by moving the hand 77 backward or forward.
[0032]
As shown in FIG. 22, when the sleeve 62 is attached to the grafted seedling 41, the scraping mechanism 65 opens and closes the pair of rollers 83 that lifts the cotyledons 3a of the rootstock seedlings 3 upward, and the rollers 83 in the horizontal direction. An opening / closing unit 84, a pneumatic lifting / lowering cylinder 85 for raising / lowering the roller 83, and a forward / backward moving cylinder 86 for moving the roller 83 back and forth are provided. When the sleeve 62 is mounted, the roller 83 is brought close to the grafted seedling 41 position. When the is lifted in the closed state, the cotyledons 3a are lifted up by the rollers 83, and the sleeve 62 is securely mounted without disturbing the cotyledons 3a.
[0033]
Further, as shown in FIG. 23, an adjusting cutter 87 for adjusting and cutting the entire length of the grafted seedling 41 to a predetermined length is provided on the moving path of the scion and the stocker hands 4.5 between the seedling joining part 16 and the dispensing part 17. Arranged via a stand 88, the hypocotyl 3b of the seedling 3 for rootstock is cut horizontally just before dispensing to produce a grafted seedling 41 of a certain height to improve seedling quality.
[0034]
As is apparent from the above description, the sleeve 62 is provided as a joining tool for joining and fixing the V-shaped cut surface 2c of the seedling 2 for the scion and the Y-shaped cut surface 3c of the seedling 3 for the rootstock. The provision of the rollers 83, which are members for raising the cotyledons 3a of the rootstock seedlings 3 when the connecting tools 62 are attached to the seedlings 2, 3, disturbs the cotyledons 3a of the rootstock seedlings 3 when the sleeve 62 is attached. It is possible to perform an accurate mounting operation without causing the sleeve 62 to be mounted more efficiently.
[0035]
In addition, a slit 75 is formed in the cylindrical sleeve 62, and a sleeve hand 77, which is an expansion member for expanding the sleeve 62 by the slit 75, is provided. The sleeve 62 can be reliably mounted, and the mounting of the sleeve 62 can be improved.
[0036]
Further, by providing an adjusting cutter 87 which is an adjusting cutting mechanism for adjusting and cutting the grafted seedling 41 of the scion seedling 2 and the rootstock seedling 3 joined to each other by the sleeve 62 to a fixed length, Adjustment of the fixed height of the grafted seedling 41 can be easily performed immediately before dispensing, and the seedling quality can be improved.
[0037]
Also, by providing the sleeve 62 for joining and fixing the V-shaped cut surface 2c of the seedling 2 for the scion and the Y-shaped cut surface 3c of the seedling 3 for the rootstock, and by using a biodegradable material for the sleeve 62, Even if the sleeve 62 falls off naturally as the grafted seedling 41 grows, the sleeve 62 naturally disappears due to biodegradation, and the collection of the sleeve 62 becomes unnecessary, so that work efficiency can be improved.
[0038]
Further, since the sleeve 62 is formed in a substantially cylindrical shape having a slit 75, the expansion of the sleeve 62 is facilitated, and at the same time, the inconvenience such as the formation of water and the generation of virus during irrigation of the seedling is prevented, so that the grafted seedling 41 can be formed. Can encourage growth.
[0039]
Further, the projections 76 for pushing and spreading the sleeve 62 are formed in the slit 75, so that the sleeve 62 can be easily pushed and spread by grasping the projections 76 by using a detachable member or the like, so that the sleeve 62 can be surely spread. Mounting can be enabled.
[0040]
The semi-automatic grafting work is performed as described above, and the graft is securely grafted so that the deployment directions of the scion cotyledons 2a and the cotyledons 3a are orthogonal (cross-shaped), and the sunshine is uniform without shading. 24 to promote the growth of the grafted seedlings 2 and 3. When the scion and the stocking hands 4.5 that are closest to the work seat 1 are located in the seedling input section 12, as shown in FIG. The rooted shoots and rootstock seedlings 2 and 3 are put into the respective hands 4 and 5 to be clamped, and after clamping, a series of cutting, joining and dispensing grafting operations are automatically performed. When the hands 4.5 holding the seedlings 2.3 are moved to the seedling cutting part 14 by driving, the hypocotyl 3b of the seedling 2 for scion is formed into a V shape by the cutting blade 42, and The hypocotyl 3b of the tree seedling 3 is cut into a Y-shape, and then the hands 4.5 are connected to the seedling junction 16 by cutting. When moving, the rootstock seedlings 3 are raised to insert the scion seedlings 2, and the outside of the rootstock seedlings 3 embracing the scion seedlings 2 is fixed with a sleeve 62 to transfer the grafted seedling 41. When the hands 4.5 are moved to the payout section 17, the hands 4.5 are released to release or take out the grafted seedling 41.
[0041]
【The invention's effect】
As is clear from the above embodiments, the present invention uses a biodegradable material for the joint 62 for joining and fixing the seedling 2 for the scion and the seedling 3 for the rootstock, and the joint 62 has a substantially slit 75. Since it is formed in a cylindrical shape, even if the ligature 62 falls off spontaneously with the growth of the grafted seedling 41, it naturally disappears due to biodegradation and the collection of the ligature 62 becomes unnecessary, thereby improving the work efficiency. In addition, it is possible to facilitate the expansion of the grafting tool 62, to prevent inconveniences such as water pools and virus generation at the time of raising seedlings, and to promote the growth of grafted seedlings.
[0042]
Further, since the slits 75 are formed with the projections 76 for pushing and spreading the joint 62, the joints 62 can be easily pushed and spread by separately gripping the projections 76 by a detachable member or the like. 62 can be securely mounted.
[Brief description of the drawings]
FIG. 1 is an overall side view.
FIG. 2 is an overall front view.
FIG. 3 is an overall plan view.
FIG. 4 is an explanatory plan view of a working unit.
FIG. 5 is an explanatory side view of a hand unit.
FIG. 6 is an explanatory plan view of a cam portion.
FIG. 7 is a plan view of a cam.
FIG. 8 is an explanatory view of a scion and a stock hand.
FIG. 9 is an explanatory view of a sleeve hand.
FIG. 10 is an explanatory diagram of an opening / closing cam unit.
FIG. 11 is an explanatory diagram of a lifting cam unit.
FIG. 12 is an explanatory diagram of a hand hand unit.
FIG. 13 is an explanatory diagram of a stock hand unit.
FIG. 14 is an explanatory view of a V-shaped cutting blade.
FIG. 15 is an explanatory view of a scion cutting table.
FIG. 16 is an explanatory view of a Y-shaped cutting blade.
FIG. 17 is an explanatory view of a stock cutting table.
FIG. 18 is an explanatory diagram of a sleeve supply unit.
FIG. 19 is an explanatory view of mounting a sleeve.
FIG. 20 is an explanatory diagram of a sleeve hand unit.
FIG. 21 is an explanatory diagram of a mounting process of a sleeve.
FIG. 22 is an explanatory view of a scraping mechanism.
FIG. 23 is an explanatory diagram of an adjustment cutter unit.
FIG. 24 is an explanatory diagram showing a grafting work order.
[Explanation of symbols]
2 Seedlings for cuttings 2c Cutting surface 3 Seedlings for rootstock 3c Cutting surface 62 Sleeve (joint)
75 Slit 76 Projection
