【０００１】
【産業上の利用分野】
本発明は、育苗箱並列敷設装置に関するものである。
【０００２】
【従来技術】
従来公知の、特開平８−１７２８１９号公報には、載置場に設けた前後方向のレール上を走行する走行車体と、該走行車体の左右いずれか一側に設けられ複数の育苗箱を並列させ得る左右長さを有し有底の平面視長四角形状の走行枠体と、該走行枠体に設けられ育苗箱を載置搬送する搬送ベルトと、前記走行車体に設けられ前記走行枠体に一個ずつ育苗箱を供給し得る育苗箱供給部と、搬送ベルト上の整列した育苗箱を整列状態を保持して押出す押出装置とからなる育苗箱並列敷設装置について記載されている。
【０００３】
【発明が解決しようとする課題】
前記公知のものは、レールの左右一側だけに育苗箱を敷設させるので、作業効率が低いという課題がある。即ち、一側に育苗箱を敷設した後に、装置全体を他側に移動させる必要があり、狭いビニールハウス内では移動させるスペースが無駄になるばかりでなく、進行方向が反対になるので、育苗箱並列敷設装置に対する育苗箱の補給作業も面倒になり、全体として、作業は容易でなく、効率も低いのである。
また、搬送ベルト上の整列した育苗箱を整列状態を保持して押出す構成のため、搬送ベルトおよび押出装置の下方には育苗箱を敷設できないという課題があり、載置スペースが無駄になり、広い作業スペースを要し、作業効率が低い。
【０００４】
【発明の目的】
レールの左右両側の育苗箱の並列、載置スペースの有効利用、作業スペースの縮小化。
【０００５】
【課題を解決するための手段】
本発明は、載置場１に設けた前後方向のレール２上に前後移動可能に走行枠体４を設置し、走行枠体４に左右方向移動自在に設けた載置移動枠７を前記レール２の左右いずれか一側に待機させ、走行枠体４の上方に設けた前記レール２の左右幅より間隔Ｌだけ大に形成した育苗箱供給部２２を前記間隔Ｌだけ前記レール２の左右いずれか他側に寄せ、この状態で、前記載置移動枠７の他側が前記育苗箱供給部２２の下方に臨んだとき一個ずつ育苗箱Ａを供給して載置移動枠７上の全面に育苗箱Ａを供給すると、前記育苗箱供給部２２を間隔Ｌだけ一側側に戻し、次に、前記載置移動枠７上の育苗箱Ａをストッパー４３により堰き止めて載置移動枠７に対して不動状態にしてから載置移動枠７を一側に向けて反転移動させて載置移動枠７上の育苗箱Ａを前記レール２の他側の載置場１に載置し、同時に載置移動枠７の一側を前記育苗箱供給部２２の下方に臨ぞませて新規に育苗箱Ａを供給し、該載置移動枠７上の育苗箱Ａを前記レール２の一側側の載置場１に載置し、同時に載置移動枠７の他側を前記育苗箱供給部２２の下方に臨ぞませて新規に育苗箱Ａを供給してレール２の左右両側に育苗箱Ａを敷設すると、育苗箱一箱分載置移動枠７を前進するように構成した育苗箱並列敷設方法としたものである。
本発明は、載置場１に設けた前後方向のレール２上を走行し該レール２の左右両側に複数の育苗箱Ａを並列させ得る左右長さを有し底抜けの平面視長四角形状の走行枠体４と、前記レール２の片側に敷設する複数の育苗箱Ａを載置可能であって、前記レール２の左側と右側の走行枠体４を交互に往復移動自在に該走行枠体４に設けた載置移動枠７と、前記走行枠体４の中央に設けられ下方に位置する前記載置移動枠７に一個ずつ育苗箱Ａを供給し得る育苗箱供給部２２と、該育苗箱供給部２２の左右両側に設けられ前記載置移動枠７は通過するが該載置移動枠７上の育苗箱Ａは通過させないストッパー４３とからなり、前記育苗箱供給部２２は前記レール２の左右幅より間隔Ｌだけ幅広に形成し、前記育苗箱供給部２２は前記走行枠体４に対して左右に前記間隔Ｌだけ移動可能に設けた育苗箱並列敷設装置としたものである。
本発明は、前記載置移動枠７は、前記レール２の一方側より他方側に移動する際、前記育苗箱供給部２２により既に供給を受けた育苗箱Ａを前記レール２の一方側の載置場１に降ろしながら、開いた載置移動枠７上のスペースに他方側の載置場１に降ろす新規な育苗箱Ａの供給を受け、前記載置移動枠７は前記レール２の左側と右側の走行枠体４を交互に往復移動するとき育苗箱Ａの供給と載置とを行うように構成した育苗箱並列敷設装置としたものである。
本発明は、前記載置移動枠７は育苗箱Ａの短い辺が対峙して載置し得るように構成した育苗箱並列敷設装置としたものである。
本発明は、前記載置移動枠７は一個の育苗箱Ａの長さだけ、間欠移動するように構成した育苗箱並列敷設装置としたものである。
本発明は、前記走行枠体４は前後一対の車体横枠５を有し、前記育苗箱供給部２２には各車体横枠５上を走行する案内走行ローラー４９を設け、前記育苗箱供給部２２は前記走行枠体４に対して左右に前記間隔Ｌだけ移動可能に構成した育苗箱並列敷設装置としたものである。
本発明は、前記走行枠体４には前記育苗箱供給部２２が走行枠体４に対して左右に前記間隔Ｌだけ移動すると停止させる移動停止用部材５３を設けた育苗箱並列敷設装置としたものである。
本発明は、前記育苗箱供給部２２に設けたストッパー４３は、育苗箱供給部２２の一方側側板２４と他方側側板２５の下部に、前記載置移動枠７が育苗箱Ａを移送する往路では育苗箱Ａの端面が当接すると回動して退避するが、育苗箱Ａを降ろす復路では回動せずに育苗箱Ａの端面に当接するように軸４５により軸着した育苗箱並列敷設装置としたものである。
本発明は、載置場１に設けた前後方向のレール２上を前後移動可能の走行枠体４にモータにより左右方向に移動する載置移動枠７と、前記レール２の上方の走行枠体４に設けられ一個ずつ育苗箱Ａを供給し得る育苗箱供給部２２と、該育苗箱供給部２２の左右両側に設けられ載置移動枠７は通過させるが該載置移動枠７上の育苗箱Ａは通過させないストッパー４３とを有し、前記育苗箱供給部２２は前記レール２の左右幅より間隔Ｌだけ幅広に形成し、前記育苗箱供給部２２は前記走行枠体４に対して左右に前記間隔Ｌだけ移動可能に設け、前記育苗箱供給部２２を前記間隔Ｌだけ前記載置移動枠７の移動方向に寄せ、前記載置移動枠７が前記育苗箱供給部２２の下方に臨むと一個の育苗箱Ａを供給し、更に載置移動枠７を間欠移動させて所定枚数の育苗箱Ａが供給されると、前記育苗箱供給部２２を前記間隔Ｌだけ前記載置移動枠７の反転移動方向に寄せ、次に、載置移動枠７が反転移動させると、ストッパー４３により堰き止められた一端の育苗箱Ａが落下し、他端の載置移動枠７に育苗箱Ａを供給し、育苗箱Ａの堰き止めによる落下と新規な育苗箱Ａの供給を繰り返して、前記レール２の左右両側に育苗箱Ａを敷設すると、前記走行枠体４は前進するように構成した育苗箱並列敷設装置としたものである。
【０００６】
【実施例】
本発明はの一実施例を図により説明すると、１は育苗箱Ａを並べる載置場であり、所定の広さを有していればよく、室内外を問わない。載置場１にはレール２を敷設し、レール２上には育苗箱並列装置３の走行枠体４を走行可能に載置する。 このレール２は、任意の間隔で敷設されるが、載置場１の面積を有効利用するため、通常、略３００mm程度の間隔で敷設されている。一方、前記育苗箱Ａは、縦略６００mm，横略３００mmであり、後述するように、育苗箱Ａは横向きに敷設するので、前記レール２は育苗箱Ａの横向きの左右幅より所定間隔だけ小に形成されることになる。
前記走行枠体４は、レール２の左右両側に複数育苗箱Ａを敷設させる敷設スペースの上方に位置するように車体横枠５と車体側部枠６により平面視長四角形状に形成し、前記車体横枠５および車体側部枠６により包囲された枠内は底抜け形状に形成する。
前記走行枠体４には、該走行枠体４に対して長さ方向（左右方向）に移動する載置移動枠７を設ける。載置移動枠７は、該載置移動枠７の上面に複数の育苗箱Ａを摺動自在に載置可能に構成する。
【０００７】
前記左右の車体側部枠６には、上下一対の角形状の案内レール１１、１１の両端部を固定し、前記上下の案内レール１１の間に移動ローラー１２を嵌合させる。移動ローラー１２は両側面に前記案内レール１１の側面に係合する鍔部１３を形成して外れないようにしている（図８）。移動ローラー１２は取付軸１４に回転のみ自在に取付ける。移動ローラー１２は前記載置移動枠７の前後一対の移動横枠体１５に左右方向に所定間隔を置いて複数設ける。
前後の移動横枠体１５には前後方向の移動縦枠体１６を左右方向に所定間隔を置いて複数設けて前後の移動横枠体１５を連結固定し、移動縦枠体１６の上面には前記移動縦枠体１６と平行の支持棒１７を設けている。支持棒１７は育苗箱Ａの底面に摺接し、接触面積を減少させるものである。
前記移動横枠体１５の下面にはラック（実施例ではチエン）１８を全長に亘って設け（図３、図４）、ラック１８に走行枠体４側に設けた正逆転自在のピニオン１９を噛み合わせ、ピニオン１９は枠移動用モータ２０の軸２１に固定する。枠移動用モータ２０は前記レール２の上方に位置する走行枠体４の中央部の車体横枠５に固定する。
【０００８】
しかして、前記走行枠体４の中央部となる前記レール２の上方位置には、一個（一枚）ずつ育苗箱Ａを供給し得る育苗箱供給部２２を設ける。育苗箱供給部２２は、側面視前後対称に形成し、２３は育苗箱供給部２２の供給部フレームであり、供給部フレーム２３の一方側側板２４と他方側側板２５のそれぞれに前側外板２６および前側内板２７と後側外板２６と後側内板２７とをそれぞれ固定して、前後の内板２７、２７’と一方側側板２４と他方側側板２５により平面視一個の育苗箱Ａを収容する面積を有する育苗箱供給空間２８を形成する。実施例の育苗箱供給空間２８の容積は、一列に載置する育苗箱Ａの数に合わせ、４〜１０個の育苗箱Ａを収容し得る大きさに形成しているが、もっと大きく形成してもよい。前記前側内板２７、２７’は、その中間部より上方に至るに従い外側（前後側）に開くように傾斜させ、育苗箱Ａを供給する際の案内傾斜部２９に形成する。
【０００９】
一方側側板２４と他方側側板２５の間には左右方向の前後一対の取付軸３０を軸装し、取付軸３０には育苗箱Ａを支持する支持部材３１の基部を固定し、支持部材３１は前記前側内板２７、２７’より前記育苗箱供給空間２８内に略水平突出する支持位置Ｓと育苗箱供給空間２８より退避する退避位置Ｔとの間回動する。そして、支持部材３１は、前記載置移動枠７上に育苗箱Ａを載置してから支持位置に回動するときに、下から２段目の育苗箱Ａの鍔部３２に係合して支持位置Ｓまで持ち上げて支持するように構成する。
前記取付軸３０には回動アーム３３の基部を固定し、回動アーム３３の先端にローラ３４を取付け、ローラ３４は前記取付軸３０と平行な回転軸３５に固定したカム板３６の周縁に当接させる。回転軸３５は前記一方側側板２４と他方側側板２５に軸装する。３７は前記カム板３６の周縁にローラ３４を常時当接させるように付勢するバネである。
【００１０】
前記他方側側板２５より内側に突き出ているそれぞれの回転軸３５にはベベルギヤ３８を固定し、ベベルギヤ３８には供給用モータ３９により回転する前後方向の伝動軸４０に固定のベベルギヤ４１を噛み合わせる。
しかして、前記育苗箱供給部２２の左右両側の走行枠体４は、複数の育苗箱Ａを待機させるスペースを有する待機部４２に構成し、前記載置移動枠７は、一方の待機部４２の長さに形成し、中央のレール２を挟んで左右両側に育苗箱Ａを並列させるように構成する。
即ち、載置移動枠７を左右いずれか一方の待機部４２から他方の待機部４２に移動させるときに、育苗箱供給部２２から育苗箱Ａの供給を受け、同時に、載置移動枠７上の育苗箱Ａを載置移動枠７より落下させ、作業効率を向上させる。
【００１１】
しかして、育苗箱供給部２２には移動する載置移動枠７に対して育苗箱Ａの移動を停止させるストッパー４３を設ける。即ち、載置移動枠７上に全長に亘って育苗箱Ａを載置し、この状態で、載置移動枠７上の育苗箱Ａをストッパー４３より不動状態にしてから、載置移動枠７を移動させると、端側の載置移動枠７上の育苗箱Ａが順に落下して並列させるのである。
ストッパー４３は載置移動枠７の上方の前記一方側側板２４と他方側側板２５の下方に載置移動枠７は通過するが育苗箱Ａは通過できないように設ける。実施例では、一方側側板２４および他方側側板２５の下部側面にブラケット４４を固定し、ブラケット４４にストッパー４３の上部を軸４５により軸着し、前記載置移動枠７が育苗箱Ａを移送する往路では育苗箱Ａの端面が当接すると上方回動して退避するが、育苗箱Ａを降ろす復路ではストッパー４３の内面側が一方側側板２４および他方側側板２５の下部側面に当接して回動せず、このストッパー４３に育苗箱Ａの端面が当接して載置移動枠７に対して不動状態にして堰き止めるように構成する（図１１）。また、育苗箱Ａの形状によっては、前記ストッパー４３の幅を大にして育苗箱Ａの側壁に載って退避するように構成する（図１２）。
【００１２】
この場合、前記レール２は育苗箱Ａの横向きの左右幅より所定間隔狭く形成され、育苗箱供給部２２は横向き育苗箱Ａを収容する育苗箱供給空間２８を有しているから、育苗箱供給部２２は前記レール２の左右幅より間隔Ｌだけ大に形成されることになり、育苗箱供給部２２を走行枠体４の中央に固定させて載置移動枠７に育苗箱Ａを供給すると、育苗箱供給部２２の左右のストッパー４３はレール２より間隔Ｌの半分の距離だけ離れたところに位置することになって、レール２の近傍に載置できず、載置スペースを有効利用できない。
本発明では、前記育苗箱供給部２２は走行枠体４に対して左右方向に移動可能に設け、レール２の可及的近傍位置にも育苗箱Ａを載置できるようにしている。育苗箱供給部２２は、図５に示したように、前記取付軸３０の下方にそれぞれ底板４６を設け、底板４６には切り起こしにより軸受部４７と窓孔４８を同時形成し、窓孔４８は前記走行枠体４の前後の車体横枠５と同一間隔で形成して車体横枠５の上方に位置させ、前記窓孔４８に案内走行ローラー４９を嵌め、案内走行ローラー４９の回転軸５０を軸受部４７に軸装して取付ける。案内走行ローラー４９はそれぞれ車体横枠５の上面に嵌合させ、育苗箱供給部２２は走行枠体４の車体横枠５上に載置して左右方向に移動可能に設けられる。
【００１３】
育苗箱供給部２２は載置移動枠７の移動方向側に寄せ、図１４に示したように、図１４イでは初期状態で中央に位置させているが、図１４ロではレール２から間隔Ｌだけ右側に寄せ、図１４チでは間隔Ｌだけ左側に寄せ、ストッパー４３を右側のレール２の略上方に位置させ、右側のレール２の近傍に育苗箱Ａを載置する。
したがって、レール２より前記間隔Ｌだけ左右方向の外側に位置した前記走行枠体４の車体横枠５の上面には、前記育苗箱供給部２２の移動を停止させる移動停止用部材５３を設ける。移動停止用部材５３は一方側側板２４および他方側側板２５の下部側面が当接するように設ける。
この場合、前記育苗箱供給部２２は、一方側または他方側に寄った位置でのみ育苗箱Ａを供給し、その中間位置では供給しないように構成する。
また、載置移動枠７の移動は、間欠的に１箱分移動するように構成している。
しかして、載置移動枠７の左右両側には、載置移動枠７より載置面（地面、床面等）に降ろすときに、落下の衝撃を緩和させる衝撃緩和用回動部材５４を設ける。衝撃緩和用回動部材５４は前記移動横枠体１５の端部に設けた突片５５に軸５６により軸着する。前後の衝撃緩和用回動部材５４は連結杆５７により連結し、衝撃緩和用回動部材５４と移動横枠体１５の間にバネ５８を設ける。
【００１４】
バネ５８は軸５６を死点として支持位置と降ろし位置とに衝撃緩和用回動部材５４を保持するように構成し、衝撃緩和用回動部材５４は育苗箱Ａが載るとその荷重で下方回動し、連結杆５７が前記突片５５に当接して下方回動を停止させる。
このときバネ５８は、前記軸軸５６より下方に位置するいわゆる死点越えして保持し、載置移動枠７の移動により前記走行枠体４側に設けた突起５９に衝撃緩和用回動部材５４の下面が当接することによって元の位置に戻ると、バネ５８は軸軸５６より上方に位置して保持する。
そのため、衝撃緩和用回動部材５４の下面は先端に至るに従い高くなるように傾斜させ、突起５９と衝撃緩和用回動部材５４との接触を円滑にしている。
６１は走行枠体４の車輪、６２は走行用モータ、６３は前記走行車輪６１に設けた歯車、６４は走行用モータの回転軸に設けた歯車、６５は歯車６３と歯車６４の間に掛け回したチエン、６６は支持転輪、６７は前記レール２上またはその近傍に設けた次に並べる育苗箱Ａを段積させた段積育苗箱Ａを載せた載置台である。
しかして、前記走行枠体４には、左右の車体側部枠６を基準に育苗箱Ａ１個分より大きい間隔で、前後方向の取付杆６８を設け、取付杆６８には中央側には回動しないが、外側には回動するように、間隔規制ストッパー６９の上部を軸７０により軸着する。間隔規制ストッパー６９は取付杆６８より下方に突出して育苗箱Ａの端面に当接して、育苗箱Ａを載置移動枠７に対して不動にする。
【００１５】
【作用】
本発明は、前記走行枠体４の中央に育苗箱供給部２２を設け、育苗箱供給部２２の左右両側の走行枠体４に複数の育苗箱Ａを載置した載置移動枠７を待機させる待機部４２を設け、育苗箱供給部２２の左右両側には載置移動枠７は通過するが該載置移動枠７上の育苗箱Ａは通過させないストッパー４３を設け、前記載置移動枠７は一方の待機部４２と他方の待機部４２とを交互に往復移動するように構成しているから、育苗箱供給部２２に段積育苗箱Ａを供給し、この育苗箱Ａを育苗箱供給部２２により一枚ずつ移動する載置移動枠７に供給し、載置移動枠７上の全面に載ると、一番内側の育苗箱Ａをストッパー４３により停止させて載置移動枠７を反対側の待機部４２に向けて移動させ、端の育苗箱Ａを順に載置し、レール２の側部に並列状態に育苗箱Ａを敷設する。
【００１６】
この場合、育苗箱供給部２２とレール２の関係は、育苗箱供給部２２は平面視一個の育苗箱Ａを収容する面積を有する育苗箱供給空間２８を形成しており、また、前記レール２は育苗箱Ａの横向きの左右幅より間隔Ｌだけ小に形成されているから、まず、図１４イに示したように、育苗箱供給部２２を、載置移動枠７が右側に移動するので間隔Ｌだけ右側に寄せ（図１４ロ）、所定位置になると育苗箱供給部２２の他方側側板２５の下部側面が移動停止用部材５３に当接して横移動が停止する。
この状態で、左側に載置移動枠７が位置しているので、枠移動用モータ２０を正転させて載置移動枠７を右側の待機部４２に向けて移動させ、載置移動枠７の右側の育苗箱Ａ１箱分の載置スペースが育苗箱供給部２２の下方に位置すると、枠移動用モータ２０を停止させ、次に、次に供給用モータ３２に通電して育苗箱供給部２２により一枚だけ育苗箱Ａを供給する（図１４ロ）。
【００１７】
再び、枠移動用モータ２０を正転させて載置移動枠７を右側の待機部４２に向けて１箱分移動させると（図１４ハ）、載置移動枠７の１箱分の載置スペースが育苗箱供給部２２の下方に位置するので、枠移動用モータ２０を停止させ、次に供給用モータ３２に通電して右側に位置する育苗箱供給部２２により育苗箱Ａを供給し（図１４ハ）、これを反復すると（図１４ニ、ホ）、載置移動枠７全長に亘って育苗箱Ａが載置されて右側の待機部４２に位置する（図１４ヘ）。
しかして、この状態で、まず、育苗箱供給部２２を左側に移動させると、一番内側の育苗箱Ａの上面に位置していた退避状態のストッパー４３が、育苗箱Ａの端面を過ぎると起立状態に回動して右側のレール２の略上に位置する（図１４ト）。
次に、枠移動用モータ２０を逆転させて、載置移動枠７の左端に育苗箱Ａ１箱分の載置スペースが開くと、この載置スペースは左側に寄っている育苗箱供給部２２の下方に位置して、枠移動用モータ２０を停止させ、次に、次に供給用モータ３２に通電して育苗箱供給部２２により一枚だけ育苗箱Ａを供給する（図１４チ）。
【００１８】
このとき、ストッパー４３より右側にある育苗箱Ａの左端面は、ストッパー４３に当接しているから、載置移動枠７が左側に移動すると、載置移動枠７のみが移動し、他方側側板２５に設けたストッパー４３に内側の育苗箱Ａが当接して不動状態になり、このストッパー４３により堰き止められた育苗箱Ａに隣接する育苗箱Ａが当接して全体の育苗箱Ａが堰き止められて載置移動枠７に対して不動状態になり、左側に１箱分の載置スペースが開くまで移動すると、右側の１箱の育苗箱Ａが落下して載置される（図１４チ）。
再び、載置移動枠７を１箱分左側に移動させると、右側の育苗箱Ａが落下し（図１４リ）、左側の載置移動枠７のスペースが育苗箱供給部２２の下方に臨むので、育苗箱Ａを供給し（図１４リ）、これを反復すると（図１４ヌ、ル、オ、ワ）、載置移動枠７を左側に移動させて育苗箱Ａを供給しながら、レール２の右側の載置場１に育苗箱Ａを載置する。
【００１９】
次に、図示は省略するが、育苗箱供給部２２を右側に移動させ、載置移動枠７を右側に向けて移動させると、１列目の育苗箱並列作業が終わり、右側に移動した載置移動枠７上には次の育苗箱Ａが供給され、この状態で、走行枠体４を前進させ、前記作動を反復することにより、２列目以降の育苗箱並列作業を行い、中央のレール２の左右両側に育苗箱Ａを並列させることができる。
したがって、載置移動枠７が一方の待機部４２から他方の待機部４２に移動する際、一方の待機部４２側の載置移動枠７上の育苗箱Ａを降ろし、他方の待機部４２側の載置移動枠７上に育苗箱Ａを供給するから、作業効率を向上させる、即ち、作業初期の一列目に限っては、載置移動枠７上に育苗箱Ａを供給するために載置移動枠７を移動させる必要があるが、二列目のときには既に載置移動枠７上に育苗箱Ａを供給済となって、すこぶる作業効率を向上させる。
また、載置移動枠７の移動は、間欠的に１箱分移動するように構成しているから、載置移動枠７から載置場１への載置と、載置移動枠７への育苗箱Ａの供給を同時にするとき、円滑かつ確実にできる。即ち、育苗箱供給部２２から載置移動枠７に育苗箱Ａを供給するとき、載置移動枠７は停止しているので、載置移動枠７に対して育苗箱Ａがずれるのを防止し、床に載置するのも円滑になる。
【００２０】
しかして、育苗箱供給部２２は走行枠体４に対して左右方向に移動自在に設け、かつ、レール２の幅より大なる育苗箱Ａの幅との差である間隔Ｌだけ左右に移動するように軸４５を設けているから、育苗箱供給部２２を左右に移動させると、育苗箱供給部２２に設けた左右のストッパー４３のそれぞれは左右のレール２の略上に位置することになり、載置移動枠７上の一番内側の育苗箱Ａはレール２の近傍に載置できる。
したがって、前記育苗箱供給部２２は、一枚ずつ育苗箱Ａを供給でき、その左右両側に復路にて育苗箱Ａを堰き止めるストッパー４３を有していれば、前記のように、育苗箱供給部２２を左右に移動させると、載置移動枠７上の一番内側の育苗箱Ａはレール２の近傍に載置できる。
【００２１】
しかして、前記育苗箱供給部２２は取付軸３０の下方にそれぞれ設けた底板４６に窓孔４８を形成し、窓孔４８は走行枠体４の車体横枠５上に位置させ、窓孔４８に案内走行ローラー４９を嵌めているから、案内走行ローラー４９を車体横枠５の上面に嵌合させて育苗箱供給部２２を載置すると、育苗箱供給部２２は走行枠体４に対して左右方向に移動可能になる。実施例では、手動操作により育苗箱供給部２２を左右に移動位置切替しているが、モータを使用してもよい。
しかして、育苗箱供給部２２の構成は要件ではないが、その作用について説明すると、育苗箱供給部２２は支持部材３１により育苗箱供給空間２８内の段積育苗箱Ａを支持しているから、所定位置に前記載置移動枠７が位置すると、供給用モータ３９に通電して、伝動軸伝動軸４０を回転させ、伝動軸４０の回転がベベルギヤ４１、ベベルギヤ３８を介して回転軸３５に伝達し、回転軸３５はカム板３６を回転させる。
【００２２】
カム板３６はローラ３４を上下に移動させ、これにより回動アーム３３が回動して取付軸３０を正逆回転させ、取付軸３０の正逆回転により育苗箱Ａを支持している支持部材３１は、支持位置Ｓから退避位置Ｔに回動し、育苗箱供給空間２８内の育苗箱Ａ全部が載置移動枠７上に落下し、次に、退避位置Ｔから支持位置Ｓに支持部材３１が戻るとき、最下段の育苗箱Ａは載置移動枠７上に残し、下から２段目の育苗箱Ａの鍔部３２に３１が係合して支持位置Ｓまで持ち上げて支持する。
したがって、前後一対の支持部材３１により一個ずつ育苗箱Ａを載置移動枠７に供給できるので、構造が簡単であり、故障が少なく、コスト削減にも貢献する。即ち、下から２段目の育苗箱Ａを支持した状態で、最下段の育苗箱Ａの支持を外すという上下二組の支持供給機構では複雑になるが、本願の支持部材３１は駆動機構も簡単にできる。
【００２３】
しかして、載置移動枠７の左右両側には、前後一対の縦板形状の衝撃緩和用回動部材５４を軸軸５６により回動自在に設け、前記衝撃緩和用回動部材５４は育苗箱Ａを移送する往路では育苗箱Ａを支持し、育苗箱Ａを降ろす復路では下方回動するように構成しているから、中央側に向けて移動する復路では、床面等と干渉せず、万が一凸部に当たったときは上方回動して逃げることが可能であり、上方回動しないで床面等と干渉する惧れがある往路では上方に位置する。特に、圃場面に根切り用のネットを敷設し、該ネット上に育苗箱Ａを載置するとき、落下の衝撃を緩和すると共に、ネットに引っ掛かるのを防止する。
また、衝撃緩和用回動部材５４は、衝撃緩和用回動部材５４と載置移動枠７との間に軸軸５６を死点として支持位置と降ろし位置とに保持するバネ５８を設けているので、支持位置では確実に育苗箱Ａを支持し、降ろし位置では、不用意に上方回動をするのを防止する。
【００２４】
即ち、衝撃緩和用回動部材５４は、育苗箱Ａを降ろすとき育苗箱Ａが載った荷重で下方回動し、前記走行枠体４に設けた突起５９に復路最終位置に戻ると当接して支持位置に復帰するようにしているから、衝撃緩和用回動部材５４は載置移動枠７の移動により育苗箱Ａが載るとその荷重で軸軸５６中心に下方回動し、連結杆５７が突片５５に当接すると、下方回動が停止し、このとき衝撃緩和用回動部材５４と載置移動枠７の間に吊設したバネ５８は軸軸５６より下方に位置するいわゆる死点越えして衝撃緩和用回動部材５４を保持し、育苗箱Ａは傾斜している衝撃緩和用回動部材５４上を摺動して、載置される。したがって、落下の衝撃を緩和するから、育苗箱Ａ内の土や種子の飛散を防止する。
そして、衝撃緩和用回動部材５４は、載置移動枠７が中央側に向けて復路を移動すると、走行枠体４側に設けた突起５９に衝撃緩和用回動部材５４の下面が当接することによって自動的に元の位置に戻り、外側に載置移動枠７が移動するときは上方位置に位置して床面等と干渉しない。
【００２５】
しかして、載置移動枠７上には、土を供給した育苗箱Ａを載せるので、土が飛散するが、載置移動枠７に設けた移動ローラー１２は両側に鍔部１３を形成し、走行枠体４には上下一対の角軸形状の案内レール１１、１１を設け、移動ローラー１２は上下の案内レール１１、１１間に挟持しているから、下側の案内レール１１上に落ちた土は、左右側より落下し、土が堆積するのを防止する。即ち、チャンネル形状のレール内に円柱形状のローラーを嵌合させると、ローラーの周面がレールに当接して荷重の支持および案内を適切にするが、一旦レール内に入った土の除去は大変であるが、本願は、上下一対の角軸形状の案内レール１１、１１で、周囲を開放しているので、土の堆積を防止する共に、鍔部１３を設けた移動ローラー１２としているので、チャンネル形状のレールと同様に、正確に案内できる。
また、載置移動枠７の前後幅は任意に構成できるが、特に、育苗箱Ａは横向きに並列するように構成しているから、ハウス内の育苗では、左右側の育苗箱Ａの成育が遅れることがあっても、その部分を取り除いて田植機に供給すればよいので、苗の無駄を発生させない。即ち、育苗箱Ａを縦向きに並列させると、育苗箱の外側の縦列の苗が成育不良になり、この苗マットを縦長方向にして田植機に供給するので、この端の不良苗を取り除いて供給すると、欠株となってしまうので不良苗を取り除くことはできず、一箱分の苗が無駄になる。この点、横向きに並列させて敷設すると、その部分だけ除去しても、田植機に供給できるのである。
しかして、通常は、ストッパー４３により最内側の育苗箱Ａをストップさせて載置移動枠７だけ移動させるので、載置される育苗箱Ａは隙間なく並列させるが（なお、図１４、１５、１６は、作図の都合で隣接する育苗箱Ａの間に隙間がある。）、走行枠体４には左右の車体側部枠６を基準に育苗箱Ａ１個分の間隔より大きい間隔で前後方向の取付杆６８を設け、取付杆６８には中央側には回動しないが、外側には回動するように間隔規制ストッパー６９の上部を軸７０により軸着しているから、間隔規制ストッパー６９を下方に位置させておくと、載置移動枠７が往路移動中は育苗箱Ａの先端が間隔規制ストッパー６９に当接すると上方回動するが、載置移動枠７が復路移動すると、載置移動枠７は通過するが、育苗箱Ａの端面が間隔規制ストッパー６９に当接すると間隔規制ストッパー６９は取付杆６８の側面に当接して回動しないので、この位置で育苗箱Ａは不動状態になって、圃場に載置される。したがって、各育苗箱Ａは、各間隔規制ストッパー６９に当接して圃場に降ろされるから、各育苗箱Ａの間に隙間を設けて並列させることができる。また、各間隔規制ストッパー６９のうち選択して降ろすと、全育苗箱Ａは間隔規制ストッパー６９の下方をくぐって往路移動し、復路で所望の育苗箱Ａのみが間隔規制ストッパー６９に当接するので、所望間隔を空けて載置できる。
【００２６】
【発明の効果】
本発明は、載置場１に設けた前後方向のレール２上に前後移動可能に走行枠体４を設置し、走行枠体４に左右方向移動自在に設けた載置移動枠７を前記レール２の左右いずれか一側に待機させ、走行枠体４の上方に設けた前記レール２の左右幅より間隔Ｌだけ大に形成した育苗箱供給部２２を前記間隔Ｌだけ前記レール２の左右いずれか他側に寄せ、この状態で、前記載置移動枠７の他側が前記育苗箱供給部２２の下方に臨んだとき一個ずつ育苗箱Ａを供給して載置移動枠７上の全面に育苗箱Ａを供給すると、前記育苗箱供給部２２を間隔Ｌだけ一側側に戻し、次に、前記載置移動枠７上の育苗箱Ａをストッパー４３により堰き止めて載置移動枠７に対して不動状態にしてから載置移動枠７を一側に向けて反転移動させて載置移動枠７上の育苗箱Ａを前記レール２の他側の載置場１に載置し、同時に載置移動枠７の一側を前記育苗箱供給部２２の下方に臨ぞませて新規に育苗箱Ａを供給し、該載置移動枠７上の育苗箱Ａを前記レール２の一側側の載置場１に載置し、同時に載置移動枠７の他側を前記育苗箱供給部２２の下方に臨ぞませて新規に育苗箱Ａを供給してレール２の左右両側に育苗箱Ａを敷設すると、育苗箱一箱分載置移動枠７を前進するように構成した育苗箱並列敷設方法としたものであるから、全長に亘って載置した育苗箱Ａをストッパー４３より不動状態にしてから載置移動枠７を引き抜いて並列させることができるので、走行枠体４と載置移動枠７の下方に育苗箱を載置でき、載置スペースを有効利用でき、レール２の左右両側に育苗箱Ａを交互に供給するので、供給が容易・確実で育苗箱Ａが重なったり、間隔が空いたりすることがなく、制御も容易にでき、狭い作業スペースでも作業をでき、また、走行枠体４の停止と前進を反復して並列させるので、走行枠体４の進行方向を反対にすることもなく、育苗箱並列敷設装置に対する育苗箱の補給作業も容易にでき、全体としての作業を容易にできる効果を奏する。
また、載置移動枠７を左右交互に移動させるとき、供給と落下を同時に行えるので、作業効率を向上させ、走行枠体４を前進させるときには既に育苗箱Ａを供給しているので、一列に育苗箱Ａを供給するのに一往復載置移動枠７を移動させればよく、この点でも作業効率を向上させることができる。
また、前記育苗箱供給部２２はレール２の左右幅より間隔Ｌだけ大に形成し、この育苗箱供給部２２を前記間隔Ｌだけ前記レール２の左右いずれか他側に寄せてから作動させるので、中央に一か所で育苗箱を供給する方法でありながら、レール２の近傍に育苗箱を載置でき、載置スペースの有効利用できる効果を奏する。
本発明は、載置場１に設けた前後方向のレール２上を走行し該レール２の左右両側に複数の育苗箱Ａを並列させ得る左右長さを有し底抜けの平面視長四角形状の走行枠体４と、前記レール２の片側に敷設する複数の育苗箱Ａを載置可能であって、前記レール２の左側と右側の走行枠体４を交互に往復移動自在に該走行枠体４に設けた載置移動枠７と、前記走行枠体４の中央に設けられ下方に位置する前記載置移動枠７に一個ずつ育苗箱Ａを供給し得る育苗箱供給部２２と、該育苗箱供給部２２の左右両側に設けられ前記載置移動枠７は通過するが該載置移動枠７上の育苗箱Ａは通過させないストッパー４３とからなり、前記育苗箱供給部２２は前記レール２の左右幅より間隔Ｌだけ幅広に形成し、前記育苗箱供給部２２は前記走行枠体４に対して左右に前記間隔Ｌだけ移動可能に設けた育苗箱並列敷設装置としたから、前記方法を実施するのに、最も簡易な構成で達成でき、作業効率の向上および載置スペースを有効利用でき、前記育苗箱供給部２２は前記レール２の左右幅より間隔Ｌだけ幅広に形成し、前記育苗箱供給部２２は前記走行枠体４に対して左右に間隔Ｌだけ移動可能に設けた育苗箱並列敷設装置としたから、中央に一か所レール２の幅より大なる育苗箱供給部２２を設けた構成でありながら、レール２の近傍に育苗箱を載置でき、一つの育苗箱供給部２２という装置の構成の簡素化と、載置スペースの有効利用とを両立できる効果を奏する。
本発明は、前記載置移動枠７は、前記レール２の一方側より他方側に移動する際、前記育苗箱供給部２２により既に供給を受けた育苗箱Ａを前記レール２の一方側の載置場１に降ろしながら、開いた載置移動枠７上のスペースに他方側の載置場１に降ろす新規な育苗箱Ａの供給を受け、前記載置移動枠７は前記レール２の左側と右側の走行枠体４を交互に往復移動するとき育苗箱Ａの供給と載置とを行うように構成した育苗箱並列敷設装置としたから、レール２の左側と右側の走行枠体４に育苗箱Ａを交互に待機させてから落下させ、中央のレール２の左右両側に育苗箱Ａを一度（走行枠体４の方向変換等をしない状態）に並列させることができ、スペース効率を向上させることができる効果を奏する。
本発明は、前記載置移動枠７は育苗箱Ａの短い辺が対峙して載置し得るように構成した育苗箱並列敷設装置としたから、特に、ハウス内の育苗で左右側の育苗箱Ａの成育が遅れることがあっても、その部分を取り除いて田植機に供給すればよいので、苗の無駄を発生させないという効果を奏する。
本発明は、前記載置移動枠７は一個の育苗箱Ａの長さだけ、間欠移動するように構成した育苗箱並列敷設装置としたから、育苗箱供給部２２における供給が確実になり、育苗箱Ａが重なったり、間隔が空いたりすることがなく、美麗に敷設できる。
本発明は、前記走行枠体４は前後一対の車体横枠５を有し、前記育苗箱供給部２２には各車体横枠５上を走行する案内走行ローラー４９を設け、前記育苗箱供給部２２は前記走行枠体４に対して左右に前記間隔Ｌだけ移動可能に構成した育苗箱並列敷設装置としたから、簡単な構成で、育苗箱供給部２２を左右移動させ、作動を確実にしてコストを低くする。
本発明は、前記走行枠体４には前記育苗箱供給部２２が走行枠体４に対して左右に前記間隔Ｌだけ移動すると停止させる移動停止用部材５３を設けた育苗箱並列敷設装置としたから、育苗箱供給部２２の位置決めが容易確実であるので、育苗箱Ａが重なったり、間隔が空いたりすることがなく、確実に供給できるという効果を奏する。
本発明は、前記育苗箱供給部２２に設けたストッパー４３は、育苗箱供給部２２の一方側側板２４と他方側側板２５の下部に、前記載置移動枠７が育苗箱Ａを移送する往路では育苗箱Ａの端面が当接すると回動して退避するが、育苗箱Ａを降ろす復路では回動せずに育苗箱Ａの端面に当接するように軸４５により軸着した育苗箱並列敷設装置としたから、ストッパー４３の位置が左右に移動する構成でありながら、確実に作用させる効果を奏する。
本発明は、載置場１に設けた前後方向のレール２上を前後移動可能の走行枠体４にモータにより左右方向に移動する載置移動枠７と、前記レール２の上方の走行枠体４に設けられ一個ずつ育苗箱Ａを供給し得る育苗箱供給部２２と、該育苗箱供給部２２の左右両側に設けられ載置移動枠７は通過させるが該載置移動枠７上の育苗箱Ａは通過させないストッパー４３とを有し、前記育苗箱供給部２２は前記レール２の左右幅より間隔Ｌだけ幅広に形成し、前記育苗箱供給部２２は前記走行枠体４に対して左右に前記間隔Ｌだけ移動可能に設け、前記育苗箱供給部２２を前記間隔Ｌだけ前記載置移動枠７の移動方向に寄せ、前記載置移動枠７が前記育苗箱供給部２２の下方に臨むと一個の育苗箱Ａを供給し、更に載置移動枠７を間欠移動させて所定枚数の育苗箱Ａが供給されると、前記育苗箱供給部２２を前記間隔Ｌだけ前記載置移動枠７の反転移動方向に寄せ、次に、載置移動枠７が反転移動させると、ストッパー４３により堰き止められた一端の育苗箱Ａが落下し、他端の載置移動枠７に育苗箱Ａを供給し、育苗箱Ａの堰き止めによる落下と新規な育苗箱Ａの供給を繰り返して、前記レール２の左右両側に育苗箱Ａを敷設すると、前記走行枠体４は前進するように構成した育苗箱並列敷設装置としたから、育苗箱Ａの自動機械化が容易であり、育苗箱並列敷設を容易にできるという効果を奏する。
【図面の簡単な説明】
【図１】 育苗箱並列装置の斜視図。
【図２】 同概略背面図。
【図３】 同走行枠体および載置移動枠の概略縦断側面図。
【図４】 走行枠体および載置移動枠の一部平面図。
【図５】 育苗箱供給部の平面図。
【図６】 走行枠体および載置移動枠の一部斜視図。
【図７】 案内レールと移動ローラーの背面図。
【図８】 同側面図。
【図９】 供給部の縦断側面図。
【図１０】 同回転伝達機構の斜視図。
【図１１】 ストッパーの斜視図。
【図１２】 ストッパーの第２実施例図。
【図１３】 衝撃緩和用回動部材の側面図。
【図１４】 正面から見た並列状態説明図。
【図１５】 正面から見た衝撃緩和用回動部材の作用状態説明図。
【図１６】 平面から見た並列状態説明図。
【図１７】 間隔規制ストッパーの正面図。
【図１８】 同斜視図。
【符号の説明】
１…載置場、２…レール、３…育苗箱並列装置、４…走行枠体、５…前後枠、６…側部枠、７…載置移動枠、１２…移動ローラー、１３…鍔部、１４…取付軸、１５…移動横枠体、１６…移動縦枠体、１７…支持棒、１８…ラック、１９…ピニオン、２０…枠移動用モータ、２１…軸、２２…育苗箱供給部、２３…供給部フレーム、２４…一方側側板、２５…他方側側板、２６…前側外板、２７…前側内板２７、２８…育苗箱供給空間、２９…案内傾斜部、３０…取付軸、３１…支持部材、３３…回動アーム、３４…ローラ、３５…回転軸、３６…カム板、３８…ベベルギヤ、３９…左供給用モータ、４０…伝動軸、４１…ベベルギヤ、４２…待機部、４３…ストッパー、４４…ブラケット、４５…軸、４６…底板、４７…軸受部、４８…窓孔、４９…案内走行ローラー、５０…回転軸、５４…衝撃緩和用回動部材、５３…移動停止用部材、５５…突片、５６…軸、５７…連結杆、５８…バネ、５９…突起、６１…車輪、６８…取付杆、６９…間隔規制ストッパー、７０…軸。[0001]
[Industrial application fields]
The present invention relates to a seedling box parallel laying apparatus.
[0002]
[Prior art]
Japanese Laid-Open Patent Publication No. 8-172919 discloses a conventionally known traveling vehicle that travels on a rail in the front-rear direction provided at a mounting site, and a plurality of seedling boxes provided on either the left or right side of the traveling vehicle. A traveling frame body having a rectangular shape in a plan view with a bottom length in plan view, a conveying belt provided on the traveling frame body for carrying a seedling box, and a traveling belt body provided on the traveling vehicle body. A seedling box parallel laying device is described that includes a seedling box supply unit that can supply seedling boxes one by one and an extrusion device that extrudes the aligned seedling boxes on the conveyor belt while maintaining the aligned state.
[0003]
[Problems to be solved by the invention]
The known device has a problem that work efficiency is low because a seedling box is laid only on the left and right sides of the rail. That is, after laying a seedling box on one side, it is necessary to move the entire apparatus to the other side, and not only is the space moved in a narrow plastic house wasted, but the direction of travel is opposite, so the seedling box The work of replenishing the seedling boxes to the parallel laying apparatus is also troublesome, and as a whole, the work is not easy and the efficiency is low.
In addition, because of the configuration in which the aligned nursery boxes on the conveyor belt are extruded while maintaining the aligned state, there is a problem that the nursery box cannot be laid under the conveyor belt and the extrusion device, and the placement space is wasted, Large work space is required, and work efficiency is low.
[0004]
OBJECT OF THE INVENTION
Parallel seedling boxes on the left and right sides of the rail, effective use of placement space, and reduction of work space.
[0005]
[Means for Solving the Problems]
In the present invention, a traveling frame body 4 is installed on a rail 2 in the front-rear direction provided on the mounting site 1 so as to be movable back and forth, and a mounting movement frame 7 provided on the traveling frame body 4 so as to be movable in the left-right direction is disposed on the rail 2. The nursery box supply part 22 formed on the left or right side of the rail 2 and formed larger by the interval L than the left and right width of the rail 2 provided above the traveling frame 4 is either left or right of the rail 2 by the interval L. When the other side of the placement moving frame 7 faces the lower side of the seedling box supply unit 22 in this state, the seedling box A is supplied one by one and the seedling box is placed on the entire surface of the placement moving frame 7. When A is supplied, the seedling box supply unit 22 is returned to one side by the interval L, and then the seedling box A on the placement moving frame 7 is dammed up by the stopper 43 with respect to the placement moving frame 7. After the immobilization state, the placement movement frame 7 is reversed and moved toward one side, and the growth on the placement movement frame 7 is increased. The box A is placed on the placement place 1 on the other side of the rail 2, and at the same time, one side of the placement moving frame 7 is placed below the seedling box supply unit 22 to supply a new seedling box A, The seedling box A on the placement movement frame 7 is placed on the placement place 1 on one side of the rail 2, and at the same time, the other side of the placement movement frame 7 faces below the seedling box supply unit 22. When the seedling box A is newly supplied and the seedling box A is laid on both the left and right sides of the rail 2, the seedling box parallel laying method is configured so that the placement moving frame 7 is moved forward by one box. .
The present invention travels on a rail 2 in the front-rear direction provided on the mounting site 1 and has a left-right length that allows a plurality of seedling boxes A to be juxtaposed on the left and right sides of the rail 2 and has a rectangular shape in plan view in a bottom view. A frame 4 and a plurality of seedling boxes A laid on one side of the rail 2 can be placed, and the left and right traveling frame 4 of the rail 2 can be moved back and forth alternately. A placement movement frame 7 provided in the above, a seedling box supply unit 22 capable of supplying the seedling box A one by one to the placement movement frame 7 provided in the center of the traveling frame 4 and positioned below, and the seedling box It is provided with stoppers 43 that are provided on the left and right sides of the supply unit 22 and pass through the placement movement frame 7 but do not allow the seedling box A on the placement movement frame 7 to pass. The seedling box supply unit 22 is formed wider than the left and right widths by an interval L. Only the distance L to the left and right Te is obtained by a movably disposed with nursery box parallel laying device.
In the present invention, when the placement frame 7 moves from one side of the rail 2 to the other side, the seedling box A already supplied by the seedling box supply unit 22 is placed on one side of the rail 2. While being lowered to the placement place 1, the space on the open placement movement frame 7 is supplied with a new seedling box A to be lowered to the other placement place 1, and the placement movement frame 7 is arranged on the left and right sides of the rail 2. The seedling box parallel laying device is configured to supply and place the seedling box A when the traveling frame 4 is reciprocated alternately.
In the present invention, the placement frame 7 is a seedling box parallel laying device configured such that the short sides of the seedling box A can be placed facing each other.
The present invention is a seedling box parallel laying device in which the placement moving frame 7 is configured to move intermittently by the length of one seedling box A.
In the present invention, the traveling frame 4 has a pair of front and rear vehicle body lateral frames 5, and the seedling box supply unit 22 is provided with a guide traveling roller 49 that travels on each vehicle body lateral frame 5, and the seedling box supply unit Reference numeral 22 denotes a seedling box parallel laying device configured to be movable by the distance L to the left and right with respect to the traveling frame body 4.
The present invention provides a seedling box parallel laying device in which the traveling frame body 4 is provided with a movement stopping member 53 that stops when the seedling box supply unit 22 moves left and right with respect to the traveling frame body 4 by the distance L. Is.
According to the present invention, the stopper 43 provided in the seedling box supply unit 22 is configured so that the placement moving frame 7 transfers the seedling box A to the lower part of the one side plate 24 and the other side plate 25 of the seedling box supply unit 22. Then, when the end surface of the seedling box A comes into contact, it rotates and retracts, but on the return path where the seedling box A is lowered, it lays in parallel with the seedling box that is pivotally attached to the end surface of the seedling box A without rotating. It is a device.
The present invention includes a mounting frame 7 that moves in the left-right direction by a motor to a travel frame 4 that can move back and forth on a rail 2 in the front-rear direction provided in the mounting field 1, and a travel frame 4 that is above the rail 2. A seedling box supply unit 22 that can supply the seedling box A one by one and a seedling box on the mounting movement frame 7 that is provided on both the left and right sides of the seedling box supply unit 22 and passes the mounting movement frame 7. A has a stopper 43 that does not allow passage, the seedling box supply unit 22 is formed wider than the left and right widths of the rail 2 by an interval L, and the seedling box supply unit 22 is arranged to the left and right with respect to the traveling frame 4. When the said seedling box supply part 22 is provided in the movement direction of the said placement movement frame 7 only by the said distance L, the said placement movement frame 7 faces the downward direction of the said seedling box supply part 22 A single seedling box A is supplied, and the placement frame 7 is moved intermittently. When the number of seedling boxes A is supplied, the seedling box supply unit 22 is moved in the reverse movement direction of the placement movement frame 7 by the interval L, and then the placement movement frame 7 is reversely moved. The seedling box A at one end, which has been dammed by 43, falls, and the seedling box A is supplied to the placement movement frame 7 at the other end, and the drop by the damming of the seedling box A and the supply of the new seedling box A are repeated. When the seedling box A is laid on both the left and right sides of the rail 2, the traveling frame 4 is a seedling box parallel laying device configured to move forward.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a mounting place for arranging seedling boxes A, which may have a predetermined area, whether indoors or outdoors. A rail 2 is laid on the mounting place 1, and a traveling frame body 4 of the seedling box paralleling device 3 is placed on the rail 2 so as to be able to travel. The rails 2 are laid at an arbitrary interval, but are usually laid at an interval of about 300 mm in order to effectively use the area of the mounting place 1. On the other hand, the seedling box A is approximately 600 mm in length and approximately 300 mm in width. As will be described later, since the seedling box A is laid sideways, the rail 2 is smaller than the lateral width of the seedling box A by a predetermined interval. Will be formed.
The traveling frame body 4 is formed in a rectangular shape in plan view by the vehicle body lateral frame 5 and the vehicle body side frame 6 so as to be positioned above a laying space for laying a plurality of seedling boxes A on both the left and right sides of the rail 2, The inside of the frame surrounded by the vehicle body lateral frame 5 and the vehicle body side frame 6 is formed in a bottom-out shape.
The travel frame body 4 is provided with a placement movement frame 7 that moves in the length direction (left-right direction) with respect to the travel frame body 4. The placement movement frame 7 is configured such that a plurality of seedling boxes A can be slidably placed on the upper surface of the placement movement frame 7.
[0007]
The left and right vehicle body side frames 6 are fixed at both ends of a pair of upper and lower rectangular guide rails 11 and 11, and a moving roller 12 is fitted between the upper and lower guide rails 11. The moving roller 12 is formed with hooks 13 that engage with the side surfaces of the guide rail 11 on both side surfaces so as not to come off (FIG. 8). The moving roller 12 is mounted on the mounting shaft 14 so as to be freely rotatable. A plurality of moving rollers 12 are provided at a predetermined interval in the left-right direction on the pair of front and rear moving horizontal frames 15 of the placement moving frame 7 described above.
A plurality of moving vertical frame bodies 16 in the front-rear direction are provided on the front and rear moving horizontal frame bodies 15 at predetermined intervals in the left-right direction, and the front and rear moving horizontal frame bodies 15 are connected and fixed. A support rod 17 parallel to the moving vertical frame 16 is provided. The support bar 17 is in sliding contact with the bottom surface of the seedling box A to reduce the contact area.
A rack (in the embodiment, a chain) 18 is provided over the entire length of the lower surface of the movable horizontal frame 15 (FIGS. 3 and 4), and a forward and reverse reversible pinion 19 provided on the rack 18 on the traveling frame 4 side is provided. The pinion 19 is fixed to the shaft 21 of the frame moving motor 20 by meshing. The frame moving motor 20 is fixed to the vehicle body lateral frame 5 at the center of the traveling frame 4 located above the rail 2.
[0008]
Thus, a seedling box supply unit 22 that can supply the seedling boxes A one by one (one piece) is provided at a position above the rail 2 that is the central part of the traveling frame 4. The seedling box supply unit 22 is formed symmetrically in the front-rear direction, and 23 is a supply unit frame of the seedling box supply unit 22, and the front outer plate 26 is provided on each of the one side plate 24 and the other side plate 25 of the supply unit frame 23. The front inner plate 27, the rear outer plate 26, and the rear inner plate 27 are fixed to each other, and the single seedling box A in plan view is formed by the front and rear inner plates 27, 27 ', the one side plate 24, and the other side plate 25. A nursery box supply space 28 having an area for accommodating the seedling box is formed. The volume of the seedling box supply space 28 of the embodiment is formed to a size that can accommodate 4 to 10 seedling boxes A according to the number of the seedling boxes A placed in a row, but it is formed to be larger. May be. The front inner plates 27, 27 ′ are inclined so as to open outward (front-rear side) as they extend upward from the intermediate portion thereof, and are formed in a guide inclined portion 29 when the seedling box A is supplied.
[0009]
Between the one side plate 24 and the other side plate 25, a pair of front and rear mounting shafts 30 in the left-right direction are mounted, and a base portion of a support member 31 that supports the seedling box A is fixed to the mounting shaft 30. Is rotated between a support position S projecting substantially horizontally into the seedling box supply space 28 and a retreat position T retracting from the seedling box supply space 28 from the front inner plates 27, 27 ′. The support member 31 engages with the buttocks 32 of the second seedling box A from the bottom when the seedling box A is placed on the placement movement frame 7 and then rotated to the support position. Thus, the support position S is lifted and supported.
A base of a rotating arm 33 is fixed to the mounting shaft 30, and a roller 34 is attached to the tip of the rotating arm 33, and the roller 34 is attached to the periphery of a cam plate 36 fixed to a rotating shaft 35 parallel to the mounting shaft 30. Make contact. The rotary shaft 35 is mounted on the one side plate 24 and the other side plate 25. Reference numeral 37 denotes a spring that urges the roller 34 to always contact the peripheral edge of the cam plate 36.
[0010]
A bevel gear 38 is fixed to each rotary shaft 35 protruding inward from the other side plate 25, and a fixed bevel gear 41 is meshed with the bevel gear 38 on a transmission shaft 40 in the front-rear direction rotated by a supply motor 39.
The traveling frame bodies 4 on the left and right sides of the seedling box supply unit 22 are configured as a standby unit 42 having a space for waiting for the plurality of seedling boxes A, and the placement moving frame 7 is configured as one standby unit 42. The seedling boxes A are arranged in parallel on both the left and right sides with the central rail 2 interposed therebetween.
That is, when the placement movement frame 7 is moved from one of the left and right standby parts 42 to the other standby part 42, the seedling box A is supplied from the seedling box supply part 22 and at the same time on the placement movement frame 7. The seedling box A is dropped from the placement movement frame 7 to improve work efficiency.
[0011]
Accordingly, the seedling box supply unit 22 is provided with a stopper 43 that stops the movement of the seedling box A with respect to the mounting movement frame 7 that moves. That is, the seedling box A is placed on the placement movement frame 7 over the entire length. In this state, the seedling box A on the placement movement frame 7 is made immovable by the stopper 43, and then the placement movement frame 7 is placed. Is moved, the seedling raising box A on the placing movement frame 7 on the end side is dropped and arranged in order.
The stopper 43 is provided below the one side plate 24 and the other side plate 25 above the placement movement frame 7 so that the placement movement frame 7 passes but the seedling box A cannot pass. In the embodiment, the bracket 44 is fixed to the lower side surfaces of the one side plate 24 and the other side plate 25, the upper portion of the stopper 43 is pivotally attached to the bracket 44 by the shaft 45, and the placement moving frame 7 transfers the seedling box A When the end surface of the seedling box A comes into contact with the forward path, the upper side turns and retracts when the end surface of the seedling box A comes down. Instead of moving, the end face of the seedling box A is brought into contact with the stopper 43 so as to be immovable with respect to the placement moving frame 7 (FIG. 11). Further, depending on the shape of the seedling box A, the stopper 43 is configured to be wide and rest on the side wall of the seedling box A (FIG. 12).
[0012]
In this case, the rail 2 is formed narrower than the lateral width of the seedling box A by a predetermined distance, and the seedling box supply unit 22 has a seedling box supply space 28 for storing the sideways seedling box A. The portion 22 is formed to be larger than the left and right width of the rail 2 by an interval L. When the seedling box supply unit 22 is fixed to the center of the traveling frame body 4 and the seedling box A is supplied to the placement moving frame 7. The left and right stoppers 43 of the seedling box supply unit 22 are located at a distance of half the distance L from the rail 2 and cannot be placed in the vicinity of the rail 2 so that the placement space cannot be used effectively. .
In the present invention, the seedling box supply unit 22 is provided so as to be movable in the left-right direction with respect to the traveling frame body 4 so that the seedling box A can be placed at a position as close as possible to the rail 2. As shown in FIG. 5, the seedling box supply unit 22 is provided with a bottom plate 46 below the mounting shaft 30, and a bearing portion 47 and a window hole 48 are simultaneously formed on the bottom plate 46 by cutting and raising. Is formed at the same interval as the vehicle body lateral frame 5 before and after the traveling frame body 4 and is positioned above the vehicle body lateral frame 5, and the guide traveling roller 49 is fitted into the window hole 48. Is attached to the bearing 47 by mounting it. The guide travel rollers 49 are respectively fitted to the upper surface of the vehicle body lateral frame 5, and the seedling box supply unit 22 is placed on the vehicle body lateral frame 5 of the travel frame body 4 so as to be movable in the left-right direction.
[0013]
The seedling box supply unit 22 is moved to the moving direction side of the placement moving frame 7 and, as shown in FIG. 14, is positioned at the center in the initial state in FIG. 14A, but in FIG. 14 h, the stopper 43 is positioned substantially above the right rail 2, and the seedling box A is placed in the vicinity of the right rail 2.
Therefore, a movement stop member 53 for stopping the movement of the seedling box supply unit 22 is provided on the upper surface of the vehicle body lateral frame 5 of the traveling frame body 4 that is positioned on the outer side in the left-right direction by the distance L from the rail 2. The movement stop member 53 is provided so that the lower side surfaces of the one side plate 24 and the other side plate 25 abut.
In this case, the seedling box supply unit 22 is configured to supply the seedling box A only at a position close to one side or the other side and not to supply it at an intermediate position.
Further, the placement movement frame 7 is configured to move intermittently by one box.
Thus, on both the left and right sides of the placement movement frame 7, there are provided impact relaxation rotating members 54 that reduce the impact of the drop when the placement movement frame 7 is lowered from the placement movement frame 7 onto the placement surface (the ground, floor surface, etc.). . The impact relaxation rotating member 54 is pivotally attached to a protruding piece 55 provided at the end of the movable horizontal frame 15 by a shaft 56. The front and rear impact relaxation rotating members 54 are connected by a connecting rod 57, and a spring 58 is provided between the impact relaxation rotating member 54 and the movable horizontal frame 15.
[0014]
The spring 58 is configured so as to hold the impact relaxation rotating member 54 at the support position and the lowering position with the shaft 56 as a dead point, and the impact relaxation rotating member 54 is rotated downward by the load when the seedling box A is placed. The connecting rod 57 comes into contact with the protruding piece 55 to stop the downward rotation.
At this time, the spring 58 is held beyond the so-called dead point located below the shaft 56 and is moved to the projection 59 provided on the traveling frame body 4 side by the movement of the mounting movement frame 7 so as to be a shock-relieving rotating member. When the lower surface of 54 returns to the original position due to contact, the spring 58 is positioned above the shaft 56 and is held.
Therefore, the lower surface of the impact relaxation rotating member 54 is inclined so as to become higher as it reaches the tip, so that the contact between the protrusion 59 and the impact relaxation rotating member 54 is smooth.
61 is a wheel of the traveling frame 4, 62 is a traveling motor, 63 is a gear provided on the traveling wheel 61, 64 is a gear provided on the rotating shaft of the traveling motor, and 65 is hung between the gear 63 and the gear 64. The rotated chain, 66 is a supporting wheel, and 67 is a mounting table on which a stacked seedling box A, which is stacked next to the seedling boxes A arranged next to or on the rail 2, is placed.
Thus, the traveling frame 4 is provided with mounting rods 68 in the front-rear direction at intervals larger than one nursery box A with respect to the left and right vehicle body side frames 6. Although it does not move, the upper part of the space | interval control stopper 69 is pivotally attached by the axis | shaft 70 so that it may rotate outside. The interval regulating stopper 69 protrudes downward from the attachment rod 68 and comes into contact with the end surface of the seedling box A, thereby immobilizing the seedling box A with respect to the placement moving frame 7.
[0015]
[Action]
In the present invention, a seedling box supply unit 22 is provided in the center of the traveling frame body 4, and a placement moving frame 7 in which a plurality of seedling boxes A are placed on the traveling frame bodies 4 on both the left and right sides of the seedling box supply unit 22 stands by. A standby unit 42 is provided, and stoppers 43 are provided on the left and right sides of the seedling box supply unit 22 through which the placement movement frame 7 passes but the seedling box A on the placement movement frame 7 is not allowed to pass. 7 is configured to reciprocate alternately between one standby unit 42 and the other standby unit 42, so that the stacked seedling box A is supplied to the seedling box supply unit 22, and this seedling box A is used as the seedling box When it is supplied to the placement movement frame 7 that moves one by one by the supply unit 22 and is placed on the entire surface of the placement movement frame 7, the innermost seedling raising box A is stopped by the stopper 43 and the placement movement frame 7 is moved. Move toward the standby part 42 on the opposite side, place the seedling box A at the end in order, and parallel to the side part of the rail 2 Laying the nursery box A to the state.
[0016]
In this case, the relationship between the seedling box supply unit 22 and the rail 2 is that the seedling box supply unit 22 forms a seedling box supply space 28 having an area for accommodating one seedling box A in plan view, and the rail 2 Is formed smaller than the lateral width of the nursery box A by an interval L. First, as shown in FIG. 14A, the placement moving frame 7 moves to the right side in the nursery box supply unit 22. The distance L is shifted to the right side (FIG. 14B), and when it reaches a predetermined position, the lower side surface of the other side plate 25 of the seedling box supply unit 22 comes into contact with the movement stop member 53 and the lateral movement stops.
In this state, since the placement movement frame 7 is located on the left side, the frame movement motor 20 is rotated forward to move the placement movement frame 7 toward the standby unit 42 on the right side. When the placement space for one right nursery box A1 is located below the seedling box supply unit 22, the frame moving motor 20 is stopped, and then the supply motor 32 is energized to supply the seedling box supply unit. A single seedling box A is supplied by 22 (FIG. 14B).
[0017]
Again, when the frame moving motor 20 is rotated forward to move the placement moving frame 7 by one box toward the standby unit 42 on the right side (FIG. 14C), the placement moving frame 7 is placed for one box. Since the space is located below the seedling box supply unit 22, the frame moving motor 20 is stopped, and then the supply motor 32 is energized to supply the seedling box A by the seedling box supply unit 22 located on the right side ( 14C), when this is repeated (FIG. 14D, E), the seedling box A is placed over the entire length of the placement movement frame 7 and is positioned on the right standby part 42 (FIG. 14F).
In this state, when the seedling box supply unit 22 is first moved to the left side, the retracted stopper 43 located on the upper surface of the innermost seedling box A passes the end face of the seedling box A. It turns to a standing state and is positioned substantially above the right rail 2 (FIG. 14G).
Next, when the frame moving motor 20 is reversely rotated and a placement space for the seedling box A1 box is opened at the left end of the placement movement frame 7, this placement space of the seedling box supply unit 22 that is leaning to the left side. Positioned below, the frame moving motor 20 is stopped, and then the supply motor 32 is energized to supply only one seedling box A by the seedling box supply unit 22 (FIG. 14C).
[0018]
At this time, since the left end surface of the seedling box A on the right side of the stopper 43 is in contact with the stopper 43, when the placement movement frame 7 moves to the left side, only the placement movement frame 7 moves, and the other side plate The seedling box A on the inner side comes into contact with the stopper 43 provided at 25 and becomes immobile, and the seedling box A adjacent to the seedling box A dammed up by the stopper 43 comes into contact with the whole seedling box A. Then, when it moves until the placement space for one box is opened on the left side, the one seedling box A on the right side falls and is placed (FIG. 14C). ).
When the placement movement frame 7 is moved again to the left by one box, the right nursery box A falls (FIG. 14), and the space of the left placement movement frame 7 faces below the nursery box supply unit 22. Therefore, when the seedling box A is supplied (Fig. 14) and this is repeated (Fig. 14 Nu, Le, O, Wa), the placement moving frame 7 is moved to the left side to supply the seedling box A, and the rail. The seedling box A is placed on the right-side placement place 1.
[0019]
Next, although not shown in the drawings, when the seedling box supply unit 22 is moved to the right side and the placement moving frame 7 is moved to the right side, the first row seedling box parallel operation is finished, and the placement moved to the right side is completed. The next seedling box A is supplied on the placement movement frame 7, and in this state, the traveling frame body 4 is advanced, and the above operations are repeated to perform the second and subsequent rows of seedling box parallel operations. The seedling box A can be juxtaposed on the left and right sides of the rail 2.
Therefore, when the placement movement frame 7 moves from one standby part 42 to the other standby part 42, the nursery box A on the placement movement frame 7 on the one standby part 42 side is lowered, and the other standby part 42 side is placed. Since the seedling box A is supplied onto the placement movement frame 7, the work efficiency is improved, that is, the placement of the seedling box A on the placement movement frame 7 is limited to the first row of the work. Although it is necessary to move the placement movement frame 7, the seedling box A has already been supplied onto the placement movement frame 7 at the second row, and the working efficiency is greatly improved.
Further, since the movement of the placement movement frame 7 is configured to move intermittently by one box, placement from the placement movement frame 7 to the placement site 1 and raising of seedlings to the placement movement frame 7 are performed. When supplying the box A at the same time, it can be performed smoothly and reliably. That is, when the seedling box A is supplied from the seedling box supply unit 22 to the placement movement frame 7, the placement movement frame 7 is stopped, so that the seedling box A is prevented from being displaced with respect to the placement movement frame 7. And it will be smooth to place on the floor.
[0020]
Thus, the seedling box supply unit 22 is provided so as to be movable in the left-right direction with respect to the traveling frame body 4 and moves to the left and right by an interval L that is a difference from the width of the seedling box A larger than the width of the rail 2. Thus, when the seedling box supply unit 22 is moved left and right, the left and right stoppers 43 provided in the seedling box supply unit 22 are positioned substantially above the left and right rails 2. The innermost nursery box A on the placement movement frame 7 can be placed in the vicinity of the rail 2.
Therefore, the seedling box supply unit 22 can supply the seedling box A one by one, and if it has the stoppers 43 that dam the seedling box A on the left and right sides thereof, the seedling box supply as described above. When the part 22 is moved left and right, the innermost breeding box A on the placement movement frame 7 can be placed in the vicinity of the rail 2.
[0021]
Thus, the seedling box supply unit 22 forms a window hole 48 in a bottom plate 46 provided below the attachment shaft 30, and the window hole 48 is positioned on the vehicle body lateral frame 5 of the traveling frame body 4. Since the guide travel roller 49 is fitted to the upper surface of the vehicle body lateral frame 5 and the seedling box supply unit 22 is placed, the seedling box supply unit 22 is attached to the travel frame 4. It can move left and right. In the embodiment, the moving position of the seedling box supply unit 22 is switched to the left and right by manual operation, but a motor may be used.
However, the configuration of the seedling box supply unit 22 is not a requirement, but the operation thereof will be described. The seedling box supply unit 22 supports the stacked stack seedling box A in the seedling box supply space 28 by the support member 31. When the mounting movement frame 7 is positioned at a predetermined position, the supply motor 39 is energized to rotate the transmission shaft transmission shaft 40, and the rotation of the transmission shaft 40 is applied to the rotation shaft 35 via the bevel gear 41 and the bevel gear 38. The rotation shaft 35 rotates the cam plate 36.
[0022]
The cam plate 36 moves the roller 34 up and down, whereby the rotation arm 33 rotates to rotate the attachment shaft 30 forward and backward, and the support member that supports the seedling box A by forward and reverse rotation of the attachment shaft 30. 31 is rotated from the support position S to the retracted position T, and the entire seedling box A in the seedling box supply space 28 falls on the placement moving frame 7, and then the support member moves from the retracted position T to the support position S. When 31 returns, the lowermost seedling box A is left on the placement movement frame 7 and 31 is engaged with the buttocks 32 of the second stage seedling box A from the bottom and lifted to the support position S to be supported.
Therefore, since the seedling box A can be supplied to the placement moving frame 7 one by one by the pair of front and rear support members 31, the structure is simple, the breakdown is small, and the cost is reduced. That is, in the state where the seedling box A that is the second stage from the bottom is supported, the support supply mechanism of the upper and lower two sets of removing the support of the lowermost seedling box A is complicated, but the support member 31 of the present application also has a drive mechanism. Easy to do.
[0023]
Thus, on both the left and right sides of the mounting movement frame 7, a pair of front and rear vertical shock-releasing rotating members 54 are rotatably provided by the shaft 56, and the shock-relaxing rotating member 54 is a nursery box. Since it is configured to support the seedling box A on the forward path for transferring A and to rotate downward on the return path to lower the seedling box A, it does not interfere with the floor surface etc. on the return path moving toward the center side, In the unlikely event that it hits the convex portion, it can escape by turning upward, and it is located upward in the forward path that may interfere with the floor surface etc. without turning upward. In particular, when a net for root cutting is laid on a farm scene and the seedling box A is placed on the net, the impact of falling is reduced and the net is prevented from being caught by the net.
Further, the impact relaxation rotating member 54 is provided with a spring 58 between the impact relaxation rotating member 54 and the placement moving frame 7 so as to hold the shaft shaft 56 at the support position and the lowering position with the shaft shaft 56 as a dead point. Therefore, the seedling box A is surely supported at the support position, and inadvertently rotating upward at the lowering position.
[0024]
That is, the impact relaxation rotating member 54 rotates downward with the load placed on the seedling box A when the seedling box A is lowered, and comes into contact with the protrusion 59 provided on the traveling frame 4 when it returns to the final position on the return path. Since the return member 54 is returned to the support position, when the nursery box A is placed by the movement of the placement moving frame 7, the impact relaxation turning member 54 is turned downward about the axis 56 by the load, and the connecting rod 57 is moved. When the projecting piece 55 abuts, the downward rotation stops, and at this time, the spring 58 suspended between the impact relaxation rotating member 54 and the placement moving frame 7 is a so-called dead point located below the shaft 56. The nursery box A is slid and placed on the tilting shock-relieving rotating member 54 so that the shock-relieving rotating member 54 is held. Therefore, since the impact of falling is relieved, scattering of the soil and seeds in the seedling box A is prevented.
Then, when the placement movement frame 7 moves in the return path toward the center side, the lower surface of the shock relaxation rotating member 54 comes into contact with the protrusion 59 provided on the traveling frame body 4 side. Thus, it automatically returns to the original position, and when the placement movement frame 7 moves to the outside, it is located at the upper position and does not interfere with the floor surface or the like.
[0025]
Thus, since the seedling box A to which the soil is supplied is placed on the placement moving frame 7, the soil is scattered, but the moving roller 12 provided on the placement moving frame 7 forms the hooks 13 on both sides, Since the traveling frame body 4 is provided with a pair of upper and lower guide rails 11 and 11 and the moving roller 12 is sandwiched between the upper and lower guide rails 11 and 11, it has fallen onto the lower guide rail 11. The soil falls from the left and right sides to prevent the soil from accumulating. In other words, when a cylindrical roller is fitted into a channel-shaped rail, the circumferential surface of the roller comes into contact with the rail to properly support and guide the load. However, in the present application, since the periphery is opened with a pair of upper and lower guide rails 11, 11, the soil is prevented from accumulating, and the moving roller 12 is provided with the flange 13. As with the channel-shaped rail, it can be guided accurately.
Moreover, although the front-rear width of the mounting movement frame 7 can be arbitrarily configured, in particular, since the seedling box A is configured so as to be arranged side by side, the growth of the right and left side seedling boxes A is not allowed for the seedling in the house. Even if there is a delay, it is sufficient to remove the portion and supply it to the rice transplanter, so that waste of seedlings is not generated. That is, when the seedling boxes A are arranged vertically in parallel, the seedlings in the column outside the seedling box become poorly grown and the seedling mat is supplied to the rice transplanter in the vertical direction. If it is supplied, the seedlings will be lost, so the defective seedlings cannot be removed, and one box of seedlings will be wasted. In this respect, if it is laid side by side, it can be supplied to the rice transplanter even if only that part is removed.
Normally, however, the innermost nursery box A is stopped by the stopper 43 and moved only by the placement movement frame 7, so that the placed seedling boxes A are juxtaposed without any gaps (see FIGS. 14, 15, 16 is a space between adjacent seedling boxes A for the convenience of drawing.), The traveling frame 4 has a larger distance than the spacing of one seedling box A based on the left and right vehicle body side frames 6 in the front-rear direction. Since the upper part of the distance regulating stopper 69 is pivotally attached by the shaft 70 so that it does not rotate to the center side but pivots to the outside, the distance regulating stopper 69 is provided. When the placement moving frame 7 moves in the forward direction, the tip of the seedling box A rotates upward when the tip of the seedling box A comes into contact with the distance regulating stopper 69. The moving frame 7 passes, but the end face of the seedling box A is spaced. Since topper space restricting stopper 69 when contact 69 does not rotate in contact with the side face of the mounting rod 68, nursery box A in this position is kept stationary state, it is placed in the field. Therefore, each seedling box A is brought into contact with each interval regulating stopper 69 and lowered to the field, so that a gap can be provided between the seedling boxes A and arranged in parallel. Further, when the distance control stoppers 69 are selected and lowered, the entire seedling box A moves forward under the distance control stoppers 69, and only the desired seedling box A contacts the distance control stoppers 69 on the return path. , Can be placed at a desired interval.
[0026]
【The invention's effect】
In the present invention, a traveling frame body 4 is installed on a rail 2 in the front-rear direction provided on the mounting site 1 so as to be movable back and forth, and a mounting movement frame 7 provided on the traveling frame body 4 so as to be movable in the left-right direction is disposed on the rail 2. The nursery box supply part 22 formed on the left or right side of the rail 2 and formed larger by the interval L than the left and right width of the rail 2 provided above the traveling frame 4 is either left or right of the rail 2 by the interval L. When the other side of the placement moving frame 7 faces the lower side of the seedling box supply unit 22 in this state, the seedling box A is supplied one by one and the seedling box is placed on the entire surface of the placement moving frame 7. When A is supplied, the seedling box supply unit 22 is returned to one side by the interval L, and then the seedling box A on the placement moving frame 7 is dammed up by the stopper 43 with respect to the placement moving frame 7. After the immobilization state, the placement movement frame 7 is reversed and moved toward one side, and the growth on the placement movement frame 7 is increased. The box A is placed on the placement place 1 on the other side of the rail 2, and at the same time, one side of the placement moving frame 7 is placed below the seedling box supply unit 22 to supply a new seedling box A, The seedling box A on the placement movement frame 7 is placed on the placement place 1 on one side of the rail 2, and at the same time, the other side of the placement movement frame 7 faces below the seedling box supply unit 22. When the seedling box A is newly supplied and the seedling box A is laid on both the left and right sides of the rail 2, the seedling box parallel laying method is configured so that the placement moving frame 7 is moved forward by one box. Since the seedling box A placed over the entire length can be moved from the stopper 43 to the immovable state, the placement movement frame 7 can be pulled out and arranged in parallel, so that the seedlings are raised below the traveling frame body 4 and the placement movement frame 7. Since the box can be placed, the placement space can be used effectively, and the seedling box A is alternately supplied to the left and right sides of the rail 2, Feeding is easy and reliable, the seedling boxes A do not overlap and do not leave any gaps, control is easy, work can be done in a narrow work space, and the traveling frame 4 is repeatedly stopped and moved forward Since they are arranged in parallel, the traveling direction of the traveling frame 4 is not reversed, and the operation of replenishing the seedling box to the seedling box parallel laying device can be facilitated, and the overall work can be facilitated.
In addition, when the placement frame 7 is moved alternately left and right, the supply and the drop can be performed simultaneously, so that the working efficiency is improved and the seedling box A is already supplied when the traveling frame 4 is advanced. In order to supply the seedling box A, it is only necessary to move the reciprocating placement moving frame 7, and the working efficiency can be improved also in this respect.
In addition, the seedling box supply unit 22 is formed larger than the left and right widths of the rail 2 by an interval L, and the seedling box supply unit 22 is operated after being moved to the left or right side of the rail 2 by the interval L. The seedling box can be placed in the vicinity of the rail 2 while supplying the seedling box in one place in the center, and an effect that the mounting space can be effectively used is achieved.
The present invention travels on a rail 2 in the front-rear direction provided on the mounting site 1 and has a left-right length that allows a plurality of seedling boxes A to be juxtaposed on the left and right sides of the rail 2 and has a rectangular shape in plan view with a bottom. A frame 4 and a plurality of seedling boxes A laid on one side of the rail 2 can be placed, and the left and right traveling frame 4 of the rail 2 can be moved back and forth alternately. A placement movement frame 7 provided in the above, a seedling box supply unit 22 capable of supplying the seedling box A one by one to the placement movement frame 7 provided in the center of the traveling frame 4 and positioned below, and the seedling box It is provided with stoppers 43 that are provided on the left and right sides of the supply unit 22 and pass through the placement movement frame 7 but do not allow the seedling box A on the placement movement frame 7 to pass. The seedling box supply unit 22 is formed wider than the left and right widths by an interval L. Since the seedling box parallel laying device is provided so that it can be moved to the left and right by the distance L, it can be achieved with the simplest configuration to implement the method, work efficiency can be improved, and the mounting space can be used effectively. The seedling box supply unit 22 is formed wider than the left and right widths of the rail 2 by an interval L, and the seedling box supply unit 22 is arranged in parallel with the seedling box provided so as to be movable from the traveling frame 4 to the left and right by the interval L. Since the laying device is provided, a seedling box supply unit 22 larger than the width of the rail 2 is provided in the center, but the seedling box can be placed in the vicinity of the rail 2, and one seedling box supply unit 22 is provided. It is possible to achieve both the simplification of the configuration of the apparatus and the effective use of the mounting space.
In the present invention, when the placement frame 7 moves from one side of the rail 2 to the other side, the seedling box A already supplied by the seedling box supply unit 22 is placed on one side of the rail 2. While being lowered to the placement place 1, the space on the open placement movement frame 7 is supplied with a new seedling box A to be lowered to the other placement place 1, and the placement movement frame 7 is arranged on the left and right sides of the rail 2. Since the seedling box parallel laying device is configured to supply and place the seedling box A when the traveling frame body 4 is reciprocated alternately, the seedling box A is placed on the left and right traveling frame bodies 4 of the rail 2. Can be caused to fall alternately, and the seedling boxes A can be placed in parallel at once on the left and right sides of the center rail 2 (without changing the direction of the traveling frame 4), thereby improving space efficiency. There is an effect that can be done.
In the present invention, the placement frame 7 is a seedling box parallel laying device configured so that the short sides of the seedling box A can be placed opposite to each other. Even if the growth of A may be delayed, it is only necessary to remove the portion and supply it to the rice transplanter.
In the present invention, since the placement frame 7 is a seedling box parallel laying apparatus configured to move intermittently by the length of one seedling box A, the supply in the seedling box supply unit 22 is ensured, and the seedlings are raised. Box A can be laid beautifully without overlapping or spacing.
In the present invention, the traveling frame 4 has a pair of front and rear vehicle body lateral frames 5, and the seedling box supply unit 22 is provided with a guide traveling roller 49 that travels on each vehicle body lateral frame 5, and the seedling box supply unit Since 22 is a seedling box parallel laying device configured to be movable to the left and right by the distance L with respect to the traveling frame body 4, the seedling box supply unit 22 is moved left and right with a simple configuration to ensure operation. Reduce costs.
The present invention provides a seedling box parallel laying device in which the traveling frame body 4 is provided with a movement stopping member 53 that stops when the seedling box supply unit 22 moves left and right with respect to the traveling frame body 4 by the distance L. Therefore, since the positioning of the seedling box supply unit 22 is easy and reliable, there is an effect that the seedling box A can be reliably supplied without being overlapped or spaced apart.
According to the present invention, the stopper 43 provided in the seedling box supply unit 22 is configured so that the placement moving frame 7 transfers the seedling box A to the lower part of the one side plate 24 and the other side plate 25 of the seedling box supply unit 22. Then, when the end surface of the seedling box A comes into contact, it rotates and retracts, but on the return path where the seedling box A is lowered, the seedling box is laid in parallel by the shaft 45 so as to contact the end surface of the seedling box A without rotating. Since it is an apparatus, the position of the stopper 43 moves left and right, but there is an effect of acting reliably.
The present invention includes a mounting frame 7 that moves in the left-right direction by a motor to a travel frame 4 that can move back and forth on a rail 2 in the front-rear direction provided in the mounting field 1, and a travel frame 4 that is above the rail 2. A seedling box supply unit 22 that can supply the seedling box A one by one and a seedling box on the mounting movement frame 7 that is provided on both the left and right sides of the seedling box supply unit 22 and passes the mounting movement frame 7. A has a stopper 43 that does not allow passage, the seedling box supply unit 22 is formed wider than the left and right widths of the rail 2 by an interval L, and the seedling box supply unit 22 is arranged to the left and right with respect to the traveling frame 4. When the said seedling box supply part 22 is provided in the movement direction of the said placement movement frame 7 only by the said distance L, the said placement movement frame 7 faces the downward direction of the said seedling box supply part 22 A single seedling box A is supplied, and the placement frame 7 is moved intermittently. When the number of seedling boxes A is supplied, the seedling box supply unit 22 is moved in the reverse movement direction of the placement movement frame 7 by the interval L, and then the placement movement frame 7 is reversely moved. The seedling box A at one end, which has been dammed by 43, falls, and the seedling box A is supplied to the placement movement frame 7 at the other end, and the drop by the damming of the seedling box A and the supply of the new seedling box A are repeated. When the seedling box A is laid on both the left and right sides of the rail 2, the traveling frame 4 is a seedling box parallel laying device configured to move forward. Therefore, automatic mechanization of the seedling box A is easy, and the seedling box parallel There is an effect that it can be laid easily.
[Brief description of the drawings]
FIG. 1 is a perspective view of a seedling box parallel device.
FIG. 2 is a schematic rear view of the same.
FIG. 3 is a schematic longitudinal side view of the traveling frame body and the placement movement frame.
FIG. 4 is a partial plan view of a traveling frame body and a placement movement frame.
FIG. 5 is a plan view of a seedling box supply unit.
FIG. 6 is a partial perspective view of a traveling frame body and a placement movement frame.
FIG. 7 is a rear view of the guide rail and the moving roller.
FIG. 8 is a side view of the same.
FIG. 9 is a vertical side view of a supply unit.
FIG. 10 is a perspective view of the rotation transmission mechanism.
FIG. 11 is a perspective view of a stopper.
FIG. 12 is a second embodiment of the stopper.
FIG. 13 is a side view of the impact relaxation rotating member.
FIG. 14 is an explanatory diagram of a parallel state viewed from the front.
FIG. 15 is an explanatory diagram of an action state of the impact relaxation rotating member as viewed from the front.
FIG. 16 is an explanatory diagram of a parallel state viewed from a plane.
FIG. 17 is a front view of an interval regulating stopper.
FIG. 18 is a perspective view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Mounting place, 2 ... Rail, 3 ... Seedling box parallel apparatus, 4 ... Traveling frame body, 5 ... Front and rear frame, 6 ... Side part frame, 7 ... Mounting movement frame, 12 ... Moving roller, 13 ... Buttocks, DESCRIPTION OF SYMBOLS 14 ... Mounting shaft, 15 ... Moving horizontal frame, 16 ... Moving vertical frame, 17 ... Supporting rod, 18 ... Rack, 19 ... Pinion, 20 ... Frame moving motor, 21 ... Shaft, 22 ... Seedling box supply part, DESCRIPTION OF SYMBOLS 23 ... Supply part frame, 24 ... One side plate, 25 ... Other side plate, 26 ... Front side outer plate, 27 ... Front side inner plate 27, 28 ... Nursery box supply space, 29 ... Guide inclination part, 30 ... Mounting shaft, 31 DESCRIPTION OF SYMBOLS ... Support member, 33 ... Turning arm, 34 ... Roller, 35 ... Rotating shaft, 36 ... Cam plate, 38 ... Bevel gear, 39 ... Left feed motor, 40 ... Transmission shaft, 41 ... Bevel gear, 42 ... Standby part, 43 ... stopper, 44 ... bracket, 45 ... shaft, 46 ... bottom plate, 47 ... bearing, 48 ... window 49 ... Guide travel roller, 50 ... Rotating shaft, 54 ... Rotating member for shock reduction, 53 ... Movement stop member, 55 ... Projection piece, 56 ... Shaft, 57 ... Connecting rod, 58 ... Spring, 59 ... Protrusion, 61 ... wheel, 68 ... mounting rod, 69 ... interval regulating stopper, 70 ... shaft.
