JP4021641B2

JP4021641B2 - Rotating brush for seedling container

Info

Publication number: JP4021641B2
Application number: JP2001316174A
Authority: JP
Inventors: 浩一石川
Original assignee: 株式会社スズテック
Priority date: 2001-10-15
Filing date: 2001-10-15
Publication date: 2007-12-12
Anticipated expiration: 2021-10-15
Also published as: JP2003116362A

Description

【０００１】
【産業上の利用分野】
本発明は、育苗容器に土を供給する装置等に使用する回転ブラシの取付構成に関するものである。
【０００２】
【従来技術】
従来公知ではないが、先願の特願２０００−２４７２６１号には、ブラシ回転軸の両端に左右一対の回動アームを夫々取付け、各回動アームは移送台に回動自在に取付け、ブラシ回転軸の両端には牽引支持部材を設け、牽引支持部材はダイヤルを有する調節螺子軸に上下自在に取付け、左右の調節螺子軸は連結軸により連結し、連結軸は移送台に設けた側板の上部の高さの相違する切替用係合段部に選択係合させて支持する構成について提案されている。
【０００３】
【発明が解決しようとする課題】
前記先行技術のものは、微調節機構を工夫して、変更範囲を広くしたものであるが、単に一つの回転ブラシを設けた点に課題がある。
即ち、先行技術ものは前後にブラシを並設する思想がないから、左右に回動アームを設けており、このまま、前後に並設すると、組立て・組み付け等の作業をするスペースが必要なため、設置間隔が長くなり、全体長さを長くするという課題がある。
この点、少し工夫すると、組立て・組み付け等の作業スペースを充分に確保しつつ、回転ブラシの前後の設置間隔を短くできる。
【０００４】
【発明の目的】
設置間隔を短くした回転ブラシの前後並設の実現、作業スペースの確保。
【０００５】
【課題を解決するための手段】
本発明は、育苗容器Ａを移送する移送台１の上方に、該移送台１に左右一対のフレーム側板１６を前後に所定間隔をおいて並設し、各フレーム側板１６には回転ブラシ３のブラシ回転軸６を上下動自在に夫々軸装し、前記前側の回転ブラシ３のブラシ回転軸６の左右何れか一端には前記移送台１からの回転を伝達する伝動機構Ｔを、他端には保護キャップ３５を夫々設け、後側の回転ブラシ３Ｒのブラシ回転軸６Ｒの他端に前記移送台１からの回転を伝達する伝動機構Ｔを、一端に後側保護キャップ３５Ｒを夫々設け、前後のブラシ回転軸６の両端に一対の牽引支持部材１８を夫々取付け、各牽引支持部材１８はダイヤル２２を有する調節螺子軸１９に上下自在に取付け、左右の調節螺子軸１９は連結軸２１により連結し、前記フレーム側板１６の上部に前記連結軸２１を上方から係合させて支持する高さの相違する切替用係合段部２６を前後方向に複数設けた高さ調節装置１５を設けた育苗容器用回転ブラシとしたものである。
本発明は、前記伝動機構Ｔは、ブラシ回転軸６にブラシ歯車３２または後側ブラシ歯車３２Ｒを設け、ブラシ歯車３２または後側ブラシ歯車３２Ｒには前記移送台１の回転軸８に設けたブラシ用歯車との間にチエン３４を掛け回して構成した育苗容器用回転ブラシとしたものである。
【０００６】
【実施例】
本発明の実施例を図面により説明すると、１は育苗容器Ａを移送する移送台、２は移送台１に設けた育苗容器Ａを移送する移送ロール、３は前記移送台１の上方に設けた回転ブラシであり、回転ブラシ３は前記育苗容器Ａに余分に供給した床土４を所定量掻取りながら均平するものである。
前記回転ブラシ３は、そのブラシ回転軸６の両端を左右一対のフレーム側板１６に軸装する。フレーム側板１６は左右一対前記移送台１に設け、フレーム側板１６には前記ブラシ回転軸６を挿通する挿通孔１７を形成し、挿通孔１７は高さの相違する育苗容器Ａに合わせて回転ブラシ３が上下するのを許容する。
フレーム側板１６より側方に突出するブラシ回転軸６の両端には牽引支持部材１８の下部を夫々取付け、各牽引支持部材１８の上部には調節螺子軸１９の下部を螺合させる。２０は牽引支持部材１８に溶接固定した螺合用ナットであり、調節螺子軸１９を回転させると、牽引支持部材１８は調節螺子軸１９に対して上下動する。
【０００７】
調節螺子軸１９の上部は左右方向の連結軸２１に回転自在に取付ける。２２は調節螺子軸１９の上端に設けたダイヤル、２３は連結軸２１の下方の調節螺子軸１９に設けた係合用ナットであり、係合用ナット２３によりダイヤル２２を持ち上げると、連結軸２１が上動する。また、前記螺合用ナット２０の下方の調節螺子軸１９にはロック用ナット２４を螺合させている。
前記牽引支持部材１８には前記移送台１等の固定部との間にバネ２５を設け、常時牽引支持部材１８を下方に牽引するように付勢する。
【０００８】
しかして、前記フレーム側板１６の上縁には、前記連結軸２１を係合させる切替用係合段部２６を複数円弧上に配置形成し、複数ある切替用係合段部２６のうち何れかに選択係合させる。
この場合、前記切替用係合段部２６のうち、前記ブラシ回転軸６の鉛直上に連結軸２１が位置する中央切替用係合段部２６ａを基準段部とし、この状態で左右の調節螺子軸１９を回転させて回転ブラシ３の下端を育苗容器Ａの前壁２７の上面に接触させ、掻取り量を「零」にし、中央切替用係合段部２６ａの前後側に、順に低い切替用係合段部２６を形成し、この切替用係合段部２６に連結軸２１を係合させて回転ブラシ３の下端を育苗容器Ａの前壁前壁２７上面より下方に位置させて、床土を所定量掻き取る。
前記回転ブラシ３の後側にはブラシカバー３０を設け、ブラシカバー３０は前記連結軸２１より所定間隔を置いて下方に位置させて、作業者の手を挿入して連結軸２１を持ち上げられるようにしている。
【０００９】
しかして、図１〜図２は、理解を容易にするために回転ブラシ３を単独で図示しているが、図７以下では、これを前後に並設する。
この場合、回転ブラシ３は、ブラシ回転軸６の両端を左右一対のフレーム側板１６に軸装することにより取付けているので、前側の回転ブラシ３のブラシ回転軸６の左右何れか一端に前側ブラシ歯車３２を設け、該前側ブラシ歯車３２と移送台１の回転軸（移送ロール２の回転軸）８に設けた前側ブラシ用歯車３３との間にチエン３４を設け、前側の回転ブラシ３のブラシ回転軸６の左右何れか他端には保護キャップ３５を取付ける。
【００１０】
一方、前側の回転ブラシ３の前側ブラシ歯車３２を設けた側の反対側となる後側の回転ブラシ３Ｒの後側ブラシ回転軸６Ｒの他端（前側の回転ブラシ３の一端基準）に後側ブラシ歯車３２Ｒを設け、該後側ブラシ歯車３２Ｒと前記回転軸８に設けた後側ブラシ用歯車３３Ｒとの間に後側ブラシ用チエン３４Ｒを設け、後側のブラシ回転軸６の左右何れか一端には後側保護キャップ３５Ｒを取付ける。
即ち、回転ブラシ３のブラシ回転軸６の左右何れか一端には移送台１からの回転が伝達される伝動機構Ｔを設けるが、他端側には伝動機構Ｔを設けず保護キャップ３５のみを設け、後側の回転ブラシ３において伝動機構Ｔおよび後側保護キャップ３５Ｒは夫々反対側となるように配置して、回転ブラシ３の前後設置間隔を短くすると共に、伝動機構Ｔの周囲を広くして組立て・組み付け等の作業を容易にする。
図７では、前後のブラシ３、３Ｒにおいて、高さが相違しているが、これは図の理解を容易にするためのもので、実際の使用状態を示したものではない。但し、土の性状、供給量、掻取り量等の諸条件によっては、前側回転ブラシ３を後側回転ブラシ３Ｒに対して低くすると、掻取り精度を向上させられることがあり、どのように高さ設定するかは本願の要件ではない。
【００１１】
なお、ブラシ回転軸６と移送台１の回転軸８との間にはチエンを設けるだけで、実施可能であるが、実施例では、ブラシ回転軸６の上下に伴うチエンの緩みを防止するため、ブラシ回転軸６と移送台１の回転軸８との間に夫々回動アーム３６を設けているが、要件ではない。
したがって、フレーム側板１６の切替用係合段部２６は、中央切替用係合段部２６ａを基準に前後側の交互に低くくなるように形成すると、掻取り量の設定の精度を向上させ、好適である。
しかして、ブラシ回転軸６は、回転軸８を中心とする円弧線上であって、連結軸２１を中心とする円弧線上を移動するから、高さの相違する育苗容器Ａに合わせると、最初のブラシ回転軸６の位置が上下に変化し、各切替用係合段部２６の段差とブラシ回転軸６の下降量が比例しないことになる。
【００１２】
即ち、高さの相違する育苗容器Ａに合わせて、最初のブラシ回転軸６の位置を変化させると、各切替用係合段部２６に係合させたとき、中央切替用係合段部２６ａに対する下降量が一定とならないことになり、このずれを、中央切替用係合段部２６ａを基準に各切替用係合段部２６を前後側の交互に低くくなるように形成することにより、掻取り量の設定の精度を向上させるのである。２６ｂは第一切替用係合段部、２６ｃは第二切替用係合段部、２６ｄは第三切替用係合段部、２６ｅは第四切替用係合段部であり、順に掻取り量が多くなるように、回転ブラシ３の高さを低くする。
【００１３】
そのため、前記切替用係合段部２６のうち、前記ブラシ回転軸６と連結軸２１とが鉛直上に位置する中央切替用係合段部２６ａを基準段部とし、この状態で左右の調節螺子軸１９を回転させて回転ブラシ３の下端を育苗容器Ａの前壁前壁２７の上面に接触させ、掻取り量を「零」になるように調節し、この中央切替用係合段部２６ａの前後側に、中央切替用係合段部２６ａより順に低い切替用係合段部２６を形成する。
したがって、「零設定」の中央切替用係合段部２６ａより低い切替用係合段部２６に係合させることにより、回転ブラシ３の下端を育苗容器Ａの前壁２７上面より下方に位置させて、床土を所定量掻き取る。
【００１４】
この場合、実施例の切替用係合段部２６は、中央切替用係合段部２６ａを基準に前後側の交互に低くくなるように形成しているから、回転軸８と連結軸２１の２点を中心とする円弧移動するブラシ回転軸６の移動量の変化を最小にして、掻取り量の設定の精度を向上させる。即ち、一例として、７mm、１０mm、１２mm、１５mmの４段階の切替用係合段部２６を形成する場合、側面視、後側より１５mm（第四切替用係合段部２６ｂ）、１２mm（第三切替用係合段部２６ｂ）、０mm（中央切替用係合段部２６ａ）、７mm（第一切替用係合段部２６ｂ）、１０mm（第二切替用係合段部２６ｂ）の順に形成しているから、各切替用係合段部２６の間のずれも小さくなる。
【００１５】
なお、側面視、１５mm（第四切替用係合段部２６ｂ）、１０mm（第二切替用係合段部２６ｂ）、０mm（中央切替用係合段部２６ａ）、７mm（第一切替用係合段部２６ｂ）、１２mm（第三切替用係合段部２６ｂ）の順に形成してもよい。
しかして、牽引支持部材１８はバネ２５により常時下方に牽引されているから、調節螺子軸１９を回転させて牽引支持部材１８を下げると、牽引支持部材１８はバネ２５の弾力により下降し、反対に、調節螺子軸１９を逆回転させると、牽引支持部材１８をバネ２５の弾力に抗して上動させる。
この場合、牽引支持部材１８の上部に調節螺子軸１９の下部を螺合させているから、ダイヤル２２を回転させると、調節螺子軸１９に対して牽引支持部材１８は上下する。
【００１６】
また、連結軸２１の下方の調節螺子軸１９には係合用ナット２３を設けているから、ダイヤル２２を持ち上げると、係合用ナット２３により連結軸２１を上動させ、連結軸２１だけでなく、左右のダイヤル２２によっても連結軸２１を持ち上げて他の切替用係合段部２６に係合させて、回転ブラシ３の掻取り量を変更できる。
また、牽引支持部材１８に固定の螺合用ナット２０の下方の調節螺子軸１９にはロック用ナット２４を螺合させているから、一旦調節すると、狂いが生じない。
また、フレーム側板１６に設けたブラシ回転軸６を挿通する挿通孔１７は、回転軸８を中心とする円弧形状に形成すると、ブラシ回転軸６の上下を円滑にして好適である。
以上のように、フレーム側板１６とブラシ回転軸６との間に、高さ調節装置１５を設け、高さ調節装置１５は連結軸２１とダイヤル２２とバネ２５とフレーム側板１６の上縁に設けた複数の切替用係合段部２６により構成される。
【００１７】
【作用】
次に作用を述べる。
育苗容器Ａを移送する移送台１の上方に左右一対のフレーム側板１６を設け、一対のフレーム側板１６に回転ブラシ３を軸装し、回転ブラシ３には、ブラシ回転軸６に取付けた牽引支持部材１８と、牽引支持部材１８を上下させるダイヤル２２を有する調節螺子軸１９と、左右の調節螺子軸１９を連結した連結軸２１と、移送台１に設けたフレーム側板１６に形成した連結軸２１を係合支持する切替用係合段部２６とを有する高さ調節装置１５を設けているから、何れかの切替用係合段部２６に連結軸２１を係合させた状態で、左右の調節螺子軸１９を回転させて回転ブラシ３の下端を育苗容器Ａの前壁２７の上面に接触させ、掻取り量を「零」にし、次ぎに、ダイヤル２２または連結軸２１を持って、上方に持ち上げて前記切替用係合段部２６より低い他の切替用係合段部２６に連結軸２１を係合させると、最初の切替用係合段部２６と次ぎの切替用係合段部２６の高さ分だけ、牽引支持部材１８は下降し、これによりブラシ回転軸６も下降し、回転ブラシ３は所定高さに設定される。
【００１８】
この状態で、床土を供給した育苗容器Ａを移送台１に供給すると、移送ロール２により移送されて、回転ブラシ３の下方を通過するとき、所定量掻き取られる。
しかして、掻取り量を変更するときは、連結軸２１を複数ある切替用係合段部２６のうち他の切替用係合段部２６に係合させると、これにより連結軸２１は調節螺子軸１９を上下させ、調節螺子軸１９は牽引支持部材１８を上下させ、牽引支持部材１８はブラシ回転軸６を上下させて、回転ブラシ３の高さを変更し、掻取り量を変更する。
また、高さの相違する育苗容器Ａを使用するときは、前記したように、何れかの切替用係合段部２６に連結軸２１を係合させた状態で、左右の調節螺子軸１９を回転させて回転ブラシ３の下端を育苗容器Ａの前壁２７の上面に接触させ、掻取り量を「零」にし、次ぎに、ダイヤル２２または連結軸２１を持って、上方に持ち上げて前記切替用係合段部２６より低い他の切替用係合段部２６に連結軸２１を係合させて、回転ブラシ３を所定高さに設定する。
【００１９】
前記の場合、切替用係合段部２６は、移送台１に設けた左右一対のフレーム側板１６の上縁に円弧上に複数配置しているから、切替用係合段部２６を形成するスペースが多くなって、それだけ、変更範囲を広くできる。
即ち、固定側のフレーム側板１６に、切替用係合段部２６を設けているので、スペースを広くできる。
しかして、図７以下の実施例では、回転ブラシ３を前後に並設し、回転ブラシ３のブラシ回転軸６の左右何れか一端には伝動機構Ｔを設けるが、他端側には伝動機構Ｔを設けず保護キャップ３５、３５Ｒのみを設け、前後の回転ブラシ３において伝動機構Ｔは夫々反対側となるように配置しているから、回転ブラシ３の前後設置間隔を短くすると共に、伝動機構Ｔの周囲を広くして組立て・組み付け等の作業を容易にする。
【００２０】
即ち、前側の回転ブラシ３のブラシ回転軸６の左端に前側ブラシ用アーム３１と伝動機構Ｔを設け、前側のブラシ回転軸６の右端には保護キャップ３５を取付け、一方、後側の回転ブラシ３Ｒのブラシ回転軸６Ｒの右端（前側の回転ブラシ３の左端基準）に後側ブラシ用アーム３１Ｒと伝動機構Ｔを設け、後側のブラシ回転軸６の左端には後側保護キャップ３５Ｒを取付けているから、前後の保護キャップ３５、３５Ｒの周辺を作業空間にでき、回転ブラシ３の前後設置間隔を短くしても、回転ブラシ３の組立て・組み付け等の作業を容易にする。
【００２１】
【効果】
本発明は、育苗容器Ａを移送する移送台１の上方に、該移送台１に左右一対のフレーム側板１６を前後に所定間隔をおいて並設し、各フレーム側板１６には回転ブラシ３のブラシ回転軸６を上下動自在に夫々軸装し、前記前側の回転ブラシ３のブラシ回転軸６の左右何れか一端には前記移送台１からの回転を伝達する伝動機構Ｔを、他端には保護キャップ３５を夫々設け、後側の回転ブラシ３Ｒのブラシ回転軸６Ｒの他端に前記移送台１からの回転を伝達する伝動機構Ｔを、一端に後側保護キャップ３５Ｒを夫々設け、前後のブラシ回転軸６の両端に一対の牽引支持部材１８を夫々取付け、各牽引支持部材１８はダイヤル２２を有する調節螺子軸１９に上下自在に取付け、左右の調節螺子軸１９は連結軸２１により連結し、前記フレーム側板１６の上部に前記連結軸２１を上方から係合させて支持する高さの相違する切替用係合段部２６を前後方向に複数設けた高さ調節装置１５を設けた育苗容器用回転ブラシとしたものであるから、回転ブラシ３の前後設置間隔を短くして回転ブラシ３の組立て・組み付け等の作業を容易にしつつ、変更精度を向上させる。
本発明は、前記伝動機構Ｔは、ブラシ回転軸６にブラシ歯車３２または後側ブラシ歯車３２Ｒを設け、ブラシ歯車３２または後側ブラシ歯車３２Ｒには前記移送台１の回転軸８に設けたブラシ用歯車との間にチエン３４を掛け回して構成した育苗容器用回転ブラシとしたものであるから、回転ブラシ３の組立て・組み付け等の作業を容易にする。
【図面の簡単な説明】
【図１】理解を容易にするために単独の回転ブラシの側面図。
【図２】同正面図。
【図３】同フレーム側板の側面図。
【図４】同高さ調節装置の一部正面図。
【図５】同調節状態断面図。
【図６】同高さ調節装置の一部斜視図。
【図７】回転ブラシを前後に並設した側面図。
【図８】同展開状態の平面図。
【符号の説明】
１…移送台、２…移送ロール、３…回転ブラシ、４…床土、６…ブラシ回転軸、７…取付アーム、８…回転軸、９…歯車、１５…高さ調節装置、１６…フレーム側板、１７…挿通孔、１８…牽引支持部材、１９…調節螺子軸、２０…螺合用ナット、２１…連結軸、２２…ダイヤル、２３…係合用ナット、２４…ロック用ナット、２５…バネ、２６…切替用係合段部、２７…前壁、３０…ブラシカバー、３１…前側ブラシ用アーム、３２…前側ブラシ歯車、３３…前側ブラシ用歯車３３、３４…チエン、３５…保護キャップ、３Ｒ…後側回転ブラシ、６Ｒ…後側ブラシ回転軸、３２Ｒ…後側ブラシ歯車、３３Ｒ…後側ブラシ用歯車、３４Ｒ…後側ブラシ用チエン、３５Ｒ…後側保護キャップ。[0001]
[Industrial application fields]
The present invention relates to a rotating brush mounting structure used in an apparatus for supplying soil to a seedling container or the like.
[0002]
[Prior art]
Although not conventionally known, Japanese Patent Application No. 2000-247261 of the prior application has a pair of left and right rotating arms attached to both ends of the brush rotating shaft, and each rotating arm is rotatably attached to the transfer table. The traction support members are attached to the adjustment screw shafts having the dials, and the left and right adjustment screw shafts are connected by the connection shafts. The connection shafts are connected to the upper part of the side plate provided on the transfer table. There has been proposed a configuration in which a switching engagement step portion having a different height is selectively engaged and supported.
[0003]
[Problems to be solved by the invention]
In the prior art, the fine adjustment mechanism is devised to widen the change range, but there is a problem in that only one rotating brush is provided.
That is, the prior art has no idea of arranging brushes in front and back, so it has rotating arms on the left and right, and if it is arranged side by side as it is, there is a need for space for assembly and assembly, etc. There is a problem that the installation interval becomes longer and the overall length becomes longer.
In this respect, if the device is slightly devised, the installation interval before and after the rotating brush can be shortened while ensuring a sufficient work space for assembly and assembly.
[0004]
OBJECT OF THE INVENTION
Realization of front and back rotation brushes with shorter installation intervals and work space.
[0005]
[Means for Solving the Problems]
In the present invention, a pair of left and right frame side plates 16 are juxtaposed on the transfer table 1 at a predetermined interval on the transfer table 1 above the transfer table 1 for transferring the seedling container A. The brush rotation shaft 6 is mounted so as to be movable up and down, and a transmission mechanism T for transmitting the rotation from the transfer table 1 is provided at one of the left and right ends of the brush rotation shaft 6 of the front rotary brush 3 and the other end. the protective cap 35 respectively provided, the transmission mechanism T for transmitting the rotation from the transfer table 1 to the other end of the brush rotation axis 6R of the rotary brush 3R of the rear, the rear protective caps 35R respectively provided on one end, front and rear A pair of traction support members 18 are respectively attached to both ends of the brush rotation shaft 6, and each traction support member 18 is vertically attached to an adjustment screw shaft 19 having a dial 22, and the left and right adjustment screw shafts 19 are connected by a connecting shaft 21. And the frame side plate 6 height difference to seedling containers rotary brush which the switching engagement Godan unit 26 provided with a height adjusting device 15 provided plurality in the longitudinal direction of the connecting shaft 21 to the upper support to engage from above the and It is a thing.
In the present invention, the transmission mechanism T is provided with a brush gear 32 or a rear brush gear 32R on the brush rotating shaft 6, and the brush gear 32R or the rear brush gear 32R is provided with a brush provided on the rotating shaft 8 of the transfer table 1. This is a rotating brush for a seedling container constructed by hanging a chain 34 between the gears for use.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. 1 is a transfer stand for transferring a seedling container A, 2 is a transfer roll for transferring a seedling container A provided on the transfer stand 1, and 3 is provided above the transfer stand 1. It is a rotary brush, and the rotary brush 3 leveles the floor soil 4 supplied to the seedling raising container A while scraping a predetermined amount.
The rotating brush 3 has both ends of the brush rotating shaft 6 mounted on a pair of left and right frame side plates 16. A pair of left and right frame side plates 16 is provided on the transfer table 1, and an insertion hole 17 is formed in the frame side plate 16 for inserting the brush rotation shaft 6. The insertion hole 17 is a rotating brush according to the seedling container A having different heights. Allow 3 to go up and down.
Lower portions of the traction support members 18 are respectively attached to both ends of the brush rotation shaft 6 protruding laterally from the frame side plate 16, and the lower portions of the adjustment screw shafts 19 are screwed onto the upper portions of the traction support members 18. Reference numeral 20 denotes a screwing nut fixedly welded to the traction support member 18. When the adjustment screw shaft 19 is rotated, the traction support member 18 moves up and down with respect to the adjustment screw shaft 19.
[0007]
The upper part of the adjusting screw shaft 19 is rotatably attached to the connecting shaft 21 in the left-right direction. 22 is a dial provided at the upper end of the adjusting screw shaft 19, and 23 is an engaging nut provided on the adjusting screw shaft 19 below the connecting shaft 21. When the dial 22 is lifted by the engaging nut 23, the connecting shaft 21 is moved upward. Move. A lock nut 24 is screwed onto the adjusting screw shaft 19 below the screw nut 20.
The traction support member 18 is provided with a spring 25 between the traction support member 18 and a fixed portion such as the transfer table 1 and is always urged so as to pull the traction support member 18 downward.
[0008]
Thus, on the upper edge of the frame side plate 16, a switching engagement step portion 26 for engaging the connecting shaft 21 is arranged on a plurality of arcs, and any one of the plurality of switching engagement step portions 26 is provided. Is selectively engaged.
In this case, among the switching engagement step portions 26, the center switching engagement step portion 26a where the connecting shaft 21 is positioned vertically above the brush rotating shaft 6 is used as a reference step portion, and in this state, the left and right adjustment screws The shaft 19 is rotated so that the lower end of the rotating brush 3 is brought into contact with the upper surface of the front wall 27 of the seedling raising container A, the scraping amount is set to “zero”, and the switching is performed in the order of low in the front and rear sides of the center switching engagement step portion 26a. The engaging step portion 26 is formed, the connecting shaft 21 is engaged with the switching engaging step portion 26, and the lower end of the rotary brush 3 is positioned below the upper surface of the front wall front wall 27 of the seedling container A, Scrape a predetermined amount of floor soil.
A brush cover 30 is provided on the rear side of the rotating brush 3, and the brush cover 30 is positioned below the connecting shaft 21 at a predetermined interval so that the connecting shaft 21 can be lifted by inserting an operator's hand. I have to.
[0009]
1 and 2 show the rotating brush 3 alone for easy understanding, but in FIG.
In this case, since the rotating brush 3 is attached by mounting both ends of the brush rotating shaft 6 on the pair of left and right frame side plates 16, the front brush is attached to either the left or right end of the brush rotating shaft 6 of the front rotating brush 3. A gear 32 is provided, and a chain 34 is provided between the front brush gear 32 and the front brush gear 33 provided on the rotation shaft (rotation shaft of the transfer roll 2) 8 of the transfer table 1, and the brush of the front rotary brush 3 is provided. A protective cap 35 is attached to the left or right other end of the rotating shaft 6.
[0010]
On the other hand, the other side of the rear brush rotating shaft 6R of the rear rotating brush 3R on the opposite side to the side where the front brush gear 32 of the front rotating brush 3 is provided (on one end of the front rotating brush 3) A brush gear 32R is provided, a rear brush chain 34R is provided between the rear brush gear 32R and the rear brush gear 33R provided on the rotary shaft 8, and either the left or right of the rear brush rotary shaft 6 is provided. A rear protective cap 35R is attached to one end.
That is, a transmission mechanism T for transmitting the rotation from the transfer table 1 is provided at one of the left and right ends of the brush rotation shaft 6 of the rotary brush 3, but only the protective cap 35 is provided at the other end without providing the transmission mechanism T. The transmission mechanism T and the rear protection cap 35R are arranged on the opposite side in the rear rotating brush 3, so that the front and rear installation intervals of the rotating brush 3 are shortened, and the periphery of the transmission mechanism T is widened. Facilitates assembly and assembly work.
In FIG. 7, the heights of the front and rear brushes 3, 3 </ b> R are different from each other, but this is for facilitating understanding of the drawing, and does not show the actual use state. However, depending on various conditions such as soil properties, supply amount, scraping amount, etc., lowering the front rotating brush 3 relative to the rear rotating brush 3R may improve the scraping accuracy. The setting is not a requirement of the present application.
[0011]
In addition, in order to prevent the loosening of the chain accompanying the up and down of the brush rotation shaft 6 in the embodiment, it is possible to implement it by simply providing a chain between the brush rotation shaft 6 and the rotation shaft 8 of the transfer table 1. Rotating arms 36 are provided between the brush rotating shaft 6 and the rotating shaft 8 of the transfer table 1, but this is not a requirement.
Therefore, when the switching engagement step portion 26 of the frame side plate 16 is formed so as to be alternately lower on the front and rear sides with respect to the center switching engagement step portion 26a, the accuracy of setting the scraping amount is improved. Is preferred.
The brush rotation shaft 6 moves on an arc line centering on the rotation axis 8 and on the arc line centering on the connection shaft 21. The position of the brush rotating shaft 6 changes up and down, and the step of each switching engaging step 26 is not proportional to the descending amount of the brush rotating shaft 6.
[0012]
That is, when the position of the first brush rotating shaft 6 is changed in accordance with the seedling raising container A having a different height, the center switching engagement step portion 26a is obtained when engaged with each switching engagement step portion 26. The amount of lowering with respect to is not constant, and this shift is formed by alternately lowering each switching engagement step 26 on the front and rear sides with reference to the center switching engagement step 26a. The accuracy of setting the scraping amount is improved. 26b is a first switching engagement step, 26c is a second switching engagement step, 26d is a third switching engagement step, and 26e is a fourth switching engagement step. The height of the rotating brush 3 is lowered so that the number of the brushes increases.
[0013]
For this reason, among the switching engagement step portions 26, the center switching engagement step portion 26a in which the brush rotating shaft 6 and the connecting shaft 21 are vertically positioned is used as a reference step portion, and in this state, the left and right adjustment screws The shaft 19 is rotated to bring the lower end of the rotating brush 3 into contact with the upper surface of the front wall 27 of the front wall of the seedling container A, and the scraping amount is adjusted to be “zero”. The switching engagement step portion 26 that is lower than the center switching engagement step portion 26a is formed on the front and rear sides.
Therefore, the lower end of the rotary brush 3 is positioned below the upper surface of the front wall 27 of the seedling raising container A by engaging with the switching engagement step portion 26 lower than the “zero setting” center switching engagement step portion 26a. Scrape a predetermined amount of floor soil.
[0014]
In this case, the switching engagement step portion 26 of the embodiment is formed so as to be alternately lowered on the front and rear sides with respect to the center switching engagement step portion 26a. The change in the amount of movement of the brush rotating shaft 6 that moves in an arc around two points is minimized to improve the accuracy of setting the scraping amount. That is, as an example, when the four-step switching engagement step portion 26 of 7 mm, 10 mm, 12 mm, and 15 mm is formed, 15 mm (fourth switching engagement step portion 26 b), 12 mm (fourth switching engagement step portion 26 b) from the rear side view. Three switching engagement step portions 26b), 0 mm (center switching engagement step portion 26a), 7 mm (first switching engagement step portion 26b), and 10 mm (second switching engagement step portion 26b). Therefore, the shift between the switching engagement step portions 26 is also reduced.
[0015]
In side view, 15 mm (fourth switching engagement step 26 b), 10 mm (second switching engagement step 26 b), 0 mm (center switching engagement step 26 a), 7 mm (first switching engagement) The stepped portion 26b) and 12 mm (third switching engagement stepped portion 26b) may be formed in this order.
Since the traction support member 18 is always pulled downward by the spring 25, when the adjustment screw shaft 19 is rotated and the traction support member 18 is lowered, the traction support member 18 is lowered by the elasticity of the spring 25 and is opposite. When the adjusting screw shaft 19 is reversely rotated, the pulling support member 18 is moved upward against the elasticity of the spring 25.
In this case, since the lower part of the adjustment screw shaft 19 is screwed onto the upper part of the traction support member 18, when the dial 22 is rotated, the traction support member 18 moves up and down with respect to the adjustment screw shaft 19.
[0016]
Since the adjusting screw shaft 19 below the connecting shaft 21 is provided with an engaging nut 23, when the dial 22 is lifted, the connecting shaft 21 is moved upward by the engaging nut 23, and not only the connecting shaft 21, The scraping amount of the rotating brush 3 can be changed by lifting the connecting shaft 21 with the left and right dials 22 and engaging with the other switching engaging step 26.
Further, since the lock nut 24 is screwed onto the adjusting screw shaft 19 below the screwing nut 20 fixed to the traction support member 18, once it is adjusted, no deviation occurs.
Further, if the insertion hole 17 for inserting the brush rotation shaft 6 provided in the frame side plate 16 is formed in an arc shape with the rotation shaft 8 as the center, it is preferable that the brush rotation shaft 6 is smoothly moved up and down.
As described above, the height adjusting device 15 is provided between the frame side plate 16 and the brush rotation shaft 6, and the height adjusting device 15 is provided on the connecting shaft 21, the dial 22, the spring 25, and the upper edge of the frame side plate 16. And a plurality of switching engaging step portions 26.
[0017]
[Action]
Next, the operation will be described.
A pair of left and right frame side plates 16 are provided above the transfer table 1 for transferring the seedling container A, and the rotary brush 3 is mounted on the pair of frame side plates 16, and the rotary brush 3 is attached to the brush rotating shaft 6. A member 18, an adjusting screw shaft 19 having a dial 22 for moving the pulling support member 18 up and down, a connecting shaft 21 connecting the left and right adjusting screw shafts 19, and a connecting shaft 21 formed on the frame side plate 16 provided on the transfer table 1. Since the height adjusting device 15 having the switching engagement step portion 26 that engages and supports the connecting shaft 21 is engaged with any of the switching engagement step portions 26, The adjusting screw shaft 19 is rotated so that the lower end of the rotating brush 3 is brought into contact with the upper surface of the front wall 27 of the seedling raising container A, the scraping amount is set to “zero”, and then the dial 22 or the connecting shaft 21 is held upward. The switching engagement step portion is lifted When the connecting shaft 21 is engaged with another switching engagement step portion 26 lower than 6, the traction support member corresponds to the height of the first switching engagement step portion 26 and the next switching engagement step portion 26. 18 descends, whereby the brush rotating shaft 6 also descends, and the rotating brush 3 is set to a predetermined height.
[0018]
In this state, when the seedling container A to which the floor soil has been supplied is supplied to the transfer table 1, it is transferred by the transfer roll 2 and scraped off by a predetermined amount when passing under the rotating brush 3.
Therefore, when changing the scraping amount, when the connecting shaft 21 is engaged with another switching engaging step portion 26 among the plurality of switching engaging step portions 26, the connecting shaft 21 is thereby adjusted. The shaft 19 is moved up and down, the adjusting screw shaft 19 moves the traction support member 18 up and down, and the traction support member 18 moves the brush rotating shaft 6 up and down to change the height of the rotating brush 3 and change the scraping amount.
Further, when using the seedling raising container A having different heights, as described above, the left and right adjusting screw shafts 19 are moved with the connecting shaft 21 engaged with any of the switching engaging step portions 26. Rotate to bring the lower end of the rotating brush 3 into contact with the upper surface of the front wall 27 of the seedling container A, set the scraping amount to “zero”, and then hold the dial 22 or the connecting shaft 21 and lift it upward to switch The connecting shaft 21 is engaged with another switching engagement step portion 26 lower than the engagement step portion 26, and the rotary brush 3 is set to a predetermined height.
[0019]
In this case, a plurality of the switching engagement step portions 26 are arranged on the arc at the upper edges of the pair of left and right frame side plates 16 provided on the transfer table 1, so that the space for forming the switching engagement step portion 26 is formed. Therefore, the change range can be widened.
That is, since the switching engaging step 26 is provided on the fixed frame side plate 16, the space can be widened.
In the embodiment shown in FIG. 7 and subsequent figures, the rotary brushes 3 are arranged side by side, and a transmission mechanism T is provided at one of the left and right ends of the brush rotation shaft 6 of the rotary brush 3, but the transmission mechanism is provided at the other end side. Since T is not provided and only the protective caps 35 and 35R are provided, and the transmission mechanism T is arranged on the opposite side in the front and rear rotary brushes 3, the distance between the front and rear installation of the rotary brush 3 is shortened, and the transmission mechanism is provided. The surroundings of T are widened to facilitate operations such as assembly and assembly.
[0020]
That is, the front brush arm 31 and the transmission mechanism T are provided at the left end of the brush rotating shaft 6 of the front rotating brush 3, and the protective cap 35 is attached to the right end of the front brush rotating shaft 6, while the rear rotating brush is provided. A rear brush arm 31R and a transmission mechanism T are provided at the right end of the 3R brush rotation shaft 6R (left end reference of the front rotation brush 3), and a rear protective cap 35R is attached to the left end of the rear brush rotation shaft 6. Therefore, the periphery of the front and rear protective caps 35 and 35R can be used as a work space, and the work such as assembly and assembly of the rotary brush 3 can be facilitated even if the interval between the front and rear of the rotary brush 3 is shortened.
[0021]
【effect】
In the present invention, a pair of left and right frame side plates 16 are juxtaposed on the transfer table 1 at a predetermined interval on the transfer table 1 above the transfer table 1 for transferring the seedling container A. The brush rotation shaft 6 is mounted so as to be movable up and down, and a transmission mechanism T for transmitting the rotation from the transfer table 1 is provided at one of the left and right ends of the brush rotation shaft 6 of the front rotary brush 3 and the other end. the protective cap 35 respectively provided, the transmission mechanism T for transmitting the rotation from the transfer table 1 to the other end of the brush rotation axis 6R of the rotary brush 3R of the rear, the rear protective caps 35R respectively provided on one end, front and rear A pair of traction support members 18 are respectively attached to both ends of the brush rotation shaft 6, and each traction support member 18 is vertically attached to an adjustment screw shaft 19 having a dial 22, and the left and right adjustment screw shafts 19 are connected by a connecting shaft 21. And the frame side plate 6 height difference to seedling containers rotary brush which the switching engagement Godan unit 26 provided with a height adjusting device 15 provided plurality in the longitudinal direction of the connecting shaft 21 to the upper support to engage from above the and As a result, the interval between the front and rear of the rotary brush 3 is shortened to facilitate the assembly and assembly of the rotary brush 3, and the change accuracy is improved.
In the present invention, the transmission mechanism T is provided with a brush gear 32 or a rear brush gear 32R on the brush rotating shaft 6, and the brush gear 32R or the rear brush gear 32R is provided with a brush provided on the rotating shaft 8 of the transfer table 1. Since the rotating brush for seedling containers is constructed by hanging the chain 34 between the rotating gears, the assembly and assembly of the rotating brush 3 are facilitated.
[Brief description of the drawings]
FIG. 1 is a side view of a single rotating brush for ease of understanding.
FIG. 2 is a front view of the same.
FIG. 3 is a side view of the frame side plate.
FIG. 4 is a partial front view of the height adjusting device.
FIG. 5 is a sectional view showing the same adjustment state.
FIG. 6 is a partial perspective view of the height adjusting device.
FIG. 7 is a side view of rotating brushes arranged side by side.
FIG. 8 is a plan view of the same unfolded state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Transfer stand, 2 ... Transfer roll, 3 ... Rotating brush, 4 ... Floor soil, 6 ... Brush rotating shaft, 7 ... Mounting arm, 8 ... Rotating shaft, 9 ... Gear, 15 ... Height adjusting device, 16 ... Frame Side plate, 17 ... insertion hole, 18 ... pulling support member, 19 ... adjusting screw shaft, 20 ... screwing nut, 21 ... connecting shaft, 22 ... dial, 23 ... engaging nut, 24 ... locking nut, 25 ... spring, 26 ... Switching engagement step portion, 27 ... Front wall, 30 ... Brush cover, 31 ... Front brush arm, 32 ... Front brush gear, 33 ... Front brush gear 33, 34 ... Chain, 35 ... Protective cap, 3R ... rear rotating brush, 6R ... rear brush rotating shaft, 32R ... rear brush gear, 33R ... rear brush gear, 34R ... rear brush chain, 35R ... rear protective cap.

Claims

Above the transfer table 1 for transferring the seedling container A, a pair of left and right frame side plates 16 are juxtaposed on the transfer table 1 at a predetermined interval in the front and rear, and each frame side plate 16 has a brush rotating shaft 6 of the rotary brush 3. Are respectively mounted so as to be movable up and down, a transmission mechanism T for transmitting the rotation from the transfer table 1 to one of the left and right ends of the brush rotating shaft 6 of the front rotating brush 3, and a protective cap 35 to the other end. respectively provided, the transmission mechanism T for transmitting the rotation from the transfer table 1 to the other end of the brush rotation axis 6R of the rotary brush 3R of the rear, the rear protective caps 35R at one end respectively provided before and after the brush rotation axis A pair of traction support members 18 are attached to both ends of the frame 6, each traction support member 18 is attached to an adjustment screw shaft 19 having a dial 22 so as to be freely movable up and down, and the left and right adjustment screw shafts 19 are connected by a connection shaft 21, Top of side plate 16 The connecting shaft 21 the height difference to seedling containers rotary brush which the switching engagement Godan unit 26 provided with a height adjusting device 15 provided plurality in the longitudinal direction of the supporting by engaging from above.

In claim 1, the transmission mechanism T is provided with a brush gear 32 or a rear brush gear 32R on the brush rotation shaft 6, and is provided on the rotation shaft 8 of the transfer table 1 with the brush gear 32 or the rear brush gear 32R. A rotating brush for a seedling container constructed by hanging a chain 34 between the brush gear.