JP3996275B2

JP3996275B2 - Rice seedling presser structure

Info

Publication number: JP3996275B2
Application number: JP21237398A
Authority: JP
Inventors: 雄一小川
Original assignee: Yanma Agricultural Equipment Co Ltd
Current assignee: Yanma Agricultural Equipment Co Ltd
Priority date: 1998-07-28
Filing date: 1998-07-28
Publication date: 2007-10-24
Anticipated expiration: 2018-07-28
Also published as: JP2000041445A

Description

【０００１】
【発明の属する技術分野】
本発明は、田植機の苗押え構造に関するものである。
【０００２】
【従来の技術】
従来、田植機の苗押え構造の一形態として、苗載台に形成した左右一対の縦リブの上部と下部に、それぞれ左右方向に伸延する上下一対の苗押え体支持部材を左右一対の上・下側ステーを介して横架し、これら上・下側苗押え体支持部材間に、苗載台の表面に沿って上下方向に伸延する複数の苗押え体を左右方向に間隔を開けて架設し、これら苗押え体により苗載台上に載置した苗マットを押えて、同苗マットが浮上がらないようにしたものがある。
【０００３】
そして、上側苗押え体支持部材は、左右一対の上側ステーに着脱自在に取付けると共に、下側苗押え体支持部材は、左右一対の下側ステーに枢支している。
【０００４】
このようにして、上側苗押え体支持部材を左右一対の上側ステーより取外すと共に、同苗押え体支持部材を介して苗押え体を下側苗押え体支持部材を中心に後方へ、すなわち、苗載台から離隔する方向へ回動させて、同苗載台上に残った苗マットを回収することができるようにしている。
【０００５】
【発明が解決しようとする課題】
ところが、上記した苗押え構造では、苗載台上に残った苗マットを回収する際に、同苗マットに、後方へ回動させた苗押え体の下部側が近接しているために、同苗マットを容易に取出すことができず、かかる回収作業が煩雑になっている。
【０００６】
【課題を解決するための手段】
そこで、本発明では、苗載台に形成した左右一対の縦リブの上部と下部に、それぞれ左右方向に伸延する上下一対の苗押え体支持部材を左右一対の上・下側ステーを介して横架し、これら上・下側苗押え体支持部材間に、苗載台の表面に沿って上下方向に伸延する複数の苗押え体を左右方向に間隔を開けて架設し、これら苗押え体により苗載台上に載置した苗マットを押えて、同苗マットが浮上がらないようにした田植機の苗押え構造において、上側ステーは、縦リブの上部に突設した固定側ステー形成体と、同固定側ステー形成体の先端部に基端部を枢支して、上下回動自在とした可動側ステー形成体とを具備し、同可動側ステーに上側苗押え体支持部材を、その軸線廻りに回動自在かつ着脱自在に取付ける一方、下側ステーは、縦リブの下部に突設して、同下側ステーの上端部に下側苗押え体支持部材を、その軸線廻りに回動自在かつ着脱自在に取付け、可動側ステー形成体は、固定側ステー形成体の先端部に基端部を弾性手段により上方へ回動付勢させて枢支し、同可動側ステー形成体の上側縁部に、複数の係合用凹部を長手方向に間隔を開けて形成し、同係合用凹部に上側苗押え体支持部材を係合させる一方、縦リブの下部に突設した下側ステーは、苗載台の表面と略直交する方向に伸縮調節自在とし、可動側ステー形成体の係合用凹部に係合した上側苗押え支持部材と、可動側ステー形成体との間に、係合保持体を着脱自在に介設し、係合保持体は、上側苗押え体支持部材に回動自在かつ摺動自在に嵌合した嵌合片と、同嵌合片に突設して可動側ステー形成体に係止可能とした係止片とを具備することを特徴とする田植機の苗押え構造である。
【０００７】
また、本発明は、次の構成にも特徴を有する。
【００１１】
下側苗押え体支持部材は、下側ステーの先端部にクリップを介して取付けたこと。
【００１２】
【発明の実施の形態】
以下に、本発明の実施の形態について説明する。
【００１３】
すなわち、本発明に係る田植機の苗押え構造は、基本的構造として、苗載台に形成した左右一対の縦リブの上部と下部に、それぞれ左右方向に伸延する上下一対の苗押え体支持部材を左右一対の上・下側ステーを介して横架し、これら上・下側苗押え体支持部材間に、苗載台の表面に沿って上下方向に伸延する複数の苗押え体を左右方向に間隔を開けて架設し、これら苗押え体により苗載台上に載置した苗マットを押えて、同苗マットが浮上がらないようにしている。
【００１４】
そして、特徴的構造として、上側ステーは、縦リブの上部に突設した固定側ステー形成体と、同固定側ステー形成体の先端部に基端部を枢支して、上下回動自在とした可動側ステー形成体とを具備し、同可動側ステーに上側苗押え体支持部材を、その軸線廻りに回動自在かつ着脱自在に取付ける一方、下側ステーは、縦リブの下部に突設して、同下側ステーの上端部に下側苗押え体支持部材を、その軸線廻りに回動自在かつ着脱自在に取付けている。
【００１５】
このようにして、上側苗押え体支持部材を上側ステーより取外すことにより、下側苗押え体支持部材を中心にして、苗押え体の上部側を後方へ回動させて苗載台より離隔させることができる。
【００１６】
従って、苗載台上に残った大量の苗マットを、上方より容易に取出して回収することができる。
【００１７】
また、下側苗押え体支持部材を下側ステーより取外すことにより、上側苗押え体支持部材を中心にして、苗押え体の下部側を上方へ回動させて苗載台より離間させることができる。
【００１８】
この際、上側ステーは、固定側ステー形成体の先端部に基端部を枢支した可動側ステー形成体を、上方へ回動させることにより、苗押え体を苗載台の上面に沿わせて上方へ移動させることができ、その後に、苗押え体の下部側を、可動側ステー形成体に取付けた上側苗押え体支持部材を中心に上方へ回動させることができる。
【００１９】
従って、苗載台上に残った少量の苗マットを、下方より容易に取出して回収することができる。
【００２０】
しかも、苗押え体は、上方へ移動させながら、下部側を上方へ回動させることができるために、苗押え体の下端部を苗載台の下端部まで配置して、苗マットを下端部まで確実に押え付け可能とした場合に、苗載台の下端部に補助苗押え体等を配設している場合にも、同補助苗押え体等に苗押え体の下端部を干渉させることなく、苗押え体の下部側を上方へ回動させることができる。
【００２１】
さらに、可動側ステー形成体は、固定側ステー形成体の先端部に基端部を弾性手段により上方へ回動付勢させて枢支し、同可動側ステー形成体の上側縁部に、複数の係合用凹部を長手方向に間隔を開けて形成し、同係合用凹部に上側苗押え体支持部材を係合させる一方、縦リブの下部に突設した下側ステーは、苗載台の表面と略直交する方向に伸縮調節自在としている。
【００２２】
このようにして、可動側ステー形成体を弾性手段の付勢力に抗して下方へ回動させることにより、同可動側ステー形成体の係合用凹部に係合させた上側苗押え体支持部材を係合解除すると共に、他の所望の係合用凹部に上側苗押え体支持部材を係合させる一方、下側苗押え体支持部を支持する下側ステーを適宜伸縮調節することにより、苗押え体と苗載台の表面との間隔調節を行なうことができて、苗マットの肉厚に適応させた苗押え体の位置調節が簡単に行なえる。
【００２３】
また、可動側ステー形成体の係合用凹部に係合した上側苗押え支持部材と、可動側ステー形成体との間に、係合保持体を着脱自在に介設している。
【００２４】
このようにして、係合保持体により上側苗押え体支持部材を係合用凹部に確実に係合・保持させることができる。
【００２５】
そして、係合保持体は、上側苗押え体支持部材に回動自在かつ摺動自在に嵌合した嵌合片と、同嵌合片に突設して可動側ステー形成体に係止可能とした係止片とを具備している。
【００２６】
このようにして、係止片を可動側ステー形成体に係止・解除操作することにより、同可動側ステー形成体から上側苗押え体支持部材を楽に着脱することができる。
【００２７】
また、下側苗押え体支持部材は、下側ステーの先端部にクリップを介して取付けている。
【００２８】
このようにして、下側苗押え体支持部材を下側ステーより楽に取外すことができて、苗押え体の上下回動操作を迅速に行なうことができる。
【００２９】
【実施例】
以下に、本発明の実施例を図面を参照しながら説明する。
【００３０】
図１及び図２に示すＡは、本発明に係る田植機であり、同田植機Ａは、走行部１の後方に植付部２を昇降機構３を介して連結している。
【００３１】
走行部１は、前後方向に伸延する機体フレーム10の前部に原動機部11を設けると共に、後部に原動機部11と連動連結したミッション部12を設け、これら原動機部11とミッション部12との間に運転部13を配設し、同運転部13の下方に位置する機体フレーム10の部分にフロントアクスルケース14を設けて、同フロントアクスルケース14の左右側部にそれぞれ前車輪15,15 を取付ける一方、機体フレーム10の後端部にリヤアクスルケース16を設けて、同リヤアクスルケース16の左右側部にそれぞれ後車輪17,17 を取付けている。
【００３２】
そして、運転部13は、原動機部11の後部にハンドルコラム20を一体的に立設し、同ハンドルコラム20の上端部にハンドル21をハンドル支軸22を介して取付け、同ハンドル21の後方位置に座席23を配設し、これらハンドル21と座席23との間にステップ部24を張設している。
【００３３】
また、ステップ部24は、後端縁部を上方へ立上げると共に、後方へ伸延して座席支持部25を形成し、同座席支持部25の後端縁部をさらに後方へ延設して、後側ステップ部26を形成し、同後側ステップ部26の左右側方にそれぞれ後車輪フェンダ部27,27 を張出し状に一体成形している。
【００３４】
植付部２は、植付ミッションケース30の後部に植付伝動ケース31を連動連設すると共に、同植付伝動ケース31の左右側方にも、それぞれ植付ミッションケース30に軸ケース32,32 を介して連動連結した植付伝動ケース31,31 を配設して、これら植付伝動ケース31上に苗載台37を前高後低の傾斜状に載設し、同苗載台37の下端縁部の直後方位置に、植付爪33を各植付伝動ケース31の後端部に連動連結して配置し、各植付伝動ケース31の下方位置にはセンターフロート34とサイドフロート35,35 を配設して、複数条の苗植付けが行なえるようにしている。
【００３５】
そして、苗載台37は、図２にも示すように、矩形板状の苗載台本体50の上面に、各条毎に苗マットを規制・案内するための縦リブ51を左右幅方向に一定の間隔を開けて突設し、所定の縦リブ51,51 間には苗マット押え手段52を架設して、同苗マット押え手段52により各苗マットを苗載台本体50側に押えて、各苗マットが浮上がらないようにしており、また、所定の縦リブ51,51 の下部間には、補助苗マット押え手段53を架設して、各苗マットの下端部を苗載台本体50側に押えて、植付爪33による苗ブロックの切削・取出しが確実に行なえるようにしている。54は苗マット受体、95は延長苗載台である。
【００３６】
昇降機構３は、前後方向に伸延するトップリンク40と左右一対のロワリンク41,41 と昇降用シリンダ42とを具備して、植付部２を昇降自在に連結している。
【００３７】
上記のような構成において、本発明の要旨は、苗押え構造、すなわち、苗マットを押える苗マット押え手段52の構造にあり、以下に図２〜図１０を参照しながら説明する。
【００３８】
苗マット押え手段52は、図２、図８及び図９に示すように、三条分の苗マットを押えるべく、左側端に位置する縦リブ51と、左側から四番目の縦リブ51との間、そして、この四番目の縦リブ51と右側端に位置する縦リブ51との間にそれぞれ介設している。
【００３９】
かかる苗マット押え手段52を支持する左右一対の縦リブ51,51 の上部と下部には、それぞれ左右一対の上側ステー55,55 と左右一対の下側ステー56,56 とを突設し、左右一対の上側ステー55,55 間に、左右方向に伸延する棒状の上側苗押え体支持部材57を横架する一方、左右一対の下側ステー56,56 間に、左右方向に伸延する棒状の下側苗押え体支持部材58を横架し、これら上・下側苗押え体支持部材57,58 間に、苗載台本体50の表面に沿って上下方向に伸延する複数の苗押え体59を左右方向に間隔を開けて架設し、これら苗押え体59により苗載台本体50上に載置した苗マットを上方より押えて、同苗マットが苗載台本体50より浮上がり状に離れないようにしている。
【００４０】
上側ステー55は、図３及び図４に示すように、縦リブ51の上部に前後一対の支持板60,61 を固定ボルト62,62 により固設し、後側の支持板61より後方へ向けて固定側ステー形成体63を突設し、同固定側ステー形成体63の先端部に、可動側ステー形成体64の基端部を、左右方向に軸線を向けた枢軸65により枢支して、同可動側ステー形成体64を上下回動自在となすと共に、枢軸65に弾性手段としてのコイルバネ66を巻回し、同コイルバネ66の一端66a を固定側ステー形成体63の先端部に係止片63a を介して係止し、かつ、他端66b を可動側ステー形成体64の基端部に係止片64a を介して係止して、同コイルバネ66により可動側ステー形成体64を上方へ回動付勢している。
【００４１】
可動側ステー形成体64は、上側縁部に四個の係合用凹部67,67,67,67 を長手方向に間隔を開けて形成し、各係合用凹部67に上側苗押え体支持部材57を係合可能とし、また、下側縁部には、断面略Ｕ字状に折り返して形成した係止受片68を設けて、同係止受片68に、上側苗押え体支持部材57を可動側ステー形成体64の係合用凹部67に係合・保持するための係合保持体69を係止するようにしている。
【００４２】
係合保持体69は、図５及び図６にも示すように、上面開口の断面略Ｃ字状に形成した嵌合片70と、同嵌合片70の左側端部より後外方へ突設して弾性復元力を有する係止片71と、同係止片71より下方へ突設した操作片72と、嵌合片70の右側端部より後方へ突設した指掛り片73と、嵌合片70の外周面に上方より着脱自在に嵌合するべく板バネにより断面略Ｃ字状に形成した弾性嵌合片74とを具備している。57a は抜け止め用突片、71a は補強用リブである。
【００４３】
このようにして、係合保持体69は、上側苗押え体支持部材57に嵌合片70を下方より嵌合すると共に、同嵌合片70の外周面に弾性嵌合片74を上方より嵌合して、嵌合片70を上側苗押え体支持部材57に回動自在かつ摺動自在に取付けることができる。
【００４４】
そして、可動側ステー形成体64の係合用凹部67に上側苗押え体支持部材57の端部を係合させると共に、可動側ステー形成体64の係止受片68に係止片71を下方より係止させることにより、上記係合用凹部67に上側苗押え体支持部材57を係合・保持させることができる。
【００４５】
また、上側苗押え体支持部材57の係合を解除する際には、指掛り片73に中指等を掛けて、操作片72を親指等により操作して、係止片71を係止受片68より係止解除し、同状態にて係合保持体69を内側方へ摺動移動させれば、上側苗押え体支持部材57を係合用凹部67より上方へ取外すことができる。
【００４６】
さらに、係合保持体69を上側押え体支持部材57より取外す場合には、弾性嵌合片74を嵌合片70より上方に取外せば、嵌合片70を上側苗押え体支持部材57より下方へ取外すことができる。
【００４７】
下側ステー56は、図７及び図８にも示すように、縦リブ51の下部に支持板75を固設し、同支持板75より筒状の固定側ステー形成体76を突設し、同固定側ステー形成体76中に棒状の可動側ステー形成体77の基端部77a を苗載台本体50に対して進退摺動自在に挿通すると共に、同基端部77a を固定側ステー形成体76に取付けた調節用ボルト78により固定・解除可能として、可動側ステー形成体77を進退位置調節（伸縮調節）可能としており、可動側ステー形成体77は、中途部77b を下方へ屈曲させ、さらに、先端部77c を後方へ屈曲させて、同先端部77c に板バネにより形成した挾持式のクリップ79を取付けている。
【００４８】
そして、クリップ79に下側苗押え体支持部材58の端部をその軸線廻りに回動自在かつ着脱自在に取付けている。
【００４９】
また、可動側ステー形成体77の中途部77b には、左右方向に伸延するストッパー片80を取付ける一方、下側苗押え体支持部材58の端部に当接片81を下方へ向けて突設しており、同当接片81は、図７及び図９に示す側面視にて時計廻りに下側苗押え体支持部材58が回動した際に、ストッパー片80に当接して、同下側苗押え体支持部材58の回動を規制するようにしている。
【００５０】
苗押え体59は、図９及び図１０にも示すように、上側苗押え体支持部材57に先端部を連設した上部側支持片85と、同上部側支持片85の基端部に上部を連設した苗押え片86と、同苗押え片86の下端部に基端部を連設すると共に、下側苗押え体支持部材58に先端部を連設した下部側支持片87とから形成して、苗押え片86が直接苗マットに当接して、同苗マットの浮上がりを防止するようにしている。
【００５１】
そして、下部側支持片87は、下側苗押え体支持部材58よりも下方に配置して、同下部側支持片87の中途部と下側苗押え体支持部材58との間に前記苗マット受体54を介設している。
【００５２】
このようにして、上側苗押え体支持部材57を上側ステー55,55 より取外すことにより、下側苗押え体支持部材58を中心にして、苗押え体59の上部側を後方へ回動させて苗載台本体50より離隔させることができる。
【００５３】
この際、下側苗押え体支持部材58の回動は、ストッパー片80に当接片81が当接して規制される。
【００５４】
従って、苗載台本体50上に残った苗マットを、上方より取出して回収することができる。
【００５５】
また、下側苗押え体支持部材58を下側ステー56,56 より取外すことにより、上側苗押え体支持部材57を中心にして、苗押え体59の下部側を上方へ回動させて苗載台本体50より離隔させることができる。
【００５６】
この際、上側ステー55は、固定側ステー形成体63の先端部に基端部を枢支した可動側ステー形成体64が、コイルバネ66により上方へ回動付勢されているために、苗押え体59が苗載台本体50の上面に沿って上方へ移動され、その後に、苗押え体59の下部側を、可動側ステー形成体64に取付けた上側苗押え体支持部材57を中心に、上方へ回動させることができる。
【００５７】
従って、苗載台本体50上に残った苗マットを、下方より取出して回収することができる。
【００５８】
しかも、苗押え体59は、上方へ移動させながら、下部側を上方へ回動させることができるために、苗押え体59の下端部を苗載台本体50の下端部まで配置して、苗マットを下端部まで確実に押え付けることができ、そして、苗載台本体50の下端部に補助苗マット押え手段53を配設しているにもかかわらず、同補助苗マット押え体手段53に苗押え体59の下端部を干渉させることなく、苗押え体59の下部側を上方へ回動させることができる。
【００５９】
また、可動側ステー形成体64をコイルバネ66の上方回動付勢力に抗して下方へ回動させることにより、同可動側ステー形成体64の係合用凹部67に係合させた上側苗押え体支持部材57を係合解除すると共に、他の所望の係合用凹部67に上側苗押え体支持部材57を係合させる一方、下側苗押え体支持部58を支持する下側ステー56を適宜伸縮調節することにより、苗押え片86と苗載台本体50の表面との間隔調節を行なうことができて、苗マットの肉厚に適応させた苗押え片86の配設位置調節が簡単に行なえる。
【００６０】
補助苗マット押え手段53は、図７及び図８に示すように、前記苗マット押え手段52を支持する左右一対の縦リブ51,51 の下部に、それぞれ支持フレーム90,90 を後方へ向けて突設し、両支持フレーム90,90 の上端部間に左右方向に伸延する横フレーム91を横架して、同横フレーム91に複数の補助苗押え体92を左右方向に間隔を開けて取付けている。
【００６１】
ここで、補助苗押え体92は、苗押え体59と重なり合わないように、背面視にて左右方向に位置ずれさせて配置しており、中途部92a を苗押え体59の下部側支持片87よりも上方に配置すると共に、先端部92b を苗押え体59の苗押え片86の下端部と略同一高さに配置している。
【００６２】
このようにして、補助苗押え体92により苗マットの下端部を押えて、植付爪33により所定の苗ブロックの切削、取出し、さらには植付けが確実に行なえるようにしている。
【００６３】
図１１〜図１２は、他の実施例としての係合保持体69を示しており、同係合保持体69は、前記係合保持体69と基本的構造を同じくしているが、嵌合片70を円筒状に形成して、上側苗押え体支持部材57の端部より嵌合し、その後に、同上側苗押え体支持部材57の端部に抜け止め用突片57a を形成して、嵌合片70が抜けないようにしている。
【００６４】
【発明の効果】
本発明によれば、次のような効果が得られる。
【００６５】
請求項１記載の本発明では、上側ステーは、縦リブの上部に突設した固定側ステー形成体と、同固定側ステー形成体の先端部に基端部を枢支して、上下回動自在とした可動側ステー形成体とを具備し、同可動側ステーに上側苗押え体支持部材を、その軸線廻りに回動自在かつ着脱自在に取付ける一方、下側ステーは、縦リブの下部に突設して、同下側ステーの上端部に下側苗押え体支持部材を、その軸線廻りに回動自在かつ着脱自在に取付けているために、上側苗押え体支持部材を上側ステーより取外すことにより、下側苗押え体支持部材を中心にして、苗押え体の上部側を後方へ回動させて苗載台より離隔させることができる。
【００６６】
従って、苗載台上に残った大量の苗マットを、上方より容易に取出して回収することができる。
【００６７】
また、下側苗押え体支持部材を下側ステーより取外すことにより、上側苗押え体支持部材を中心にして、苗押え体の下部側を上方へ回動させて苗載台より離間させることができる。
【００６８】
この際、上側ステーは、固定側ステー形成体の先端部に基端部を枢支した可動側ステー形成体を、上方へ回動させることにより、苗押え体を苗載台の上面に沿わせて上方へ移動させることができ、その後に、苗押え体の下部側を、可動側ステー形成体に取付けた上側苗押え体支持部材を中心に上方へ回動させることができる。
【００６９】
従って、苗載台上に残った少量の苗マットを、下方より容易に取出して回収することができる。
【００７０】
しかも、苗押え体は、上方へ移動させながら、下部側を上方へ回動させることができるために、苗押え体の下端部を苗載台の下端部まで配置して、苗マットを下端部まで確実に押え付け可能とした場合に、苗載台の下端部に補助苗押え体等を配設している場合にも、同補助苗押え体等に苗押え体の下端部を干渉させることなく、苗押え体の下部側を上方へ回動させることができる。
【００７１】
本発明では、可動側ステー形成体は、固定側ステー形成体の先端部に基端部を弾性手段により上方へ回動付勢させて枢支し、同可動側ステー形成体の上側縁部に、複数の係合用凹部を長手方向に間隔を開けて形成し、同係合用凹部に上側の苗押え体支持部材を係合させる一方、縦リブの下部に突設した下側ステーは、苗載台の表面と略直交する方向に伸縮調節自在としているために、可動側ステー形成体を弾性手段の付勢力に抗して下方へ回動させることにより、同可動側ステー形成体の係合用凹部に係合させた上側苗押え体支持部材を係合解除すると共に、他の所望の係合用凹部に上側苗載せ体支持部材を係合させる一方、下側苗押え体支持部を支持する下側ステーを適宜伸縮調節することにより、苗押え体と苗載台の表面との間隔調節を行なうことができて、苗マットの肉厚に適応させた苗押え体の位置調節が簡単に行なえる。
【００７２】
本発明では、可動側ステー形成体の係合用凹部に係合した上側苗押え支持部材と、可動側ステー形成体との間に、係合保持体を着脱自在に介設しているために、係合保持体により上側苗押え体支持部材を係合用凹部に確実に係合・保持させることができる。
【００７３】
本発明では、係合保持体は、上側苗押え体支持部材に回動自在かつ摺動自在に嵌合した嵌合片と、同嵌合片に突設して可動側ステー形成体に係止可能とした係止片とを具備しているために、係止片を可動側ステー形成体に係止・解除操作することにより、同可動側ステー形成体から上側苗押え体支持部材を楽に着脱することができる。
【００７４】
請求項２記載の本発明では、下側苗押え体支持部材は、下側ステーの先端部にクリップを介して取付けているために、下側苗押え体支持部材を下側ステーより楽に取外すことができて、苗押え体の上下回動操作を迅速に行なうことができる。
【図面の簡単な説明】
【図１】本発明に係る苗押え構造を具備する田植機の側面図。
【図２】苗載台の背面図。
【図３】上側ステーの側面図。
【図４】同上側ステーの平面図。
【図５】係合保持体の側面図。
【図６】同係合保持体の平面図。
【図７】下側ステーの側面図。
【図８】同下側ステーの背面図。
【図９】苗押え体の上側開放状態説明図。
【図１０】同苗押え体の下側開放状態説明図。
【図１１】他実施例としての係合保持体の側面図。
【図１２】同係合保持体の平面図。
【符号の説明】
Ａ田植機
１走行部
２植付部
３昇降機構
52 苗マット押え手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling presser structure for a rice transplanter.
[0002]
[Prior art]
Conventionally, as one form of the seedling presser structure of the rice transplanter, a pair of upper and lower seedling support members extending in the left-right direction are respectively provided on the upper and lower parts of the pair of left and right vertical ribs formed on the seedling mount. A plurality of seedling pressers that extend horizontally along the surface of the seedling stand are installed with a space in the left-right direction between the upper and lower seedling supporter support members. However, there are some which hold the seedling mat placed on the seedling stand by these seedling pressers so that the seedling mat does not float.
[0003]
The upper seedling presser support member is detachably attached to the pair of left and right upper stays, and the lower seedling presser support member is pivotally supported on the pair of left and right lower stays.
[0004]
In this way, the upper seedling presser support member is removed from the pair of left and right upper stays, and the seedling presser body is moved backward with the lower seedling presser support member interposed therebetween, that is, the seedling The seedling mat remaining on the seedling stage can be collected by rotating in a direction away from the stage.
[0005]
[Problems to be solved by the invention]
However, in the above-described seedling presser structure, when the seedling mat remaining on the seedling mount is collected, the lower side of the seedling presser body rotated rearward is close to the seedling mat. The mat cannot be easily taken out, and the collection work is complicated.
[0006]
[Means for Solving the Problems]
Therefore, in the present invention, a pair of upper and lower seedling presser body support members extending in the left-right direction are respectively disposed on the upper and lower portions of the pair of left and right vertical ribs formed on the seedling platform via the pair of left and right upper and lower stays. A plurality of seedling pressers extending in the vertical direction along the surface of the seedling table are installed between the upper and lower seedling presser support members at intervals in the left-right direction. In the rice planter seedling presser structure that holds the seedling mat placed on the seedling stand so that the seedling mat does not float up, the upper stay is a fixed side stay forming body projecting from the top of the vertical rib. A movable side stay forming body pivotally supported at the distal end portion of the fixed side stay forming body and freely movable up and down, and an upper seedling presser support member is provided on the movable side stay, The lower stay is attached to the vertical rib while it is pivotable and detachable around the axis. Parts and projecting, lower seedling holding member supporting member in the upper portion of the lower stay, the mounting freely and detachably rotate its axis about the movable side stays forming body, the fixing side stay formed body A base end portion is pivotally biased upward by elastic means at the distal end portion and pivotally supported, and a plurality of recesses for engagement are formed at intervals in the longitudinal direction on the upper edge portion of the movable side stay forming body, While the upper seedling presser support member is engaged with the engaging recess, the lower stay protruding from the lower part of the vertical rib is adjustable to extend and contract in a direction substantially perpendicular to the surface of the seedling stand, thereby forming a movable side stay. An engagement holding body is detachably interposed between the upper seed presser support member engaged with the engagement recess of the body and the movable side stay forming body, and the engagement holding body is an upper seed presser support member. Can be pivotally and slidably fitted with a fitting piece, and can be locked to the movable stay forming body by protruding from the fitting piece. A seedling holding structure of rice transplanter, characterized by comprising the the locking piece.
[0007]
The present invention is also characterized by the following configuration.
[0011]
The lower seedling presser support member is attached to the tip of the lower stay via a clip.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0013]
That is, the seedling presser structure of the rice transplanter according to the present invention has, as a basic structure, a pair of upper and lower seedling presser body support members extending in the left-right direction at the upper and lower portions of the pair of left and right vertical ribs formed on the seedling mount. A plurality of seedling pressers extending in the vertical direction along the surface of the seedling platform between the upper and lower seedling presser support supporting members The seedling mat placed on the seedling stand is pressed by these seedling pressers so that the seedling mat does not float.
[0014]
And as a characteristic structure, the upper stay has a fixed-side stay forming body projecting from the upper part of the vertical rib, and a base end portion pivotally supported at the distal end portion of the fixed-side stay forming body, so that the upper stay is freely rotatable up and down. The upper side presser body support member is attached to the movable side stay so as to be rotatable and detachable about its axis, while the lower side stays projecting at the lower part of the vertical rib. A lower seed presser support member is attached to the upper end of the lower stay so as to be rotatable and detachable about its axis.
[0015]
In this way, by removing the upper seedling presser support member from the upper stay, the upper part of the seedling presser body is rotated backward with the lower seedling presser support member as the center to be separated from the seedling mount. be able to.
[0016]
Therefore, a large amount of seedling mats remaining on the seedling stage can be easily taken out and recovered from above.
[0017]
Further, by removing the lower seed presser body support member from the lower stay, the lower side of the seed presser body can be rotated upward with the upper seedling presser body support member as the center to be separated from the seedling mount. it can.
[0018]
At this time, the upper stay rotates the movable side stay forming body pivotally supported by the distal end portion of the fixed side stay forming body upward so that the seedling presser body follows the upper surface of the seedling mounting base. Then, the lower side of the seedling presser body can be rotated upward about the upper seedling presser support member attached to the movable side stay forming body.
[0019]
Therefore, a small amount of seedling mat remaining on the seedling mount can be easily taken out from below and collected.
[0020]
Moreover, since the seedling presser body can be rotated upward while moving upward, the lower end portion of the seedling presser body is arranged up to the lower end portion of the seedling mounting base, and the seedling mat is placed at the lower end portion. Even if an auxiliary seedling presser body is provided at the lower end of the seedling stand, the lower end of the seedling presser body should interfere with the auxiliary seedling presser body. The bottom side of the seedling presser can be rotated upward.
[0021]
Further, the movable side stay forming body is pivotally supported by pivotally urging the base end portion upward by elastic means at the distal end portion of the fixed side stay forming body. Are formed at intervals in the longitudinal direction, and the upper seedling support member is engaged with the engaging recess, while the lower stay protruding from the lower portion of the vertical rib is the surface of the seedling platform. It is possible to adjust the expansion and contraction in the direction substantially perpendicular to
[0022]
Thus, by rotating the movable side stay forming body downward against the urging force of the elastic means, the upper seedling support body supporting member engaged with the engaging recess of the movable side stay forming body is provided. The seedling presser body is released by disengaging and engaging the upper seedling presser body support member with another desired engagement recess, while appropriately adjusting the expansion and contraction of the lower stay supporting the lower seedling presser body support part. And the surface of the seedling table can be adjusted, so that the position of the seedling presser body can be easily adjusted in accordance with the thickness of the seedling mat.
[0023]
Moreover, the engagement holding body is detachably interposed between the upper seedling presser support member engaged with the engaging recess of the movable side stay forming body and the movable side stay forming body.
[0024]
In this way, the upper seedling presser support member can be reliably engaged and held in the engaging recess by the engagement holder.
[0025]
And the engagement holding body can be engaged with the upper side presser body support member so as to be pivotable and slidable, and can be projected to the engagement piece and locked to the movable side stay forming body. And a locking piece.
[0026]
In this way, by engaging and releasing the locking piece with the movable side stay forming body, the upper seedling presser support member can be easily detached from the movable side stay forming body.
[0027]
Further, the lower seedling presser support member is attached to the tip of the lower stay via a clip.
[0028]
Thus, the lower seedling presser support member can be easily removed from the lower stay, and the seedling presser can be quickly turned up and down.
[0029]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0030]
A shown in FIG. 1 and FIG. 2 is a rice transplanter according to the present invention, and the rice transplanter A connects a planting part 2 via a lifting mechanism 3 to the rear of the traveling part 1.
[0031]
The traveling unit 1 is provided with a prime mover unit 11 at the front part of the body frame 10 extending in the front-rear direction and a transmission part 12 linked to the prime mover part 11 at the rear part, and between the prime mover part 11 and the mission part 12 Is provided with a front axle case 14 at the part of the fuselage frame 10 located below the driving unit 13 and the front wheels 15 and 15 are attached to the left and right sides of the front axle case 14, respectively. On the other hand, a rear axle case 16 is provided at the rear end of the body frame 10, and rear wheels 17 and 17 are attached to the left and right sides of the rear axle case 16, respectively.
[0032]
Then, the operating unit 13 integrally stands the handle column 20 at the rear of the prime mover unit 11, and attaches the handle 21 to the upper end of the handle column 20 via the handle support shaft 22. A seat 23 is disposed on the seat 23, and a step portion 24 is stretched between the handle 21 and the seat 23.
[0033]
Further, the step portion 24 raises the rear end edge upward, and extends rearward to form the seat support portion 25, and further extends the rear end edge portion of the seat support portion 25 rearward. A rear step portion 26 is formed, and rear wheel fender portions 27 and 27 are integrally formed in a protruding shape on the left and right sides of the rear step portion 26, respectively.
[0034]
The planting part 2 is provided with a planting transmission case 31 connected to the rear part of the planting transmission case 30, and also on the left and right sides of the planting transmission case 31, respectively. Planting transmission cases 31, 31 linked to each other through 32 are arranged, and a seedling stage 37 is placed on these planting transmission cases 31 in a slanted shape, front and rear, and the seedling stage 37 Immediately below the lower edge of the planting, a planting claw 33 is arranged in conjunction with the rear end of each planting transmission case 31, and a center float 34 and a side float are located below each planting transmission case 31. 35 and 35 are arranged so that multiple seedlings can be planted.
[0035]
As shown in FIG. 2, the seedling stage 37 has, on the upper surface of the rectangular plate-shaped seedling stage main body 50, vertical ribs 51 for regulating and guiding the seedling mat for each line in the left-right width direction. The seedling mat presser means 52 is installed between predetermined vertical ribs 51, 51, and the seedling mat presser means 52 is used to hold the seedling mats toward the seedling mount body 50 side. In addition, each seedling mat is prevented from floating, and an auxiliary seedling mat pressing means 53 is installed between the lower portions of the predetermined vertical ribs 51, 51, and the lower end portion of each seedling mat is attached to the seedling stand main body. It is pressed to the 50 side so that the seedling block can be cut and removed with the planting claws 33 reliably. 54 is a seed mat receiver, and 95 is an extended seed bed.
[0036]
The elevating mechanism 3 includes a top link 40 extending in the front-rear direction, a pair of left and right lower links 41, 41, and an elevating cylinder 42, and connects the planting part 2 so as to be movable up and down.
[0037]
In the configuration as described above, the gist of the present invention resides in the seedling holding structure, that is, the structure of the seedling mat holding means 52 for holding the seedling mat, and will be described below with reference to FIGS.
[0038]
As shown in FIGS. 2, 8 and 9, the seedling mat presser means 52 is provided between the vertical rib 51 located at the left end and the fourth vertical rib 51 from the left side in order to press the seedling mat for three strips. The fourth vertical rib 51 is interposed between the vertical rib 51 located at the right end.
[0039]
A pair of left and right upper stays 55 and 55 and a pair of left and right lower stays 56 and 56 project from the upper and lower portions of the pair of left and right vertical ribs 51 and 51 that support the seedling mat presser 52, respectively. Between the pair of upper stays 55, 55, a bar-shaped upper seed presser support member 57 that extends in the left-right direction is horizontally mounted, while between the pair of left and right lower stays 56, 56, A plurality of seedling pressers 59 extending in the vertical direction along the surface of the seedling mount body 50 are provided between the upper and lower seedling supporter support members 57, 58. The seedling mat 59 is installed from above so that the seedling mat placed on the seedling stand main body 50 is pressed from above by the seedling presser 59 so that the seedling mat is not lifted from the seedling mounting base body 50. I am doing so.
[0040]
As shown in FIGS. 3 and 4, the upper stay 55 has a pair of front and rear support plates 60, 61 fixed to the upper portion of the vertical rib 51 by fixing bolts 62, 62, and is directed rearward from the rear support plate 61. The fixed-side stay forming body 63 is projected, and the base end of the movable-side stay forming body 64 is pivotally supported by the pivot 65 with the axis line in the left-right direction at the distal end of the fixed-side stay forming body 63. The movable-side stay forming body 64 can be turned up and down, and a coil spring 66 as an elastic means is wound around the pivot 65, and one end 66a of the coil spring 66 is engaged with a distal end portion of the stationary-side stay forming body 63. The other end 66b is locked to the base end of the movable side stay forming body 64 via the locking piece 64a, and the movable side stay forming body 64 is moved upward by the coil spring 66. Rotating bias is applied.
[0041]
The movable stay forming body 64 is formed with four engaging recesses 67, 67, 67, 67 at the upper edge thereof at intervals in the longitudinal direction, and the upper seedling support body support member 57 is formed in each engaging recess 67. An engagement receiving piece 68 formed by being folded back in a substantially U-shaped cross section is provided at the lower edge, and the upper seedling support body support member 57 is movable to the engagement reception piece 68. An engagement holding body 69 for engaging and holding the engagement recess 67 of the side stay forming body 64 is locked.
[0042]
As shown in FIGS. 5 and 6, the engagement holding body 69 has a fitting piece 70 formed in a substantially C-shaped cross section of the upper surface opening, and protrudes rearward and outward from the left end portion of the fitting piece 70. A locking piece 71 having elastic restoring force, an operation piece 72 protruding downward from the locking piece 71, a finger hook piece 73 protruding rearward from the right end of the fitting piece 70, An elastic fitting piece 74 having a substantially C-shaped cross section is provided by a leaf spring so as to be detachably fitted to the outer peripheral surface of the fitting piece 70 from above. 57a is a retaining protrusion, and 71a is a reinforcing rib.
[0043]
In this way, the engagement holder 69 fits the fitting piece 70 to the upper seedling presser support member 57 from below and fits the elastic fitting piece 74 to the outer peripheral surface of the fitting piece 70 from above. Accordingly, the fitting piece 70 can be attached to the upper seedling presser support member 57 so as to be rotatable and slidable.
[0044]
Then, the end portion of the upper seedling presser support member 57 is engaged with the engaging recess 67 of the movable side stay forming body 64, and the locking piece 71 is attached to the locking receiving piece 68 of the movable side stay forming body 64 from below. By locking, the upper seedling presser support member 57 can be engaged and held in the engaging recess 67.
[0045]
Further, when releasing the engagement of the upper seedling presser support member 57, a middle finger or the like is hung on the finger hook piece 73, the operation piece 72 is operated with a thumb or the like, and the lock piece 71 is locked. When the latch is released from 68 and the engagement holding body 69 is slid inward in the same state, the upper seedling support body support member 57 can be removed upward from the engagement recess 67.
[0046]
Further, when removing the engagement holding body 69 from the upper presser body support member 57, if the elastic fitting piece 74 is removed above the fitting piece 70, the fitting piece 70 is removed from the upper seed presser body support member 57. Can be removed downward.
[0047]
As shown in FIGS. 7 and 8, the lower stay 56 has a support plate 75 fixed to the lower portion of the vertical rib 51, and a cylindrical fixed side stay forming body 76 protruding from the support plate 75. The base end 77a of the rod-like movable side stay forming body 77 is inserted into the stationary side stay forming body 76 so as to be able to move forward and backward, and the base end 77a is formed as a fixed side stay. The movable side stay forming body 77 can be moved forward and backward (adjustable and retractable) so that it can be fixed and released by the adjusting bolt 78 attached to the body 76, and the movable side stay forming body 77 bends the middle part 77b downward. Further, the tip end portion 77c is bent rearward, and a clamped clip 79 formed by a leaf spring is attached to the tip end portion 77c.
[0048]
Then, the end of the lower seed presser support member 58 is attached to the clip 79 so as to be rotatable and detachable about its axis.
[0049]
Further, a stopper piece 80 extending in the left-right direction is attached to the middle part 77b of the movable side stay forming body 77, while a contact piece 81 is projected downward from the end of the lower seedling presser support member 58. The contact piece 81 abuts against the stopper piece 80 when the lower seed presser support member 58 rotates clockwise in a side view shown in FIGS. The rotation of the side seedling presser support member 58 is restricted.
[0050]
As shown in FIGS. 9 and 10, the seedling presser 59 includes an upper support piece 85 having a distal end portion connected to the upper seedling presser support member 57, and an upper portion at the base end of the upper support piece 85. And a lower support piece 87 having a base end portion connected to a lower end portion of the seedling presser piece 86 and a lower end support piece 87 having a distal end portion connected to the lower seedling support body support member 58. The seedling presser piece 86 is directly in contact with the seedling mat to prevent the seedling mat from being lifted.
[0051]
The lower support piece 87 is disposed below the lower seed presser support member 58, and the seedling mat is disposed between the lower support piece 87 and the lower seed presser support member 58. A receptacle 54 is interposed.
[0052]
In this way, by removing the upper seedling presser support member 57 from the upper stays 55, 55, the upper side of the seedling presser body 59 is rotated backward about the lower seedling presser support member 58. It can be separated from the seedling stand main body 50.
[0053]
At this time, the rotation of the lower seedling presser support member 58 is restricted by the contact piece 81 contacting the stopper piece 80.
[0054]
Accordingly, the seedling mat remaining on the seedling mounting base body 50 can be taken out and recovered from above.
[0055]
Further, by removing the lower seedling presser support member 58 from the lower stays 56, 56, the lower side of the seedling presser body 59 is rotated upward around the upper seedling presser support member 57, so that the seedling is loaded. It can be separated from the base body 50.
[0056]
At this time, the upper stay 55 is configured so that the movable side stay forming body 64 pivotally supported by the distal end portion of the fixed side stay forming body 63 is pivoted upward by the coil spring 66. The body 59 is moved upward along the upper surface of the seedling mounting body 50, and then the lower side of the seedling presser body 59, with the upper seedling support body support member 57 attached to the movable side stay forming body 64 as the center, It can be rotated upward.
[0057]
Therefore, the seedling mat remaining on the seedling mounting base body 50 can be taken out and recovered from below.
[0058]
Moreover, since the seedling presser body 59 can be rotated upward while moving upward, the lower end part of the seedling presser body 59 is arranged up to the lower end part of the seedling mounting base body 50, so that the seedling holder The mat can be securely pressed down to the lower end, and the auxiliary seedling mat presser means 53 is attached to the auxiliary seedling mat presser means 53 even though the auxiliary seedling mat presser means 53 is provided at the lower end of the seedling mount body 50. The lower side of the seedling presser body 59 can be rotated upward without causing the lower end portion of the seedling presser body 59 to interfere.
[0059]
Further, the upper side presser body engaged with the engaging recess 67 of the movable side stay forming body 64 by rotating the movable side stay forming body 64 downward against the upward rotation biasing force of the coil spring 66. The support member 57 is disengaged and the upper seedling presser body support member 57 is engaged with another desired engagement recess 67, while the lower stay 56 that supports the lower seedling presser body support part 58 is appropriately expanded and contracted. By adjusting, it is possible to adjust the spacing between the seedling presser piece 86 and the surface of the seedling mount main body 50, and the arrangement position of the seedling presser piece 86 adapted to the thickness of the seedling mat can be easily adjusted. The
[0060]
As shown in FIGS. 7 and 8, the auxiliary seedling mat presser means 53 has support frames 90, 90 facing rearward at the lower portions of the pair of left and right vertical ribs 51,51 that support the seedling mat presser means 52, respectively. A horizontal frame 91 that protrudes and extends horizontally between the upper ends of both support frames 90, 90 is mounted horizontally, and a plurality of auxiliary seedling pressers 92 are attached to the horizontal frame 91 at intervals in the horizontal direction. ing.
[0061]
Here, the auxiliary seedling presser body 92 is arranged so as to be displaced in the left-right direction in the rear view so as not to overlap the seedling presser body 59, and the midway portion 92a is supported on the lower side supporting piece of the seedling presser body 59. The tip 92b is arranged at substantially the same height as the lower end of the seedling presser piece 86 of the seedling presser 59.
[0062]
In this way, the lower end portion of the seedling mat is pressed by the auxiliary seedling presser 92, and a predetermined seedling block is cut and taken out by the planting claws 33, and further, planting can be reliably performed.
[0063]
11 to 12 show an engagement holding body 69 as another embodiment, and the engagement holding body 69 has the same basic structure as the engagement holding body 69, but is fitted. A piece 70 is formed in a cylindrical shape and is fitted from the end of the upper seedling presser support member 57, and thereafter, a retaining protrusion 57a is formed at the end of the upper seedling presser support member 57. The fitting piece 70 is prevented from coming off.
[0064]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0065]
In the present invention the 請 Motomeko 1, wherein the upper stay includes a fixing side stay formed body protruding from the top of the vertical ribs, and pivotally supported a proximal end to a distal end portion of the fixing side stays forming body, the upper and lower times A movable side stay forming body, and an upper seed presser support member is attached to the movable side stay so as to be rotatable and detachable about its axis, while the lower stay is a lower part of the vertical rib. Since the lower seed presser body support member is attached to the upper end of the lower stay so as to be rotatable and detachable about its axis, the upper seed presser body support member is attached to the upper stay from the upper stay. By detaching, the upper side of the seedling presser body can be rotated backward with the lower seedling presser body support member as the center to be separated from the seedling mount.
[0066]
Therefore, a large amount of seedling mats remaining on the seedling stage can be easily taken out and recovered from above.
[0067]
Further, by removing the lower seed presser body support member from the lower stay, the lower side of the seed presser body can be rotated upward with the upper seedling presser body support member as the center to be separated from the seedling mount. it can.
[0068]
At this time, the upper stay rotates the movable side stay forming body pivotally supported by the distal end portion of the fixed side stay forming body upward so that the seedling presser body follows the upper surface of the seedling mounting base. Then, the lower side of the seedling presser body can be rotated upward about the upper seedling presser support member attached to the movable side stay forming body.
[0069]
Therefore, a small amount of seedling mat remaining on the seedling mount can be easily taken out from below and collected.
[0070]
Moreover, since the seedling presser body can be rotated upward while moving upward, the lower end portion of the seedling presser body is arranged up to the lower end portion of the seedling mounting base, and the seedling mat is placed at the lower end portion. Even if an auxiliary seedling presser body is provided at the lower end of the seedling stand, the lower end of the seedling presser body should interfere with the auxiliary seedling presser body. The bottom side of the seedling presser can be rotated upward.
[0071]
In the present invention, the movable-side stay forming body is pivotally supported by rotating the base end of the fixed-side stay forming body upward by an elastic means, and is supported on the upper edge of the movable-side stay forming body. A plurality of recesses for engagement are formed at intervals in the longitudinal direction, and the upper seedling presser support member is engaged with the engagement recesses, while the lower stay protruding from the lower portion of the vertical rib Since the expansion and contraction can be adjusted in a direction substantially orthogonal to the surface of the table, the movable side stay forming body is rotated downward against the urging force of the elastic means, thereby engaging the concave portion for engaging the movable side stay forming body. The upper side that supports the lower seedling presser support part while disengaging the upper seedling supporter support member that is engaged with the upper seedling supporter and that engages the upper seedling supporter support member with another desired engagement recess Adjust the distance between the seedling presser and the surface of the seedling table by adjusting the stay appropriately. To be able Nau, position adjustment easily performed thick to adapts seedlings presser seedlings mat.
[0072]
In the present invention, since the engagement holding body is detachably interposed between the upper seedling presser supporting member engaged with the recess for engagement of the movable side stay forming body and the movable side stay forming body, The upper seedling presser support member can be reliably engaged and held in the recess for engagement by the engagement holder.
[0073]
In the present invention, the engagement holding body includes a fitting piece that is pivotably and slidably fitted to the upper seedling support body support member, and projects from the fitting piece to be locked to the movable side stay forming body. Since it is equipped with a locking piece that can be made, the upper seedling presser support member can be easily attached to and detached from the movable side stay forming body by engaging and releasing the locking piece to the movable side stay forming body. can do.
[0074]
In the present invention the 請 Motomeko 2, wherein the lower seedling holding member supporting member, in order to have attached via a clip to the distal end portion of the lower stay, remove the lower seedling holding member supporting member easier than the lower stay Therefore, the vertical rotation operation of the seedling presser body can be quickly performed.
[Brief description of the drawings]
FIG. 1 is a side view of a rice transplanter equipped with a seedling presser structure according to the present invention.
FIG. 2 is a rear view of a seedling stage.
FIG. 3 is a side view of the upper stay.
FIG. 4 is a plan view of the upper stay.
FIG. 5 is a side view of the engagement holder.
FIG. 6 is a plan view of the engagement holder.
FIG. 7 is a side view of the lower stay.
FIG. 8 is a rear view of the lower stay.
FIG. 9 is an explanatory diagram of the upper open state of the seedling presser.
FIG. 10 is an explanatory diagram of a lower open state of the seedling presser body.
FIG. 11 is a side view of an engagement holder as another embodiment.
FIG. 12 is a plan view of the engagement holder.
[Explanation of symbols]
A Rice transplanter 1 Traveling part 2 Planting part 3 Lifting mechanism
52 Seedling mat presser means

Claims

A pair of upper and lower seedling presser support members extending in the left-right direction are horizontally mounted on the upper and lower portions of the pair of left and right vertical ribs formed on the seedling mount through the left and right pair of upper and lower stays. A plurality of seedling pressers extending in the vertical direction along the surface of the seedling support table are installed between the lower seedling support member supporting members at intervals in the left-right direction, and these seedling pressers are mounted on the seedling support table. In the rice transplanter seedling presser structure that holds the seedling mat placed so that the seedling mat does not rise, the upper stay has a fixed-side stay formation projecting from the upper part of the vertical rib and the fixed-side stay formation It has a movable side stay forming body that pivots vertically at the base end of the body and can be rotated up and down, and an upper seedling support body support member can be rotated around its axis on the movable side stay. The lower stay protrudes from the bottom of the vertical rib and is The lower seedling holding member supporting member in the upper portion of the stay, the mounting freely and detachably rotate its axis about,
The movable side stay forming body pivotally supports the base end portion of the fixed side stay forming body by rotating and urging the base end upward by elastic means, and a plurality of engagements are formed on the upper edge of the movable side stay forming body. The joint recess is formed at intervals in the longitudinal direction, and the upper seed presser support member is engaged with the engagement recess, while the lower stay protruding from the lower portion of the vertical rib is substantially the same as the surface of the seedling platform. Adjustable to expand and contract in the orthogonal direction,
An engagement holding body is detachably interposed between the upper seedling presser supporting member engaged with the engaging recess of the movable side stay forming body and the movable side stay forming body ,
The engagement holding body includes a fitting piece that is rotatably and slidably fitted to the upper seedling support body support member, and a latch that protrudes from the fitting piece and can be locked to the movable side stay forming body. A rice transplanter seedling presser structure characterized by comprising a stop piece .

The seedling presser structure for a rice transplanter according to claim 1, wherein the lower seedling presser support member is attached to the tip of the lower stay via a clip.