JP4220299B2 - Tractor - Google Patents

Tractor Download PDF

Info

Publication number
JP4220299B2
JP4220299B2 JP2003132291A JP2003132291A JP4220299B2 JP 4220299 B2 JP4220299 B2 JP 4220299B2 JP 2003132291 A JP2003132291 A JP 2003132291A JP 2003132291 A JP2003132291 A JP 2003132291A JP 4220299 B2 JP4220299 B2 JP 4220299B2
Authority
JP
Japan
Prior art keywords
interposed
extending
body frame
mast
pieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003132291A
Other languages
Japanese (ja)
Other versions
JP2004330982A (en
Inventor
真介 谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Co Ltd filed Critical Yanmar Co Ltd
Priority to JP2003132291A priority Critical patent/JP4220299B2/en
Publication of JP2004330982A publication Critical patent/JP2004330982A/en
Application granted granted Critical
Publication of JP4220299B2 publication Critical patent/JP4220299B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Shovels (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、トラクタに関する。
【0002】
【従来の技術】
従来、トラクタの一形態として、前後方向に伸延する車体フレームの中途部にマスト支持体を外側方へ張り出し状に設け、同マスト支持体にフロントローダのマストを着脱自在に取り付け可能としたものがある(例えば、特許文献1参照)。
【0003】
そして、マスト支持体は、車体フレームの中途部から外側方へ突出させた支持片と、同支持片の上面先端部に固設した取付片とから形成しており、同取付片は、前方と上方が開口した平面視コ字状に形成して、同取付片にマストの下端部を嵌合させた状態にて取り付けるようにしている。
【0004】
【特許文献1】
特開平6−101245号公報
【0005】
【発明が解決しようとする課題】
ところが、上記したマスト支持体は、車体フレームの中途部に片持ち状態にて支持されているだけであるために、同マスト支持体の先端部に作用するフロントローダの静荷重や活荷重が、マスト支持体の基端部を連結している車体フレームの連結部に大きな負荷(モーメント)となって作用しており、フロントローダの安定支持が確保されていないという不具合がある。
【0006】
そこで、本発明では、前後方向に伸延する車体フレームの中途部にマスト支持体を外側方へ張り出し状に設け、同マスト支持体にフロントローダのマストを取り付けたトラクタにおいて、
マスト支持体と、車体フレームの後部に設けたリヤアクスルケースとの間に、前後方向に伸延する補強連結体を介設し、同補強連結体の後端部は、連結ブラケットを介してリヤアクスルケースに連結すると共に、連結ブラケットは、調整孔を具備して左右方向に伸延する前面部形成片と、調整孔を具備して前後方向に伸延する側面部形成片とから平面視略L字状に形成して、前面部形成片をリヤアクスルケースに前後方向に重合させた状態にて調整孔を介して調整自在に連結する一方、側面部形成片に補強連結体を左右方向に重合させた状態にて調整自在に連結したことを特徴とするトラクタを提供するものである。
【0007】
また、本発明は、以下の構成にも特徴を有する。
【0010】
(1)補強連結体の中途部と車体フレームの後部との間に、連結体を介設したこと。
【0011】
(2)前後方向に伸延する車体フレームの中途部にマスト支持体を外側方へ張り出し状に設け、同マスト支持体にフロントローダのマストを着脱自在に取り付け可能としたトラクタにおいて、前後方向に伸延する左右一対の前後伸延片により車体フレームの一部を形成し、両前後伸延片の後部間に連結部材を介設して、同連結部材とマスト支持体との間に補強連結体を介設し、連結部材は、前後伸延片の内側面に連設した左右一対の側壁形成片と、両側壁形成片の後端部間に介設した後壁形成片と、両側壁形成片の下端部間に介設した底面部形成片とを具備し、少なくとも左右一対の側壁形成片には作業機連結用の連結孔を形成したこと。
【0012】
(5)連結部材は、前後伸延片の内側面に連設した左右一対の側壁形成片と、両側壁形成片の後端部間に介設した後壁形成片と、両側壁形成片の下端部間に介設した底部形成片とを具備し、少なくとも左右一対の側壁形成片には作業機連結用の連結孔を形成したこと。
【0013】
【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。
【0014】
すなわち、本発明に係るトラクタは、前後方向に伸延する車体フレームの中途部にマスト支持体を外側方へ張り出し状に設け、同マスト支持体にフロントローダのマストを取り付けており、マスト支持体と、車体フレームの後部に設けたリヤアクスルケースとの間に、前後方向に伸延する補強連結体を介設している。
【0015】
そして、補強連結体の後端部は、リヤアクスルケースに設けた作業機取付部に連結している。
【0016】
すなわち、補強連結体の後端部は、連結ブラケットを介してリヤアクスルケースに連結すると共に、連結ブラケットは、調整孔を具備して左右方向に伸延する前面部形成片と、調整孔を具備して前後方向に伸延する側面部形成片とから平面視略L字状に形成して、前面部形成片をリヤアクスルケースに前後方向に重合させた状態にて調整孔を介して調整自在に連結する一方、側面部形成片に補強連結体を左右方向に重合させた状態にて調整自在に連結している。
【0017】
また、上記構成に加えて、補強連結体の中途部と車体フレームの後部との間に、連結体を介設することもできる。
【0018】
そして、前後方向に伸延する左右一対の前後伸延片により車体フレームの一部を形成し、両前後伸延片の後部間に連結部材を介設して、同連結部材とマスト支持体との間に補強連結体を介設することもできる。
【0019】
また、連結部材は、前後伸延片の内側面に連設した左右一対の側壁形成片と、両側壁形成片の後端部間に介設した後壁形成片と、両側壁形成片の下端部間に介設した底部形成片とを具備し、少なくとも左右一対の側壁形成片には作業機連結用の連結孔を形成している。
【0020】
【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。
【0021】
図1に示すAは、本発明に係るトラクタであり、同トラクタAにはフロントローダBを着脱自在に取り付けている。
【0022】
すなわち、トラクタAは、図1に示すように、車体フレーム1の前部に原動機部2を設け、同原動機部2の後方位置に運転部3を設け、同運転部3に設けた運転席30の下方位置にミッション部4を設けており、車体フレーム1の前部下方にフロントアクスルケース5を介して左右一対の前車輪6,6を取り付ける一方、上記ミッション部4の左右側方にリヤアクスルケース7,7を介して後車輪8,8を取り付けている。
【0023】
車体フレーム1は、図2及び図3にも示すように、前後方向に伸延する左右一対の前後伸延片10,10の前端部間に、左右方向に伸延する前部左右伸延片11を左右方向に張り出し状に横架すると共に、両前後伸延片10,10の中途部間に中途部左右伸延片12を横架してフレーム本体13を枠組形成し、両前後伸延片10,10の前部間にフロントアクスルケース支持体14を架設する一方、両前後伸延片10,10の後端部間に連結部材15を介設している。
【0024】
そして、左右一対の前後伸延片10,10の後端には前記ミッション部4を連設して、同ミッション部4を車体フレーム1の一部として機能させている。
【0025】
また、左右一対の前後伸延片10,10の中途部に、それぞれ外側方へ向けて伸延するマスト支持体16,16を突設し、各マスト支持体16,16の外側端部に板状のマスト連結片17,17を設けて、各マスト連結片17,17に上方へ向けて立ち上がり状に形成したマスト18,18の下端部を着脱自在に連結している。
【0026】
前部左右伸延片11の左右側部間には、ガードフレーム連結片19,19を介して正面視門型に形成したガードフレーム20を立設しており、各ガードフレーム連結片19,19と前記マスト18,18の中途部より前方へ突設した連結用突片21,21との間には、前後方向に伸延する補強フレーム22,22を介設している。
【0027】
原動機部2には、エンジンEや燃料タンク26等を設け、これらをボンネット27により被覆している。
【0028】
運転部3には、ハンドルポスト28を介してステアリングホイール29を設け、同ステアリングホイール29の後方位置でかつミッション部4の直上方位置に運転席30を配置している。31は変速レバーである。
【0029】
ミッション部4は、伝動ケース32を介して前記エンジンEに連動連結している。33は、後方に連結した作業機を昇降させるリフトアームである。
【0030】
また、フロントローダBは、図1に示すように、前記した左右一対のマスト18,18と、各マスト18,18に基端部を取り付けた左右一対の支持アーム34,34と、両支持アーム34,34の先端部間に架設したバケット35と、上記マスト18,18と支持アーム34,34との間に介設したリフトシリンダ36,36と、上記マスト18,18とバケット35との間に介設したバケットシリンダ37,37及びバケットリンク機構38,38とを装備している。
【0031】
上記のような構成において、本発明の要旨は、図2及び図3に示すように、マスト支持体16,16と、車体フレーム1の後部にミッション部4を介して設けたリヤアクスルケース7,7との間に、前後方向に伸延する補強連結体40,40を介設して、マスト支持体16,16を補強したマスト支持体補強構造にあり、以下に、第1実施例としてのマスト支持体補強構造について説明する。
【0032】
〔第1実施例〕
第1実施例としてのマスト支持体補強構造では、補強連結体40を、前記マスト支持体16の後周面中途部に固設した連結板片41と、同連結板片41に前端部42aを連設して後方へ向けて伸延する角パイプ状の連結体本片42と、同連結体本片42の後部42bの外側面に前部43aの内側面を内外側に重合状態に連設して後方へ向けて伸延する板状連結片43とから形成しており、同板状連結片43は、リヤアクスルケース7に設けた作業機取付部44に連結ブラケット45を介して後部43bを連結している。43cは、板状連結片43の上端縁中途部に形成したリヤアクスルケース干渉回避用凹部である。
【0033】
そして、作業機取付部44は、リヤアクスルケース7の後周面に作業機取付座46を一体成形し、同作業機取付座46に上記連結ブラケット45と作業機連結体47とを重合状態にして連結ボルト48により一体的に連結している。
【0034】
また、板状連結片43の後端部は、連結ブラケット45を介してリヤアクスルケース7に一体成形した作業機取付座46に連結しており、同連結ブラケット45は、図4にも示すように、左右方向に伸延する四角形板状の前面部形成片45aと、四角形板状の側面部形成片45bとから平面視略L字状に形成しており、前面部形成片45aには、左右方向に伸延する複数(本実施例では四個)の調整孔70を形成すると共に、側面部形成片45bには、前後方向に伸延する複数(本実施例では六個)の調整孔71を形成している。
【0035】
そして、前面部形成片45aを作業機取付座46に前後方向に重合させた状態にて、前後方向に軸線を向けた連結ボルト48により左右方向に伸延する調整孔70を介して左右位置調整自在に連結する一方、側面部形成片45bに板状連結片4 3の後端部を左右方向(内外側)に重合させた状態にて、左右方向に軸線を向けた連結ボルト49により前後方向に伸延する調整孔71を介して前後位置調整自在に連結している。
【0036】
このようにして、マスト支持体16,16と、車体フレーム1の後部に設けたリヤアクスルケース7,7との間に、前後方向に伸延する補強連結体40,40を介設しているため、マスト支持体16,16に作用したフロントローダBからの荷重(モーメント)を補強連結体40,40を介してリヤアクスルケース7,7に分散させることができて、車体フレーム1の一部への荷重の集中を防止することができる。その結果、マスト支持体16,16によるフロントローダBの安定支持を確保することができる。
【0037】
この際、製造誤差等によって補強連結体40の先端部の取付位置にバラツキが生じた場合でも、リヤアクスルケース7の作業機取付座46に対する前面部形成片45aの連結は、左右方向に伸延する調整孔70を介して左右位置調節した後に連結ボルト48により行うことができると共に、側面部形成片45bに対する板状連結片43の連結は、前後方向に伸延する調整孔71を介して前後位置調節した後に連結ボルト49により行うことができるため、リヤアクスルケース7に補強連結体40の後端部を確実に連結することができる。
【0038】
なお、本実施例では、調整孔70,71を左右方向ないしは前後方向に伸延させた長孔に形成して、左右方向ないしは前後方向の位置調整が行えるようにしているが、かかる調整ができれば、長孔に限らず、連結ボルト48,49の外径よりもやや大径の孔に形成することもできる。
【0039】
前記した連結部材15は、図5に示すように、左右一対の前後伸延片10,10の内側面にそれぞれ連設した左右一対の板状の側壁形成片50,50と、両側壁形成片50,50の後端部間に介設した板状の後壁形成片51と、両側壁形成片50,50の下端部間に介設した板状の底面部形成片52とを具備し、各形成片50,50,52にはそれぞれ作業機連結用の連結孔53,53,54を形成している。55はミッション部連結板体、56は、図示しないブレーキペダル軸を挿通するために前後伸延片10に形成した連結軸等挿通孔、57は連結軸等干渉回避用凹部、58は補強リブ、58は、ミッション部連結板体55に形成した連結孔である。
【0040】
このようにして、連結部材15は、左右一対の板状の側壁形成片50,50と板状の後壁形成片51と板状の底部形成片52とから立体的に枠組構成しているため、かかる連結部材15を介設した左右一対の前後伸延片10,10の強度を向上させることができる。
【0041】
しかも、各形成片50,50,51には作業機連結用の連結孔53,53,54を形成しているため、連結部材15に連結孔53,53,54を介して各種作業機を簡単かつ確実に連結することができて、作業用途を容易に増大させることができる。
【0042】
〔第2実施例〕
第2実施例としてのマスト支持体補強構造は、図6及び図7に示すように、基本的構造を前記した第1実施例としてのマスト支持体補強構造と同じくしているが、補強連結体40,40の中途部と前後伸延片10,10の後部との間に、連結体60,60を介設している点において異なる。
【0043】
すなわち、連結体60は、前面部形成片60aと側面部形成片60bと水平連結部形成片60cとから形成して、前記連結部材15の後壁形成片51に前面部形成片60aを連結ボルト61により連結すると共に、補強連結体40の連結体本片42の後部内側面に連結座62を介して側面部形成片60bを連結ボルト63により連結している。
【0044】
このようにして、補強連結体40の中途部と前後伸延片10の後部との間に、連結体60を介設しているため、補強連結体40と前後伸延片10の強度を向上させることができる。
【0045】
ここで、連結体60も、前記した連結ブラケット45と同様に、前面部形成片60aに左右方向に伸延する複数の調整孔(図示せず)を形成する一方、側面部形成片60bに前後方向に伸延する複数の調整孔(図示せず)を形成して、左右方向及び前後方向の連結位置の調整が適宜行えるようにしている。
【0046】
従って、補強連結体40の取付位置にかかわりなく連結体60を確実に連結することができる。
【0047】
〔第3実施例〕
第3実施例としてのマスト支持体補強構造は、図8及び図9に示すように、基本的構造を前記した第1実施例としてのマスト支持体補強構造と同じくしているが、同連結部材15とマスト支持体16,16との間に補強連結体40,40を介設した点において異なる。
【0048】
すなわち、第3実施例としてのマスト支持体補強構造では、補強連結体40を、前記マスト支持体16の後周面中途部に固設した前部連結板片65と、同前部連結板片65に前端部66aを連設して後方へ向けて伸延する断面L字状の連結体本片66と、同連結体本片66の後端部66bを連設して連結部材15の側壁形成片50に連結ボルト67により取り付けた後部連結片68とから形成している。
【0049】
このようにして、左右一対の前後伸延片10,10の後部間に介設した連結部材15とマスト支持体16,16との間に、補強連結体40,40を筋交い状態に介設しているため、車体フレーム1の捩り強度を向上させることができると共に、マスト支持体16,16に作用したフロントローダBからの荷重(モーメント)を補強連結体40,40を介して車体フレーム1の後部に分散させることができて、車体フレーム1の一部への応力集中を防止することができる。その結果、マスト支持体16,16によるフロントローダBの安定支持を確保することができる。
【0050】
なお、連結体本片66の形状は、剛性を確保できれば、断面L字状に限らず角パイプ状等に形成することができる。
【0051】
【発明の効果】
(1)請求項1記載の本発明では、前後方向に伸延する車体フレームの中途部にマスト支持体を外側方へ張り出し状に設け、同マスト支持体にフロントローダのマストを取り付けたトラクタにおいて、マスト支持体と、車体フレームの後部に設けたリヤアクスルケースとの間に、前後方向に伸延する補強連結体を介設している。
【0052】
このようにして、マスト支持体と、車体フレームの後部に設けたリヤアクスルケースとの間に、前後方向に伸延する補強連結体を介設しているため、マスト支持体に作用したフロントローダからの荷重(モーメント)を補強連結体を介してリヤアクスルケースに分散させることができて、車体フレームの一部への応力集中を防止することができる。その結果、マスト支持体によるフロントローダの安定支持を確保することができる。
【0055】
しかも、補強連結体の後端部は、連結ブラケットを介してリヤアクスルケースに連結すると共に、連結ブラケットは、調整孔を具備して左右方向に伸延する前面部形成片と、調整孔を具備して前後方向に伸延する側面部形成片とから平面視略L字状に形成して、前面部形成片をリヤアクスルケースに前後方向に重合させた状態にて調整孔を介して調整自在に連結する一方、側面部形成片に補強連結体を左右方向に重合させた状態にて調整自在に連結している。
【0056】
このようにして、連結ブラケットを調整孔を具備する前面部形成片と側面部形成片とから平面視略L字状に形成して、前面部形成片をリヤアクスルケースに前後方向に重合させた状態にて調整孔を介して調整自在に連結する一方、側面部形成片に補強連結体を左右方向に重合させた状態にて調整孔を介して調整自在に連結しているため、製造誤差等によって補強連結体の先端部の取付位置にバラツキが生じた場合でも、リヤアクスルケースに対する前面部形成片の連結位置を調整孔を介して調整すると共に、側面部形成片に対する補強連結体の連結位置を調整孔を介して調整することにより、リヤアクスルケースに補強連結体の後端部を確実に連結することができる。
【0057】
(2)請求項2記載の本発明では、補強連結体の中途部と車体フレームの後部との間に、連結体を介設している。
【0058】
このようにして、補強連結体の中途部と車体フレームの後部との間に、連結体を介設しているため、補強連結体と車体フレームの強度を向上させることができる。
【0059】
(3)請求項3記載の本発明では、前後方向に伸延する車体フレームの中途部にマスト支持体を外側方へ張り出し状に設け、同マスト支持体にフロントローダのマストを着脱自在に取り付け可能としたトラクタにおいて、前後方向に伸延する左右一対の前後伸延片により車体フレームの一部を形成し、両前後伸延片の後部間に連結部材を介設して、同連結部材とマスト支持体との間に補強連結体を介設している。
【0060】
このようにして、左右一対の前後伸延片の後部間に介設した連結部材とマスト支持体との間に、補強連結体を筋交い状態に介設しているため、車体フレームの捩り強度を向上させることができると共に、マスト支持体に作用したフロントローダからの荷重(モーメント)を補強連結体を介して車体フレームの後部に分散させることができて、車体フレームの一部への応力集中を防止することができる。その結果、マスト支持体によるフロントローダの安定支持を確保することができる。
【0061】
しかも、連結部材は、前後伸延片の内側面に連設した左右一対の側壁形成片と、両側壁形成片の後端部間に介設した後壁形成片と、両側壁形成片の下端部間に介設した底部形成片とを具備し、少なくとも左右一対の側壁形成片には作業機連結用の連結孔を形成している。
【0062】
このようにして、連結部材は、左右一対の側壁形成片と後壁形成片と底部形成片とから立体的に枠組構成しているため、かかる連結部材を介設した左右一対の前後伸延片の強度を向上させることができる。
【0063】
しかも、少なくとも左右一対の側壁形成片には作業機連結用の連結孔を形成しているため、連結部材に連結孔を介して各種作業機を簡単かつ確実に連結することができて、作業用途を容易に増大させることができる。
【図面の簡単な説明】
【図1】本発明に係るトラクタの側面説明図。
【図2】同トラクタの第1実施例としての車体フレームの側面図。
【図3】同車体フレームの平面図。
【図4】連結ブラケットの斜視図。
【図5】連結部材の斜視図。
【図6】第2実施例としての車体フレームの側面図。
【図7】同車体フレームの平面図。
【図8】第3実施例としての車体フレームの側面図。
【図9】同車体フレームの平面図。
【符号の説明】
A トラクタ
1 車体フレーム
2 原動機部
3 運転部
4 ミッション部
5 フロントアクスルケース
6 前車輪
7 リヤアクスルケース
8 後車輪
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tractor.
[0002]
[Prior art]
Conventionally, as one form of tractor, a mast support is provided in the middle of a vehicle body frame extending in the front-rear direction so as to project outward, and the mast of the front loader can be removably attached to the mast support. Yes (see, for example, Patent Document 1).
[0003]
The mast support is formed of a support piece that protrudes outward from the middle part of the vehicle body frame, and an attachment piece that is fixed to the top end portion of the support piece. The upper part is opened in a U-shape in plan view, and is attached with the lower end of the mast fitted to the attachment piece.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 6-101245
[Problems to be solved by the invention]
However, since the above-described mast support is only supported in a cantilevered state in the middle part of the vehicle body frame, the static load and live load of the front loader acting on the tip of the mast support are A large load (moment) acts on the connecting portion of the vehicle body frame connecting the base end portions of the mast support, and there is a problem that stable support of the front loader is not ensured.
[0006]
Therefore, in the present invention, in a tractor provided with a mast support extending outward in the middle part of the vehicle body frame extending in the front-rear direction, and the mast of the front loader attached to the mast support,
A reinforcing connecting body extending in the front-rear direction is interposed between the mast support and the rear axle case provided at the rear part of the vehicle body frame, and the rear end portion of the reinforcing connecting body is connected to the rear axle case via a connecting bracket. The connecting bracket is formed in a substantially L shape in plan view from a front surface forming piece that includes an adjustment hole and extends in the left-right direction and a side surface formation piece that includes the adjustment hole and extends in the front-rear direction. In the state where the front portion forming piece is superposed on the rear axle case in the front-rear direction while being adjustably connected through the adjustment hole, the side face forming piece is superposed in the left-right direction. The present invention provides a tractor characterized by being connected in an adjustable manner .
[0007]
The present invention is also characterized by the following configuration.
[0010]
(1) The connecting body is interposed between the middle part of the reinforcing connecting body and the rear part of the vehicle body frame.
[0011]
(2) In a tractor that has a mast support that protrudes outward in the middle of the body frame that extends in the front-rear direction, and the mast of the front loader can be removably attached to the mast support, it extends in the front-rear direction A part of the vehicle body frame is formed by a pair of left and right front and rear extending pieces, a connecting member is interposed between the rear portions of both front and rear extending pieces, and a reinforcing connecting body is interposed between the connecting member and the mast support. The connecting member includes a pair of left and right side wall forming pieces that are connected to the inner side surface of the front and rear extension pieces, a rear wall forming piece that is interposed between the rear end portions of the both side wall forming pieces, and a lower end portion of the both side wall forming pieces. A bottom surface forming piece interposed therebetween, and at least a pair of left and right side wall forming pieces formed with a connection hole for connecting a work machine .
[0012]
(5) The connecting member includes a pair of left and right side wall forming pieces connected to the inner surface of the front and rear extension pieces, a rear wall forming piece interposed between the rear end portions of the both side wall forming pieces, and the lower ends of the both side wall forming pieces. A bottom forming piece interposed between the parts, and at least a pair of left and right side wall forming pieces formed with a connection hole for connecting the work implement.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0014]
That is, the tractor according to the present invention is provided with a mast support extending outward in the middle of the vehicle body frame extending in the front-rear direction, and the mast of the front loader is attached to the mast support. A reinforcing connector extending in the front-rear direction is interposed between the rear axle case provided at the rear portion of the vehicle body frame.
[0015]
And the rear-end part of a reinforcement coupling body is connected with the working machine attachment part provided in the rear axle case.
[0016]
That is, the rear end portion of the reinforced connecting body is connected to the rear axle case via the connecting bracket, and the connecting bracket includes an adjustment hole and a front surface portion forming piece extending in the left-right direction, and an adjustment hole. While formed in a substantially L shape in a plan view from a side surface forming piece extending in the front-rear direction, the front surface forming piece is adjustably connected to the rear axle case in the front-rear direction through an adjustment hole. The reinforcing connector is connected to the side surface portion forming piece in an adjustable manner in the left-right direction.
[0017]
In addition to the above configuration, a connecting body can be interposed between the middle part of the reinforcing connecting body and the rear part of the vehicle body frame.
[0018]
A part of the vehicle body frame is formed by a pair of left and right front and rear extension pieces extending in the front and rear direction, and a connection member is interposed between the rear portions of both front and rear extension pieces, and between the connection member and the mast support. A reinforcing connector can also be interposed.
[0019]
Further, the connecting member includes a pair of left and right side wall forming pieces connected to the inner side surface of the front and rear extension pieces, a rear wall forming piece interposed between the rear end portions of the both side wall forming pieces, and a lower end portion of the both side wall forming pieces. A bottom forming piece interposed therebetween, and at least a pair of left and right side wall forming pieces is formed with a connection hole for connecting a work machine.
[0020]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0021]
A shown in FIG. 1 is a tractor according to the present invention, and a front loader B is detachably attached to the tractor A.
[0022]
That is, as shown in FIG. 1, the tractor A is provided with a prime mover portion 2 at the front portion of the body frame 1, a driving portion 3 is provided at a rear position of the prime mover portion 2, and a driver seat 30 provided in the driving portion 3. A transmission part 4 is provided at a lower position of the vehicle body. A pair of left and right front wheels 6 and 6 are attached to the lower part of the front part of the body frame 1 via a front axle case 5, while a rear axle case is provided on the left and right sides of the transmission part 4. Rear wheels 8 and 8 are attached via 7,7.
[0023]
As shown in FIGS. 2 and 3, the vehicle body frame 1 includes a front left / right extension piece 11 extending in the left / right direction between the front end portions of a pair of left / right front / rear extension pieces 10, 10 extending in the front / rear direction. The frame body 13 is formed as a frame by horizontally extending the middle part left and right extension pieces 12 between the middle parts of both front and rear extension pieces 10 and 10, and the front part of both front and rear extension pieces 10 and 10. A front axle case support 14 is installed between them, and a connecting member 15 is interposed between the rear ends of the front and rear extension pieces 10 and 10.
[0024]
The transmission unit 4 is connected to the rear ends of the pair of left and right front and rear extension pieces 10 and 10 so that the transmission unit 4 functions as a part of the vehicle body frame 1.
[0025]
In addition, mast supports 16 and 16 extending outwardly are provided in the middle of the pair of left and right front and rear extension pieces 10 and 10, respectively, and a plate-like shape is formed at the outer end of each mast support 16 and 16. Mast connecting pieces 17 and 17 are provided, and the lower ends of the masts 18 and 18 formed so as to rise upward are detachably connected to the mast connecting pieces 17 and 17, respectively.
[0026]
Between the left and right side parts of the front left and right extension pieces 11, a guard frame 20 formed in a frontal portal type via guard frame connecting pieces 19, 19 is erected, and each guard frame connecting piece 19, 19 Reinforcing frames 22 and 22 extending in the front-rear direction are interposed between the connecting protrusions 21 and 21 protruding forward from the middle part of the masts 18 and 18.
[0027]
The prime mover section 2 is provided with an engine E, a fuel tank 26, and the like, and these are covered with a bonnet 27.
[0028]
The driving unit 3 is provided with a steering wheel 29 via a handle post 28, and a driver seat 30 is disposed at a position behind the steering wheel 29 and immediately above the transmission unit 4. 31 is a shift lever.
[0029]
The mission unit 4 is linked to the engine E through a transmission case 32. Reference numeral 33 denotes a lift arm that lifts and lowers a work machine connected to the rear.
[0030]
As shown in FIG. 1, the front loader B includes a pair of left and right masts 18 and 18, a pair of left and right support arms 34 and 34 each having a base end attached to each mast 18 and 18, and both support arms. 34, 34 between the tip 35 of the 34, 34, lift cylinders 36, 36 interposed between the mast 18, 18 and the support arms 34, 34, between the mast 18, 18 and the bucket 35 Are provided with bucket cylinders 37, 37 and bucket link mechanisms 38, 38.
[0031]
2 and 3, the gist of the present invention is that the mast supports 16 and 16 and the rear axle cases 7 and 7 provided on the rear part of the vehicle body frame 1 via the transmission part 4 are provided. In the mast support reinforcing structure in which the mast supports 16 and 16 are reinforced by interposing a reinforcing connecting body 40 and 40 extending in the front-rear direction, the mast support as a first embodiment is described below. The body reinforcing structure will be described.
[0032]
[First embodiment]
In the mast support reinforcing structure as the first embodiment, a reinforcing connecting body 40 is connected to a connecting plate piece 41 fixed in the middle of the rear peripheral surface of the mast supporting body 16, and a front end portion 42a is provided to the connecting plate piece 41. A square pipe-shaped connecting body piece 42 that extends continuously and extends rearward, and an inner surface of the front portion 43a is connected to the outer side of the rear portion 42b of the connecting body piece 42 in an overlapped state on the inner and outer sides. The plate-like connecting piece 43 extends rearward, and the plate-like connecting piece 43 connects the rear portion 43b to the work machine mounting portion 44 provided on the rear axle case 7 via the connecting bracket 45. ing. 43 c is a rear axle case interference avoiding recess formed in the middle of the upper edge of the plate-like connecting piece 43.
[0033]
The work implement mounting portion 44 integrally forms a work implement mounting seat 46 on the rear peripheral surface of the rear axle case 7, and the connection bracket 45 and the work implement coupling body 47 are superposed on the work implement mounting seat 46. The connecting bolts 48 are integrally connected.
[0034]
Further, the rear end portion of the plate-like connecting piece 43 is connected via a connecting bracket 45 to a work machine mounting seat 46 formed integrally with the rear axle case 7, and the connecting bracket 45 is also shown in FIG. The rectangular plate-like front surface portion forming piece 45a extending in the left-right direction and the rectangular plate-shaped side surface portion forming piece 45b are formed in a substantially L shape in a plan view. A plurality (four in this embodiment) of adjustment holes 70 are formed, and a plurality of (six in this embodiment) adjustment holes 71 are formed in the side surface portion forming piece 45b. ing.
[0035]
In the state where the front surface forming piece 45a is superposed on the work implement mounting seat 46 in the front-rear direction, the left-right position can be adjusted via the adjustment hole 70 extending in the left-right direction by the connecting bolt 48 having the axis line in the front-rear direction. In the state where the rear end portion of the plate-like connecting piece 43 is overlapped with the side face forming piece 45b in the left and right direction (inside and outside), the connecting bolt 49 with the axis line in the left and right direction is used in the front and rear direction. It is connected through an adjustment hole 71 that extends so that the front-rear position can be adjusted.
[0036]
In this way, since the mast supports 16 and 16 and the rear axle cases 7 and 7 provided at the rear portion of the vehicle body frame 1 are provided with the reinforcing connecting bodies 40 and 40 extending in the front-rear direction, The load (moment) from the front loader B acting on the mast support 16, 16 can be distributed to the rear axle cases 7, 7 via the reinforcing coupling bodies 40, 40. Can be prevented. As a result, stable support of the front loader B by the mast supports 16 and 16 can be ensured.
[0037]
At this time, even when the mounting position of the front end portion of the reinforced connecting body 40 varies due to a manufacturing error or the like, the connection of the front portion forming piece 45a to the work machine mounting seat 46 of the rear axle case 7 is adjusted to extend in the left-right direction. After adjusting the left and right position through the hole 70, it can be performed by the connecting bolt 48, and the connection of the plate-like connecting piece 43 to the side surface forming piece 45b is adjusted through the adjustment hole 71 extending in the front-rear direction. Since this can be done later by the connecting bolt 49, the rear end portion of the reinforcing connector 40 can be reliably connected to the rear axle case 7.
[0038]
In the present embodiment, the adjustment holes 70 and 71 are formed in elongated holes extending in the left-right direction or the front-rear direction so that the position adjustment in the left-right direction or the front-rear direction can be performed. Not only the long hole but also a hole having a slightly larger diameter than the outer diameter of the connecting bolts 48 and 49 can be formed.
[0039]
As shown in FIG. 5, the connecting member 15 includes a pair of left and right plate-like side wall forming pieces 50, 50 respectively connected to the inner side surfaces of the pair of left and right front and rear extension pieces 10, 10, and both side wall forming pieces 50. 50, a plate-like rear wall forming piece 51 interposed between the rear end portions, and a plate-like bottom surface forming piece 52 interposed between the lower end portions of both side wall forming pieces 50, 50, The forming pieces 50, 50, 52 are formed with connection holes 53, 53, 54 for connecting work machines, respectively. 55 is a transmission part connecting plate body, 56 is a connecting shaft insertion hole formed in the front and rear extension piece 10 for inserting a brake pedal shaft (not shown), 57 is a recess for avoiding interference such as a connecting shaft, 58 is a reinforcing rib, 58 These are connection holes formed in the transmission unit connection plate 55.
[0040]
In this way, the connecting member 15 is configured in a three-dimensional framework from the pair of left and right plate-like side wall forming pieces 50, 50, the plate-like rear wall forming piece 51, and the plate-like bottom forming piece 52. Further, the strength of the pair of left and right front and rear extension pieces 10 and 10 provided with the connecting member 15 can be improved.
[0041]
In addition, since the forming pieces 50, 50, 51 are formed with connection holes 53, 53, 54 for connecting work machines, various work machines can be easily connected to the connection member 15 via the connection holes 53, 53, 54. And it can connect reliably and can increase work use easily.
[0042]
[Second Embodiment]
As shown in FIGS. 6 and 7, the mast support reinforcing structure as the second embodiment has the same basic structure as the mast support reinforcing structure as the first embodiment described above. The difference is that a connecting body 60, 60 is interposed between the middle part of 40, 40 and the rear part of the longitudinally extending pieces 10, 10.
[0043]
That is, the connecting body 60 is formed of a front surface forming piece 60a, a side surface forming piece 60b, and a horizontal connecting portion forming piece 60c, and the front member forming piece 60a is connected to the rear wall forming piece 51 of the connecting member 15. While being connected by 61, the side surface forming piece 60b is connected by the connecting bolt 63 to the inner surface of the rear portion of the connecting body piece 42 of the reinforcing connecting body 40 via the connecting seat 62.
[0044]
In this way, since the connecting body 60 is interposed between the middle part of the reinforcing connecting body 40 and the rear part of the front and rear extension piece 10, the strength of the reinforcing connecting body 40 and the front and rear extension piece 10 can be improved. Can do.
[0045]
Here, similarly to the connection bracket 45 described above, the connecting body 60 also has a plurality of adjustment holes (not shown) extending in the left-right direction in the front surface portion forming piece 60a, while the front surface portion forming piece 60b has a front-rear direction. A plurality of adjustment holes (not shown) extending in the left and right directions are formed so that the connection positions in the left-right direction and the front-rear direction can be adjusted as appropriate.
[0046]
Therefore, the connecting body 60 can be reliably connected regardless of the mounting position of the reinforcing connecting body 40.
[0047]
[Third embodiment]
As shown in FIGS. 8 and 9, the mast support reinforcing structure as the third embodiment has the same basic structure as the mast support reinforcing structure as the first embodiment described above, but the connecting member. This is different in that reinforcing connection bodies 40 and 40 are interposed between 15 and the mast supports 16 and 16.
[0048]
That is, in the mast support reinforcing structure as the third embodiment, the front connecting plate piece 65 in which the reinforcing connecting body 40 is fixed to the middle portion of the rear peripheral surface of the mast support 16 and the front connecting plate piece. A connecting body piece 66 having an L-shaped cross-section extending in the rear direction by connecting a front end portion 66a to 65 and a rear end portion 66b of the connecting body piece piece 66 are connected to form a side wall of the connecting member 15. It is formed from a rear connection piece 68 attached to the piece 50 by a connection bolt 67.
[0049]
In this way, between the connecting member 15 interposed between the rear portions of the pair of left and right front and rear extension pieces 10 and 10 and the mast support bodies 16 and 16, the reinforcing connecting bodies 40 and 40 are interposed in a bracing state. Therefore, the torsional strength of the vehicle body frame 1 can be improved, and the load (moment) from the front loader B acting on the mast supports 16 and 16 can be applied to the rear portion of the vehicle body frame 1 via the reinforcing connectors 40 and 40. The stress concentration on a part of the vehicle body frame 1 can be prevented. As a result, stable support of the front loader B by the mast supports 16 and 16 can be ensured.
[0050]
In addition, the shape of the connecting body main piece 66 can be formed not only in an L-shaped cross section but also in a square pipe shape or the like as long as rigidity can be ensured.
[0051]
【The invention's effect】
(1) In the present invention described in claim 1, in a tractor in which a mast support is provided in an outwardly projecting manner in the middle part of the vehicle body frame extending in the front-rear direction, and a mast of a front loader is attached to the mast support. A reinforcing connector extending in the front-rear direction is interposed between the mast support and a rear axle case provided at the rear portion of the vehicle body frame.
[0052]
In this way, since the reinforcing connecting body extending in the front-rear direction is interposed between the mast support and the rear axle case provided at the rear part of the vehicle body frame, the front loader acting on the mast support The load (moment) can be distributed to the rear axle case via the reinforcing coupling body, and stress concentration on a part of the vehicle body frame can be prevented. As a result, stable support of the front loader by the mast support can be ensured.
[0055]
Moreover , the rear end portion of the reinforced connecting body is connected to the rear axle case via the connecting bracket, and the connecting bracket includes a front portion forming piece that includes the adjusting hole and extends in the left-right direction, and an adjusting hole. While formed in a substantially L shape in a plan view from a side surface forming piece extending in the front-rear direction, the front surface forming piece is adjustably connected to the rear axle case in the front-rear direction through an adjustment hole. The reinforcing connector is connected to the side surface portion forming piece in an adjustable manner in the left-right direction.
[0056]
In this way, the connection bracket is formed in a substantially L shape in plan view from the front surface forming piece and the side surface forming piece having the adjustment hole, and the front surface forming piece is superposed on the rear axle case in the front-rear direction. In the state where the reinforcing connection body is superposed in the left-right direction in a state where the reinforcing connecting body is overlapped in the left-right direction, it can be adjusted through the adjustment hole. Even if there is variation in the mounting position of the tip of the reinforcing connector, the connecting position of the front surface forming piece to the rear axle case is adjusted via the adjustment hole, and the connecting position of the reinforcing connector to the side surface forming piece is adjusted. By adjusting through the hole, it is possible to reliably connect the rear end portion of the reinforcing connector to the rear axle case.
[0057]
(2) In the present invention described in claim 2, the connecting body is interposed between the middle part of the reinforcing connecting body and the rear part of the vehicle body frame.
[0058]
Thus, since the connecting body is interposed between the middle part of the reinforcing connecting body and the rear part of the vehicle body frame, the strength of the reinforcing connecting body and the vehicle body frame can be improved.
[0059]
(3) In the third aspect of the present invention, a mast support is provided outwardly in the middle of the vehicle body frame extending in the front-rear direction, and the mast of the front loader can be detachably attached to the mast support. In this tractor, a part of the vehicle body frame is formed by a pair of left and right front and rear extension pieces extending in the front and rear direction, and a connection member is interposed between the rear portions of both front and rear extension pieces, and the connection member and the mast support A reinforcing connector is interposed between the two.
[0060]
Thus, the torsional strength of the vehicle body frame is improved since the reinforcing connecting body is interposed between the connecting member interposed between the rear portions of the pair of left and right front and rear extension pieces and the mast support. In addition, the load (moment) from the front loader that has acted on the mast support can be distributed to the rear part of the vehicle body frame via the reinforcing connector, preventing stress concentration on a part of the vehicle frame. can do. As a result, stable support of the front loader by the mast support can be ensured.
[0061]
In addition , the connecting member includes a pair of left and right side wall forming pieces that are connected to the inner side surface of the front and rear extension pieces, a rear wall forming piece that is interposed between the rear end portions of the both side wall forming pieces, and a lower end portion of the both side wall forming pieces. comprising the interposed the bottom surface portion forming member between, to form a connecting hole for the working machine coupled to the at least a pair of right and left side walls forming member.
[0062]
Thus, since the connecting member is three-dimensionally framed from the pair of left and right side wall forming pieces, the rear wall forming piece, and the bottom forming piece, the pair of left and right front and rear extension pieces provided with the connecting member is used. Strength can be improved.
[0063]
Moreover, since at least a pair of left and right side wall forming pieces are formed with connection holes for connecting work machines, various work machines can be easily and reliably connected to the connection members via the connection holes. Can be easily increased.
[Brief description of the drawings]
FIG. 1 is an explanatory side view of a tractor according to the present invention.
FIG. 2 is a side view of a vehicle body frame as a first embodiment of the tractor.
FIG. 3 is a plan view of the vehicle body frame.
FIG. 4 is a perspective view of a connection bracket.
FIG. 5 is a perspective view of a connecting member.
FIG. 6 is a side view of a vehicle body frame as a second embodiment.
FIG. 7 is a plan view of the vehicle body frame.
FIG. 8 is a side view of a vehicle body frame as a third embodiment.
FIG. 9 is a plan view of the vehicle body frame.
[Explanation of symbols]
A Tractor 1 Body frame 2 Motor unit 3 Driving unit 4 Mission unit 5 Front axle case 6 Front wheel 7 Rear axle case 8 Rear wheel

Claims (3)

前後方向に伸延する車体フレーム(1)の中途部にマスト支持体(16,16)を外側方へ張り出し状に設け、同マスト支持体(16,16)にフロントローダ( )のマスト(18,18)を取り付けたトラクタにおいて、
マスト支持体(16,16)と、車体フレーム(1)の後部に設けたリヤアクスルケース(7,7)との間に、前後方向に伸延する補強連結体(40,40)を介設し
同補強連結体 (40,40) の後端部は、連結ブラケット (45,45) を介してリヤアクスルケース (7,7) に連結すると共に、連結ブラケット (45) は、調整孔 (70) を具備して左右方向に伸延する前面部形成片 (45a) と、調整孔 (70) を具備して前後方向に伸延する側面部形成片 (45b) とから平面視略L字状に形成して、前面部形成片 (45a) をリヤアクスルケース (7) に前後方向に重合させた状態にて調整孔 (70) を介して調整自在に連結する一方、側面部形成片 (45b) に補強連結体 (40) を左右方向に重合させた状態にて調整自在に連結したことを特徴とするトラクタ。
A mast support (16, 16) is provided in the middle of the vehicle body frame (1) extending in the front-rear direction so as to project outward, and the mast (18 ) of the front loader ( B ) is attached to the mast support (16, 16). , 18)
Between the mast support (16, 16) and the rear axle case (7, 7) provided at the rear of the vehicle body frame (1) , a reinforcing connecting body (40, 40) extending in the front-rear direction is interposed ,
The rear end portion of the reinforcing connection member (40, 40) is configured to coupled to the rear axle case (7,7) via a connecting bracket (45, 45), the connection bracket (45), the adjustment holes (70) A front surface forming piece (45a) extending in the left-right direction and a side surface forming piece (45b) extending in the front-rear direction including the adjustment hole (70) are formed in a substantially L shape in plan view. The front part forming piece (45a) is adjustably connected to the rear axle case (7) in the front-rear direction through the adjustment hole (70) , and the side connecting part (45b) is reinforced. A tractor characterized in that (40) is connected in an adjustable manner in a state where it is superposed in the left-right direction .
補強連結体(40)の中途部と車体フレーム(1)の後部との間に、連結体(60)を介設したことを特徴とする請求項記載のトラクタ。Middle part and between the rear portion of the body frame (1), the tractor according to claim 1, wherein the coupling body (60) is interposed reinforcing connection member (40). 前後方向に伸延する車体フレーム (1) の中途部にマスト支持体 (16,16) を外側方へ張り出し状に設け、同マスト支持体 (16,16) にフロントローダ ( ) のマスト (18,18) を着脱自在に取り付け可能としたトラクタにおいて、
前後方向に伸延する左右一対の前後伸延片 (10,10) により車体フレーム (1) の一部を形成し、両前後伸延片 (10,10) の後部間に連結部材 (15) を介設して、同連結部材 (15) とマスト支持体 (16,16) との間に補強連結体 (40,40) を介設し、
連結部材 (15) は、前後伸延片 (10,10) の内側面に連設した左右一対の側壁形成片 (50,50) と、両側壁形成片 (50,50) の後端部間に介設した後壁形成片 (51) と、両側壁形成片 (50,50) の下端部間に介設した底面部形成片 (52) とを具備し、
少なくとも左右一対の側壁形成片 (50,50) には作業機連結用の連結孔 (53,53) を形成したことを特徴とするトラクタ。
A mast support (16, 16) is provided in the middle of the vehicle body frame (1) extending in the front-rear direction so as to project outward, and the mast (18 ) of the front loader ( B ) is attached to the mast support (16, 16). , 18) can be attached detachably,
A part of the vehicle body frame (1) is formed by a pair of left and right front and rear extension pieces (10, 10) extending in the front-rear direction, and a connecting member (15) is interposed between the rear portions of both front and rear extension pieces (10, 10). Then , a reinforcing connector (40, 40) is interposed between the connecting member (15) and the mast support (16, 16) ,
The connecting member (15) is provided between the pair of left and right side wall forming pieces (50, 50) connected to the inner surface of the front and rear extension pieces (10, 10 ) and the rear end portions of the both side wall forming pieces (50, 50). It comprises a rear wall forming piece (51) interposed, and a bottom surface forming piece (52) interposed between the lower ends of both side wall forming pieces (50, 50) ,
Tractor, characterized in that the formation of the connection hole (53, 53) for the working machine coupled to the at least a pair of right and left side walls forming member (50, 50).
JP2003132291A 2003-05-09 2003-05-09 Tractor Expired - Fee Related JP4220299B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003132291A JP4220299B2 (en) 2003-05-09 2003-05-09 Tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003132291A JP4220299B2 (en) 2003-05-09 2003-05-09 Tractor

Publications (2)

Publication Number Publication Date
JP2004330982A JP2004330982A (en) 2004-11-25
JP4220299B2 true JP4220299B2 (en) 2009-02-04

Family

ID=33507214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003132291A Expired - Fee Related JP4220299B2 (en) 2003-05-09 2003-05-09 Tractor

Country Status (1)

Country Link
JP (1) JP4220299B2 (en)

Also Published As

Publication number Publication date
JP2004330982A (en) 2004-11-25

Similar Documents

Publication Publication Date Title
US8047557B2 (en) Vehicle body frame structure
KR20110112388A (en) Work vehicle
US4781260A (en) Framework structure for vehicles
KR100501598B1 (en) Working vehicle having a front loader and boom structure of the front loader
JP4220299B2 (en) Tractor
JP5658019B2 (en) Farm tractor
JP3224222B2 (en) Car fuel tank support structure
JP3917448B2 (en) Tractor front guard device
JP4281143B2 (en) Rear subframe structure of the vehicle
JP2000344169A (en) Body frame for motorcycle
JP5156294B2 (en) Construction machine mainframe and construction machine equipped with the same
JP5476151B2 (en) Riding machine
JP2011102050A (en) Riding type agricultural working machine
JP3894608B2 (en) Passenger-type management work vehicle
JP3947024B2 (en) Loader working machine
JP3920405B2 (en) Small passenger work vehicle
JP2000255278A (en) Fuel tank structure for vehicle
JP3778378B2 (en) Tractor safety frame mounting structure
JP5411674B2 (en) Riding machine
JP2003278179A (en) Reinforcing structure for boom pivotal support part
JP5710875B2 (en) Riding machine
JPH047246Y2 (en)
JP2023161828A (en) work vehicle
JP5486888B2 (en) Ride type rice transplanter
JP4294400B2 (en) Manufacturing method of cab mount bracket

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050812

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080226

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080428

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20081014

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20081113

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111121

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees