JP3731649B2

JP3731649B2 - Auxiliary equipment for vehicle testing

Info

Publication number: JP3731649B2
Application number: JP2001306839A
Authority: JP
Inventors: 徹椎名; 健寺尾
Original assignee: 株式会社アルティア橋本; オリオンテクノ株式会社
Priority date: 2001-10-02
Filing date: 2001-10-02
Publication date: 2006-01-05
Anticipated expiration: 2021-10-02
Also published as: JP2003114171A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば大形車両の速度計試験用に好適で、乗込板を基枠に折り畳みかつ着脱可能に連結して、装置の移動時や保管時のコンパクト化と容易化を図り、この種装置の大形重量化に対応するとともに、主要部品の交換に容易かつ合理的に応じられ、しかも設置面の多少の凹凸や試験条件に対応できるようにした車両の試験用補助装置に関する。
【０００２】
【従来の技術】
例えば自動車のスピ−ドメ−タ試験は、実公平２−５３９６号公報のように、車両の駆動輪をロ−ラ上に載せ、前記車両を駆動してロ−ラを回転させ、その際のロ−ラの回転速度と、車両のスピ−ドメ−タの表示を比較して、該メ−タの表示精度を試験していた。
この場合、試験中に駆動輪がロ−ラから飛び出す惧れがあり、その飛び出し防止手段として、例えば実開平５−５２７６４号公報では、駆動輪の前方に補助ロ−ラを出没可能に設け、該補助ロ−ラをスピ−ドメ−タ試験時に前方に突出し、駆動輪と当接可能にしていた。
【０００３】
また、四輪駆動車のスピ−ドメ−タ試験においては、例えば実開昭６４−６５５９号公報のように、前後各一対のロ−ラ上に各輪を載せて試験しているが、この場合の駆動輪の飛び出し防止手段として、左右の前輪または後輪を回転自在な一対のフリ−ロ−ラ上に載せ、当該車輪のトルクを吸収していた。
このようなフリ−ロ−ラを備えた飛び出し防止装置は、前述のスピ−ドメ−タ試験の他にブレ−キ試験にも使用され、その使用形態として試験場の定位置、例えばピットに設置する固定式と、移動可能な可搬式とがある。
【０００４】
このうち、可搬式の飛び出し防止装置は、一対のフリ−ロ−ラを回転自在に支持する基枠と、その両側に固定した一対の乗り込み板とからなり、これを試験時に試験場の床面に設置し、前記乗り込み板を介し被検車両を乗り込ませ、その対象車輪を一対のフリ−ロ−ラ上に載せて空転させ、試験終了後は基枠に設けた把手とキャスタ−を介して移動させていた。
【０００５】
この従来の装置は、許容輪荷重が１トン程度を対象にし、比較的小形軽量で簡単に移動できたが、例えば許容輪荷重が５トン程度の後輪二軸を備えた大形トラックや、６輪駆動の特殊大形トラックになると、前述の構造では装置が大形重量化し、その移動や試験に対応できない。
【０００６】
【発明が解決しようとする課題】
本発明はこのような問題を解決し、例えば大形車両の速度計試験用に好適で、乗込板を基枠に折り畳みかつ着脱可能に連結して、該装置の移動時や保管時のコンパクト化と容易化を図り、この種装置の大形重量化に対応するとともに、主要部品の交換に容易かつ合理的に応じられ、しかも設置面の多少の凹凸や試験条件に対応できるようにした車両の試験用補助装置を提供することを目的とする。
【０００７】
【課題を解決するための手段】
このため、請求項１の発明は、被検車輌の車輪を載置可能な複数のロ−ラを回転自在に支持する基枠と、該基枠の相対する枠体に、車輪を乗り上げ可能な乗込板を上下方向へ回動可能に連結し、前記ロ−ラの両側の枠体にキャスタ−を回転自在に支持するキャスタ−ブラケットまたは支持板を設け、前記キャスタ−の床面着地時、前記基枠を床面から浮上または着地可能にした車両の試験用補助装置において、前記ブラケットまたは支持板に前記キャスタ−ブラケットを上下方向に回動可能に連結し、前記キャスタ−ブラケットの上端部にハンドルを嵌合可能に設け、該ハンドルの起倒操作を介してキャスタ−ブラケットを起倒可能に設け、かつ床面に着地したキャスタ−を支点に、前記基枠を床面から浮上または床面に着地可能にして、ハンドルの起倒操作によるてこの作用を利用して、大形重量の基枠ないし補助装置を合理的かつ容易に上げ下げ可能にし、その際の労力の負担を軽減して、基枠の移動と設置を容易に行なえるようにしている。
【０００８】
請求項２の発明は、前記ロ−ラに対する車輪の非載置時、前記基枠を床面に着地可能にし、堅牢かつ大重量の基枠ないし補助装置の設置と移動に応じられるようにして、大形車両の試験に好適にしている。
【００１１】
【発明の実施の形態】
以下、本発明を６輪駆動の特殊大形トラックのスピ−ドメ−タ試験用に適用した図示の実施形態について説明すると、図１乃至図７において１は試験場の床面で、その所定位置にピット２が設けられている。
前記ピット２内に一対のテストロ−ラ３，３が回転可能に支持され、この一方のテストロ−ラ３に回転数検出器（図示略）と、被検車両４の運転席のスピ−ドメ−タ（図示略）とが連係している。
【００１２】
前記ピット２の近接位置に左右一対の補助装置５が設置され、該装置５は、一対のロ−ラ６を互いに平行かつ回転自在に支持した基枠７と、該基枠７の両側に回動可能に連結した一対の乗込板８，８とを備えている。
【００１３】
前記基枠７は、枠体を構成する各一対の縦枠９と横枠１０とを溶接して略矩形に枠組みされ、これらの枠９，１０は同様なコ字形断面の型鋼で構成されているこのうち、前記縦枠９，９の内面にスペ−サ１１，１１がネジ止めされ、該スペ−サ１１，１１の内側にベアリングケ−ス１２，１２が取り付けられている。
前記ベアリングケ−ス１２にベアリング（図示略）が収容され、該ベアリングを介して前記テストロ−ラ３が回転自在に支持されている。
【００１４】
前記縦枠９の両端部は横枠１０の外側に若干突出し、該突出部９ａに一対のネジ孔１３が形成され、該ネジ孔１３に対向して一対のヒンジ押え１４，１５と、スライドヒンジ１６とが取り付けられている。
前記ヒンジ押え１４，１５は実質的に同一に構成され、これは縦長矩形の鋼板の上部に、各一対のピン孔１７，１８を前記ネジ孔１３と等ピッチに形成している。
【００１５】
前記スライドヒンジ１６はヒンジ押え１４，１５の間に配置され、これは縦長矩形の鋼板の上部にピン孔１９を形成し、その下半部に縦長の長孔２０を形成している。
そして、前記ピン孔１７，１８および長孔２０にガイドピン２１，２１の平滑軸部を挿入し、該ピン２１の軸端部に形成したネジ部２２を前記ネジ孔１３にねじ込んで、前記スライドヒンジ１６をヒンジ押え１４，１５の間に上下に摺動可能に取り付けている。
【００１６】
一方、前記ピン孔１９に枢支ピン２３の平滑軸部を挿入し、該ピン２３の軸端部に形成したネジ部２４を、乗込板８の基端部に突設した枢軸２５のネジ孔２６にねじ込んで、乗込板８，８の基端部を上下方向へ回動可能に連結している。図中、２３ａは枢支ピン２３の頭部に形成した係合凹部で、六角レンチ等の適宜工具（図示略）を挿入可能にしている。なお、ガイドピン２１にも同様な係合凹部が形成されている。
【００１７】
前記乗込板８は、鋼板を略Ｌ字形断面に折曲形成した幅広なスロ−プ板２７と、該スロ−プ板２７の内面に幅方向に沿って溶接した略台形状の複数の補強板２８とを有し、前記スロ−プ板２７の頂部側内面に前記枢軸２５を溶接している。
また、前記乗込板８は、補強板２８に隣接してスロ−プ板２７の先端部に溶接した略Ｌ字形断面の補強板２９と、前記複数の補強板２８の下端部に溶接した連結板３０とを有し、前記スロ−プ板２７の側片２７ａの下端縁と、補強板２９と連結板３０とを床面１上に設置可能にしている。
【００１８】
前記乗込板８は、試験時に横枠１０の外側に若干離間して配置され、前記側片２７ａの外面に鋼棒を上下方向に溶接した複数の凸部３１を設けている。
前記凸部３１は、被検車両４の飛び出し防止対象の車輪３２がスロ−プ板２７上を移動する際、前記凸部３１を横枠１０の外面に係合可能に配置され、前記乗込板８の押圧力を作用可能にしている。
実施形態では、後輪前軸側車輪を前記飛び出し防止対象車輪とし、後輪後軸側車輪を被検対象車輪にしている。
【００１９】
図中、３３は横枠１０の両端部外面に突設した係合片で、前記スロ−プ板２７の両側縁と係合可能に配置され、乗込板８の横ブレを防止可能にしている。３４は縦枠９および横枠１０の下端面に取り付けた複数のゴム板で、床面１に接地可能にされている。
【００２０】
前記一方の縦枠９の中央部上面に固定板３５が取り付けられ、該固定板３５上にガイドロ−ラ３６が回転自在に軸支され、前記車輪３２の外側面と係合可能に配置されている。
前記固定板３５に近接する縦枠９内に、コ字形金具３７がピン３８を介して揺動可能に連結され、該金具３７の外面にコ字形断面のブラケット３９が固定されている。
【００２１】
前記ブラケット３９の先端部に、ピン４０を介してコ字形断面のキャスタ−ブラケット４１が上下方向へ回動可能に連結され、該ブラケット４１の下端部に一対の操舵用キャスタ−４２，４２が回転自在に軸支されている。
前記キャスタ−ブラケット４１の側面形状は略ヘ字形に形成され、その上端部に軸４３が突設され、該軸４３に直管状のハンドル４４が着脱可能に嵌合している。
【００２２】
前記一方の縦枠９の下側片の両端部に、ピン４５，４５が上向きに突設され、該ピン４５，４５の直上の上側片に通孔４６，４６が形成されている。
前記通孔４６，４６にＵ字管状の手押しハンドル４７が挿入され、該ハンドル４７の両端部を前記ピン４５，４５に抜き差し可能に嵌合している。
前記縦枠９，９の両端部の上側片は図６のように切り欠かれ、該切欠部９ｂを介して、前記枢支ピン２３の取付用工具を操作可能にしている。
【００２３】
前記他方の縦枠９の両端部に支持板４８，４８が固定され、該支持板４８，４８に管状のボス４９，４９が溶接され、該ボス４９，４９にキャスタ−ブラケット５０に突設したピン５１が回動自在に挿入されている。
前記ブラケット５０の下端に走行用キャスタ−５２が回転自在に軸支され、また前記ブラケット５０の上端部に、前記ハンドル４４と同様なハンドル（図示略）を着脱可能にしている。
【００２４】
このように構成した車両の試験用補助装置は、左右一対の補助装置５で構成され、これは概ね一対のロ−ラ−６を回転自在に支持した基枠７と、該枠７の両側に回動可能に連結する一対の乗込板８，８とからなり、乗込板８，８は実質上同一であるから、基枠７と乗込板８とを製作する。
【００２５】
このうち、基枠７は縦横枠９，１０を矩形に枠組みし、これらの間に一対のロ−ラ６を回転自在に支持し、一方の縦枠９に一対のピン４５と通孔４６を設け、前記縦枠９の中央部にガイドロ−ラ３６を取り付け、その外側にピン３８を介して、操舵用キャスタ−４２を揺動可能に取り付ける。
【００２６】
また、他方の縦枠９の両端部に支持板４８を取り付け、該板４８にピン５１を介して、走行用キャスタ−５２，５２を上下に回動可能に取り付ける。
更に、横枠１０の両端部外面に一対の係合片３３を溶接し、これら縦横枠９，１０の下面にゴム板３４をネジ止めする。
【００２７】
前記乗込板８は、スロ−プ板２７と補強板２８，２９および連結板３０をプレス成形し、これらを溶接するとともに、スロ−プ板２７の側片２７ａに凸部３１である鋼棒を溶接し、またスロ−プ板２７の頂部内面に枢軸２５を溶接する。
【００２８】
こうして製作した一つの基枠７と一対の乗込板８を用意し、これらを組み付ける。この組み付けは図６のようで、縦枠９の突出部９ａの内面に一対のヒンジ押え１４，１５と、それらの間にスライドヒンジ１６を配置し、それらのピン孔１４，１８および長孔２０に一対のガイドピン２１を挿入し、かつそのネジ部２２を突出部９ａのネジ孔１３にねじ込む。
【００２９】
次に、枢支ピン２３をピン孔１９に挿入し、その軸端部のネジ部２４を枢軸２５のネジ孔２６にねじ込む。
このようにして乗込板８は、突出部９ａ，９ａの間に回動可能に連結されるとともに、スライドヒンジ１６の長孔２０に沿って上下に移動可能に連結される。また、乗込板８の基部側端縁が係合片３３，３３の間に係合可能に配置され、凸部３１，３１が横枠１０の外面に係合可能に配置される。
【００３０】
こうして組み付けた補助装置５は、不使用時は乗込板８，８を折り畳んで適所に保管される。
すなわち、この場合はキャスタ−４２，５２が床面１の直上に離間して位置し、基枠７がゴム板３４を介して床面１上に安定して置かれる。したがって、補助装置５は、基枠と一対の乗込板とが一体構造のものに比べて、コンパクトに保管され、保管スペ−スのコンパクト化を図れるとともに、基枠と一対の乗込板とを分離させたものに比べて、それら保管や取り扱いが容易になる。
【００３１】
このような状況の下で補助装置５を使用する場合は、乗込板８，８の折り畳み状態を維持し、ハンドル４４および同様なハンドル（図示略）を、軸４３およびキャスタ−ブラケット５０の上端部に差し込み、これをピン３９，５１を支点に起立回動して、キャスタ−４２，５２を床面１上に着地させ、かつその際の反力で基枠７を床面１上に浮かせる。
【００３２】
そして、前記ハンドル４４の差し込み状態を維持するとともに、ピン４５，４５にハンドル４７の両端部を差し込んでハンドル４７を取り付け、該ハンドル４７を押し動かし若しくは引き動かし、また前記ハンドル４４を左右へ操作して、これにキャスタ−４２を同動させ、補助装置５の移動を操舵する。
【００３３】
前記補助装置５を所定位置、つまり床面１上の設置位置へ移動させたところで、ハンドル（図示略）をキャスタ−ブラケット５０の上端部に差し込み、前記ハンドルおよびハンドル４４をピン３９，５１を支点に傾倒回動し、キャスタ−４２，５２を床面１上から浮かせ、基枠７を床面１上に着地させる。その際、基枠７はゴム板３４を介して床面１上に安定して収容される。
【００３４】
このように補助装置５は、乗込板８，８を折り畳んで移動し得るから、基枠と一対の乗込板が一体構造のものに比べて、移動スペ−スがコンパクトになり、これを容易かつ円滑に行なえるとともに、基枠と一対の乗込板を分離したものに比べて、それらを一つ一つ持ち運ぶ不合理と労力の負担を軽減する。
【００３５】
この後、ハンドル４４およびハンドル４７を引き抜き、また重合した上側の乗込板８の先端部を保持し、これを枢支ピン２３を支点に引き上げ、そのまま外側へ倒して床面１上に設置し、下側の乗込板８も同様に操作して、床面１上に設置する。
【００３６】
その際、前記設置部の床面１の一部に、例えば図７のような凹凸部１ａや段差があり、凹部側に乗込板８が位置すると、乗込板８の重量によって該乗込板８とスライドヒンジ１６とが一緒に下動し、乗込板８の底部が前記凹部１ａに着地して、凹凸部１ａでの設置を許容する。
【００３７】
このように設置しても、乗込板８や基枠７に異常な荷重が作用したり、枢支ピン２３や枢軸２５に異常な応力や捩れが作用したり、この後の被検車両４の乗り込みによって、異常な荷重や応力が乗込板８や基枠７に作用することはない。
なお、前述の設置によって、乗込板８の頂部とロ−ラ６上部との高さの差が増大するが、その差は車輪３２の直径に比べて僅少で、支障はない。
【００３８】
こうして、基枠７の両側、つまり前後位置に一対の乗込板８，８を位置付け、これらを床面１上に設置して、試験の準備作業が終了する。
この後、被検車両４を入場し、その飛び出し防止対象の車輪３２を乗込板８に乗り込ませ、これをロ−ラ６，６上に載せるとともに、速度計試験車輪をテストロ−ラ３，３上に乗り込ませる。
【００３９】
その際、前記乗込板８が前方へ押され、その基端部が基枠７側へ移動し、凸部３１，３１が横枠１０の外面に係合して、前記係合力が横枠１０の外面へ均一に作用し、また前記乗込板８の移動方向が規制され、乗込板８の異常な移動や応力による変形を防止する。なお、基枠７はゴム板３４の摩擦力によって移動を防止される。
【００４０】
この後、被検車両４を運転し、前記車輪３２を駆動してテストロ−ラ３，３を回転し、所定のスピ−ドメ−タ試験を行なう。その際、車輪３２の外側面がガイドロ−ラ３６に係合し、その位置を修正される。
前記試験終了後、被検車両４を運転し、前記車輪３２をテストロ−ラ３，３から退出し、補助装置５を撤去する。
【００４１】
前記補助装置５を撤去する場合は、何れか一方の乗込板８を保持し、これを枢支ピン２３を支点に引き上げ、かつ略１８０度回動して折り畳み、スロ−プ板２７の表面をロ−ラ６，６上に掛け渡す。
その際、スライドヒンジ１６が乗込板８と一緒に引き上げられ、これに枢支ピン２３が同動して横枠１０の直上へ移動し、前述の折り畳み状態を可能にする。
【００４２】
この後、他方の乗込板８を保持し、これを前述と同様に枢支ピン２３を引き上げ、かつ該ピン２３を略１８０度回動して折り畳み、スロ−プ板２７の表面を前記乗込板８の底部に重合し、その底部を上向きにする。この状況は図５のようで、上側の乗込板８の底部が略水平に位置し、一対のす乗込板８，８の重合状態が安定する。
【００４３】
そして、ハンドル４４および同様なハンドル（図示略）を、軸４３およびキャスタ−ブラケット５０の上端部に差し込み、これをピン３９，５１を支点に起立回動して、キャスタ−４２，５２を床面１上に着地させ、かつその際の反力で基枠７を床面１上に浮かせる。
【００４４】
この後、前記ハンドル４４の差し込み状態を維持するとともに、ピン４５，４５にハンドル４７の両端部を差し込んでハンドル４７を取り付け、該ハンドル４７を押し動かし若しくは引き動かし、また前記ハンドル４４を左右へ操作して、これにキャスタ−４２を同動させ、補助装置５の移動を操舵する。
【００４５】
前記補助装置５を保管位置へ移動させたところで、ハンドル（図示略）をキャスタ−ブラケット５０の上端部に差し込み、前記ハンドルおよびハンドル４４をピン３９，５１を支点に傾倒回動し、キャスタ−４２，５２を床面１上から浮かせ、基枠７を床面１上に着地させる。その後、前記ハンドルおよびハンドル４４，４７を引き抜けば良い。
【００４６】
なお、補助装置５は基枠７と乗込板８，８がボルトやビス等で着脱可能に組み付けられているから、使用時に基枠７や乗込板８が損傷若しくは破損した場合、これらを容易に修理し部品交換することができ、これらを一体構造としたものに比べ、合理的かつ長期に亘る使用を得られる。
【００４７】
図８および図９は本発明の応用形態を示し、前述の実施形態と対応する構成部分に同一の符号を用いている。
このうち、図８は本発明の第１の応用形態で、乗込板８の枢着構造に関する他の形態を示し、前述のヒンジ押え１４,１５やネジ孔１３、ガイドピン２１を省略している。
【００４８】
そして、その代わりに突出部９ａの内面に、矩形管材からなるスライドガイド５３を取り付け、該ガイド５３に矩形断面のスライドヒンジ２０を上下に摺動可能に嵌合して、部品点数を低減し構成を簡潔化して、安価に製作できるとともに、乗込板８の揺動や捩れを防止し、乗込板８の確実かつ安定した作動を図るようにしている。
【００４９】
図９は本発明の第２の応用形態を示し、この応用形態では前述の第１の応用形態のうち、スライドガイド５３を円管部材で構成し、これに円柱状のスライドピン２０を摺動可能に嵌合し、部品点数の低減し構成を簡潔化して、これを安価に製作できるとともに、乗込板８の上下動と揺動の複合作動を図り、その作動の自由度と融通性を得られるようにしている。
【００５０】
【発明の効果】
以上のように、請求項１の発明は、ブラケットまたは支持板に前記キャスタ−ブラケットを上下方向に回動可能に連結し、前記キャスタ−ブラケットの上端部にハンドルを嵌合可能に設け、該ハンドルの起倒操作を介してキャスタ−ブラケットを起倒可能に設け、かつ床面に着地したキャスタ−を支点に、前記基枠を床面から浮上または床面に着地可能にしたから、ハンドルの起倒操作によるてこの作用によって、大形重量の基枠を合理的かつ容易に上げ下げし、その移動または設置を実現するとともに、その際の労力の負担を軽減して、補助装置の移動と設置を容易に行なうことができる。
【００５１】
請求項２の発明は、前記ロ−ラに対する車輪の非載置時、前記基枠を床面に着地可能にしたから、堅牢かつ大重量の基枠ないし補助装置の設置と移動に応じられ、大形車両の試験に好適な効果がある。
【図面の簡単な説明】
【図１】本発明の使用状態を示す正面図で、大形車両のスピ−ドメ−タ−試験の状況を示している。
【図２】本発明の実施形態を示す斜視図である。
【図３】本発明の側面図で乗込板の図示を省略し、移動時および静止時の状況を示している。
【図４】図３の平面図で、乗込板の展開した使用状態を示している。
【図５】図１の要部を拡大して示す正面図で、大形車両のスピ−ドメ−タ−試験の状況と、乗込板の折り畳み状況を示している。
【図６】本発明に適用した基枠と乗込板との片側の連結状況を示す斜視図である。
【図７】本発明を床面の凹凸部に設置した状況を示す説明図である。
【図８】本発明の第２の実施形態の要部を示す斜視図で、基枠と乗込板との片側の連結状況を示している。
【図９】本発明の第３の実施形態の要部を示す斜視図で、基枠と乗込板との片側の連結状況を示している。
【符号の説明】
５補助装置
６ロ−ラ
７基枠
８乗込板
９枠体（縦枠）
１０枠体（横枠）
３１凸部
３２車輪
４２，５２キャスタ−[0001]
BACKGROUND OF THE INVENTION
The present invention is suitable for, for example, a speedometer test of a large vehicle, and the board is folded and detachably connected to the base frame so as to make the apparatus compact and easy when moving or storing. The present invention relates to an auxiliary device for testing a vehicle that can cope with an increase in the size and weight of a seed device, can easily and rationally respond to replacement of main parts, and can cope with some unevenness and test conditions of an installation surface.
[0002]
[Prior art]
For example, in a speedometer test of an automobile, as in Japanese Utility Model Publication No. 2-5396, a driving wheel of a vehicle is placed on a roller, the vehicle is driven, and the roller is rotated. The display accuracy of the meter was tested by comparing the rotation speed of the roller and the display of the speedometer of the vehicle.
In this case, there is a possibility that the drive wheel may jump out of the roller during the test.For example, in Japanese Utility Model Publication No. 5-52764, an auxiliary roller is provided in front of the drive wheel so as to be able to appear and disappear. The auxiliary roller protrudes forward during the speed meter test, and can be brought into contact with the drive wheel.
[0003]
In the speed meter test of a four-wheel drive vehicle, for example, as in Japanese Utility Model Publication No. 64-6559, each wheel is mounted on a pair of front and rear rollers. As a means for preventing the drive wheels from popping out, the left and right front wheels or rear wheels are placed on a pair of freely rotatable rollers to absorb the torque of the wheels.
Such a pop-out prevention device equipped with a free roller is used for a brake test in addition to the above-mentioned speedometer test, and is installed at a fixed position of the test site, for example, in a pit. There are fixed type and movable type.
[0004]
Of these, the portable pop-out prevention device comprises a base frame that rotatably supports a pair of free rollers, and a pair of boarding plates fixed on both sides thereof. Installed, put the vehicle to be tested through the boarding board, put the target wheel on a pair of free rollers, idle, and move through the handle and casters provided on the base frame after the test is completed I was letting.
[0005]
This conventional device is intended for an allowable wheel load of about 1 ton and is relatively small and lightweight and can be moved easily. For example, a large truck having a rear wheel biaxial shaft with an allowable wheel load of about 5 ton, In the case of a special large truck with 6-wheel drive, the above-described structure increases the weight of the device, making it impossible to cope with movement and testing.
[0006]
[Problems to be solved by the invention]
The present invention solves such a problem, and is suitable for, for example, a speedometer test of a large vehicle. The board is folded and detachably connected to a base frame, so that the apparatus can be compactly moved and stored. A vehicle that is easy and reasonable to replace the main parts, and that can cope with some unevenness of the installation surface and test conditions, while making it easier and easier to handle and to increase the weight of this type of equipment. An object of the present invention is to provide an auxiliary device for testing.
[0007]
[Means for Solving the Problems]
Therefore, the invention of claim 1, b plurality of possible placing the wheels of the test vehicle - a base frame for rotatably supporting the La, on opposite frame of the base frame, can ride the vehicle wheel When the caster is landed on the floor surface, a caster bracket or a support plate for rotatably supporting the casters is provided on the frames on both sides of the roller. In the auxiliary test apparatus for a vehicle in which the base frame can float or land from the floor surface, the caster bracket is connected to the bracket or the support plate so as to be pivotable in the vertical direction, and an upper end portion of the caster bracket The caster bracket is provided so as to be able to be tilted via a tilting operation of the handle, and the base frame is levitated from the floor surface or the floor with the caster landing on the floor as a fulcrum. Make it possible to land on the surface Utilizing the lever action by raising and lowering the dollar, it is possible to rationally and easily raise and lower large-weight base frames or auxiliary devices, reduce the labor burden, and move and install the base frames. the are in so that can be performed easily.
[0008]
According to a second aspect of the present invention, when the wheel is not placed on the roller, the base frame can be landed on the floor surface, and can be adapted to the installation and movement of a strong and heavy base frame or auxiliary device. It is suitable for testing large vehicles.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention applied to a speedometer test for a special large truck with 6-wheel drive will be described below. In FIGS. A pit 2 is provided.
A pair of test rollers 3, 3 are rotatably supported in the pit 2. One of the test rollers 3 has a rotation speed detector (not shown) and a speedometer of the driver's seat of the vehicle 4 to be tested. (Not shown) are linked.
[0012]
A pair of left and right auxiliary devices 5 are installed in the proximity of the pit 2, and the device 5 rotates a pair of rollers 6 on both sides of the base frame 7 that supports the pair of rollers 6 in parallel and rotatably. It has a pair of boarding plates 8 and 8 movably connected.
[0013]
The base frame 7 is framed in a substantially rectangular shape by welding a pair of vertical frames 9 and horizontal frames 10 constituting the frame body, and these frames 9 and 10 are made of a steel plate having a similar U-shaped cross section. Among these, the spacers 11 and 11 are screwed to the inner surfaces of the vertical frames 9 and 9, and the bearing cases 12 and 12 are attached to the inner sides of the spacers 11 and 11.
A bearing (not shown) is accommodated in the bearing case 12, and the test roller 3 is rotatably supported through the bearing.
[0014]
Both ends of the vertical frame 9 slightly protrude outside the horizontal frame 10, a pair of screw holes 13 are formed in the protrusion 9 a, a pair of hinge pressers 14, 15 facing the screw hole 13, and a slide hinge 16 are attached.
The hinge retainers 14 and 15 are configured substantially the same, and a pair of pin holes 17 and 18 are formed at the same pitch as the screw holes 13 in the upper part of a vertically long rectangular steel plate.
[0015]
The slide hinge 16 is disposed between the hinge pressers 14 and 15, which has a pin hole 19 formed in the upper part of a vertically long rectangular steel plate and a vertically long hole 20 formed in the lower half thereof.
Then, the smooth shaft portions of the guide pins 21 and 21 are inserted into the pin holes 17 and 18 and the long hole 20, and the screw portion 22 formed on the shaft end portion of the pin 21 is screwed into the screw hole 13 so that the slide A hinge 16 is slidably attached between the hinge pressers 14 and 15.
[0016]
On the other hand, the smooth shaft portion of the pivot pin 23 is inserted into the pin hole 19, and the screw portion 24 formed at the shaft end portion of the pin 23 is screwed to the pivot 25 protruding from the base end portion of the boarding plate 8. Screwed into the hole 26, the base end portions of the boarding plates 8, 8 are connected so as to be rotatable in the vertical direction. In the figure, reference numeral 23a denotes an engagement recess formed in the head of the pivot pin 23, and an appropriate tool (not shown) such as a hexagon wrench can be inserted. A similar engaging recess is also formed in the guide pin 21.
[0017]
The board 8 includes a wide slope plate 27 formed by bending a steel plate into a substantially L-shaped cross section, and a plurality of substantially trapezoidal reinforcements welded to the inner surface of the slope plate 27 along the width direction. The pivot 25 is welded to the top side inner surface of the slope plate 27.
The boarding plate 8 is connected to the reinforcing plate 29 adjacent to the reinforcing plate 28 and welded to the tip of the slope plate 27 and welded to the lower ends of the plurality of reinforcing plates 28. The lower end edge of the side piece 27 a of the slope plate 27, the reinforcing plate 29, and the connecting plate 30 can be installed on the floor surface 1.
[0018]
The boarding plate 8 is arranged slightly apart from the outer side of the horizontal frame 10 during the test, and is provided with a plurality of convex portions 31 formed by welding steel bars in the vertical direction on the outer surface of the side piece 27a.
The convex portion 31 is disposed so that the convex portion 31 can be engaged with the outer surface of the lateral frame 10 when the wheel 32 to be prevented from popping out of the vehicle 4 moves on the slope plate 27, and the boarding is performed. The pressing force of the plate 8 can be applied.
In the embodiment, the rear wheel front axle side wheel is set as the protrusion prevention target wheel, and the rear wheel rear axle side wheel is set as the test target wheel.
[0019]
In the figure, 33 is an engagement piece projecting from the outer surface of both ends of the horizontal frame 10, and is arranged so as to be able to engage with both side edges of the slope plate 27 so as to prevent lateral displacement of the boarding plate 8. Yes. Reference numeral 34 denotes a plurality of rubber plates attached to the lower end surfaces of the vertical frame 9 and the horizontal frame 10 and can be grounded to the floor surface 1.
[0020]
A fixed plate 35 is attached to the upper surface of the central portion of the one vertical frame 9, and a guide roller 36 is rotatably supported on the fixed plate 35 and is disposed so as to be able to engage with the outer surface of the wheel 32. Yes.
A U-shaped bracket 37 is swingably connected to the vertical frame 9 adjacent to the fixing plate 35 via a pin 38, and a bracket 39 having a U-shaped cross section is fixed to the outer surface of the bracket 37.
[0021]
A caster bracket 41 having a U-shaped cross section is connected to the tip of the bracket 39 via a pin 40 so as to be rotatable in the vertical direction, and a pair of steering casters 42 and 42 are rotated at the lower end of the bracket 41. It is supported freely.
The side surface of the caster bracket 41 is formed in a substantially square shape. A shaft 43 projects from the upper end of the caster bracket 41, and a straight tubular handle 44 is detachably fitted to the shaft 43.
[0022]
Pins 45, 45 project upward from both ends of the lower piece of the one vertical frame 9, and through holes 46, 46 are formed in the upper piece immediately above the pins 45, 45.
A U-shaped hand handle 47 is inserted into the through holes 46, 46, and both ends of the handle 47 are fitted to the pins 45, 45 so that they can be inserted and removed.
The upper pieces at both ends of the vertical frames 9 and 9 are notched as shown in FIG. 6, and the tool for attaching the pivot pin 23 can be operated via the notch 9b.
[0023]
Support plates 48, 48 are fixed to both ends of the other vertical frame 9, tubular bosses 49, 49 are welded to the support plates 48, 48, and the caster bracket 50 projects from the bosses 49, 49. A pin 51 is rotatably inserted.
A traveling caster 52 is rotatably supported at the lower end of the bracket 50, and a handle (not shown) similar to the handle 44 is detachably attached to the upper end portion of the bracket 50.
[0024]
The test auxiliary device for a vehicle configured as described above is composed of a pair of left and right auxiliary devices 5, which are generally a base frame 7 that rotatably supports a pair of rollers 6, and both sides of the frame 7. Since it consists of a pair of boarding boards 8 and 8 connected so that rotation is possible and the boarding boards 8 and 8 are substantially the same, the base frame 7 and boarding board 8 are manufactured.
[0025]
Among them, the base frame 7 forms a rectangular frame 9 and 10 in a rectangular shape, and a pair of rollers 6 is rotatably supported between them. A pair of pins 45 and a through hole 46 are formed in one vertical frame 9. A guide roller 36 is attached to the center of the vertical frame 9 and a steering caster 42 is attached to the outside via a pin 38 so as to be swingable.
[0026]
Further, support plates 48 are attached to both ends of the other vertical frame 9, and traveling casters 52 and 52 are attached to the plate 48 via pins 51 so as to be rotatable up and down.
Further, a pair of engaging pieces 33 are welded to the outer surfaces of both ends of the horizontal frame 10, and the rubber plate 34 is screwed to the lower surfaces of the vertical and horizontal frames 9 and 10.
[0027]
The boarding plate 8 press-molds the slope plate 27, the reinforcing plates 28 and 29, and the connecting plate 30, welds them together, and a steel bar that is a convex portion 31 on the side piece 27a of the slope plate 27. , And the pivot 25 is welded to the inner surface of the top of the slope plate 27.
[0028]
One base frame 7 and a pair of boarding plates 8 manufactured in this way are prepared and assembled. This assembly is as shown in FIG. 6. A pair of hinge pressers 14 and 15 and a slide hinge 16 are arranged between the inner surfaces of the protrusions 9 a of the vertical frame 9, and the pin holes 14 and 18 and the long holes 20 are arranged therebetween. A pair of guide pins 21 are inserted into the screw holes 22 and the screw portions 22 are screwed into the screw holes 13 of the protruding portions 9a.
[0029]
Next, the pivot pin 23 is inserted into the pin hole 19, and the screw portion 24 at the end of the shaft is screwed into the screw hole 26 of the pivot shaft 25.
In this way, the boarding plate 8 is rotatably connected between the projecting portions 9 a and 9 a and is connected so as to be movable up and down along the long hole 20 of the slide hinge 16. Further, the base side edge of the boarding plate 8 is disposed so as to be engageable between the engagement pieces 33, 33, and the convex portions 31, 31 are disposed so as to be engageable with the outer surface of the horizontal frame 10.
[0030]
The auxiliary device 5 assembled in this way is stored in place by folding the boarding plates 8 and 8 when not in use.
In other words, in this case, the casters -42 and 52 are positioned so as to be spaced directly above the floor surface 1, and the base frame 7 is stably placed on the floor surface 1 via the rubber plate. Therefore, the auxiliary device 5 has a base frame and a pair of boarding plates that are stored more compactly than an integrated structure, and can be made compact in storage space. They are easier to store and handle than those separated.
[0031]
When the auxiliary device 5 is used under such circumstances, the boarding plates 8 and 8 are maintained in the folded state, and the handle 44 and a similar handle (not shown) are connected to the upper end of the shaft 43 and the caster bracket 50. The caster-42, 52 is landed on the floor surface 1 and the base frame 7 is floated on the floor surface 1 by the reaction force at that time. .
[0032]
The handle 44 is maintained in the inserted state, both ends of the handle 47 are inserted into the pins 45 and 45, the handle 47 is attached, the handle 47 is pushed or pulled, and the handle 44 is operated left and right. Then, the caster 42 is moved together with this, and the movement of the auxiliary device 5 is steered.
[0033]
When the auxiliary device 5 is moved to a predetermined position, that is, an installation position on the floor 1, a handle (not shown) is inserted into the upper end portion of the caster bracket 50, and the handle and handle 44 are supported by pins 39 and 51. The casters 42 and 52 are lifted from the floor surface 1 and the base frame 7 is landed on the floor surface 1. At that time, the base frame 7 is stably accommodated on the floor surface 1 via the rubber plate 34.
[0034]
As described above, the auxiliary device 5 can move by folding the boarding plates 8, 8, so that the movement space becomes compact compared to the case where the base frame and the pair of boarding plates are integrated. It can be done easily and smoothly, and reduces the unreasonable and labor burden of carrying them one by one, compared to a separate base frame and a pair of boarding plates.
[0035]
Thereafter, the handle 44 and the handle 47 are pulled out, and the top end portion of the superposed upper board 8 is held. The pivot pin 23 is pulled up to the fulcrum, and is dropped on the outside as it is and placed on the floor surface 1. The lower board 8 is similarly operated and installed on the floor 1.
[0036]
At that time, for example, when there is an uneven portion 1a or a step as shown in FIG. The plate 8 and the slide hinge 16 are moved down together, and the bottom portion of the boarding plate 8 is landed on the concave portion 1a to allow installation at the concave and convex portion 1a.
[0037]
Even if it installs in this way, an abnormal load acts on the boarding board 8 and the base frame 7, an abnormal stress and a twist act on the pivot pin 23 and the pivot 25, and the test vehicle 4 thereafter No abnormal load or stress acts on the board 8 or the base frame 7 due to the boarding.
The above-described installation increases the difference in height between the top of the boarding plate 8 and the upper portion of the roller 6, but the difference is small compared to the diameter of the wheel 32, and there is no problem.
[0038]
Thus, the pair of boarding plates 8 and 8 are positioned on both sides of the base frame 7, that is, the front and rear positions, and these are installed on the floor surface 1 to complete the test preparation work.
Thereafter, the vehicle 4 to be examined is entered, and the wheels 32 to be prevented from jumping are put on the board 8 and placed on the rollers 6 and 6, and the speedometer test wheels are set on the test rollers 3 and 6. Get on top of 3.
[0039]
At that time, the boarding plate 8 is pushed forward, the base end thereof moves to the base frame 7 side, the convex portions 31, 31 engage with the outer surface of the horizontal frame 10, and the engagement force is applied to the horizontal frame. 10 acts uniformly on the outer surface, and the moving direction of the boarding plate 8 is restricted to prevent abnormal movement of the boarding plate 8 and deformation due to stress. The base frame 7 is prevented from moving by the frictional force of the rubber plate 34.
[0040]
Thereafter, the vehicle 4 to be tested is driven, the wheels 32 are driven, the test rollers 3 and 3 are rotated, and a predetermined speed meter test is performed. At that time, the outer surface of the wheel 32 is engaged with the guide roller 36 and its position is corrected.
After completion of the test, the test vehicle 4 is driven, the wheel 32 is withdrawn from the test rollers 3 and 3, and the auxiliary device 5 is removed.
[0041]
When the auxiliary device 5 is to be removed, one of the boarding plates 8 is held, the pivot pin 23 is pulled up with the fulcrum as a fulcrum, and is folded by rotating about 180 degrees, and the surface of the slope plate 27 is removed. Is passed over rollers 6 and 6.
At that time, the slide hinge 16 is lifted together with the boarding plate 8, and the pivot pin 23 moves together with the slide pin 16 to move directly above the horizontal frame 10 to enable the above-described folded state.
[0042]
Thereafter, the other boarding plate 8 is held, and the pivot pin 23 is pulled up and folded by rotating the pin 23 by about 180 degrees in the same manner as described above, and the surface of the slope plate 27 is placed on the boarding plate. It superposes on the bottom of the insert plate 8 and the bottom is directed upward. This situation is as shown in FIG. 5, and the bottom portion of the upper board 8 is positioned substantially horizontally, and the overlapping state of the pair of soot boards 8 and 8 is stabilized.
[0043]
Then, the handle 44 and a similar handle (not shown) are inserted into the shaft 43 and the upper end portion of the caster bracket 50, and this is erected and pivoted with the pins 39 and 51 as fulcrums, so that the casters -42 and 52 are placed on the floor surface. 1 and the base frame 7 is floated on the floor surface 1 by the reaction force at that time.
[0044]
Thereafter, the handle 44 is maintained in the inserted state, both ends of the handle 47 are inserted into the pins 45 and 45, the handle 47 is attached, the handle 47 is pushed or pulled, and the handle 44 is operated left and right. Then, the caster 42 is moved together with this, and the movement of the auxiliary device 5 is steered.
[0045]
When the auxiliary device 5 is moved to the storage position, a handle (not shown) is inserted into the upper end portion of the caster bracket 50, and the handle and the handle 44 are tilted and rotated around the pins 39 and 51 as fulcrums. , 52 are lifted from the floor surface 1 and the base frame 7 is landed on the floor surface 1. Thereafter, the handle and the handles 44 and 47 may be pulled out.
[0046]
In addition, since the auxiliary | assistant apparatus 5 has assembled the base frame 7 and boarding board 8 and 8 so that attachment or detachment is possible with a volt | bolt, a screw, etc., when the base frame 7 and boarding board 8 are damaged or broken at the time of use, these are removed. It can be easily repaired and replaced, and can be used reasonably and for a long time as compared with an integrated structure.
[0047]
8 and 9 show an application form of the present invention, and the same reference numerals are used for the components corresponding to the above-described embodiment.
Among these, FIG. 8 shows a first application form of the present invention and shows another form relating to the pivoting structure of the boarding plate 8, omitting the above-described hinge pressers 14 and 15, screw holes 13, and guide pins 21. Yes.
[0048]
Instead, a slide guide 53 made of a rectangular tube material is attached to the inner surface of the protruding portion 9a, and the slide hinge 20 having a rectangular cross section is slidably fitted to the guide 53 so as to reduce the number of parts. In addition, the board can be manufactured at low cost, and the boarding plate 8 can be prevented from swinging and twisting, so that the boarding plate 8 can be operated reliably and stably.
[0049]
FIG. 9 shows a second application form of the present invention. In this application form, the slide guide 53 is formed of a circular tube member and the columnar slide pin 20 is slid on the slide guide 53 in the first application form described above. It is possible to fit, reduce the number of parts, simplify the structure, and manufacture it at low cost, and to achieve the combined operation of vertical movement and swinging of the boarding plate 8, increasing the degree of freedom and flexibility of the operation I try to get it.
[0050]
【The invention's effect】
As described above, according to the first aspect of the present invention, the caster bracket is connected to a bracket or a support plate so as to be pivotable in the vertical direction, and a handle is provided on the upper end of the caster bracket so that the handle can be fitted. The caster bracket is provided so that it can be raised and lowered via the raising / lowering operation of the vehicle, and the base frame can be lifted from the floor or landed on the floor with the caster landing on the floor as a fulcrum. Due to the lever action by the tilting operation, the large weight base frame can be raised and lowered rationally and easily, and its movement or installation is realized, and the burden of labor at that time is reduced, and the auxiliary device is moved and installed. It can be done easily .
[0051]
In the invention of claim 2 , since the base frame can be landed on the floor surface when the wheel is not mounted on the roller, it can respond to the installation and movement of a strong and heavy base frame or auxiliary device, This is suitable for testing large vehicles.
[Brief description of the drawings]
FIG. 1 is a front view showing a use state of the present invention, and shows a state of a speed meter test for a large vehicle.
FIG. 2 is a perspective view showing an embodiment of the present invention.
FIG. 3 is a side view of the present invention, omitting illustration of a boarding plate, and showing a situation when moving and when stationary.
4 is a plan view of FIG. 3, showing a use state in which the board is developed.
FIG. 5 is an enlarged front view of the main part of FIG. 1, showing a speed meter test situation and a boarding board folding situation of a large vehicle.
FIG. 6 is a perspective view showing a connection state of one side of a base frame and a boarding plate applied to the present invention.
FIG. 7 is an explanatory diagram showing a situation in which the present invention is installed on an uneven portion of a floor surface.
FIG. 8 is a perspective view showing a main part of a second embodiment of the present invention, showing a connection state of one side of a base frame and a boarding plate.
FIG. 9 is a perspective view showing an essential part of a third embodiment of the present invention, showing a state of connection of a base frame and a boarding plate on one side.
[Explanation of symbols]
5 Auxiliary device 6 Roller 7 Base frame 8 Loading board 9 Frame (vertical frame)
10 Frame (horizontal frame)
31 convex part 32 wheel 42,52 caster

Claims

Multiple possible place the wheels of the test vehicle B - a base frame for rotatably supporting the La, on opposite frame of the base frame, rotate the Nokomi plate capable ride the vehicle wheel in the vertical direction A caster bracket or a support plate that rotatably connects to the frame on both sides of the roller and rotatably supports the caster is provided, and when the caster is landed on the floor surface, the base frame is floated from the floor surface or In the vehicle test auxiliary device that is capable of landing, the caster bracket is connected to the bracket or the support plate so as to be pivotable in the vertical direction, and a handle is provided on the upper end portion of the caster bracket so as to be fitted. The caster bracket can be tilted up and down via the handle tilting operation, and the base frame can be levitated from the floor surface or landed on the floor surface with the caster landing on the floor surface as a fulcrum. for the test of vehicle auxiliary to Location.

The auxiliary device for testing a vehicle according to claim 1 , wherein the base frame can be landed on a floor surface when a wheel is not placed on the roller .