A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RAIL AND ROAD DUAL MODE WORK VEHICLE
PROBLEM TO BE SOLVED: To provide a rail and road dual mode work vehicle capable of preventing a work machine or a work tool from being raised while exceeding an upper limit position and coming into contact with an overhead power line.SOLUTION: A rail and road dual mode work vehicle comprising: a lower vehicle body having a plurality of rail wheels and crawler type travel means; and an upper vehicle body having arm means provided with a work machine and turnably mounted on the lower vehicle body, is provided with rail wheel lifting means capable of changing a rail wheel to a higher position and a lower position than the crawler type travel means. Height limiting means capable of mechanically regulating an upper limit position of the work machine and capable of switching a height of the regulating upper limit position is provided between the arm means and the upper vehicle body. The rail and road dual mode work vehicle is provided with lifting position detection means for detecting whether the rail wheel lifting means is present in a lifted position or a lowered position, and according to a signal from the lifting position detection means, when the rail wheel lifting means is present in the lowered position, the height limiting means is constituted so as to be extended in accordance with a lifting quantity of the rail wheel lifting means more than the case when the rail wheel lifting means is present in the lifted position.SELECTED DRAWING: Figure 1
【課題】作業機もしくは作業具が上限位置を越えて上昇して架線に接触してしまうのを防止することができる軌陸両用作業車を実現する。【解決手段】複数の軌道用車輪および履帯式走行手段を有する下部車体と、作業機が設けられたアーム手段を有し下部車体上に旋回可能に搭載された上部車体とを備えた軌陸両用作業車に、軌道用車輪を履帯式走行手段よりも高い位置と低い位置とに変換可能な軌道用車輪昇降手段を設け、アーム手段と上部車体との間に、作業機の上限位置を機械的に規制可能であって、規制する上限位置の高さを切換え可能な高さ制限手段を設け、軌道用車輪昇降手段が上昇位置にあるか下降位置にあるかを検出する昇降位置検出手段を備え、昇降位置検出手段からの信号に基づいて、軌道用車輪昇降手段が下降位置にある場合には、上昇位置にあるときよりも高さ制限手段を、軌道用車輪昇降手段の昇降量に対応して伸長させるように構成した。【選択図】図１
RAIL AND ROAD DUAL MODE WORK VEHICLE
PROBLEM TO BE SOLVED: To provide a rail and road dual mode work vehicle capable of preventing a work machine or a work tool from being raised while exceeding an upper limit position and coming into contact with an overhead power line.SOLUTION: A rail and road dual mode work vehicle comprising: a lower vehicle body having a plurality of rail wheels and crawler type travel means; and an upper vehicle body having arm means provided with a work machine and turnably mounted on the lower vehicle body, is provided with rail wheel lifting means capable of changing a rail wheel to a higher position and a lower position than the crawler type travel means. Height limiting means capable of mechanically regulating an upper limit position of the work machine and capable of switching a height of the regulating upper limit position is provided between the arm means and the upper vehicle body. The rail and road dual mode work vehicle is provided with lifting position detection means for detecting whether the rail wheel lifting means is present in a lifted position or a lowered position, and according to a signal from the lifting position detection means, when the rail wheel lifting means is present in the lowered position, the height limiting means is constituted so as to be extended in accordance with a lifting quantity of the rail wheel lifting means more than the case when the rail wheel lifting means is present in the lifted position.SELECTED DRAWING: Figure 1
【課題】作業機もしくは作業具が上限位置を越えて上昇して架線に接触してしまうのを防止することができる軌陸両用作業車を実現する。【解決手段】複数の軌道用車輪および履帯式走行手段を有する下部車体と、作業機が設けられたアーム手段を有し下部車体上に旋回可能に搭載された上部車体とを備えた軌陸両用作業車に、軌道用車輪を履帯式走行手段よりも高い位置と低い位置とに変換可能な軌道用車輪昇降手段を設け、アーム手段と上部車体との間に、作業機の上限位置を機械的に規制可能であって、規制する上限位置の高さを切換え可能な高さ制限手段を設け、軌道用車輪昇降手段が上昇位置にあるか下降位置にあるかを検出する昇降位置検出手段を備え、昇降位置検出手段からの信号に基づいて、軌道用車輪昇降手段が下降位置にある場合には、上昇位置にあるときよりも高さ制限手段を、軌道用車輪昇降手段の昇降量に対応して伸長させるように構成した。【選択図】図１
RAIL AND ROAD DUAL MODE WORK VEHICLE
軌陸両用作業車
TAKAHASHI HIDETOSHI (author) / SATAKE NOBUAKI (author)
2018-01-11
Patent
Electronic Resource
Japanese
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