PROBLEM TO BE SOLVED: To provide a level maintaining apparatus for a mobile crane capable of improving the stability of a traveling body during crane work.SOLUTION: A level maintaining apparatus 1 is for a mobile crane, in which mobile crane includes a traveling body, extendable and contractable outriggers provided right and left and backward and forward of the traveling body to support the traveling body when extended, and a boom mounted to the traveling body with transition from a storage position to a work position allowed. The level maintaining apparatus comprises: a boom position detector 40 for detecting a position of the boom; an inclination detector 50 for detecting an inclination angle and an inclination direction of the traveling body relative to a level; and a controller 60 for causing the outriggers to extend or contract such that the traveling body becomes leveled from an inclination angle when the boom position detector 40 detects that the boom is placed in the work position with the outriggers extended to ground.SELECTED DRAWING: Figure 4
【課題】クレーン作業中の走行体の安定性を高める、移動式クレーンの水平維持装置を提供する。【解決手段】水平維持装置1は、 走行体と、走行体の前後左右に伸縮可能に設けられ、伸長時に走行体を支持するアウトリガーと、走行体に設けられ、格納姿勢から作業姿勢に姿勢変化可能なブームと、を備える移動式クレーンの水平維持装置であって、ブームの姿勢を検出するブーム姿勢検出部40と、走行体の水平に対する傾斜角度及び傾斜方向を検出する傾斜検出部50と、アウトリガーが伸長して接地した状態で、ブームの姿勢が作業姿勢であることをブーム姿勢検出部40が検出した場合に、傾斜角度から走行体が水平となるようにアウトリガーを伸縮させる制御部60と、を備える。【選択図】図4
LEVEL MAINTAINING APPARATUS FOR MOBILE CRANE
移動式クレーンの水平維持装置
2018-07-05
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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