PROBLEM TO BE SOLVED: To provide a crane capable of adjusting the position of a counter weight in a state of keeping the length of a guyline constant while suppressing an increase in cost, and a position adjustment method of the counter weight of the crane.SOLUTION: A crane X1 comprises: a mast 41; an elastic member 8 that can extend and contract so as to change a separation distance between a machine body and a counter weight 71; a drive control unit for controlling drive of the mast 41 and the elastic member 8; a mast rising/lowering prohibition unit for transmitting a signal to the drive control unit so as to prohibit the mast 41 from rising and lowering in a state in which an inclination angle of the mast 41 is within a set angle range corresponding to the separation distance; and a mast rising/lowering allowance unit for canceling the prohibition of the rising and lowering of the mast 41 by the drive control unit when operated by the operation unit. The drive control unit raises and lowers the mast 41 so that the counter weight 71 can move in an extending/contracting direction of the elastic member 8 while a guyline 73 is stretched.SELECTED DRAWING: Figure 1
【課題】コストの増大を抑止しつつ、ガイラインの長さを一定に保ったままカウンタウェイトの位置を調整できるクレーン、およびクレーンのカウンタウェイトの位置調整方法を提供する。【解決手段】クレーンX1は、マスト41と、機体とカウンタウェイト71との離間距離を変更するように伸縮可能な伸縮部材8と、マスト41および伸縮部材8の駆動を制御する駆動制御部と、マスト41の傾斜角度が前記離間距離に応じた設定角度範囲に収まった状態でマスト41が起伏することを禁止するように駆動制御部に信号を送るマスト起伏禁止部と、操作部にて操作が行われた場合に、駆動制御部によるマスト41の起伏の禁止を解除するマスト起伏許容部と、を備え、駆動制御部は、ガイライン73が張った状態でカウンタウェイト71が伸縮部材8の伸縮方向に移動可能なようにマスト41を起伏させる。【選択図】図1
CRANE AND POSITION ADJUSTMENT METHOD OF COUNTER WEIGHT OF CRANE
クレーン、およびクレーンのカウンタウェイトの位置調整方法
2017-02-02
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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