发明授权
US5607071A Crane, especially a track-bound mobile crane 失效
起重机,特别是轨道移动式起重机

Crane, especially a track-bound mobile crane
摘要:
A crane, particularly a track-bound mobile crane, having a luffing jib located on a vehicle frame so as to be slewable upward and downward around a horizontal axis and rotatable around a vertical axis. In order to transport long and heavy loads in narrow areas, especially during the construction of bridges or tracks, the luffing jib is supported on at least one swivel bearing located on a vehicle frame end and is slewable upward and downward or liftable by a lifting drive arranged between the ends of the vehicle frame.
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