The jib direction (X4) is shifted with respect to the mast direction (Z2) parallel to the hinge axis (Y24). A distance between the hinge axis (Y24) and the lower limit (4.12) is greater than 75% of the height (H4.1) of the first jib section (4.1).
AUTOMATIC UNFOLDING AND FOLDING TOWER CRANE COMPRISING A MAST AND A JIB SHIFTED WITH RESPECT TO THE MAST
2017-06-29
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
European Patent Office | 2020
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