A lifting unit includes a jib foot forming a proximal part of a jib in a service configuration, a counter jib supporting a balancing ballast, a securing part between the jib foot and the counter jib to secure the lifting unit to a mast, and a cylinder connected to the jib foot such that the jib foot is movable between a lowered position and a lifted position. A second cylinder is connected to the securing part.
UNITÉ DE RELEVAGE ET GRUE À FLÈCHE RELEVABLE COMPRENANT UNE TELLE UNITÉ DE RELEVAGE
HEBEEINHEIT UND KRAN MIT EINEM ANHEBBAREM AUSLEGER MIT EINER SOLCHEN HEBEEINHEIT
LIFTING UNIT, AND CRANE WITH A LIFTING JIB COMPRISING SUCH A LIFTING UNIT
2020-04-15
Patent
Electronic Resource
French
IPC: | B66C Krane , CRANES |
European Patent Office | 2017
|European Patent Office | 2017
|PROCEDE DE SECURISATION D’UNE GRUE A FLECHE RELEVABLE ET GRUE ASSOCIEE
European Patent Office | 2019
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