The present invention relates to a crane (1) comprising a mast (2),_an elongated boom (3) connected to the mast having a front portion (6) extending on one side of the mast and a rear portion (8) extending on the opposite side of the mast, and the boom (3) is linearly movable relative to the mast such that the length of the front portion and the length of the rear portion is adjustable by moving the boom relative to mast, and a counterweight (12) movably connected to the boom (3). The boom (3) and the counterweight (12) are arranged so that they can be moved independent of each other, and the counterweight and the boom are arranged so that the counterweight can pass the mast and be moved between the front portion (6) and the rear portion (8) independent of the position of the boom (3) with respect to the mast (2).
A CRANE COMPRISING A MOVABLE BOOM AND A MOVABLE COUNTERWEIGHT
KRAN MIT BEWEGLICHEM AUSLEGER UND BEWEGLICHEM GEGENGEWICHT
GRUE COMPRENANT UNE FLÈCHE MOBILE ET UN CONTREPOIDS MOBILE
2021-12-22
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
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