Mobile crane for lifting, transporting and positioning of heavy loads has chassis-bearing crane support with jib on crane platform enabling jib to swing round, with part and supports on chassis to align platform

摘要

Mobile crane has chain or tracked chassis (5) bearing a vertical crane support (1) with crane jib (2) on a turning platform (6), enabling the platform to swing round the jib by turning the crane support along its lengthwise axis. The crane platform has a chassis-tight part (10) on its chassis and means of support (11,13,27) which enable the turning platform to be aligned horizontally.