The object of the invention is a foldable crane that includes a rotatable column (12), to which a lift arm (1) is pivotally mounted through an attachment point (13), an articulated arm (2), in which a telescopic arm (11) can be arranged, wherein the lift arm (1) and the articulated arm (3) are pivotally connected with each other in known ways via attachment point (3), a piston hydraulic cylinder (4) that operates between the lift arm (1) and the articulated arm (2), and a set of levers consisting of a first lever element (5) that has two ends (5a, 5b) and a second lever element (6) that has two ends (6a, 6b). The first lever element (5) and the second lever element (6) are pivotally connected to each other through their first ends (5a) and (6a) in known ways via attachment point (9). The piston hydraulic cylinder (4) is connected to the attachment point (9) with its end (4b), while it is pivotally connected with its end (4a) in known ways with the lift arm (1) via attachment point (7). The first lever element (5) is connected with its end (5b) in known ways with the lift arm (1) via attachment point (8). The second lever element (6) is connected with its end (6b) in known ways with the articulated arm (2) via attachment point (10).
FOLDABLE CRANE
ZUSAMMENLEGBARER KRAN
GRUE PLIABLE
2021-12-15
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |