Lifting Device

A lifting system (1) for mounting on a loading surface of a vehicle (3), comprising at least one first lifting arm system (4) on one side of the loading surface in the transverse direction of the vehicle (3) and at least one second lifting arm system (5) on the other side of the loading surface in the transverse direction of the vehicle (3), which lifting arm system (4, 5) each comprises at least one foundation (6), comprising at least one first foundation part (7) and at least one second foundation part (8), with which respective lifting arm system (4, 5) is connected to the vehicle (3) and that the lifting arm systems (4, 5) each comprise at least one lifting arm (9) and at least one operating mechanism (15) which is operated with at least one actuator (27) and that the lifting system (1) comprises at least one lifting boom (13) which extends between the lifting arm (9) in the first lifting arm system (4) and the lifting arm (9) in the second lifting arm system (5) characterized in that the operating mechanism (15) comprises of at least one first operating arm (16), which at one end, or close proximity, is pivotally connected one to the second foundation part (8) and that the first operating arm (16) at its other end, or the end of the end is connected to the lifting arm (9) via at least one arm link (22), or the like, and that the operating arm (16) and the arm link (22) are each pivotally connected to each other to the respective lifting arm (9), and that the operating mechanism (15) further comprises at least one operating link (25) which is pivotally connected at one end to the operating arm (16) and that at its other end is connected free end via a shaft (35) to the actuator (27) and that the movement of the shaft (35) during operation of the actuator (27) is controlled by at least one guide device (32).