Abstract: A lifting device for vehicles includes a column forming a frame, extending substantially vertically above a base, and a lifter movable along the column by controlling the rotation of a threaded rod by a driving device and by the movement, along the threaded rod, of a nut secured to a carriage on which the load to be lifted can rest. There is a fall-arresting safety device including a ratchet occupying at least a first unlocked position and a locked position engaging with at least one tooth of a ratchet wheel so as to lock the rotation of the threaded rod. There is a retaining device for the ratchet in the unlocked position and a controller for the return of the ratchet to the locked position.

Abstract: The invention relates to a hoisting device (1), in particular for a vehicle, including a substantially vertical column forming a frame (2) and lifting means (6) movable alongside said column (2) under the action of the control, by adequate driving means (12), to cause a threaded rod (9) to rotate and a nut (13) integral with said movable lifting means (6) on which the load to be lifted is designed capable of resting to move along the latter. In this hoisting device, the threaded rod (9) includes, at its lower end (14), a removable extension ferrule (15).

Abstract: The invention relates to a hoisting device (1), in particular for a vehicle, including a substantially vertical column forming a frame and lifting means movable along said column under the action of the control, by adequate driving means, to cause a threaded rod (2) to rotate and a nut (3) integral with a carriage (4) bearing the load (20) to be lifted to move along the latter. It is characterized in that this nut (3) is a catch nut, which comprises a first bearing nut (5) on which said carriage (4) rests, and a second safety nut (6) coaxial to the preceding one and placed below same, designed capable of receiving and bearing the load formed by said carriage (4) and its load (20) and by said first bearing nut (5) in the event of failure of the latter.