Lifting and steering device for a steering wheel of a vehicle

In a lifting and steering device for a steering wheel of a vehicle comprising a fixed tubular body which extends substantially vertically and which has one closed upper end, a second tube disposed coaxially inside said tubular body for sliding therein and projecting beyond its lower end, a wheel support fixed rigidly to the lower end of said second tube, a shaft which is mounted for rotation in the upper closed end of said main tubular body and which extends axially inside this latter and the second tube, first coupling means for coupling the upper end of said shaft to a steering control of the vehicle, a second coupling means for coupling said second tube to said shaft so as to interlock them for rotation while allowing axial movement of the second tube with respect to the shaft and a hydraulic actuating cylinder for moving said second tube axially with respect to said shaft, said hydraulic actuator is disposed inside said second tube and one of the two elements of said hydraulic actuator, namely its cylinder or its piston rod is coupled to said second tube whereas the other element of the hydraulic actuator is connected to said shaft.