Wheelchairs equipped with a crane, cranes, scaffolding and handling equipment comprising electrically activated extensible structures of articulated trellis, providing large extension relative to retracted length and handling cantilever loads. Crane stabilizers combining the additional functions of wheel axle, crane leveller, vehicle suspension and carrier of counterweight. Electric wheels acting as crane turntable. Electric wheels independently steered with angular actuators and integrated with an assembly of spring suspension, of shock absorber that can be locked to insure crane steadfastness and of linear actuator for levelling. Wheelchair seats with pro file varied by the combination of an electrical linear actuator adjusting the angle of the backrest and the motorized extension of the main frame of the vehicle. Seat covers framed with pressurized tubes made of composite films acting as structural elements, said seat covers also used as mattress and equipped with a removable chamber pot. Fixtures for integration of modules.
