The system has a ventilation unit with distribution ducts (16, 17) arranged at base of air content part (V16). Each duct has an outer sheath (19) elongated and opened along its length such that air evacuated along the sheath is directed towards parts (V16A...

The trolley has braking units including friction shoes (10A, 10B), which are accommodated internally on respective wheels (4A, 4B) to block rotation of the wheels about an axis (X-X). A control unit has levers (16A, 16B) for respective shoes. The levers mo...

The seat assembly comprises two side seats one of which (3) comprises means for locking in position. These means comprise an electromagnetic suction (6,7) comprising an electromagnet (8). The suction is associated with a mechanical locking finger stop (12)...