Aerial work platform

An aerial work platform comprising a people-holding cage (8);

• and a lifting unit (9) for lifting the cage (8);
• the lifting unit (9) comprising a telescopic arm (10) comprising, in turn, a first section bar (13), a second section bar (14) fitted inside the first section bar (13) and movable between a retracted position and an extracted position, a third section bar (15) fitted inside the second section bar (14) and movable between a retracted position and an extracted position, a fourth section bar (16) fitted inside the third section bar (15) and movable between a retracted position and an extracted position, an actuator cylinder (19) fitted inside the telescopic arm (10) to move the second section bar (14) between its extracted and retracted positions, a first rope operating system (20, 21) fitted inside the telescopic arm (10) to move the third section bar (15) between its extracted and retracted positions, a second rope operating system (22, 23) fitted inside the telescopic arm (10) to move the fourth section bar (16) between its extracted and retracted positions, and at least one pipe (33) to feed an operating fluid along the telescopic arm (10);
• the pipe (33) comprising a first flexible segment (36) to feed the operating fluid from the first section bar (13) to the third section bar (15) and a second flexible segment (34) to feed the operating fluid from the third section bar (15) to the fourth section bar (16);
• and characterized in that the first flexible segment (36) is fitted inside the telescopic arm (10), extends inside a hollow space defined between the first section bar (13) and the second section bar (14) and projects into the second section bar (14) to be connected to the third section bar (15), and in that the second flexible segment (34) is fitted inside the telescopic arm (10) and extends inside said third and fourth section bars (15, 16).