Drive device (1), to be used in an installation (300) with a first rolling group (3) comprising a tubular winding/unwinding shaft (4) for a rolling element (5) and with at least one second rolling group (30) comprising a further tubular winding/unwinding shaft (31) for a further rolling element (32), said device comprising:
- a casing (28), preferably tubular in shape, which is configured to be removably inserted inside said tubular shaft (4) of said first rolling group (3),
- a single motor (18) which is housed inside said casing (28),
- at least one motorized output member (71) of said motor (18), said at least one motorized output member (71) is entirely housed inside the casing (28) and is actuated in rotation by said motor (18),
- at least one first drive module (80) which is housed inside said casing (28) and which is configured to transfer the rotation of said motorized output member (71) of the motor (18) to a first motorized output member (82) coming out of the casing (28) of the device (1),
- at least one second drive module (81) which is housed inside said casing (28) and which is configured to transfer the rotation of said at least one motorized output member (71) of the motor (18) to a second driving element motorized output (29) which emerges from the casing (28) of the device (1),
and characterized by the fact that it also includes:
- a switching mechanism (70) which is housed within said casing (28) and which is configured so as to assume at least one condition in which said motorized output member (71) is engaged and mechanically interacts with only one of said first drive module (80) and said second drive module (81), thus causing rotation of only the tubular shaft (4) or only of the further tubular shaft (31).