(57) A sweeping machine (1) particularly for walkable surfaces, comprising a supporting
chassis (2), which is provided with wheels (3a, 3b, 3c) for supporting and rolling
on a walkable surface and internally accommodates a unit (8) for collecting trash
(5) from the surface and a unit (9) for transferring the collected trash (5') to an
accumulation chamber (10); the collection unit comprising at least one substantially
cylindrical collection and traction brush (11), which is associated with the chassis
and can rotate about its own longitudinal axis, which is arranged substantially transversely
to the direction of travel of the machine, and motor means adapted to turn the collection
and traction brush (11) in the direction of travel of the machine; the machine further
comprises presser means (15), which act on the collection and traction brush (11)
and are adapted to keep at least one portion thereof in contact with the surface,
the contact between the portion and the surface producing a traction of the machine
for its movement.
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