(57) A motor sweeper comprising a frame (10) below which there are provided at least one
rotatable front lateral conical brush (1) able to swing about a vertical axis, a steerable
wheel (2) to the rear thereof connected to steering control means, a rearward-lying
transverse horizontal cylindrical brush, two drive wheels to the rear thereof, and
a rear dirt collection bin, said at least one conical brush being maintained in its
working position by an elastic means (120), in which between the machine steering
unit and the support structure for said at least one conical brush (1) there is interposed
a member (62) which is normally insensitive to the operating position of the steering
control means, but which, when the machine confronts a curve involving a steering
angle exceeding a predetermined value, causes that lateral brush situated on the outside
of the curve to swing inwards.
|
|
