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Chapter 6
Mechanical Rubbing System
6.1 Structure
1. Motor
2. Bumping Wheel
3. Brush Base
4. Brush bushings
5. Adjustment system
6.2 Description
The washing function of the machine
is obtained by the interaction of the
cleaning solution with the dirt present
on the floor. To facilitate and enhance
this interaction, is used a system of
mechanical rubbing which consists in
a device which rubs on the floor. This
device can be of various nature (pad
or brush), in each case, its function is
to mechanically remove the dirt from
the ground and facilitate the reaction
between the dirt and cleaning solu-
tion.
A direct current electric motor
connected to a case of gear reduction
provides the rotational movement of the
brush coupling flange. To the flange is
coupled the brush (or the pad holder
provided with pad) that rotates together
with the flange. After lowering the base
to the ground, the brush touches and
rubs on the floor providing the desired
mechanical rubbing.
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