Battery powered, riding, floor burnishing machine
First Claim
1. Method for treating a surface comprising:
- providing a surface treating member rotatable by an electric motor;
providing a chassis movable along the surface;
providing a means for movably mounting the surface treating member for movement toward and away from the surface;
providing a means for moving the movably mounting means;
monitoring the current level of the electric motor; and
controlling the moving means in response to the monitored current level of the electric motor for moving the movably mounting means and the surface treating member so that the surface treating member engages the surface with a force so that the current level of the electric motor is within a predetermined range.
2 Assignments
0 Petitions
Accused Products
Abstract
A riding burnishing machine (10) includes a battery pack positioned as low as possible in the chassis (12) between the front and rear wheels (14, 15) and removable in a horizontal movement direction while supported by the bottom by a pallet jack. A steering system includes steering shafts (58, 76) which are rotatable together while allowing relative pivotable movement therebetween and which are rotatably connected to the spindle (38) of the steerable rear wheels (15) through a jack shaft (44). The burnishing head is raised and lowered relative to the floor surface by an electric actuator (104) which pivots a linkage (92) through a connection allowing floating travel. The pressure which the treating member (16) engages the floor surface is controlled in response to the current level of the electric motor (86) which rotates the treating member (16). The current level of the electric motor (86) is measured by monitoring the voltage at the ends of a negative supply lead cable (144) and the temperature of the cable (144).
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Citations
11 Claims
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1. Method for treating a surface comprising:
- providing a surface treating member rotatable by an electric motor;
providing a chassis movable along the surface;
providing a means for movably mounting the surface treating member for movement toward and away from the surface;
providing a means for moving the movably mounting means;
monitoring the current level of the electric motor; and
controlling the moving means in response to the monitored current level of the electric motor for moving the movably mounting means and the surface treating member so that the surface treating member engages the surface with a force so that the current level of the electric motor is within a predetermined range. - View Dependent Claims (2, 3, 4, 5)
- providing a surface treating member rotatable by an electric motor;
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6. Apparatus for treating a surface comprising, in combination:
- a surface treating member rotatable by an electric motor;
a chassis movable along the surface;
means for movably mounting the surface treating member for movement toward and away from the surface;
means for moving the movably mounting means;
means for monitoring the current level of the electric motor; and
means for controlling the moving means in response to the monitored current level of the electric motor for moving the movably mounting means and the surface treating member so that the surface treating member engages the surface with a force so that the current level of the electric motor is within a predetermined range. - View Dependent Claims (7, 8, 9, 10)
- a surface treating member rotatable by an electric motor;
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11. Method for treating a surface comprising:
- providing a surface treating member rotatable by an electric motor;
providing a chassis movable along the surface;
providing a means for movably mounting the surface treating member for movement toward and away from the surface;
providing an electric actuator for moving the movably mounting means;
monitoring the current level of the electric motor; and
actuating the electric actuator in response to the monitored current level of the electric motor for moving the movably mounting means and the surface treating member so that the surface treating member engages the surface with a force so that the current level of the electric motor is within a predetermined range.
- providing a surface treating member rotatable by an electric motor;
Specification