Autonomous surface cleaning robot for wet and dry cleaning
First Claim
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1. A surface treatment robot comprising:
- a robot body having a forward portion and an aft portion, the forward portion preceding the aft portion as the robot moves in a forward direction over a cleaning surface, the robot having a generally rectangular cross-section;
a differential drive system comprising a right drive wheel and a left drive wheel, each drive wheel rotatable about at least one transverse axis approximately orthogonal to the forward direction;
a supply volume that stores cleaning liquid;
at least one spray nozzle that applies the cleaning liquid on the cleaning surface;
a pump assembly that moves the cleaning liquid from the supply volume to the at least one spray nozzle, the pump assembly having an adjustable pumping frequency; and
a scrubbing module disposed forward of the right and left drive wheels, the scrubbing module comprising a replaceable scrubbing pad.
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Abstract
An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries a first cleaning zone comprising cleaning elements arranged to suction loose particulates up from the cleaning surface and a second cleaning zone comprising cleaning elements arraigned to apply a cleaning fluid onto the surface and to thereafter collect the cleaning fluid up from the surface after it has been used to clean the surface. The robot chassis carries a supply of cleaning fluid and a waste container for storing waste materials collected up from the cleaning surface.
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Citations
19 Claims
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1. A surface treatment robot comprising:
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a robot body having a forward portion and an aft portion, the forward portion preceding the aft portion as the robot moves in a forward direction over a cleaning surface, the robot having a generally rectangular cross-section; a differential drive system comprising a right drive wheel and a left drive wheel, each drive wheel rotatable about at least one transverse axis approximately orthogonal to the forward direction; a supply volume that stores cleaning liquid; at least one spray nozzle that applies the cleaning liquid on the cleaning surface; a pump assembly that moves the cleaning liquid from the supply volume to the at least one spray nozzle, the pump assembly having an adjustable pumping frequency; and a scrubbing module disposed forward of the right and left drive wheels, the scrubbing module comprising a replaceable scrubbing pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification