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 and a rear end, and a fore-aft axis defined therebetween;
right and left drive modules, each drive module comprisinga cup-shaped wheel having a substantially circular outer diameter,an annular tire having a substantially circular tire outer diameter and an inner diameter, the inner diameter fitting over the outer diameter of the cup-shaped wheel, and a tire thickness corresponding to the difference between the tire outer diameter and the outer diameter of the cup-shaped wheel; and
a scrubbing element disposed along a cleaning width;
wherein the right and left drive modules are disposed aft of the scrubbing element as the robot travels along the cleaning surface in a forward direction and the cleaning robot has a mass of less than about 10 kg, andthe ratio of the tire thickness and the outer diameter of the cup-shaped wheel is in a range of 0.04 to 0.14.
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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
20 Claims
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1. A surface treatment robot comprising:
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a robot body having a forward and a rear end, and a fore-aft axis defined therebetween; right and left drive modules, each drive module comprising a cup-shaped wheel having a substantially circular outer diameter, an annular tire having a substantially circular tire outer diameter and an inner diameter, the inner diameter fitting over the outer diameter of the cup-shaped wheel, and a tire thickness corresponding to the difference between the tire outer diameter and the outer diameter of the cup-shaped wheel; and a scrubbing element disposed along a cleaning width; wherein the right and left drive modules are disposed aft of the scrubbing element as the robot travels along the cleaning surface in a forward direction and the cleaning robot has a mass of less than about 10 kg, and the ratio of the tire thickness and the outer diameter of the cup-shaped wheel is in a range of 0.04 to 0.14. - View Dependent Claims (2, 3)
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4. A surface treatment robot comprising:
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a robot body having a forward and a rear end, and a fore-aft axis defined therebetween; right and left drive modules, each drive module comprising a wheel having a substantially circular outer diameter in the range of 3 cm-20 cm, an annular tire having a substantially circular outer diameter and an inner diameter, the inner diameter fitting over the outer diameter of the wheel, and a tire thickness corresponding to the difference between the tire outer diameter and the outer diameter of the wheel, the tire thickness being in the range of 1½
mm to 5 mm; anda scrubbing element disposed along a cleaning width; wherein the right and left drive modules are disposed aft of the scrubbing element as the robot travels along the cleaning surface in a forward direction and the cleaning robot has a mass of less than about 10 kg and the ratio of the tire thickness and the outer diameter of the wheel is in a range of 0.04 to 0.14. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20)
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18. A surface treatment robot comprising:
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a robot body having a forward and a rear end, and a fore-aft axis defined therebetween; right and left drive modules, each drive module comprising a wheel having a substantially circular outer diameter, an annular tire having a substantially circular tire outer diameter and an inner diameter, the inner diameter fitting over the outer diameter of the wheel, and the annular tire having a Shore hardness less than the wheel and a tire thickness corresponding to the difference between the tire outer diameter and the outer diameter of the wheel; and a scrubbing element disposed along a cleaning width; wherein the right and left drive modules are disposed aft of the scrubbing element as the robot travels along the cleaning surface in a forward direction and the cleaning robot has a mass of less than about 10 kg, and the ratio of the tire thickness and the outer diameter of the wheel is in a range of 0.04 to 0.14. - View Dependent Claims (19)
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Specification