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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0835360 (2007-08-07) |
| 등록번호 | US-8387193 (2013-03-05) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 33 인용 특허 : 719 |
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
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.
1. A surface treatment robot comprising: a robot body having forward and rear ends;a differential drive system mounted on the robot body and configured to maneuver the robot over a cleaning surface;at least one drive motor carried by the robot body and driving the differential drive system;a proximi
1. A surface treatment robot comprising: a robot body having forward and rear ends;a differential drive system mounted on the robot body and configured to maneuver the robot over a cleaning surface;at least one drive motor carried by the robot body and driving the differential drive system;a proximity sensor responsive to a potential obstacle forward of the robot, wherein the drive system is configured to alter a heading setting in response to a signal received from the proximity sensor indicating a potential obstacle;a cliff sensor responsive to a potential cliff forward of the robot, wherein the drive system is configured to alter the heading setting in response to a signal received from the cliff sensor indicating a potential cliff;a debris collector housed in the robot body and configured for collecting dry debris from the cleaning surface;a liquid applicator housed in the robot body and configured to dispense a liquid onto the cleaning surface while the robot is moving in a direction of forward travel of the robot and suspend dispersion of the liquid while moving in a reverse direction of forward travel of the robot; anda scrubber housed in the robot body and engaging the cleaning surface, the scrubber comprising a driven circulating web trained about rollers rotatably coupled to the robot body, the web driven to rotate in the direction of forward travel of the robot, thereby aiding forward propulsion of the robot;wherein the treatment robot has a mass of less than about 10 kg, there is between about 1 cm and about 10 cm of cleaning width for every 1 kg of treatment robot mass, and the treatment robot has an average drag force of 30-50% of the thrust provided by the drive system treatment robot. 2. The surface treatment robot of claim 1, further comprising a reservoir cartridge, wherein the reservoir cartridge comprises: a reservoir cartridge body defining a liquid chamber;a fluid level sensor; anda foam blocking wall disposed in the liquid chamber and configured to impede foam from contacting the fluid level sensor. 3. The surface treatment robot of claim 2, wherein the foam blocking wall bisects the liquid chamber, forming two sub-chambers in fluid communication, the fluid level sensor being disposed in one of the two sub-chambers. 4. The surface treatment robot of claim 1, wherein the drive system comprises: right and left drive wheels rotatably mounted on the robot body and spaced offset from a transverse axis defined perpendicular to a forward drive direction of the robot over a cleaning surface;right and left drive motors coupled to the corresponding drive wheels; anda controller in communication with the drive motors and configured to differentially steer the robot and be capable of maneuvering the robot to pivot in place. 5. The surface treatment robot of claim 4, wherein each drive wheel comprises closed cell foam tires having a cell size of between about 20 μm to about 400 μm. 6. The surface treatment robot of claim 4, wherein each drive wheel defines grooves in an outer surface of the wheel which engages the cleaning surface, the grooves have a depth of about 1.5 mm and a width of between about 20 and about 300 microns. 7. The surface treatment robot of claim 6, wherein the grooves of the drive wheel each define a groove cut axis forming an angle of between about 10° to about 50° with a longitudinal axis defined by the drive wheel. 8. The surface treatment robot of claim 6, wherein the grooves of the drive wheel define a diamond-shaped cross hatch pattern at 3.5 mm intervals.
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