US 12,433,467 B2
Two in one mobile cleaning robot
Michael G. Sack, Westford, MA (US); Erik Edward Steltz, Melrose, MA (US); Russell Walter Morin, Burlington, MA (US); Victor Puksta, Ayer, MA (US); Timothy R. Ohm, Grover Beach, CA (US); Brian Cleve Benson, Jr., Chelmsford, MA (US); Peter J. Lydon, Peabody, MA (US); Timothy James Haughton, Newton, MA (US); and Fangzheng Guo, Arlington, MA (US)
Assigned to iRobot Corporation, Bedford, MA (US)
Filed by iRobot Corporation, Bedford, MA (US)
Filed on Jul. 29, 2021, as Appl. No. 17/388,293.
Claims priority of provisional application 63/088,544, filed on Oct. 7, 2020.
Prior Publication US 2022/0104677 A1, Apr. 7, 2022
Int. Cl. A47L 11/40 (2006.01); A47L 11/30 (2006.01)
CPC A47L 11/4069 (2013.01) [A47L 11/305 (2013.01); A47L 11/4011 (2013.01); A47L 11/4038 (2013.01); A47L 2201/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A mobile cleaning robot comprising:
a body;
a pad assembly connected to the body and movable relative thereto, the pad assembly comprising:
a pad tray configured to support a cleaning pad engageable with a floor surface;
one or more arms respectively connected to the pad tray; and
a drive belt or chain connected to an arm of the one or more arms; and
a pad drive system connected to the body and connected to the one or more arms, the pad drive system operable to move the pad assembly relative to the body between a stored position located above a top surface of the body and a cleaning position located at least partially below a bottom surface of the body, the pad drive system comprising:
a pulley or sprocket connected to the body and rotatable relative thereto, the pulley or sprocket engaged with the drive belt or chain and operable to drive the belt or chain to move the arm; and
a belt or chain guide connected to the body and defining at least a portion of a belt or chain track that at least partially surrounds at least a portion of the drive belt or chain, the belt or chain guide defining an arm track supporting at least a portion of the arm of the one or more arms at least partially within the arm track, the arm track configured to guide movement of the arm along the arm track to guide movement of the pad assembly between the stored position and the cleaning position.