US 12,408,802 B2
Robot cleaner
Seungjin Lee, Seoul (KR); and Sangik Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/017,338
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 9, 2020, PCT No. PCT/KR2020/017952
§ 371(c)(1), (2) Date Jan. 20, 2023,
PCT Pub. No. WO2022/019405, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 10-2020-0090970 (KR), filed on Jul. 22, 2020.
Prior Publication US 2023/0320547 A1, Oct. 12, 2023
Int. Cl. A47L 9/00 (2006.01); A47L 9/28 (2006.01); B60B 19/00 (2006.01); B60C 11/13 (2006.01); B60K 7/00 (2006.01)
CPC A47L 9/009 (2013.01) [A47L 9/2852 (2013.01); B60B 19/00 (2013.01); B60K 7/0007 (2013.01); A47L 2201/04 (2013.01); B60B 2200/49 (2013.01); B60C 2011/1361 (2013.01); B60K 2007/0092 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A robot cleaner comprising:
a main body for forming an exterior of the robot cleaner;
a wheel cover detachably provided on the main body;
a driving module movably coupled to the wheel cover; and
a wheel coupled to the driving module and rotated by receiving a driving force from the driving module,
wherein the wheel includes:
a wheel body coupled to the driving module and forming an appearance of the wheel;
a plurality of treads arranged along a circumferential face of the wheel body and spaced apart from each other; and
a plurality of ribs respectively disposed between the treads and protruding radially outward of the wheel,
wherein a rib of the plurality of ribs includes a central portion and wing portions positioned on both sides of the central portion in a width direction of the wheel body,
wherein a wing portion of the wing portions is thicker than the central portion, and
wherein, with respect to the width direction of the wheel body, a first spacing between an edge portion of an adjacent one of the plurality of treads and one of the wing portions is greater than a second spacing between a center of the adjacent one of the plurality of treads and the central portion.