US 12,478,233 B2
Nozzle part and robot cleaner including same
Changhwa Sun, Seoul (KR); Seungyeop Lee, Seoul (KR); Sangchul Lee, Seoul (KR); and Jungmin Ko, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/017,247
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 27, 2020, PCT No. PCT/KR2020/017082
§ 371(c)(1), (2) Date Jan. 20, 2023,
PCT Pub. No. WO2022/019395, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 10-2020-0091870 (KR), filed on Jul. 23, 2020.
Prior Publication US 2023/0292968 A1, Sep. 21, 2023
Int. Cl. A47L 9/04 (2006.01); B08B 1/40 (2024.01)
CPC A47L 9/0477 (2013.01) [A47L 9/0433 (2013.01); A47L 9/0466 (2013.01); B08B 1/40 (2024.01); A47L 2201/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A nozzle assembly, comprising:
a frame;
a roller rotatably coupled to the frame to extend in an extension direction; and
a removal assembly located adjacent to the roller, and rotatably coupled to the frame with respect to the roller,
wherein the removal assembly comprises:
an extension wall extending along the extension direction of the roller, and located adjacent to an outer circumference of the roller to partially cover the outer circumference of the roller; and
a support part located at an end of the extension wall, and rotatably coupled to the frame
wherein the support part defines a hollow, and the roller passes therethrough, and an inner circumference of the support frame surrounding the hollow has a circular cross section,
wherein the nozzle assembly further comprises:
a main gear coupled to the roller to rotate together with the roller; and
a sub-gear coupled to the main gear, and
wherein the removal assembly further comprises:
teeth positioned on the inner circumference of the support part and coupled to the sub-gear.