US 11,896,194 B2
Vacuum cleaner
Ingyu Yang, Seoul (KR); Moohyun Ko, Seoul (KR); Jungwan Ryu, Seoul (KR); and Daeho Chang, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Sep. 3, 2020, as Appl. No. 17/011,242.
Application 17/011,242 is a division of application No. 15/956,390, filed on Apr. 18, 2018, granted, now 10,925,454.
Claims priority of application No. 10-2017-0051240 (KR), filed on Apr. 20, 2017; and application No. 10-2017-0096481 (KR), filed on Jul. 28, 2017.
Prior Publication US 2020/0397203 A1, Dec. 24, 2020
Int. Cl. H05F 1/00 (2006.01); A47L 9/04 (2006.01); A47L 9/24 (2006.01); A47L 5/26 (2006.01); A47L 9/00 (2006.01); A47L 9/28 (2006.01)
CPC A47L 9/2889 (2013.01) [A47L 5/26 (2013.01); A47L 9/0081 (2013.01); A47L 9/0411 (2013.01); A47L 9/0427 (2013.01); A47L 9/0455 (2013.01); A47L 9/0477 (2013.01); A47L 9/242 (2013.01); H05F 1/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vacuum cleaner, comprising:
a cleaner body; and
a suction nozzle connected to the cleaner body,
wherein the suction nozzle comprises:
a housing defining an opening at a front portion of the housing,
a rotary cleaning unit located inside of the housing and configured to rotate relative to the housing, at least a portion of the rotary cleaning unit being exposed through the opening of the housing, and
a driving unit coupled to the housing, the driving unit comprising (i) a motor located at a side of the rotary cleaning unit and (ii) a gear portion configured to transmit power of the motor to the rotary cleaning unit,
wherein the rotary cleaning unit comprises:
a nozzle body rotatably coupled to an inside of the housing, the nozzle body having a cylindrical shape,
a protrusion that protrudes from an inner circumferential surface of the nozzle body, the protrusion having a surface that is oriented in a circumferential direction of the nozzle body, and
a plurality of fiber filaments and a plurality of metal filaments disposed on an outer circumferential surface of the nozzle body,
wherein the surface of the protrusion includes:
(i) a first surface that is configured to engage with the driving unit by rotation of the driving unit to rotate the rotary cleaning unit and (ii) a second surface that is opposite to the first surface, the first surface and the second surface being adjacent to each other, and
wherein a circumferential distance of the inner circumferential surface of the nozzle body between the first surface and the second surface is longer than a circumferential distance of the driving unit disposed between the first surface and the second surface such that the driving unit is configured to rotate along the inner circumferential surface of the nozzle body to engage with the first surface.