Title:
CLEANER
Document Type and Number:
WIPO Patent Application WO/2018/135752
Kind Code:
A3
Abstract:
A cleaner according to the present invention comprises: a cleaner body; and a suction unit which comprises a nozzle part configured to suction air including foreign substances on a floor surface into the cleaner body, and a brush assembly detachably mounted on the nozzle part, wherein the brush assembly comprises: a frame coupled to the nozzle part and forming an opening part which is open forward and positioned adjacent to the floor surface; a brush rotation rod received inside the frame and rotatably supported by the frame at at least one end thereof; and a variable shutter rotatably mounted in the frame and configured to rotate through a pressing force generated at the time of contacting the floor surface to close a part of the opening part. According to the cleaner, an air suction force can be changed in response to conditions of the floor surface, thus improving cleaning performance.
Inventors:
SUN CHANGHWA (KR)
Application Number:
PCT/KR2017/014327
Publication Date:
September 27, 2018
Filing Date:
December 07, 2017
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
A47L9/04; A47L9/00
Foreign References:
| KR19990073729A | 1999-10-05 | |||
| JP2003525079A | 2003-08-26 | |||
| US20160256024A1 | 2016-09-08 | |||
| KR200150470Y1 | 1999-07-01 | |||
| KR20160116047A | 2016-10-06 |
Other References:
See also references of EP 3571970A4
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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