Title:
VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2021/112353
Kind Code:
A1
Abstract:
A vacuum cleaner is disclosed. The vacuum cleaner of the present invention comprises a body and a suction nozzle. The suction nozzle comprises a housing, a drive unit, a rotating brush, and a detachable cover. The drive unit can rotate a first shaft member. A second shaft member is provided at one side of the rotating brush in the axial direction. The first shaft member and the second shaft member form multiple first contact surfaces. The first contact surfaces are arranged spirally about the axis of the rotating brush. The first shaft member axially pushes the second shaft member at the first contact surfaces.
Inventors:
HWANG PHIL JAE (KR)
RYU CHUNG JAE (KR)
KIM CHI WAN (KR)
LEE GYOUNG MIN (KR)
PARK YUN BO (KR)
RYU CHUNG JAE (KR)
KIM CHI WAN (KR)
LEE GYOUNG MIN (KR)
PARK YUN BO (KR)
Application Number:
PCT/KR2020/007126
Publication Date:
June 10, 2021
Filing Date:
June 02, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
A47L9/04; A46B13/00
Foreign References:
| JP2009017900A | 2009-01-29 | |||
| KR101178296B1 | 2012-08-29 | |||
| KR940008351U | 1994-04-18 | |||
| KR20130140337A | 2013-12-24 | |||
| US20180296046A1 | 2018-10-18 | |||
| KR20190080855A | 2019-07-08 |
Other References:
See also references of EP 4070707A4
Attorney, Agent or Firm:
NAM & NAM (KR)
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