Title:
CLEANER
Document Type and Number:
WIPO Patent Application WO/2023/106812
Kind Code:
A1
Abstract:
The present invention relates to a cleaner comprising an anti-rotation assembly for selectively holding a first rotating member configured to rotate a body around a first rotational axis and a second rotating member configured to rotate the body around a second rotational axis. The anti-rotation assembly comprises an engaging groove formed on the first rotating member and a holding member rotatably coupled to the second rotating member so as to extend in the gravitational direction. When the angle between the second rotational axis and the ground is a first angle, at least a part of the holding member is inserted into the engaging groove. When the angle between the second rotational axis and the ground is a second angle, the holding member is not inserted into the engaging groove. The holding member extends in the gravitational direction so as to rotate freely. When the angle between the second rotational axis and the ground is a first angle larger than a predetermined angle, the holding member engages with the engaging groove and prevents rolling such that yawing facilitates manipulation of the cleaner. When the angle between the second rotational axis and the ground is a second angle smaller than the predetermined angle, the holding member neither is inserted into the engaging groove nor engages therewith. Accordingly, rolling is prioritized over yawing such that yawing is suppressed to the largest extent, thereby securing straightforwardness of the cleaner.
Inventors:
LEE SANGCHUL (KR)
Application Number:
PCT/KR2022/019757
Publication Date:
June 15, 2023
Filing Date:
December 07, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
A47L9/24; A47L5/24
Foreign References:
| US20180132681A1 | 2018-05-17 | |||
| KR20120032091A | 2012-04-05 | |||
| US20060080803A1 | 2006-04-20 | |||
| KR100768860B1 | 2007-10-22 | |||
| JP2015154869A | 2015-08-27 |
Attorney, Agent or Firm:
HONESTY & JR PARTNERS INTELLECTUAL PROPERTY LAW GROUP (KR)
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