EP 4056088 A1 20220914 - FLOOR CLEANING HEAD
Title (en)
FLOOR CLEANING HEAD
Title (de)
BODENREINIGUNGSKOPF
Title (fr)
TÊTE DE NETTOYAGE DE SOL
Publication
Application
Priority
- CN 202110256523 A 20210309
- GB 202116890 A 20211124
Abstract (en)
A floor cleaning head (13) for a vacuum cleaner (10) comprises a housing (22) having an elongate cavity (56) on its underside (15) and an elongate floor cleaning roller (30) mounted axially in the cavity (50), the roller (30) being adapted to rotate solely by frictional contact with the floor surface during movement of the head across the floor surface being cleaned. A control mechanism (58) inhibits rotation of the roller (30) once the head has moved a certain distance in the forward direction during cleaning. The control mechanism (58) also inhibits rotation of the roller (30) once the head has moved a certain smaller distance in the rearward direction during cleaning. The static roller (30) acts to frictionally wipe and abrade the floor and the limited rotational movements help ensure that different rotational parts of the roller are frictionally engaged on successive strokes of the head, thereby avoiding wear.
IPC 8 full level
A47L 9/00 (2006.01); A47L 9/04 (2006.01); A47L 9/06 (2006.01)
CPC (source: EP)
A47L 9/009 (2013.01); A47L 9/0477 (2013.01); A47L 9/0488 (2013.01); A47L 9/0626 (2013.01); A47L 9/0686 (2013.01)
Citation (search report)
- [XA] EP 1949839 A1 20080730 - SAMSUNG KWANGJU ELECTRONICS CO [KR]
- [XA] EP 0037674 A1 19811014 - DYSON JAMES
- [XA] AU 2008203850 A1 20091210 - SAMSUNG ELECTRONICS CO LTD [KR]
- [XI] GB 1323259 A 19730711 - WESSEL H
- [XA] EP 3367865 A1 20180905 - KONINKLIJKE PHILIPS NV [NL]
- [XI] US 5400467 A 19950328 - HWANG JIN-SUNG [KR]
- [XI] US 5394588 A 19950307 - KWEON HYEOG M [KR], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22160863 A 20220308