(19)
(11) EP 1 329 185 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.08.2003 Bulletin 2003/34

(43) Date of publication A2:
23.07.2003 Bulletin 2003/30

(21) Application number: 02011833.7

(22) Date of filing: 28.05.2002
(51) International Patent Classification (IPC)7: A47L 5/22
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 18.01.2002 KR 2002003035

(71) Applicant: LG Electronics, Inc.
Seoul 150-010 (KR)

(72) Inventor:
  • Lee, Young Woo
    Seoul 120-191 (KR)

(74) Representative: TER MEER STEINMEISTER & PARTNER GbR 
Patentanwälte, Mauerkircherstrasse 45
81679 München
81679 München (DE)

   


(54) Centifugal blower for vacuum cleaner


(57) Disclosed is an impeller (54) of a centrifugal blower for a vacuum cleaner in which caulking positions (R1 to R4) of each blade (54c) caulked between front and rear covers (54a,54b) are set, taking into consideration design parameters including the length and maximum camber position (MCP) of the blade, so as to disperse the stress concentrated on each caulked portion of the blade (54c), thereby causing a minimum stress to be applied to the caulked portion of the blade (54c), so that the impeller (54) secures a structural stability.






Search report