(19)
(11) EP 1 836 941 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.10.2009 Bulletin 2009/43

(43) Date of publication A2:
26.09.2007 Bulletin 2007/39

(21) Application number: 07004691.7

(22) Date of filing: 07.03.2007
(51) International Patent Classification (IPC): 
A47L 9/19(2006.01)
 A47L 9/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 14.03.2006 JP 2006068898
17.03.2006 JP 2006073826

(71) Applicant: Toshiba TEC Kabushiki Kaisha
Tokyo 141-8664 (JP)

(72) Inventor:
  • Suzuki, Hitoshi, c/o Int. Prop. Division
    Shinagawa-ku Tokyo 141-8664 (JP)

(74) Representative: Kramer - Barske - Schmidtchen 
European Patent Attorneys Landsberger Strasse 300
80687 München
80687 München (DE)

   


(54) Electric vacuum cleaner


(57) An electric vacuum cleaner, including: a dust separating section (52) to separate a dust sucked from a suction opening with air; a dust-collecting chamber (73) for collecting the dust separated at the dust separating section (52); a light emitting diode (D1) for emitting a light into the dust-collecting chamber (73); a light receiving diode (D2) for receiving the light through the dust-collecting chamber (73); a control device (200) for judging an amount of the dust through the suction opening /or judging whether or not the dust collected in the dust-collecting chamber (73) reached to a predetermined amount based on a light receiving condition of the light receiving device (D2); a display unit (17) for displaying the amount of the dust judged with the judging device and a alarm device (1000) for alarming in response with the judging amount detected by the control device (200).







Search report