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AUTONOMOUS CLEANING DEVICE

  • US 20120317745A1
  • Filed: 08/28/2012
  • Published: 12/20/2012
  • Est. Priority Date: 10/25/2010
  • Status: Active Grant
First Claim
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1. An autonomous cleaning device comprising:

  • a main body having an opening;

    a brush unit rotatably provided in the opening of the main body; and

    a blade assembly to guide introduction of dust swept up by the brush unit, wherein the blade assembly comprises;

    a blade extended toward a floor, the blade having a contact portion to contact with the floor; and

    a maintaining portion located behind the contact portion in the direction of travel, the maintaining portion formed of a material different from that of the contact portion.

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