Robotic vacuum cleaner

  • US 10,499,778 B2
  • Filed: 09/08/2014
  • Issued: 12/10/2019
  • Est. Priority Date: 09/08/2014
  • Status: Active Grant
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First Claim
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1. A robotic vacuum cleaner comprising:

  • a housing;

    a drive arrangement being configured to drive the vacuum cleaner along a surface to be cleaned;

    a vacuum producing unit;

    a debris receptacle; and

    a nozzle inlet arranged in a portion of the housing facing the surface to be cleaned, the nozzle inlet comprising a frame structure having;

    an opening in fluid communication with the debris receptacle and the vacuum producing unit;

    a leading edge portion bordering on a first side of the opening;

    a trailing edge portion bordering on a second side of the opening, the second side being opposite the first side;

    a base portion extending substantially in parallel with the surface to be cleaned, the base portion extending at a first level;

    at least two distance members located on the leading edge portion and forming there between a channel to the opening, the channel having a delimiting surface extending at a second level substantially in parallel with the first level, the first level being arranged closer to the surface to be cleaned than the second level; and

    at least two cross braces each extending straight along the first level from a first end to a second end,wherein each distance member has a substantially triangular cross section extending substantially in parallel with the first level, the distance member extending between the first level and the second level with a top of the substantially triangular cross section facing outwardly from the opening and a base of the substantially triangular cross section extending in parallel with the opening,wherein the first end of each the at least two cross braces connects to the base of the substantially triangular cross section of a respective one of the at least two distance members, and the second end of each the at least two cross braces connects to the trailing edge portion of the frame structure,wherein side surfaces of the distance member extend substantially from the top to the base of the substantially triangular cross section, at least a portion of the side surfaces extending substantially perpendicularly to the base portion,wherein the channel is formed between and outside of the substantially triangular cross sections of the at least two distance members, andwherein one of the side surfaces of a first of the at least two distance members and one thereto opposing side surface of a second of the at least two distance members form a funnel to direct debris through the channel towards the opening.

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