Patent attributes
A robotic vacuum cleaner having a nozzle inlet arranged in a portion of a housing of the vacuum cleaner. The nozzle inlet has a frame structure forming an opening. The frame structure has a base portion extending substantially in parallel with a surface to be cleaned, the base portion extending at a first level. A leading edge portion has at least two distance members forming there between a channel to the opening. The channel has a delimiting surface extending at a second level substantially in parallel with the first level. The first level is arranged closer to the surface to be cleaned than the second level. Each distance member has a substantially triangular cross section. At least a portion of side surfaces of the distance members extend substantially perpendicularly to the base portion.