VACUUM CLEANER NOZZLE
Vacuum cleaner nozzle (N), comprising an air inlet area (AIA) having a front- end boundary (FEB), the front-end boundary (FEB) having a predetermined number of front openings (FO), and front guide elements (FGE) having a surface at an angle to the front-end boundary (FEB) for guiding dirt towards the front openings (FO), openings left by the front guide elements being aligned with the front openings (FO), a width of the openings left by the front guide elements (FGE) not exceeding 300% of a width of the front openings (FO). The front-end boundary (FEB) preferably has between 4 and 6 front openings (FO). An aperture of the front openings (FO) is preferably between 5×5 mm 2 and 7×7 mm 2 .
1 . Vacuum cleaner nozzle, comprising:
an air inlet area having a front-end boundary, the front-end boundary having a predetermined number of front openings; and
front guide elements having a surface at an angle to the front-end boundary for guiding dirt towards the front openings, openings left by the front guide elements being aligned with the front openings, a width of the openings left by the front guide elements not exceeding 300% of a width of the front openings.
2 . Vacuum cleaner nozzle as claimed in claim 1 , wherein the front-end boundary has between 4 and 6 front openings, and wherein optionally an aperture of the front openings is between 5×5 mm 2 and 7×7 mm 2 .
3 . Vacuum cleaner nozzle as claimed in claim 1 , wherein the nozzle is supported by the front-end boundary and wheels at a rear end of the nozzle, the front-end boundary being a brush strip.
4 . Vacuum cleaner nozzle as claimed in claim 1 , wherein the nozzle is supported by the front-end boundary at a front of the nozzle, and by wheels at a rear end of the nozzle.
5 . Vacuum cleaner nozzle as claimed in claim 1 , wherein the front-end boundary is a brush strip.
6 . Vacuum cleaner nozzle as claimed in claim 1 , wherein the front guide elements are flexible.
7 . Vacuum cleaner nozzle as claimed in claim 1 , wherein the front guide elements are configured to reach to a surface to be cleaned in use of the nozzle on such a surface, for wiping dirt towards the front openings.
8 . Vacuum cleaner nozzle as claimed in claim 1 , wherein
the air inlet area has a rear-end boundary having a predetermined number of rear openings;
the nozzle further comprising rear guide elements having a surface at an angle to the rear-end boundary for guiding dirt towards the rear openings, openings left by the rear guide elements being aligned with the rear openings, a width of the openings left by the rear guide elements not exceeding 300% of a width of the rear openings.
9 . Vacuum cleaner nozzle as claimed in claim 8 , wherein the rear-end boundary has between 4 and 6 rear openings, and wherein optionally an aperture of the rear openings is between 5×5 mm 2 and 7×7 mm 2 .
10 . Vacuum cleaner nozzle as claimed in claim 8 , wherein the rear-end boundary is formed by a flexible strip.
11 . Vacuum cleaner provided with a vacuum cleaner nozzle as claimed in claim 1 , a suction generator for generating an airflow through the nozzle, and a dirt separation unit for separating dirt from the airflow.
12 . Vacuum cleaner nozzle, comprising:
an air inlet area having a front-end boundary, the front-end boundary having a predetermined number of front openings; and
flexible front guide elements having a surface at an angle to the front-end boundary for guiding dirt towards the front openings, openings left by the front guide elements being aligned with the front openings,
wherein both the front-end boundary and the front guide elements are configured to reach to a surface to be cleaned in use of the nozzle on such a surface.
13 . Vacuum cleaner nozzle as claimed in claim 12 , wherein the nozzle is supported by the front-end boundary at a front of the nozzle, and by wheels at a rear end of the nozzle.
14 . Vacuum cleaner nozzle as claimed in claim 12 , wherein the front-end boundary is a brush strip.
15 . Vacuum cleaner provided with a vacuum cleaner nozzle as claimed in claim 12 , a suction generator for generating an airflow through the nozzle, and a dirt separation unit for separating dirt from the airflow.