Vacuum cleaner nozzle, has duct emerging at level of soleplate through connection zone, which is delimited by walls that are devoid of sudden break in slope, where radius of curvature of walls is greater than eight millimeters

摘要

The nozzle has ducts emerging at the level of a soleplate (11) of the nozzle in contact with ground, through a connection zone (32) emerging from sucking channels. Walls delimiting the zone are devoid of sudden break in slope such that air is guided along the walls without discontinuity. The radius of curvature of the walls is greater than 8 millimeters on the entire perimeter of the zone.