Vacuum cleaner nozzle

Abstract

A vacuum cleaner nozzle has a front edge ( 10 ) and a rear edge ( 11 ), an underside ( 12 ) intended to face a floor or some other substructure to be vacuum-cleaned. The underside ( 12 ) is provided with one front ( 13 ) and two ( 14, 15 ) rear rest surfaces for supporting of the nozzle on the floor or similar, the front rest surface ( 13 ) being positioned centrally along the front edge ( 10 ) and the two rear rest surfaces ( 14, 15 ) being positioned separate from each other and symmetrically along the rear edge ( 11 ). In order to design the nozzle such that it can be used as an all-round nozzle for carpets as well as smooth floors, without comprising any movable part and being able to be produced at low cost and still to give the desired cleaning effect in use, the rest surfaces ( 13, 14, 15 ) comprise lint pickups ( 13′, 14′, 15′ ) having inclined fibres that project from the rest surfaces, arranged such that the fibres of the front rest surface ( 13 ) incline towards the rear edge ( 11 ) while the fibres of the rear rest surfaces ( 14, 15 ) incline towards the front edge ( 10 ), and the nozzle is free from other rest surfaces that might get in contact with a smooth, hard floor.

1 - 12 . (canceled) 
   
   
       13 . A vacuum cleaner nozzle comprising:
 a front edge,   a rear edge,   an underside intended to face a floor or some other substructure to be vacuum-cleaned, and   an upper part provided with a connection for connecting the nozzle to the vacuum-cleaner, which underside is provided with one front and two rear rest surfaces for supporting of the nozzle on the floor or similar, the front rest surface being positioned centrally along the front edge and the two rear rest surfaces being positioned separate from each other and symmetrically along the rear edge, wherein the rest surfaces comprise lint pickups that project from the rest surfaces and wherein the nozzle is free from other rest surfaces that might get in contact with a smooth, hard floor, wherein the front, centrally positioned rest surface and its lint pickup take up about a third of the length of the front edge, while the portions on the side thereof of the front edge form front inlet channels for dust loaded air to be sucked into the vacuum cleaner.   
   
   
       14 . A nozzle according to  claim 13 , wherein the lint pickups have inclined fibres arranged such that the fibres of the front rest surface incline towards the rear edge, while the fibres of the rear rest surfaces incline towards the front edge. 
   
   
       15 . A nozzle according to  claim 13 , wherein the lint pickups are recessed in pockets formed in the rest surfaces. 
   
   
       16 . A nozzle according to  claims 13 , wherein the lint pickups project a distance in the magnitude of 1 to 2 mm from the rest surfaces. 
   
   
       17 . A nozzle according to  claim 13 , wherein the two rear, separately positioned rest surfaces and their lint pickups take up about one third each of the length of the rear edge, and the portion between them of the rear edge forms a centrally positioned rear inlet channel for dust loaded air to be sucked into the vacuum cleaner. 
   
   
       18 . A nozzle according to  claim 17 , wherein the front inlet channels extend somewhat over the front corners of the nozzle. 
   
   
       19 . A nozzle according to  claim 17 , wherein the rest surfaces are furthermore designed such that a rest surface portion that is positioned between a lint pickup and an inlet channel that passes it, inclines away from the lint pickup in a direction towards the inlet channel. 
   
   
       20 . A nozzle according to  claim 17 , wherein the nozzle comprises a bottom plate in which the rest surfaces and the channels are formed, and a top cover connected to the bottom plate, which cover comprises the connection for connecting the nozzle to the vacuum-cleaner, the two front inlet channels each lead to a respective hole through the bottom plate, such that the dust loaded air is sucked into a room that is defined by the cover and the bottom plate, the holes are positioned between respective ends of the central, front rest surface and the respective adjoining rear rest surfaces, and the bottom plate is designed to split the rear inlet channel in two, such that the two branches formed lead to a respective one of the holes. 
   
   
       21 . A nozzle according to  claim 20 , wherein the bottom plate is, at least at one end of each pocket for the associated lint pickup, provided with a recess to facilitate introduction of a tool for loosening and exchanging the lint pickup. 
   
   
       22 . A nozzle according to  claim 20 , wherein the sides of the channels are softly rounded in order to minimize the flow resistance. 
   
   
       23 . A nozzle according to  claim 13 , wherein the front edge is slightly concave in the horizontal direction. 
   
   
       24 . A nozzle according to  claim 23 , wherein the rear edge is slightly convex in the horizontal direction.