Nozzle for a floor cleaning device

Abstract

A nozzle for a floor care appliance for cleaning surfaces. The nozzle includes a gliding sole disposed on a bottom side of the floor nozzle and has a suction mouth opening. A suction duct extends from the opening to a connection piece. A front suction mouth edge and a rear suction mouth edge bound the suction mouth with respect to a pushing direction of the floor nozzle. A rear pivot limit stop associated with the rear suction mouth edge and a front pivot limit stop associated with the rear suction mouth edge are included. The rear suction mouth edge projects beyond a plane of contact of the nozzle with the surface when the rear suction mouth edge engages the front pivot limit stop and when the floor nozzle is in a non-contacting position. The front pivot limit stop limits the pivoting angle of the rear suction mouth edge in a direction toward the front suction mouth edge such that the rear suction mouth edge is in a substantially vertical position with respect to the plane of contact when the rear suction mouth edge engages the front pivot limit stop.

1 - 7 . (canceled) 
     
     
         8 . A nozzle for a floor care appliance for cleaning a surface, the nozzle comprising:
 a gliding sole disposed on a bottom side of the floor nozzle, the gliding sole having a suction mouth opening;   a suction duct extending from the opening to a connection piece;   a front suction mouth edge and a rear suction mouth edge, each bounding the suction mouth opening with respect to a pushing direction of the floor nozzle;   a rear pivot limit stop associated with the rear suction mouth edge; and   a front pivot limit stop associated with the rear suction mouth edge,   wherein the rear suction mouth edge projects beyond a plane of contact of the nozzle with the surface when the rear suction mouth edge engages the front pivot limit stop and the floor nozzle is in a non-contacting position, and   wherein the front pivot limit stop limits the pivoting angle of the rear suction mouth edge in a direction toward the front suction mouth edge such that the rear suction mouth edge is in a substantially vertical position with respect to the plane of contact when the rear suction mouth edge engages the front pivot limit stop.   
     
     
         9 . The floor nozzle as recited in  claim 8 , wherein the rear suction mouth edge is configured such that restoring forces act on the rear suction mouth edge in a direction toward the front suction mouth edge 
     
     
         10 . The floor nozzle as recited in  claim 8 , wherein the rear suction mouth edge is a lower edge of a flexible lip. 
     
     
         11 . The floor nozzle as recited in  claim 9 , wherein the rear suction mouth edge is a lower edge of a flexible lip. 
     
     
         12 . The floor nozzle as recited in  claim 10 , wherein a flexibility of the lip is greater in a region of a pivot axis than in a region of contact with the surface. 
     
     
         13 . The floor nozzle as recited in  claim 11 , wherein a flexibility of the lip is greater in a region of a pivot axis than in a region of contact with the surface. 
     
     
         14 . The floor nozzle as recited in  claim 8  wherein the rear pivot limit stop limits a pivoting angle of the rear suction mouth edge in a direction toward the connection piece to between 45° and 90° with respect to a position perpendicular to the plane of contact of the floor nozzle. 
     
     
         15 . The floor nozzle as recited in  claim 14  wherein the rear pivot limit stop limits the pivoting angle of the rear suction mouth edge to about 70° with respect to the position perpendicular to the plane of contact of the floor nozzle. 
     
     
         16 . The floor nozzle as recited in  claim 9  wherein the rear pivot limit stop limits a pivoting angle of the rear suction mouth edge in a direction toward the connection piece to between 45° and 90° with respect to a position perpendicular to the plane of contact of the floor nozzle. 
     
     
         17 . The floor nozzle as recited in  claim 10  wherein the rear pivot limit stop limits a pivoting angle of the rear suction mouth edge in a direction toward the connection piece to between 45° and 90° with respect to a position perpendicular to the plane of contact of the floor nozzle. 
     
     
         18 . The floor nozzle as recited in  claim 12  wherein the rear pivot limit stop limits a pivoting angle of the rear suction mouth edge in a direction toward the connection piece to between 45° and 90° with respect to a position perpendicular to the plane of contact of the floor nozzle. 
     
     
         19 . The floor nozzle as recited in  claim 8  wherein the front pivot limit stop is disposed at a distance from the plane of contact of the floor nozzle. 
     
     
         20 . The floor nozzle as recited in  claim 9  wherein the front pivot limit stop is disposed at a distance from the plane of contact of the floor nozzle. 
     
     
         21 . The floor nozzle as recited in  claim 10  wherein the front pivot limit stop is disposed at a distance from the plane of contact of the floor nozzle. 
     
     
         22 . The floor nozzle as recited in  claim 12  wherein the front pivot limit stop is disposed at a distance from the plane of contact of the floor nozzle. 
     
     
         23 . The floor nozzle as recited in  claim 14  wherein the front pivot limit stop is disposed at a distance from the plane of contact of the floor nozzle. 
     
     
         24 . The floor nozzle as recited in  claim 15  wherein the front pivot limit stop is disposed at a distance from the plane of contact of the floor nozzle.