Combined nozzle for dust vacuum cleaner

Abstract

Combined nozzle for a dust vacuum-cleaner includes a brush with an interchangeable arrangement at the end of a tube connected to a suction device. The brush has a lower planar face and joint for an arrangement in two different transverse positions with respect to the tube or two different positions longitudinally in the tube extension. In each position, the suction is achieved by an opening in the planar face, or an opening at one of the ends. The joint includes a pivot about at least two axes, such that, when in a position for suction by an end, the brush is oriented so that the lower face and the longitudinal axis of the brush are essentially parallel to the axis of the suction tube.

1 . Combined nozzle for a dust vacuum-cleaner, the nozzle comprising:
 a brush interchangeably arranged at an end of a tube connected to a suction device, said brush having a planar face on a lower side thereof; and   a joint means for arrange said brush in at least two different positions, transversely with respect to said tube or longitudinally in an extension of said tube, in each position, suction being carried out through an opening provided for at a level of said planar face and over a full length of said planar face, or part of same, or through an opening positioned at one of the ends, respectively,   wherein said joint means comprise means for pivoting according to at least two axes so that, when said brush is positioned for use for suction through one end, said brush is oriented so that said planar face as well as a longitudinal axis of said brush are substantially parallel to an axis of said tube.   
   
   
       2 . Combined nozzle according to  claim 1 , wherein said brush has an upper portion shaped, on a side opposite a side or end with said opening, accommodating the tube, when said tube is arranged along an axis of said opening. 
   
   
       3 . Combined nozzle according to  claim 1 , further comprising:
 a spring means restoring said brush into the longitudinal position, in the extension of the tube.   
   
   
       4 . Combined nozzle according to  claim 1 , wherein the joint means are comprised of a hollow spherical joint. 
   
   
       5 . Combined nozzle according to  claim 1 , wherein said joint means comprise a pivotal chamber, into which ends the tube and an opening in communication with either said opening or the opening provided for at the level of the planar face, depending on pivoting of said brush. 
   
   
       6 . Combined nozzle according to  claim 5 , wherein the tube is pivotally mounted on the movable pivotal chamber, according to an axis perpendicular, or substantially perpendicular, to another axis of pivoting of said pivotal chamber. 
   
   
       7 . Combined nozzle according to  claim 6 , wherein the end of the tube closely penetrates said pivotal chamber, depending on pivoting of said brush. 
   
   
       8 . Combined nozzle according to  claim 7 , further comprising:
 an automatic indexing system for said brush in the extension of the tube, the indexing system comprising a connecting rode pivotally articulated on said brush, restored by a spring, and engaging an eccentric resting point support of the movable pivotal chamber.