Brush for apparatus for cleaning surfaces immersed in a liquid

Abstract

The invention concerns a brush ( 16 ) adapted to be rotated around an axis ( 13 ) for apparatus for cleaning a surface immersed in a liquid. The brush ( 16 ) comprises at least two brush ( 16 ) surfaces ( 15 ) of different mechanical characteristics, arranged in different angular positions of the brush ( 16 ) around said axis ( 13 ).

1 . Brush adapted to be rotated around an axis for an apparatus for cleaning a surface immersed in a liquid,
 wherein said brush comprises at least two brush surfaces of different mechanical characteristics, arranged in different angular positions of the brush around said axis.   
     
     
         2 . Brush according to  claim 1 , wherein the brush surfaces, that are joined together beforehand, and form a windable strip which has a length “L,” suitable for covering a rotary shaft of predetermined diameter “D” oriented along the axis, when this windable strip is wound Onto the rotary shaft by assembly means. 
     
     
         3 . Brush according to  claim 2 , wherein the assembly means are of tenon/mortise type. 
     
     
         4 . Brush according to  claim 1 , wherein the brush surfaces are rectangular strips. 
     
     
         5 . Brush according to  claim 4 , wherein the rectangular strips extend along the axis of the rotary shaft carrying said brush. 
     
     
         6 . Brush according to  claim 4 , wherein the rectangular strips have the same width. 
     
     
         7 . Brush according to  claim 4 , wherein at least two rectangular strips have different widths. 
     
     
         8 . Brush according to  claim 1 , wherein at least two brush surfaces have different hardnesses. 
     
     
         9 . Brush according to  claim 1 , having at least one PVC brush surface and at least one elastomer brush surface. 
     
     
         10 . Brush according to  claim 1 , having at least one PVC brush surface and at least one bristle brush. 
     
     
         11 . Brush according to  claim 2 , wherein the assembly means that assemble two ends of lengths L′ of the windable strip other than the lengths L are reversible. 
     
     
         12 . Tubular brush according to  claim 1 , which is adapted to be inserted over the rotary shaft adapted to carry said brush ( 16 ). 
     
     
         13 . Swimming pool cleaning apparatus including a brush according to  claim 1 . 
     
     
         14 . Method for manufacturing a brush for an apparatus for cleaning a surface immersed in a liquid according to  claim 1 , including the steps of:
 assembling brush surfaces that form a windable strip,   assemble ends of lengths L′ of the windable strip other than the lengths L so as to form a tube by way of assembly means.   
     
     
         15 . Method for manufacturing a brush according to  claim 11 , having a step prior to the assembling of the ends of lengths L′ of the windable strip, when the assembly means that join said ends are reversible, said prior step consisting in placing the windable strip around the rotary shaft such that the lengths L are wound around said rotary shaft.