Brush with stapled tufts

Abstract

A bristle brush has a head with a multiplicity of closely spaced recesses in one surface thereof and in which are disposed bristle tufts of U-shaped configuration which extend outwardly thereof. The tufts are comprised of multiple bristles and have a bight portion disposed adjacent the bottom of the recesses and vertically extending leg portions. Staples are disposed between the leg portions of the tufts and pressing the bight portions downwardly in the recesses. The staples have a body portion of generally rectangular cross section and of greater length than the diameter of the recesses. A multiplicity of ribs are provided on at least one side surface and extend transversely thereof. The ribs are spaced apart in the vertical direction a distance at least three times the width of the ribs, and the ribs are of substantially lesser height than the thickness of the body portion. At least some of the ribs are embedded in the material of the head about the recesses.

1 . A bristle brush comprising: 
 (a) a head having a multiplicity of closely spaced recesses in one surface thereof;    (b) bristle tufts of U-shaped configuration disposed in said recesses and extending outwardly thereof, each of said tufts being comprised of multiple bristles having a bight portion disposed adjacent the bottom of the recesses and vertically extending leg portions; and    (c) staples disposed between the leg portions of the tufts and pressing said bight portions downwardly in said recesses, said staples having a body portion of generally rectangular cross section of greater length than the diameter of said recesses and having a multiplicity of ribs on at least one side surface which extend transversely thereof, said ribs being spaced apart in the vertical direction a distance at least three times the width of said ribs, said ribs being of substantially lesser height than the thickness of said body portion, at least some of said ribs being embedded in the material of said head about said recesses.    
   
   
       2 . The bristle brush in accordance with  claim 1  wherein said ribs are provided on both side surfaces of said staples.  
   
   
       3 . The bristle brush in accordance with  claim 1  wherein said ribs are of generally arcuate cross section.  
   
   
       4 . The bristle brush in accordance with  claim 3  wherein said arcuate cross section of said ribs is semicylindrical.  
   
   
       5 . The bristle brush in accordance with  claim 1  wherein said recesses are of circular cross section.  
   
   
       6 . A bristle brush comprising: 
 (a) a head having a multiplicity of closely spaced circular recesses in one surface thereof;    (b) bristle tufts of U-shaped configuration disposed in said recesses and extending outwardly thereof, each of said tufts being comprised of multiple bristles having a bight portion disposed adjacent the bottom of the recesses and vertically extending leg portions; and    (c) staples disposed between the leg portions of the tufts and pressing said bight portions downwardly in said recesses, said staples having a body portion of generally rectangular cross section and of greater length than the diameter of said recesses and having a multiplicity of ribs of generally arcuate cross section which extend transversely thereof on both side surfaces thereof, said ribs being spaced apart in the vertical direction a distance at least three times the width of said ribs, said ribs being of substantially lesser height than the thickness of said body portion, at least some of said ribs being embedded in the material of said head about said recesses.    
   
   
       7 . In a method for making a bristle brush, the steps comprising: 
 (a) forming a brush head with a multiplicity of closely spaced recesses in one surface thereof;    (b) inserting bristle tufts of a U-shaped configuration into said recesses, said tufts each being comprised of multiple bristles having a bight portion and vertically extending leg portions; and    (c) driving staples between said tuft leg portions against said bight portions to press said bight portions of said tufts against the bottom of said recesses, said staples having a body portion of generally rectangular cross section and of greater length than the diameter of said recesses and having a multiplicity of ribs extending transversely of at least one side surface thereof, said ribs being spaced apart in the vertical direction a distance at least three times the width of said ribs, said ribs being of substantially lesser height than the thickness of said body portion, at least some of said ribs being embedded in the material of said head about said recesses.    
   
   
       8 . The method for making bristle brushes in accordance with  claim 7  wherein said tufts and staples are assembled prior to insertion into said recesses.  
   
   
       9 . The method for making bristle brushes in accordance with  claim 7  wherein said ribs are provided on both side surfaces of said staples.  
   
   
       10 . The method for making bristle brushes in accordance with  claim 7  wherein said ribs are of generally arcuate cross section.  
   
   
       11 . The method for making bristle brushes in accordance with  claim 10  wherein said arcuate cross section of said ribs is semicylindrical.  
   
   
       12 . The method for making bristle brushes in accordance with  claim 7  wherein said recesses are of circular cross section.