Brush with improved application and spreading

Abstract

The invention relates to a brush including: a handle ( 400 ), a ferrule ( 300 )/receptacle ( 100 ) assembly joined to the handle ( 400 ), a layer of glue ( 112 ) inside the ferrule/receptacle assembly, and a homogeneous tuft of fibers ( 200 ) which has no built-in spacer, whose first end inside the ferrule ( 300 )/receptacle ( 100 ) assembly is embedded in the layer of glue ( 112 ) and whose free second end emerges from the ferrule ( 300 )/receptacle ( 100 ) assembly, in which brush the tuft of fibers ( 200 ) has an at least substantially homogeneous density throughout its length from its end embedded in the layer of glue ( 112 ) to its free second end, adapted to enable movement of the fibers in the ferrule ( 300 )/receptacle ( 100 ) assembly so that, in use, the portion of the tuft of fibers ( 200 ) inside the ferrule ( 300 )/receptacle ( 100 ) assembly and beyond the layer of glue ( 112 ) can flex, which brush is characterized in that the receptacle ( 100, 400, 500 ) includes arrangements on its lateral walls ( 110, 500 ) which form an anchorage for the glue and said anchorage arrangements ( 115 ) take the form of orifices ( 115 ) passing through the lateral walls ( 110 ) of the receptacle ( 100 ).

1 . A brush including: 
 a handle ( 400 ),    a ferrule ( 300 )/receptacle ( 100 ) assembly joined to the handle ( 400 ),    a layer of glue ( 112 ) inside the ferrule/receptacle assembly, and    a homogeneous tuft of fibers ( 200 ) which has no built-in spacer, whose first end inside the ferrule ( 300 )/receptacle ( 100 ) assembly is embedded in the layer of glue ( 112 ) and whose free second end emerges from the ferrule ( 300 )/receptacle ( 100 ) assembly, in which brush the tuft of fibers ( 200 ) has an at least substantially homogeneous density throughout its length from its end embedded in the layer of glue ( 112 ) to its free second end, adapted to enable movement of the fibers in the ferrule ( 300 )/receptacle ( 100 ) assembly so that, in use, the portion of the tuft of fibers ( 200 ) inside the ferrule ( 300 )/receptacle ( 100 ) assembly and beyond the layer of glue ( 112 ) can flex, which brush is characterized in that the receptacle ( 100 ,  400 ,  500 ) includes arrangements on its lateral walls ( 110 ,  500 ) which form an anchorage for the glue and said anchorage arrangements ( 115 ) take the form of orifices ( 115 ) passing through the lateral walls ( 110 ) of the receptacle ( 100 ).    
     
     
         2 . A brush according to    claim 1   , characterized in that the size of the orifices ( 115 ) is chosen in relation to the quantity of glue ( 112 ,  412 ) introduced into the receptacle ( 100 ) so that the glue blocks the orifices ( 115 ) after the bristles ( 200 ) are inserted.  
     
     
         3 . A brush according to    claim 1    or    claim 2   , characterized in that it includes a member ( 300 ) adapted to extend over at least two sides of the receptacle ( 100 ) and which has interior arrangements ( 330 ) forming an anchorage for the glue and said arrangements ( 330 ) face the orifices ( 115 ) of the receptacle ( 100 ).  
     
     
         4 . A brush according to any preceding claim, characterized in that the receptacle ( 100 ) and the ferrule ( 300 ) are two separate members.  
     
     
         5 . A brush according to any of    claims 1    to    3   , characterized in that the receptacle ( 100 ) and the ferrule ( 300 ) are formed by one and the same member.  
     
     
         6 . A brush according to any preceding claim, characterized in that the layer of glue ( 112 ,  412 ) is hardened once only in simultaneous contact with the fibers ( 200 ) and the bottom ( 105 ,  400 ) of the receptacle ( 100 ,  400 ,  500 ).  
     
     
         7 . A brush according to any preceding claim, characterized in that the inside lateral faces ( 110 ) of the receptacle ( 100 ) are configured to diverge from the center of the receptacle ( 100 ) in the direction away from the bottom of the receptacle ( 100 ).  
     
     
         8 . A brush according to any preceding claim, characterized in that the lateral walls ( 110 ) of the receptacle ( 100 ) have a free edge slightly spaced from the edge of the tuft of fibers.  
     
     
         9 . A brush according to any preceding claim in conjunction with    claim 7   , characterized in that the inside lateral faces ( 110 ) of the receptacle ( 100 ) have at least one portion which includes, in the direction from the bottom of the receptacle ( 100 ) to a free edge of its lateral wall: 
 a first portion ( 116 ) at a given angle to the bottom, and    a second portion ( 117 ) inclined more steeply than the first portion toward the outside of the receptacle ( 100 ).    
     
     
         10 . A brush according to the preceding claim, characterized in that the portion ( 110 ) extending from the bottom of the receptacle ( 100 ) to its free edge also includes a third portion ( 118 ) beyond the second portion ( 117 ) and at the same end as the free edge that is inclined less steeply toward the outside than the second ( 117 ).  
     
     
         11 . A brush according to any preceding claim, characterized in that the receptacle ( 100 ) has a free edge and a rib ( 125 ) along that free edge projecting toward the outside of the receptacle ( 100 ).  
     
     
         12 . A brush according to any preceding claim, characterized in that the ferrule ( 300 ) forms an envelope around the receptacle ( 100 ) on the side thereof opposite the tuft ( 200 ) and borders the outside of the free edge of the lateral walls ( 110 ) of the receptacle ( 100 ).  
     
     
         13 . A brush according to any preceding claim, characterized in that it includes means ( 300 ) surrounding the receptacle ( 100 ) around an end portion of the receptacle ( 100 ) opposite the tuft of fibers ( 200 ) and said means form a sealed envelope ( 300 ) around this portion of the receptacle ( 100 ).  
     
     
         14 . A brush according to    claim 13   , characterized in that the envelope ( 300 ) is adapted to retain sufficient air in the brush for it to float in a liquid with the tuft of fibers ( 200 ) immersed therein.  
     
     
         15 . A brush according to any preceding claim, characterized in that the handle ( 400 ) includes a longitudinal passage ( 450 ) whose transverse contour is closed by the handle ( 400 ).  
     
     
         16 . A brush according to any preceding claim, characterized in that the layer of glue ( 112 ,  412 ) is from 1 to 5 mm thick.  
     
     
         17 . A brush according to any preceding claim, characterized in that the layer of glue ( 112 ,  412 ) is from 2 to 4 mm thick.  
     
     
         18 . A brush according to any preceding claim, characterized in that the layer of glue ( 112 ,  412 ) is approximately 3 mm thick.  
     
     
         19 . A brush according to any preceding claim, characterized in that the density of the fibers at the level of the layer of glue ( 112 ,  412 ) is less than 0.55 g/cm 3 .  
     
     
         20 . A brush according to any preceding claim, characterized in that the bottom wall ( 400 ,  500 ) of the receptacle ( 400 ,  500 ) is formed by a face of the handle ( 400 ) and the lateral walls ( 500 ) of the receptacle ( 400 ,  500 ) are formed by the walls of a member ( 500 ) surrounding the handle ( 400 ).  
     
     
         21 . A brush according to the preceding claim, characterized in that the face of the handle ( 400 ) constituting the bottom of the receptacle ( 400 ,  500 ) is provided with means ( 410 ) projecting in the layer of glue ( 112 ,  412 ) to retain it.  
     
     
         22 . A brush according to any of    claims 1    to    3    or any of    claims 5    to    21    when not combined with    claim 4   , characterized in that the handle, the receptacle and the ferrule are formed by one and the same member.