Carrier plate and brush, in particular toothbrush with carrier plate

Abstract

The method for manufacturing bristle arrangements for brushes, and the device ( 1 ), the carrier pad ( 17 ), and the brush ( 60 ) which is populated with a carrier pad ( 17 ) of this type, enable simplification of the manufacture of bristle arrangements for brushes, inter alia in that the bristle bundles ( 5 ) which by means of a gas or air stream are conveyed through the conveying device ( 6 ) to the bundle-retaining plate ( 9 ) when being conveyed through the conveying device ( 6 ) are electrostatically discharged, such that they may be more easily conveyed through the conveying device ( 6 ), and in that they reduce the complexity in the fastening of bristle bundles ( 5 ) in a carrier pad ( 17 ) without anchoring, since the carrier pad ( 17 ) on the rear side has material protrusions ( 54 ) which are fused and thereafter interference-fitted in a bundle-fastening plane, in order for bristle bundles ( 5, 5 a ) which have been incorporated into the perforations ( 24 ) of the carrier pad ( 17 ) to be connected in a form-fitting and/or force-fitting manner to the carrier pad ( 17 ) in a simple manner (FIG. 3 ).

1 . A carrier pad ( 17 ) comprising a carrier pad body with a plurality of perforations ( 24 ) which penetrate the carrier pad body, into which perforations bristle bundles ( 5 ,  5   a ) which are comprised of bristle filaments ( 2 ) are insertable and fastenable without anchoring on the carrier pad ( 17 ), the carrier pad ( 17 ) includes a back side ( 53 ) which faces away from the bristle bundles ( 5 ) which are guided into the perforations ( 24 ) on which there is a plurality of material protrusions ( 54 ), the material protrusions ( 54 ) are fusible and for fastening the bristle bundles ( 5 ,  5   a ) on the carrier pad ( 17 ) are force-fittable in a bundle-fastening plane. 
     
     
         2 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the bristle bundles ( 5 ,  5   a ) which are introducible or are introduced into the perforations ( 24 ) are comprised of tapered bristle filaments ( 2   a ), and at least after their fastening to the carrier pad ( 17 ) form a bristle arrangement consisting of tapered bristle filaments ( 2   a ), or wherein a portion of the bristle bundles ( 5 ,  5   a ) which are introducible or are introduced into the perforations ( 24 ) are formed of tapered bristle filaments ( 2   a ), and another portion of the bristle bundles ( 5 ,  5   a ) which are introducible or are introduced into the perforations ( 24 ) are comprised of conventional bristle filaments ( 2 ), and the bristle bundles ( 5   a ) formed of the tapered bristle filaments ( 2   a ) and the bristle bundles ( 5 ) comprised of the conventional bristle filaments ( 2 ) form a mixed bristle arrangement ( 58 ) at least after fastening to the carrier pad ( 17 ). 
     
     
         3 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the bristle filaments ( 2 ,  2   a ) are comprised of at least one of polyamide or polyester. 
     
     
         4 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the bristle bundles ( 5 ) post fusing of the material protrusions ( 54 ) and interference-fitting of the fused material protrusions ( 54 ) into the bundle-fastening plane are connected to the carrier pad ( 17 ) in at least one of a form-fitting or force-fitting manner. 
     
     
         5 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the material protrusions ( 54 ) are configured as pimples, and the material protrusions ( 54 ) project transversely from the back side of the carrier pad ( 17 ). 
     
     
         6 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the perforations ( 24 ) have at least one of a round, oval, circular, or polygonal cross section. 
     
     
         7 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the material protrusions ( 54 ) are integrally connected to the carrier pad ( 17 ) or the material protrusions ( 54 ) are comprised of a same material as the carrier pad ( 17 ), or the material protrusions ( 54 ) are integrally connected to and comprised of the same material as the carrier pad ( 17 ). 
     
     
         8 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein a material forming the material protrusions ( 54 ) has a lower melting point than a material forming at least one of the bristle filaments ( 2 ,  2   a ) or the bristle bundles ( 5 ,  5   a ). 
     
     
         9 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein a material forming at least one of the bristle filaments ( 2 ,  2   a ) or the bristle bundles ( 5 ,  5   a ) has a lower melting point than a material forming the material protrusions ( 54 ). 
     
     
         10 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the material protrusions ( 54 ) narrow toward free ends thereof. 
     
     
         11 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the carrier pad ( 17 ) on the back side ( 53 ) which faces away from the bristle bundles ( 5 ,  5   a ) has a delimitation ( 55 ) which projects from the back side ( 53 ) of the carrier pad ( 17 ) and which surrounds the perforations ( 24 ) and the material protrusions ( 54 ), and the delimitation ( 55 ) of the carrier pad ( 17 ) is at least half a height of the material protrusions ( 54 ) which are disposed on the back side ( 53 ) of the carrier pad ( 17 ). 
     
     
         12 . The carrier pad ( 17 ) as claimed in  claim 1 , wherein the carrier pad ( 17 ) on the back side ( 53 ) facing away from the bristle bundles ( 5 ,  5   a ) further includes, at least after introduction of the bristle bundles ( 5 ,  5   a ) into the perforations ( 24 ) or post fusing and interference-fitting of the material protrusions ( 54 ), a cover ( 59 ) which is sprayable on or is sprayed. 
     
     
         13 . A brush ( 60 ) comprising a handle ( 61 ) and a brush head ( 62 ), the brush head ( 62 ) has a carrier-pad receptacle ( 63 ) and the carrier pad ( 17 ) according to  claim 1  which is populated with the bristle bundles ( 5 ,  5   a ) is fastened therein. 
     
     
         14 . The brush ( 60 ) as claimed in  claim 13 , wherein the carrier pad ( 17 ) is at least one of clipped, welded, or adhesively bonded into the carrier-pad receptacle ( 63 ). 
     
     
         15 . The brush according to  claim 13 , wherein the carrier pad ( 17 ) is fastened to the brush ( 60 ) by an inmould process. 
     
     
         16 . The carrier pad ( 17 ) of  claim 2 , wherein the conventional bristle filaments ( 2 ) are comprised of polyamide and the tapered bristle filaments are comprised of polyester. 
     
     
         17 . The carrier pad ( 17 ) of  claim 1 , wherein the material protrusions ( 54 ) are uniformly distributed around the perforations ( 24 ). 
     
     
         18 . The carrier pad ( 17 ) of  claim 1 , wherein the perforations ( 24 ) are configured as elongate perforations. 
     
     
         19 . The carrier pad ( 17 ) of  claim 7 , wherein the material is a fusible plastic material.