Toothbrush with inclined bristles and pointed bristles

Abstract

A brush head for a toothbrush with hunches of bristles inserted therein, wherein at least one of these bunches of bristles protrudes out of the bristle surface in a perpendicular fashion and at least one of these bunches is inclined, and is characterized in that the inclined bunches of bristles comprise cylindrical bristles, and in that at least some of the bunches which protrude in a perpendicular fashion comprise pointed bristles.

What is claimed is: 
     
         1 . A brush head for a toothbrush, the brush head having a longitudinal axis and comprising:
 a bristle surface on a head part with tufts of bristles set therein,   wherein the tufts of bristles comprise a first transverse row of tufts comprising bristle tufts that are vertical on the bristle surface, a sixth transverse row of tufts comprising bristle tufts that are slanted forward on the bristle surface, and a third transverse row of tufts comprising bristle tufts that are slanted backward on the bristle surface;   wherein each bristle tuft of the first transverse row of tufts consists of pointed bristles and wherein each bristle tuft of the sixth and third transverse rows of tufts consists of cylindrical bristles; and   wherein the first transverse row of tufts is positioned on the head between the sixth and third transverse rows of tufts.   
     
     
         2 . The brush head according to  claim 1 , further comprising a second transverse row of tufts comprising bristle tufts that are vertical on the bristle surface, the second transverse row of tufts positioned on the head adjacent the first transverse row of tufts and between the sixth and third transverse rows of tufts. 
     
     
         3 . The brush head according to  claim 2  wherein the bristle tufts of the second transverse row of tufts consist of pointed bristles. 
     
     
         4 . The brush head according to  claim 3 , wherein at least one tuft of the first transverse row and at least one tuft of the second transverse row are arranged linearly in pairs parallel to the longitudinal axis. 
     
     
         5 . The brush head according to  claim 4 , wherein the at least one tuft of the first transverse row and the at least one tuft of the second transverse row are linearly spaced apart at a first distance of 0.65 to 0.95 mm. 
     
     
         6 . The brush head according to  claim 3 , wherein the bristle tufts of the first and second transverse rows of tufts have a height between 10.0 to 13.0 mm. 
     
     
         7 . The brush head according to  claim 3 , further comprising a fourth transverse row of tufts comprising bristle tufts that are slanted forward on the bristle surface, the bristle tufts of the fourth transverse row of tufts consisting of cylindrical bristles, the third transverse row of backward slanted tufts and the fourth transverse row of forward slanted tufts staggered in a transverse direction such that the bristle tufts of the third and fourth transverse rows of tufts form a double row of x-wise crossing tufts; and wherein the third and fourth transverse rows of tufts are arranged on one side of the first and second transverse rows of tufts. 
     
     
         8 . The brush head according to  claim 7 , further comprising a fifth transverse row of tufts comprising bristle tufts that are slanted backward on the bristle surface, the bristle tufts of the fifth transverse row of tufts consisting of cylindrical bristles, the sixth transverse row of forward slanted tufts and the fifth transverse row of backward slanted tufts staggered in the transverse direction such that the bristle tufts of the fifth and sixth transverse rows of tufts form a double row of x-wise crossing tufts; and wherein the fifth and sixth transverse rows of tufts are arranged on another side of the first and second transverse rows of tufts. 
     
     
         9 . The brush head according to  claim 8 , further comprising a seventh transverse row of tufts vertically projecting from the bristle surface and an eighth transverse row of tufts vertically projecting from the bristle surface. 
     
     
         10 . The brush head according, to  claim 9 , wherein the bristle tufts of the seventh and eighth transverse rows consist of pointed bristles having a height that is equal to the height of the bristle tufts of the first and second transverse rows. 
     
     
         11 . The brush head according to  claim 9 , further comprising a ninth transverse row of tufts vertically projecting from the bristle surface and a tenth transverse row of pointed tufts vertically projecting from the bristle surface. 
     
     
         12 . The brush head according to  claim 11 , wherein the bristle tufts of the ninth and tenth transverse rows consist of pointed bristles having a height that is equal to the height of the bristle tufts of the first and second transverse rows. 
     
     
         13 . The brush head according to  claim 8 , wherein the forward slanted tufts of the fourth and sixth transverse rows are tilled forward by a first angle of +1° to +45° relative to a line standing vertical to the bristle surface; and wherein the backward slanted tufts of the third and fifth transverse rows are tilted backward by a second angle of −1° to −45° relative to the line standing vertical to the bristle surface. 
     
     
         14 . The brush head according to  claim 13 , wherein the first angle is between +1° to +10° and wherein the second angle is between −1° to −10°. 
     
     
         15 . The brush head according to  claim 1 , wherein the pointed bristles consist of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate or polypentylene terephthalate, and wherein the cylindrical bristles consist of polydimethylene adipamide, polytrimethylene adipamide, polytetramethylene adipamide, polypentamethylene adipamide, polyhexamethylene adipamide, polydimethylene dodecanamide, polytrimethylene dodecanamide, polytetramethylene dodecanamide, polypentamethylene dodecanamide, or polyhexamethylene dodecanamide. 
     
     
         16 . A manual toothbrush comprising a handle part and the brush head according to  claim 1 . 
     
     
         17 . An electric toothbrush comprising a handle part and the brush head according to  claim 1 .