Method for manufacturing bristle products, bristle product manufacturing machine, bristle product, and use of a fastening anchor made of plastics material

Abstract

A method of manufacturing bristle products ( 2 ), in which a bristle carrier ( 3 ) provided with at least one bundle receptacle bore ( 4 ) is provided, and a bristle bundle ( 5 ) is incorporated conjointly with a fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ) and anchored in the latter by the fastening anchor ( 6 ). The fastening anchor ( 6 ), during incorporation into the bundle receptacle bore ( 4 ), is deformed while forming at least one end-proximal anchoring structure ( 7 ).

1 . A method for manufacturing bristle products ( 2 ), the method comprising:
 providing a bristle carrier ( 3 ) with at least one bundle receptacle bore ( 4 );   incorporating a bristle bundle ( 5 ) conjointly with a fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ) and anchoring the bristly bundle ( 5 ) in the bundle receptacle bore ( 4 ) with the fastening anchor ( 6 ); and   deforming the fastening anchor ( 6 ) during incorporation into the bundle receptacle bore ( 4 ) to form at least one end-proximal anchoring structure ( 7 ).   
     
     
         2 . The method as claimed in  claim 1 , further comprising at least one of a) generating the at least one anchoring structure ( 7 ) during incorporation of the fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ) due to contact between the fastening anchor ( 6 ) and a bore wall ( 8 ) of the bundle receptacle bore ( 4 ), or generating an end-proximal thickening as the at least one end-proximal anchoring structure ( 7 ). 
     
     
         3 . The method as claimed in  claim 1 , wherein the fastening anchor ( 6 ) is at least one of a) deformed symmetrically or asymmetrically, or b) plastically deformed while forming the at least one end-proximal anchoring structure ( 7 ). 
     
     
         4 . The method as claimed in  claim 1 , further comprising compressing the fastening anchor ( 6 ) upon incorporation into the bundle receptacle bore ( 4 ) by a thruster tongue ( 9 ) of a stuffing tool ( 10 ) of a bristle product manufacturing machine ( 1 ). 
     
     
         5 . The method as claimed in  claim 1 , further comprising compressing the fastening anchor ( 6 ) upon incorporation into the bundle receptacle bore ( 4 ) and, as a result, at least one of a) increasing a filling level of the bristle bundle ( 5 ) in the bundle receptacle bore ( 4 ), or b) increasing an extraction force of the bristle bundle ( 5 ). 
     
     
         6 . The method as claimed in  claim 1 , further comprising, during incorporation of the fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ), displacing material of the bristle carrier ( 3 ) by a thruster tongue ( 9 ) of a stuffing tool ( 10 ) of a bristle product manufacturing machine ( 1 ), from a peripheral region of the bundle receptacle bore ( 4 ) into the bundle receptacle bore ( 4 ) and over the fastening anchor ( 6 ). 
     
     
         7 . The method as claimed in  claim 1 , further comprising connecting the fastening anchor ( 6 ) and the bristle carrier ( 3 ), during incorporation of the fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ), to one another in a materially integral manner. 
     
     
         8 . The method as claimed in  claim 1 , further comprising heating the bristle carrier ( 3 ) at least one of prior to or upon incorporation of the fastening anchor ( 6 ). 
     
     
         9 . The method as claimed in  claim 1 , wherein a length of the fastening anchor ( 6 ) is larger than a diameter of the bundle receptacle bore ( 4 ), and/or wherein the fastening anchor ( 6 ) is incorporated into the bundle receptacle bore ( 4 ) by a thruster tongue ( 9 ) which on a front end ( 12 ) thereof has a width larger than a diameter of the bundle receptacle bore ( 4 ). 
     
     
         10 . The method as claimed in  claim 1 , wherein at least one of the fastening anchor ( 6 ) or the bristle carrier ( 3 ) are formed of plastics material. 
     
     
         11 . The method as claimed in  claim 1 , wherein the fastening anchor ( 6 ) is formed of a plastics material which is softer or harder than a plastics material of which the bristle carrier ( 3 ) is formed. 
     
     
         12 . The method as claimed in  claim 1 , wherein the fastening anchor ( 6 ) and the bristle carrier ( 3 ) are formed of materials from a same plastics material family, or of a same plastics material. 
     
     
         13 . The method as claimed in  claim 1 , wherein at least one of a) the fastening anchor ( 6 ) and/or the bristle carrier ( 3 ) are formed of a plastics material having a hardness of at least 60 Shore D, or b) the fastening anchor ( 6 ) and the bristle carrier ( 3 ) are formed of a plastics material having a comparable hardness. 
     
     
         14 . The method as claimed in  claim 1 , wherein the at least one bundle receptacle bore ( 4 ) is at least one of free of a) an anchor track, b) has a cylindrical bore wall ( 8 ) or a conical bore wall ( 8 ) tapering toward the bore base, or has a bore wall ( 8 ) provided with a retaining structure ( 13 ). 
     
     
         15 . The method as claimed in  claim 13 , wherein the plastics material of the fastening anchor ( 6 ) and/or of the bristle carrier ( 3 ) has an E modulus of at least 1000 MPa and a tensile strength of at least 30 MPa and/or the plastics material is polyamide 12 (PA12), polyamide 6 (PA6), polyamide 6.12 (PA6.12), polystyrene (PS), polybutylene terephthalate (PBT), polycarbonate (PC), polyoxymethylene (POM), styrene acrylonitrile resin (SAN), acrylonitrile, polyethylene terephthalate (PET), or polypropylene (PP). 
     
     
         16 . The method as claimed in  claim 1 , further comprising stuffing the fastening anchor ( 6 ) and the bristle bundle ( 5 ) into the bundle receptacle bore ( 4 ) of the bristle carrier ( 3 ) by a stuffing tool ( 10 ) of a bristle product manufacturing machine ( 1 ). 
     
     
         17 . The method as claimed in  claim 1 , further comprising stuffing the bristle bundles ( 5 ) and the fastening anchors ( 6 ) into the bundle receptacle bores ( 4 ) at a stuffing rate of at least 400 stuffing procedures per minute. 
     
     
         18 . The method as claimed in  claim 1 , wherein a thruster tongue ( 9 ) by which the bristle bundle ( 5 ) and the fastening anchor ( 6 ) are incorporated into the bundle receptacle bore ( 4 ) strikes the bundle receptacle bore ( 4 ) at a speed between 1.2 m/s and 4.0 m/s. 
     
     
         19 . A bristle product manufacturing machine ( 1 ), comprising a stuffing tool ( 10 ) which has a thruster tongue ( 9 ) for incorporating bristle bundles ( 5 ) and fastening anchors ( 6 ) into bundle receptacle bores ( 4 ) of offered-up bristle carriers ( 3 ). 
     
     
         20 . The bristle product manufacturing machine ( 1 ) as claimed in  claim 19 , wherein the thruster tongue ( 9 ) has at least one peeling edge ( 14 ) which is formed on a narrow side of a front end ( 12 ) of the thruster tongue ( 9 ). 
     
     
         21 . The bristle product manufacturing machine ( 1 ) as claimed in  claim 20 , wherein the thruster tongue ( 9 ) has in each case at least one of the peeling edges ( 14 ) on each of two sides of the front end ( 12 ) that face away from one another. 
     
     
         22 . The bristle product manufacturing machine ( 1 ) as claimed in  claim 19 , wherein the thruster tongue ( 9 ) has on a front end ( 12 ) thereof, at least one clearance ( 15 ) having at least one material-guiding face ( 16 ), and the material-guiding face ( 16 ) is aligned obliquely to a longitudinal axis of the thruster tongue ( 9 ), and/or faces the longitudinal axis of the thruster tongue ( 9 ). 
     
     
         23 . The bristle product manufacturing machine ( 1 ) as claimed in  claim 22 , wherein the at least one clearance ( 15 ) has at least one of a concave or a semi-cylindrical contour, and the at least one clearance ( 15 ) penetrates the thruster tongue ( 9 ) transversely to the flat sides thereof. 
     
     
         24 . The bristle product manufacturing machine ( 1 ) as claimed in  claim 20 , wherein the thruster tongue ( 9 ) has in a front end ( 12 ) thereof a longitudinal groove ( 18 ) which extends between two narrow sides of the thruster tongue ( 9 ) that face away from one another. 
     
     
         25 . A bristle product ( 2 ) having a bristle carrier ( 3 ) which has at least one bundle receptacle bore ( 4 ) in which a bristle bundle ( 5 ) is fastened by a fastening anchor ( 6 ), wherein the fastening anchor ( 6 ) has at least one anchoring structure ( 7 ) formed by a deformation of the fastening anchor ( 6 ) during incorporation of the fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ). 
     
     
         26 . The bristle product ( 2 ) as claimed in  claim 25 , wherein the at least one anchoring structure ( 7 ) is formed by a plastic deformation of the fastening anchor ( 6 ) during the incorporation of the fastening anchor ( 6 ) into the bundle receptacle bore ( 4 ), and/or the at least one anchoring structure ( 7 ) of the fastening anchor ( 6 ) is at least partially covered by material of the bristle carrier ( 3 ) that has been displaced into the bundle receptacle bore ( 4 ). 
     
     
         27 . The bristle product ( 2 ) as claimed in  claim 25 , wherein the fastening anchor ( 6 ) is formed of plastics material.