Wiper blade

Abstract

A wiper blade for a windshield wiper, in particular for a windshield wiper of a motor vehicle, is proposed, which has a wiper blade rubber with a wiper blade rubber lip ( 2 ). In order to achieve a low dry friction coefficient, the wiper blade rubber lip ( 2 ) is fabricated partially of polyethylene (FIG. 1 ).

1 . Wiper blade for a windshield wiper, in particular for a windshield wiper of a motor vehicle, with a wiper blade rubber, which features a wiper blade rubber lip ( 2 ,  6 ), characterized in that the wiper blade rubber lip ( 2 ,  6 ) is fabricated partially of polyethylene.  
     
     
         2 . Wiper blade according to  claim 1 , characterized in that the wiper blade rubber lip ( 2 ) is coated with polyethylene ( 1 ).  
     
     
         3 . Wiper blade according to  claim 1  or  2 , characterized in that a head piece ( 3 ) is attached to the wiper blade rubber lip ( 2 ) via a reversing bridge ( 4 ) and that the wiper blade rubber lip ( 2 ), the reversing bridge ( 4 ) and the head piece ( 3 ) are coated with polyethylene ( 1 ).  
     
     
         4 . Wiper blade according to one of claims  1  through  3 , characterized in that the wiper blade rubber lip ( 2 ) is coated partially with polyethylene ( 1 ).  
     
     
         5 . Wiper blade according to one of claims  1  through  4 , characterized in that the wiper blade rubber lip ( 6 ) contains polyethylene in volume.  
     
     
         6 . Wiper blade according to one of claims  1  through  5 , characterized in that the polyethylene is a PE-UHMW.  
     
     
         7 . Wiper blade according to one of claims  1  through  5 , characterized in that the polyethylene is a PE-HD.  
     
     
         8 . Wiper blade according to one of claims  1  through  5 , characterized in that the polyethylene is a PE-X.  
     
     
         9 . Process to manufacture a wiper blade for a windshield wiper, which is comprised of a wiper blade rubber with a wiper blade rubber lip, characterized in that the wiper blade rubber lip is manufactured by vulcanizing a rubber material together with polyethylene.  
     
     
         10 . Process according to  claim 9 , characterized in that the polyethylene is in powder form as a primary material and has a grain size of less than 30 μm.  
     
     
         11 . Process according to  claim 9  or  10 , characterized in that the rubber material is coated with the polyethylene before vulcanization.  
     
     
         12 . Process according to  claim 11 , characterized in that the rubber material is coated with a dispersion containing polyethylene particles.  
     
     
         13 . Process according to  claim 11 , characterized in that the polyethylene is applied to the rubber material in accordance with an electrostatic powder coating process.  
     
     
         14 . Process according to  claim 11 , characterized in that the polyethylene is applied to the rubber material by means of a fluidized bed.  
     
     
         15 . Process according to  claim 11 , characterized in that the rubber material and the polyethylene are combined with one another in accordance with a co-extrusion process.  
     
     
         16 . Process according to one of the claims  11  through  15 , characterized in that the rubber material coated polyethylene is exposed to purging air.  
     
     
         17 . Process according to  claim 9  or  10 , characterized in that the wiper blade rubber lip is manufactured of a mixture, which is comprised of the rubber material and the polyethylene.  
     
     
         18 . Process according to  claim 17 , characterized in that the mixture contains between 1% and 50% polyethylene powder.