Anchor rail and method for producing an anchor rail

Abstract

An anchor rail for fixing fasteners includes a first rail part and a second rail part which are connected to one another and on each of which anchor webs are formed, wherein a channel-shaped receptacle for a head section of a fastening means is formed between a first wall of the first rail part and a second wall of the second rail part, and an inwardly projecting web is provided on the first wall and an inwardly projecting web is provided on the second wall, and the inwardly projecting webs overlap the channel-shaped receptacle at the edge side. An outwardly projecting support web projects at least in sections on the first wall and/or the second wall opposite the inwardly projecting web. A method for producing an anchor rail which can absorb particularly high forces includes forming the inwardly and outwardly projecting webs from strip-shaped blanks welded to the first and second rail parts.

1 . An anchor rail ( 1 ) for fixing fasteners ( 20 ), comprising: a first rail part ( 2   a ) and a second rail part ( 2   b ), which are connected to one another and on each of which anchor webs ( 3 ) are formed, wherein a channel-shaped receptacle ( 13 ) for a head section ( 21 ) of a fastener ( 20 ) is formed between a first wall ( 8   a ) of the first rail part ( 2   a ) and a second wall ( 8   b ) of the second rail part ( 2   b ), and an inwardly projecting web ( 10 ) is provided on the first wall ( 8   a ) and an inwardly projecting web ( 10 ) is provided on the second wall ( 8   b ), and the inwardly projecting webs ( 10 ) overlap the channel-shaped receptacle ( 13 ) on an edge side, wherein an outwardly projecting support web ( 12 ) projects at least in sections on the first wall ( 8   a ) and/or the second wall ( 8   b ) opposite the inwardly projecting web ( 10 ). 
     
     
         2 . The anchor rail according to  claim 1 , wherein the support web is a continuous, outwardly projecting support web ( 12 ) and is provided on each of the first and second walls ( 8   a ,  8   b ). 
     
     
         3 . The anchor rail according to  claim 1 , wherein the first wall ( 8   a ), the inwardly projecting web ( 10 ) and the outwardly projecting support web ( 12 ) are of T-shaped design in cross-section. 
     
     
         4 . The anchor rail according to  claim 1 , wherein the outwardly projecting support web ( 12 ) is welded to the first or second wall ( 8   a ,  8   b ). 
     
     
         5 . The anchor rail according to  claim 1 , wherein the outwardly projecting support web ( 12 ) is integrally formed with the inwardly projecting web ( 10 ). 
     
     
         6 . The anchor rail according to  claim 5 , wherein the outwardly projecting support web ( 12 ) and the inwardly projecting web ( 10 ) are made thicker than the first and second rail parts ( 2   a ,  2   b ). 
     
     
         7 . The anchor rail according to  claim 5 , wherein the outwardly projecting support web ( 12 ) and the inwardly projecting web ( 10 ) are formed of a material of higher strength than the first and second rail parts ( 2   a ,  2   b ). 
     
     
         8 . The anchor rail according to  claim 1 , wherein the outwardly projecting support web ( 12 ) and the inwardly projecting web ( 10 ) are made of a flat steel sheet which is connected to the first or second wall ( 8   a ,  8   b ) in a central region via a welded butt seam ( 14 ). 
     
     
         9 . The anchor rail according to  claim 1 , wherein each rail part ( 2   a ,  2   b ) is made of a bent steel sheet. 
     
     
         10 . The anchor rail according to  claim 1 , wherein the first and second rail parts ( 2   a ,  2   b ) are connected to each other via mutually welded connecting webs ( 6   a ,  6   b ). 
     
     
         11 . The anchor rail according to  claim 1 , wherein a toothing ( 11 ) is formed on each of the inwardly projecting webs ( 10 ). 
     
     
         12 . A method for producing an anchor rail ( 1 ) for fixing fasteners ( 20 ), comprising the following steps:
 producing two blanks for a first and a second rail part ( 2   a ,  2   b ) with anchor webs ( 3 ) from a steel sheet;   producing strip-shaped blanks from a steel sheet;   welding a first strip-shaped blank to a first wall ( 8   a ) of a first rail part ( 2   a );   welding a second strip-shaped blank to a second wall ( 8   b ) of the second rail part ( 2   b ), and   connecting the first rail part ( 2   a ) to the second rail part ( 2   b ), wherein a channel-shaped receptacle ( 13 ) for a head section ( 21 ) of a fastening means ( 20 ) is formed between the first wall ( 8   a ) and second wall ( 8   b ), wherein each strip-shaped blank forms an inwardly projecting web ( 10 ) on the first and second walls ( 8   a ,  8   b ), which covers the receptacle ( 13 ) at the edge, and an outwardly projecting support web ( 12 ).   
     
     
         13 . The method according to  claim 12 , wherein the welding of the first and second strip-shaped blanks is performed by laser welding. 
     
     
         14 . The method according to  claim 12 , wherein a strip-shaped blank is welded to a front side of each of the first and second walls ( 8   a ,  8   b ) in a central region via a butt seam ( 14 ).