Pale

Abstract

A pale (4) for a palisade fence, the pale (4) comprises a longitudinal web (5) and two longitudinal side portions (6, 7), respective first and second longitudinal side portions (6, 7) extending from each side of the longitudinal web (5) at an angle greater than 70 degrees and less than or equal to 90 degrees.

1 . A pale for a palisade fence, the pale comprising a longitudinal web and two longitudinal side portions, respective first and second longitudinal side portions extending from each side of the longitudinal web at an angle greater than 65 degrees and less than or equal to 90 degrees. 
     
     
         2 . A pale according to  claim 1 , wherein the pale has a thickness of between about 1 mm and about 2 mm. 
     
     
         3 . A pale according to  claim 1 , wherein the pale satisfies the requirements of British Standard 1722-12: 2006 regarding general purpose (GP) palisade fences and/or security (SP) palisade fences. 
     
     
         4 . A pale according to  claim 1 , wherein during a three-point bending test the pale has a maximum deflection at its middle of less than or equal to 8 mm when subjected to a load of 2.5 kN, or of less than or equal to 10 mm when subjected to a load of 3.5 kN. 
     
     
         5 . A pale according to  claim 1 , wherein the pale is formed from metal. 
     
     
         6 . A pale according to  claim 5 , wherein the metal is steel and has a yield stress greater than 235 N/mm 2 . 
     
     
         7 . A pale according to  claim 1 , wherein the pale is cold formed by rolling or press braking. 
     
     
         8 . A pale according to  claim 1 , wherein the first longitudinal side portion comprises first and second longitudinal side walls connected to one another at one of their longitudinal edges by a further longitudinal web. 
     
     
         9 . A pale according to  claim 8 , wherein the second longitudinal side portion comprises first and second longitudinal side walls connected to one another at one of their longitudinal edges by a further longitudinal web. 
     
     
         10 . A pale according to  claim 8 , wherein one or both of the further longitudinal webs is arched or pointed. 
     
     
         11 . A pale according to  claim 8 , wherein one or both of the further longitudinal webs is substantially flat. 
     
     
         12 . A pale according to  claim 8 , wherein the second longitudinal side wall comprises a free longitudinal edge portion. 
     
     
         13 . A pale according to  claim 12 , wherein the free longitudinal edge portion comprises a lip comprising a free longitudinal edge of the second longitudinal side wall. 
     
     
         14 . A pale according to  claim 1 , wherein the longitudinal web is substantially flat. 
     
     
         15 . A pale according to  claim 1 , wherein one or both longitudinal side portions comprise strengthener comprising a longitudinal formation and/or one or more projections and/or depressions. 
     
     
         16 . A pale according to  claim 1 , wherein the pale has a face to view greater than 65 mm and less than 155 mm. 
     
     
         17 . A pale according to  claim 1 , wherein the pale has a cross-sectional area of less than 205 mm 2  extending along a major proportion of its length. 
     
     
         18 . A pale according to  claim 1 , wherein the pale comprises a security head. 
     
     
         19 . A palisade fence comprising two posts, at least one rail extending between the posts and at least one pale according to  claim 1  connected to the rail. 
     
     
         20 . A kit of parts for a palisade fence, the kit comprising two posts, at least one rail and at least one pale according to  claim 1 .