Roller bar security device and fence

Abstract

A roller bar security device includes a longitudinally extending tubular member having first and second ends and a plurality of rigid overlapping outwardly extending blades each of which has a generally triangular shape with a base mounted on the tubular member and a sharp point at its apex. The blades are fixed to and extend around and along the tubular member with the apexes of alternate longitudinally spaced blades facing in generally opposite directions. A mounting bracket and bearing are provided for rotatably mounting the tubular member and blades on top of a wall or the like so that the sharp points and edges will deter a potential intruder from climbing over the security device.

1 . A roller bar security device comprising a longitudinally extending member and a plurality of overlapping outwardly projecting blades fixed to and extending along and around said member, mounting means including bearing means for rotatably mounting said member on top of a physical barricade whereby said overlapping outwardly projecting blades deter an intruder from passing over the security device.  
   
   
       2 . A roller bar security device according to  claim 1  in which each of said blades includes a sharp point at an outer end thereof.  
   
   
       3 . A roller bar security device according to  claim 2  in which each of said blades includes a sharp edge.  
   
   
       4 . A roller bar security device according to  claim 2  in which each of said blades includes a generally triangular shape with two sharp edges.  
   
   
       5 . A roller bar security device comprising a longitudinally extending tubular member having first and second ends and a plurality of overlapping outwardly projecting blades each of which has a base and an apex, said blades fixed to and extending along and around said tubular member with the apexes of alternate longitudinally spaced blades facing in generally opposite directions, mounting means including bearing means for rotatably mounting said tubular member on top of a physical barricade whereby said overlapping outwardly projecting blades deter an individual from passing over the security device.  
   
   
       6 . A roller bar security device according to  claim 5  in which the apexes of said longitudinally spaced blades point generally to the opposite ends of said tubular member.  
   
   
       7 . A roller bar security device according to  claim 6  in which each of said blades includes a sharp point at an outer end thereof.  
   
   
       8 . A roller bar security device according to  claim 7  in which each of said blades includes a sharp edge.  
   
   
       9 . A roller bar security device according to  claim 8  in which each of said blades includes a generally triangular shape.  
   
   
       10 . A roller bar security device according to  claim 9  in which said tubular member is steel.  
   
   
       11 . A roller bar security device according to  claim 10  in which said tubular member has a wall thickness of about 2 mm and is coated with a primer to prevent rust and in which four rows of blades are made of metal are riveted to said tubular member and are galvanized to prevent rusting.  
   
   
       12 . A roller bar security device according to  claim 11  in which said blades have a thickness of about 2 mm.  
   
   
       13 . A security fence comprising a physical barrier having a top and extending upwardly from the ground by at least about eight feet and a roller bar security device fixed to said top of said physical barrier, said roller bar security device comprising a longitudinally extending member having first and second ends and a plurality of overlapping outwardly projecting blades each of which has a base and a apex, said blades fixed to and extending along and around said longitudinally extending members with the apexes of alternate longitudinally spaced blades facing in generally opposite directions, mounting means including bearing means for rotatably mounting said tubular members on said top of said physical barrier whereby said rotatable overlapping outwardly projecting blades deter an individual from passing over the security fence.  
   
   
       14 . A security fence according to  claim 13  in which said mounting means includes a flat mounting plate and bolts for fixing said plate to said top of said physical barrier and in which said mounting means includes a plurality of outwardly projecting overlapping blades fixed thereto and positioned to prevent an individual from crossing over the security fence.  
   
   
       15 . A security fence according to  claim 13  in which said mounting means includes a saddle shaped mounting bracket and a plurality of outwardly projecting overlapping blades fixed to said mounting means and positioned to prevent an individuals hand or arm from reaching said bracket.  
   
   
       16 . A security fence according to  claim 13  which includes a plurality of roller bar security devices disposed on said top of said physical barrier and bearing means at each end of said tubular member.  
   
   
       17 . A security fence according to  claim 13  in which said blades are disposed at an angle of between about 15° to 75° with respect to said longitudinally extending members.  
   
   
       18 . A security fence according to  claim 17  in which said blades are disposed at an angle of about 30° with respect to said longitudinally extending member.  
   
   
       19 . A security fence according to  claim 18  in which said bearing means are low friction long life bearings that do not require lubrication.