Tamper resistant fence
A security cover is used in conjunction with a visually pleasing picket fence barrier. The security cover, having a C-shaped cross section, restricts access to bolts used to couple each picket to top and bottom support beams and thereby prevents tampering with the fence.
1. A fence section, comprising:
a first vertical support post and a second vertical support post, each of the first vertical support post and the second vertical support post including a bracket having a substantially vertical bore, the bracket extending substantially perpendicular from the support post in the direction of the other support post;
a lower support beam and an upper support beam each including a plurality of spaced horizontal bores directed perpendicular to the plane defined by the first and second supporting posts, each support beam further including a pair of distal flanges each having a vertical bore adapted to mate with the vertical bore of a corresponding supporting post bracket;
a plurality of vertical pickets, each including an upper bore adapted to mate with a bore of the upper support beam and a lower bore adapted to mate with a bore of the lower support beam;
a plurality of bolts coupling each vertical picket upper bore to a corresponding upper support beam horizontal bore and coupling each vertical picket lower bore to a corresponding lower support beam horizontal bore;
a cover having a C-shaped cross section, the cover including a plurality of vertical openings to allow each said vertical pickets to pass through the cover, the cover including a pair of vertical surfaces extending substantially perpendicular to said vertical openings, the cover further including a first distal vertical bore at a first end of the cover and a second distal vertical bore at a second end of the cover, the first and second distal bores adapted to mate with corresponding vertical bores in the upper and lower support beams and with corresponding vertical bores in the supporting post brackets, the vertical surfaces adapted to impede access to the bolts securing the pickets to the supporting beams when the cover is secured to the supporting post brackets and to a support beam by the distal bores; and
a plurality of security fasteners each fitted within each cover distal vertical bore, the supporting beam flange bore, and the supporting post bracket, bore the security fasteners rigidly securing the cover distal vertical bore, the supporting beam flange bore, and the supporting post bracket bore in alignment therebetween and adapted to prevent removal of the cover from the support beam.
2. The fence section of claim 1 , wherein said security fasteners each include a bolt and a safety nut.
3. The fence section of claim 1 , wherein said vertical pickets are steel pickets.
4. The fence section of claim 2 , wherein said safety nut includes a smooth exterior conical section having internal threading, the exterior section coupled to a gripping ring adapted to break from the exterior section in response to application of torque beyond a predetermined threshold.