Security fence spike

Abstract

The security fence spike is attached to the upper rail of a chain link security fence or the like, to project generally diametrically through a coil of razor wire or concertina wire strung along the upper rail of the fence. The security spike is a rigid metal projection, and resists collapse when a heavy sheet of material or blanket is tossed over the coiled wire atop the fence by a person(s) attempting to scale the fence. A row of spikes is preferably installed along the upper rail of the fence, threatening injury to anyone attempting to scale the fence even after covering a coil of razor wire or the like atop the fence. The security spike is formed of sheet metal bent to form a triangular cross section for rigidity and strength. The spike is attached to a brace band, which, in turn, is clamped to the fence.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates generally to fences and similar barriers. More particularly, the present invention comprises a spike for installation along the upper rail or edge of a security fence having coiled razor wire or concertina wire extending therealong.[0003]2. Description of the Related Art[0004]Fences have been used for delineating property lines and borders and for security purposes for a considerable period of time. Fence materials have evolved from the use of natural or roughly processed materials (e.g., stone and split rail) to manufactured or highly processed materials, e.g. milled wood slats for decorative fencing, or heavy wire chain link security fencing, etc.[0005]In the case of security fencing, there is generally a consideration of the balance between cost and overall security. For example, a conventional chain link fence provides a moderate deterrent effect at reasonable cost, but persons who are ...

AI Technical Summary

Benefits of technology

[0009]The security fence spike is a sharpened spike stamped or otherwise formed of sheet metal to form a triangular cross section for rigidity and strength. The spike is installed along the upper rail of a security fence, preferably within the diameter of a coil of razor wire or concertina wire strung along the upper rail of the fence. The spike may be installed using a brace band for chain link fencing by attaching the spike to the band and then clamping the band to the upper rail of the fence. The spike serves as a rigid element, which maintains its rigid extension even though the otherwise surrounding razor or concertina wire is crushed by covering with a blanket or heavy sheet of material or the like, thus deterring persons from scaling the fence.

Problems solved by technology

Such barbed or razor wire installations significantly increase the difficulty in scaling such a fence, as it is most difficult to cut the security wire along the upper edge of the fence while scaling the fence without additional equipment (ladders, etc.).

Nevertheless, as security fencing has become more difficult to breach, persons wishing to scale or breach such a fence have developed further means and techniques for doing so.

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