Security Fence Panel With Variable Depth Rigidifying Channel
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Solution Overview
Problem
Mesh fencing panels face issues with flexibility and the potential for intruders to climb or pry them open due to the formation of footholds and leverage points at the junctions with posts, compromising security and aesthetics.
Innovation Solution
Incorporating rigidifying channels with decreasing depth at the ends, formed through metal deformation or alternative techniques like severing and bending of wires, and using security devices with obstructing sections to prevent footholds and leverage, while maintaining aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a mesh panel with a transverse stiffening formation is used, then the panel rigidity is improved, but footholds are created that enable intruders to climb over the fence
Solution Approach 1:
The channel cross-section varies along its length, being deep in the central portion and shallower at the ends. This local variation in geometry maintains rigidity where needed while eliminating footholds at the ends where the panel meets the post, preventing intruders from gaining leverage.
Solution Approach 2:
Instead of creating a uniform deep channel that provides both rigidity and footholds, the invention inverts the approach by making the channel shallower at the ends and deeper in the center, reversing the typical expectation of uniform structure to simultaneously achieve rigidity and security.
2Reliability
If the mesh panel is made flexible to resist climbing, then security is improved, but the panel becomes more prone to flexure and requires additional stiffening
Solution Approach 1:
The variable depth channel provides localized rigidity in the central portion of the panel where climbing attempts are most likely, while allowing the ends to remain more flexible for secure attachment to posts without creating footholds.
3Stability of the object's composition
If the channel depth is constant throughout, then maximum rigidity is achieved, but deep footholds are created at the post junctions
Solution Approach 1:
The channel cross-section is deliberately varied along its length, being deep in the central portion to provide rigidity and shallower at the ends to eliminate footholds, optimizing both structural and security functions in different locations.
Solution Approach 2:
The channel depth parameter is changed along the length of the channel, transitioning from deep in the center to shallower at the ends, allowing the same structure to provide both rigidity and prevent foothold formation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances the security of mesh fencing by eliminating footholds and leverage points, making it more difficult for intruders to climb or pry open the panels, while maintaining visibility and aesthetic appeal.
Implementation Method 1
The rigidifying channel may be formed by deforming the mesh in a suitable metal working process e.g. by means of a press
Data Source
AI summary
A fence panel which is made from mesh material and which includes at least one rigidifying channel which, in a region adjacent a respective end of the channel is of decreasing depth.