Fence Post Design with Localized Struts for Rigidity
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Solution Overview
Problem
Existing fence post designs fail to balance cost-effectiveness, material efficiency, rigidity, and aesthetic appeal while effectively transmitting horizontal forces and accommodating additional security features like surveillance cameras without increasing weight or visibility of fastenings.
Innovation Solution
The use of flat iron diagonal struts with hook bolt screw connections between horizontal and vertical lattice bars, allowing for flexible attachment points and minimal material usage, combined with adjustable strut density and U-bent corner rods for enhanced stability and appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional lattice posts with diagonal struts are used, then the fence provides sufficient rigidity and strength, but the material consumption and production cost increase
Solution Approach 1:
The patent applies local quality by varying the distribution and density of diagonal struts along the fence post height. Rather than uniform distribution, struts are concentrated in specific zones where structural reinforcement is most needed, optimizing material usage while maintaining overall rigidity. This localized reinforcement approach reduces total material consumption compared to traditional uniform lattice designs.
Solution Approach 2:
The fence post is segmented into multiple sections with different structural characteristics. The diagonal struts are arranged in discrete groups rather than continuous patterns, allowing each segment to be optimized independently. This segmentation enables reduced material usage in less critical areas while maintaining strength where required, resolving the contradiction between overall rigidity and material efficiency.
2Adaptability or versatility
If thicker post walls are used to accommodate standard screw fastenings, then security devices can be mounted, but the post weight increases significantly
Solution Approach 1:
The patent resolves the mounting capability contradiction by transitioning from a single-dimensional solution (increasing wall thickness) to a multi-dimensional approach. Instead of uniformly thickening the post, it creates localized mounting zones with increased thickness only where fastenings are needed, while maintaining thinner walls in other areas. This dimensional differentiation allows security device mounting without significant overall weight increase.
Solution Approach 2:
The post structure implements local quality by providing varied wall thicknesses at different locations. Thicker sections are strategically positioned at mounting points to accommodate standard screw fastenings, while thinner sections are used elsewhere to minimize weight. This localized thickness variation enables adaptability for security devices without the penalty of uniformly increased post weight.
3Ease of manufacture
If the fence post design is simplified for cost-effectiveness, then production cost decreases, but the rigidity in both transverse directions is compromised
Solution Approach 1:
The patent applies segmentation by dividing the fence post into modular sections with standardized components that can be manufactured efficiently. The diagonal strut patterns are segmented into repeatable units, simplifying production while maintaining structural integrity. This modular segmentation reduces manufacturing complexity and cost compared to custom-designed posts, while the careful arrangement of segmented elements preserves rigidity in both transverse directions.
4Ease of operation
If attachment points are fixed at specific positions, then coordination with lattice panels is simplified, but the flexibility to adapt to different panel heights is reduced
Solution Approach 1:
The patent implements dynamics by making the attachment point positions variable rather than fixed. The diagonal struts are arranged to provide multiple potential attachment locations along the post height, allowing the effective attachment position to be dynamically selected based on the specific lattice panel height. This dynamic positioning capability maintains ease of coordination while enabling adaptation to different panel configurations.
Solution Approach 2:
The fence post design achieves universality by incorporating a standardized pattern of diagonal struts that can serve multiple functions across different panel heights. The same strut arrangement provides both structural reinforcement and attachment points for various panel configurations, eliminating the need for custom-designed posts for each height. This multi-functional design simplifies coordination while maintaining adaptability.
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
In a fence consisting of fence posts made of several interconnected rods and mesh panels made of vertical and horizontal bars, the fence posts are formed from four round or rectangular bars (1, 2, 3, 4) which essentially form the vertical post edges, and from flat iron angle brackets (5). To achieve the most rigid arrangement possible with an attractive appearance while using a cost-effective and material-saving manufacturing method, the vertical distribution of the flat iron angle brackets along the fence post is adapted to the vertical spacing of adjacent horizontal bars of the mesh panels. Hook bolts extend between the free ends of the flat iron angle brackets and act on the horizontal bars of the mesh panels, creating mutual bracing in all three spatial directions between the fence posts and the mesh panels.