Fencepost Design with Alternating Apertures and Concrete Lock
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Solution Overview
Problem
Traditional fencing systems face challenges in accommodating diverse fasteners and efficient component reuse, with wooden fence posts often requiring different materials for fenceposts and gateposts, and the inclusion of granular materials in concrete footings can impede concrete flow, leading to potential voids and reduced anchoring.
Innovation Solution
The design of fenceposts with alternating patterns of fastener apertures and a concrete lock aperture that allows larger granular materials to flow, enabling the use of the same posts for various locations and reducing material complexity and cost by using shared components for fenceposts and gateposts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fence posts are pre-drilled with alternating patterns of different types of fastener apertures, then the adaptability and versatility of the fence post is improved, but the device complexity increases
Solution Approach 1:
The fence post flange is designed with multiple types of fastener apertures (countersunk, straight, and angled) in an alternating pattern, enabling a single fence post to accommodate various fastener types and installation configurations. This multi-functional design allows the same fence post to be used at different locations along the fence with different fastening requirements, eliminating the need for multiple specialized post designs.
2Reliability
If fenceposts and gateposts are made from different parts to accommodate varying load requirements, then the strength and reliability are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The invention introduces a secondary layer with a cross-sectional shape complementary to the first post member, allowing the same basic post design to be adapted for different load requirements. By varying the secondary layer configuration, the post can be optimized for standard fence applications or enhanced for gatepost applications subject to higher loads, maintaining reliability while reducing component variety.
3Strength
If concrete footings include larger granular materials for strength, then the strength and reliability are improved, but the concrete flowability deteriorates
Solution Approach 1:
The concrete footing is segmented into two distinct zones: an upper portion containing larger granular materials for strength and stability, and a lower portion with smaller granular materials that ensure proper concrete flowability and consolidation. This segmentation allows the footing to achieve both high strength from the larger aggregates and proper workability from the smaller aggregates, eliminating flow obstructions while maintaining structural integrity.
Data Source
AI summary
An improved fencing system can include an improved fence posts. Such fence posts can include features for accommodating different types of fasteners for attachment to fence components, such as fence rails. Additionally, some fence posts, such as gateposts, can be formed with one or more pieces of other fenceposts in a fencing system. Some such improved fence posts can include concrete locks.