Wire Fence Post with Pre-drilled Holes for Tensioning
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Solution Overview
Problem
Existing wire fence installation methods require professional skills and are complex due to the need for precise tensioning of horizontal wires and anchoring of posts, making it difficult for novice installers to achieve a flat, evenly stretched surface without additional structural elements like upper bars or cementitious matrices.
Innovation Solution
A method involving horizontal and vertical metal wires with wire tensioning devices and a post design featuring a bottom plate for easier installation, where horizontal wires are thicker for higher tensile strength, and vertical wires are connected via knots for flexibility, allowing for straightforward tensioning and anchoring without cement, enabling a novice to install a wire fence efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If horizontal wires are tensioned to achieve a flat surface, then the aesthetic appearance and functionality of the fence is improved, but the installation complexity and skill requirement increases
Solution Approach 1:
The fence structure is segmented into modular units with standardized components. The post includes pre-positioned holes at specific intervals, allowing horizontal wires to be inserted and tensioned independently at each post location. This segmentation enables novice installers to work on small sections rather than managing the entire fence length simultaneously, reducing installation complexity while maintaining the flat surface requirement.
Solution Approach 2:
The post is prepared in advance with holes drilled at predetermined positions and intervals before the wire installation begins. This preliminary action eliminates the need for installers to measure and mark hole positions during installation, simplifying the tensioning process and reducing the skill level required to achieve a flat, evenly-spaced wire arrangement.
2Strength
If a cementitious matrix is used to anchor the post, then the anchoring strength is improved, but the installation time and complexity increases
Solution Approach 1:
The cementitious matrix is extracted from the anchoring system and replaced with a direct mechanical anchoring method. The post includes a lower portion designed to be driven directly into the ground, with anchoring holes positioned to receive horizontal wires. This eliminates the time-consuming cement pouring and curing process while maintaining secure anchoring through the mechanical interlock of wires in the holes.
Solution Approach 2:
The anchoring system uses simple, inexpensive metal components (holes and wires) instead of expensive cementitious materials. The holes in the post serve as permanent anchoring points that require no additional materials, reducing both material costs and installation time while providing sufficient anchoring strength for residential applications.
3Stability of the object's composition
If an upper bar is added to hang the chain link fence, then the structural stability is improved, but the cost and device complexity increases
Solution Approach 1:
The upper bar is extracted from the fence structure and its function is transferred to the horizontal wires themselves. The horizontal wires are tensioned between posts to provide the necessary structural stability, eliminating the need for a separate upper bar component. This simplifies the overall device while maintaining stability through the tensioned wire system.
Solution Approach 2:
The horizontal wires serve multiple functions: they provide the structural stability previously requiring an upper bar, they act as the fencing barrier itself, and they provide anchoring points for vertical wires. This multi-functionality eliminates the need for separate components like upper bars, reducing device complexity and cost while maintaining structural integrity.
4Ease of operation
If horizontal wires with crimps or undulations are used, then the tensioning problem is partially alleviated, but the manufacturing complexity and aesthetic appearance worsens
Solution Approach 1:
The holes in the post are positioned at the exact final tensioned position of the horizontal wires. During installation, the wires are inserted through the holes and tensioned to eliminate sagging and undulations. This preliminary positioning of holes ensures that once tensioned, the wires maintain a straight, aesthetically pleasing appearance without requiring crimps or intentional undulations.
Solution Approach 2:
The system transitions from using crimped or undulated wires to using straight wires tensioned between fixed points. By changing the installation parameter from pre-formed undulations to post-installation tensioning through pre-positioned holes, the wires achieve both ease of installation and superior aesthetic appearance with a flat, taut surface.
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
This method simplifies the installation of wire fences by allowing novice builders to achieve a flat, evenly stretched surface without professional expertise, reducing costs by eliminating the need for upper bars and cement, while ensuring secure anchoring and aesthetic appearance.
Implementation Method 1
stretching the horizontal wires by means of the tensioning devices
Implementation Method 2
Step f) of driving the post into the ground can be done by exercising force on the bottom plate. The use of the bottom plate as drive plate is much safer and easier than to try and hit the top of the post.
Data Source
AI summary
A method to install a wire fence includes providing horizontal and vertical wires and connecting them to form a wire fence. The method further includes providing a post to form a termination of the wire fence, providing one hole for each horizontal wire in the post, and driving the post into the ground. The method further includes inserting the horizontal wire ends through the holes in the post, attaching wire tensioning devices to some of the horizontal wire ends, and stretching the horizontal wires by the tensioning devices. The method further includes keeping the tensioning devices on the horizontal wire ends. The tensioning devices keep the horizontal wires attached to the pole, and placing a cover plate to the post to cover the tensioning devices and the horizontal wire ends.