Gate Upright Internal Rail Attachment for Uniform Coating
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Solution Overview
Problem
Current gate manufacturing methods require external welding, which complicates coating and leads to uneven weathering, making it costly and impractical for small manufacturers to achieve uniform coating, and existing attachment methods fail to provide secure connections, resulting in structural integrity issues.
Innovation Solution
A fence gate kit with uprights featuring internal slots and rails that slide in, allowing for glue application on the inner surfaces to prevent 'screeding' and providing secure attachment without external welding, using a combination of glue and optional screws for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If external welding is used to attach rails to uprights, then strong structural connection is achieved, but coating uniformity deteriorates and weathering becomes uneven
Solution Approach 1:
The patent extracts the welding operation from the external surface area and relocates it to the internal area of the upright. The rail is welded to the inner surface of the upright, removing the welding-related coating problems from the external visible surfaces. This allows the external surfaces to be coated uniformly before assembly, while the welding occurs in the hidden internal area where coating uniformity is not critical.
Solution Approach 2:
The patent transitions the welding operation from a two-dimensional external surface operation to a three-dimensional internal space operation. By moving the welding location into the internal cavity of the upright, the process exploits the third dimension (internal space) to resolve the conflict between structural connection requirements and coating quality requirements.
2Manufacturing precision
If gates are pre-coated before assembly, then coating quality is improved, but assembly complexity increases due to welding requirements
Solution Approach 1:
The patent extracts the welding operation from the external visible area and places it internally within the upright structure. This extraction allows pre-coating of external surfaces to proceed without interference from welding operations, maintaining coating quality while simplifying the overall manufacturing process for small manufacturers.
3Manufacturing precision
If internal walls are used for rail attachment, then coating uniformity is maintained, but attachment security may be compromised
Solution Approach 1:
The patent utilizes the curved inner surface of the upright as a reinforcement geometry for the welded attachment. The curvature of the internal surface provides structural reinforcement at the attachment point, ensuring that the rail connection maintains high security and structural integrity despite being located in the internal area away from external visibility.
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
Enables the creation of strong, customizable gates with uniform coating and reduced weathering risks, allowing for cost-effective production and assembly without external welds, while maintaining structural integrity and aesthetic appeal.
Implementation Method 1
The outside surface of this full inner wall can be coated with glue. The rail is inserted into an opening in the gate upright, then rotated such that the side of the rail presses against the glue.
Data Source
AI summary
A gate upright has a hole for a rail and one or more inner walls which can be coated with glue prior to the insertion of the rail. In a preferred embodiment, there are two inner walls, one of which is only a partial inner wall, which allows the user to coat the outside surface of the inner walls with glue, then insert the rail at an angle, to avoid screeding the glue toward the back of the gate upright, then rotate the rail onto the full inner wall, and slide the rail a short distance to lock it behind the partial inner wall. In another preferred embodiment, there is only one full inner wall, and the rail is inserted at an angle, then rotated against the inner wall. Glue beads at intersections between the rail and gate upright form an interlocking bracket for further support.