Rotatable Structural Bracket for Angled Railing Installation
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Solution Overview
Problem
The installation of angled top rails in railing systems is complex due to the need for precise measurement and cutting on-site, and conventional support joints often leave a negative cosmetic appearance with exposed hardware.
Innovation Solution
A rotatable structural bracket with a top plate and a rotatable extension that can be configured as a wedge to angle the top plate at any acute angle relative to its horizontal rest position, allowing for easy attachment of the top rail to anchor posts without exposing hardware, and can be produced using materials like ABS filament or sheet metal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional support joints are used for railing system installations, then the top rail can be attached to the posts, but the support joints are left exposed which leaves a negative cosmetic appearance
Solution Approach 1:
The support joint is nested within a cosmetic cover that matches the appearance of the post and rail. The joint mechanism is housed inside a decorative sleeve or cap that conceals it from view, allowing the attachment function to be performed while maintaining a clean, continuous cosmetic appearance of the railing system.
Solution Approach 2:
A cosmetic cover or decorative sleeve acts as an intermediary element between the functional support joint and the visible railing components. This intermediary component hides the mechanical joint while allowing it to perform its attachment function, thus resolving the conflict between structural functionality and aesthetic appearance.
2Manufacturing precision
If conventional support joints require custom measurement and cutting on the job site, then the top rail can be correctly angled for installation, but this adds to the complexity and extends installation time
Solution Approach 1:
The support joint and cosmetic cover are pre-assembled as a complete unit at the factory with precise angle measurements already established. This preliminary assembly eliminates the need for on-site measurement and cutting, allowing installers to simply attach the pre-configured unit to achieve correct angular positioning immediately, thus reducing installation time while maintaining precision.
Solution Approach 2:
The support joint assembly is designed as a universal, multi-functional component that combines the structural attachment function, angular positioning function, and cosmetic covering function into a single pre-assembled unit. This eliminates the need for separate operations of measuring, cutting, and covering, streamlining the installation process.
3Shape
If sleeves or covers are used to cover up support joints, then the cosmetic appearance may be improved, but this requires additional installation steps
Solution Approach 1:
The support joint and cosmetic cover are merged into a single integrated assembly that is pre-configured at the factory. This combination eliminates the need for separate installation steps of attaching the joint and then separately installing the cover, reducing the number of installation steps while maintaining the cosmetic benefit of concealed joints.
Data Source
AI summary
A rotatable structural bracket includes a top plate for placement in a horizontal rest position on an end of a structural section that has an internal void. The rotatable structural bracket also includes a rotatable extension for placement into the internal void of the structural section. The rotatable extension can be configured as a wedge that is rotatable out from the internal void to angle the top plate at any acute angle relative to the horizontal rest position of the top plate. The top plate and the rotatable extension are of single-piece construction, and the rotatable extension rotates relative to the structural section and internal of the structural section. The rotatable extension also encompasses an opening of the internal void at any acute angle.