Railing Assembly Sloped Terrain Adaptability
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Solution Overview
Problem
Traditional railing assemblies lack the ability to maintain picket to top rail angles on sloped terrain, requiring complex multi-component systems for adjustment and stability, while also exposing fasteners and allowing contaminants into sliding interfaces.
Innovation Solution
A railing assembly with a top rail subassembly that slides relative to a hidden inner rail, featuring a bottom rail that covers the top rail and includes stiffeners for structural stability, allowing quick installation and disassembly, and using extrusion processes for fabrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional railing assemblies use fixed top rails, then manufacturing is simple, but adaptability to sloped terrain is poor
Solution Approach 1:
The patent implements a dynamic adjustment mechanism that allows the top rail to be positioned at multiple angles relative to the bottom rail. The adjustable top rail assembly includes a top rail, an intermediate rail, and adjustment mechanisms that enable the system to adapt to various terrain slopes while maintaining structural integrity and picket alignment.
2Shape
If fasteners are exposed for structural attachment, then assembly is simple, but aesthetic quality deteriorates
Solution Approach 1:
The patent extracts the fasteners from visible positions and relocates them to hidden positions within the rail structure. The adjustment mechanisms and attachment fasteners are positioned within channels or recesses of the rails, concealing them from external view while maintaining their structural function for assembling and adjusting the railing components.
3Ease of operation
If sliding interfaces are exposed, then adjustment is easy, but contamination resistance is poor
Solution Approach 1:
The patent uses the rail components themselves as protective enclosures for the sliding interfaces. The top rail, intermediate rail, and bottom rail are configured with channels and recesses that enclose the adjustment mechanisms and sliding interfaces, protecting them from contaminants while allowing the necessary movement and adjustment operations.
4Adaptability or versatility
If multi-component systems are used for angle adjustment, then adaptability improves, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated rail assemblies. The top rail assembly combines the top rail, intermediate rail, and adjustment mechanisms into a unified structure. The intermediate rail serves both as a structural connector and as part of the adjustment mechanism, reducing the number of separate components while maintaining angle adjustment capability.
Data Source
AI summary
An improved railing assembly is comprised of a plurality of pickets, a top rail, an inner rail and a bottom rail. The inner rail is pivotally attached to the pickets with fasteners. The fasteners are hidden from view by the top rail. Stiffeners project from the top rail and from the bottom rail. The stiffeners each either interface with another stiffener or a seat on the inner rail to provide rigidity to the assembly. The bottom of the railing assembly is substantially covered by the bottom rail. The angle between the pickets and the top rail is adjustable such that the pickets may be vertically oriented, while the top rail is parallel to a sloped terrain upon which the railing assembly is installed.