Tapered Cable Protector Ramp for Accessible Crossing
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Solution Overview
Problem
Conventional cable protectors with parallel side rails restrict the range of approach and movement for users of wheelchairs, walkers, and strollers, as they require users to approach and cross in a straight line to avoid collisions with the rails.
Innovation Solution
A cable protection system featuring a ramp structure with tapered portions that allow users to approach and cross from a wider range of directions, eliminating the need for conventional side rails by providing a smooth, gradual transition between the ramp and the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional parallel side rails are used to prevent users from sliding off, then safety is improved, but the range of approach directions is limited
Solution Approach 1:
Instead of using vertical side rails that protrude upward to prevent users from falling, the invention inverts the approach by using downward-sloping tapered surfaces that guide users safely down to ground level. The protective function is achieved not by blocking with protrusions but by providing a gradual transition path, thus eliminating the constraint on approach angles while maintaining safety.
Solution Approach 2:
The invention applies curved or angled tapered surfaces instead of straight vertical rails. The tapered portions create a smooth transitional surface that naturally guides users down at various angles, replacing the rigid linear structure of conventional side rails with a geometric form that accommodates multiple approach directions.
2Reliability
If conventional side rails extend at least two inches above the surface, then users are prevented from sliding off, but users must approach in a straight line to avoid collision
Solution Approach 1:
Rather than extending protective elements upward to block users, the invention inverts the protective mechanism by sloping surfaces downward. This eliminates the need for users to navigate around protruding rails, as the tapered surfaces themselves become the protective guide that naturally directs users safely to ground level from various angles.
Solution Approach 2:
The invention converts what would traditionally be a hazardous drop-off edge into a beneficial feature by creating a tapered transition surface. The previously harmful vertical drop is transformed into a useful gradual slope that actively guides users safely down, turning the potential danger into the solution that prevents falls while accommodating various approach angles.
3Adaptability or versatility
If tapered portions are used to allow various approach angles, then accessibility is improved, but the structure becomes more complex
Solution Approach 1:
The invention merges the protective function and the transitional function into a single integrated tapered structure. Rather than adding separate components like side rails plus ramps, the tapered portions combine both functions: they protect users from falling off while simultaneously providing the transitional surface for various approach angles, thus reducing overall structural complexity.
Solution Approach 2:
The tapered portions serve multiple functions simultaneously: they act as protective barriers preventing falls, provide gradual transition surfaces for users, and accommodate various approach angles. This multi-functionality eliminates the need for separate specialized components, simplifying the overall structure while achieving multiple objectives.
Data Source
AI summary
An exemplary ramp structure capable of being positioned over at least a portion of a cable protection system comprises first and second center portions, a first side ramp portion adjacent a side of each center portion, and a first tapered portion adjacent an end of the first side ramp portion. The first tapered portion may be tapered in at least two different directions that are substantially orthogonal to each other.