Tapered Transition Ramp for Cable Protector Accessibility

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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 tapered structures that allow for a wider range of approach angles, with removably attachable or integrally formed tapered transition ramps providing a gradual transition between the side ramps and the surface, eliminating the need for conventional side rails.

Engineering Contradictions & Design Principles

VSEngineering 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 angles is restricted

Engineering Contradiction:
ImprovesafetyVSAvoidrange of approach angles
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent replaces symmetric parallel side rails with asymmetric tapered structures that slope downward from the cable protector toward the ground. This asymmetric configuration eliminates the need for users to approach in a straight line, as the tapered surfaces guide users safely down at various angles without requiring collision avoidance with vertical rails.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

Instead of using vertical side rails that extend upward to prevent sliding, the patent inverts the approach by using tapered structures that slope downward from the cable protector level to the ground. This inversion transforms the safety mechanism from blocking upward motion to guiding downward motion, thereby allowing approach from multiple angles while maintaining safety.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If side rails extend at least two inches above the cable protector surface, then prevention of sliding off is improved, but collision risk increases

Engineering Contradiction:
Improveprevention of sliding offVSAvoidcollision risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the traditional side rail concept by replacing upward-extending vertical rails with downward-sloping tapered structures. This inversion eliminates collision risk by removing vertical protrusions that users might strike, while still preventing slides off through the guiding effect of the tapered surfaces that direct users safely to the ground.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent converts the potential harm of steep drop-offs into a beneficial guiding feature by creating tapered surfaces that slope downward. These surfaces transform what could be a dangerous vertical drop into a controlled, gradual descent that guides users safely to the ground while eliminating the need for protective vertical rails that cause collisions.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Device complexity

If conventional parallel side rails are used, then structural simplicity is maintained, but user accessibility is reduced

Engineering Contradiction:
Improvestructural simplicityVSAvoiduser accessibility
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent replaces the simple symmetric parallel rail structure with asymmetric tapered configurations on each side of the cable protector. While this increases geometric complexity, it dramatically improves user accessibility by allowing approach from multiple angles and providing intuitive visual guidance through the sloping surfaces, making the structure more user-friendly despite the added complexity.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS7838772B2Tapered transition ramp for cable protector
Publication Date: 2010.11.23 CHECKERS INDUSTRIAL PRODUCTS LLC
  • US7838772B2 patent drawing
  • US7838772B2 patent drawing
  • US7838772B2 patent drawing

AI summary

An exemplary ramp structure capable of being positioned over at least a portion of a cable protection system comprises a center portion, a first side ramp portion adjacent a side of the center portion, and a first tapered portion adjacent an end of the first side ramp portion. The first tapered portion may be tapered in both a first direction and a second direction that is substantially orthogonal to the first direction. The first tapered portion may be integrally formed with the first side ramp portion and the first side ramp portion may be integrally formed with the center portion. An exemplary cable protection system is also disclosed comprising a first cable protector structured to receive one or more cables, a first side ramp adjacent a side of the first cable protector, and a first tapered structure pivotally attachable to an end of the first side ramp.