Operable Ramp Drive Assembly for Adjustable Step Access
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Solution Overview
Problem
Existing ramps for accessing buildings with steps are either too bulky, detract from aesthetics, or require significant alterations to the architectural setting, and lack adaptability for varying step heights.
Innovation Solution
A modular operable ramp system that can be easily deployed and stowed, featuring a drive assembly and adjustable components to accommodate different step heights, allowing for a compact and aesthetically neutral installation without major alterations to the building environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed ramp is installed to provide accessible transitions, then accessibility is improved, but space consumption increases and aesthetic quality deteriorates
Solution Approach 1:
The ramp is designed as a movable, operable structure that can be deployed when needed and retracted when not in use. The drive assembly mechanically moves the ramp panel between a deployed position (providing accessibility) and a retracted position (minimizing space consumption), transforming a static space-consuming structure into a dynamic solution that only occupies space when functional.
Solution Approach 2:
The ramp panel is designed to nest within or alongside the architectural structure when retracted. The ramp can be stored in a compact configuration that integrates with the building envelope or architectural features, allowing it to occupy minimal space when not in use while still providing full accessibility functionality when deployed.
2Ease of operation
If a fixed ramp is installed to provide accessible transitions, then accessibility is improved, but aesthetic quality deteriorates
Solution Approach 1:
The operable ramp provides aesthetic benefits by being visible only when needed. When retracted, the ramp becomes invisible or blends with the architectural structure, maintaining clean lines and aesthetic quality. When deployed, it provides the necessary accessibility function, creating a dynamic balance between form and function.
Solution Approach 2:
The ramp is extracted from the permanent architectural structure and made into a separate, movable component. This allows the ramp to be removed or retracted when not in use, preventing it from permanently affecting the aesthetic quality of the building while still providing accessibility when needed.
3Area of stationary object
If fold out ramps are used to minimize space, then space consumption is reduced, but deployment area requirements increase
Solution Approach 1:
The ramp uses a controlled mechanical deployment system with a drive assembly that moves the ramp panel along a predetermined path. This controlled movement allows the ramp to deploy in a compact manner within limited clearance areas, unlike traditional fold-out ramps that require large open spaces for deployment. The dynamic control enables deployment in constrained architectural environments.
4Adaptability or versatility
If ramps are recessed into architectural settings to integrate with steps, then integration is improved, but installation complexity increases
Solution Approach 1:
The ramp system is designed with universal mounting capabilities that can accommodate various step heights and architectural configurations. The adjustable mounting system allows the ramp to be integrated into different architectural settings without requiring custom fabrication or complex modifications to the building structure, simplifying installation while maintaining adaptability.
Solution Approach 2:
The ramp system allows for adjustment of key parameters such as ramp length, angle, and mounting position to match different architectural settings. This adjustability enables integration with varying step heights and configurations without requiring complex custom installation procedures, as the ramp can be configured to suit the specific architectural parameters of each installation site.
Data Source
AI summary
An operable ramp is moveable between a stowed position and a deployed position to provide a sloped transition between upper and lower surfaces of an architectural setting. The operable ramp includes a ramp panel and a drive assembly coupled to a first end of the ramp panel so that the drive assembly reciprocates the operable ramp between the stowed position and the deployed position. The drive assembly defines a maximum elevation of the first end of the ramp panel when the operable ramp is in the deployed position and also defines a minimum elevation of the first end of the ramp panel when the operable ramp is in the stowed position. The maximum elevation is selectively adjustable relative to the minimum elevation.