Modular Lift Platform Assembly for Flexible Wheelchair Access
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Solution Overview
Problem
Existing wheelchair lifts are custom-manufactured for specific installations, making them inflexible and costly, and they lack standardization due to varying entry and exit directions, which complicates installation and compliance with safety regulations.
Innovation Solution
A modular customizable lift system comprising a base platform and interchangeable platform extension assemblies, allowing for easy customization to fit any installation by combining base platforms with pre-manufactured extension assemblies to achieve desired dimensions and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lifts are custom manufactured for each installation, then the lift can be configured to match the specific direction of entry and exit, but the manufacturing cost and complexity increase
Solution Approach 1:
The lift platform is divided into a base platform and multiple interchangeable extension assemblies that can be attached to different sides. This segmentation allows standardization of core components while providing flexibility through modular additions, resolving the contradiction between custom configuration and manufacturing cost.
Solution Approach 2:
The base platform is designed with universal attachment points that can accommodate extension assemblies on any side (front, back, left, right). This universal design allows the same base platform to serve multiple configuration purposes, reducing the need for completely custom-manufactured lifts for different entry/exit directions.
2Adaptability or versatility
If lifts are custom manufactured for each installation, then the specific dimensional requirements can be met, but the installation time and complexity increase
Solution Approach 1:
The platform is segmented into a base unit and separate extension assemblies that can be independently manufactured and then easily assembled on-site. This reduces installation complexity compared to installing a completely custom-manufactured platform, while still achieving the required dimensions.
Solution Approach 2:
The extension assemblies are pre-manufactured with standardized connection interfaces that match the base platform. This preliminary preparation of components with compatible interfaces simplifies the on-site assembly process, reducing installation time and complexity while maintaining dimensional flexibility.
3Reliability
If lifts are custom manufactured, then compliance with specific safety regulations can be ensured, but the standardization and ease of maintenance decrease
Solution Approach 1:
The lift system is segmented into a standardized base platform and configurable extension assemblies. The standardized base can be certified for safety compliance once, while extensions are added modularly. This maintains reliability through proven standardized components while allowing customization for specific installation requirements.
Solution Approach 2:
The standardized base platform with universal attachment mechanisms can serve multiple configuration purposes while maintaining its certified safety features. This universal design ensures that core safety-compliant components remain consistent across different installations, improving standardization and ease of maintenance.
Data Source
AI summary
A modular lift system includes a lifting tower comprising a motor and drive components, for supporting, lifting and lowering a lift platform formed from a base platform which has a control wall side, a side opposite the control wall side, and a left side and a right side, and at least two platform extension assemblies configured to attach to one of the opposite side, left side and/or right side of the base platform.