Pluggable Rollator Wheel Assembly for Adjustable Track Width
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Solution Overview
Problem
Existing rollators designed for indoor and outdoor use require separate models due to fixed wheel arrangements, leading to space and financial burdens, and lack of adaptability for varying environments.
Innovation Solution
A pluggable wheel assembly that allows wheels to be mounted on both sides of a profile strip, enabling adjustable track width by positioning wheels inward or outward, with a locking mechanism for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rollator is designed with a wide track width for outdoor use, then stability is improved, but maneuverability deteriorates
Solution Approach 1:
The wheel assembly is designed to be movable between different positions relative to the profile strip. The wheel can be mounted on the outer side for outdoor stability or repositioned to the inner side for indoor maneuverability, transforming a static structure into a dynamic, adaptable system that changes configuration based on usage requirements
2Ease of operation
If a rollator is designed with a narrow track width for indoor use, then maneuverability is improved, but stability deteriorates
Solution Approach 1:
The wheel assembly mounting position is made variable rather than fixed. By allowing the wheel to be repositioned from the inner side (for narrow track width and better maneuverability) to the outer side (for wide track width and better stability), the system dynamically adapts to different environmental requirements
3Adaptability or versatility
If separate rollators are used for indoor and outdoor environments, then adaptability is improved, but device complexity increases
Solution Approach 1:
A single rollator frame is designed to accommodate wheel assemblies in multiple positions, enabling one device to perform both indoor and outdoor functions. The universal mounting system allows the same rollator to be adapted to different track width requirements, eliminating the need for separate specialized devices
Solution Approach 2:
The wheel assembly is designed as a separable, modular component that can be independently repositioned. This segmentation allows the wheel to be detached and remounted at different locations on the profile strip, providing versatility without permanently complicating the overall structure
Data Source
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AI summary
A pluggable wheel arrangement for a rollator is described, whereby the individual wheels of the rollator can be swapped around as needed. This allows the driving characteristics to be adapted to the environment in which the rollator is to be used by changing the track width.