Retractable Wheel Deployment for Luggage
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Solution Overview
Problem
Existing wheel deployment systems for luggage are bulky, prone to damage, difficult to adapt to existing luggage, and fail to provide independent wheel deployment, leading to frustration during handling and storage, especially when trying to fit in overhead bins.
Innovation Solution
A retractable wheel assembly with a bracing member, pivotally coupled wheeled arm, deployment hub, and cable mechanism, combined with a telescopic handle assembly and shuttle system that allows for secure and independent wheel deployment and retraction, minimizing exposure and protecting the wheels from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wheels are retracted into the luggage body, then wheels are protected from damage during handling, but the mechanism becomes bulky and complex
Solution Approach 1:
The wheel assembly is nested within the luggage body structure, with the wheel holder positioned inside the main compartment. The wheel can rotate between a retracted position (nested within the luggage) and a deployed position (extending outward), allowing protection during handling while maintaining a compact form factor without requiring bulky external mechanisms
Solution Approach 2:
The wheel assembly is designed with dynamic movement capability, allowing the wheel holder to rotate between retracted and deployed positions. This dynamic configuration enables the wheel to be protected when not in use while being easily accessible when needed, eliminating the need for complex fixed protective structures
2Reliability
If wheels are retracted, then wheels are protected from damage, but independent wheel deployment is not achieved, causing handling frustration
Solution Approach 1:
The wheel system is segmented into four independently controllable wheel holders, each capable of being deployed or retracted separately. This segmentation allows selective deployment of wheels based on operational needs, enabling independent control that simplifies handling and eliminates frustration associated with simultaneous deployment of all wheels
Solution Approach 2:
Each wheel holder is equipped with its own motor-driven actuation mechanism, allowing individual wheels to be deployed or retracted independently without requiring manual intervention or complex coordinated mechanisms. The system serves itself by automatically controlling each wheel's position based on operational requirements
3Ease of operation
If a separate luggage carrier with wheels is used, then handling is improved, but the wheel assemblies are exposed to damage during airline handling
Solution Approach 1:
The wheel holders are nested within the luggage body structure, positioned inside the main compartment rather than extending externally. This nested configuration protects the wheels from external damage during airline handling while still allowing them to be deployed when needed for mobility, eliminating the vulnerability of externally mounted wheels on separate carriers
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a cost-effective, compact, and durable wheel deployment system that protects wheels from damage, enhances luggage mobility, and allows for efficient storage and handling, including fitting in overhead bins without causing damage or frustration.
Implementation Method 1
A cable may be operationally coupled to the deployment hub and wound there about, such that pulling the cable causes rotation of the deployment hub
Implementation Method 2
A biased assembly may be operationally coupled to the wheeled arm and may be configured to bias the wheeled arm in a retracted mode
Implementation Method 3
The wheeled arm may be pivotally coupled to the side panel and may be sized and positioned such that the wheeled arm rotates through the aperture of the front panel
Data Source
AI summary
A wheel deployment apparatus having a retractable wheel assembly. The wheel deployment apparatus includes a deployment cable functionally coupled to and extending from the wheel assembly. The apparatus includes a retractable handle assembly having a primary tube telescopically nested with a secondary tube. The wheel deployment apparatus includes a shuttle slidably coupled between the primary tube and the secondary tube and coupled to the deployment cable through a slot in the retractable handle assembly. The wheel deployment apparatus includes a shuttle cover functionally disposed over the slot having a hole through which the deployment cable extends.