Eyewear Case Hang Tab with Curvilinear Fasteners
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Solution Overview
Problem
Existing eyewear packaging systems lack flexibility in display orientation and require tools for hang tab removal, hindering efficient retail display and user convenience.
Innovation Solution
A transparent carrying case with a removable, tool-free hang tab featuring curvilinear fasteners that provide an interference fit with the case, allowing for various orientations and secure attachment, and an optional retention member for added stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional hang tab with ramp and cliff configuration is used, then the hang tab is securely attached to the case, but the hang tab requires tools for removal and is difficult for users to remove without tools
Solution Approach 1:
The patent applies curvilinear configuration to the fastener prongs, replacing traditional ramp and cliff configurations with curved surfaces that enable tool-free removal through elastic deformation. The curvilinear shape allows the prongs to flex during insertion and removal while maintaining secure attachment during display.
Solution Approach 2:
The patent changes the physical parameters of the fastener material and geometry to enable elastic compression and springing behavior. The prongs are designed with specific dimensional parameters that allow them to elastically compress during insertion and spring apart during removal, transitioning the attachment mechanism from permanent to reversible.
2Ease of manufacture
If the case is made transparent, then consumers can easily identify eyewear inside without opening the case, but the structural integrity and security of the case may be compromised
Solution Approach 1:
The patent employs transparent materials that combine optical transparency with sufficient mechanical strength. The case material is selected to provide both visibility for consumers and structural integrity for protection, utilizing composite or engineered transparent materials that satisfy both requirements simultaneously.
3Adaptability or versatility
If multiple mounting points are provided for the hang tab, then the case can be displayed in various orientations, but the device complexity increases
Solution Approach 1:
The patent implements mounting points and fasteners that serve multiple functions: they provide secure attachment during display, enable tool-free removal by users, and accommodate various display orientations. The same fastener structure performs attachment, orientation adjustment, and user removal functions.
Solution Approach 2:
The patent divides the attachment system into separate mounting points on the case and corresponding fasteners on the hang tab. This segmentation allows independent optimization of each component and enables flexible configuration for different display orientations without requiring a completely different attachment mechanism.
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
Enables flexible display orientations and easy user removal of the hang tab without tools, enhancing retail display efficiency and user experience while maintaining product security.
Implementation Method 1
The prongs are appropriately sized and selected from an appropriately resilient material to accommodate the interference fit by elastically compressing together and springing apart when the fastener is inserted through the aperture.
Data Source
AI summary
An eyewear case and packaging system is disclosed which includes an improved hang tab which permits the system to by displayed in a number of orientations and is easily removable in a tool-less manner to permit the packaging to be converted into a case. The improved hang tab includes at least one fastener which is dimensioned to be inserted through any one of a plurality of apertures in the case. The fastener is secured to the case via the interior by a retention member.