Reclosable Wraparound Case with Interlocking Flaps
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Solution Overview
Problem
Existing packaging solutions, such as wrap-around boxes, lose structural integrity when opened and cannot be reclosed without adhesives or fasteners, while reusable boxes like RSCs and bliss boxes compromise on manufacturing speed and cost efficiency.
Innovation Solution
A wraparound case design featuring a blank with hinged panels and flaps that allows for direct wrapping and reclosure without adhesives, combining the benefits of RSCs and wrap-around boxes by maintaining structural integrity and enabling easy reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wrap-around boxes are used for direct wrapping and manufacturing, then manufacturing speed and cost efficiency are improved, but structural integrity is lost upon opening and reclosure is impossible without adhesives or fasteners
Solution Approach 1:
The box is divided into a base portion and a closure panel that can be selectively separated. The closure panel is detachably connected to the base portion through complementary features (protrusions and recesses) that allow the box to be opened and reclosed multiple times while maintaining structural integrity, eliminating the need for adhesives or fasteners.
Solution Approach 2:
The closure panel and base portion are designed with specific local features (complementary geometric shapes, protrusions, and recesses) at the joining interface. These localized structural qualities enable reversible connection that maintains overall box integrity while allowing controlled opening and reclosure operations.
2Reliability
If reusable boxes like RSCs and bliss boxes are used, then reclosability and stacking strength are improved, but manufacturing complexity and cost increase
Solution Approach 1:
The box structure is segmented into a base portion and a closure panel that can be separately manufactured and then assembled through simple interlocking features. This segmentation enables reclosability while keeping the manufacturing process relatively simple, as the components can be produced using standard box-making equipment and joined through straightforward assembly operations.
Solution Approach 2:
The design modifies the structural parameters of the box by incorporating selective separability features in the closure panel. These parameter changes (detachable connections with complementary features) enable reclosability without significantly increasing manufacturing complexity, as the features can be integrated into existing box-forming processes.
3Ease of operation
If wrap-around boxes are opened, then access to contents is enabled, but structural integrity is significantly compromised and the box cannot be reclosed
Solution Approach 1:
The box is designed with a separable closure panel that can be detached from the base portion. This segmentation allows the closure panel to be opened for access to contents while the base portion maintains its structural integrity. The closure panel can then be reclosed and reattached, preserving the box's overall structure for reuse and restacking.
Solution Approach 2:
The closure panel is designed to be dynamically separable and reattachable to the base portion. This dynamic connection allows the box to transition between closed and open states while maintaining structural integrity in both states, enabling multiple opening and closing cycles without compromising the box's strength or usability.
Data Source
AI summary
A wraparound case includes a first blank component having no more than three panels including a closure panel, a first side panel and a second side panel and a second blank component includes a base panel portion having a first edge portion and a second edge portion, a third side panel, a fourth side panel, a first flap extending from the third side panel and a second flap extending from the fourth side panel. The first blank component and the second blank component are directly wrapable about a load with the third side panel being joinable to the first and second side panels and the first edge of the closure panel and the fourth side panel being joinable to the first and second side panels and the second edge of the closure panel. The first flap, the second flap and the base panel portion forming exactly one reclosable face.