Bobbin Sleeve and Package Blank With Cut-Out Flaps for Stability
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Solution Overview
Problem
Existing bobbins and their packages do not adequately address the criteria of efficient material use, ease of transport, and strong structural stability, while also being easy to erect and hold the reel securely.
Innovation Solution
A package blank designed with foldable side wall panels and inner flaps with cut-outs that form a stable structure for holding a bobbin, allowing it to be erected without adhesives, and a bobbin with a central shaft and foldable sleeve blank that forms a coiled structure for enhanced stability and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a package is designed with traditional box structures, then it provides basic protection, but it fails to securely hold the bobbin and prevent displacement during unwinding
Solution Approach 1:
The package side walls are segmented into outer side wall panels and inner side wall flaps, where the inner flaps with cut-outs specifically engage with the bobbin ends to prevent displacement, while the outer panels provide structural protection. This segmentation allows the package to securely hold the bobbin without requiring a completely complex redesign of the entire package structure.
Solution Approach 2:
The inner side wall flaps are nested within the outer side wall panels, creating a layered structure where the inner flaps with their cut-outs are positioned inside the outer panels. This nesting arrangement allows the package to provide secure bobbin holding through the inner flaps while maintaining a simple overall box-like structure provided by the outer panels.
2Reliability
If a package structure is made more complex to securely hold the bobbin, then bobbin stability improves, but the ease of erection and transport deteriorates
Solution Approach 1:
By dividing the side walls into separate outer panels and inner flaps that can be independently positioned, the package maintains simplicity in erection - the inner flaps are simply placed inside the outer panels to engage with the bobbin, without requiring complex assembly procedures.
Solution Approach 2:
The inner side wall flaps are designed with cut-outs that automatically engage with the bobbin ends when the package is assembled, providing self-aligning and self-securing functionality. This self-service design ensures bobbin stability without requiring complex erection procedures or additional fastening operations.
3Loss of substance
If traditional packaging materials are used, then basic protection is provided, but material efficiency and environmental friendliness are insufficient
Solution Approach 1:
The package utilizes thin, flexible paper-based materials for both the outer side wall panels and inner side wall flaps. These thin film-like structures provide adequate protection and structural integrity while minimizing material consumption, achieving high material efficiency without complicating the manufacturing process.
Solution Approach 2:
The package employs composite construction using paper-based materials for both structural and protective functions. The outer panels and inner flaps are made from the same or similar paper-based materials, creating a homogeneous composite structure that is easy to manufacture from single-material sources while optimizing material efficiency and environmental friendliness.
Data Source
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AI summary
The disclosure relates to a package blank (100) configured to be erected and thereby form a package for holding a bobbin (300), the package blank comprising: a set of side wall panels comprising two side wall panels (101, 103) configured to form two opposing outer side wall panels of the package, wherein each outer side wall panel is fo!dabiy connected to a respective inner side wall bottom flap (104) and a respective inner side wall top flap (106), wherein respective inner side wall bottom flap (104) is configured to form an inner side of a bottom part of respective side wall and is provided with an upwardly facing cut-out (108) configured to receive an associated end portion of a bobbin (300), and wherein the respective inner side wall top flap (106) is configured to form an inner side of a top part of the respective side wall and is provided with a downwardly facing cut-out (110) configured to at least partly cap the associated end portion of said bobbin (300). Also disclosed is a package formed of the package blank, a bobbin and a sleeve blank (400) configured to be folded into a bobbin coil.