Article Carrier Aperture Geometry for Stronger Low-Material Retention
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Solution Overview
Problem
Existing cartons used for packaging articles require materials that are not optimized for minimal material usage, strength, and secure retention of heavy loads, often leading to material wastage and potential tearing during use.
Innovation Solution
The design of article carriers with apertures featuring varying radii of curvature and strategically placed cutaways, such as major and minor cutaways, to distribute stress and enhance retention, reducing material usage while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional cartons are designed to hold heavy loads, then strength is improved, but material usage increases
Solution Approach 1:
The patent applies different radii of curvature to different portions of the aperture perimeter. The first load bearing edge has a first radius of curvature while the second load bearing edge has a second radius of curvature, creating local variations in structural properties to optimize both strength and material efficiency
Solution Approach 2:
The aperture perimeter is divided into multiple load bearing edges with different curvature characteristics, and cutaways are introduced to further segment the structure, allowing each segment to be optimized for its specific functional requirements
2Quantity of substance
If cartons are made from minimal material, then material wastage is reduced, but strength deteriorates
Solution Approach 1:
The patent changes the geometric parameters of the aperture by introducing varying radii of curvature and strategic cutaways, which modifies the stress distribution pattern to achieve higher strength with minimal material
Solution Approach 2:
The patent employs curved load bearing edges with different radii of curvature instead of straight edges, which improves stress distribution and structural strength while using minimal material
3Ease of manufacture
If simple aperture design is used, then manufacturing is easier, but article retention deteriorates
Solution Approach 1:
The aperture is segmented into multiple load bearing edges with different curvature characteristics, each contributing to secure article retention while remaining manufacturable through standard forming processes
Solution Approach 2:
The patent introduces asymmetric curvature characteristics with different radii at different portions of the aperture perimeter, creating an asymmetric structure that enhances article retention while maintaining manufacturing feasibility
4Ease of manufacture
If uniform curvature is used throughout aperture perimeter, then manufacturing is simpler, but stress distribution deteriorates
Solution Approach 1:
The patent introduces local variations in curvature radius at different portions of the aperture perimeter, with the first load bearing edge having a different radius than the second load bearing edge, which optimizes stress distribution while remaining manufacturable
Solution Approach 2:
The patent employs varying curvature radii throughout the aperture perimeter instead of uniform curvature, which improves stress distribution and structural performance while maintaining ease of manufacture
Data Source
AI summary
Aspects of the disclosure relate to an article carrier for packaging one or more articles and a blank for forming the carrier. The carrier comprises a main panel having one or more article retention structures for receiving and securing the main panel to a respective article. The article retention structures each comprise a perimeter. The perimeter is interrupted by at least one major cutaway in the form of a notch or recess, and at least one minor cutaway in the form of a notch or recess, wherein the at least one major cutaway comprises a first angular dimension and the at least one minor cutaway comprises a second angular dimension, the first angular dimension being greater in magnitude than the second angular dimension.