Carton Reinforcing Panel Integration for Multipack Strength
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Solution Overview
Problem
Existing carton designs for multipacks lack sufficient reinforcement to securely handle and transport large weights of articles, leading to potential tearing and material wastage, while also requiring minimal material usage for cost and environmental considerations.
Innovation Solution
A carton design featuring a tubular structure with reinforcing panels and handle structures that include apertures and fold lines, allowing for secure closure and handling, formed from a foldable substrate such as paperboard or cardboard, which can be easily assembled into a tubular shape with sequential folding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforced handle structures are added to ensure secure carrying, then the strength and reliability of the carton is improved, but the material usage and device complexity increase
Solution Approach 1:
The handle structure is merged with the end closure panels and reinforcing panels, forming an integrated structure where the handle aperture is defined by the end closure panel and the reinforcing panel provides structural support. This integration allows the handle to be formed from the same material layers without adding separate components, thus improving strength while minimizing additional material usage.
Solution Approach 2:
The handle structure utilizes the third dimension by creating a handle aperture that extends through the depth of the carton structure. The handle is formed by the interaction of panels at different levels (end closure panel, reinforcing panel, and top panel), creating a three-dimensional handle structure that provides strength without requiring excessive material in any single plane.
2Reliability
If multiple panels and reinforcing structures are added to handle large weights, then the reliability of the carton is improved, but the device complexity increases
Solution Approach 1:
The end closure panels are merged with the handle structures, and reinforcing panels are integrated between the top panels and end closure panels. This merging creates a unified structure where multiple functions (closure, handling, and reinforcement) are achieved through integrated panel designs rather than separate components, thereby improving reliability while controlling structural complexity.
Solution Approach 2:
The end closure panels serve multiple functions: they close the ends of the tubular structure, provide handle apertures for carrying, and work with reinforcing panels to strengthen the carton. This multi-functionality reduces the need for separate dedicated components, improving reliability without proportionally increasing device complexity.
3Quantity of substance
If minimal material is used for cost and environmental considerations, then the quantity of substance is reduced, but the strength and security of the carton deteriorates
Solution Approach 1:
The carton structure is segmented into distinct functional panels (top panels, end closure panels, reinforcing panels) that are strategically positioned to provide maximum strength where needed. The reinforcing panels are segmented and placed specifically at the ends of the tubular structure where stress concentration occurs during handling, allowing minimal material to be used overall while maintaining strength at critical locations.
Solution Approach 2:
The reinforcing panels are applied locally at the ends of the tubular structure where maximum strength is required for handling and transport. Rather than uniformly thickening the entire carton, the reinforcement is concentrated at the handle aperture regions and end closure areas, providing necessary strength while minimizing overall material usage.
Data Source
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AI summary
A carton for packaging articles includes a base panel (16), first side panel, (14A/14B) second side panel (18A/18b), first top panel (12) and second top panel (20) forming a tubular structure. The first and second top panels are disposed in face contacting relationship with each other. The carton also includes end closure panels for at least partially closing the ends of the tubular structure. The end closure panels include a first top end closure panel (30A) hinged to one of the first and second top panels while a reinforcing panel (34A) is struck at least in part from the one of the first and second top panels. The reinforcing panel is folded about a hinged connection (40A) so as to be in face contacting relationship with the first top end closure panel.