Corrugated Packaging with Weakened Side Walls
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Solution Overview
Problem
Corrugated cardboard packaging used for heavy goods tends to lose strength and become vulnerable to tearing under heavy loads due to deformation in the upper or middle area, lacking optimal stability and resistance to material destruction.
Innovation Solution
The packaging features n-cornered design with weakened sections in the side wall parts, specifically indented or pinched areas that allow for better deformation without tearing, improving flexibility and stability by distributing load stress effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the packaging is made with uniform thickness and structure throughout, then the manufacturing process is simple, but the packaging becomes vulnerable to tearing under heavy loads due to inability to deform
Solution Approach 1:
The patent applies local quality by creating weakened sections with different properties (reduced thickness, perforations, or score lines) at specific locations in the side wall parts, while maintaining uniform structure in other areas. This allows the packaging to have both simple manufacturing and improved tear resistance, as the weakened sections are precisely where deformation is needed under load.
2Stability of the object's composition
If the side wall parts are firmly connected to the base, then the packaging stability is improved, but the side wall parts become prone to tearing through the base under heavy loads
Solution Approach 1:
The patent applies preliminary action by pre-forming weakened sections in the side wall parts before the packaging is loaded. These weakened sections are strategically positioned to allow controlled deformation and rounding out when the packaging is filled, preventing the side wall parts from tearing through the base while maintaining firm connection for stability.
3Strength
If the packaging material is made thicker and stronger, then the resistance to tearing improves, but the manufacturing cost and material usage increase
Solution Approach 1:
The patent applies parameter changes by modifying local parameters (thickness, density, or structural properties) of the corrugated cardboard in specific weakened sections, rather than increasing the overall material parameters throughout the entire packaging. This allows achieving improved tear resistance with controlled material usage, as the parameter changes are applied only where needed for deformation.
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
The weakened sections in the packaging design enhance its ability to deform without tearing, significantly improving the overall stability and resistance to material destruction, allowing it to withstand heavy loads without compromising structural integrity.
Implementation Method 1
at least one weakened section which promotes the deformation behavior with respect to adjacent areas of the relevant side wall part
Data Source
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AI summary
The invention relates to a packaging, preferably made of corrugated cardboard, with an n-sided plan, wherein n is a positive integer ≥ 3, formed from n interconnected, preferably one-piece, side wall parts (21-28), and a base (11-14; 16) oriented substantially perpendicular to the side wall parts (21-28), wherein at least one, preferably at least n/2, of the side wall parts (21-28) is firmly connected at its lower end section (31-34) facing the base (11-14; 16) with a corresponding retaining tab (11h-18h) of the base (11-14; 16). The packaging is characterized by the fact that in the lower end section (31-34) of at least one firmly connected side wall part (21-28) at least one weakening section (41s-44s) is provided, which promotes the deformation behavior with respect to adjacent areas of the side wall part (21-28) in question.