Corrugated Container Bulge Control Lines
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Solution Overview
Problem
Combo bins made of corrugated paper board deform excessively when filled with flowable materials due to hydraulic pressures, leading to spouting and increased width, which poses challenges in storage and transportation.
Innovation Solution
Incorporating bulge control scores or lines in the side wall panels, specifically in the largest width panels, to subdivide them into upright sub-panels and control bulging, thereby mitigating spouting and maintaining container shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If combo bins are made with larger panel sizes to reduce the number of panels, then manufacturing complexity is reduced, but the panels become more prone to buckling and spouting under hydraulic pressure
Solution Approach 1:
The patent divides large wall panels into smaller sub-panels by introducing bulge control scores. These scores create predetermined folding lines that segment the panel structure, allowing each sub-panel to better resist hydraulic pressure independently while maintaining the overall panel configuration.
Solution Approach 2:
The patent applies different structural properties to different regions of the panel by creating bulge control scores at specific locations. The scores are positioned to create sub-panels with varying dimensions and stiffness characteristics, optimizing local resistance to buckling where hydraulic pressures are most severe.
2Volume of moving object
If combo bins are elongated to increase capacity, then volume is increased, but the shape deformation and spouting are exacerbated
Solution Approach 1:
The patent introduces bulge control scores that segment the wall panels into multiple sub-panels. This segmentation prevents the entire panel from deforming as a single unit, thereby maintaining the container's overall shape and profile even when elongated for increased capacity.
Solution Approach 2:
The bulge control scores are pre-formed in the panel during manufacturing, creating predetermined folding lines before the container is filled. This preliminary structural preparation ensures that when hydraulic pressure applies, the panel folds along the pre-defined scores rather than deforming unpredictably, maintaining shape stability.
3Ease of manufacture
If no bulge control features are added to maintain structural simplicity, then manufacturing is easier, but the container deforms excessively under hydraulic pressure
Solution Approach 1:
The bulge control scores are incorporated into the panel during the manufacturing process as pre-formed compression lines or creases. This preliminary action creates the necessary structural features without requiring additional components or complex assembly steps, maintaining ease of manufacture while preventing excessive deformation.
Solution Approach 2:
The patent changes the physical parameters of the panel by introducing controlled compression lines that alter the panel's bending stiffness at specific locations. These parameter changes create regions of controlled flexibility that guide deformation along predetermined paths, preventing uncontrolled buckling while maintaining overall structural simplicity.
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 bulge control lines effectively manage the deformation of side walls, reducing the likelihood of spouting and maintaining a more stable shape, even under hydraulic pressure, enhancing handling and storage capabilities.
Implementation Method 1
The term spouting refers to the buckling of one or more side wall panels of the container along a top edge thereof
Implementation Method 2
Combo bins of such flowable materials that contain liquid are subjected to hydraulic pressures from the liquid content in the flowable material
Data Source
AI summary
Wall panels for a corrugated paper board container have bulge control lines formed therein to control the bending of the wall panels as the container is loaded with contents, such as liquid containing contents. The bulge control lines are configured to control the bending of the wall panels to mitigate the possibility of undesirable spouting that makes the containers more difficult to store.