Reinforced Polygonal Corrugated Container with Transverse Adhesive Bonding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing corrugated cardboard containers lack sufficient structural reinforcement to withstand expansion loads and radial stresses, particularly when containing liquids or dense products, and often require complex production processes or additional materials like plastic or metal for reinforcement, which complicates recycling and increases costs.
Innovation Solution
A reinforced polygonal container design featuring a tubular body formed by rolling and adhering corrugated cardboard with lines of glue transverse to the corrugation channels, creating a multilayer wall with uniform thickness and strength, and a base body with a polygonal base wall that reinforces the container against radial expansion stresses, allowing for easy adaptation of strength based on layer configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If corrugated cardboard is flattened at fold lines to enable folding, then the material can be formed into container shapes, but the thickness and stiffness are reduced, weakening the structure
Solution Approach 1:
The container is divided into modular components: a tubular body made by rolling and adhering corrugated cardboard, and a separate base body. This segmentation eliminates the need for weak fold lines in the walls while maintaining manufacturability through adhesive joining.
Solution Approach 2:
The tubular body is formed by rolling the corrugated cardboard in a different dimension (circular cross-section) rather than folding it flat, preserving the full thickness and stiffness of the corrugated material throughout the wall structure.
2Strength
If additional reinforcement materials like plastic or metal are added to corrugated cardboard containers, then structural strength is improved, but recycling complexity and production costs increase
Solution Approach 1:
The invention changes the structural parameters of the corrugated cardboard itself by forming it into a rolled tubular configuration with specific adhesive bonding patterns, achieving enhanced strength without introducing different materials. The corrugation orientation and layer arrangement are optimized for load-bearing performance.
Solution Approach 2:
The tubular body forms a composite structure through the combination of multiple corrugated cardboard layers bonded with adhesive, creating a reinforced structure that remains entirely within the cardboard material family, ensuring recyclability while achieving the required strength.
3Ease of manufacture
If glue is applied only at the protruding ends of corrugations, then the application process is simplified, but the reinforcement perpendicular to the corrugation is insufficient
Solution Approach 1:
The invention extracts and addresses the specific weakness of radial reinforcement by applying adhesive in a pattern that specifically targets the perpendicular direction to the corrugation, rather than relying solely on the default end-point application method.
Solution Approach 2:
The adhesive application pattern creates local reinforcement zones perpendicular to the corrugation channels where needed for radial strength, while maintaining the overall simplicity of the manufacturing process. The glue is strategically placed to provide exactly where the structural weakness exists.
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 solution provides enhanced structural strength and versatility, enabling the production of containers with varying strengths and costs using the same material and process, while optimizing material usage and simplifying production, and allowing for the container to be lifted from its upper end with the lower end suspended.
Implementation Method 1
a tubular polygonal body with an even number of flat faces numbering more than four defined between corner areas, the tubular polygonal body being formed by a strip of corrugated cardboard at least partially superimposed on and adhered to itself
Implementation Method 2
the corrugated cardboard of the tubular polygonal body includes a corrugated sheet forming channels perpendicular to the polygonal bottom of the base body
Implementation Method 3
A reinforced polygonal container made of glued, i.e., adhered using adhesives, corrugated laminar material
Data Source
AI summary
The invention relates to a polygonal container comprising a tubular polygonal body (10) with an even number of flat faces (11) numbering more than four, which is formed by a strip of corrugated cardboard (19) rolled up at least two full turns and adhered to itself by means of lines of glue (30) transverse to the channels of the corrugated cardboard, forming a multilayer wall (13); a base body (20) defined by a base panel of cut and folded stiff double-faced corrugated cardboard (24) attached around an end portion of the tubular polygonal body (10). The method comprises forming the tubular polygonal body by means of rolling the strip of corrugated cardboard around a polygonal rotary drum (51) and subsequently attaching to a base body (20).