Container having sidewall with ring-shaped shaping
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Solution Overview
Problem
Conventional paper cups lack rigidity, making them unstable, especially at the upper edge, and require thicker materials to maintain stability, which is inefficient.
Innovation Solution
The introduction of embossments or compressions in the sidewall of the cup, which can be inwardly or outwardly directed, increases the cup's rigidity and resistance to deformation, allowing for the use of thinner materials while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If thicker material is used to increase rigidity, then the cup becomes more stable and resistant to deformation, but the amount of material increases and manufacturing cost rises
Solution Approach 1:
The patent applies curved embossments with rounded profiles rather than sharp angular features. The embossments have a curvature radius of 0.5-2mm, creating a smooth rounded shape that effectively distributes stress and increases rigidity. This curved geometry allows the sidewall to resist deformation more efficiently without requiring additional material thickness.
Solution Approach 2:
The patent transitions from a flat two-dimensional sidewall to a three-dimensional structure by adding embossments that extend in the radial dimension. The embossments create protrusions with specific height (0.5-3mm) and curvature radius, adding dimensional complexity that significantly enhances structural rigidity while using the same material quantity.
2Stability of the object's composition
If material thickness is increased to prevent crushing, then the cup gains stability, but the cup becomes heavier and less efficient
Solution Approach 1:
The rounded embossment profiles with curvature radius of 0.5-2mm create efficient stress distribution patterns that enhance stability. The curved geometry naturally resists crushing forces by distributing loads across the embossed features, achieving enhanced stability without increasing material density or weight.
Solution Approach 2:
The embossments are strategically positioned at specific locations on the sidewall where structural support is most needed. By concentrating reinforcing features at critical locations rather than uniformly thickening the entire sidewall, the cup achieves enhanced stability while minimizing additional weight.
3Strength
If embossments are added to increase rigidity, then the cup resists deformation better, but the manufacturing process becomes more complex
Solution Approach 1:
The embossments are formed during the paper cup manufacturing process itself, integrating the reinforcement features into the forming stage. By creating the embossed patterns while the paper is still pliable during manufacturing, the process adds minimal complexity compared to post-manufacturing reinforcement methods.
Solution Approach 2:
The patent specifies optimized parameter ranges for the embossments (height 0.5-3mm, curvature radius 0.5-2mm) that balance rigidity enhancement with manufacturability. These parameter ranges ensure the embossments provide sufficient reinforcement while remaining feasible to create using standard paper cup forming equipment.
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 a cup with enhanced rigidity and insulation properties, preventing crushing and improving handling, while allowing for the use of less material, and includes a coating for moisture resistance and easy assembly.
Implementation Method 1
the surfaces of the parts of the container that are subjected to a liquid and/or vapor are preferably provided with means, especially a coating, an impregnation, a film or the like which makes these parts at least temporarily resistant against for example humidity, water, aqueous solutions, oil and/or fat
Data Source
AI summary
A cup having a bottom and a sidewall attached to the bottom, wherein the sidewall preferably comprises a rolled rim at its upper edge opposite to the bottom, wherein the sidewall comprises a single layer or a plurality of layers, wherein at least one of the layers is produced from a paper or carton material, wherein at least one shaping is shaped into at least one of the layers of the sidewall, wherein the shaping is at least partially ring-shaped, wherein the shaping extends at least partially over the perimeter of the sidewall, wherein the shaping is inwardly or outwardly directed, wherein the shaping is compressed in height such that an edge of the shaping touches an opposite segment of the shaping and/or that both edges of the shaping touch each other and are joined together.