Plastic Container Stiffening Ribs for Static Stability
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Solution Overview
Problem
Conventional no-label plastic bottles with large, smooth surfaces lack optimal static properties under pressure loads, leading to poor stability and increased material usage.
Innovation Solution
Incorporating non-continuous display surfaces with stiffening elements like ribs and grooves into the container wall, which are formed during the blow molding process using embossing sections on the blow mold parts, allowing for material savings and improved stability without the need for labels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a label is applied on a large, smooth container surface, then container information can be displayed, but the container has poor static properties and stability under pressure loads
Solution Approach 1:
The patent applies local quality by creating stiffening regions with specific wall thickness variations at strategic locations on the container. These localized structural modifications (thickened ribs and thinned areas) provide enhanced stability under pressure loads while maintaining overall container functionality and information display capabilities.
2Loss of substance
If the container wall is made thinner to save material, then material consumption is reduced, but the container loses static stability and strength
Solution Approach 1:
The patent implements local quality by creating a non-uniform wall thickness distribution with stiffening regions (thickened areas forming ribs) and thinned areas. This localized structural differentiation allows the container to maintain sufficient strength and stability in critical regions while reducing material consumption in non-critical areas, achieving optimal material efficiency.
Solution Approach 2:
The patent applies segmentation by dividing the container wall into distinct functional zones: stiffening regions with increased wall thickness that form structural ribs, and thinned regions with reduced wall thickness. This segmentation allows different parts of the container to serve different functions - structural support where needed and material savings where not needed.
3Loss of information
If a continuous display surface is used on no-label bottles, then information can be displayed, but the container requires more material and has increased weight
Solution Approach 1:
The patent applies segmentation by creating a non-continuous display surface interrupted by stiffening regions. The display areas are segmented and positioned between the stiffening ribs, allowing information to be displayed while the rib structures provide structural support and reduce overall material usage, thereby reducing container weight.
Solution Approach 2:
The patent implements local quality by creating specific wall thickness variations that form both display surfaces and structural elements. The stiffening regions with different wall thicknesses serve dual purposes: providing structural stability and creating the non-continuous display pattern, eliminating the need for a continuous, material-intensive display surface.
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 enables the production of lightweight, stable no-label bottles with enhanced static properties and simplified recycling by eliminating the need for label removal during the recycling process, reducing material and energy consumption.
Implementation Method 1
the plastic preforms are formed into the plastic containers by the application of a flowable medium
Implementation Method 2
at least one inner surface of the blow mold parts facing the plastic preform has at least one embossing section in the form of at least one raised surface portion and/or one surface depression on the inner surface for forming at least one raised wall portion or at least one wall depression
Data Source
AI summary
A plastic container having a mouth as well as a main body on an outer surface of the plastic container and/or through the outer surface of the plastic container itself using a wall material and in the form of a raised wall portion or a wall depression in the form of a wall structure. Container information is attached, wherein the container information on the finished plastic container replaces a label. The finished produced plastic container is free of a label, and at least one stiffening region is formed on an outer surface of the plastic container and/or is formed by a wall material of the container itself, in particular the stiffening region defines at least two regions on the outer surface which are separated from each other by the at least one stiffening region and the wall structures are distributed on at least these two regions.