Blow-Molded Container Support Ring with Longitudinal Recesses
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Solution Overview
Problem
Blow-molded containers with hollow support rings lack stability, making them challenging to transport, especially for light plastic containers, as they are prone to instability and require additional support during handling and transportation.
Innovation Solution
A blow-molded container design featuring a support ring with recesses extending from the edge towards the neck, providing stability and allowing for efficient water drainage, while being produced entirely by blow molding, including the neck and body, using plastics like HDPE or PP, and optionally incorporating fastening means for a cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the support ring is produced by blow molding as a hollow structure, then manufacturing complexity is reduced and production efficiency is improved, but stability and strength of the support ring deteriorate
Solution Approach 1:
The support ring is divided into multiple segments by introducing recesses that extend from the outer edge toward the inner edge. These recesses create longitudinal divisions in the ring structure, transforming a single hollow cylinder into segmented sections that are interconnected. This segmentation allows the structure to maintain rigidity while being formed through blow molding processes, resolving the contradiction between manufacturing simplicity and structural stability.
Solution Approach 2:
The recesses are strategically positioned and dimensioned to create local structural variations within the support ring. By controlling the depth, width, and distribution of these recesses, the patent achieves enhanced local stiffness and load distribution without requiring complete solidification of the entire ring structure. This local quality modification allows the blow-molded hollow ring to achieve stability comparable to or exceeding solid rings in specific application scenarios.
2Stability of the object's composition
If the support ring is solid, then stability and strength are improved, but manufacturing complexity increases and production efficiency decreases
Solution Approach 1:
Instead of manufacturing a solid support ring that would require complex multi-step molding or assembly processes, the patent uses segmentation through recesses to achieve structural integrity. The recesses create a design that can be formed in a single blow molding operation, significantly improving production efficiency while maintaining the stability needed for container handling and transport.
3Quantity of substance
If the support ring is hollow and solid-walled, then material usage is reduced, but stability deteriorates
Solution Approach 1:
The patent applies local quality modification by introducing recesses at specific locations within the support ring structure. These recesses create zones of varying wall thickness and structural density, concentrating material where strength is needed while maintaining material efficiency. The recesses extend longitudinally through the ring, creating a pattern that enhances bending resistance and load distribution without requiring uniform thickening of the entire structure, thus preserving material efficiency while improving stability.
Data Source
AI summary
The invention relates to a blow-molded container comprising a body and a neck, the neck being provided with an outlet and a blow-molded support ring. The support ring has recesses along its entire height that extends substantially in the longitudinal direction of the neck; said recesses extend from the edge of the support ring in the direction of the neck, across the entire width of the support ring, all the way to the neck.