Container Blank Score-Line Structure for Thin-Wall Denesting
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Solution Overview
Problem
Existing containers struggle with efficient denesting of stacked configurations, particularly when made from thinner materials, as they often require thicker materials or complex forming tools to maintain denesting features effectively.
Innovation Solution
A container blank with a marginal portion featuring score lines positioned at an angle relative to the radius, allowing for the formation of overlapped portions that create protrusions on both interior and exterior surfaces, facilitating denesting by forming stacking lugs and compressed portions for easy separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If containers are made from thinner materials, then material costs are reduced, but denesting effectiveness deteriorates
Solution Approach 1:
The container blank is segmented with score lines that create compressed portions and protrusions, dividing the structure into functional zones that enable denesting without requiring thick materials. The score lines segment the blank into regions that will form stacking lugs and compressed portions, allowing thin material to achieve the necessary mechanical functionality for denesting.
Solution Approach 2:
The score lines are pre-positioned on the blank before forming, creating predetermined compressed portions and protrusions that will automatically form the denesting features during the container forming process. This preliminary positioning ensures that the denesting features are built-in during manufacturing, eliminating the need for post-processing or complex forming tools.
2Reliability
If complex forming tools are used to maintain denesting features, then denesting effectiveness is improved, but device complexity increases
Solution Approach 1:
The score lines are pre-positioned on the blank before forming, creating predetermined compressed portions and protrusions that will automatically form the denesting features during the container forming process. This preliminary positioning ensures that the denesting features are built-in during manufacturing, eliminating the need for post-processing or complex forming tools.
Solution Approach 2:
The container blank is designed to self-form the denesting features during the standard container forming process. The score lines are positioned and angled such that when the blank is formed into a container, the overlapping portions automatically create the compressed portions and protrusions needed for denesting, without requiring specialized forming equipment or additional processing steps.
3Shape
If score lines are positioned at an angle relative to the radius, then protrusions are formed on both interior and exterior surfaces, but manufacturing precision requirements increase
Solution Approach 1:
The score lines are positioned at a specific angle range (15-45 degrees) relative to the radius of the blank, which optimizes the formation of protrusions on both interior and exterior surfaces. This angular parameter, combined with positioning the score lines in the marginal portion of the blank, ensures that the protrusions have sufficient height and structural integrity while remaining compatible with standard forming tolerances.
Data Source
AI summary
A blank for being formed into a container. The blank has a marginal area that includes a plurality of score lines for facilitating forming of the blank into the container. The score lines are positioned to facilitate formation of denesting features of the container. A container formed from the blank has denesting features.