Hand Formed Reinforced Polygonal Container Blank
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Solution Overview
Problem
Existing methods for forming reinforced polygonal containers require machinery and adhesives, making them impractical for hand formation and costly for agricultural applications, where a need exists for a solution that allows for easy hand formation with minimal or no adhesive.
Innovation Solution
A blank of sheet material is designed with specific foldover and reinforcing panel assemblies that can be manually folded and locked into a reinforced polygonal container structure without the need for adhesives, utilizing fold lines and hinge tabs to secure the panels in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If machinery and adhesives are used to form reinforced polygonal containers, then the container strength and manufacturing precision are improved, but the device complexity and cost increase, making it impractical for field use
Solution Approach 1:
The container blank is designed with self-forming features including fold lines that guide folding, locking tabs that automatically secure panels, and reinforcing panels that integrate into the structure during hand-folding. The design enables the container to form and reinforce itself without external machinery or adhesives, allowing field deployment while maintaining structural integrity
Solution Approach 2:
The container is divided into multiple separate panels (bottom panel, side panels, end panels, reinforcing panels) connected by fold lines. This segmentation allows each panel to be independently positioned and locked into place during manual assembly, enabling complex reinforced structures to be constructed from simple flat blanks without requiring adhesives or machinery
2Strength
If multiple reinforcing panels are added to meet stacking strength requirements, then the container strength is improved, but the manufacturing complexity and difficulty of hand formation increase
Solution Approach 1:
Multiple reinforcing panels are integrated into a single continuous flat blank design, with all panels and fold lines pre-positioned. This merging allows the entire reinforced container structure to be formed by hand through a sequence of simple folding and locking actions, rather than requiring separate assembly of multiple components or use of adhesives
3Strength
If conventional rectangular or hexagonal shapes are used, then the ease of manufacture is improved, but the container strength and resistance to bulge decrease
Solution Approach 1:
The container uses octagonal or other polygonal shapes with asymmetric panel arrangements that provide superior structural rigidity and resistance to bulging compared to conventional rectangular or hexagonal designs. The asymmetric distribution of reinforcing panels at strategic locations maximizes strength while maintaining hand-formability from flat blanks
Data Source
AI summary
A blank of sheet material for forming a polygonal container includes a bottom panel, two opposing side panels each extending from a side edge of the bottom panel, and two opposing end panels each extending from an end edge of the bottom panel. The blank also includes a foldover panel that is configured to lock the container in at least a partially formed position. The blank further includes a reinforcing panel assembly that includes an outer reinforcing corner panel extending from the first side panel, an outer reinforcing end panel extending from the outer reinforcing corner panel, an inner reinforcing end panel extending from the outer reinforcing end panel, an inner reinforcing corner panel extending from the inner reinforcing end panel, and an inner reinforcing side panel extending from the inner reinforcing corner panel.