Polygonal Container Blanks with Relief Cutouts for Perpendicular Walls
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Solution Overview
Problem
Existing polygonal containers with reinforced corners and side walls often have fold lines that are not at a right angle to the bottom panel, which reduces their stacking strength.
Innovation Solution
A blank of sheet material with a specific design featuring elongated relief cutouts and miter fold lines that allow for the formation of perpendicular corner and end walls, enhancing the structural integrity and stacking ability of the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If additional panels are placed in a face-to-face relationship with corner panels or side walls to reinforce the container, then the container strength is improved, but the fold lines connecting the reinforcing panels are not at a right angle to the bottom panel which reduces stacking strength
Solution Approach 1:
The container is divided into multiple panels including outer side panels, inner side panels, corner panels, and end panels. Each panel is segmented with specific fold lines and relief cutouts to allow independent folding and reinforcement while maintaining proper geometric relationships. The segmentation enables the fold lines to be positioned at right angles to the bottom panel, resolving the contradiction between panel reinforcement and stacking strength.
2Ease of manufacture
If the container uses a conventional shape to meet basic strength requirements, then manufacturing is simpler, but the container provides greater resistance to bulge and increased stacking strength with polygonal shapes like octagonal
Solution Approach 1:
The container employs an octagonal polygonal shape with curved corner panels that provide increased resistance to bulging compared to conventional rectangular shapes. The curved geometry distributes stress more effectively while the standardized panel construction maintains ease of manufacture through systematic fold lines and relief cutouts.
Solution Approach 2:
The container uses composite panel structures with outer side panels, inner side panels, and corner panels working together to provide enhanced strength. The multi-layer panel construction with adhesive bonding creates a composite structure that achieves superior strength and stacking characteristics while remaining manufacturable.
Data Source
AI summary
A blank of sheet material for forming a polygonal container is provided. The blank includes a bottom panel, two opposing end panels each extending from an end edge of the bottom panel, two opposing outer side panels each extending from a side edge of the bottom panel, and an inner side panel extending from each top edge of one outer side panel of the two outer side panels. Each inner side panel includes a central portion, a corner portion extending from each side of the central portion, an inner end portion extending from each side of one of the corner portions, and a plurality of elongated relief cutouts. One elongated relief cutout of the plurality of elongated relief cutouts is defined between each corner portion and the central portion and between each inner end portion and an adjacent corner portion.