Shipping Container Diagonal Corner Wall Reinforcement
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Solution Overview
Problem
Conventional Bliss-style shipping containers have weak areas at the corners due to the design of modified corners, which compromises the structural integrity and compression strength, while other designs like Defor™ require more material for enhanced strength.
Innovation Solution
A shipping container design featuring a wrapper blank with horizontal corrugations and end pieces that create a double wall lamination, incorporating diagonal corner panels and reinforcement flaps to enhance compression strength and material efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If diagonal corner panels are added to Bliss-style containers to increase stacking strength, then compression strength is improved, but weak areas are created at the corners where the flanges must be wide to reach past the diagonal panel join
Solution Approach 1:
The container is divided into separate components: a wrapper with diagonal corner panels and separate end pieces with flanges. This segmentation allows the flanges to extend beyond the diagonal panels and be secured to end panels, eliminating the weak areas created by wide flanges needed to reach past diagonal panel joins in conventional designs.
Solution Approach 2:
The flanges are extended in a different dimensional direction (beyond the diagonal panels and secured to end panels) rather than simply widening them. This dimensional change allows the flanges to achieve proper coverage and structural integrity without creating weak areas at the corner joints.
2Strength
If corrugations are oriented vertically to enhance compression strength, then stacking strength is improved, but corrugator width utilization becomes inefficient
Solution Approach 1:
The container structure is segmented into the wrapper with diagonal corner panels and separate end pieces. This segmentation allows the wrapper to use horizontal corrugations for efficient corrugator width utilization while the end pieces provide the necessary compression strength through their flange-and-end-panel construction.
Solution Approach 2:
Different parts of the container have different structural qualities optimized for their specific functions. The wrapper uses horizontal corrugations optimized for material efficiency and manufacturing, while the end pieces with their flange-and-end-panel construction provide localized compression strength at the corners and ends where it is most needed.
Data Source
AI summary
A multi-sided container comprises a bottom wall, a top wall, opposite side walls, opposite end walls, a longitudinal axis and a plurality of diagonal corner walls. At least one of the plurality of diagonal corner walls that is defined by at least one diagonal corner panel and at least one reinforcement flap is overlapping one another. A portion of the bottom wall projects under and beyond a bottom edge of the at least one diagonal corner wall.