Modular Transport Container with Interlocking Bead and Groove

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Solution Overview

Problem

Existing transport containers made from lightweight panels face issues of high waste generation, difficulty in repair, and instability due to thick materials, which increase weight and reduce the capacity for contents, while also being non-stackable and prone to water ingress.

Innovation Solution

The design features a linear edge at the lower end of the side wall with an upwardly curved channel and bead for interlocking stability, combined with metallic reinforcement and modular assembly, allowing for improved stability, reduced waste, and ease of repair and recycling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If thick material is used to increase stability, then stability is improved, but weight increases and capacity for contents decreases

Engineering Contradiction:
ImprovestabilityVSAvoidweight
Core Design Contradiction:
Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The transport container is divided into modular components (base, walls, lids) that can be assembled from thinner materials. The walls themselves are segmented into front and rear sections that can be reinforced selectively at critical points rather than requiring uniform thickness throughout, achieving stability with reduced overall material usage and weight.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The container combines different materials strategically - using thicker or reinforced material only where structural stability is critical (such as corner reinforcements and base structures) while employing thinner lightweight materials for non-critical areas. This composite approach maintains stability while minimizing overall weight.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If one-piece construction is used to simplify manufacturing, then manufacturing is easier, but waste increases and repairability decreases

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidwaste
Core Design Contradiction:
Ease of manufactureVSLoss of substance

Solution Approach 1:

The container is constructed from separate modular components (base, front wall, rear wall, lids) rather than as a single one-piece structure. This segmentation allows each component to be optimized independently, reduces material waste through precise cutting and nesting, and enables replacement of only damaged parts rather than the entire container.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular design enables selective replacement of damaged components while retaining intact parts. Instead of discarding the entire container when one part is damaged, individual components can be recovered and reused, significantly reducing waste and extending the overall service life of the container system.

Inventive Principle:
Principle #34Discarding and recovering

3Ease of manufacture

If one-piece construction is used to simplify manufacturing, then manufacturing is easier, but repairability decreases

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidrepairability
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The container is constructed from separate modular components (base, front wall, rear wall, lids) rather than as a single one-piece structure. This segmentation allows each component to be optimized independently, reduces material waste through precise cutting and nesting, and enables replacement of only damaged parts rather than the entire container.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection elements between components are designed to be detachable and reconfigurable, allowing the container to transition between assembled and disassembled states. This dynamic design facilitates easy repair by enabling removal of damaged components and attachment of replacements without requiring specialized tools or complex procedures.

Inventive Principle:
Principle #15Dynamics

4Ease of manufacture

If conventional wall design is used, then manufacturing is simpler, but stackability and load-bearing capacity are reduced

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidstackability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The wall design incorporates asymmetric features with different thicknesses and reinforcement patterns at the front and rear walls. The rear wall includes a recessed region and specific reinforcement structures that interlock with corresponding features on stacked containers, providing enhanced stackability and load-bearing capacity while maintaining manufacturing simplicity through standardized components.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The connection between stacked containers utilizes a three-dimensional interlocking system involving recesses, protrusions, and angled reinforcement elements that distribute loads across multiple dimensions. This dimensional approach to stacking enhances stability and load capacity without requiring uniformly thick walls throughout the entire container structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2792607B1Transport container made of lightweight elements
Publication Date: 2016.06.15 STEINER PETER
  • EP2792607B1 patent drawingFigure 1

AI summary

The invention relates to a transport container made of lightweight panels, with a base and walls standing upright around it. To make this container more cost-effective, stable, and easier to repair, it is proposed that the walls (2, 3) have at their lower end a tab (4) extending along the edge (5) of the walls (2, 3) and angled towards the base (1), which is to be connected to the base (1), wherein there is an upwardly curved groove (6) between the angled tab (4) and the edge (5), and that the walls (2, 3) have at their upper end an upwardly curved bead (7) which has a shape corresponding to the groove (6) at the lower end of the walls (2, 3). Furthermore, such a modularly constructed transport container can be provided with a concealed frame made of metal tubes to achieve greater stability.