Foldable Storage Container Nesting Stability

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Solution Overview

Problem

Existing storage containers stacked in the folded-down or upright position are prone to relative displacement, leading to instability and a high risk of tipping over during transport, which can cause damage to the containers and their contents.

Innovation Solution

The storage container features hingedly connected side walls that can be folded down, with standing parts and profiles at the bottom construction to facilitate nesting and support for additional containers, preventing relative displacement and enhancing stability, and includes segments that allow for compact folding and increased strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If storage containers are stacked in folded-down or upright position, then compact storage and ease of operation are improved, but stability and resistance to displacement deteriorate

Engineering Contradiction:
Improveease of loading and unloadingVSAvoidstability of stacked containers
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent implements nesting features including uprights extending from the base and recesses in the side walls that allow containers to nest within each other when stacked. The folding side walls create a nested configuration where the upper container fits into the lower container's structural features, providing stability while maintaining compactness.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent introduces vertical dimension elements (uprights extending upward from the base) and horizontal dimension elements (recesses and protrusions on side walls) to create multi-dimensional interlocking. This prevents displacement in multiple directions simultaneously, solving the stability problem while preserving the compact folded-down configuration.

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

2Volume of moving object

If side walls are folded down onto the bottom construction, then compact form for storage is improved, but structural strength and protection deteriorate

Engineering Contradiction:
Improvestorage volume when foldedVSAvoidstructural strength of container
Core Design Contradiction:
Volume of moving objectVSStrength

Solution Approach 1:

The side walls are divided into multiple segments that can fold relative to each other. This segmentation allows the container to collapse into a compact form while the segmented structure itself provides structural reinforcement through the multiple hinge connections and joints between segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The container employs composite structural elements combining rigid base construction with flexible folding side walls. The base construction includes reinforcing uprights and the side walls include internal support segments, creating a composite structure that maintains strength in both folded and unfolded states.

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If standing parts and profiles are added to prevent displacement, then stability is improved, but device complexity increases

Engineering Contradiction:
Improvestability of stacked containersVSAvoidstructural complexity of container
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The uprights and side wall structures serve multiple functions: they provide structural support for the container body, create nesting features for stacked containers, and prevent displacement during transport. This multi-functionality reduces the need for separate stabilization components, thereby limiting the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the stabilization features (uprights and recesses) with the existing structural elements of the container (side walls and base). Rather than adding separate stabilization components, the structural elements themselves are designed to provide both support and anti-displacement functionality, thereby minimizing the increase in device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This design enables a stable stack of storage containers in both upright and folded-down positions, significantly reducing the risk of tipping and damage during transport, making it suitable for use in loading spaces like semitrailers.

Implementation Method 1

side walls are hingedly connected to the bottom construction, wherein the side walls can be folded down onto the bottom construction

Methodology Applied
Scientific EffectHinge mechanism: Hinge

Implementation Method 2

the storage container has standing parts which extend from the bottom construction for the purpose, in the folded-down position of the side walls, of nesting between the standing parts an underside of a further storage container placed on the storage container

Methodology Applied
Scientific EffectGeometric nesting: Nesting

Implementation Method 3

the standing parts comprise profiles with a right-angled progression, wherein the profiles are provided at the position of corner points of the bottom construction. The profiles also increase the strength of the storage container.

Methodology Applied
Scientific EffectGeometric reinforcement: Geometry

Implementation Method 4

the storage container is provided with standing elements extending from a top side of at least two side walls for the purpose, in the standing position of the side walls, of nesting between the standing elements an underside of a further storage container placed on the storage container. Movement of the further storage container in lateral direction is prevented by the standing elements.

Methodology Applied
Scientific EffectGeometric interlocking: Nesting

Data Source

PatentEP1724198B1Container for storage
Publication Date: 2017.08.02 POLYPLASTIC GROUP
  • EP1724198B1 patent drawingFigure 1
  • EP1724198B1 patent drawingFigure 2
  • EP1724198B1 patent drawingFigure 3

AI summary

Storage container (1), comprising a bottom construction (6) and standing side walls (2,3,4,5). The side walls (2,3,4,5) are hingedly connected to the bottom construction (6). The side walls (2,3,4,5) can be folded down onto the bottom construction (6). At least one side wall (3,5) is divided into successive segments (10,11 ;12,13), wherein successive segments (10,11,12,13) are arranged hingedly relative to each other over substantially a whole width of the at least one side wall (3,5). A plurality of storage containers (1) can be stacked onto each other in a stable stack in upright position of the side walls (2,3,4,5) and/or in folded-down position of the side walls (2,3,4,5).