Open Container Lateral Offset Side Wall Sections

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Solution Overview

Problem

Existing open containers lack optimal stackability and stability when combined to form a closed container, often resulting in lateral slipping and jamming under load, due to inadequate interlocking mechanisms.

Innovation Solution

The open container design features laterally offset side wall sections that overlap to form a double side wall when combined with another identical container, providing enhanced stability and preventing slipping, with optional features like recesses and hinges for reduced weight and improved visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If simple interlocking projections and recesses are used to connect containers, then the container structure is simple and easy to manufacture, but the stackability and stability are insufficient, causing lateral slipping and jamming under load

Engineering Contradiction:
Improveease of manufactureVSAvoidstackability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The side walls are divided into multiple side wall sections (first, second, third, fourth sections) that are laterally offset from each other. This segmentation allows each section to independently interlock with corresponding sections of the inverted container, distributing the interlocking function across multiple points rather than relying on a single projection-recess mechanism, thereby improving stackability while maintaining manufacturing simplicity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The laterally offset side wall sections are designed to nest within each other when containers are inverted and stacked. The first side wall section of one container nests with the second side wall section of the inverted container, creating a nested interlocking pattern that prevents lateral slipping and enhances stability under stacking loads

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If laterally offset side wall sections are used to form double side walls, then stability and anti-buckling performance are improved, but the container structure becomes more complex

Engineering Contradiction:
ImprovestabilityVSAvoidstructural complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The side walls feature asymmetric lateral offsets where the first, second, third, and fourth side wall sections are positioned at different lateral distances from a reference plane. This asymmetric arrangement creates complementary interlocking profiles between the container and its inverted counterpart, enabling stable double wall formation without requiring complex symmetric mechanisms

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The laterally offset side wall sections of the container merge with the corresponding sections of the inverted container to form integrated double side walls. This merging combines the structural elements of both containers into a unified stable structure, where the outer and inner wall sections work together to resist buckling and lateral forces

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the container is designed as open for goods presentation, then visibility and accessibility are improved, but protection and stability under load are reduced

Engineering Contradiction:
Improvegoods presentationVSAvoidprotection
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The container design allows dynamic reconfiguration between open and closed states. When stacked with an inverted container, the open containers form a closed structure that provides protection while maintaining the inherent visibility advantages of the open design. The lateral offsets and interlocking sections enable this dynamic transition, allowing the same structure to serve both presentation and protection functions

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4197931B1Open container for transporting and displaying goods
Publication Date: 2024.06.26 SCHOELLER ALLIBERT GMBH
  • EP4197931B1 patent drawingFigure 1~2
  • EP4197931B1 patent drawingFigure 3~4
  • EP4197931B1 patent drawingFigure 5~6

AI summary

An open container (1), in particular a plastic container, for transporting and presenting goods, comprising a base (2), a rear wall (6) projecting from the base (2), two opposing side walls (4) projecting from the base (2), and an end wall (8) with a cutout or a completely open end. The open container (1) can be completed with another identical container (101) placed upside down to form a closed container (201). The side walls (4) have several, in particular trapezoidal or crenellated, side wall sections (10, 12, 14, 16) which are offset laterally or in the transverse direction of the wall and overlap and are joined together with corresponding side wall sections (110, 112, 114, 116) of the identical container (101) placed upside down, preferably over the entire height of the side wall sections (10, 12, 14, 16).