Crate Coupling Latch for Secure Stacking on Platforms

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Solution Overview

Problem

Existing storage solutions lack efficient and secure coupling mechanisms for stacking and articulating crates or containers to various platforms, leading to potential detachment and instability during handling and transportation.

Innovation Solution

A crate design featuring male-female coupling members, including sliding locking slots and tongues, and a locking latch mechanism, which securely locks crates together and allows articulation to different platforms through auxiliary coupling arrangements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If simple stacking is used without coupling members, then device complexity is reduced, but reliability of stacking stability deteriorates

Engineering Contradiction:
Improvestacking stabilityVSAvoidcoupling mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coupling mechanism is divided into separate male and female coupling members that can be independently manufactured and assembled. The male coupling member includes a coupling body with engagement protrusions, while the female coupling member has corresponding engagement recesses, allowing modular assembly that enhances reliability without excessive complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coupling members are designed to nest within each other during stacking, with the male coupling member inserting into the female coupling member. This nesting arrangement provides secure mechanical interlocking for stable stacking while maintaining a compact overall structure

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If detachable coupling members are used, then ease of operation for assembly and disassembly is improved, but reliability of secure locking deteriorates

Engineering Contradiction:
Improveassembly and disassembly convenienceVSAvoidlocking security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The coupling mechanism incorporates movable locking elements including spring-loaded locking pins and sliding locking surfaces. These dynamic components automatically engage during assembly to provide secure locking, yet can be easily disengaged when needed, balancing operational ease with locking reliability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling members feature self-locking characteristics where the male and female members automatically engage and lock together through spring-loaded pins and complementary locking surfaces during the stacking operation, providing reliable securing without requiring additional manual locking steps

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If universal coupling members are used for different platforms, then adaptability is improved, but manufacturing precision requirements worsen

Engineering Contradiction:
Improveplatform compatibilityVSAvoidcoupling member dimensional tolerance
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The coupling members are designed with standardized dimensions and geometries that allow the same male and female coupling components to interface with various platform types including crates, pallets, and containers. This universal design enables multi-platform compatibility while using conventional manufacturing tolerances through robust feature design

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

Solution Approach 2:

The coupling mechanism incorporates adjustable and interchangeable components such as removable coupling bodies and replaceable locking elements. These parameter-changable features allow the same basic coupling structure to adapt to different platform configurations and tolerance variations, maintaining versatility without demanding extreme manufacturing precision

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3746370B1Coupleable crate
Publication Date: 2026.02.18 KETER HOME & GARDEN PROD LTD
  • EP3746370B1 patent drawingFigure 1A~1B
  • EP3746370B1 patent drawingFigure 1C~1D
  • EP3746370B1 patent drawingFigure 2A~2B

AI summary

The present disclosure concerns a crate coupleable to another crate or to a variety of carrying platforms.