Rotational Base Module for Modular Safety Locking

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Solution Overview

Problem

Existing safety locking systems require high design effort for different configurations and incur significant costs due to the need for multiple module variants and complete system replacement upon module defects.

Innovation Solution

A modular arrangement with rotationally symmetrical connection modules allowing for flexible attachment of handle modules on either side, reducing the need for multiple variants and enabling modular interchangeability, with a data bus system for independent internal communication and simplified cabling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple variants of the locking module are provided to cover different configurations (right-hand or left-hand attachment), then adaptability to different configurations is improved, but device complexity and design effort increase

Engineering Contradiction:
Improveadaptability to different configurationsVSAvoiddesign effort
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by providing only one variant of the locking module with a standardized connection module, while the handle module is designed to be attachable on either side (right or left). This reverses the conventional approach where the locking module would be customized for each configuration. The asymmetric design of the handle module accommodates different mounting situations without requiring multiple locking module variants, thus reducing design effort while maintaining adaptability.

Inventive Principle:
Principle #4Asymmetry

2Reliability

If the entire safety locking system is sent back for repairs when a module develops a defect, then reliability is maintained, but loss of time and repair costs increase

Engineering Contradiction:
Improvesystem reliabilityVSAvoidrepair time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies segmentation by designing the safety locking system as modular components (locking module, handle module, function modules) that can be independently replaced. The connection modules use standardized plug-and-socket interfaces that enable easy detachment and replacement of individual modules. When a defect occurs, only the affected module needs to be replaced rather than returning the entire system, significantly reducing repair time and costs while maintaining system reliability through proper module substitution.

Inventive Principle:
Principle #1Segmentation

3Ease of repair

If standardized connection modules are used to enable modular interchangeability, then ease of repair is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvemodular replaceabilityVSAvoidconnection precision
Core Design Contradiction:
Ease of repairVSManufacturing precision

Solution Approach 1:

The patent applies universality by designing the connection module with standardized mechanical and electrical interfaces that can be used across all locking modules regardless of configuration. The connection module serves multiple functions: mechanical coupling, electrical connection, and alignment guidance. This standardized interface enables easy modular replacement while the manufacturing precision is concentrated in the standardized connection module itself, which can be produced with high precision using standard manufacturing processes, rather than requiring precision in multiple variant-specific designs.

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

Data Source

PatentEP3051551B1Module assembly with at least one base module
Publication Date: 2020.10.14 EUCHNER GMBH & CO KG
  • EP3051551B1 patent drawingFigure 1
  • EP3051551B1 patent drawingFigure 2
  • EP3051551B1 patent drawingFigure 3

AI summary

The invention relates to a module arrangement (1) comprising at least one base module, which has a connection module on each of two different sides, and at least one functional module with at least one connection module. The connection modules of the base module are designed to be rotationally invariant with respect to their mechanical and electrical connections, so that by rotating the base module either its first or second connection module can be selectively contacted on the connection module of the functional module.