Sewable Magnetic Connector for Compact Assembly Joining

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing connection devices for assemblies are not space-saving, cost-effective, and do not facilitate a reliable connection between assemblies, often requiring complex and bulky mechanisms.

Innovation Solution

A magnetic connection device with integrated sewing areas on the connecting parts, allowing for a seam connection that positions the seam close to the magnetic elements, enabling a compact and robust attachment that can withstand forces while allowing for easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional connection devices are used, then connection reliability is achieved, but the device complexity and space requirements increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into the connecting parts: magnetic attraction for connection force, engagement projections for mechanical interlocking, and integrated sewing areas for permanent attachment to assemblies. This merging of functions reduces overall device complexity while maintaining connection reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connecting parts are segmented into distinct functional elements: magnetic elements for attraction, engagement projections for locking, and sewing areas for attachment. This segmentation allows each element to be optimized independently while working together to provide reliable connection.

Inventive Principle:
Principle #1Segmentation

2Strength

If conventional connection devices are used, then connection strength is achieved, but the area and volume of the connection device increase

Engineering Contradiction:
Improveconnection strengthVSAvoidconnection area
Core Design Contradiction:
StrengthVSArea of stationary object

Solution Approach 1:

The patent concentrates the connection functions in localized areas on the connecting parts. The magnetic elements, engagement projections, and sewing areas are all positioned in specific local zones, allowing strong connections without increasing the overall area of the connection device.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The engagement projections are designed to nest into corresponding recesses on the opposing connecting part, creating a compact interlocking structure that provides strong mechanical connection without increasing external dimensions.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the sewing area is positioned far from the magnetic element, then engagement projection engagement is facilitated, but the seam distance to magnetic element increases reducing force transmission efficiency

Engineering Contradiction:
Improveengagement facilitationVSAvoidseam distance to magnetic element
Core Design Contradiction:
Ease of operationVSLength of moving object

Solution Approach 1:

The patent positions the sewing area, magnetic element, and engagement projections in a three-dimensional arrangement where the sewing area is offset in one dimension while the magnetic element and engagement projections operate in another dimension. This spatial arrangement allows both the sewing area to be close to the magnetic element for force transmission and the engagement projections to engage properly.

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

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

The solution provides a reliable, space-efficient, and cost-effective connection between assemblies, with a seam that maintains close proximity to the magnetic elements, facilitating force transmission and allowing for emergency separation if needed.

Implementation Method 1

The first and second magnetic elements attract each other magnetically to facilitate the connection of the first and second connecting parts

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP4486164B1Connection device with a sewable connection part
Publication Date: 2025.10.29 FIDLOCK GMBH
  • EP4486164B1 patent drawingFigure 1A
  • EP4486164B1 patent drawingFigure 1B
  • EP4486164B1 patent drawingFigure 2A~2C

AI summary

A connection device (1) comprises a first connection part (2) allocated to a first assembly (7) and having a first main body (20), and a second connection part (3) allocated to a second assembly (4), attachable to the first connection part (2) and having a second main body (30). The first main body (20) has a first sewing region (62, 62') for producing a first seam (6, 6') for connection to the first assembly (7). Additionally or alternatively, the second main body (30) has a second sewing region (52) for producing a second seam (5) for connection to the second assembly (4).