Closure Device Guide Section Magnetic Latching

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing closure devices require oversized magnetic means to ensure automatic latching when connection modules are not precisely aligned, leading to increased costs and space requirements.

Innovation Solution

Incorporating a guide section on the second connection module that aligns the first connection module into the closed position, allowing for optimal magnetic alignment without relying solely on magnetic force, and using a spring locking element and locking piece for mechanical latching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If oversized magnetic means are used to ensure automatic latching when connection modules are not precisely aligned, then the reliability of automatic closure is improved, but the cost and space requirements increase

Engineering Contradiction:
Improveautomatic latching reliabilityVSAvoidspace requirements
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

A guide section is introduced as an intermediary mechanical structure that mediates between the connection modules and magnetic means. This guide section passively aligns the connection modules during the closing motion, ensuring the magnetic means become properly positioned without requiring oversized magnets. The guide section acts as a mediator that converts arbitrary approach motions into precise alignment, resolving the contradiction between reliability and space requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The closing function is segmented into two distinct stages: first, the guide section performs mechanical alignment of the connection modules; second, the magnetic means perform the final attraction and latching. This segmentation allows each component to be optimized for its specific function, with the guide section handling alignment and the magnetic means handling attraction, thereby eliminating the need for oversized magnets while maintaining reliable automatic closure.

Inventive Principle:
Principle #1Segmentation

2Reliability

If oversized magnetic means are used to ensure automatic latching when connection modules are not precisely aligned, then the reliability of automatic closure is improved, but the manufacturing cost increases

Engineering Contradiction:
Improveautomatic latching reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The guide section serves as a cost-effective intermediary that provides passive mechanical alignment through its geometric design. Instead of investing in expensive oversized magnetic means, the guide section uses simple geometric constraints to align the connection modules, significantly reducing material costs while maintaining reliable automatic latching functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide section enables self-alignment of the connection modules during the closing motion. The geometry of the guide section automatically guides the modules into proper alignment without requiring external adjustment mechanisms or expensive precision components. This self-service alignment mechanism reduces manufacturing complexity and cost while ensuring reliable operation.

Inventive Principle:
Principle #25Self-service

3Volume of stationary object

If small-sized magnetic means are used, then the cost and space requirements are reduced, but the magnetic attraction force becomes insufficient to align and latch the connection modules automatically

Engineering Contradiction:
Improvespace requirementsVSAvoidmagnetic attraction force
Core Design Contradiction:
Volume of stationary objectVSForce

Solution Approach 1:

The guide section performs preliminary mechanical alignment of the connection modules before the magnetic means become effective. By pre-positioning the modules in the correct alignment through geometric constraints, the guide section ensures that even small magnetic means can generate sufficient attraction force once the modules are properly positioned, eliminating the need for oversized magnets.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The guide section acts as a mechanical intermediary that compensates for the limited force of small magnetic means. It provides the necessary alignment and directional guidance, allowing small magnets to function effectively by ensuring they engage at the optimal position and orientation, thereby maximizing their limited attraction force.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of manufacture

If small-sized magnetic means are used, then the cost and space requirements are reduced, but the connection modules cannot be automatically aligned and latched

Engineering Contradiction:
ImprovecostVSAvoidautomatic closure
Core Design Contradiction:
Ease of manufactureVSExtent of automation

Solution Approach 1:

The guide section serves as a passive mechanical intermediary that automates the alignment process. As the first connection module moves toward the second connection module, the guide section's geometric features automatically guide and center the modules relative to each other, enabling automatic closure without requiring complex active control systems or expensive precision components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide section performs preliminary centering and alignment actions during the approach phase, preparing the connection modules for automatic latching. This preliminary mechanical guidance ensures that when the small magnetic means engage, the modules are already properly aligned, enabling fully automatic closure at low cost.

Inventive Principle:
Principle #10Preliminary action

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

Enables secure, automatic closure with small-sized magnetic means, reducing costs and space requirements while ensuring proper alignment and mechanical latching, even when modules are not exactly aligned, and allows for easy opening by disengaging the magnetic and mechanical locking mechanisms.

Implementation Method 1

magnetic means are provided which bring about a magnetic attraction force between the connection modules in order to support the transfer of the connection modules into the closed position

Methodology Applied
Scientific EffectMagnetic attraction force: Magnetism

Data Source

PatentEP2389084B1Closure device for connecting two parts
Publication Date: 2017.05.17 FIDLOCK GMBH
  • EP2389084B1 patent drawingFigure 1
  • EP2389084B1 patent drawingFigure 2A
  • EP2389084B1 patent drawingFigure 2B

AI summary

The invention relates to a closure device for connecting two parts, with a first connecting module (1) and a second connecting module (2), wherein the first connecting module can be arranged in a closing direction on the second connecting module and in a closing position is mechanically locked with the second connecting module, and magnetic means (10, 20), which produce a magnetic force of attraction between the first connecting module and the second connecting module to assist the transfer of the first connecting module into the closing position. The first connecting module can be released from the second connecting module by a movement of the first connecting module or part of the first connecting module in an opening direction, which differs from the closing direction. At least one guiding portion (240A, 240B) for guiding the first connecting module into the closing position when the first connecting module is arranged on the second connecting module is provided here, arranged on the second connecting module, wherein the at least one guiding portion is directed counter to the opening direction (Y), at least with one directional vector component (FY).