Coupling element

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Solution Overview

Problem

Existing coupling elements in modular construction systems face challenges in providing simultaneous locking in both axial and rotational directions, leading to increased manufacturing complexity and a higher risk of locking mechanisms breaking off.

Innovation Solution

A coupling element with resiliently movable tongues connected to locking cams, where each tongue is connected to one axial end of the body, extending in opposite directions to provide locking in both axial and rotational directions, and featuring a rotation limiting element to prevent further rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate locking elements are used to provide locking in both axial and rotational directions, then the locking reliability is improved, but the device complexity and manufacturing difficulty increase

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

Solution Approach 1:

The patent combines multiple locking functions (axial locking and rotational locking) into a single integrated coupling element. The coupling element includes a body with locking cams that engage with lips on the construction element, where the locking cams are resiliently movable toward and away from the lips. This single element simultaneously provides locking in both axial and rotational directions, eliminating the need for separate locking components and reducing overall device complexity while maintaining reliable locking in multiple directions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The coupling element is designed as a multi-functional component that performs multiple locking functions. The locking cams can engage with the lips to provide axial locking, while the resilient movement capability allows the same locking cams to engage with protrusions for rotational locking. This universal design enables a single element to fulfill multiple locking roles that would traditionally require separate specialized components.

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

2Reliability

If multiple separate locking elements are used to provide locking in both axial and rotational directions, then the locking reliability is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvelocking reliabilityVSAvoidmanufacturing precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent combines multiple locking functions (axial locking and rotational locking) into a single integrated coupling element. The coupling element includes a body with locking cams that engage with lips on the construction element, where the locking cams are resiliently movable toward and away from the lips. This single element simultaneously provides locking in both axial and rotational directions, eliminating the need for separate locking components and reducing overall device complexity while maintaining reliable locking in multiple directions.

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If the locking mechanism is designed to engage firmly in both axial and rotational directions, then the strength of the connection is improved, but the risk of the locking mechanism breaking off increases

Engineering Contradiction:
Improveconnection strengthVSAvoidlocking mechanism durability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The locking cams are designed to be resiliently movable, allowing them to dynamically adjust during engagement. When the coupling element is inserted, the locking cams are pushed toward the lips and can flexibly engage with protrusions on the construction element. This resilient movement allows the locking mechanism to accommodate variations in positioning and reduces stress concentration, preventing the locking mechanism from breaking off while maintaining strong locking in both axial and rotational directions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The resilient locking cams provide a cushioning effect during engagement. The elasticity of the locking cams allows them to deform elastically when engaging with the lips and protrusions, absorbing impact forces and reducing peak stresses. This beforehand cushioning prevents the locking mechanism from breaking off under high loads while ensuring firm engagement in both axial and rotational directions.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

4Ease of manufacture

If a single coupling element integrates both axial and rotational locking functions, then the ease of manufacture is improved, but the device complexity increases

Engineering Contradiction:
Improveease of manufactureVSAvoiddevice complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines multiple locking functions (axial locking and rotational locking) into a single integrated coupling element. The coupling element includes a body with locking cams that engage with lips on the construction element, where the locking cams are resiliently movable toward and away from the lips. This single element simultaneously provides locking in both axial and rotational directions, eliminating the need for separate locking components and reducing overall device complexity while maintaining reliable locking in multiple directions.

Inventive Principle:
Principle #5Merging (Combining)

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

This design simplifies manufacturing, reduces the risk of locking mechanism failure, and integrates locking functions in both axial and rotational directions within a single element, enhancing the stability and balance of the coupling system.

Implementation Method 1

the body is provided with at least one resiliently movable tongue extending therefrom, to which tongue the locking cam is connected, wherein the at least one tongue is movable inward by a force being exerted thereon by a protrusion of the object

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3445467B1Coupling element
Publication Date: 2020.03.18 JAROLA VISION
  • EP3445467B1 patent drawingFigure 1A~1B
  • EP3445467B1 patent drawingFigure 2A~2C
  • EP3445467B1 patent drawingFigure 3A~3B

AI summary

The invention relates to a coupling element comprising a body with an axial axis arrangeable in an opening of an object, which body is provided along its outer periphery with at least one outward extending locking cam, wherein the body is provided with at least one resiliently movable tongue extending therefrom, to which tongue the locking cam is connected, wherein the at least one tongue is movable inward by a force being exerted thereon.