Elastic Floor Panel Coupling for Tight-Space Installation

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Solution Overview

Problem

Existing laminated floor coverings require significant force and space for coupling, which can lead to damage and make installation challenging in confined areas.

Innovation Solution

The floor panel design features specifically formed coupling parts that deform elastically to facilitate easy and durable coupling, using upward and downward tongues and grooves, and locking elements that engage resiliently to secure the panels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional rigid coupling parts are used to connect floor panels, then the coupling is strong and stable, but the coupling process requires great force and can cause permanent damage (breakage)

Engineering Contradiction:
Improvecoupling strengthVSAvoiddamage during coupling
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The coupling parts are designed with elastic properties, changing the material parameter from rigid to resilient. This allows the coupling parts to deform during the coupling process, reducing the peak force required and preventing breakage, while still providing strong and stable connection when coupled.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The elastic coupling parts inherently provide cushioning before the coupling is fully established. The resilient material absorbs shock and distributes force during the coupling process, preventing sudden impacts that could cause damage to the floor panels or underlying structure.

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

2Duration of action of stationary object

If traditional coupling mechanisms are used, then the connection is durable, but a relatively large amount of space is required to enable mutual coupling

Engineering Contradiction:
Improvecoupling durabilityVSAvoidspace required for coupling
Core Design Contradiction:
Duration of action of stationary objectVSArea of stationary object

Solution Approach 1:

By changing the material parameter to elastic/resilient, the coupling mechanism can achieve durable connection with reduced spatial requirements. The elastic deformation allows the tongues and grooves to engage more compactly without requiring large movement amplitudes, enabling coupling in confined spaces near walls or under radiators.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If resilient locking parts are used to facilitate easy coupling, then the coupling process is simplified, but material fatigue occurs relatively quickly reducing reliability

Engineering Contradiction:
Improvecoupling easeVSAvoidlocking reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention uses elastic coupling parts with optimized material properties that balance resilience for easy coupling with sufficient strength for long-term reliability. The elastic material is selected to provide adequate deformation capability for simple coupling while maintaining fatigue resistance for durable service.

Inventive Principle:
Principle #35Parameter changes

4Device complexity

If conventional coupling parts are used, then the structure is simple, but friction between coupling parts generates relatively much noise

Engineering Contradiction:
Improvecoupling structure complexityVSAvoidnoise during coupling
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

By changing the material parameter to elastic, the coupling parts can deform to accommodate minor misalignments and irregularities during coupling. This reduces friction and sliding between the coupling surfaces, thereby reducing noise generation while maintaining the overall simplicity of the coupling structure.

Inventive Principle:
Principle #35Parameter changes

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 allows for simple, reliable, and durable coupling of floor panels with minimal noise, while also providing a strong and stable connection that resists vertical displacement and expansion.

Implementation Method 1

During coupling of adjacent floor panels a force will here be exerted on one or both coupling parts, whereby the one or both coupling parts will deform elastically (move resiliently), as a consequence of which the volume taken up by the downward groove and/or upward groove will be increased

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

By subsequently allowing the forced coupling parts to move back resiliently to the original position a reliable, locked coupling will be realized between the two coupling parts

Methodology Applied
Scientific EffectElastic recovery: Elasticity

Data Source

PatentEP4325070B1Floor panel and floor covering consisting of a plurality of such floor panels
Publication Date: 2025.01.29 I4F LICENSING NV
  • EP4325070B1 patent drawingFigure 1~2
  • EP4325070B1 patent drawingFigure 3~4
  • EP4325070B1 patent drawingFigure 5

AI summary

The last ten years has seen enormous advance in the market for laminate for hard floor covering. An important aspect during the product development of the laminate is the facility with which a laminated floor can be laid. The invention relates to an improved floor panel, in particular a laminated floor panel.