Resilient floor

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Solution Overview

Problem

Existing methods for assembling resilient floorboards with mechanical locking systems, such as angling-angling, angling-snapping, and vertical folding, are difficult due to the bending and increased friction of resilient materials like PVC, requiring excessive force for connection.

Innovation Solution

A method involving bending the floorboard along its edge to partially connect it, using a mechanical locking system with resiliently bendable locking strips and a tool with a rotatable press part to reduce the force needed, allowing for easier assembly by minimizing friction and the area of contact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If known assembly methods (angling-angling, angling-snapping, vertical folding) are used on resilient floorboards, then mechanical locking connection is achieved, but the process becomes difficult due to board bending and high friction requiring excessive force

Engineering Contradiction:
Improveease of assemblyVSAvoidforce required for connection
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The locking strip is divided into a first part and a second part that can move relative to each other. The first part remains substantially stationary while the second part moves along the locking strip during assembly, allowing progressive engagement rather than requiring force across the entire edge simultaneously. This segmentation reduces the instantaneous force needed and simplifies the assembly operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking system employs dynamic elements where the second part of the locking strip can move along the strip's length. This movement capability allows the system to adapt during assembly, transitioning from a static high-friction engagement to a dynamic progressive engagement that reduces required force and improves ease of operation.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the entire edge of the floorboard is connected simultaneously, then complete mechanical locking is achieved, but excessive force is required due to high friction across the full contact area

Engineering Contradiction:
Improveconnection strengthVSAvoidforce required for assembly
Core Design Contradiction:
ReliabilityVSForce

Solution Approach 1:

The assembly process engages only a portion of the edge at any given time through the movable second part of the locking strip. Rather than requiring force across the entire edge simultaneously, the system progressively engages the locking mechanism along the edge length, reducing the instantaneous force requirement while still achieving complete connection through repeated or continuous movement of the second part.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If resilient floorboards are assembled using traditional methods, then mechanical locking is achieved, but the process is time-consuming and labor-intensive due to difficult manipulation of bending boards

Engineering Contradiction:
Improveassembly efficiencyVSAvoidease of manipulation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

By segmenting the locking strip into movable and stationary parts, the system allows for easier manipulation during assembly. The movable second part can be engaged and positioned more easily than a rigid full-length locking mechanism, reducing the skill and effort required while improving assembly speed and productivity.

Inventive Principle:
Principle #1Segmentation

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 method significantly reduces the force required for connecting resilient floorboards by allowing partial edge locking, making the assembly process easier and more efficient while maintaining a strong mechanical connection.

Implementation Method 1

The resiliently bendable locking strip is preferably made of the same resilient material as the resilient floorboards and most preferably of vinyl, surlyn, and/or PVC

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3533950A1Resilient floor
Publication Date: 2019.09.04 VÄLINGE INNOVATION AB
  • EP3533950A1 patent drawingFigure 1a~1b
  • EP3533950A1 patent drawingFigure 2a~2b
  • EP3533950A1 patent drawingFigure 3a~3b

AI summary

A method of assembling resilient floorboards is disclosed that includes the step of bending an edge of a floorboard during the assembling. The bending reduces the force required for connection of the edge to another edge of a juxtaposed floorboard.