Resilient Floorboard Edge Assembly With Partial Mechanical Locking

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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 boards' tendency to bend and increased friction, requiring excessive force for connection.

Innovation Solution

A method that involves bending only a part of the floorboard edge using a raising device, combined with a mechanical locking system featuring resiliently bendable locking strips with protruding elements and guiding surfaces, reduces the force needed for assembly by minimizing friction and contact areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If known assembly methods (angling-angling, angling-snapping, vertical folding) are used for resilient floorboards, then mechanical locking connection is achieved, but excessive force is required due to board bending and increased friction

Engineering Contradiction:
Improvelocking connectionVSAvoidassembly force
Core Design Contradiction:
ReliabilityVSForce

Solution Approach 1:

The locking system is divided into separate components: a locking element with locking legs and a locking strip with locking grooves. This segmentation allows the locking elements to engage independently without requiring the entire edge to be forced simultaneously, reducing the overall assembly force needed while maintaining reliable locking connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking strip acts as an intermediary component between adjacent floorboards. It provides a controlled interface for locking engagement, distributing the connection forces and reducing friction through its specific geometry with inclined locking grooves that guide the locking elements into place.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If resilient floorboards are assembled using conventional methods, then edge connection is achieved, but the entire edge must be locked requiring excessive force

Engineering Contradiction:
Improveedge connectionVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking system uses discrete locking elements spaced along the edge rather than requiring continuous edge engagement. Each locking element can engage independently with its corresponding locking groove, allowing progressive assembly without forcing the entire edge simultaneously, thereby improving ease of operation while maintaining reliable edge connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design allows locking engagement to proceed progressively along the edge rather than requiring complete edge engagement at once. The inclined locking grooves enable partial engagement to occur naturally during assembly, reducing the operational difficulty while achieving full edge connection reliability.

Inventive Principle:
Principle #16Partial or excessive 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

This method significantly reduces the assembly force required and simplifies the connection process by allowing partial edge locking, making it easier to install resilient floorboards with reduced friction and increased locking strength.

Implementation Method 1

The resiliently bendable locking strip facilitates the connection of the floorboards

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The bending is preferably achieved by raising an outer part of said edge preferably by positioning of a raising device, e.g. a wedge

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP2473687B1A method of assembling resilient floorboards which are provided with a mechanical locking system
Publication Date: 2019.04.24 VÄLINGE INNOVATION AB
  • EP2473687B1 patent drawingFigure 1a~1b
  • EP2473687B1 patent drawingFigure 2a~2b
  • EP2473687B1 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.