Natural Stone Tile Slabs with PVC Mechanical Locking System

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Solution Overview

Problem

The traditional installation of natural stone and porcelain tile slabs is cumbersome, requiring cement, adhesives, and grout, which is time-consuming, expensive, and difficult to maintain, and often results in misaligned corners and imperfections in subfloor preparation.

Innovation Solution

Incorporating a mechanical locking system into natural stone tile slabs by cutting them horizontally on all four sides and inserting pre-milled polyvinyl chloride couplings, eliminating the need for cement, adhesives, and grout, while adding a backing layer for insulation and comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional installation methods using cement, adhesives, and grout are used for natural stone tile slabs, then the tiles can be securely installed, but the installation process becomes time-consuming, expensive, and difficult to maintain

Engineering Contradiction:
Improvesecure installationVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The tile slab is divided into a stone core and separate coupling elements. The coupling elements are inserted into grooves cut into the stone core, creating a segmented assembly that enables mechanical locking without requiring cement, adhesives, or grout for installation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Coupling elements made of polyvinyl chloride or similar material act as intermediaries between adjacent tile slabs. These couplings are inserted into grooves on the stone core and provide the mechanical locking function, replacing the traditional need for cement and adhesives.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If traditional installation methods are used, then tiles can be installed, but misaligned corners and imperfections in subfloor preparation occur

Engineering Contradiction:
Improvecorner alignmentVSAvoidsubfloor preparation requirements
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mechanical locking system with couplings inserted into grooves allows the tile slabs to self-align during installation. The coupling elements guide the tiles into proper alignment as they are clicked together, eliminating the need for specialized labor and complex subfloor preparation.

Inventive Principle:
Principle #25Self-service

3Ease of manufacture

If grout is used between tile slabs, then the installation is complete, but stains, dirt, and grime are impregnated in the grout making it difficult to maintain clean

Engineering Contradiction:
Improveinstallation completionVSAvoidmaintenance cleanliness
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The grout layer is completely removed from the system. Instead of installing tiles with grout between them, the invention uses mechanical couplings that lock the tiles together with visible gaps, eliminating the grout that would otherwise stain and require difficult maintenance.

Inventive Principle:
Principle #2Taking out (Extraction)

4Reliability

If natural stone tile slabs are installed traditionally, then the installation is complete, but the process requires specialized labor and is expensive

Engineering Contradiction:
Improveinstallation completionVSAvoidinstallation accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mechanical locking system with couplings enables DIY installation by homeowners without requiring specialized labor. The tiles with integrated grooves and couplings can be easily assembled by clicking them together, making the installation process accessible to ordinary consumers.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS8438813B2Stone click floor coverings
Publication Date: 2013.05.14 CORDEIRO EURICO JANUARIO
  • US8438813B2 patent drawing
  • US8438813B2 patent drawing
  • US8438813B2 patent drawing

AI summary

Floor covering (01) material, consisting of Natural Stones, i.e. Marble, Granite, Limestone, Onyx, Travertine and Sandstone, in format of tile slabs, in which the thickness is between 4 mm and 35 mm, in which at the two opposite edges or sides are jointed together and interlocked by mechanical locking means, by connecting or inserting (A6 to A5) and connecting or pressing downward (A8 to A9) using Polyvinyl Chloride (PVC) couplings, connecting in the form of a tongue and a groove which will prevent shifting of two interlocked tiles and or slabs into the opposed direction of each section tile or slab, with an integrated backing layer consisting of cork and/or syntactic foam material, The invention relates to a natural stone core tile slab, allowing for an installation without the use of cement, adhesives or grout, provided with such a mechanical locking system jointed to the core (A4) according to the invention.