Support Plate with Clamping Extension for Floor Tile Installation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing floor slab installation methods using rail substructures are inadequate for natural stone slabs due to varying thicknesses, leading to tripping hazards, and lack of stability against suction forces, with complex component requirements complicating planning and construction.

Innovation Solution

The use of support plates with a base plate and vertically projecting webs, featuring receiving spaces for adhesive and a bolt-shaped clamping extension, which secures the support plate to the rail and allows for stable adhesive bonding between the floor slabs and the rail substructure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional installation techniques are used for natural stone slabs, then the installation process is simple, but the varying thicknesses of natural stone slabs create tripping hazards

Engineering Contradiction:
Improveinstallation process simplicityVSAvoidsurface level uniformity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The support system is segmented into individual adjustable supports positioned at each corner of floor slabs, allowing independent height adjustment for each support point to compensate for varying natural stone slab thicknesses

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support height parameter is made adjustable to accommodate variations in natural stone slab thickness, enabling the installation surface to maintain uniform level despite changes in the underlying slab parameters

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If floor slabs are laid directly on rails with sealing strips, then the structure is simple, but water cannot drain off laterally

Engineering Contradiction:
Improvestructure complexityVSAvoidwater drainage
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The sealing function is extracted from the rail-floor slab interface by introducing separate joint spacers, allowing the rail support structure to remain simple while enabling water drainage pathways through the joint spaces

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If clamps are used to secure floor slabs against suction, then suction stability is improved, but relative movement between floor slabs and clamps causes instability and noise

Engineering Contradiction:
Improvesuction stabilityVSAvoidstructural stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The support and clamping functions are merged into a single integrated support plate system with clamping extensions that engage with the rails, eliminating relative movement between separate components while maintaining suction stability

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If multiple different components are used to construct the floor slab arrangement, then the floor slabs can be secured and aligned, but planning and implementation become complicated

Engineering Contradiction:
Improvefloor slab securityVSAvoidcomponent variety
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support plate is designed as a universal multi-functional component that combines support, clamping, and alignment functions, replacing multiple different components (supports, clamps, aligners) with a single standardized element that performs all necessary functions

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

Solution Approach 2:

The support plates are pre-positioned on the rails at predetermined locations, establishing the framework for subsequent floor slab installation and ensuring proper alignment and spacing before the actual laying process begins

Inventive Principle:
Principle #10Preliminary 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 solution enables secure and stable installation of floor slabs, including natural stone, by addressing suction issues and allowing lateral water drainage, while simplifying the installation process with fewer required components.

Implementation Method 1

The receiving spaces are filled with adhesive, preferably with a two-component adhesive, before the base plate is placed on top. The 2-component adhesive cures, as is well known, not through the evaporation of a solvent, but through a chemical reaction

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

a bolt-shaped clamping extension protrudes from the rail-side base surface

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4219862B1Support plate and assembly for laying floor plates
Publication Date: 2025.06.18 LEITNER FRANZ
  • EP4219862B1 patent drawingFigure 1~2
  • EP4219862B1 patent drawingFigure 3a~3c
  • EP4219862B1 patent drawingFigure 4a~4c

AI summary

Support plates and arrangement for square or rectangular floor tiles, in particular tiles, for laying in the corner areas of adjacent floor tiles resting on rails (11) of a rail substructure, with a base plate (1) that forms a plate-side support surface for the corner areas of the floor tiles and a rail-side base surface, wherein four vertically projecting ribs (4) from the plate-side support surface are provided, which form a joint cross with four support areas for the floor tiles located between the respective ribs (4), wherein it is proposed that in the support areas between the ribs (4) a penetration (9) is provided in the base plate (1) to form a receiving space for adhesive, and a clamping extension (3) projecting from the rail-side base surface is provided.