A carpet laying tool

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Solution Overview

Problem

The challenge in wet rooms, such as bathrooms and kitchens, is the difficulty in laying floor coverings with moisture-proof barriers that can withstand thermal expansion and contraction, while also preventing organic growth and ensuring proper alignment and sealing, as existing tools often lead to misalignment and weakened joints.

Innovation Solution

A carpet laying tool with a tetrahedral shape and triangular guiding portions that provide a stable platform for cutting and pressing the carpet, allowing for diagonal seams that meet specific trade rules, and incorporating a thermally conducting material for quicker cooling of joints.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If existing tools are used for laying floor coverings in wet rooms, then the laying process can be completed, but misalignment and weakened joints occur due to thermal expansion and contraction

Engineering Contradiction:
Improvealignment precisionVSAvoidjoint strength
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The tool is divided into multiple functional portions: a first portion for providing a stable platform, triangular guiding portions for precise diagonal cutting, and a thermally conducting portion for joint cooling. Each segment performs a specific function that collectively solves the alignment and joint strength problems.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tool transitions from a two-dimensional flat structure to a three-dimensional tetrahedral shape with triangular guiding portions extending at predetermined angles. This dimensional change enables precise diagonal seam cutting and provides stable positioning in multiple directions simultaneously.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If manual cutting and fitting methods are used, then flexibility is maintained, but time consumption and labor intensity increase significantly

Engineering Contradiction:
Improvelaying speedVSAvoidtime for cutting and fitting
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The triangular guiding portions are pre-configured at predetermined angles to guide the cutting tool along the exact diagonal path required by trade rules. This preliminary setup eliminates the need for repeated measurements and adjustments during the laying process, significantly reducing time consumption.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The tool's geometric structure automatically ensures proper alignment and positioning through its tetrahedral shape and triangular guiding portions. The tool self-corrects alignment errors and maintains proper seam angles without requiring constant operator intervention or complex adjustment mechanisms.

Inventive Principle:
Principle #25Self-service

3Object-affected harmful factors

If joints are fused without proper cooling, then the joining process is quick, but organic growth occurs in rough joint surfaces

Engineering Contradiction:
Improveorganic growth resistanceVSAvoidjoint finishing quality
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The thermally conducting portion acts as an intermediary between the hot fused joint and the cooler environment. It rapidly conducts heat away from the joint area, creating a controlled cooling effect that prevents organic growth while maintaining smooth joint surfaces. This intermediary function solves both the speed and quality requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The tool changes the temperature parameter of the joint by introducing a cold surface through the thermally conducting portion. This parameter change from hot to cold occurs rapidly during the cooling phase, transforming the joint state to prevent organic growth and ensure proper finishing quality.

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

The tool facilitates easier and more resistant fitting of floor coverings in wet rooms, reducing the risk of misalignment and organic growth, while ensuring effective moisture-proofing and compliance with industry standards.

Implementation Method 1

incorporating a thermally conducting material for quicker cooling of joints

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3017728B1A carpet laying tool
Publication Date: 2017.05.17 DURI SVENSKA
  • EP3017728B1 patent drawingFigure 1a~1c
  • EP3017728B1 patent drawingFigure 2~3
  • EP3017728B1 patent drawingFigure 4a~4c

AI summary

A tool adapted for laying floor coverings for wet rooms, the tool (1) comprising: a first portion (3) comprising a planar surface and a first (4) and a second edge (5) which are each substantially straight, the first (4) and the second edge (5) being arranged with a first edge tangent intersecting a second edge tangent at a right angle at a base corner (2) of the carpet laying tool (1). The tool (1) further comprising at least a first triangular guiding portion (8) comprising a planar surface, arranged perpendicularly to the first portion (3) and extending from the base corner (2) along the first edge (4) of the first portion (3), and the triangular guiding portion (8) comprising a substantially right angle (2b) which is comprised in the base corner (2). The triangular guiding portion (8) further comprising a hypotenuse edge (10) arranged at a predetermined angle to the planar surface of the first portion (3). The hypotenuse edge (10) provides a carpet seam cutting guide for a cutting tool.