Cutting Tool With Tapered Discs For Masonry Grooving

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Solution Overview

Problem

Existing cutting tools for groovers in construction struggle to efficiently make non-linear cuts, such as curved paths, in masonry surfaces, and often generate excessive dust and waste.

Innovation Solution

A cutting tool comprising at least two adjacent and coaxial cutting discs with tapered cutting segments, forming a toroidal periphery to create grooves with rounded, narrowed, or tapered bases, facilitating non-linear cutting and reducing dust and waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional cutting tools with single cutting discs are used, then linear cutting is achieved, but non-linear cutting along curved paths is difficult

Engineering Contradiction:
Improvecapability to perform non-linear cuttingVSAvoiddifficulty of cutting along curved paths
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The cutting tool is divided into multiple cutting discs (at least two) arranged adjacent and coaxially to each other. Each cutting disc has cutting segments with tapered peripheries that work in sequence to enable non-linear cutting paths. This segmentation allows the tool to create rounded, narrowed, or tapered grooves that facilitate curving movements, directly resolving the limitation of conventional single-disc tools.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If conventional cutting tools make linear cuts, then cutting speed is maintained, but dust and waste generation is excessive

Engineering Contradiction:
Improvedust and waste generationVSAvoidcutting efficiency
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The cutting segments are designed with rounded peripheries and tapered shapes that create curved cutting paths instead of straight linear cuts. This curvature in the cutting action produces rounded grooves with smaller cross-sections, which naturally reduces the volume of material removed and consequently decreases dust and waste generation while maintaining cutting effectiveness.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Manufacturing precision

If multiple cutting discs with tapered peripheries are used, then rounded grooves with reduced waste are created, but device complexity increases

Engineering Contradiction:
Improvequality of groovesVSAvoidnumber of cutting discs and segments
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Multiple cutting discs with tapered cutting segments are combined in a single tool assembly, arranged adjacent and coaxially to each other. This merging of multiple cutting elements into one integrated tool allows the creation of high-quality rounded grooves with reduced waste while managing the complexity through a unified structural design that coordinates all cutting segments working together.

Inventive Principle:
Principle #5Merging (Combining)

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 cutting tool effectively enables non-linear cutting along curved paths while minimizing dust and waste generation, improving working conditions and the quality of grooves in masonry surfaces.

Implementation Method 1

the cutting segment(s) of at least one of the cutting discs has a periphery which tapers towards an adjacent cutting disc to make a groove with a rounded, narrowed or tapered base

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentEP4556189A1Cutting tool
Publication Date: 2025.05.21 ILLINOIS TOOL WORKS INC
  • EP4556189A1 patent drawingFigure 1
  • EP4556189A1 patent drawingFigure 2
  • EP4556189A1 patent drawingFigure 3

AI summary

The invention relates to a cutting tool (2) for a groover (1) for producing grooves in a substrate. The cutting tool (2) comprises at least two cutting discs (3, 4, 5) adjacent and coaxial to each other. Each cutting disc (3, 4, 5) comprises a base disc (30, 40, 50) with at least one cutting segment (31, 41, 51) on its circumference. At least one cutting segment (31, 51) of at least one of the cutting discs (3, 5) has a periphery that tapers towards an adjacent disc (4) to produce a groove (6) with a rounded, narrowed or tapered base (60).