Floor Polishing Brush Assembly With Trapezoidal Abrasive Blades

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Solution Overview

Problem

Existing floor polishing machines using abrasive brushes face inefficiencies due to varying effective areas and non-uniform performance, particularly with abrasive brushes, leading to untreated strips and the need for multiple passes to achieve uniform results.

Innovation Solution

A polishing device with a circular pad featuring radially extending slots and blades secured by protrusions, which includes a trapezoidal body and abrasive elements to ensure uniform pressure distribution and continuous treatment, compatible with standard floor cleaning machines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If abrasive brushes are used with extended abrasive elements outside the base footprint, then the effective area is increased, but the uniformity of performance deteriorates due to reduced support and increased bending

Engineering Contradiction:
Improveeffective areaVSAvoiduniformity of performance
Core Design Contradiction:
Area of moving objectVSManufacturing precision

Solution Approach 1:

The brush is divided into multiple independent abrasive elements (blades) that are individually supported by the base structure. Each blade can be optimized for uniform pressure distribution while maintaining the overall extended effective area, resolving the contradiction between increased area and maintained performance uniformity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the brush base are designed with varying support characteristics to compensate for the bending effects of extended abrasive elements. The base structure provides enhanced support at critical locations to ensure uniform pressure distribution across all abrasive elements, maintaining performance uniformity while preserving extended effective area.

Inventive Principle:
Principle #3Local quality

2Productivity

If multiple brush devices are used to increase cleaning area, then the productivity is improved, but the complexity of the device increases

Engineering Contradiction:
Improvecleaning areaVSAvoidnumber of brush devices
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple brush devices are merged into a single integrated brush assembly with a unified base structure. This consolidation maintains the increased cleaning area provided by multiple brushes while reducing operational complexity through a single cohesive unit that functions as one integrated system.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If abrasive brushes with high material removal capability are used, then the productivity is improved, but the durability deteriorates leading to more frequent replacements

Engineering Contradiction:
Improvematerial removal capabilityVSAvoiddurability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The brush employs composite construction combining durable base materials with high-performance abrasive elements. This composite design enables the brush to maintain both high material removal capability and extended service life, as the durable base structure supports the abrasive elements while resisting degradation from intensive use.

Inventive Principle:
Principle #40Composite materials

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 device provides a substantially continuous and uniform abrasive performance, increasing material removal capability up to four times compared to existing brushes, while maintaining durability and reducing the number of passes required.

Implementation Method 1

abrasive brushes with an extended effective area... provide a clean surface

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

abrasive elements... increasing material removal capability

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentEP4017683B1Floor polishing apparatus
Publication Date: 2025.10.01 DIAMABRUSH LLC
  • EP4017683B1 patent drawingFigure 1
  • EP4017683B1 patent drawingFigure 2A~2B
  • EP4017683B1 patent drawingFigure 3~4

AI summary

A brush assembly is provided for increasing an effective area and uniformity of performance in an abrasive floor polishing application at a given size of brush mount. The brush assembly includes a pad with slots for receiving abrasive blades. The pad includes variable protrusions to provide varied support to the abrasive blades. The blades have a trapezoidal body shape. The blades include abrading components including an abrasive material such as diamonds. In some embodiments, the abrading components include a metallic material, such as copper material. In some embodiments, the abrading components include a phenolic material.