Roller brush, in particular for a cleaning and/or care device and cleaning and/or care device
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Solution Overview
Problem
Current cleaning devices are inadequate for thoroughly cleaning heavily soiled exterior surfaces, such as concrete, natural stone, and wooden decks, as they either sweep dirt without removing it or damage the surfaces with high-pressure cleaning, and lack the ability to penetrate irregularities and clean joints effectively.
Innovation Solution
A roller brush with a rotationally-symmetrical cylinder featuring alternating bundles of bristles of different lengths and materials, arranged diagonally to prevent oscillation and ensure deep surface contact, combined with a hand-held cleaning device that allows for adjustable speed and easy exchange of brush types for various surfaces, enabling effective cleaning of joints and surfaces without support wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-pressure cleaning is used to remove contaminants from surfaces, then cleaning effectiveness is improved, but joints are damaged and water penetrates into joints
Solution Approach 1:
The patent replaces the high-pressure hydraulic cleaning system with a mechanical roller brush system. The roller brush with its rotationally symmetrical cylinder and bristle bundles provides mechanical abrasion for cleaning surfaces and joints without the damaging water pressure, thus substituting a mechanical cleaning mechanism for a hydraulic one.
Solution Approach 2:
The patent changes the cleaning parameter from high-pressure water jet to controlled mechanical rotation speed (50-500 rpm). This parameter change allows effective cleaning through mechanical action while avoiding the harmful effects of high-pressure water penetration into joints.
2Ease of operation
If rotating brushes with axis perpendicular to surface are used for surface cleaning, then surface sweeping is achieved, but penetration depth into irregularities is very low
Solution Approach 1:
The patent employs asymmetric bristle bundle arrangement where bundles are positioned at different radial positions on the roller brush. This asymmetry allows bristles at different positions to contact surface irregularities at different depths, enabling the brush to penetrate into grooves and joints more effectively while maintaining surface cleaning capability.
Solution Approach 2:
The patent changes the brush orientation from vertical axis (perpendicular to surface) to horizontal axis (parallel to surface). This dimensional change allows the roller brush to roll over and penetrate into surface irregularities and joints, achieving both surface cleaning and deep penetration into grooves simultaneously.
3Device complexity
If single-type bristle roller brush is used for cleaning, then device simplicity is maintained, but adaptability to different surface types is limited
Solution Approach 1:
The patent divides the roller brush surface into multiple zones with different bristle characteristics. Different bundles of bristles have different lengths, hardness, and materials suited for specific surface types. This local differentiation allows the single roller brush to adapt to various surface textures and materials without requiring multiple separate brushes.
Solution Approach 2:
The patent designs a universal roller brush that can clean multiple surface types (smooth, structured, porous, sensitive) with a single device. By incorporating diverse bristle bundles with varying properties, the brush achieves multi-functionality, replacing the need for multiple specialized brushes while maintaining relatively simple device structure.
4Length of moving object
If support wheels are added to enable deep surface contact, then penetration into irregularities is improved, but device complexity increases
Solution Approach 1:
The roller brush design allows the brush itself to perform the function of support and deep contact through its cylindrical structure and bristle arrangement. The brush rolls directly on the surface without requiring separate support wheels, achieving penetration into irregularities while maintaining structural simplicity. The bristles naturally conform to surface contours, providing self-adjusting contact.
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 solution allows for thorough removal of dirt, moss, and algae from surfaces and joints, reducing oscillations and damage, while accommodating different surface types and textures, providing a two-stage cleaning effect with soft and hard bristles for efficient cleaning and maintenance.
Implementation Method 1
a first plurality of first bundles of bristles with first bristles and a second plurality of second bundles of bristles with second bristles are arranged on the cylinder surface
Implementation Method 2
thorough removal of dirt, moss, and algae from surfaces and joints
Data Source
AI summary
The invention relates to a roller brush, in particular for a cleaning and/or care device, preferably for floor covering in the form of tiles, natural, artificial, blocks of concrete or wood, with a rotationally symmetrical cylinder which comprises a cylinder surface. At least one first plurality of a first bundle of bristles with a first brush and a second plurality of a second bundle of bristles with a second brush is arranged on the cylinder surface. The invention is characterised in that the first bundle of bristles are different from the second bundle of bristles.