Automatically moving cleaning device

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Solution Overview

Problem

Existing automatically moving cleaning devices are limited to cleaning horizontal surfaces and cannot effectively clean above-floor areas, such as skirting boards, due to their design and lack of suitable cleaning elements.

Innovation Solution

Incorporating a rotatable and/or pivotable overhead cleaning element with a height difference of 3 cm or more from the lowest standing surface, allowing for mechanical cleaning of overhead surfaces, which can be adapted to varying heights and equipped with brushes, rollers, or combs for effective dust and dirt removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a cleaning device is designed to clean horizontal surfaces, then it can effectively clean floors, but it cannot clean above-floor surfaces such as skirting boards

Engineering Contradiction:
Improvecleaning surface coverageVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cleaning device is equipped with both a surface cleaning device for horizontal surfaces and an overhead cleaning element for above-floor surfaces, allowing a single device to perform multiple cleaning functions including floor cleaning, skirting board cleaning, and plateau cleaning without requiring separate specialized devices

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

Solution Approach 2:

The overhead cleaning element is designed to be rotatable and/or pivotable about an axis of rotation, enabling it to dynamically adjust its position and orientation to access and clean various above-floor surfaces at different heights and angles, thereby adapting to different cleaning scenarios

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a flexible cleaning cloth is used on the underside of the housing, then it can clean lower areas of skirting boards, but it cannot clean above-floor surfaces due to low inherent rigidity

Engineering Contradiction:
Improvecleaning capabilityVSAvoidcleaning element rigidity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The overhead cleaning element is designed to be rotatable and/or pivotable about an axis of rotation, enabling it to dynamically adjust its position and orientation to access and clean various above-floor surfaces at different heights and angles

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cleaning device extends its cleaning capability from the horizontal plane to the vertical dimension by positioning the overhead cleaning element at a height of 3 cm or more above the lowest standing surface, allowing it to reach plateaus and above-floor surfaces that flexible cloths cannot access

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

3Adaptability or versatility

If the overhead cleaning element is positioned 3 cm or more above the lowest standing surface, then it can clean above-floor surfaces, but the device structure becomes more complex

Engineering Contradiction:
Improveabove-floor cleaning capabilityVSAvoidoverhead cleaning mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cleaning device integrates both surface cleaning and overhead cleaning functions into a single unified system, where the overhead cleaning element can be rotated or pivoted to perform cleaning tasks on above-floor surfaces, eliminating the need for separate cleaning devices

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

Solution Approach 2:

The overhead cleaning element is designed to automatically rotate or pivot during operation, using the device's own motion and integrated motors to position the cleaning element appropriately, reducing the need for manual intervention and simplifying operation despite the added mechanical complexity

Inventive Principle:
Principle #25Self-service

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

Enables simultaneous cleaning of both floor and above-floor surfaces, improving cleaning efficiency and coverage by allowing the cleaning device to reach and clean surfaces typically missed by conventional cleaning robots, with the overhead cleaning element rotating or pivoting to sweep dust and dirt into a collection area.

Implementation Method 1

mechanical cleaning of an overhead surface... with brushes, rollers, or combs for effective dust and dirt removal

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

overhead cleaning element for mechanical cleaning of an overhead surface

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 3

the overhead cleaning element rotating or pivoting to sweep dust and dirt into a collection area

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 4

sweep dust and dirt into a collection area

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP3351157B1Automatically moving cleaning device
Publication Date: 2019.09.11 VORWERK & CO INTERHOLDING GMBH
  • EP3351157B1 patent drawingFigure 1
  • EP3351157B1 patent drawingFigure 2~3
  • EP3351157B1 patent drawingFigure 4~5

AI summary

The invention relates to an automatically moving cleaning device (1) with a surface cleaning device (2) for cleaning a surface (3) to be cleaned. In order to also be able to clean an area above the floor (5), it is proposed that the cleaning device (1) additionally have an area above the floor (4) for mechanical cleaning of an area above the floor (5) which is offset in height relative to the area (3), the above-floor cleaning element (4) is rotatable and/or pivotable about an axis of rotation (6) and at least a cleaning partial area of ​​the above-floor cleaning element (4) has a height difference of approximately 3 cm or more to a lowest standing surface (7) in relation to an orientation of the cleaning device (1) that is usual for a cleaning operation. of the cleaning device (1). In addition, the invention also relates to a method for operating a self-propelled cleaning device (1).