Vacuum Cleaner Filter Tapping Mechanism for Ash Removal

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Solution Overview

Problem

Existing cleaning systems for filtering members in ash-cleaners often degrade the filtering member and reduce its performance, and water-based systems increase weight while not effectively preventing ash and dust dispersion.

Innovation Solution

A hitting-type cleaning system with a lever mechanism and fork-type beating element that manually impacts the filtering member to dislodge ashes, using a suitable tank within the ash-cleaner to collect them, thereby extending the life and efficiency of the filtering member and ash-cleaner.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If compressed air jets or axial compression systems are used to clean the filtering member, then cleaning effect is achieved, but the filtering member is degraded and its performance is reduced

Engineering Contradiction:
Improvecleaning effectVSAvoidfiltering member performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the harmful mechanical compression systems with a gentle mechanical tapping system. Instead of using compressed air jets or axial compression that degrade the filter, the invention uses a series of light striking elements that tap the filter surface to dislodge ash. This substitution of the cleaning mechanism resolves the contradiction by achieving effective cleaning without degrading the filtering member's performance.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the parameters of the cleaning action from high-force compression to low-force tapping. By using multiple light striking elements that deliver gentle taps rather than strong compression forces, the system achieves effective ash removal while preserving the filter's integrity and performance characteristics.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If water-based cleaning systems are used to prevent ash and dust dispersion, then ash containment is improved, but the ash-cleaner weight strongly increases

Engineering Contradiction:
Improveash dispersion preventionVSAvoidash-cleaner weight
Core Design Contradiction:
Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

The patent extracts the water-based containment system and replaces it with a dry mechanical tapping system. By removing the water reservoir and pumping mechanisms, the invention eliminates the source of excessive weight while still preventing ash dispersion through the action of light striking elements that gently dislodge and contain ash particles.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs simple, lightweight striking elements that can be easily replaced if needed, rather than using a complex, heavy water-based system. These simple mechanical components achieve ash containment without the weight penalty of water reservoirs and associated mechanisms.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Productivity

If strong compression or aggressive cleaning methods are used, then ash removal efficiency is improved, but the filtering member life is reduced

Engineering Contradiction:
Improveash removal efficiencyVSAvoidfiltering member life
Core Design Contradiction:
ProductivityVSDuration of action of stationary object

Solution Approach 1:

The patent uses periodic tapping action through multiple light striking elements that rhythmically tap the filter surface. This periodic gentle tapping effectively removes accumulated ash over time without the damaging effects of continuous strong compression, thereby maintaining both high ash removal efficiency and extended filter life.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent divides the cleaning function into multiple light striking elements distributed across the filter surface, rather than using a single strong compression point. This segmentation allows ash to be removed from multiple locations simultaneously through gentle taps, achieving efficient ash removal while preserving the filter's structural integrity and extending its service life.

Inventive Principle:
Principle #1Segmentation

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

This system ensures longer life and improved performance of the filtering member, facilitates easier maintenance, and reduces ash dispersion, enhancing cleaning efficiency and reducing motor damage from dust and ashes.

Implementation Method 1

a hitting portion adapted to externally hit the filtering member in order to externally carry out an hitting and shaking action on the filtering member

Methodology Applied
Scientific EffectImpact force: Impact Force

Implementation Method 2

an hitting and shaking action on the filtering member which generates the fall of ashes

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentEP2708173B1Hitting-type cleaning system of a filtering member for vacuum cleaner
Publication Date: 2016.11.09 FIRE & BOX SRL
  • EP2708173B1 patent drawingFigure 1
  • EP2708173B1 patent drawingFigure 2~3
  • EP2708173B1 patent drawingFigure 4

AI summary

A hitting-type cleaning system is described, of a filtering member for vacuum cleaner, in particular an ash-cleaner (6), containing at least one filtering member (3), comprising at least one hitting means (1) of said filtering member (3).