Suction device with a dirt collection container

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Solution Overview

Problem

Existing mobile suction devices for construction or workshop use require cumbersome disposal methods, often releasing dust and dirt into the environment when emptying, as they need to be moved as a whole to a disposal site, which is inefficient and unhygienic.

Innovation Solution

A mobile suction device design featuring a detachable, compact dirt collection container that fits into the suction device housing, allowing for easy removal and disposal without needing to move the entire device, equipped with a main filter that prevents dust from entering the suction unit and can be cleaned, and a container attachment for additional storage and operational elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the entire suction device is moved to a disposal site for emptying, then all dirt can be disposed of, but the device becomes cumbersome and dust is dispersed into the environment

Engineering Contradiction:
Improvedisposal operationVSAvoiddust dispersal
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The suction device is divided into a stationary housing containing the suction unit and a removable dirt collection container. This segmentation allows the dirt container to be separated and disposed of independently at different locations, eliminating the need to move the entire device and preventing dust dispersal during transport.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dirt collection container is extracted as a separate removable component from the suction device housing. This extraction enables the container to be taken to disposal sites independently while the main housing remains stationary, solving both the mobility and dust containment problems.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If the suction device is designed as a single integrated unit, then structural simplicity is achieved, but disposal requires moving the entire heavy device

Engineering Contradiction:
Improvestructural complexityVSAvoiddevice weight
Core Design Contradiction:
Device complexityVSWeight of moving object

Solution Approach 1:

The device is segmented into a heavy stationary housing and a lightweight removable dirt container. This segmentation reduces the weight that must be moved during disposal operations while maintaining the functional integrity of the complete system when assembled.

Inventive Principle:
Principle #1Segmentation

3Object-affected harmful factors

If a filter bag is used to collect dirt, then dust is contained, but the filter bag must be removed and disposed of separately

Engineering Contradiction:
Improvedust containmentVSAvoiddisposal operation
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The filter bag is merged with the dirt collection container, forming an integrated assembly where the filter bag lines the container interior. This combination allows both the filter bag and collected dirt to be removed and disposed of as a single unit, simplifying the disposal operation while maintaining effective dust containment.

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

This design simplifies disposal by allowing the lightweight dirt collection container to be carried to a disposal site separately, reducing dust dispersal and enhancing hygiene, while the main filter ensures efficient dust retention and the container attachment provides additional storage and operational functionality.

Implementation Method 1

a suction unit (24) arranged in the suction device housing (21) for generating a suction flow

Methodology Applied
Scientific EffectSuction flow: Suction

Implementation Method 2

a filter arrangement (26) for retaining dirt contained in the suction flow

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP2829212B1Suction device with a dirt collection container
Publication Date: 2019.06.12 FESTOOL GMBH
  • EP2829212B1 patent drawingFigure 1~2
  • EP2829212B1 patent drawingFigure 3~5
  • EP2829212B1 patent drawingFigure 6~9

AI summary

The invention relates to a mobile suction device (10), in particular a construction site or workshop suction device, which has a suction housing (21) and a suction unit (24) arranged therein for generating a suction flow (S), the suction housing (21) having a suction inlet (27) for connecting a suction line (14) and in the suction housing (21) upstream of the suction unit (24) a filter arrangement (26) and a dirt collection chamber (25) are arranged. The dirt collection chamber (25) is provided in a dirt collection container (46) which can be inserted into a container receptacle (45) of the vacuum cleaner housing (21) and has a suction flow outlet (60) there when the dirt collection container (46) is in a suction operating position. of the dirt collection container (46) is flow-connected to a suction unit inlet (61) of the suction unit (24), wherein the dirt collection container (46) can be removed from the suction housing (21) in order to remove dirt collected in the dirt collection space (25), and that at least one filter holder (47, 48) for holding at least one filter element (49, 50) of the filter arrangement (26) is provided in the dirt collecting container (46).