Suction device with a suction inlet

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Solution Overview

Problem

Existing mobile suction devices for construction sites or workshops face challenges in easy handling and disposal of dirt collection, as they often require the entire device to be moved to a disposal site, which is cumbersome, especially when they cannot be rolled.

Innovation Solution

A mobile suction device design where the dirt collection container can be easily removed and inserted into the suction device housing, featuring a container attachment that allows for stacking and easy access to the suction inlet, along with a filter system for hygienic disposal, and a container attachment that provides additional storage and operational functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the suction inlet is arranged on the upper side of the suction device housing, then easy access to the suction inlet is achieved, but stacking another container on the upper side is prevented

Engineering Contradiction:
Improveaccess to suction inletVSAvoidstacking capability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The suction device housing is divided into a basic housing and a cover that can be separated. The suction inlet is arranged on the cover, which can be detached from the basic housing. This segmentation allows the cover with the suction inlet to be accessed independently while the basic housing remains available for stacking containers.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the entire suction device is moved to a disposal site, then dirt collection can be emptied, but handling becomes cumbersome especially when the device cannot be rolled

Engineering Contradiction:
Improvedirt disposalVSAvoiddevice weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The dirt collection container is extracted as a separate removable component from the suction device housing. Users can remove the dirt collection container independently and transport it to disposal sites, avoiding the need to move the entire heavy suction device. This extraction principle significantly reduces the weight that needs to be transported for dirt disposal.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The suction device is segmented into separable components: the basic housing containing the suction unit and the removable dirt collection container. This segmentation enables independent handling of the lightweight dirt collection container for disposal purposes while the heavier basic housing remains stationary.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the suction inlet is arranged on the basic housing, then stacking is possible, but access to the suction inlet becomes difficult

Engineering Contradiction:
Improvestacking capabilityVSAvoidaccess to suction inlet
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The suction device housing is divided into a basic housing and a cover that can be separated. The suction inlet is arranged on the cover, which can be detached from the basic housing. This segmentation allows the cover with the suction inlet to be accessed independently while the basic housing remains available for stacking containers.

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 design simplifies the handling and disposal of dirt by allowing the lightweight dirt collection container to be taken to the disposal site separately, enhancing user convenience and hygiene, while maintaining the suction device's compactness and 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 generation:

Implementation Method 2

a filter arrangement (26) for retaining dirt contained in the suction flow in the dirt collection space (25)

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP2829211B1Suction device with a suction inlet
Publication Date: 2020.10.28 FESTOOL GMBH
  • EP2829211B1 patent drawingFigure 1~2
  • EP2829211B1 patent drawingFigure 3~5
  • EP2829211B1 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 suction housing (21) on its upper side (69) for stacking a container (400, 450) along a stacking direction (H). The suction device (10) provides for the suction inlet (27) to be arranged on the upper side (69) of the suction housing (21) provided for stacking the upper container (400, 450).