Modular Vacuum Cleaner Nozzle Assembly for Easier Redesign

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Solution Overview

Problem

The development of vacuum cleaner nozzles requires significant financial and personnel investments due to the need for constant redesign and adaptation to new functionalities and design requirements, leading to high production costs.

Innovation Solution

A vacuum cleaner nozzle design featuring a connecting part that serves as a holder for both the upper and lower shells, allowing for decoupling and modular functionality, enabling changes in design or functionality without affecting the entire nozzle, with features like detachable fastening and simplified assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the upper nozzle shell and lower nozzle shell are directly fastened together to form a complete nozzle, then the structural integrity is maintained, but any design or functionality changes require complete redesign of the entire nozzle

Engineering Contradiction:
Improveadaptability to new requirementsVSAvoidredesign effort
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The nozzle is divided into three separate components: upper nozzle shell, connecting part, and lower nozzle shell. The connecting part serves as an intermediate carrier element that can be independently modified. This segmentation allows changes to be made to individual components without affecting the entire nozzle assembly, thereby improving adaptability while reducing overall redesign complexity.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If bearing points are constructed as single integrated components, then the assembly process is simplified, but the assembly of wheel axles becomes complicated

Engineering Contradiction:
Improveassembly simplicityVSAvoidassembly complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The bearing points are divided into two separate parts: bearing points provided in the connecting part and counter-bearings provided in the lower nozzle shell. This segmentation allows wheel axles to be simply placed on the lower nozzle shell during assembly, with the bearing encloses them automatically when the connecting part is attached, eliminating complicated assembly procedures while maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If all functionalities are integrated into the upper and lower nozzle shells, then the nozzle structure is compact, but modular design and selective replacement are not possible

Engineering Contradiction:
Improvemodular design capabilityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connecting part is identified as a separate carrier element that can serve as a holder for both shells while potentially housing certain functionalities. This creates a modular structure where the upper nozzle shell module can be used for design purposes while functionalities are distributed between the connecting part and lower shell, enabling selective replacement and adaptation without increasing overall complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP1924183B1Vacuum cleaner nozzle
Publication Date: 2015.08.12 BSH HAUSGERATE GMBH
  • EP1924183B1 patent drawingFigure 1
  • EP1924183B1 patent drawingFigure 2
  • EP1924183B1 patent drawingFigure 3

AI summary

The invention relates to a vacuum cleaner nozzle with a nozzle lower shell (2) functioning as a sliding bottom and with a nozzle upper shell (1) serving as a nozzle housing. In addition, the vacuum cleaner nozzle has a suction fitting (8) connected to the suction channel (10). The suction channel (10) runs between the nozzle upper shell (1) and nozzle lower shell (2). A connecting part (3) is placed between the nozzle upper shell (1) and the nozzle lower shell (2), whereby both the nozzle upper shell (1) as well as the nozzle lower shell (2) can be fastened to said connecting part.