Integrated Hard Floor Nozzle Liquid Tank for Wet-Dry Mobility

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Solution Overview

Problem

Existing floor nozzles for hard floors require cumbersome handling due to separate containers for cleaning liquid, which complicate the transition from wet to dry cleaning and necessitate separate connecting lines, reducing user convenience and mobility.

Innovation Solution

A floor nozzle design with an integrated liquid tank directly on the nozzle, allowing for independent wet cleaning without external connections, featuring a detachable tank with a carrying handle and transparent viewing window for fill level monitoring, and a sealed cap to prevent accidental leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate container for cleaning liquid is arranged on the suction pipe, then the liquid supply function is achieved, but the work becomes cumbersome and the device complexity increases

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The liquid tank is integrated directly into the floor nozzle housing, merging the liquid storage function with the nozzle structure. This eliminates separate connecting lines and external containers, reducing device complexity while improving ease of operation during floor cleaning tasks

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If a separate container for cleaning liquid is used, then the liquid supply function is achieved, but connecting lines must be plugged in or unplugged reducing mobility

Engineering Contradiction:
ImprovemobilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The liquid tank is built into the floor nozzle structure, eliminating the need for separate connecting lines between the nozzle and external liquid supply. This integration maintains mobility by removing plugging/unplugging requirements while reducing device complexity through structural merging

Inventive Principle:
Principle #5Merging (Combining)

3Duration of action of moving object

If the liquid tank is integrated in the floor nozzle, then sufficient liquid is available over a long period, but the liquid tank occupies space in the floor nozzle

Engineering Contradiction:
Improveduration of actionVSAvoidvolume of moving object
Core Design Contradiction:
Duration of action of moving objectVSVolume of moving object

Solution Approach 1:

The liquid tank is nested within the floor nozzle housing structure, utilizing the internal volume of the nozzle body. This nesting approach provides sufficient liquid capacity for extended cleaning operations while minimizing the overall volume occupied by integrating the tank within existing structural boundaries

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP2063751B1Hard floor nozzle
Publication Date: 2011.10.19 BSH HAUSGERATE GMBH
  • EP2063751B1 patent drawingFigure 1
  • EP2063751B1 patent drawingFigure 2
  • EP2063751B1 patent drawingFigure 3

AI summary

The invention relates to a hard floor nozzle which is suitably designed for vacuum-cleaning and wiping. The aim of the invention is to improve the arrangement of the container for the cleaning liquid. For this purpose, the liquid reservoir (11) is arranged on the floor nozzle.