Removable Nozzle Plate Assembly for Maintainable Floor Cleaning

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Solution Overview

Problem

Existing powered floor cleaning tools lack significant advancements in maintainability and longevity, despite user and servicer demands for improved compactness, user adaptability, ease of use, and serviceability.

Innovation Solution

A floor cleaning tool design featuring a housing with a reservoir for cleaning solution, a resiliently deformable nozzle plate with apertures, and a conduit for fluid communication, allowing for easy removal and replacement of the nozzle plate for cleaning and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the nozzle plate is made fixed and integrated into the housing, then the structural integrity and sealing are improved, but the maintainability and ease of cleaning are worsened

Engineering Contradiction:
Improvestructural integrityVSAvoidmaintainability
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The nozzle plate is separated from the housing as a distinct, removable component. This segmentation allows the nozzle plate to be easily detached for cleaning or replacement while maintaining a secure connection during operation, thus resolving the contradiction between structural integrity and ease of maintenance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nozzle plate connection transitions from a fixed state during operation to a removable state during maintenance. This dynamic design allows the system to adapt between operational reliability and maintenance accessibility, enabling the nozzle plate to be securely attached when needed and easily removed for cleaning.

Inventive Principle:
Principle #15Dynamics

2Ease of repair

If the nozzle plate is made removable for easy cleaning, then the ease of maintenance is improved, but the risk of improper installation and leakage is worsened

Engineering Contradiction:
Improveease of cleaningVSAvoidsealing performance
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The nozzle plate design incorporates self-aligning features and intuitive installation mechanisms that guide the user into proper installation without requiring specialized knowledge or tools. This self-service approach ensures reliable sealing while maintaining ease of cleaning and replacement.

Inventive Principle:
Principle #25Self-service

3Duration of action of stationary object

If the floor cleaning tool is designed with multiple fixed components for durability, then the lifespan is improved, but the adaptability and ease of replacement are worsened

Engineering Contradiction:
ImprovelifespanVSAvoidease of replacement
Core Design Contradiction:
Duration of action of stationary objectVSAdaptability or versatility

Solution Approach 1:

The floor cleaning tool is divided into modular segments including the removable nozzle plate, brush assembly, and reservoir. This segmentation enables individual components to be replaced or upgraded without affecting the entire tool, thus extending the overall lifespan through selective maintenance while maintaining adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design allows worn or damaged components like the nozzle plate to be easily discarded and replaced with new or refurbished parts. This approach extends the overall tool lifespan by enabling recovery and replacement of individual components rather than discarding the entire device.

Inventive Principle:
Principle #34Discarding and recovering

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

The design enhances maintainability and prolongs the tool's lifespan by facilitating easy cleaning and replacement of key components, improving user experience and operational efficiency.

Implementation Method 1

a resiliently deformable nozzle plate coupled to the housing and defining a plurality of apertures; the resiliently deformable plate removable from the conduit and the housing for cleaning and replacement

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4085813B1Floor cleaning tool
Publication Date: 2025.05.28 DIVERSEY INC
  • EP4085813B1 patent drawingFigure 1~2
  • EP4085813B1 patent drawingFigure 3
  • EP4085813B1 patent drawingFigure 4

AI summary

A floor cleaning tool comprising a housing, a reservoir coupled to the housing and shaped to contain a cleaning solution and a nozzle plate that is resiliently deformable and coupled to the housing, the nozzle plate defining a plurality of apertures and in fluid communication with the reservoir to receive the cleaning solution and to dispense the cleaning solution through the apertures, wherein the nozzle plate is removable from the housing for cleaning and replacement.