A surface cleaning apparatus

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Solution Overview

Problem

Existing surface cleaning apparatuses lack a convenient and ergonomic design for detaching and emptying the dirt collection chamber, making it difficult for users to access and dispose of collected dirt efficiently.

Innovation Solution

A surface cleaning apparatus with a pivotally connected dirt separation device that includes an actuator member and coupling device, allowing the user to detach and handle the dirt separation device with one hand, facilitating easy emptying and reattachment, and featuring a cyclonic separator for efficient dirt collection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the dirt separation device is made detachable for easy emptying, then the ease of operation is improved, but the device complexity increases due to additional coupling mechanisms

Engineering Contradiction:
Improveease of emptying dirt collection chamberVSAvoidcomplexity of coupling device
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The dirt separation device is segmented from the main housing, allowing it to be detached and removed independently. This segmentation enables the user to easily empty the dirt collection chamber by separating it from the main body, directly improving ease of operation while the coupling mechanism manages the complexity aspect.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A coupling device acts as an intermediary mechanism between the dirt separation device and the housing. This coupling device includes coupling members that engage with each other to securely attach or detach the dirt separation device, providing a controlled interface that balances ease of operation with manageable device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the dirt separation device is positioned forwardly of the suction source, then the ease of operation is improved for access, but the center of gravity shifts affecting handling stability

Engineering Contradiction:
Improveaccess to dirt collection chamberVSAvoidhandling stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The dirt separation device is positioned forwardly of the suction source, creating a dynamic balance that allows easy access for the user's hand while the overall device maintains stability through the distributed weight arrangement and ergonomic handle design. This dynamic positioning optimizes both accessibility and handling characteristics.

Inventive Principle:
Principle #15Dynamics

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

Enables convenient and ergonomic access to the dirt collection chamber for emptying, improving user experience and efficiency in dirt disposal while maintaining effective dirt separation and collection capabilities.

Implementation Method 1

a separator in the form of a cyclonic separator which causes dirt-laden air to flow in a swirling motion around the body of the separator to cause the dirt to separate from the dirt-laden air

Methodology Applied
Scientific EffectCyclonic separation: Cyclone Separation

Implementation Method 2

causes dirt-laden air to flow in a swirling motion around the body of the separator to cause the dirt to separate from the dirt-laden air

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP3641611B1A surface cleaning apparatus
Publication Date: 2022.12.28 TECHTRONIC FLOOR CARE TECH LTD
  • EP3641611B1 patent drawingFigure 1
  • EP3641611B1 patent drawingFigure 2
  • EP3641611B1 patent drawingFigure 3

AI summary

A surface cleaning apparatus for cleaning a surface including: a housing supporting: a suction source; a dirt separation device for separating dirt from dirt-laden air; a dirt separation device including a dirt collection chamber for receiving dirt from the dirt separation device, wherein the dirt collection chamber has an elongate axis (A); a user graspable handle having an elongate axis (C), a passage member for transporting dirt-laden air to the dirt separation device, the passage member having an elongate axis (B); a coupling device moveable between a first position in which detachment of the body from the housing is inhibited and a second position in which detachment of the body is permitted; an actuator member for effecting movement of the coupling device between its first and second positions, wherein the elongate axis (B) of the passage member and the elongate axis (C) of the user graspable handle lie in a plane (P1), and the elongate axis (A) of the dirt collection chamber intersects the plane (P1).