Vaccum cleaner and nozzle for cleaner

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Solution Overview

Problem

Existing vacuum cleaners have a limited cleanable area due to a fixed suction nozzle with a brush, and they struggle to effectively remove hairs and pet hairs from the brush, which complicates maintenance.

Innovation Solution

A nozzle design with movable members that allow the suction area to be varied, incorporating a brush cleaning unit with a variable width that can move along with the brushes to separate foreign substances, including hairs, by using a lever and transmission mechanism to increase cleaning efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the suction nozzle has a fixed brush area, then the structure is simple, but the cleanable area is limited

Engineering Contradiction:
Improvecleanable areaVSAvoidnozzle structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The suction nozzle incorporates movable members that can slide relative to the nozzle body, transforming the fixed brush area into a dynamic, adjustable configuration. This allows the cleanable area to be varied by moving the movable members along the nozzle, enabling adaptation to different cleaning requirements while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If an air jet is used to clean the brush, then small particles are separated, but hairs and pet hairs cannot be easily removed

Engineering Contradiction:
Improvebrush maintenanceVSAvoidhair removal effectiveness
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The invention introduces a dedicated brush cleaning unit as an intermediary mechanism between the brush and the user. This unit includes cleaning members that physically contact and remove hairs and pet hairs from the brush, providing a more effective solution than air jets alone while maintaining ease of operation through automated or assisted cleaning action.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the brush cleaning unit is stationary, then the structure is simple, but it cannot adapt to variable suction nozzle width

Engineering Contradiction:
Improvecleaning unit width adaptationVSAvoidcleaning unit structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The brush cleaning unit is designed with movable components that can adjust their position and width to match the variable configuration of the suction nozzle. As the movable members of the suction nozzle move, the brush cleaning unit accordingly adjusts to maintain proper alignment and cleaning effectiveness, enabling adaptation without excessive structural complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3028618B1Vaccum cleaner and nozzle for cleaner
Publication Date: 2018.02.07 LG ELECTRONICS INC
  • EP3028618B1 patent drawingFigure 1
  • EP3028618B1 patent drawingFigure 2
  • EP3028618B1 patent drawingFigure 3

AI summary

Provided is a nozzle for a cleaner, including a suction part 310 having a suction port 31 and a main brush 312; and a movable member 320,330 movably installed at the suction port 31 and having a subsidiary brush 324, 334.