Spiral Drum Brush Nozzle for Carpet Debris Winding Control

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Solution Overview

Problem

Existing vacuum cleaners face difficulties in cleaning deep inside surfaces like carpets due to foreign substances getting caught between the blades of drum brushes, leading to hindered operation and reduced cleaning efficiency.

Innovation Solution

A suction nozzle apparatus with a drum brush featuring a spiral blade design and foreign substance collecting grooves, along with a cutting member that uses friction or heat to remove accumulated substances, ensuring smooth operation by preventing foreign substances from being caught and facilitating their removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a drum brush with blades is used to clean deep inside surfaces, then cleaning capability is improved, but foreign substances get caught between the blades causing operational hindrance

Engineering Contradiction:

Improvecleaning capabilityVSAvoidsmooth operation

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The drum brush is segmented into multiple functional components: spiral blades for loosening debris, collecting grooves for capturing foreign substances, and cutting members for severing accumulated materials. This segmentation allows each component to perform its specific function, preventing operational hindrance while maintaining cleaning effectiveness

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The harmful accumulation of foreign substances is extracted from the drum brush system through dedicated collecting grooves that capture and remove debris before it can interfere with blade operation. The cutting members further extract accumulated substances by severing them, preventing operational hindrance

Inventive Principle:

Principle #2Taking out (Extraction)

2Productivity

If blades are configured to strike and separate foreign substances from deep surfaces, then cleaning effectiveness is improved, but foreign substances accumulate and wound around the blade increasing load

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidrotation load

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The collecting grooves are positioned to capture foreign substances before they can accumulate and wound around the blades. This preliminary action of capturing debris prevents the subsequent problem of accumulation and increased rotational load

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The spiral configuration of the blades and grooves converts the potentially harmful winding action into a beneficial mechanism. The spiral shape guides foreign substances into the collecting grooves rather than allowing them to randomly accumulate, transforming the winding motion from a problem into a solution for debris collection

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Adaptability or versatility

If a drum brush structure is used to reach deep inside surfaces, then access to hidden areas is improved, but foreign substances get caught in grooves and piles hindering operation

Engineering Contradiction:

Improveaccess to deep surfacesVSAvoidsmooth operation

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The drum brush is divided into functional segments: spiral blades for mechanical agitation, collecting grooves for debris capture, and cutting members for severing accumulated materials. This segmentation allows the brush to access deep surfaces while preventing operational hindrance through systematic debris management

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The collecting grooves act as intermediary structures between the blades and the exterior, capturing foreign substances that would otherwise get caught between blades and hinder operation. This intermediary mechanism maintains smooth operation while preserving access capability

Inventive Principle:

Principle #24Intermediary (Mediator)

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 apparatus effectively detaches and removes foreign substances from the drum brush, maintaining its operational efficiency and enhancing the cleaning capability of vacuum cleaners by preventing accumulation and hindrance.

Implementation Method 1

a cutting member configured to remove a foreign substance wound around the drum brush

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

a cutting member configured to remove the foreign substance wound around the foreign substance collecting groove through friction force or heat

Methodology Applied

Scientific EffectHeat: Heating

Data Source

PatentUS10251520B2Suction nozzle apparatus and cleaner having the same

Publication Date: 2019.04.09 SAMSUNG ELECTRONICS CO LTD

AI summary

A suction nozzle apparatus and a cleaner having the same includes a casing of which a mounting groove is formed in a bottom surface, a drum brush rotatably coupled to the mounting groove of the casing, and a cutting member configured to remove a foreign substance wound around the drum brush. The drum brush includes a drum core in which at least one foreign substance collecting groove that the foreign substance is wound is formed in an outer circumference and a blade formed in a spiral form in the outer circumference of the drum core.