Dual-Head Vacuum Nozzle for Corner Access and Open-Surface Suction

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Solution Overview

Problem

Traditional vacuum cleaner nozzles with rectangular heads struggle to effectively access corners and difficult areas due to reduced suction power and limited maneuverability, while triangular heads excel in these areas but are not universally applicable.

Innovation Solution

A dual-head nozzle design featuring a rectangular main head and a detachable triangular head with adjustable suction distribution, allowing for optimal suction performance in both open areas and tight spaces by switching between single-head or combined suction modes, with automatic obstacle detection and adaptive suction adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a rectangular head nozzle is used, then suction performance on open surfaces is optimized, but access to corners and difficult areas is limited

Engineering Contradiction:

Improvesuction performanceVSAvoidaccess to corners

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The nozzle is divided into two separate heads: a first head with a rectangular suction opening optimized for open surfaces, and a second head with a triangular suction opening optimized for corners and difficult areas. This segmentation allows each head to be specialized for its intended function while both can be used with the same vacuum cleaner body.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The vacuum cleaner nozzle is designed to be universally applicable by providing multiple heads that can be interchanged on the same body. The distributor means also provides multi-functionality by being able to direct suction through either the first suction opening, the second suction opening, or both simultaneously, making the system adaptable to various cleaning scenarios.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a triangular head nozzle is used, then access to corners and difficult areas is improved, but suction performance on open surfaces is reduced

Engineering Contradiction:

Improveaccess to cornersVSAvoidsuction performance

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The distributor means provides dynamic switching capability, allowing the user to select which head (first or second) the suction should pass through at any given time. This dynamic adjustment enables optimal performance for the current cleaning task, whether using the rectangular head for open areas or the triangular head for corners.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If two separate nozzles are equipped, then optimal performance in all circumstances is achieved, but device complexity and cost increase

Engineering Contradiction:

Improveperformance in all circumstancesVSAvoidnumber of nozzles

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Instead of requiring two separate vacuum cleaner nozzles, this invention merges two different head designs (rectangular and triangular) into a single interchangeable nozzle system. Both heads can be used with the same vacuum cleaner body, reducing the need for multiple complete nozzle assemblies while maintaining optimal performance for different cleaning scenarios.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Use of energy by moving object

If suction power is reduced to meet energy labels, then energy efficiency is improved, but dust removal efficiency is reduced

Engineering Contradiction:

Improveenergy efficiencyVSAvoiddust removal efficiency

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The distributor means allows the suction flow to be concentrated locally through either the first suction opening or the second suction opening depending on the cleaning task. This local concentration of suction power maintains effective dust removal even when the overall suction power is reduced to meet energy efficiency requirements.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP3530169B2Vacuum cleaner nozzle combining a first suction head and a second suction head

Publication Date: 2023.08.30 SEB SA

Figure 1~3
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Figure 6~7

AI summary

The invention relates to a vacuum cleaner nozzle (1) designed to be moved across a surface to be vacuumed, comprising a first head (2) which includes a first suction duct (6) connected to a first suction inlet (7) arranged on the underside of said first head. The nozzle (1) includes a second head (3) which extends forward from the first head (2) and which includes a second suction duct (9) connected to a second suction inlet (4) arranged on the underside of said second head. The nozzle (1) also includes distribution means for modifying the distribution of suction between the first suction inlet (7) and the second suction inlet (4). The invention also relates to a vacuum cleaner equipped with such a nozzle (1).