Vacuum Cleaner Handle Arc Design for Gravity-Center Stability

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Solution Overview

Problem

Conventional vacuum cleaners with handles tend to tilt when gripped, compromising operability due to the compact internal component layout.

Innovation Solution

The vacuum cleaner design positions the dust collecting unit and power supply unit on either side of the gravity center, with the handle formed in an arc shape centered at the gravity center, ensuring the gravity center remains unchanged when gripped, thus maintaining a stable posture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If components inside the cleaner main body are arranged close to each other to achieve compactness, then the cleaner main body becomes more compact, but the cleaner main body tends to tilt when the handle is gripped, deteriorating operability

Engineering Contradiction:

Improvecleaner main body compactnessVSAvoidoperability in handle-gripped state

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The dust collecting unit and power supply unit are positioned asymmetrically on both sides of the gravity center, creating a balanced weight distribution that prevents tilting when the handle is gripped, thereby resolving the contradiction between compactness and operability

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The handle is designed with an arc shape extending in a direction approximately perpendicular to the longitudinal direction of the cleaner main body, utilizing a different spatial dimension to achieve balance without compromising compactness

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If the handle is positioned outside the internal components to achieve compact internal layout, then internal component compactness is improved, but the cleaner main body tilts when the handle is gripped

Engineering Contradiction:

Improveinternal component compactnessVSAvoidposture stability when handle is gripped

Core Design Contradiction:

Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The dust collecting unit and power supply unit serve as counterweights positioned on both sides of the gravity center, balancing the handle position outside the internal components and preventing tilting to maintain posture stability

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The handle is formed in an arc shape centered at the gravity center position, with the arc extending in a direction approximately perpendicular to the longitudinal direction of the cleaner main body, ensuring the gravity center remains substantially unchanged when gripped

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentEP3491990B1Electric cleaner

Publication Date: 2022.12.28 TOSHIBA LIFESTYLE PROD & SERVICES CORP

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AI summary

A vacuum cleaner is provided with a cleaner main body having an electric blower and a handle. The handle is shaped such that a gravity center position of the cleaner main body remains substantially unchanged in a state in which any one region is gripped.