Vacuum Head with Tool-Free Interchangeable Floor Cleaning Units

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Solution Overview

Problem

Current floor cleaning devices require multiple wands for different cleaning tasks, leading to increased transportation and storage space needs, as well as high costs and complexity due to metallic coupling members that corrode and require tools for attachment and removal.

Innovation Solution

A floor cleaning device with a vacuum head and detachable floor engaging units, where the rail is rotationally molded with the vacuum head, allowing for manual attachment and detachment without tools, eliminating the need for multiple devices and reducing complexity and weight by avoiding metallic coupling members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate cleaning devices are used for different floor cleaning tasks, then each device can be optimized for its specific function, but transportation and storage space requirements increase significantly

Engineering Contradiction:

Improvecleaning task specializationVSAvoidtransportation and storage space

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent implements a universal vacuum head design that can perform multiple cleaning functions through interchangeable floor engaging units. The vacuum head serves as a platform that accepts different attachments (carpet cleaning units, hard surface cleaning units, water extraction units), allowing a single device to replace multiple specialized devices and thereby reduce transportation and storage space requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The cleaning system is divided into modular components: a base vacuum head and separate interchangeable floor engaging units. This segmentation allows each unit to be optimized for specific cleaning tasks while being independently attachable and detachable, enabling the system to function as multiple specialized devices when needed but store compactly when not in use.

Inventive Principle:

Principle #1Segmentation

2Strength

If metallic coupling members are used to attach floor engaging units, then strong mechanical connection is achieved, but corrosion occurs and tool removal becomes necessary

Engineering Contradiction:

Improvemechanical connection strengthVSAvoidattachment and removal ease

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The patent replaces traditional metallic mechanical fastening systems with a plastic snap-fit coupling mechanism. The coupling member includes a body with a recess that receives the floor engaging unit, and a resilient arm that provides snap-fit engagement. This eliminates corrosion issues associated with metal while maintaining sufficient connection strength through the resilient plastic material and snap-fit design that allows tool-free attachment and removal.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The coupling member utilizes changes in physical parameters of the plastic material, specifically its resilience and elasticity. The resilient arm can deform to allow insertion of the floor engaging unit and then springs back to lock it in place, providing both strong connection and easy release by applying force to the release tab that overcomes the elastic retention force.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If complex coupling mechanisms with multiple fasteners are used, then secure attachment is achieved, but device complexity and cost increase

Engineering Contradiction:

Improveattachment securityVSAvoidcoupling mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates unnecessary components from traditional coupling mechanisms. Instead of using multiple fasteners, bolts, or complex locking systems, the design uses a single integrated coupling member with a snap-fit arm and release tab. This simplified mechanism achieves reliable attachment through the resilient snap-fit engagement while allowing easy one-handed release, significantly reducing part count and assembly complexity compared to conventional multi-fastener systems.

Inventive Principle:

Principle #2Taking out (Extraction)

4Volume of moving object

If traditional multi-purpose cleaning devices are used, then fewer devices need to be carried, but they cannot be selectively adapted to different cleaning tasks

Engineering Contradiction:

Improvetransportation and storage spaceVSAvoidcleaning task adaptability

Core Design Contradiction:

Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic adaptability to the vacuum head through interchangeable floor engaging units. Rather than a fixed multi-purpose design, the system allows the user to dynamically change the floor engaging unit based on the specific cleaning task at hand. The quick-connect coupling mechanism enables rapid switching between different units (carpet, hard surface, water extraction) without tools, providing task-specific optimization while maintaining a compact single-device form factor for transportation and storage.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20240000284A1Floor cleaning device with attachable floor engaging units

Publication Date: 2024.01.04 BETTER CLEANING SYST

AI summary

A vacuum head of a floor cleaning device is configured so as to receive differing floor engaging and cleaning units thereto. The floor engaging and cleaning unit may be securely connected to the vacuum head using a manually actuated locking mechanism.