Vacuum Spot-Cleaning Attachment With Retractable Wheels
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Solution Overview
Problem
Existing cleaning system attachments for vacuum cleaners are bulky and unwieldy due to the inclusion of wheels, making them difficult to maneuver and store, especially when used for spot cleaning with fluid dispensing systems.
Innovation Solution
A compact spot-cleaning attachment for vacuum cleaners featuring retractable wheels that can be easily rotated from a usage position to a storage position, allowing the attachment to be hung on a wall, with a tank for cleaning fluid and a dispensing system that includes a hose, valve, and flow divider for efficient fluid distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wheels are included in the attachment to improve maneuverability, then the attachment becomes easier to maneuver, but the size of the unit increases and it becomes unwieldy to store
Solution Approach 1:
The patent applies the dynamics principle by making the wheels retractable rather than fixed. The wheels can be extended when needed for maneuverability and retracted when storage space is required. This dynamic configuration allows the attachment to adapt its structure based on operational needs, resolving the contradiction between maneuverability and storage compactness.
Solution Approach 2:
The patent utilizes dimensional change by allowing the wheels to move between an extended position (protruding from the base) and a retracted position (stored within or alongside the base). This spatial transformation enables the attachment to occupy less space during storage while maintaining full wheel functionality during operation, effectively addressing the volume-maneuverability trade-off.
2Volume of moving object
If retractable wheels are used to reduce size, then storage is improved, but the product remains bulky
Solution Approach 1:
The patent applies the nesting principle by designing the retractable wheels to be stored within or alongside the base structure when not in use. The wheels are nested within the overall attachment configuration, allowing compact storage without adding significant external bulk. This nesting approach minimizes the increased device complexity while achieving space-efficient storage.
3Productivity
If a fluid dispensing system is added to the vacuum attachment, then cleaning effectiveness is improved, but the device complexity increases
Solution Approach 1:
The patent applies the merging principle by integrating the fluid dispensing system with the existing vacuum attachment structure. The dispensing system shares common components and mounting points with the vacuum system, combining multiple functions into a unified device. This integration approach improves cleaning effectiveness while minimizing the increase in device complexity by avoiding separate independent systems.
Solution Approach 2:
The patent applies the universality principle by designing the attachment to perform multiple functions: dry vacuuming, wet vacuuming, and fluid dispensing. The attachment head and base structure serve as common platforms for all three functions, allowing a single device to replace multiple specialized tools. This multi-functionality approach enhances productivity while controlling device complexity through shared components.
Data Source
AI summary
A wall-mountable mounting bracket and fluid-dispensing attachment for a vacuum cleaner. The attachment can be used to dispense cleaning fluid to an area to be cleaned. The fluid is sucked up along with dirt by the vacuum. A remotely-activatable valve allows user's to selectively shut off the flow of fluid. Retractable wheels can be moved between a usage position and a storage position. In the storage position, the axis of the wheels is above the lowermost side of the attachment and any overhang of the lowermost edge of the wheels is less than the thickness of a corresponding part of the mounting bracket.