Vacuum Nozzle Dock Cleaning for Entangled Brush Roll Debris
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Solution Overview
Problem
Existing vacuum cleaner nozzle designs with rotatable brush rolls face issues with fibrous materials like threads and hair adhering and intertwining around the brush, requiring significant manual force for removal, which complicates the nozzle construction and can accelerate battery discharge in battery-driven cleaners.
Innovation Solution
A cleaning arrangement with a socket for the nozzle that includes a longitudinally extending cleaning member, which cooperates with the rotating brush roll to remove entangled debris, either manually or automatically, without adding complexity to the nozzle and reducing power requirements, and can be integrated into a charging stand or used as a portable device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cleaning member is added to remove entangled debris from the brush roll, then the cleaning effectiveness is improved, but the device complexity increases
Solution Approach 1:
The cleaning member is extracted from the nozzle and placed in a separate charging stand. This separates the cleaning function from the nozzle assembly, allowing the nozzle to remain simple while the stand provides the cleaning capability. The cleaning member is positioned in the stand to contact the brush roll when the nozzle is placed in the stand for charging.
Solution Approach 2:
The cleaning function is merged with the charging stand by integrating the cleaning member into the stand structure. The stand simultaneously serves as both a charging device and a cleaning device, eliminating the need for separate cleaning mechanisms in the nozzle itself.
2Reliability
If a cleaning member with significant force is applied to remove tightly wrapped debris, then the debris removal capability is improved, but the battery power consumption increases
Solution Approach 1:
The cleaning member is pre-positioned in the charging stand at the optimal location to contact the brush roll. When the nozzle is placed in the stand, the cleaning action occurs automatically during the charging process, utilizing the brush roll's natural rotation without requiring additional power from the battery.
Solution Approach 2:
The system uses the brush roll's own rotation, generated by the vacuum cleaner's motor during normal operation or charging, to perform the cleaning action. The cleaning member passively engages with the rotating brush roll, allowing the brush roll to clean itself without requiring separate high-force mechanisms that would consume additional battery power.
3Reliability
If a cleaning member is integrated into the nozzle to clean the brush roll, then the cleaning function is improved, but the available space in the nozzle decreases
Solution Approach 1:
The cleaning member is extracted from the limited nozzle space and relocated to the charging stand, which has abundant space available. This allows the cleaning mechanism to be fully implemented without compromising the nozzle's internal volume for other components.
Solution Approach 2:
The cleaning function is moved from the one-dimensional constraint of the nozzle interior to the three-dimensional space of the charging stand. The stand provides external space that is not constrained by the nozzle's volume requirements, allowing the cleaning member to be positioned optimally without reducing nozzle internal space.
Data Source
AI summary
The present invention relates to a cleaning arrangement for a nozzle of a vacuum cleaner. The cleaning arrangement comprises a socket for receiving the vacuum cleaner nozzle and a cleaning member arranged in the socket for removing articles entangled to a rotatable member of the vacuum cleaner nozzle during rotation of the rotatable member.