Vacuum Nozzle Access Hatch with Integrated Brush Cutting Device
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Solution Overview
Problem
Existing vacuum cleaner nozzles require external devices, such as scissors, to remove tangled hair from the rotating brush, leading to inefficient and potentially hazardous cleaning processes due to the need for additional tools and ergonomic issues.
Innovation Solution
An integrated access hatch with a cutting device, featuring a blade or hook-shaped cutting end, is incorporated into the nozzle to facilitate quick and safe cleaning of the motorized brush, eliminating the need for external tools and protecting the cutting mechanism from direct contact with the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If external devices like scissors are used to remove tangled hair from the brush, then the cleaning operation can be performed, but the cleaning process takes relatively long time and presents ergonomic risks
Solution Approach 1:
The cutting device is integrated into the access hatch assembly, combining the cleaning function with the existing access mechanism. This eliminates the need for separate external tools like scissors, allowing users to clean the brush directly through the hatch without handling dangerous external cutting instruments, thereby improving both cleaning speed and operational safety
Solution Approach 2:
The system provides self-service cleaning capability by incorporating the cutting device within the access hatch. The hatch itself becomes the cleaning tool, allowing users to perform maintenance without needing external assistance or additional tools, thus improving productivity and reducing ergonomic risks
2Productivity
If a cutting device is integrated into the access hatch, then cleaning speed improves and safety increases, but the device complexity increases
Solution Approach 1:
The cutting device is merged with the access hatch as an integrated assembly. The cutting element is positioned within the hatch structure itself, combining two functions (access and cleaning) into one component, which improves cleaning speed without requiring entirely separate systems
Solution Approach 2:
The access hatch serves multiple functions: it provides access to the brush for inspection and maintenance, and simultaneously houses the cutting device for hair removal. This multi-functionality improves productivity while avoiding the need for additional separate components
3Productivity
If the cutting device is exposed, then it can effectively cut hair, but it risks direct contact with the ground and degradation
Solution Approach 1:
The cutting device is nested within the access hatch assembly, which acts as a protective housing. The hatch covers and protects the cutting element when not in use, preventing direct contact with the ground and reducing degradation, while still allowing effective cutting when the hatch is opened for maintenance
Solution Approach 2:
The access hatch serves as an intermediary between the cutting device and the external environment (ground). It provides controlled access to the cutting element while protecting it from direct contact with abrasive surfaces, thus maintaining both cutting effectiveness and device durability
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a hatch (1) for access to a motorized brush (2) of a vacuum cleaner nozzle (3), said hatch (1) being capable of covering at least in part the motorized brush (2) characterized in that the access hatch (1) comprises a cutting device (4) for cleaning said motorized brush (2).