Vacuum cleaner brush roll and vacuum cleaner
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Solution Overview
Problem
Vacuum cleaners face challenges in achieving high cleaning efficiency, reducing noise levels, and providing user-friendly operation while being cost-efficiently manufactured and assembled.
Innovation Solution
A vacuum cleaner brush roll with alternating helix directions and types of bristles on its axial sections, allowing for efficient debris collection and versatile surface cleaning without the need for lever adjustments, and a design that minimizes noise and ensures smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single type of bristles is used on the brush roll, then the device complexity is reduced, but the adaptability to different surface types deteriorates
Solution Approach 1:
The brush roll is segmented into multiple sections along its axial length, with each section containing bristles of a specific type optimized for particular surface characteristics. This segmentation allows the brush roll to handle diverse surface types (carpets, hard floors, rugs) without requiring the user to switch between different brush rolls or adjust levers, thus improving adaptability while maintaining a relatively simple overall structure.
Solution Approach 2:
Different sections of the brush roll are equipped with bristles having locally optimized properties - for example, softer bristles in sections designed for hard floors and harder, longer bristles in sections for carpets. This local quality differentiation enables each section to perform optimally on its intended surface type, enhancing overall adaptability without requiring the entire brush roll to be complex or adjustable.
2Adaptability or versatility
If the brush roll design requires lever switching for different surfaces, then the adaptability improves, but the ease of operation deteriorates
Solution Approach 1:
The brush roll is pre-segmented into multiple functional sections, each optimized for specific surface types. This segmentation eliminates the need for users to manually switch levers or adjust settings when transitioning between different surfaces, as the appropriate bristle type is already positioned in the correct section. Users simply continue operating the vacuum without interruption, significantly improving ease of operation while maintaining adaptability.
Solution Approach 2:
The brush roll design allows it to automatically adapt to different surface types without user intervention. As the brush roll rotates, different sections come into contact with the surface being cleaned, and the appropriate bristle type engages automatically. This self-service capability eliminates the need for manual lever switching, making the device easier to operate while preserving surface-type adaptability.
3Productivity
If debris is not directed to predefined portions, then the brush roll structure is simpler, but the cleaning efficiency deteriorates
Solution Approach 1:
The brush roll employs asymmetric bristle arrangement and orientation patterns that naturally direct debris toward specific predetermined portions of the brush roll during rotation. This asymmetric design creates controlled debris flow paths, concentrating collected particles in specific zones that can be more effectively removed by the vacuum's suction system, thereby improving cleaning efficiency without requiring complex additional components.
Data Source
AI summary
A vacuum cleaner brush roll having a brush body arranged to rotate around an axis (ax), a first row of bristles arranged on a first axial half section of the brush body along a first helix around the axis (ax), and a second row of bristles arranged on a second axial half section of the brush body along a second helix around the axis (ax). The twist of the second helix is opposite to the twist of the first helix. The first row of bristles comprises a first type of bristles and the second row of bristles comprises a second type of bristles having different characteristics than the first type of bristles. The present disclosure further relates to vacuum cleaner comprising a brush roll.