Vacuum Cleaner Nozzle Brush Assembly for Surface Sealing
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Solution Overview
Problem
Conventional vacuum cleaner nozzles are costly and complex to manufacture, and lack an efficient mechanism for sealing the air inlet on hard floors, requiring multiple brush components that are often integrated as a single unit.
Innovation Solution
A vacuum cleaner nozzle design featuring separate front and rear brush holders interconnected via a brush movement mechanism, allowing independent or simultaneous movement of the brushes to optimize sealing and manufacturing efficiency, with the rear brush holder mounted from the lower side for easier assembly and attachment to the mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple brush components are integrated as a single unit, then the sealing performance is improved, but the manufacturing cost and complexity increase
Solution Approach 1:
The brush assembly is divided into separate front brush holder and rear brush holder components that can be manufactured independently and then assembled. This segmentation allows each component to be produced with standard manufacturing processes while maintaining the sealing function through proper alignment and connection between the separate parts.
2Stability of the object's composition
If brushes are integrated as a single unit, then the structural stability is improved, but the ease of manufacture decreases
Solution Approach 1:
The integrated brush unit is segmented into separate front and rear brush holders that can be manufactured using standard processes. The structural stability is maintained through the connection mechanism between the separate holders and their coordinated movement, allowing each part to be produced independently with better manufacturing ease.
3Device complexity
If a single brush holder is used, then the device complexity is reduced, but the adaptability to different surfaces decreases
Solution Approach 1:
The brush system is segmented into separate front and rear brush holders that can be independently positioned and adjusted. This allows the nozzle to adapt to different surface types (hard floors and carpets) by controlling the position of each brush holder separately, while keeping the overall device complexity manageable through modular design.
Solution Approach 2:
The separate brush holders are equipped with independent movement mechanisms that allow dynamic adjustment of brush positions. This enables the nozzle to adapt to different cleaning surfaces by raising or lowering specific brushes as needed, providing versatility without requiring a completely different nozzle design for each surface type.
Data Source
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AI summary
The present invention relates to a vacuum cleaner nozzle (10) comprising a suction plate (1) having an inlet side (11) and an outlet side (12), said vacuum cleaner nozzle comprising an air duct (30) having a duct wall, wherein said air duct extends through the suction plate (1) from a suction opening (13) on the inlet side (11) to the outlet side (12). The nozzle (10 further comprises a front brush (15) adapted to engage with a surface to be cleaned and for at least partly sealing said suction opening (13) against said surface being cleaned, said front brush (15) extending at least partly along said inlet side and said front brush being arranged in a front brush holder (16). Furthermore, the nozzle (10) comprises a rear brush (17) adapted to engage with a surface to be cleaned and for at least partly sealing said suction opening (13) against said surface being cleaned, said rear brush (17) extending at least partly along said outlet side (12). The rear brush (17) is arranged in a rear brush holder (18), and said front brush holder (16) and said rear brush holder (18) are separate pieces.