Vacuum Cleaner Nozzle With Three Settings for Multi-Surface Pickup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vacuum cleaner nozzles face challenges in adapting to multiple surfaces, with issues such as dirt being swept instead of picked up on hard floors and complexity in user adjustments, leading to impaired suction power and user friendliness.
Innovation Solution
A nozzle with a mechanism allowing three settings: fully retracted for soft surfaces, partly retracted with a gap for all-around use, and fully projected for hard floors, using a single actuator to adjust the brush and support means, ensuring concentrated suction and reduced risk of scratching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the brush is projected for hard floor cleaning, then the nozzle is adapted to hard floors, but dirt tends to be swept in front of the brush instead of being picked up by the suction port
Solution Approach 1:
The brush is made dynamically adjustable between retracted and projected positions through a spring-loaded mechanism with a release lever. This allows the brush to be projected for hard floor cleaning (improving adaptability) while being retracted for carpet cleaning (preventing entanglement). The dynamic adjustment resolves the contradiction by allowing optimal configuration for each surface type.
Solution Approach 2:
The gap between the brush and floor surface is changed as a variable parameter. When cleaning hard floors, the brush is projected to create a larger gap that prevents sweeping dirt in front of the brush. When cleaning carpets, the brush is retracted to reduce the gap and improve suction concentration. This parameter change allows optimization of dust pickup performance for different surface types.
2Productivity
If the brush is fully retracted for carpet cleaning, then the suction force is more concentrated, but using the same setting on hard floors may scratch the floor
Solution Approach 1:
The brush position is made dynamic and adjustable. For carpet cleaning, the brush is retracted to concentrate suction force and improve productivity. For hard floor cleaning, the brush is projected to prevent direct contact between the nozzle head and floor, eliminating the scratching hazard. This dynamic adjustment resolves the contradiction between concentrated suction and floor protection.
3Adaptability or versatility
If multiple adjustment mechanisms are provided for brush and support means, then the nozzle is adaptable to multiple surfaces, but the device becomes cumbersome and difficult to use
Solution Approach 1:
The adjustment mechanisms for the brush and support means are merged into a single integrated system. Both components are controlled by a single release lever that simultaneously adjusts the brush position and support means position. This merging reduces the number of separate controls, making the device easier to operate while maintaining adaptability to multiple surfaces through the coordinated adjustment of both components.
Solution Approach 2:
The single release lever mechanism serves multiple functions: it controls both the brush retraction/projection and the support means adjustment. This multi-functionality allows the user to adapt the nozzle to different surfaces (carpet, hard floor, mixed) using a single control element, improving ease of operation while maintaining versatility.
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
Anozzle (1)for a vacuum cleaneris provided comprising a nozzle head (2), at least one brush(17)retractable into the nozzle head, and at least one support means (21, 22) arranged to support the nozzle head on a surface to be cleaned(26, 27)and being retractable into the nozzle head. The nozzle further comprises a mechanism(30)arranged to set the brush and the support means in: a first setting, in which the brush and the support means are fully retracted in the nozzle head, a second setting, inwhich at least a portion(15, 16)of the brush is partly retracted in the nozzle head and the support means is projected further out from the nozzle head than said portion of the brush so as to form a gap between said portion of the brush and the surface to be cleaned, anda third setting, in which the brush is fully projected.