Detachable Slide Shoe for Upright Vacuum Soft-Carpet Glide
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Solution Overview
Problem
Upright vacuum cleaners face difficulties in cleaning soft fiber nap carpets due to deep penetration and increased force requirements, leading to reduced suction performance and potential drive overload, especially with newer carpet designs featuring finer filaments and increased filament counts.
Innovation Solution
A detachable slide shoe with a sliding surface is mounted on the cleaning head, increasing the distance between the bearing surface and the brush roller, reducing friction, and featuring air ventilation conduits to prevent excessive suction, while accommodating running wheels and adjustment mechanisms for improved compatibility with various carpet types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cleaning head is designed to maintain good suction characteristics on conventional carpets, then suction performance is improved, but the cleaning head sinks deeply into soft fiber nap carpets, increasing the force required to push the vacuum cleaner
Solution Approach 1:
The invention divides the cleaning head into two functional parts: the main cleaning head body and a detachable slide shoe. The slide shoe can be attached when cleaning soft carpets and removed when cleaning conventional carpets, allowing the system to adapt to different carpet types without redesigning the entire cleaning head
Solution Approach 2:
The slide shoe changes the geometric parameters of the cleaning head by increasing the distance between the bearing surface and the brush roller, and by providing a larger sliding surface area. This parameter change reduces the sinking depth into soft carpets and decreases the frictional resistance, thereby reducing the force required to push the vacuum cleaner
2Force
If height adjustment or secondary air holes are used to reduce negative pressure, then the cleaning head sinks less into soft carpets, but suction characteristics are extremely worsened
Solution Approach 1:
The invention isolates the pressure management function in a separate slide shoe component with dedicated air ventilation conduits, rather than modifying the main cleaning head structure. This segmentation allows independent optimization of both suction characteristics and sinking depth without compromising the other
Solution Approach 2:
The air ventilation conduits in the slide shoe act as intermediaries that regulate the negative pressure between the suction hole and the roller space housing. These conduits provide controlled pressure equalization that prevents excessive sinking into soft carpets while maintaining effective suction performance
3Productivity
If the cleaning head is designed for optimal performance on conventional carpets, then suction performance is maintained, but the device cannot be easily adapted to soft fiber nap carpets without changing the entire vacuum cleaner
Solution Approach 1:
The cleaning head is segmented into a permanent main body optimized for conventional carpets and a detachable slide shoe optimized for soft carpets. This segmentation enables easy adaptation to different carpet types by simply attaching or removing the slide shoe, without requiring changes to the entire vacuum cleaner device
Solution Approach 2:
The system transitions from a static, fixed-design cleaning head to a dynamic, adjustable configuration. The slide shoe can be attached or detached based on the carpet type, allowing the cleaning head to dynamically adapt its structure and performance characteristics to match the cleaning requirements of different surfaces
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The slide shoe enhances the cleaning head's ability to glide smoothly over soft carpets, reducing the force required for operation and maintaining effective suction performance, thereby improving the overall cleaning efficiency and safety of upright vacuum cleaners on soft floor coverings.
Implementation Method 1
the slide shoe has a continuous, smooth and generally planar but slightly downwardly convex bottom surface as a sliding base... leads to advantageous sliding characteristics with low frictional resistance
Implementation Method 2
provide air ventilation conduits on the sliding base... connected to the suction hole... prevent excessively strong suction of the cleaning head on the floor surface
Data Source
AI summary
A slide shoe is detachably mounted on the underside of a cleaning head and has a hole congruent with the suction hole of the cleaning head. The slide shoe can be retrofitted to the cleaning head of an already existing floor vacuum cleaner. On its underside, the slide shoe has a slide surface that can be moved easily over a soft carpet. At the same time, the slide shoe mounted on the underside of the cleaning head increases the distance between the bearing surface of the cleaning head and the brush roller compared to the bearing surface of the cleaning head without a slide shoe.