Floor Nozzle Spring-Loaded Suction Edge for Carpet Adaptation
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Solution Overview
Problem
Existing floor nozzles for vacuum cleaners face challenges in effectively adapting to different floor surfaces, particularly carpeted floors, due to inadequate design features that hinder optimal dust pick-up efficiency, especially with low intake capacities.
Innovation Solution
The floor nozzle incorporates a suction mouth edge with a spring element allowing vertical movement, combined with a deformable lip and rigid strip, enabling better adaptation to floor surfaces and compensating for varying forces during use, along with pivotable and limit-stopped lips for enhanced carpet fiber bending and dust pick-up.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed suction mouth edge is used, then the structure is simple, but the adaptation to different floor surfaces is poor
Solution Approach 1:
The suction mouth edge is designed with a spring element that allows it to dynamically adjust its position vertically in response to different floor surface conditions. The spring enables the edge to move between a first position for hard floors and a second position for carpeted floors, providing adaptability without requiring a completely complex reconfigurable structure.
Solution Approach 2:
The invention changes the positional parameter of the suction mouth edge relative to the suction mouth opening. By adjusting the vertical position of the edge through the spring mechanism, the system adapts to different floor types (hard floors vs. carpets) by modifying this geometric parameter rather than changing the entire nozzle structure.
2Ease of operation
If a rigid suction mouth edge is used, then the manufacturing is simple, but the compensation for varying forces is insufficient
Solution Approach 1:
The spring element transforms the rigid suction mouth edge into a dynamic component that can automatically respond to varying forces during pushing and pulling operations. The spring absorbs and compensates for force variations, reducing the effort required by the user while maintaining structural simplicity.
Solution Approach 2:
The spring element acts as a cushioning mechanism that is pre-installed in the suction mouth edge assembly. It beforehand compensates for the varying forces that occur during operation, absorbing shocks and reducing the impact on the user without requiring active control or complex mechanisms.
3Adaptability or versatility
If the lip is made deformable (elastic/soft material), then the adaptation to carpet fibers is good, but the structural strength is reduced
Solution Approach 1:
The suction mouth edge employs a differentiated material strategy: the lip portion is made of elastic/soft material to provide local adaptability to carpet fibers, while the main body or attachment portion can be made of stronger, more rigid material to maintain overall structural strength. This local quality differentiation allows both requirements to be satisfied simultaneously.
Solution Approach 2:
The suction mouth edge can be constructed as a composite structure combining different materials - an elastic lip portion for fiber engagement and a stronger supporting structure for mechanical integrity. This composite approach allows the deformable lip to adapt to carpets while the overall component maintains sufficient strength.
4Strength
If the lip is made rigid (hard material), then the structural strength is good, but the deformation capability for fiber bending is reduced
Solution Approach 1:
The rigid material provides structural strength for the main body of the suction mouth edge, while the lip portion is specifically designed with deformable material properties to enable local deformation for fiber bending. This local quality differentiation ensures both strength and adaptability are achieved in appropriate locations.
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
This design significantly improves dust pick-up effectiveness on various floor types, reducing user effort and achieving high dust pick-up values even with low intake capacities, by ensuring optimal positioning and bending of carpet fibers during forward and backward movements.
Implementation Method 1
the suction mouth edge has at least one spring element between the fastening part and the lip or strip, the spring element enabling a vertical spring movement of the lip or strip perpendicular to the working direction
Implementation Method 2
a lip is deformable in the classic sense, ie made of an elastic or soft material such as rubber or an elastomer
Data Source
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AI summary
The invention relates to a floor nozzle (1) for a vacuum cleaner (2) for cleaning and caring for floor surfaces, with a housing (3) which has an underside (4) facing the floor surface in the working position, on which an elongate, transverse to the working direction ( 5) extending suction mouth (6), the suction mouth (6) being delimited by an associated suction mouth edge (7), the suction mouth edge (7) having a fastening part (8) and a lip (9), the fastening part (8 ) is attached to the underside (4) and the lip (9) is designed to be movable relative to the attachment part (8), the suction mouth edge (7) between the attachment part (8) and the lip or strip (9) having at least one spring element (10 ), wherein the spring element (10) enables a vertical spring movement (11) of the lip or strip (9) perpendicular to the working direction (5), and a vacuum cleaner (2) with such a floor nozzle (1).