Cleaner Head Floor Engaging Device for Liquid Absorption and Guidance
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Solution Overview
Problem
Existing cleaner heads for multi-floor and wet/dry vacuum cleaners lack an effective mechanism for simultaneously absorbing liquids and guiding them towards a collection point, leading to inefficient cleaning and potential splashing.
Innovation Solution
A cleaner head design featuring a floor engaging device with a first portion for absorbing liquids and a second, stiffer portion with bristles to guide liquids from the surface towards the first portion, ensuring effective liquid collection and reduced splashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single uniform floor engaging device is used, then the structure is simple, but it cannot simultaneously absorb liquids and guide them effectively
Solution Approach 1:
The floor engaging device is divided into multiple portions with different functions: a first portion for absorbing liquids and a second portion for guiding liquids. This segmentation allows each portion to be optimized for its specific function, improving overall cleaning efficiency while maintaining reasonable structural complexity.
Solution Approach 2:
Different portions of the floor engaging device are given different local qualities - the first portion has high absorbency for liquid absorption, while the second portion has a stiffer structure with bristles for liquid guidance. This local differentiation enables simultaneous liquid absorption and guidance functions.
2Reliability
If only an absorbing portion is used, then liquid absorption is achieved, but liquid guidance and splashing prevention are insufficient
Solution Approach 1:
The second portion with bristles performs preliminary action by guiding liquids toward the first absorbing portion before the liquids can splash. This pre-guidance function prevents harmful splashing while ensuring reliable liquid collection.
Solution Approach 2:
The second portion acts as an intermediary between the floor surface and the first absorbing portion, using its bristle structure to channel and direct liquids toward the absorbing area, thereby preventing splashing while maintaining effective liquid collection.
3Strength
If the entire floor engaging device is made stiff, then structural strength is improved, but liquid absorption capability is reduced
Solution Approach 1:
The floor engaging device has different local qualities along its length - the second portion is stiffer for structural strength and liquid guidance, while the first portion is more compliant and absorbent for liquid absorption. This local differentiation resolves the contradiction between strength and absorption.
Solution Approach 2:
The device is segmented into a stiff second portion for structural support and liquid guidance, and a softer first portion for liquid absorption. This segmentation allows the stiff portion to provide strength while the absorbent portion maintains liquid absorption capability.
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 design enhances cleaning efficiency by ensuring liquids are absorbed and guided effectively, improving the overall cleaning performance and user experience by minimizing splashing and improving surface contact.
Implementation Method 1
a first portion for absorbing liquid from a surface to be cleaned
Implementation Method 2
a second portion... with bristles for guiding liquid from a surface to be cleaned towards the first portion
Data Source
AI summary
A cleaner head for a cleaning appliance including a housing having a front side, a rear side, and first and second sides which extend between the front side and the rear side, the housing further including a floor facing surface which extends between the front side, rear side and first and second sides which, in use, faces a surface to be cleaned. A floor engaging device is connected to the floor facing surface of the housing and which extends laterally between the first and second sides of the housing, said floor engaging device including a first portion for absorbing liquid from a surface to be cleaned; and a second portion positioned closer to either a front side or a rear side of the housing, said second portion being relatively stiff compared to the first portion.