Multi-Zone Hygiene Brush Bristle Segmentation
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Solution Overview
Problem
Household and hygiene brushes with uniform bristle types anchored by metal fail to provide optimal cleaning efficiency, especially on uneven surfaces and in bodycare contexts, where natural bristles offer better cleaning but with limitations.
Innovation Solution
A household brush or hygiene brush device featuring distinct first and second bristle end zones with varying designs, materials, and geometries, including tapering regions and cross-sectional shapes, to enhance cleaning efficiency on diverse surfaces and body parts, with adaptable pressure grades and flexible bristle structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform bristle types are used in household brushes, then manufacturing is simplified and cost is reduced, but cleaning efficiency on uneven surfaces and deep structures is insufficient
Solution Approach 1:
The brush is divided into multiple bristle zones (first bristle end zone, second bristle end zone, third bristle end zone) with different characteristics. Each zone is segmented to perform specific cleaning functions - shorter bristles for general cleaning, longer bristles for deep structures, and varying diameters for different surface requirements. This segmentation resolves the contradiction by enabling specialized cleaning while maintaining manufacturability through modular construction.
Solution Approach 2:
Different regions of the brush have different bristle properties - the first bristle end zone has shorter bristles for general cleaning, the second has longer bristles for deep structures, and the third has varying diameters for specific surface cleaning. This local differentiation allows each part to be optimized for its specific function while the overall brush remains manufacturable as a single integrated component.
2Reliability
If metal anchors are used to secure bristles, then bristle retention is improved, but cleaning gentleness and adaptability to different surfaces is reduced
Solution Approach 1:
The bristle diameters are varied across different zones (first, second, and third bristle end zones with different diameter ranges) to change the mechanical parameters of the brush. This allows the same brush structure to adapt to different surface types and cleaning requirements while maintaining secure bristle attachment through the metal anchor system. The parameter variation enables gentler cleaning on delicate surfaces and more aggressive cleaning on tougher surfaces.
3Duration of action of stationary object
If synthetic bristles are used, then durability and cost-effectiveness are improved, but cleaning effectiveness on body parts and uneven surfaces is reduced compared to natural bristles
Solution Approach 1:
The brush combines synthetic bristle materials with varied geometric characteristics (different lengths, diameters, and configurations in multiple zones) to create a composite structure that mimics the cleaning effectiveness of natural bristles. The multi-zone design with varying synthetic bristle properties achieves both durability of synthetic materials and cleaning effectiveness comparable to natural bristles, resolving the contradiction between material durability and cleaning performance.
Data Source
AI summary
A household brush or hygiene brush device has at least one brush application region comprising at least one first bristle end zone and at least one second bristle end zone, wherein the second bristle end zone is implemented differing from the first bristle end zone.