Segmented Flexible Hair Brush for Dry Shampoo Distribution
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Solution Overview
Problem
Conventional hair brushes with continuous heads are ineffective in distributing dry shampoo due to restricted flow and inability to follow the contours of the head, leading to trapped moisture and oils, which inhibit the cleaning effects.
Innovation Solution
A hair brush with a flexible, discontinuous brush head comprising multiple longitudinal primary arms and spaced spines with bristles, allowing for gaps that facilitate airflow and shampoo distribution, and a mountable container for dry shampoo with a fluid outlet for efficient application and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a continuous brush head is used, then the brush structure is simple and rigid, but it restricts flow of dry shampoo and traps moisture and oils
Solution Approach 1:
The brush head is divided into multiple discrete longitudinal primary arms (at least two, preferably three) spaced apart to create gaps. Each primary arm contains spines with bristles. This segmentation allows dry shampoo to flow through the gaps between arms and spines while maintaining structural integrity, resolving the contradiction between structural simplicity and shampoo distribution efficiency.
2Stability of the object's composition
If a continuous brush head is used, then the brush maintains structural stability, but it cannot follow the contours of the user's head
Solution Approach 1:
The primary arms are designed to be substantially flexible rather than rigid, allowing them to move and flex relative to each other and to the longitudinal axis. This dynamic flexibility enables the brush head to conform to the contours of the user's head while maintaining overall structural stability through the interconnected arm structure.
3Productivity
If spaced primary arms with gaps are used, then shampoo flow and moisture removal improve, but the brush head becomes more complex
Solution Approach 1:
The brush head is segmented into discrete primary arms with gaps between them, allowing moisture, oil, and air to circulate freely. Each arm is further segmented into spines with bristles. This hierarchical segmentation achieves superior shampoo distribution and moisture removal while keeping each individual component relatively simple.
Solution Approach 2:
Different regions of the brush head have different properties: the gaps between primary arms provide open circulation paths for moisture and oil removal, while the spines and bristles on each arm provide localized hair engagement and shampoo application. This local differentiation optimizes both moisture removal and shampoo distribution functions.
Data Source
AI summary
A hair brush includes a handle defining a longitudinal axis and a brush head having at least two longitudinal primary arms extending longitudinally from the handle and disposed in lateral spaced relation to define a longitudinal gap therebetween. Each of the longitudinal primary arms includes a pair of longitudinal rear spines disposed in lateral spaced relation, a single longitudinal intermediate spine extending from the rear spines, and a pair of longitudinal forward spines disposed in lateral spaced relation and extending from the intermediate spine. Hair engaging bristles are disposed on each of the rear spines, the intermediate spines and the forward spines. The at least two longitudinal primary arms are substantially flexible to conform to the contour of the user's head. A container containing a hair treatment agent such as dry shampoo may be releasably mounted to the handle.