Segmented Hot-Air Brush Body for Crimping and Volume Control
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Solution Overview
Problem
Prior hot-air brushes are ineffective in certain hair treatments such as crimping or reducing hair volume, and are not easy or inexpensive to manufacture.
Innovation Solution
A hot-air brush with a tubular metal wall having flattened portions and curved parts with a specific ratio of dimensions, made from heat-accumulating materials like aluminum alloys, which allows for efficient heat transfer and varied styling options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional round or oval brush body is used, then the brush structure is simple and easy to manufacture, but the brush is ineffective for certain hair treatments such as crimping or reducing hair volume
Solution Approach 1:
The brush body is segmented into multiple flattened portions (first, second, third, and fourth flattened portions) with different orientations and functions. Each flattened portion has bristles arranged in specific directions to address different hair treatment needs, such as crimping and volume reduction, thereby enhancing versatility while maintaining a manageable structure.
Solution Approach 2:
The brush body employs asymmetric design with flattened portions extending in different directions from the central axis. The first and second flattened portions extend in opposite directions, as do the third and fourth flattened portions, creating an asymmetric yet balanced structure that provides varied styling capabilities without excessive complexity.
2Adaptability or versatility
If a metallic body with multiple flattened portions is used, then the brush achieves improved styling effectiveness, but the manufacturing complexity and cost increase
Solution Approach 1:
Multiple functional flattened portions are merged into a single integrated metallic brush body. The first, second, third, and fourth flattened portions are all part of one continuous metallic structure, which simplifies manufacturing compared to assembling separate components while maintaining the versatility needed for different hair treatments.
Solution Approach 2:
The metallic brush body is designed to perform multiple hair treatment functions simultaneously through its different flattened portions. Each portion can be used for specific styling needs (crimping, volume reduction, smoothing), making the brush a universal tool that replaces multiple specialized brushes, thereby justifying the increased manufacturing complexity through enhanced versatility.
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 brush effectively achieves special crimped effects and prevents unwanted curls, offering improved usability and cost-effectiveness in hair styling.
Implementation Method 1
Thanks to its capacity to accumulate heat, the body, preferably made of aluminium and aluminium alloys, makes it possible to operate on the hair with a tool which is able to transfer heat
Implementation Method 2
the body... makes it possible to operate on the hair with a tool which is able to transfer heat and this heat transfer enables a more incisive and long-lasting action to be performed on the hair
Data Source
Figure 1~4
Figure 5~8
AI summary
Described is an improved hot-air brush (1) comprising a body (2) exhibiting a longitudinal development along a determined central axis (A) and a grip (3) connected to an end of the body (2) which comprises a tubular wall exhibiting on the relative surface a plurality of through-holes (6), and a plurality of bristles (4) emerging from the holes (6).