Gray Hair Removal Cutter for Root-Level Cutting Near the Scalp
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Solution Overview
Problem
Current gray hair removal methods, such as traditional cutters, face difficulties due to obstruction by dandruff and hair, and are costly and inefficient, making it challenging to effectively remove sparse gray hair without damaging colored hair.
Innovation Solution
A gray hair removal system comprising a cutter with a handle and blade designed for close proximity to the scalp, featuring a sensing unit, identification unit, and driving unit to accurately target and remove gray hair, along with a comb and component configurations that allow for precise cutting without housing, preserving colored hair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional cutter with protective housing is used to cut gray hair, then the cutter structure is complete and protected, but the relative movement between cutter and housing is easily obstructed by dandruff and hair, making it difficult to achieve the desired cutting motion
Solution Approach 1:
The patent removes the protective housing from the cutter design, extracting only the essential cutting function. The cutter consists of a simple handle and blade assembly without enclosing housing, eliminating the obstruction problem while maintaining cutting effectiveness for sparse gray hair.
Solution Approach 2:
The cutter is segmented into minimal functional components: a handle for positioning and a blade for cutting. This segmentation eliminates unnecessary housing structures that would interfere with the cutting motion, allowing direct contact between the blade and gray hair at the scalp surface.
2Ease of manufacture
If a traditional cutter with housing is used, then the structure is stable, but the manufacturing and maintenance cost is high
Solution Approach 1:
By extracting the housing component entirely, the manufacturing process is simplified to only producing the handle and blade. This reduces material costs, manufacturing steps, and assembly requirements, making the device economically viable while maintaining cutting effectiveness through proper blade design and positioning.
3Ease of operation
If the cutter is designed without housing for better accessibility, then the cutting motion is less obstructed, but the blade position must be very close to the scalp which increases the risk of injury
Solution Approach 1:
The blade is designed with localized sharp edges only at the cutting surface that contacts the gray hair, while the rest of the blade structure and handle provide safety and control. The blade width and edge geometry are optimized to cut gray hair at the scalp surface without excessive sharpness that would increase injury risk during normal operation.
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 system enables complete removal of gray hair at the root, enhancing personal image and extending the appearance of full-colored hair for at least ten years by ensuring precise cutting and minimizing damage to colored hair.
Implementation Method 1
the sensing unit responds to the contact of the end of the handle and the scalp, and outputs a start signal
Implementation Method 2
the driving unit is at least one of an electrostatic actuator, an electromagnetic actuator, a piezoelectric actuator, or a reverse piezoelectric actuator
Implementation Method 3
the driving unit is at least one of an electrostatic actuator, an electromagnetic actuator, a piezoelectric actuator, or a reverse piezoelectric actuator
Implementation Method 4
the driving unit is at least one of an electrostatic actuator, an electromagnetic actuator, a piezoelectric actuator, or a reverse piezoelectric actuator
Implementation Method 5
the driving unit is at least one of an electrostatic actuator, an electromagnetic actuator, a piezoelectric actuator, or a reverse piezoelectric actuator
Data Source
AI summary
A gray hair removal cutter, a gray hair removal component, a gray hair removal comb, and a gray hair removal system are disclosed. The gray hair removal cutter includes a handle and a blade located on the handle. The extension direction of the handle is defined as the first direction, the direction perpendicular to the first direction as the second direction, and the direction perpendicular to both the first and second directions as the third direction. The single edge or two opposite edges of the blade include a cutting edge that is used for removing gray hair along the third direction, and the cutting edge extends along the second direction. The gray hair removal cutter does not require housing, and the position of the blade is closer to the scalp, allowing for the complete cutting of gray hair at the root.