Dynamic Guide Hand for Curved Hair Cutting Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hair-cutting methods are limited to producing straight cutting lines, which result in rapid hair growth and require additional steps for volume build-up and styling, unable to create curved cutting lines efficiently.
Innovation Solution
The guide hand is moved during the cutting process, allowing for curved cutting lines by angling, turning, or bending, while maintaining tension on the hair strands, enabling different lengths and volumes to be achieved in a single workstep.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the guide hand is held rigidly and in position during cutting, then straight cutting lines are produced with consistent hair length, but curved cutting lines cannot be created and additional worksteps are required for volume build-up
Solution Approach 1:
The guide hand transitions from a static, rigid position to a dynamic, movable position during the cutting process. The guide hand is moved continuously or step-wise after taking up the slice of hair, allowing the cutting line to curve while maintaining control over the hair strands. This dynamic movement enables both straight and curved cutting lines without requiring additional worksteps.
2Shape
If straight cutting lines are used, then geometric hairstyle shape is achieved, but hair grows out quickly and volume build-up requires regular recutting
Solution Approach 1:
The cutting line is changed from a straight line to a curved line by moving the guide hand in continuous or step-wise motion. The curvature of the cutting line creates varied hair lengths that blend more naturally as hair grows, delaying the visible growth phase and reducing the frequency of recutting needed for volume maintenance.
3Productivity
If the guide hand is moved during cutting, then curved cutting lines and volume build-up are achieved in one step, but the guide fingers must allow hair strands to slide through while maintaining tension
Solution Approach 1:
The guide hand is moved continuously or step-wise after the taking up or pinching of the slice of hair to be cut, with the movement prepared in advance to match the time development of the cutting. This preliminary planning of the movement path allows the cutter to achieve curved lines and volume in one coordinated motion without complex real-time adjustments.
Data Source
AI summary
A method for the cutting of hair, in particular for the cutting of human head hair, wherein a slice of hair is taken up and is guided by a hand, namely the guide hand, with the slice of hair being pinched between two fingers, namely the guide fingers of the guide hand, and wherein the slice of hair is cut along the guide fingers using a cutting device that is actuated by another hand, namely the cutting hand. The guide hand is moved continuously or step-wise after the taking up of the slice of hair and the cutting of the slice of hair takes place at least partially during the movement of the guide hand or, in the case of step-wise movement, during and/or between the movement steps.