Adjustable Spring Stiffness Mechanical Hair Puller
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Solution Overview
Problem
Existing hair removal methods, such as tweezers, rotary nose hair clippers, waxing, and razors, are costly, time-consuming, and painful.
Innovation Solution
A mechanical hair puller with a plunger, housing, and adjustable coil spring, allowing for quick and painless removal of unwanted nose and ear hairs by extending the spring to grab and pull out hairs with minimal effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional hair removal methods (tweezers, waxing, razors) are used, then hair removal is achieved, but the process is painful, time-consuming, and costly
Solution Approach 1:
The spring mechanism provides dynamic, adjustable tension that adapts to different hair types and removal locations. The user can screw the spring in or out to adjust the pulling force, making the device versatile for nose hairs, ear hairs, and other body areas while maintaining consistent, painless removal
Solution Approach 2:
The patent changes the physical parameter of spring tension through adjustable winding. By screwing the spring in or out, the user modifies the spring constant and tension force, optimizing the pulling strength for different hair densities and locations without causing pain or requiring multiple passes
2Productivity
If higher spring tension is used to remove dense hairs, then hair removal effectiveness improves, but pain and discomfort increase
Solution Approach 1:
The adjustable spring mechanism allows real-time modification of tension force. Users can start with lower tension for sensitive areas and increase it for denser hair regions, or vice versa, optimizing the balance between removal efficiency and comfort for each specific situation
Solution Approach 2:
The spring tension parameter is made variable through mechanical adjustment. By changing the spring winding, the user directly controls the force applied during hair removal, enabling high productivity when needed while minimizing pain by reducing tension when appropriate
3Adaptability or versatility
If fixed spring stiffness is used, then device structure is simple, but the device cannot adapt to different hair types and locations
Solution Approach 1:
The simple yet effective adjustment mechanism allows users to modify spring tension based on hair density and location. The mechanical screw-in/screw-out design adds minimal complexity while providing significant adaptability for nose hairs, ear hairs, eyebrows, and other body areas with different hair characteristics
Solution Approach 2:
The spring stiffness parameter is made adjustable through a straightforward mechanical interface. Users can screw the spring in to increase tension for dense hair or out to decrease tension for fine hair, providing versatile adaptability without complicating the overall device structure
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
Enables efficient and pain-free hair removal within minutes, reducing the time and discomfort associated with traditional methods.
Implementation Method 1
a spring. The spring stiffness can be adjusted by screwing different numbers of turns (windings) of the spring into the housing
Data Source
AI summary
A mechanical hair puller has a plunger, a housing and a spring. The housing has a spring receiving portion, a finger rest and a stopper. The plunger has a plunger rest and a plunger stop. The spring has a spring tab at a top end of the spring. A bottom portion of the spring is screwed into the spring receiving portion of the housing. A portion of the plunger slides within the housing over a limited range of movement between a first and second end positions. The plunger pushes the spring tab to extend the spring so as to create multiple openings between turns (windings) of the spring. Unwanted hairs enter the multiple openings. The unwanted hairs are captured by the multiple openings. Then, the plunger is released. The spring retracts and grabs the unwanted hairs. Then, move the spring with sufficient friction to pull out the unwanted hairs.