Hair Cutting Device Comb Recognition Arrangement
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Solution Overview
Problem
Current hair cutting devices lack reliability in indicating and adjusting hair length, with mechanical systems prone to complexity and potential inaccuracies.
Innovation Solution
A hair cutting device with an interchangeable comb unit and a comb recognition arrangement that provides an electronic signal to a hair length indicator, reducing mechanical parts and using sensors or magnets for identification, allowing for intuitive and accurate hair length adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical lever system is used to indicate hair length, then the hair length can be indicated to the user, but the device complexity increases and reliability decreases
Solution Approach 1:
The patent replaces the mechanical lever system with an electronic sensing system. A comb recognition arrangement with sensors detects the comb identification member (magnet or mechanical structure) and sends electronic signals to a control unit, which then displays the hair length information. This substitution eliminates complex mechanical linkages while maintaining the indication function, thereby improving reliability and reducing device complexity.
Solution Approach 2:
The patent introduces an electronic intermediary system between the comb unit and the indication mechanism. The comb recognition arrangement acts as an intermediary that detects comb characteristics and translates them into electronic signals for display. This intermediary approach replaces direct mechanical coupling with electronic communication, simplifying the overall system while improving reliability.
2Adaptability or versatility
If multiple movable delimiters are used to indicate different comb units, then the hair length information is adapted to the comb unit, but the mechanical coupling complexity increases
Solution Approach 1:
The patent implements a dynamic display system where the hair length indicator automatically adjusts based on the detected comb unit. The control unit receives electronic signals from the comb recognition arrangement and dynamically updates the display to show the appropriate hair length range. This dynamic adaptation eliminates the need for multiple mechanically coupled delimiters, as the electronic display can seamlessly switch between different comb unit indications.
Solution Approach 2:
The patent creates a universal indication system that can handle multiple comb units through a single electronic display mechanism. The hair length indicator is designed to display information for any comb unit by receiving electronic signals about the detected comb type. This universal approach replaces multiple specialized mechanical delimiters with one multi-functional electronic display, reducing complexity while maintaining adaptability.
3Ease of operation
If a transparent window with movable delimiters is used, then visual indication is provided, but the system requires precise mechanical alignment which reduces reliability
Solution Approach 1:
The patent replaces the mechanical movable delimiter system with an electronic display system. Instead of physically moving delimiters through a transparent window, the system uses electronic signals to update a display showing the current hair length range. This substitution eliminates mechanical alignment requirements while maintaining clear visual indication, thereby improving reliability without sacrificing ease of 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 solution results in a more reliable, simpler, and user-friendly hair cutting device with improved water-tight sealing and the ability to easily recognize multiple comb units, enhancing operational ease and accuracy.
Implementation Method 1
the comb identification member comprises at least one magnet, and the comb recognition arrangement comprises at least one sensor for sensing a polarity of a magnetic field generated by the magnet
Data Source
AI summary
A hair cutting device includes a hair cutting device body and an interchangeable comb unit for defining a hair length after cutting. The hair cutting device body further includes a comb interface for releasable attachment of the comb unit to the hair cutting device body, and a hair length indicator operatively coupled to the comb interface for indicating the hair length to a user. The interchangeable comb unit includes a comb identification member for identifying a hair length associated with the comb unit, and the comb interface includes a comb recognition arrangement being electrically coupled to the hair length indicator. The comb recognition arrangement is configured to sense the comb identification member when the comb unit is connected to the hair cutting device body, and to provide an electronic signal indicative of the hair length associated with the comb unit to the hair length indicator.