Razor Base Rear Extension for Tactile Feedback
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Solution Overview
Problem
Conventional razors provide insufficient feedback to users, making it difficult to achieve optimal shaving results, especially when shaving hard-to-reach or unseen body parts, and can increase the risk of injury.
Innovation Solution
A razor base design featuring a head portion with a rear surface and extensions that allow direct contact with the user's finger pads, providing sensitive feedback and allowing for precise control and improved handling, eliminating the need for a pivoting mechanism and enabling shaving of small, hard-to-reach areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a conventional razor handle is used, then the razor can be held and operated, but the user receives insufficient feedback during shaving
Solution Approach 1:
The patent applies the feedback principle by designing the razor base with a rear surface that directly contacts the user's finger pads, creating a tactile feedback loop. The finger pads sense the interaction forces between the blade and skin, providing real-time sensory information about shaving progress and pressure application, thereby resolving the information loss problem.
Solution Approach 2:
The patent extracts the feedback function from the conventional handle structure by creating a dedicated rear surface on the razor base that interfaces directly with the finger pads. This separation allows the feedback mechanism to be optimized independently from the gripping function, enhancing tactile sensitivity without compromising handling.
2Reliability
If the user contacts the razor handle with their fingers, then they can control the razor, but they cannot directly sense the shaving operation
Solution Approach 1:
The direct contact between finger pads and the rear surface of the razor base creates a reliable feedback mechanism that enhances user safety. The sensitive nerve receptors in the finger pads detect subtle changes in force and texture during shaving, allowing users to immediately sense potential issues such as excessive pressure or missed areas, thereby preventing injury.
Solution Approach 2:
The user's own finger pads serve as the sensing mechanism, utilizing the body's existing sensitive receptors to detect shaving conditions. This self-service approach eliminates the need for additional sensors or complex feedback systems, relying instead on the user's natural tactile capabilities to ensure safety and control.
3Adaptability or versatility
If a pivoting mechanism is added to improve handling, then the razor may be more adaptable, but the device complexity increases
Solution Approach 1:
The patent removes the pivoting mechanism entirely, extracting the adaptability function from mechanical joints and replacing it with direct finger pad contact. The flexibility and adaptability previously provided by pivoting are achieved through the compliance and sensitivity of the finger pads, which naturally adjust to various shaving angles and contours without requiring mechanical complexity.
Solution Approach 2:
The patent replaces the mechanical pivoting system with a biological sensing system based on finger pad contact. Instead of using mechanical joints to provide adaptability, the design relies on the user's fingers to naturally conform to different shaving surfaces, substituting mechanical complexity with human tactile intelligence.
Data Source
AI summary
The present invention relates to a razor base (2) comprising a head portion (4), wherein the head portion (4) comprises a forward surface (42) and a rear surface (44) opposite to the forward surface (42); and at least one rear extension (6, 60) extending away from the rear surface (44); wherein the rear surface (44) and the at least one rear extension (6, 60) together define finger end receiving sections (8) each configured to receive a finger end section (102) of a user. The present invention also relates to a corresponding razor and to a corresponding use.