Adjustable Pivot Axis Safety Razor for Personalized Shaving
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Solution Overview
Problem
Conventional safety razors with fixed grip positions fail to accommodate individual shaving preferences and varying skin conditions, leading to suboptimal shaving results as the pivot axis position is not easily adjustable to suit personal needs.
Innovation Solution
An adjustable pivot axis mechanism in the safety razor apparatus allows the shaving person to change the pivot position between the grip portion and the blade assembly, enabling adjustment of the shaving behavior from aggressive to skin-friendly without compromising stability, using a pin with multiple recesses and clamping means for easy adjustment during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pivot axis position is fixed to satisfy the majority of shaving persons, then an acceptable average shaving result is achieved, but the shaving result is non-optimal for individual persons and different facial regions
Solution Approach 1:
The pivot axis position is made adjustable rather than fixed, allowing the user to dynamically change the pivot location along the grip portion to adapt to different shaving preferences and facial regions, resolving the contradiction between fixed design and individual adaptability
Solution Approach 2:
The grip portion is segmented with multiple discrete pivot positions (at least three locations), allowing the user to select the optimal pivot location for different shaving scenarios, balancing adaptability with structural simplicity
2Measurement precision
If the pivot axis is located near the first blade for precise shaving, then shaving precision is improved, but the shaving becomes slightly aggressive
Solution Approach 1:
The user can dynamically adjust the pivot axis position between different locations (near the first blade for precision or in front of it for gentler shaving), allowing real-time optimization between precision and aggressiveness based on skin condition and personal preference
Solution Approach 2:
Changing the pivot axis position parameter alters the mechanical characteristics of the blade assembly, enabling the user to select between precise but aggressive shaving (pivot near blade) and skin-friendly but less precise shaving (pivot in front of blade)
3Stability of the object's composition
If the pivot axis location is optimized for stable positioning, then blade assembly stability is improved, but the ability to adapt to different personal circumstances is reduced
Solution Approach 1:
The system provides multiple stable pivot positions rather than a single fixed position, allowing the user to select the most stable configuration for their specific needs while maintaining overall system stability through proper mechanical design of the pivoting mechanism
Data Source
AI summary
A safety razor apparatus having a blade assembly comprising two guiding members, each having a surface for abutting against the skin, and one or more blades located between the two guiding members (9,10), wherein the cutting edge of each blade and the surfaces are positioned substantially in one plane. The apparatus has a grip portion being pivotal relative to said blade assembly about a pivot axis, wherein the pivot axis is positioned parallel to the cutting edge. A location of the pivot axis is adjustable with respect to the blade assembly.