Flexible Body Shaver Blade Contouring Skin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing safety razors often require shaving cream for dry shaving, especially when accessing hard-to-reach areas, and can cause accidental cutting, nicking, or razor burn, and are not suitable for individuals with sensitive skin or those needing to shave in emergency situations without the need for batteries or moving parts.
Innovation Solution
A safety razor design featuring a cutting blade with an outer comb and inner guard, allowing for adjustable exposure and flexibility, enabling dry shaving without cream, with a handle that can be used for various body parts and easily stored, and accommodating sensitive skin or emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the cutting blade is rigidly anchored in place to maintain stability, then the shaving precision is improved, but the ability to contour to challenging surfaces deteriorates
Solution Approach 1:
The cutting blade is made flexible rather than rigid, allowing it to dynamically adapt its shape to contour challenging surfaces while maintaining cutting effectiveness. The blade can bend and flex to follow the skin's curvature, resolving the contradiction between stability and adaptability.
Solution Approach 2:
The blade's physical properties are changed by making it flexible, which allows it to change its form factor and adapt to different surface geometries. This parameter change enables the blade to maintain both stability during cutting and adaptability to challenging surfaces.
2Measurement precision
If the cutting blade exposure is increased to provide a closer shave, then the shaving precision is improved, but the risk of accidental cutting and razor burn increases
Solution Approach 1:
The flexible blade dynamically adjusts its exposure and contact with the skin during shaving. It can bend away from the skin when not in use and make controlled contact during cutting, reducing accidental cutting while maintaining precision when needed.
Solution Approach 2:
The blade is constructed as a flexible element that can conform to the skin surface, allowing it to provide close shaving precision while reducing the risk of accidental cutting through controlled flexibility and adaptability to skin contours.
3Reliability
If shaving cream is used as a lubricant to prevent cutting, then the safety is improved, but the convenience and speed of shaving deteriorates
Solution Approach 1:
The flexible blade design inherently reduces the need for lubrication by adapting to skin contours and reducing accidental contact. This allows for faster, more convenient shaving while maintaining safety through the blade's adaptive flexibility rather than relying on shaving cream.
4Ease of operation
If the handle is made long to reach hard-to-reach areas, then the accessibility is improved, but the control and precision deteriorates
Solution Approach 1:
The flexible blade compensates for the longer handle by adapting to skin contours and maintaining precise contact during shaving. The flexibility allows the blade to self-adjust and maintain control even when accessed through a longer handle, resolving the contradiction between accessibility and precision.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A safety razor removes hair from skin using the cutting blade comprising a sharp edge along an elongated side of a planar surface. An outer comb has a row of outer teeth running along the planar surface on an outside of the cutting blade, each outer tooth is substantially perpendicular to the sharp edge and spaced with a gap between the row of the outer teeth and the planar surface of the cutting blade. Ends of the row of outer teeth comprise outer teeth tips. An inner guard runs along the planar surface on an inside of the cutting blade. A handle is coupled to the cutting blade, the handle having a longitudinal axis which is substantially perpendicular to the sharp edge of the cutting blade. The sharp edge of cutting blade is recessed up to a skin surface contour, the skin surface contour defined by the outer teeth tips and an edge of the inner guard. The sharp edge of cutting blade longitudinally bends to cause further recess relative to the skin surface contour.