Safety Razor With Flexible Blade And Folded Handle
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Solution Overview
Problem
Conventional safety razors require shaving cream for protection during dry shaving, leading to issues like razor burn and difficulty in accessing hard-to-reach areas without assistance, and they often have rigid cutting blades that can cause accidental cutting or nicking.
Innovation Solution
A safety razor design with a cutting blade that is recessed into a deep void and supported by an inner guard, allowing for flexibility and reduced exposure, enabling dry shaving without cream and minimizing the risk of cutting or nicking, along with a handle that can be folded for compact storage and easy access to hard-to-reach areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cutting blade is made rigid and exposed for close shaving, then the shaving closeness is improved, but the risk of accidental cutting and nicking increases
Solution Approach 1:
The cutting blade is designed to be flexible rather than rigid, allowing it to dynamically adapt to skin contours. The blade can flex and bend to follow the curvature of the skin surface, maintaining close contact for precise shaving while reducing the risk of accidental cuts. This dynamic flexibility resolves the contradiction between shaving closeness and safety.
Solution Approach 2:
The cutting blade is constructed as a thin, flexible element that can conform to skin surfaces. This flexible blade design allows it to adapt to challenging surfaces and contours, providing close shaving contact while the flexibility inherently prevents rigid, accidental cutting actions.
2Productivity
If the cutting blade exposure is increased for close shave, then the shaving effectiveness is improved, but the need for shaving cream as lubricant becomes necessary
Solution Approach 1:
The flexible cutting blade design enables the blade itself to provide the lubrication function through its contact characteristics. The blade's flexibility allows it to conform to skin contours, distributing pressure evenly and reducing friction without requiring external lubricants like shaving cream. The blade serves both cutting and protective functions simultaneously.
3Volume of moving object
If the razor handle is made compact for storage, then the portability is improved, but the ability to reach hard-to-access areas may be compromised
Solution Approach 1:
The razor handle incorporates flexible segments or joints that allow it to bend and extend dynamically. When stored, the razor maintains a compact form factor. During use, particularly when reaching hard-to-access areas, the flexible handle can extend or contort to provide the necessary reach and positioning, resolving the contradiction between compactness and accessibility.
Data Source
AI summary
A safety razor for shaving hair on skin has a substrate structure and a plurality of blade groups arranged in parallel rows on a front surface of the substrate structure, each of the blade groups spaced a distance therebetween. Each blade group has a sharp blade having a leading side and a trailing side for shaving the hair, an outer comb next to and parallel to the leading side of the sharp blade, and an inner guard next to and parallel to the trailing side of the sharp blade. A suppleness distance between the outer comb and the inner guard of each of the blade groups can be narrower than the distance spaced between each of the blade groups.