Shaving Guard with Barbed Grate for Skin Protection
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Solution Overview
Problem
Conventional wet-shave razors with multiple blades cause ingrown hairs, razor burn, and irritation due to direct skin contact and are difficult to use, especially for those with coarse or curly hair, and existing solutions do not effectively address these issues for all users.
Innovation Solution
A removable guard for wet-shave razors comprising a frame and grate portion that creates space between the skin and blades, allowing for trimming while preventing direct contact, with adjustable depth and barbs for neat hair alignment, and a secure mounting mechanism compatible with various razor types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple blades are used to achieve a close shave, then shaving effectiveness is improved, but skin irritation and ingrown hairs increase
Solution Approach 1:
The patent introduces a guard as an intermediary component between the razor blades and the skin. The guard acts as a mediator that allows the blades to cut hair while preventing direct contact between the blade edges and skin, thereby reducing irritation and ingrown hairs while maintaining shaving effectiveness
Solution Approach 2:
The razor system is segmented into distinct functional components: the blade assembly for cutting hair and the guard assembly for protection. This segmentation allows each component to perform its specific function optimally - the blades provide cutting effectiveness while the guard provides skin protection, resolving the contradiction between shaving effectiveness and skin safety
2Object-affected harmful factors
If traditional double edged safety razors are used to avoid skin irritation, then skin safety is improved, but ease of use and adaptability deteriorate
Solution Approach 1:
The guard is designed as a universal attachment that can be applied to various types of razors (cartridge razors, disposable razors, traditional razors). This multi-functionality allows users to protect their skin regardless of their preferred razor type, maintaining ease of use while improving skin safety
Solution Approach 2:
The guard serves as an intermediary layer that bridges the gap between traditional safe-shaving methods and modern convenient razors. It allows users to enjoy the ease of use of modern razors while obtaining the skin protection of traditional methods
3Shape
If a close shave is performed to achieve aesthetic appearance, then aesthetic appearance is improved, but risk of cutting self increases
Solution Approach 1:
The guard acts as a safety intermediary that enables users to achieve close shaves without the risk of cutting themselves. By positioning the guard between the blade and skin, it maintains the aesthetic close-shave appearance while preventing accidental cuts, especially for new users
4Object-affected harmful factors
If hair is trimmed shorter rather than shaved completely, then skin safety is improved, but trimming precision deteriorates
Solution Approach 1:
The guard provides a controlled intermediary space between the blade and skin that enables precise trimming. The guard's positioning allows the blade to trim hair to a controlled length without contacting the skin, achieving both skin safety and precise trimming control
Data Source
AI summary
A shaving implement has a guard provided to fit over a blade retaining cartridge of a razor configured for wet shaving. The guard has a frame defined by top and bottom rails, spaced by first and second side edges, and elongated members defining a grate. The elongated members have outwardly extending barbs configured to arrange facial hair during a shaving process. The guard is secured over the blade retaining cartridge of the razor. When disposed over the blade retaining cartridge, the grate portion of the guard spaces any blades retained in the cartridge from the surface of a user's skin while still leaving such blades at least partially exposed to the user's facial or body hair. This enables a user to trim, rather than fully shave, his hair and further protects the user's skin from the harmful effects of close shaving.