Ergonomic Razor Handle Geometry for Precise Pubic Shaving
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Solution Overview
Problem
Existing shaving razors designed for facial hair removal are inadequate for the pubic region due to complex anatomical curves, skin mobility, and unique hair characteristics, leading to difficulty in achieving effective and safe hair removal without irritation.
Innovation Solution
A shaving razor system with an ergonomically designed handle featuring a convex upper surface and concave lower surface, including recessed areas for improved grip and control, along with a cartridge ejection button positioned to prevent accidental activation during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional shaving razor handle design is used, then the razor can be easily manufactured and held, but it cannot provide proper control and manipulation for shaving the pubic region
Solution Approach 1:
The handle incorporates a convex upper surface and concave lower surface with curved contours that conform to the natural anatomy of the pubic region. This curvature allows the handle to be positioned at optimal angles for accessing different areas of the pubic region, enabling users to reach difficult-to-access areas while maintaining secure grip and control throughout the shaving process.
Solution Approach 2:
The handle features a recessed area positioned to receive a user's finger, creating a localized grip zone that provides enhanced control during pubic region shaving. This specific local modification allows precise manipulation of the razor blade angle and position, which is critical for safely navigating the complex anatomy of the pubic area without causing irritation or injury.
2Ease of operation
If the handle is made smaller for ease of handling in the restricted bikini area, then portability is improved, but precision control and visibility of the shaving area are compromised
Solution Approach 1:
The handle design extends in multiple dimensions with a convex upper surface and concave lower surface that create depth and dimensional complexity. This three-dimensional ergonomics design provides multiple contact points for the user's hand, enabling precise control and stable positioning even though the overall handle volume remains compact for accessing the restricted bikini area.
Solution Approach 2:
The curved surfaces of the handle create natural hand positioning contours that guide the user's grip. The convex and concave surfaces work together to provide tactile feedback and stable holding positions, allowing users to maintain precise control and visibility of the shaving area without requiring excessive handle length or volume.
3Ease of manufacture
If a detachable cartridge system is used, then blade replacement is enabled, but the device complexity increases
Solution Approach 1:
The shaving razor is divided into separable components: a handle and a detachable cartridge assembly containing the blade. This segmentation allows the cartridge to be easily removed and replaced when the blade becomes dull or damaged, extending the usable life of the handle and reducing waste. The modular design enables users to purchase only the necessary components and simplifies manufacturing through standardized attachment interfaces.
Data Source
AI summary
A shaving razor system having a shaving razor handle that includes a proximal end, a distal end, an upper surface extending between the proximal end and the distal end. The upper surface having a generally convex profile. The shaving razor handle has a lower surface extending between the proximal end and the distal end, the lower surface has a generally concave profile. A shaving razor cartridge releasably is mounted to the proximal end of the shaving razor handle. A cartridge ejection button is positioned on the lower surface towards the proximal end.