Shaving Razor Handle Geometry for Precise Pubic Hair Removal
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Solution Overview
Problem
Existing shaving razors designed for facial and leg hair removal are ineffective and unsafe for pubic hair removal due to complex anatomical curves, skin mobility, and unique hair characteristics, lacking ergonomic design for proper control and precision.
Innovation Solution
A shaving razor system with a handle and cartridge configuration that includes a concave lower surface, recessed areas for finger placement, and a neutral angle for improved grip and control, allowing precise shaving of the pubic region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional shaving razors designed for facial and leg hair removal are used, then the device structure is simple and easy to manufacture, but the device cannot effectively address the complex anatomical curves and skin mobility in the pubic area
Solution Approach 1:
The razor handle is designed with flexibility to adapt to the complex anatomical curves and skin mobility in the pubic area. The handle can dynamically adjust its shape and position to follow the contours of the body, enabling effective shaving on curved surfaces while maintaining a relatively simple overall structure.
Solution Approach 2:
The razor system employs adjustable parameters including the angle of the blade relative to the handle (optimized between 8-15 degrees) and the contact area dimensions (900-1300 mm²), allowing the device to adapt to different anatomical conditions in the pubic region while maintaining manufacturing simplicity.
2Ease of operation
If conventional razors are used for pubic hair removal, then the device is simple to operate, but the user lacks proper control and precision leading to nicks and cuts
Solution Approach 1:
The handle features a specifically designed contact area with optimized dimensions (900-1300 mm²) and angle (8-15 degrees) that provides enhanced grip and control precisely where the user's hand contacts the device. This localized optimization improves both control and safety without complicating the overall operation.
Solution Approach 2:
The razor design inherently guides the user's hand placement and positioning through its ergonomic geometry, automatically providing the correct angle and contact point for safe operation. The design self-corrects for improper positioning, reducing the need for user skill while maintaining safety.
3Ease of operation
If the contact area is made larger to improve control, then the grip and control are enhanced, but the device becomes less maneuverable in the restricted bikini area
Solution Approach 1:
The contact area is optimized to specific parameter ranges (900-1300 mm²) that balance grip surface area with device maneuverability. This precise parameter optimization provides sufficient control for safe shaving while maintaining the compactness needed for navigating the restricted pubic area.
Data Source
AI summary
A shaving razor system with a shaving razor cartridge having a shaving surface with at least one blade. The shaving razor cartridge has a proximal end and a distal end. A shaving razor handle has a proximal end configured to attach to the distal end of the shaving razor cartridge. The proximal end has an upper surface. The shaving razor handle has a distal end with a lower contacting surface. The shaving razor cartridge and the lower contacting surface define a generally horizontal resting plane with areas of contact to the generally horizontal resting plane includes the shaving razor cartridge and the lower contacting surface. An area defined by the generally horizontal resting plane and the shaving razor system is about 900 mm2 to about 1300 mm2. The shave plane and the generally horizontal resting plane define an angle of about 8 degrees to about 15 degrees.