Pivoting Razor Cartridge Assembly for Skin Contour Adaptation
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Solution Overview
Problem
Existing shaving razors with disposable cartridges face challenges in providing efficient and versatile shaving experiences due to limitations in blade cartridge rotation and attachment mechanisms, leading to suboptimal skin contact and user convenience.
Innovation Solution
A personal shaving device with a pivotable blade cartridge system featuring a U-shaped cartridge support frame, pivot assemblies, and cushioning mechanisms, allowing 180-360-degree rotation, along with a detachable and adjustable handle connection, enabling enhanced skin contour adaptation and ease of replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the blade cartridge is fixed in position, then the structure is simple and reliable, but the device cannot adapt to different skin contours
Solution Approach 1:
The blade cartridge is made dynamically positionable through a pivot assembly that allows rotation relative to the handle. The cartridge can be rotated to different angles (e.g., 0°, 45°, 90°) and locked into position, enabling adaptation to various skin contours while maintaining structural integrity through the U-shaped support frame with integrated pivot mechanism
2Adaptability or versatility
If the blade cartridge rotates freely, then skin contour adaptation is improved, but the cartridge position becomes unstable
Solution Approach 1:
The system transitions from static to dynamic with locking capability. The cartridge can rotate freely when needed for positioning, then lock securely at desired angles using the integrated locking mechanism in the pivot assembly, providing both flexibility and stability as required
Solution Approach 2:
The pivot assembly allows the cartridge to change its angular parameter relative to the handle. By adjusting the rotation angle and locking at specific positions, the system optimizes both adaptability during adjustment and stability during use
3Ease of operation
If the handle is permanently attached, then structural integrity is maintained, but ease of replacement is reduced
Solution Approach 1:
The shaving device is divided into separable components: the handle and the blade cartridge. The cartridge can be easily detached from the handle for replacement, while the handle remains intact. This segmentation enables quick cartridge changes without damaging the handle structure
Solution Approach 2:
The blade cartridge is designed as a disposable or replaceable component with a limited service life. Once the blades become dull, the entire cartridge is replaced rather than serviced, maintaining simplicity and ensuring consistent performance
Data Source
AI summary
A shaving device comprising a head assembly having a support member and a blade cartridge. The support member is configured to be detachably coupled to a handle. The blade cartridge has a first and a second face wherein at least one of the first or second faces comprises at least one razor blade. The blade cartridge is configured to be rotatably coupled to the support member about a pivot axis such that the blade cartridge is pivotable by a user to select one of the first or second faces.