Dual Shaving Razor With Flexible Wings For Independent Cartridge Pivoting
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Solution Overview
Problem
Conventional dual shaving razor assemblies lack control over the angles and orientations of their razor heads, leading to increased pressure on the skin and a higher likelihood of nicks and cuts due to fixed or rigidly secured cartridges that cannot rotate independently or transversely, limiting shaving efficiency and control.
Innovation Solution
A dual shaving razor assembly with flexible and resilient legs and wings that allow each shaving cartridge to pivot independently relative to the main body, enabling separate control over angle and pressure, and allowing transverse rotation of cartridges for improved control and reduced pressure on the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If shaving cartridges are fixed in a non-rotatable manner to the main body, then structural stability is improved, but control over the angle and orientation of the razor heads deteriorates
Solution Approach 1:
The shaving cartridges are made dynamically adjustable through flexible arches that allow rotation and angle adjustment. The arches can bend to change the orientation of the cartridges relative to the skin surface, enabling the user to adapt the shaving angle dynamically rather than being fixed in a rigid position.
Solution Approach 2:
The patent changes the physical state of the connection between cartridges and main body from rigid to flexible. The flexible arches allow parameters such as angle and orientation to be changed during operation, transforming the system from a fixed-parameter structure to a variable-parameter structure that adapts to different shaving needs.
2Ease of operation
If downward pressure is applied to the center of the flexible arch to adjust the angle of the shaving cartridges, then the angle control is improved, but the pressure applied to the shaving cartridges increases excessively
Solution Approach 1:
The patent applies local quality by providing individual flexible arches for each shaving cartridge rather than a single centralized flexible structure. This allows independent adjustment of each cartridge's angle without requiring excessive force on a thick main body, as each thin flexible arch can be adjusted with minimal pressure applied locally at its free end.
3Device complexity
If both shaving cartridges are rotated at the same time with the same pressure applied to the center of the flexible arch, then structural simplicity is improved, but independent control of each cartridge deteriorates
Solution Approach 1:
The patent segments the flexible arch structure into separate individual arches for each shaving cartridge. This segmentation allows each cartridge to be controlled independently through its own flexible arch, enabling separate rotation and pressure adjustment of each cartridge while maintaining relatively simple overall structure.
4Ease of manufacture
If the main body is constructed as a unitary flexible arch, then manufacturing simplicity is improved, but transverse rotation of the shaving cartridges relative to each other is prevented
Solution Approach 1:
The patent segments the main body into separate components including individual flexible arches for each cartridge and a handle body. This segmentation enables transverse rotation of cartridges relative to each other by allowing independent movement of each arch-cartridge assembly, while still maintaining ease of manufacture through modular construction.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design allows for better control over the shaving process by maintaining both cartridges in contact with the skin, reducing nicks and cuts, and enabling independent adjustment of pressure and angle, enhancing shaving efficiency and user control.
Implementation Method 1
A first flexible and resilient wing extends from the first side of the main body between the first pair of legs to a position immediately above a respective first shaving cartridge held by the first pair of legs, and is adapted to engage an upper surface of the first shaving cartridge to pivot the first shaving cartridge relative to the main body upon application of an external force to the first flexible and resilient wing
Data Source
AI summary
A dual shaving razor assembly includes an arched central main body and first and second pairs of legs extending down from first and second sides of the main body, respectively, the legs of each pair being in spaced relation to each other. Each pair includes a securing arrangement for securing a shaving cartridge having blades thereto such that each shaving cartridge is adapted to pivot relative to the main body. First and second flexible and resilient wings extend from the first and second sides, respectively, of the main body between the first and second pairs of legs to a position immediately above a respective shaving cartridge held by the respective pair of legs. The wings are adapted to engage an upper surface of the respective cartridge to pivot the shaving cartridge relative to the main body upon application of an external force to the respective flexible and resilient wing.