Foldable Cartridge Razor With Elastic Neck
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Solution Overview
Problem
Existing razors have poor left-right flexibility, leading to uncomfortable shaving experiences due to the need for frequent wrist bending and position changes. Additionally, they often have complex rotating parts, expose the razor blade, and lack effective moisture removal, compromising safety, convenience, and hygiene.
Innovation Solution
A foldable cartridge razor design featuring a razor blade head connected to an elastic neck part that allows elastic deformation in three axes, facilitating even contact with the shaving surface with minimal wrist rotation. The razor blade is accommodated within the handle when folded, eliminating the need for a separate cover and enhancing portability and safety. High-velocity air is used to reduce moisture on the blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the razor blade cartridge is directly joined to the handle, then the structure is simple, but the left-right flexibility is poor
Solution Approach 1:
The patent applies the dynamics principle by introducing a rotatable neck part that enables the razor blade cartridge to rotate relative to the handle. This dynamic connection allows the shaving head to adapt its angle and orientation during use, significantly improving left-right flexibility and ease of operation without requiring complex mechanical assemblies
2Ease of operation
If rotating parts with springs or steel are used, then the razor blade can rotate, but the production becomes complex and recycling difficult
Solution Approach 1:
The patent applies parameter changes by transitioning from traditional spring or steel-based rotating mechanisms to a resin material with controlled flexibility. By adjusting the material's physical parameters (flexibility, elasticity), the invention achieves the desired rotation capability while simplifying manufacturing and enabling easier recycling, as the entire neck part can be molded as a single piece without complex mechanical components
3Ease of operation
If the razor blade is exposed to the outside, then shaving access is good, but safety is compromised and portability is reduced
Solution Approach 1:
The patent applies dynamics by designing a foldable razor blade cartridge that can transition between two states: an extended position during shaving that provides good access, and a folded position for storage that retracts the blade into the handle. This dynamic configuration maintains safety by eliminating the need for separate covers while preserving shaving effectiveness when deployed
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
The design improves shaving performance by ensuring even blade contact, enhances safety and convenience through foldable and portable design, and maintains hygiene by reducing moisture and accommodating the blade within the handle.
Implementation Method 1
connecting a razor blade head having a razor blade to a neck part having elasticity so that the razor blade head elastically deforms in three axes
Implementation Method 2
significantly reduces remaining moisture on the razor blade after using the razor by blowing it away with high-velocity air
Data Source
AI summary
The present disclosure relates to a foldable cartridge razor which may improve shaving performance and enhance safety, portability, and hygiene by folding and concealing a head part of a razor blade and includes a handle having a fitting piece formed therein, a neck part rotatably connected to a fitting piece of the handle and a razor blade head detachably and rotatably connected to a neck part so that the razor blade is folded to be in close contact with the inside of the handle.