Two-Piece Razor Head Assembly for Breaking and Retaining Split Blades
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Solution Overview
Problem
Conventional shaving razors require more skill and practice for a close shave, and their disposal contributes to waste management issues due to their complex design and non-reusable components.
Innovation Solution
A two-piece shaving head assembly with a blade loading device that breaks a standard double-edge safety razor blade into two pieces, allowing for a two-blade cartridge-style shave head that is reusable and easier to use, combining the economic advantages of a double-edge safety razor with the usability of a multi-blade cartridge system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double-edge safety razor blade is used, then cost-effectiveness and reduced waste are improved, but ease of operation deteriorates due to requiring more skill and practice
Solution Approach 1:
The blade is divided into two separate cutting edges that are positioned at different heights and angles within the cartridge assembly. Each blade segment can be independently adjusted to achieve optimal shaving angles, allowing users to customize the shaving experience without requiring advanced skill with traditional double-edge blades
Solution Approach 2:
The cartridge assembly incorporates adjustable mechanisms that allow users to modify the position and angle of each blade segment. This dynamic adjustment capability enables beginners to achieve proper blade-to-skin angles through simple mechanical adjustments rather than requiring extensive practice and skill
2Ease of operation
If a multi-blade cartridge razor is used, then ease of operation is improved, but device complexity and cost increase
Solution Approach 1:
The cartridge contains multiple blade segments (at least two cutting edges) that are separated and independently positioned. This segmentation allows each blade to be optimized for specific shaving functions while maintaining a relatively simple overall cartridge structure that is easier to manufacture than traditional multi-blade razors
Solution Approach 2:
The cartridge assembly is designed to accommodate different blade configurations and can be used with various handle types. The same basic cartridge design can support single-blade, double-blade, or multi-blade configurations, reducing overall system complexity while providing multiple functionality options
3Ease of operation
If conventional disposable razors are discarded, then ease of operation is maintained, but loss of substance increases due to plastic and metal waste
Solution Approach 1:
The cartridge assembly is designed to be reusable and refillable. Instead of discarding the entire razor after one blade is used, users can refill the cartridge with new blade segments while retaining the handle and cartridge body. This significantly reduces plastic and metal waste compared to disposable razors
Solution Approach 2:
The system allows users to change blade parameters (such as blade type, material, or configuration) by simply replacing the blade segments in the cartridge rather than discarding the entire razor. This enables adaptation to different shaving needs while maintaining the reusable cartridge infrastructure, reducing overall waste
Data Source
AI summary
A shaving head that doubles as breaking mechanism to break a safety razor blade into two pieces to form a 2-blade shaving razor. The shaving head includes a front component having a retention guide, a first position stop and a second position stop at a distance offset from the first position stop. The shaving head further includes a back component having a blade slot configured to receive a first blade portion and a second blade portion formed from breaking a double-edge safety razor blade such that the first blade portion has a different width compared to the second blade portion. The retention guide is configured to retain the first blade portion and the second blade portion in the blade slot responsive to the retention guide being at least partially inserted into the blade slot. The sharp shaving edges once installed form a shaving angle between 5 and 30 degrees, where the shaving angle is determined by where the blade is broken.