Shaving Head Assembly That Breaks and Retains a 2-Blade Razor
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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 double-edge safety razor blade into two pieces, allowing for simultaneous use of both edges, reducing skill requirements and promoting reusability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double-edge safety razor blade is used with a conventional single-blade shaving head, then the blade can be reused on both edges, but the user requires more skill and practice to achieve a close shave
Solution Approach 1:
The shaving head is divided into two separate components (front and back halves) that can be disassembled and reassembled with the double-edge blade in different configurations. This segmentation allows the blade to be used in two different orientations, providing both single-blade and multi-blade shaving experiences from one blade
Solution Approach 2:
The shaving head components are designed to be dynamically reconfigurable, allowing users to switch between different blade configurations. The front and back halves can be detached and reattached in different arrangements, transforming the shaving system from static to dynamic and adaptable
2Ease of operation
If a multi-blade cartridge razor is used, then less skill and practice is required for shaving, but the design complexity and cost increase
Solution Approach 1:
The complex multi-blade functionality is achieved through segmentation of the shaving head into modular front and back components. Instead of manufacturing a single complex multi-blade cartridge, the system uses simple components that can be combined to create multi-blade configurations, reducing manufacturing complexity while maintaining operational simplicity
Solution Approach 2:
The shaving head components are designed with universal functionality, where the same front and back halves can be reconfigured to create different blade arrangements. This multi-functionality allows a single set of components to serve multiple purposes, reducing the need for multiple specialized cartridges
3Ease of manufacture
If conventional disposable razors and cartridges are discarded, then waste management problems arise from plastic and metal parts ending up in landfills
Solution Approach 1:
The system enables recovery and continued use of the blade through reconfiguration. Instead of discarding the blade after one edge is used, the blade is recovered and reused in the opposite orientation. The modular head components can be retained and reused across multiple blade changes, reducing waste
Solution Approach 2:
The physical state and configuration of the shaving system are changed by altering the arrangement of blade edges. By changing the orientation and configuration parameters of the blade in the shaving head, the system transforms from a single-use configuration to a multi-use configuration, extending blade life and reducing 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.