Movable Razor Handle Structure for Ergonomics and Cartridge Motion
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Solution Overview
Problem
Current razor handle designs with replaceable cartridges face challenges such as high manufacturing costs, poor ergonomics, and durability issues due to complex components and tight tolerances, while also limiting consumer benefits like skin interaction and shaving performance.
Innovation Solution
A razor structure featuring a rigid member with movable portions that allow for multiple axes of motion, enabling easy cartridge attachment and detachment, and incorporating a skin interconnect member for enhanced skin interaction, while simplifying manufacturing through a layering of functional components above and below a thin, wide rigid member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional components with prescribed motion are added to improve ergonomics and cartridge attachment mechanisms, then consumer benefits are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The handle is divided into multiple segments (first handle portion, second handle portion, third handle portion) that can move relative to each other about different axes. This segmentation allows each portion to be optimized for specific functions while reducing the need for additional complex components, as the segments themselves provide the prescribed motion capabilities.
Solution Approach 2:
The handle incorporates dynamic capabilities by enabling the handle portions to move relative to one another about multiple axes. This dynamic design allows the handle to adapt its configuration during use, providing improved ergonomics and cartridge attachment mechanisms without requiring separate actuators or complex mechanical systems.
2Reliability
If tight tolerances are specified for additional components, then precision and reliability are improved, but manufacturing cost and assembly difficulty increase
Solution Approach 1:
By segmenting the handle into distinct portions that move relative to each other, the design allows each segment to be manufactured independently with standard tolerances. The relative motion between segments is achieved through their structural design rather than requiring precision-machined interfaces, thereby reducing manufacturing and assembly difficulty while maintaining reliability.
3Adaptability or versatility
If existing cartridge interfaces are used to accommodate heating elements, then compatibility is maintained, but manufacturing cost and handle ergonomics worsen
Solution Approach 1:
The invention positions benefit delivery components in a different spatial dimension by extending them through the cartridge from the handle. This allows heating elements or other benefit delivery mechanisms to be positioned closer to the skin without requiring modifications to the cartridge interface itself, maintaining compatibility while enabling new functionality and improving ergonomics.
4Temperature
If heating elements are placed in the cartridge, then skin benefit delivery is improved, but manufacturing cost increases
Solution Approach 1:
Instead of placing heating elements within the cartridge, the invention extends benefit delivery components through the cartridge from the handle. This allows heating elements to be positioned in the handle portion that contacts or approaches the skin, enabling temperature control while using existing cartridge structures, thereby reducing manufacturing costs.
Solution Approach 2:
The handle is designed to provide multiple functions including heating, cooling, or fluid delivery through a single integrated system. This multi-functionality allows the same basic structure to serve multiple purposes, reducing the need for separate components and lowering overall manufacturing costs while maintaining skin benefit delivery capabilities.
Data Source
AI summary
A handle for a shaving razor in which the handle comprises a frame and a movable member assembly operably coupled to the frame such that the frame is disposed between the movable member assembly and where the movable member assembly upper and lower portions are configured to move both above and below the frame. The movement can be linear or rotational. The movable member assembly comprises one or more springs.