Movable Razor Handle Structure for Easy Cartridge Attachment
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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 delivering benefits like heating or fluid dispensing, while maintaining simplicity and cost-effectiveness in manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional components with prescribed motion are added to improve ergonomics and cartridge attachment, then consumer benefits are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the cartridge holder and handle into a single integrated structure, eliminating the need for separate components with prescribed motion. The cartridge holder is formed as one piece with the handle, providing ergonomic benefits and secure cartridge attachment without requiring additional moving parts or complex assembly mechanisms.
Solution Approach 2:
The integrated cartridge holder-handle structure serves multiple functions simultaneously: it provides ergonomic grip, secures the cartridge through its geometric configuration, and eliminates the need for separate attachment mechanisms. This multi-functional design reduces component count while maintaining or improving operational benefits.
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 merging the cartridge holder and handle into a single molded component, the patent eliminates the need for tight tolerances between separate parts. The geometric configuration of the integrated structure inherently provides secure cartridge attachment without requiring precision-machined interfaces or complex assembly procedures.
3Adaptability or versatility
If existing cartridge interfaces are used, then compatibility is improved, but handle ergonomics and shave performance deteriorate
Solution Approach 1:
The patent applies local quality by designing the cartridge holder with a specific geometric configuration that is optimized for both cartridge compatibility and ergonomic performance. The holder features a curved lower portion and specific engagement surfaces that accommodate standard cartridges while providing improved handle ergonomics and shave performance through its unique three-dimensional form.
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.