Razor Cartridge Single Pivot Axis Glide Members
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Solution Overview
Problem
Existing shaving razors lack simplicity in construction while failing to adapt effectively to the contours of the skin and provide a responsive feel during shaving.
Innovation Solution
A razor cartridge design featuring a housing with pivotable glide members attached via retaining structures, allowing the razor to adapt to skin contours and provide a responsive shaving experience by deflecting during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate pivot axes are used for glide members, then adaptability to skin contours is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple pivot functions into a single pivot axis that supports both the first and second glide members. This merging of pivot functions reduces the number of separate pivot mechanisms needed, thereby simplifying the overall construction while maintaining the ability of both glide members to pivot and adapt to skin contours during shaving.
Solution Approach 2:
The single pivot axis serves multiple functions by supporting both the first glide member (which can pivot independently) and the second glide member (which carries the shaving aid). This multi-functional pivot axis reduces device complexity while maintaining adaptability, as one component performs what would traditionally require separate components.
2Adaptability or versatility
If glide members are made movable to adapt to skin contours, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic capability by allowing the first glide member to pivot about the single pivot axis, enabling it to move and adapt to different skin contours during shaving. This dynamic feature improves adaptability while the shared pivot axis helps control the increase in complexity.
Solution Approach 2:
The first glide member is segmented from the second glide member, with the first being movable and the second being fixed. This segmentation allows the movable portion to adapt to skin contours while the fixed portion provides stable support, achieving adaptability without requiring the entire structure to be complex and movable.
3Device complexity
If a fixed position design is used for shaving aid, then device complexity is reduced, but adaptability to skin contours deteriorates
Solution Approach 1:
The shaving system is segmented into a fixed second glide member (providing structural simplicity) and a movable first glide member (providing adaptability). This segmentation allows the majority of the structure to remain simple and fixed while a specific segment provides the necessary movement to adapt to skin contours.
Solution Approach 2:
The patent applies local quality by making only the first glide member movable while keeping the second glide member and housing fixed. This localized movement provides adaptability exactly where needed (at the skin-contacting glide member) while maintaining overall construction simplicity.
Data Source
Figure 1~2c
Figure 3a~4b
Figure 5a~6b
AI summary
A razor cartridge (100) having a pair or gliding members (300, 400) attached to a housing (500) of said cartridge, wherein both gliding members pivot about a single axis (200).