Shaving Head Retainer with Multi-Leg Spring Mounting
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Solution Overview
Problem
Conventional shaving razor manufacturing faces inefficiencies due to clip buckling and improper installation, leading to unstable blade exposure and increased production costs.
Innovation Solution
A shaving razor design featuring a retainer with a central body, front, rear, and side legs that securely mount into grooves on the shaving head, allowing for flexible installation and retention via spring force, ensuring stable component positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clips are used to retain components individually, then each component can be retained separately, but the clips buckle during manufacturing causing unstable blade exposure
Solution Approach 1:
The patent combines multiple individual clip functions into a single integrated retainer structure with multiple legs. This retainer simultaneously secures the blade, lubrication strip, and other components, eliminating the buckling issues of multiple separate clips while maintaining reliable component retention and stable blade exposure.
Solution Approach 2:
The retainer is designed as a multi-functional component that performs multiple retention functions simultaneously. Different legs of the retainer secure different components (blade, lubrication strip, guard bar), replacing multiple specialized clips with a single universal retainer structure that improves manufacturing reliability.
2Reliability
If multiple clips are used to secure various components, then each component is retained, but improper installation requires additional labor and time
Solution Approach 1:
By merging multiple retention functions into a single retainer component, the patent reduces the number of installation steps. The integrated retainer is installed once and simultaneously secures all components, eliminating the need to individually install multiple clips and reducing labor requirements.
Solution Approach 2:
The retainer is designed with pre-configured legs and engagement features that automatically position and secure components during a single installation process. This preliminary configuration of the retainer structure ensures proper component retention without requiring additional adjustment or installation steps for each component.
3Adaptability or versatility
If clips are bent at multiple locations, then components can be retained, but manufacturing becomes difficult and tolerances are hard to manage
Solution Approach 1:
The patent consolidates multiple bending locations into a single integrated retainer structure with optimized leg configurations. This reduces the cumulative tolerance errors that would result from multiple separate clip bends, while maintaining the ability to retain various components through the distributed leg structure.
Solution Approach 2:
The retainer features locally optimized leg designs with specific bend locations and geometries tailored for each component retention requirement. This localized optimization of the retainer structure allows for precise control of tolerances at each engagement point while maintaining overall structural integrity and component retention capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances manufacturing efficiency by preventing clip buckling and ensuring proper installation, resulting in consistent blade exposure and reduced production costs.
Implementation Method 1
a retainer with a central body, front, rear, and side legs that securely mount into grooves on the shaving head, allowing for flexible installation and retention via spring force
Data Source
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AI summary
A shaving head (100) for a shaver having a side-cap retainer (150) secured to sides (110, 112) of the shaving head. Each of the retainers having a plurality of legs (170, 172, 174) operable to abut various portions of the shaving head, thereby securing components of the shaving head thereto.