Bent Sheet Retainer for Shaving Head Component Stability
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Solution Overview
Problem
Conventional shaving razor manufacturing faces inefficiencies due to buckling of traditional clip legs during installation, leading to unstable blade exposure and increased production costs, as well as labor-intensive clip installation processes.
Innovation Solution
A shaving razor design featuring a housing with bent sheet retainers extending from the top side, providing an inverse T-shape configuration that securely covers and retains components like blades, guard bars, and lubrication strips, with through holes and stops for precise positioning, allowing for adjustable blade exposure without mold modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clips are used to retain components in the shaving head, then individual component retention is achieved, but buckling occurs during installation causing unstable blade exposure and increased manufacturing complexity
Solution Approach 1:
The patent combines multiple retention functions into a single sheet retainer component that simultaneously retains multiple components (blades, guard bar, lubrication strip) within the housing. This eliminates the need for separate traditional clips for each component, preventing buckling during installation while maintaining reliable component retention and stable blade exposure.
Solution Approach 2:
The sheet retainer is designed as a multi-functional component that performs multiple retention tasks across different components within the shaving head housing. A single bent sheet structure provides retention for blades, guard bar, and lubrication strip, simplifying the manufacturing process while ensuring consistent blade exposure without the buckling issues associated with multiple separate clips.
2Reliability
If traditional clips are installed in the housing, then component retention is achieved, but additional labor and time are required for proper installation
Solution Approach 1:
The sheet retainer integrates multiple retention functions into a single component that is installed in one piece, eliminating the need for multiple separate clip installations. This reduces labor time and increases production speed while maintaining reliable retention of all components including blades, guard bar, and lubrication strip through the single bent sheet structure.
3Reliability
If multiple separate retaining means are used for each component, then individual component security is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent merges multiple separate retaining means into a single sheet retainer structure that secures multiple components simultaneously. The bent sheet configuration provides individual retention points for blades, guard bar, and lubrication strip while maintaining a simple, unified structure that reduces overall device complexity and manufacturing difficulty compared to using multiple separate clips.
Data Source
Figure 1
Figure 2A~2B
Figure 2C~4
AI summary
A shaving head (100) includes a housing (101), at least one retainer (150) extending from the housing, and at least one component (116) retained within the housing by the retainer. The retainer includes a body. The body of the retainer is bent such that at least a portion of the components is covered by a portion of the retainer.