Resilient Retainer Legs for Shaving Head Assembly
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Solution Overview
Problem
Conventional shaving razors face manufacturing inefficiencies due to buckling clips and unstable blade exposure, leading to production delays and increased costs, as traditional clips require multiple bending locations and precise tolerances, making proper installation labor-intensive.
Innovation Solution
A retainer system with resilient legs that flex and slide into slots, securely mounting shaving head components, including blades, guard bars, and lubrication strips, to stabilize component exposure and simplify assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clips are used to retain shaving head components, then components can be secured to the housing, but the clips buckle during manufacturing and cause unstable blade exposure
Solution Approach 1:
The patent changes the physical parameters of the retainer by using a resilient material that can elastically deform. The retainer body is configured to flex during installation and then return to its original shape, providing stable retention without buckling. This elastic deformation capability allows the retainer to accommodate manufacturing tolerances while maintaining consistent blade exposure.
Solution Approach 2:
The retainer is designed as a dynamic component that can flex and deform during installation rather than being a rigid structure. The resilient body allows the retainer to adapt during the manufacturing process and then stabilize in its functional position, preventing the buckling that occurs with traditional rigid clips.
2Reliability
If traditional clips with multiple bending locations are used, then components can be retained at multiple positions, but manufacturing becomes complex and labor-intensive
Solution Approach 1:
The retainer is segmented into multiple legs (first leg, second leg, third leg) that can independently engage with different components. Each leg can be formed as a separate element rather than requiring multiple bending operations on a single clip, simplifying the manufacturing process while maintaining the ability to retain multiple components.
Solution Approach 2:
The patent merges the retention function with a simplified single-piece construction. Instead of using multiple separate clips or requiring multiple bending operations, the retainer body is formed as one integrated component with multiple legs, reducing manufacturing steps and labor requirements.
3Strength
If traditional clips are installed with force, then components can be secured to the housing, but the clips buckle upwards and require additional inspection labor
Solution Approach 1:
The retainer utilizes elastic deformation to achieve retention without excessive force. The resilient body can flex during installation and then returns to its original shape, providing sufficient retention force without causing buckling or requiring additional inspection steps.
Solution Approach 2:
The retainer is designed to self-adjust and self-lock into position through its elastic properties. The resilient body automatically finds its stable position and maintains retention force without requiring external inspection or adjustment, improving production efficiency.
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 retainer system enhances manufacturing efficiency by stabilizing blade exposure, reducing production delays, and lowering costs by ensuring consistent component installation without the need for extensive labor and precise tolerances.
Implementation Method 1
A retainer system with resilient legs that flex and slide into slots, securely mounting shaving head components
Data Source
AI summary
A shaving head having a retainer with a plurality of legs operable to abut various portions of the shaving head, thereby securing components of the shaving head thereto.