Shaving Razor Component Twist Testing for Visual Strength Comparison

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Solution Overview

Problem

Consumers face difficulty in understanding the improved performance, comfort, or benefits of shaving razor components, and existing testing methods do not effectively demonstrate the flexibility, strength, and/or resiliency of these components in a clear and visual manner.

Innovation Solution

A method involving a rotatable and fixed clamp system to secure and twist shaving razor components, allowing them to fail, thereby facilitating a comparison of their flexibility, strength, and/or resiliency, using calibrated clamping forces to avoid crushing and ensure failure at the component's midsection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If existing testing methods are used to evaluate razor components, then the components can be tested for suitability, but the results cannot be clearly communicated to consumers to demonstrate improved performance

Engineering Contradiction:
Improvecommunication of performance benefits to consumersVSAvoidconsumer understanding of component performance
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent creates visual copies or representations of the component's performance through the demonstration device. The flexible component is attached to a movable platform that visually replicates and amplifies the component's flexibility, strength, and resiliency characteristics, allowing consumers to directly observe performance differences rather than relying on abstract test results

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces conventional mechanical testing systems with a demonstration system that uses a movable platform and flexible component arrangement to visually display performance characteristics. Instead of using complex testing machinery, the system substitutes a simplified mechanical arrangement that directly translates component properties into observable motion and deformation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If calibrated clamping forces are applied to avoid crushing components, then the components can be tested without damage, but it becomes difficult to demonstrate their strength and resiliency characteristics

Engineering Contradiction:
Improvedemonstration of component strength and resiliencyVSAvoidcomponent integrity during testing
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The patent segments the testing approach by using multiple clamps positioned at different locations along the component. This allows different sections of the component to be tested independently for different properties - some sections can be clamped to demonstrate strength while other sections remain free to demonstrate flexibility and resiliency, preventing crushing while showcasing all characteristics

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs dynamic clamping where the clamps can adjust their position and force application during the demonstration. The clamps are designed to apply calibrated forces that prevent crushing while allowing the component to dynamically exhibit its strength and resiliency through controlled deformation and recovery movements

Inventive Principle:
Principle #15Dynamics

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

Enables clear demonstration of the differences in flexibility, strength, and resiliency of shaving razor components, aiding consumers in making informed choices.

Implementation Method 1

rotating the rotatable clamp. The rotating may cause the shaving razor component to fail

Methodology Applied
Scientific EffectTorsion: Torque

Data Source

PatentEP4450942B1Shaving razor component test method
Publication Date: 2025.11.05 THE GILLETTE CO
  • EP4450942B1 patent drawingFigure 1~2
  • EP4450942B1 patent drawingFigure 3~4
  • EP4450942B1 patent drawingFigure 5~7

AI summary

A shaving razor component test method may include securing the ends of a shaving razor component between a rotatable clamp and a fixed clamp and rotating the rotatable clamp to cause the shaving razor component to fail. Multiple shaving razor components may be tested simultaneously.