Transparent Curable Adhesive Blade Guard for Razor Safety

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing razor blade test samples pose a risk of injury due to exposed cutting edges, and conventional protective caps obscure the product, making them difficult to display effectively.

Innovation Solution

An optically transparent, hardening adhesive is applied in one or more layers over the razor blades and/or the razor blade holder to completely embed the cutting edges, providing a strong and visible blade guard that prevents injuries and enhances presentation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a protective cap is attached to the razor blade holder, then the cutting edges are protected, but the product appearance is obscured and it is difficult to display

Engineering Contradiction:
Improveprotection against injuriesVSAvoidproduct visibility
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The harmful cutting edges are extracted from direct exposure by embedding them within the adhesive matrix. The adhesive encapsulates the cutting edges while maintaining optical transparency, effectively separating the protective function from the visual display function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

An optically transparent adhesive serves as an intermediary medium between the cutting edges and the external environment. This mediator provides protection while allowing light to pass through, enabling both safety and product visibility simultaneously.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a protective cap is firmly connected to the razor blade holder, then protection is ensured, but the structure becomes complex and material costs increase

Engineering Contradiction:
Improveprotection against injuriesVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The protective function is merged with the adhesive bonding function. The same adhesive that secures the blade to the holder also provides protection by embedding the cutting edges, eliminating the need for separate protective components and simplifying the overall structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The adhesive performs multiple functions simultaneously: it bonds the blade to the holder, protects the cutting edges by embedding them, and maintains optical transparency for display purposes. This multi-functionality reduces the number of components needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If the cutting edges are completely embedded in adhesive, then protection is maximized, but the adhesive must be optically transparent to maintain visibility

Engineering Contradiction:
Improveprotection against injuriesVSAvoidoptical transparency
Core Design Contradiction:
Object-affected harmful factorsVSIllumination intensity

Solution Approach 1:

The adhesive is applied with specific local properties: it is optically transparent in the regions where visibility is needed, while providing complete embedding and protection of the cutting edges. The adhesive's optical and mechanical properties are optimized for their specific functions.

Inventive Principle:
Principle #3Local quality

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 adhesive effectively protects the cutting edges, allowing the razor blades to remain visible while ensuring safety, eliminating the need for protective caps and reducing material costs and production complexity.

Implementation Method 1

an optically transparent hardening adhesive is applied in one or more layers over the razor blades and/or the razor blade holder

Methodology Applied
Scientific EffectCuring: Photopolymerisation

Data Source

PatentEP3370930B1Blade guard for razor blades made of curable adhesive
Publication Date: 2020.10.07 ELED REVOLUTION GMBH

AI summary

The invention relates to the use of a curable adhesive as a blade guard for razor blades of razor systems, wherein the curable adhesive has one or more layers applied over the razor blades and/or the razor blade holder, wherein the outer cutting edges of the razor blades are completely embedded in the adhesive and the curable adhesive is an optically transparent curable adhesive.