Electrician Helmet with Movable Face Shield and Flexible Bib

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Solution Overview

Problem

Existing protective helmets for electricians, while providing mechanical and electrical protection, lack comprehensive thermal protection and are not economical or simple to manufacture and use.

Innovation Solution

A protective helmet design featuring a non-removable, movable face shield and a flexible bib integrated with the helmet, which can be configured to extend for enhanced protection from thermal hazards, made of materials resistant to fire and infrared radiation, and secured with rivets for ease of use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a rigid face shield is used for protection, then thermal protection is improved, but ease of operation deteriorates

Engineering Contradiction:

Improvethermal protectionVSAvoidease of operation

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The protective shield is divided into two distinct parts: a rigid face shield for thermal protection and a flexible bib for ease of operation. The rigid face shield provides comprehensive thermal protection against electric arcs and molten metal, while the flexible bib made of fire-resistant material ensures ease of operation by allowing the wearer to move freely without compromising protection. This segmentation resolves the contradiction by assigning different functional characteristics to different components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The helmet employs composite construction combining rigid and flexible materials with fire-resistant properties. The rigid face shield is made of fire-resistant material providing thermal protection, while the flexible bib is made of fire-resistant textile material providing ease of operation. This composite approach allows the helmet to simultaneously achieve both thermal protection and ease of operation by leveraging the complementary properties of different materials.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If multiple separate protective components are used, then protection coverage is improved, but device complexity deteriorates

Engineering Contradiction:

Improveprotection coverageVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The rigid face shield and flexible bib are merged into a single integrated helmet assembly that provides comprehensive protection. The face shield is secured to the helmet shell, and the bib is attached to the face shield, creating a unified protective system that covers the head, face, and upper body. This merging approach maintains extensive protection coverage while reducing device complexity by eliminating the need for multiple separate protective components.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If a non-removable integrated shield is used, then reliability is improved, but ease of operation deteriorates

Engineering Contradiction:

ImprovereliabilityVSAvoidease of operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The protective system incorporates dynamic elements that allow movement and adjustment. The flexible bib can be deployed or retracted based on the work environment, and the face shield can be positioned to provide optimal protection. This dynamic capability maintains reliability by ensuring protection is always available when needed, while improving ease of operation by allowing the wearer to adjust the protective elements according to specific task requirements.

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

The helmet offers comprehensive mechanical, electrical, and thermal protection, particularly effective against thermal attacks from electric arcs and molten metal, while being convenient and economical to produce and use, with easy transition between protective configurations.

Implementation Method 1

protective performance, while being particularly simple, convenient and economical both in its use and in its manufacture... protected from possible flames and / or projections of molten metal the face of the wearer... made of materials resistant to fire and infrared radiation

Methodology Applied

Scientific EffectThermal radiation blocking: Absorption (EM radiation)

Implementation Method 2

materials resistant to fire and infrared radiation... coating layer configured to resist infrared rays

Methodology Applied

Scientific EffectInfrared radiation resistance: Infrared Radiation

Data Source

PatentEP2844098B1Protective helmet for mechanical, electrical and thermal stress protection, for electricians

Publication Date: 2016.06.22 SOCI T ANONYME DES ETS CATU

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AI summary

The invention concerns a protective helmet designed to be worn by an electrician, comprising: an outer shell (2); a face shield (3) integral with said helmet (1), said face shield is irremovably secured to said outer shell and is mobile relative to said outer shell, and allows a stowed position in which it is at least partially inserted into an inner space of said helmet (1) which is defined by said outer shell, and a working position in which it projects from said inner space; and a flexible flap (4) integral with said helmet, which is irremovably secured to said face shield, and mobile relative to said face shield, and which further allows a retracted configuration in which it at least partially covers a surface (16) of said face shield and a working configuration in which it is deployed and extends said face shield.