Magnetic Visor Grille for Helmet Impact Protection

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Solution Overview

Problem

Existing visor arrangements for protective helmets, such as those used by forest workers, fail to provide sufficient protection against high-speed branches and are prone to wood chips sticking to the visor, impairing visibility and posing a safety risk.

Innovation Solution

A visor arrangement featuring an additional protective grille element that can be securely attached to a protective pane element using a magnet fixing device, preventing resinous wood chips from adhering and offering enhanced protection against mechanical impacts without requiring tools for attachment or detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a protective pane element made of impact-resistant plastic is used, then protection against mechanical influences such as branches is improved, but resinous wood chips stick to the surface during forest work, impairing visibility and creating safety risks

Engineering Contradiction:

Improveprotection against mechanical influencesVSAvoidadhesion of resinous wood chips

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The protective visor is divided into two separate components: a protective pane element for mechanical protection and an additional protective grille element to prevent chip adhesion. This segmentation allows each element to address specific protection needs independently, solving the contradiction between mechanical strength and chip resistance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The additional protective grille element is positioned in front of the protective pane element, creating a nested structure where the grille element serves as an outer layer that prevents wood chips from reaching and adhering to the pane element surface.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Object-affected harmful factors

If a lattice visor is used to protect against flying wood chips, then protection against chips is improved, but it does not offer sufficient protection against branches that hit at high speed

Engineering Contradiction:

Improveprotection against flying wood chipsVSAvoidprotection against high-speed branches

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The invention merges two different protective structures into a single visor arrangement: the lattice visor structure for chip protection and the solid protective pane element for branch protection. This combination allows the system to simultaneously address both protection needs without compromising either function.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If an eye shield is detachably arranged between the lattice part and forehead pad, then adaptability is improved, but the handling of the visor arrangement becomes unsatisfactory

Engineering Contradiction:

Improvedetachable eye shieldVSAvoidhandling of visor arrangement

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The mechanical attachment system is replaced with a magnetic attachment system. The magnetic fixing device provides secure attachment while allowing easy attachment and detachment through simple approach and separation movements, significantly improving handling ease while maintaining adaptability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Strength

If additional protective grille element is securely attached to protective pane element, then protection against mechanical influences is improved, but device complexity increases

Engineering Contradiction:

Improveprotection against mechanical influencesVSAvoidstructure with additional grille element

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

Complex mechanical fastening systems are replaced with simple magnetic attachment. The magnetic fixing device consists of magnets that provide secure attachment without requiring screws, clips, or other complex mechanical components, thus maintaining structural simplicity while achieving secure attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The attachment mechanism utilizes magnetic field strength as the key parameter, allowing for secure attachment through magnetic force while enabling easy detachment by overcoming the magnetic force with simple manual effort. This parameter-based approach simplifies the overall device structure.

Inventive Principle:

Principle #35Parameter changes

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 solution provides improved protection against high-speed branches and wood chips, ensuring user safety by preventing adhesion and allowing easy, tool-free attachment and detachment of the protective grille element, enhancing operational reliability and visibility.

Implementation Method 1

The visor arrangement is particularly user-friendly due to the at least one magnet fixing device. The at least one additional protective grille element can thus be fixed in an extremely simple and secure manner on the at least one protective pane element.

Methodology Applied

Scientific EffectMagnetism: Magnetism

Data Source

PatentEP3435804B1Visor assembly

Publication Date: 2019.09.11 UVEX ARBEITSSCHUTZ

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AI summary

The invention relates to a visor assembly, in particular for a protective helmet. The visor assembly comprises at least one protective pane element (4) for at least partially protecting the face of a wearer and at least one additional protective grating element (12) that can be fixed locally to the at least one protective pane element (4) for protecting the at least one protective pane element (4).