Removable Neck Shield for Welding Helmet Comfort
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Solution Overview
Problem
Welding helmets often compromise wearing comfort due to extensive neck coverage, which restricts head movement, while still needing to protect the neck from harmful radiation and particles during welding.
Innovation Solution
A welding helmet design featuring a removable and customizable neck shield system with both rigid and flexible options, allowing for different lengths and attachment methods to accommodate various use modes, including forced air and non-air modes, and incorporating an automatic darkening filter for enhanced safety and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shield covers the whole neck to protect from radiation and particles, then neck protection is improved, but wearing comfort and head mobility deteriorate
Solution Approach 1:
The neck shield is divided into multiple segments or zones with different levels of protection. The upper portion provides full coverage for radiation protection, while the lower portion is open or mesh-like to allow breathability and reduce restriction on head movement, thus resolving the contradiction between protection and mobility
Solution Approach 2:
Different regions of the neck shield have different properties: the area requiring radiation protection uses solid shielding material, while areas requiring breathability use mesh or open structures. This localized differentiation allows simultaneous achievement of protection and comfort
2Object-affected harmful factors
If a rigid neck shield is used to provide structural protection, then protection effectiveness is improved, but adaptability to different wearing conditions deteriorates
Solution Approach 1:
The neck shield incorporates flexible or adjustable elements that allow it to adapt to different head shapes, sizes, and wearing conditions while maintaining its protective function. The structure can deform or adjust to provide consistent protection across various users and conditions
3Object-affected harmful factors
If the neck shield extends further down to provide complete coverage, then protection is improved, but freedom of movement deteriorates
Solution Approach 1:
The neck shield uses flexible materials or thin film structures that can extend coverage area while allowing natural head movements. The flexibility enables the shield to move with the wearer rather than restricting movement, thus achieving both extended coverage and freedom of motion
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 provides improved wearing comfort and safety by allowing customizable neck protection and air supply options, ensuring effective shielding of the neck and face from welding hazards while maintaining freedom of movement.
Implementation Method 1
An automatic darkening filter commonly has a switchable filter that automatically changes from a light- state to a dark-state in response to incident light generated by the welding arc
Data Source
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AI summary
A welding helmet (1) with a head suspension system, a protective shield (2) and a movable visor (3). The protective shield forms a see- through window. The welding helmet further has a first neck shield (6). The protective shield forms a lower end at which the first neck shield is removably attachable.