Magnetic Locking Headband for Welding Helmets

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Solution Overview

Problem

Conventional welding helmets lack sufficient adjustable and comfortable headband arrangements, which fail to accommodate different head shapes, leading to discomfort and potential impact on work efficiency.

Innovation Solution

A headband arrangement for welding helmets featuring a magnetic locking mechanism allowing adjustable positioning and a cushion structure with pivoting pins for improved fit, utilizing magnetic parts for secure locking and sliding, and a sheath with adjustable length and cushion for enhanced comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional headband arrangement is used, then the helmet can be worn on the head, but it cannot accommodate different head shapes and provides insufficient comfort

Engineering Contradiction:

Improveaccommodation of different head shapesVSAvoidcomfortability

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The headband arrangement is divided into multiple segments including a front band, rear band, and adjustable helmet mounting structure. The helmet mounting structure itself is segmented into a fixed attachment structure and a movable mounting structure with multiple stopping positions, allowing independent adjustment to accommodate different head shapes and sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The helmet mounting structure is designed to be dynamically adjustable along the longitudinal direction with multiple stopping positions. A magnetic locking mechanism provides dynamic locking at different positions, enabling the structure to adapt to different head shapes while maintaining secure attachment.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the helmet mounting structure is made fixed, then the helmet position is stable, but it cannot be adjusted to different positions

Engineering Contradiction:

ImproveadjustabilityVSAvoidposition stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

Multiple stopping positions are pre-defined along the longitudinal direction of the helmet mounting structure. The magnetic locking mechanism is pre-configured to engage at these predetermined positions, allowing quick adjustment without complex operations while ensuring stable locking at each position.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The traditional mechanical locking mechanism (screws, clips, or latches) is replaced with a magnetic locking mechanism. The magnetic attraction force provides automatic locking at the stopping positions, eliminating complex mechanical components while maintaining both adjustability and position stability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If a magnetic locking mechanism is used, then the helmet mounting structure can be securely locked at different positions, but the structure becomes more complex

Engineering Contradiction:

Improvelocking securityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The magnetic locking mechanism integrates the locking function directly into the helmet mounting structure by incorporating magnetic parts into the fixed attachment structure. This merging of functions eliminates the need for separate locking components, reducing overall structural complexity while maintaining reliable locking security.

Inventive Principle:

Principle #5Merging (Combining)

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 easy adjustment and secure locking of the helmet position relative to the headband, providing a comfortable fit for various head shapes, enhancing user experience and work efficiency by allowing precise adjustment of the helmet's position without compromising security.

Implementation Method 1

the helmet mounting structure can be locked to one of the stopping positions relative to the attachment structure and can be held there by a magnetic force generated between a pair of magnetic parts

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS11147333B2Headband arrangement and welding helmet equipped with the same

Publication Date: 2021.10.19 TECMEN ELECTRONICS CO LTD

AI summary

The present application provides a headband arrangement for a welding helmet, comprising: a fixed attachment structure; and a helmet mounting structure cooperating with the attachment structure, wherein at least two stopping positions are defined longitudinally between the attachment structure and the helmet mounting structure, the helmet mounting structure is selectively switchable between an unlocking state and a locking state, wherein in the unlocking state, the helmet mounting structure is slidable between the stopping positions relative to the attachment structure, and wherein in the locking state, the helmet mounting structure can be locked to one of the stopping positions relative to the attachment structure and can be kept there by a magnetic force generated between a pair of magnetic parts.