Welding Helmet Haptic Control for Glove-Friendly Mode Switching
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Solution Overview
Problem
Conventional welding helmets with automatic darkening filters require manual button or switch activation, which can be cumbersome and difficult in certain environments, necessitating glove removal for precise manipulation.
Innovation Solution
Incorporation of a haptic sensing unit that detects touch patterns on the helmet to change operational states and access features, such as grinding mode, without the need for manual button pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional buttons or switches are used for mode changes, then the device structure is simple, but the ease of operation deteriorates due to the need for precise manipulation while wearing protective gloves
Solution Approach 1:
The patent replaces mechanical buttons and switches with a touch-sensitive control system that detects touch patterns (location, duration, sequence) to activate different functions. This allows welders to operate the helmet through simple touches rather than precise button presses, significantly improving ease of operation while wearing protective gloves.
Solution Approach 2:
The touch-sensitive surface serves multiple functions: it acts as both the protective helmet shell and the control interface. By integrating control functionality into the existing helmet structure rather than adding separate control mechanisms, the patent improves operation ease without proportionally increasing device complexity.
2Adaptability or versatility
If multiple control functions are added to the welding helmet, then the adaptability improves, but the device complexity increases due to additional controls and interfaces
Solution Approach 1:
The single touch-sensitive surface handles multiple control functions (mode switching, parameter adjustment, feature activation) through different touch patterns. This universal control interface provides high adaptability for various welding operations and accessories while maintaining relatively simple device architecture compared to having separate controls for each function.
Solution Approach 2:
The control system dynamically interprets different touch patterns (location, duration, sequence, combination of touches) to activate different functions. This dynamic response capability allows a single static touch surface to provide versatile control for multiple operations including welding modes, grinding mode, and accessory control without adding physical complexity.
3Productivity
If manual button activation is required, then the device complexity is low, but the productivity decreases due to time-consuming operations while wearing protective equipment
Solution Approach 1:
The replacement of mechanical buttons with a touch-sensitive system enables faster activation of functions. Welders can quickly toggle between welding and grinding modes or adjust parameters with simple touches rather than locating and pressing specific buttons, reducing operation time and improving productivity during welding tasks.
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
Facilitates quick and convenient control of welding helmet functions, improving usability and safety by allowing touch-based operation even with protective gloves on.
Implementation Method 1
a haptic sensing unit to sense a touch pattern occurring on at least a first portion of the shield body or automatic darkening filter assembly
Data Source
AI summary
A welding protection device that includes a shield body, an automatic darkening filter insertable in the shield body, and a haptic sensing unit to sense a touch pattern occurring on the shield body or automatic darkening filter assembly. Upon sensing of a touch pattern, a user definable command is executed that can place the welding protection device in a specific operational state.