Welder Guard Lid Sensing to Prevent Accidental Jaw Closure
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Solution Overview
Problem
Welding device jaws can accidentally close on operators' fingers or hands during the welding process, causing injury due to unintended activation of the clamping operation.
Innovation Solution
A welder guard system with a base and a lid, incorporating a safety switch system that includes an actuating device and a sensing device. The actuating device sends a wireless signal to prevent the welding jaws from closing when the lid is in an open position, ensuring the jaws remain open even if a clamping operation is initiated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the welding jaws are left accessible for easy loading of linear elements, then the ease of operation is improved, but the risk of accidental closure on operator's fingers or hands increases
Solution Approach 1:
A safety guard system is introduced as an intermediary between the operator and the welding jaws. The guard includes a sensor that detects the presence or absence of the guard, and this detection mediates the clamping operation by preventing closure when the guard is absent (open position), thus protecting the operator while allowing easy access when properly guarded.
Solution Approach 2:
The safety system uses feedback from a sensor that continuously monitors the position of the safety guard. When the sensor detects that the guard is in the open position, it sends a signal to prevent the clamping operation. This feedback mechanism ensures that the welding jaws can only close when the guard is properly in place, eliminating accidental injury risk while maintaining operational ease.
2Object-affected harmful factors
If a safety guard system with sensor is implemented to prevent accidental jaw closure, then the safety of the operator is improved, but the device complexity increases
Solution Approach 1:
The patent introduces a safety guard system with a sensor as an intermediary component. The sensor detects whether the guard is in place and mediates the clamping operation by enabling or disabling it accordingly. This adds safety functionality while maintaining relatively simple integration with the existing welding device architecture.
Solution Approach 2:
The patent replaces complex mechanical interlocking mechanisms with a sensor-based detection system. Instead of using mechanical blocks or interlocks to prevent jaw closure, the system uses electronic sensing and control signals to achieve the same safety function, thereby reducing mechanical complexity while improving reliability.
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
Prevents accidental closure of welding jaws when the lid is open, protecting operators from injury by ensuring the jaws remain open during loading and operation, thus safeguarding against finger or hand crushing and exposure to hot slag, sparks, or debris.
Implementation Method 1
The actuating device can be attached to the lid of the welder guard system and can provide a wireless signal
Data Source
AI summary
A welder guard system is disclosed. According to various embodiments of the concepts and technologies described herein, the welder guard system can include a base and a lid attached to the base. The welder guard system can also include a safety switch system having an actuating device and a sensing device. The actuating device can be attached to the lid of the welder guard system and can provide a wireless signal. The sensing device can cause a welding device to prevent a welding jaw of the welding device from closing in response to activation of a clamping operation of the welding device when the sensing device fails to receive the wireless signal provided by the actuating device.