Safety Blade Trigger Assembly for Accidental Firing Prevention
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Solution Overview
Problem
Existing firearm safety systems fail to effectively prevent accidental firing by limiting trigger rotation and depression travel.
Innovation Solution
A trigger system with a safety blade and latch mechanism that utilizes a resistance member to bias the safety blade and latch into pre-depressed positions, preventing full trigger travel until the safety blade is depressed, and allowing full travel upon activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional trigger system is used, then the trigger can be easily depressed to fire the firearm, but the firearm is vulnerable to accidental firing due to lack of rotation limitation
Solution Approach 1:
The trigger system is divided into separate functional components: the trigger member for firing, the safety blade member for rotation limitation, and the safety latch member for engagement control. This segmentation allows each component to perform its specific safety function independently while maintaining overall system reliability without excessive complexity.
Solution Approach 2:
The safety blade member is pre-configured to interfere with the trigger member's rotation path before accidental firing can occur. The blade member protrudes into the trigger member's rotational space, creating a preliminary mechanical barrier that prevents the trigger from rotating far enough to fire accidentally, while still allowing deliberate full rotation when needed.
2Reliability
If the safety blade protrudes through the trigger housing, then the safety mechanism can effectively block trigger rotation, but the device complexity increases due to additional components and assembly requirements
Solution Approach 1:
The safety blade member and safety latch member are combined into a single integrated assembly that moves together as one unit. The blade member is rotatably coupled to the trigger housing while the latch member engages with both the blade and the trigger member, creating a unified safety mechanism that reduces the number of separate components needed while maintaining effective rotation blocking capability.
Solution Approach 2:
The safety latch member acts as an intermediary between the safety blade member and the trigger member. Instead of the blade directly blocking the trigger, the latch mediates the interaction by engaging with both components, allowing controlled full rotation when the latch is properly actuated while preventing accidental rotation, thereby simplifying the overall mechanism.
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
Enhances safety by ensuring the trigger cannot fully stroke without deliberate depression of the safety blade, thereby reducing the risk of accidental firing.
Implementation Method 1
The resistance member is configured to apply a resistive force between the trigger housing and the safety latch member rotatably biasing the safety latch member along the second pivot member into the first assembled pre-depressed position
Data Source
AI summary
A safety trigger system comprising a trigger housing, a safety blade member, a safety latch member configured to interfere with a firearm housing preventing the entire trigger stroke and the release of the firearm firing pin. The safety blade member and the safety latch member disposed within the trigger housing and held into a pre-depressed state through resistance force provided by a resistance member.


