Straight Pull Trigger Safety Blade Translational Mechanism
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Solution Overview
Problem
Existing semi-automatic firearms require manual resetting of the hammer after each shot, limiting firing capacity, and safety mechanisms with rotational hinged safety blades can fail to disengage if pressed incorrectly, leading to accidental discharge risks.
Innovation Solution
A straight pull trigger assembly with a straight pull safety blade that translates only horizontally, ensuring safety retraction regardless of pressure location, comprising a trigger shoe, safety plunger, and compression device, allowing for translational movement without rotation, thus preventing accidental discharges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotational hinged safety blade is used in semi-automatic firearms, then the safety mechanism can be engaged and disengaged, but it may fail to disengage if pressed incorrectly, leading to accidental discharge risks
Solution Approach 1:
The patent inverts the traditional rotational hinged safety blade mechanism into a straight pull translational mechanism. Instead of rotating the safety blade to disengage, the user simply pulls it straight backward. This inversion eliminates the problem of incorrect pressing angles causing failure to disengage, as the linear motion path is more intuitive and less prone to user error.
Solution Approach 2:
The patent changes the motion parameter of the safety blade from rotational (angular displacement) to translational (linear displacement). This parameter change transforms the disengagement action from a complex rotational movement that requires precise positioning to a simple linear pull that is more forgiving and reliable.
2Reliability
If a straight pull trigger assembly is used to ensure reliable safety disengagement, then accidental discharge risk is reduced, but the device complexity increases compared to traditional rotational mechanisms
Solution Approach 1:
The patent segments the trigger assembly into distinct functional components: the trigger shoe, the straight pull safety blade, and the compression device. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity. The safety blade is separated as an independent translational element rather than being integrated into a complex rotational mechanism.
Solution Approach 2:
The patent extracts the rotational hinged mechanism from the design and replaces it with a dedicated straight pull safety blade component. This extraction eliminates the complexity of hinges and rotational joints while maintaining the safety function, resulting in a cleaner, more reliable design with fewer potential failure points.
3Stability of the object's composition
If the safety blade is designed to translate only horizontally without rotation, then movement control is improved and accidental discharge is prevented, but the ease of manufacture decreases
Solution Approach 1:
The patent applies dynamics by allowing the safety blade to move freely in the horizontal translational direction while using guide rails and stops to constrain vertical and rotational movements. This dynamic constraint system provides precise movement control during operation while maintaining manufacturing simplicity, as the guides and stops are straightforward mechanical features rather than complex precision components.
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 straight pull trigger assembly enables continuous firing in semi-automatic firearms by ensuring the safety is reliably disengaged, reducing the risk of accidental discharge and enhancing operational safety by limiting movement to translational rather than rotational, thus ensuring consistent and controlled firing.
Implementation Method 1
a compression device, both of which may translate in a first direction, limiting movement of the trigger assembly to translational movement in the first direction
Data Source
AI summary
A trigger assembly for providing a straight pull trigger may be provided. The trigger assembly may comprise a trigger shoe, a safety plunger, and a safety blade. The trigger shoe may comprise a trigger shoe cavity disposed between a trigger shoe first side and a trigger shoe second side. The trigger shoe may further comprise a safety plunger pocket. The safety plunger may be disposed in the safety plunger pocket. The safety blade may be slidably disposed in the trigger shoe cavity and be connected to the safety plunger. The safety plunger may retract into the trigger shoe from a safety plunger first position to a safety plunger second position when the safety blade slides in the trigger shoe from a safety blade first position to a safety blade second position.