Linear Firearm Gas Recovery Assisted Ejection
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Solution Overview
Problem
Manual repeating firearms lack the ability to automatically recover energy from fired ammunition for assisted ejection and reloading, limiting their functionality compared to semi-automatic weapons, and face issues with rear locking shunting.
Innovation Solution
A manual repeating firearm with a gas-operated system that recovers energy from firing to move a movable assembly against a return spring, featuring locking and unlocking mechanisms to facilitate assisted return and prevent rear locking shunting, including a pivoting fork and manually actuable unlocking assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual repeating firearm uses a gas-operated system to recover energy from fired ammunition for assisted ejection, then the ejection and reloading operations are assisted similar to semi-automatic weapons, but the weapon complexity increases due to additional locking and unlocking mechanisms
Solution Approach 1:
The patent combines the gas-operated energy recovery system with the existing manual locking and unlocking mechanisms of the linear repeating firearm. The gas system assists the movable assembly's return motion while the manual unlocking assembly (articulated rod with actuating finger) releases the locking means (pivoting fork), merging automated energy recovery with manual control to achieve assisted ejection without full automation
Solution Approach 2:
The unlocking assembly acts as an intermediary between the user's manual input and the gas-operated system. The articulated rod with actuating finger cooperates with the locking means to enable controlled release, mediating between manual operation and automated gas-assisted motion to prevent shunting while allowing assisted ejection
2Reliability
If a manual repeating firearm implements locking means to prevent rear locking shunting, then the reliability improves, but the ease of operation deteriorates due to required manual intervention after each shot
Solution Approach 1:
The locking means (pivoting fork) is designed to automatically engage and lock the movable assembly in the rear position after each shot, preventing shunting before it can occur. This preliminary locking action ensures reliability by blocking unauthorized or accidental movement of the assembly during the powered return phase
Solution Approach 2:
The gas-operated system performs self-service by automatically driving the movable assembly forward after the user manually releases the locking means. The recovered gas pressure energy autonomously completes the ejection and reloading cycle without requiring continuous manual intervention, balancing reliability with operational efficiency
3Reliability
If the unlocking assembly cooperates with a part to neutralize the weapon percussion system by disengaging the trigger, then the safety improves by preventing shunting, but the device complexity increases
Solution Approach 1:
The unlocking assembly is merged with the percussion system neutralization function. The articulated rod mechanism simultaneously releases the locking means and disengages the trigger, combining two safety functions into a single coordinated action that prevents shunting while maintaining system reliability
Solution Approach 2:
The unlocking assembly performs preliminary neutralization of the percussion system before allowing the movable assembly to return. By disengaging the trigger in advance during the unlocking sequence, the system prevents any possibility of accidental discharge during the assisted return motion
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 assisted ejection and reloading similar to semi-automatic weapons while maintaining the characteristics of a repeating firearm, ensuring a large magazine capacity and preventing rear locking shunting through manual intervention after each shot.
Implementation Method 1
means capable of recovering the energy resulting from the pressure exerted when firing a round of ammunition, by a gas operated system, to move a movable assembly against a return spring
Data Source
AI summary
A linear repeating firearm, with assisted ejection, including: a mechanism capable of recovering the energy resulting from pressure exerted when firing a round of ammunition by a gas operated system, to move a mobile assembly against return spring and including a stopper, a latch and a striker cooperating with a hammer controlled by a trigger. A locking mechanism is provided at the rear of the mobile assembly, to lock the mobile assembly in the compressed position of the return spring, after each shot. A manually actuatable unlocking assembly is capable of acting on the locking mechanism to release the mobile assembly and allow the assisted return of the assembly for reloading.