Firearm Fire Control Mechanism for Safer, Smoother Trigger Pull
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Solution Overview
Problem
Conventional fire control mechanisms in firearms often compromise safety or cost-effectiveness to achieve a smoother trigger pull, and introduce complexity or unexpected user interactions.
Innovation Solution
The implementation of a safety bar and sear configuration that transitions between safety configurations, along with a balanced trigger mechanism, reduces friction and allows for customizable trigger pull force, creep, and overtravel, while maintaining safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fire control mechanisms use complex safety designs to ensure safety, then safety is improved, but device complexity increases and manufacturing cost increases
Solution Approach 1:
The patent combines the safety bar and trigger into a single integrated component that performs multiple functions. The safety bar acts as both a safety mechanism and a trigger component, eliminating the need for separate safety and trigger mechanisms. This merging reduces device complexity while maintaining safety functionality through the integrated component's ability to transition between safety and firing configurations.
Solution Approach 2:
The safety bar is designed as a multi-functional component that serves as both a safety mechanism and a trigger. It can engage with the cartridge in different configurations: in the first configuration, it prevents firing by blocking the firing pin; in the second configuration, it allows firing by moving out of the blocking position. This universal design eliminates the need for separate safety and trigger components, reducing overall device complexity.
2Reliability
If conventional fire control mechanisms prioritize safety over trigger smoothness, then safety is improved, but trigger pull smoothness deteriorates
Solution Approach 1:
The safety bar is designed to be dynamic rather than static, allowing it to transition between different configurations during the trigger pull. The safety bar moves from a blocking position to a non-blocking position as the trigger is pulled, enabling the mechanism to adapt its safety level based on the operational phase. This dynamic behavior allows for both safety and smooth trigger operation.
3Reliability
If conventional fire control mechanisms add safety features to ensure reliability, then safety is improved, but manufacturing cost increases
Solution Approach 1:
By merging the safety bar and trigger into a single component, the patent reduces the total number of parts that need to be manufactured, assembled, and quality-checked. This integration simplifies the manufacturing process and reduces assembly steps, leading to lower manufacturing costs while maintaining the safety functionality through the component's multi-configurational design.
4Ease of manufacture
If conventional fire control mechanisms use simple designs to reduce cost, then manufacturing cost is reduced, but safety deteriorates
Solution Approach 1:
The safety bar is designed to change its operational parameters (position, engagement state) based on the trigger configuration. It transitions between a first configuration where it blocks the firing pin and a second configuration where it allows firing. This parameter-based control enables a simple, cost-effective design to achieve reliable safety functionality without complex mechanisms.
Data Source
AI summary
The techniques described herein relate to methods and apparatuses for firearm fire control mechanisms. The firearm includes a safety bar configured to engage with a safety selector and with a trigger and to transition between a first safety configuration and a second safety configuration, and a sear configured to engage with the trigger and to transition between a first sear configuration and a second sear configuration, wherein in the first sear configuration, the sear or trigger is engaged with a hammer to prevent the hammer from being released to fire the firearm, and in the second sear configuration, the sear does not prevent the hammer from being released to fire the firearm.