Striker-Fired Trigger Group with Three-Position Connector
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Solution Overview
Problem
Existing trigger systems for striker-fired firearms that fire one round upon trigger pull and another upon trigger release often suffer from complexities, such as the need for multiple selectors and increased risk of accidental discharges due to the manipulation of these selectors.
Innovation Solution
The development of a trigger group for striker-fired firearms that incorporates a frame, slide, barrel, trigger assembly, and firing pin assembly, with a trigger connector that moves between three positions to control the sear's engagement with the firing pin, preventing a trigger release shot without a prior trigger pull shot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple selectors are added to enable trigger pull and trigger release firing modes, then the firearm can fire one round upon trigger pull and another upon trigger release, but the complexity of the trigger system increases and the risk of accidental discharges increases
Solution Approach 1:
The patent combines the functions of multiple selectors into a single integrated trigger assembly. The trigger connector integrates the disconnector mechanism and selector functions into one component that automatically manages the transition between trigger pull and trigger release modes without requiring separate control elements.
Solution Approach 2:
The trigger connector automatically performs the function of selecting between firing modes based on the sequence of trigger operations. After a trigger pull shot, the connector self-activates to enable trigger release shot capability, eliminating the need for manual selector manipulation by the user.
2Adaptability or versatility
If multiple selectors with two positions each are added to control firing modes, then the firearm can switch between semi-automatic and double fire modes, but the ease of operation decreases due to the need to manipulate selectors within the trigger guard
Solution Approach 1:
The trigger connector automatically detects and responds to trigger pull events, self-activating to enable trigger release shot capability without requiring manual intervention. The system serves itself by automatically transitioning between firing modes based on operational sequence.
Solution Approach 2:
The trigger connector prepares the system in advance by automatically enabling trigger release shot capability immediately after a trigger pull shot occurs, so that the second shot is ready to fire as soon as the trigger is released, without requiring any additional user actions.
3Productivity
If the trigger system allows trigger release shots without requiring a prior trigger pull shot, then the firing speed increases, but the risk of accidental discharges increases
Solution Approach 1:
The trigger connector performs a preliminary action by automatically enabling trigger release shot capability only after detecting that a trigger pull shot has already occurred. This preliminary conditioning ensures that the high-speed trigger release firing path is activated only when appropriate, maintaining safety while enabling rapid follow-up shots.
Solution Approach 2:
The trigger connector provides feedback-based control by monitoring the sequence of trigger operations and automatically adjusting the system state. After detecting a trigger pull event, the connector feeds back to enable the trigger release mode, creating a controlled progression that prevents accidental activation while maintaining firing speed.
4Reliability
If the trigger connector is designed to move between three positions to control sear engagement, then the reliability of preventing accidental discharges improves, but the device complexity increases
Solution Approach 1:
The trigger connector merges multiple control functions into a single integrated component that manages sear engagement, disconnector positioning, and firing mode selection. By combining these functions into one part with three positions, the system achieves reliable control without the complexity of multiple separate selectors and mechanisms.
Data Source
AI summary
Trigger groups for striker-fired firearms have a firing pin assembly connected to a slide and operable to reciprocate between a rearward retracted position and a forward extended position, the firing pin assembly including a retention surface, a trigger assembly including a sear surface configured to selectively engage the retention surface to releasably restrain the firing pin assembly, the firing pin assembly being responsive to the trigger assembly to release from the retracted position to the extended position in response to movement of the trigger assembly from the forward trigger position to the rearward trigger position and to release from the retracted position to the extended position in response to movement of the trigger assembly from the rearward trigger position to the forward trigger position, the trigger assembly including a retainer movable between a clear position and a blocking position.