Magazine Catch Safety Trigger Lock Mechanism
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Solution Overview
Problem
Existing semi-automatic handguns lack a reliable and simple safety feature that prevents discharge when the magazine is removed, posing a risk of accidental firing.
Innovation Solution
A magazine catch safety mechanism that includes a catch body, securement pin, spring, and trigger bow notch, which locks the trigger when the magazine is removed, ensuring the firearm cannot be discharged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magazine disconnect safety feature is added to prevent discharge when magazine is removed, then firearm safety is improved, but device complexity increases
Solution Approach 1:
The magazine catch and trigger safety are merged into a single integrated mechanism. The catch body serves dual functions: securing the magazine in place and controlling trigger movement. When the magazine is removed, the same catch body automatically blocks the trigger, eliminating the need for a separate safety device and reducing overall system complexity.
Solution Approach 2:
The catch body is designed as a multi-functional component that performs both magazine retention and trigger safety functions. This universal component interacts with the magazine during insertion and simultaneously controls trigger movement, allowing one element to fulfill multiple safety and operational roles within the firearm system.
2Reliability
If a magazine catch safety mechanism is implemented, then accidental discharge prevention is improved, but manufacturing cost increases
Solution Approach 1:
By combining the magazine catch and trigger safety into one integrated mechanism, the number of parts that need to be manufactured, assembled, and quality-checked is reduced. The single catch body design eliminates the need for separate safety components, simplifying manufacturing processes and reducing production costs while maintaining reliable accidental discharge prevention.
Solution Approach 2:
The multi-functional catch body reduces overall part count and assembly complexity. Instead of manufacturing and assembling multiple separate components (magazine catch plus separate safety mechanism), the universal catch body design requires fewer manufacturing operations and assembly steps, thereby reducing manufacturing costs while achieving both magazine retention and trigger safety functions.
3Reliability
If the trigger is locked when magazine is removed, then safety is improved, but ease of operation decreases
Solution Approach 1:
The mechanism proactively prevents unwanted trigger movement by automatically blocking the trigger when the magazine is removed. This preliminary safety action occurs before any accidental discharge could occur, using the absence of the magazine itself as the trigger (pun intended) for the safety lock, thereby eliminating the need for user intervention to engage safety.
Solution Approach 2:
The safety mechanism is self-activating based on the magazine's presence or absence. The system automatically detects when the magazine is removed and engages the trigger lock without requiring the user to manually activate a safety feature. This self-service approach maintains ease of operation by eliminating additional user actions while still providing reliable safety protection.
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 magazine catch safety effectively prevents accidental discharge by locking the trigger when the magazine is removed, providing a reliable and inexpensive solution for ensuring firearm safety.
Implementation Method 1
a spring, wherein the spring has a first end disposed against the catch body at the spring receiving end of the catch body, and a second end disposed against the second spring receiving end of the securement pin
Data Source
AI summary
A magazine catch safety for a firearm to lock a trigger of a firearm when a magazine is removed from a magazine receptacle of a frame of a firearm, the magazine catch safety having a catch body having a longitudinal axis, an actuating button end, and a spring receiving end, and a protuberance disposed on the catch body. The magazine catch safety further having a securement pin, a spring, and a trigger bow. The trigger bow has a notch, wherein, when the catch body is in a first position, the protuberance is engaged in the notch to prevent movement of the trigger bow, and wherein when the catch body is in a second position, the protuberance of the catch body does not engage the notch, providing for free movement of the trigger bow.