Modular Trigger Control Unit for Cross-Frame Firearm Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current modular systems for pistols are proprietary, limiting the customization of fire control units to specific grip frames and slide assemblies, restricting compatibility and flexibility.
Innovation Solution
A modular trigger control unit that can be removably installed on various grip frames and slide assemblies of different sizes, colors, and calibers, secured by locking mechanisms and pins, allowing identification markings to be visible through grip frame openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If proprietary modular systems are used for pistols, then the trigger control unit is designed to function with specific grip frames and slide assemblies, but compatibility and flexibility are restricted
Solution Approach 1:
The trigger control unit is designed with universal mounting features including a protruding tab that fits into a recess on the beavertail portion, a locking block with slide rails, and physical features that mate with corresponding features on the grip frame. This universal design allows the same trigger control unit to be installed on different grip frames and slide assemblies of various sizes, colors, and calibers, achieving multi-functionality and broad compatibility without requiring proprietary system-specific designs
2Adaptability or versatility
If a modular trigger control unit is designed to fit multiple grip frames and slide assemblies, then customization options increase, but the securing mechanism must accommodate various sizes and configurations
Solution Approach 1:
The securing mechanism is divided into multiple independent components: a protruding tab received in a recess on the beavertail portion, a locking block with slide rails, a pin traversing through the trigger control unit and grip frame, and mating physical features. This segmentation allows each component to perform a specific securing function, providing reliable installation across various grip frame sizes and configurations while maintaining ease of assembly and disassembly
Solution Approach 2:
The slide rails of the locking block have flat walls that extend downward or upward with respect to the grip frame, creating a curved or angled mating surface that accommodates variations in grip frame geometry. This geometric design ensures consistent engagement and secure locking across different grip frame sizes and shapes while maintaining reliability of installation
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A modular trigger control unit Is configured to be removably installed on a grip frame of a firearm and includes a locking block and a pin configured to traverse through both the trigger control unit and the grip frame. The trigger control unit has a protruding tab protruding rearward. The locking block includes slide rails extending forward, with each slide rail of the pair of slide rails having a flat wall extending downward or upward with respect to the grip frame when the trigger control unit is installed on the grip frame. The trigger control unit is secured to the grip frame by: (1) the protruding tab received in a recess on an interior wall of a beavertail portion of the grip frame; (2) the pin; and (3) one or more first physical features on the trigger control unit mating with one or more second physical features on the grip frame.