Firearm Trigger Guard Projection for Magazine Stabilization

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Solution Overview

Problem

Firearms with detachable magazines often experience malfunctions due to magazine tilt and movement within the magazine well, leading to issues like jams and misfeedings, which can result in damage and improper bullet alignment.

Innovation Solution

A trigger guard with a projection that extends towards the magazine to limit its movement and apply pressure, maintaining a nose-up bullet angle by contacting the rear face of the magazine, thus preventing tilting and ensuring proper cartridge alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the magazine is made detachable for easy reloading, then reloading speed is improved, but magazine stability and alignment within the well deteriorate

Engineering Contradiction:

Improvereloading speedVSAvoidmagazine stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The trigger guard is segmented into a main body and an extended projection portion. The projection extends into the magazine well to provide stabilization without requiring the entire trigger guard assembly to be modified, enabling targeted intervention in the magazine well space.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The extended projection acts as an intermediary element between the trigger guard and the magazine. It provides physical contact and stabilization to the magazine within the well, preventing tilt and movement that would otherwise occur with detachable magazines.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the trigger guard is extended to contact the magazine, then magazine stability is improved, but device complexity increases

Engineering Contradiction:

Improvemagazine stabilityVSAvoidtrigger guard structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The stabilization function is merged into the trigger guard assembly by integrating an extended projection. This combines the protective function of the trigger guard with the stabilizing function, eliminating the need for separate stabilization mechanisms.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The trigger guard with extended projection serves multiple functions: protecting the trigger from accidental discharge and stabilizing the magazine within the well. This multi-functionality reduces the need for additional components and simplifies the overall device architecture.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10571210B2Trigger guard for a firearm comprising a projection

Publication Date: 2020.02.25 AMODIO CHAD

AI summary

A trigger guard for a firearm with a projection extending towards a magazine well of the firearm such that the projection extends into the magazine well. The trigger guard allows the projection to apply pressure to an inserted magazine or to limit the amount of movement of an inserted magazine within the magazine well.