Firearm Magazine Funnel with Tab Screw Securing Mechanism

Solution Overview

Problem

Existing firearm magazine insertion mechanisms lack a secure and efficient method to attach a magazine funnel to the grip of pistols, leading to potential misalignment and instability during ammunition loading.

Innovation Solution

A magazine funnel with a securing mechanism featuring a first and second tab, where the gap between them is expanded by a screw, allowing secure attachment to the pistol grip, ensuring proper alignment and stability during magazine insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a magazine funnel is attached to the pistol grip without a securing mechanism, then the attachment process is simple, but the funnel becomes misaligned and unstable during ammunition loading

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The securing mechanism is divided into separate components: a securing mechanism body with a first tab and second tab, and a screw. This segmentation allows the mechanism to be simple yet effective, providing reliable attachment without excessive complexity. The tabs can be inserted into the grip void separately and then secured together with the screw.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first tab and second tab are pre-formed as integral parts of the magazine funnel structure, positioned and oriented correctly before assembly. This preliminary preparation ensures proper alignment when the tabs are inserted into the grip void, eliminating the need for complex alignment procedures during attachment.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the securing mechanism uses a screw to expand the gap between tabs, then the attachment becomes secure and stable, but the attachment process requires more steps and time

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The first tab and second tab are pre-formed with a gap between them at correct positions on the magazine funnel. This preliminary configuration allows the tabs to be quickly inserted into the grip void without requiring complex assembly, reducing attachment time while maintaining security.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The screw mechanism dynamically adjusts the gap between the first tab and second tab during attachment. By rotating the screw, the gap can be expanded or contracted to securely engage the tabs with the grip void, providing a simple yet effective means to achieve reliable attachment without excessive time investment.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the magazine funnel is designed with protruding tabs for securing, then the attachment to the grip becomes reliable, but the funnel structure becomes more complex

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The first tab and second tab are merged as integral parts of the magazine funnel structure, forming a unified component. This merging eliminates the need for separate attachment pieces, reducing overall structural complexity while maintaining reliable attachment through the tab-screw-grip void connection system.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11473862B2Firearm magazine funnel and securing mechanism thereof
Publication Date: 2022.10.18
  • US11473862B2 patent drawing
  • US11473862B2 patent drawing
  • US11473862B2 patent drawing

AI summary

A device implementable on a firearm includes a magazine funnel and a securing mechanism. The magazine funnel is configured to couple to an opening at a bottom of a grip of the firearm. The magazine funnel has a first side and a second side opposite the first side. The securing mechanism protrudes from the first side of the magazine funnel such that, when a gap related to the securing mechanism is expanded while the magazine funnel is coupled to the opening with the securing mechanism inserted into a void of the grip, the securing mechanism secures the magazine funnel to the grip of the firearm.