Ammunition Unloader Wheel and Tooth Mechanism

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Solution Overview

Problem

There is a need for an efficient solution to unload ammunition from a magazine for storage after shooting sessions, as not all ammunition is used and needs to be transferred out of the magazine for storage.

Innovation Solution

A magazine ammunition unloader with a wheel having teeth that push the ammunition into an ejecting conduit, driven by a mechanism, including a handle, and a locking mechanism to secure the magazine, allowing for easy transfer into a storage container.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual unloading of ammunition from magazine is performed, then simplicity of device is maintained, but time consumption and labor effort increase

Engineering Contradiction:
Improveunloading speedVSAvoidunloader mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The unloader device enables the magazine to unload itself through a mechanical feedback mechanism. The wheel rotates automatically as ammunition is pushed through the conduit, and the spring-loaded tooth mechanism self-regulates the ejection process without requiring external manual operation for each round, thereby increasing productivity while keeping the device relatively simple

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A spring-loaded tooth acts as an intermediary between the magazine interior and the ejection conduit. This tooth pushes ammunition rounds through the conduit one at a time while the wheel rotates to advance the tooth, creating a mechanical mediation that enables automated unloading without complex control systems

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If a wheel with tooth mechanism is used to eject ammunition, then unloading efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveunloading efficiencyVSAvoidwheel and tooth mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The unloading function is segmented into discrete components: the wheel for rotation, the spring-loaded tooth for pushing, and the conduit for guidance. This segmentation allows each component to perform its specific function independently, improving efficiency while keeping the overall mechanism manageable and not overly complex

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tooth mechanism operates in a periodic manner, pushing one ammunition round at a time as the wheel rotates. This periodic action creates a rhythmic unloading process that is both efficient and mechanically simple, avoiding the need for continuous complex operation

Inventive Principle:
Principle #19Periodic action

3Ease of operation

If the tooth pushing face is sloped frontward and outward, then ammunition ejection is facilitated, but manufacturing precision requirements increase

Engineering Contradiction:
Improveammunition pushing easeVSAvoidtooth geometry precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The tooth is designed with different local qualities: a sloped frontward and outward pushing face for facilitating ejection, and a rounded junction with the top face for smooth transition. This localized geometric variation optimizes the pushing action while the rounded features reduce sensitivity to manufacturing variations, balancing ease of operation with manufacturability

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11982506B2Magazine ammunition unloader and magazine container for magazine ammunition unloader
Publication Date: 2024.05.14 AMMUNITION MANAGEMENT TECH INC
  • US11982506B2 patent drawing
  • US11982506B2 patent drawing
  • US11982506B2 patent drawing

AI summary

A magazine ammunition unloader may include a body comprising: a magazine loading conduit adapted to receive a magazine containing ammunitions and the ammunitions contained in the magazine; and an ammunition ejecting conduit connected to the magazine loading conduit; and a wheel housed in the body, the wheel comprising a tooth adapted to push one at the time the ammunitions from the magazine into the ammunition ejecting conduit; and driving means adapted to drive the wheel, thereby ejecting one at the time the ammunitions from the magazine.