Plunger Driven Reloading System for Ammunition Magazines

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing magazine reloading systems are cumbersome, require two hands to operate, and are not portable, making them impractical for rapid reloading of ammunition in the field, and often fail to accommodate different sizes and shapes of magazines.

Innovation Solution

A portable reloading system with a storage container holding multiple cartridges in parallel columns, which can be gravity-fed or spring-biased, and a plunger mechanism to quickly transfer cartridges into a magazine, allowing for one-handed operation and compatibility with various magazine sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If prior art magazine reloading systems are used, then reloading capacity is improved, but device complexity and portability deteriorate

Engineering Contradiction:
Improvereloading capacityVSAvoiddevice complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The reloading system is divided into separate functional modules: a storage container for ammunition, a collection chamber for receiving cartridges, and a magazine interface. This segmentation allows each component to be optimized independently while maintaining overall system portability and functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The collection chamber is designed with a universal interface that can accommodate multiple magazine types and configurations. The chamber can receive cartridges from various orientations and transfer them to different magazine styles, making the system versatile without requiring multiple specialized devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Quantity of substance

If prior art magazine reloading systems are used, then reloading capacity is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvereloading capacityVSAvoidease of operation
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The system employs gravity-fed cartridge delivery from the storage container to the collection chamber, eliminating the need for manual manipulation or mechanical feeding mechanisms. The cartridges automatically flow into position, reducing the operator's workload and simplifying the reloading process.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Ammunition is pre-organized in the storage container with cartridges positioned to feed automatically into the collection chamber. This preliminary arrangement eliminates the need for manual sorting or positioning during the reloading operation, allowing for rapid one-handed operation.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If magazine shape and size are matched to reloading chamber, then reloading precision is improved, but adaptability deteriorates

Engineering Contradiction:
Improvereloading precisionVSAvoidadaptability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The collection chamber features a flexible, adaptable interior geometry that can accommodate different magazine shapes and sizes. The chamber design allows for variable cartridge orientations and positioning, enabling precise reloading for each specific magazine type without requiring a dedicated chamber for each configuration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system allows for adjustment of key geometric parameters within the collection chamber, such as opening orientation, chamber depth, and cartridge positioning. These parameter changes enable the same chamber to precisely accommodate various magazine types while maintaining accurate cartridge transfer.

Inventive Principle:
Principle #35Parameter changes

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

Enables rapid and efficient reloading of ammunition magazines in seconds, reducing the need to carry multiple preloaded magazines and accommodating different magazine shapes and sizes, thus enhancing operational safety and convenience for military and law enforcement personnel.

Implementation Method 1

A plunger extends into the collection chamber. The plunger can be selectively advanced to displace the cartridges in the collection chamber out of the magazine port and into the magazine.

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

The collection chamber can be gravity fed with the cartridges from the storage container.

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS10871337B1Plunger driven reloading system for removable ammunition magazines
Publication Date: 2020.12.22 ZHOU JUNSHENG
  • US10871337B1 patent drawing
  • US10871337B1 patent drawing
  • US10871337B1 patent drawing

AI summary

A reloading system and method for reloading cartridges into a removable ammunition magazine of a gun. The reloading system has a storage container for holding a supply of cartridges. A collection chamber is fed from the storage container. The collection chamber has a magazine port for selectively interconnecting with the removable ammunition magazine. A plunger extends into the collection chamber. The plunger can be selectively advanced into the collection chamber to displace the cartridges out of the collection chamber and into the magazine.