Tapered Rim Training Round for Unpredictable Firearm Malfunctions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current firearm training methods rely on preset malfunctions, which can lead to predictable clearance procedures, whereas real-life scenarios often involve unpredictable secondary malfunctions that require immediate and random corrective actions.
Innovation Solution
A training round with a tapered rim and inert primer, designed to cause secondary malfunctions by preventing successful extraction, allowing for unpredictable ejection and jamming scenarios in live-fire training, enhancing the realism and effectiveness of training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If preset malfunction training is used, then trainees can practice clearance procedures, but the training becomes predictable and less effective
Solution Approach 1:
The training round incorporates a tapered rim design that is prepared in advance to cause secondary malfunction during live-fire training. The geometric modification is pre-configured to interact with the extractor in a predictable manner that induces malfunction, allowing trainers to introduce unpredictable malfunctions into training scenarios without requiring preset conditions.
Solution Approach 2:
The rim geometry is modified by tapering it toward the primer, changing the physical parameters of the cartridge case. This geometric parameter change causes the rim to interact differently with the extractor, specifically preventing proper engagement and causing secondary malfunction. The parameter change transforms a standard training round into one that reliably induces the desired malfunction condition.
2Reliability
If training rounds with modified rims are used, then secondary malfunction can be induced, but the rim geometry must be precisely controlled
Solution Approach 1:
The rim is tapered toward the primer with specific geometric parameters that control the malfunction induction. The taper angle and extent are designed to be sufficient to prevent extractor engagement while remaining within manufacturable tolerances. This parameter optimization ensures reliable malfunction induction without requiring excessive manufacturing precision.
Solution Approach 2:
The rim geometry is made asymmetric by tapering it toward the primer rather than maintaining a uniform cylindrical shape. This asymmetric geometry creates a specific interaction pattern with the extractor that reliably causes secondary malfunction. The asymmetry is designed to be robust against manufacturing variations, ensuring consistent malfunction induction.
Data Source
AI summary
A device and method for producing a secondary malfunction of a cartridge extracted from a firearm. A cartridge case has a bullet disposed in a front end and a rim formed at a rear end. The rim is tapered toward a primer, wherein the primer is disposed in the center of the rim. The tapered rim prevents a firearm from successfully extracting the cartridge case, i.e. a secondary malfunction occurs.