Handgun Barrel End Face Geometry for Recoil Simulation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current handgun training systems for small caliber cartridges are costly and prone to precision losses and safety risks, as they require additional parts and complex setups to mimic the firing behavior of larger caliber weapons, leading to reduced accuracy and increased risk of malfunction.

Innovation Solution

A barrel design with a larger end face relative to the cross-sectional surface, allowing for efficient pressure management and recoil simulation without additional parts, combined with a carrier sleeve and detachable ramp block for enhanced safety and precision, enabling the use of small caliber cartridges in self-loading pistols without compromising performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a barrel with a larger end face relative to the cross-sectional surface is used, then pressure management and recoil simulation are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvefunctional reliabilityVSAvoidbarrel structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by modifying the geometric ratio between the end face area and the cross-sectional surface area formed by the third diameter to be at least 1.5 times larger. This parameter optimization enables effective pressure management and recoil simulation without requiring additional complex components, resolving the contradiction between reliability improvement and manufacturing complexity.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If additional parts are added to mimic firing behavior of larger caliber weapons, then training effectiveness is improved, but the risk of mix-ups and malfunction increases

Engineering Contradiction:
Improvetraining adaptabilityVSAvoidoperational reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements universality by designing a barrel configuration that can handle both small caliber training cartridges and simulate the firing behavior of larger caliber weapons through its geometric parameters. The specific end face to cross-sectional surface area ratio enables the same barrel structure to serve multiple functions without requiring additional parts, thereby maintaining operational reliability while achieving training adaptability.

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

3Reliability

If a carrier sleeve with specific geometric adaptation is used, then safety and precision are improved, but the device complexity increases

Engineering Contradiction:
Improvesafety and precisionVSAvoidcarrier sleeve complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by adapting the external geometry of the carrier sleeve specifically to match the cartridge chamber dimensions, with the sleeve opening end face designed with the specific area relationship to the third diameter. This localized geometric adaptation ensures safety and precision for cartridge retention and ejection without requiring complex mechanisms throughout the entire device.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12066264B2Barrel and exchange system for a handgun, method for operating a handgun, and carrier sleeve for a barrel and/or exchange system for a handgun
Publication Date: 2024.08.20 SCHMEISSER GMBH
  • US12066264B2 patent drawing
  • US12066264B2 patent drawing
  • US12066264B2 patent drawing

AI summary

A barrel for a handgun includes an imaginary barrel bore axis along which it extends in the x-direction, around which barrel axis the following are formed in the interior of the barrel, in succession from a rear end to a front end: a cartridge chamber, which has a first diameter; a cartridge chamber opening, which has a second diameter; a conical transition, which transitions from the second diameter to a third diameter, which is associated with the guide region; and a barrel opening, an end face being formed around the cartridge chamber opening, and the barrel being suitable for a bullet driven by hot gases to accelerate therethrough. The end face is at least 1.5 times larger than the cross-sectional surface formed by the third diameter.