Firearm Support Unit Resolving Breech Barrel Bending
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Solution Overview
Problem
The existing fastening and storage methods for the closure unit and run of small-caliber firearms often result in bending and vibrations during shots, reducing accuracy.
Innovation Solution
A firearm design featuring a shaft with a first storage unit that includes a first bearing element at the rear end of the closure unit and a second bearing element on the shaft section, along with a second storage unit for the run, which provides a resilient and reliable fastening system using complementary three-dimensional elements and damping material to minimize bending and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the closure unit and run are fastened to the shaft using two screws as in the state of the art, then the closure unit and run can be stored on the shaft, but the run swings or bends during a shot which reduces accuracy
Solution Approach 1:
The fastening system is divided into multiple independent bearing elements (first bearing element at the rear end of closure unit, second bearing element on shaft section) that distribute the mechanical load. This segmentation prevents the run from swinging or bending by providing multiple support points, thereby resolving the contradiction between storage reliability and accuracy.
Solution Approach 2:
The patent introduces a third dimension by adding bearing elements that extend in different spatial directions (rear end and shaft section positions). This multi-dimensional arrangement creates a stable triangular support structure that constrains the run against bending and swinging, improving both storage reliability and accuracy simultaneously.
2Manufacturing precision
If a resilient and reliable fastening system with multiple bearing elements is used, then bending and vibrations during shots are reduced, but the device complexity increases
Solution Approach 1:
Multiple bearing elements are merged into a single integrated fastening system that works together as one unit. The first bearing element at the rear end of the closure unit and the second bearing element on the shaft section are designed to function collectively, providing stable support while maintaining a cohesive structure that does not excessively increase device complexity.
Solution Approach 2:
The bearing elements serve multiple functions: they provide mechanical support, reduce vibrations, maintain alignment, and enable reliable storage. This multi-functionality allows the fastening system to achieve high accuracy without requiring additional separate components, thereby controlling device complexity.
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
This design significantly reduces bending and vibrations during shots, enhancing the accuracy of the firearm by providing a secure and tension-free storage and fastening system for the closure unit and run.
Implementation Method 1
damping material to minimize bending and vibrations
Data Source
Figure 1~4
Figure 5~9
Figure 10A~11B
AI summary
Firearm (1), comprising: a first bearing unit (9, 9') for bearing the breech unit (3) on a stock (2) of the firearm (1) with a first bearing element (11, 11') at a rear end (5) or on side walls (67) of the breech unit (3) and a second bearing element (12, 12'); a second bearing unit (18, 18A, 18B, 18C) spaced apart from the breech unit (3) for bearing the barrel (6) with a bearing shell (19) having a cylindrical inner bore (20) in which the barrel (6) can be stored, and a fastening device (21); and a breech unit (3) on whose breech slide (29) at least one movable locking element (30) is provided, which is movable by an adjusting element (34) between a locked position and an unlocked position.