Semi-Automatic Rifle Barrel Rib for Accessory Mounting
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Solution Overview
Problem
Existing semi-automatic rifles face issues with the integration of weapon accessories, particularly in the region proximal to the barrel end, requiring specific design modifications to accommodate these accessories, which can affect the main body's structure and functionality.
Innovation Solution
A semi-automatic rifle design featuring a main body that does not require mounting weapon accessories in the proximal region, utilizing a barrel group with a rib and guide device that supports accessory mounting, allowing for a polymer main body and easy, rigid attachment of accessories through dovetail coupling or Picatinny type engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the main body is designed with accessory mounting zones proximal to the barrel end, then weapon accessories can be mounted in multiple positions, but the main body structure becomes more complex and manufacturing becomes more difficult
Solution Approach 1:
The patent extracts the accessory mounting function from the main body by introducing a separate guide device that attaches to the barrel group. This allows the main body to remain simple while still providing accessory mounting capability through the detachable guide device that interfaces with the barrel group's rib structure.
Solution Approach 2:
The patent segments the accessory mounting system into separate components: the barrel group with integrated rib, the guide device with mounting interface, and the main body. This segmentation allows each component to be optimized independently, with the main body remaining simple while the barrel group provides the mounting functionality through its rib structure.
2Adaptability or versatility
If the main body is designed with accessory mounting zones, then weapon accessories can be mounted, but the manufacturing precision requirements increase
Solution Approach 1:
The accessory mounting function is extracted from the main body and placed on the barrel group via the guide device. This transfers the manufacturing precision requirements from the main body to the barrel group and guide device assembly, allowing the main body to be manufactured with standard precision while the mounting interface precision is handled by the separate guide device components.
3Ease of manufacture
If the main body is made of polymer material, then weight is reduced and manufacturing is easier, but structural integrity for supporting accessories may be compromised
Solution Approach 1:
The patent segments the support function for accessories from the main body by introducing a metal rib in the barrel group that serves as the primary support structure. The polymer main body remains lightweight and easy to manufacture, while the metal rib provides the necessary structural integrity and mounting strength through the guide device interface.
Solution Approach 2:
The patent employs composite construction by combining polymer material for the main body with metal material for the rib in the barrel group. This allows the main body to benefit from polymer advantages (weight, ease of manufacture) while the metal rib provides the strength and rigidity needed for accessory support and mounting.
Data Source
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AI summary
The invention concerns a semi-automatic rifle (1) comprising a main body (2) and a barrel group (3). The barrel group (3) comprises: - a barrel (4) extending along a barrel axis (X-X) engaged at one end with the main body (2); - a rib (5) extending along said barrel axis (X-X) engaged with the barrel (4) in an upper region; - a guide device (6) for supporting weapon accessories, extending parallel to the barrel axis (X-X), wherein said guide device (6) engages the rib (5) in a region proximal to the main body (2).