Machine Gun Optics Mounting via Extraction Principle
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Solution Overview
Problem
Conventional machine guns face issues with inaccurate sighting due to the placement of optics on the feed cover, heat damage to optics from the barrel, limited mobility due to heavy steel construction, and difficulties in maintaining and reloading the ammunition belt, leading to potential firing incidents and reduced firepower.
Innovation Solution
A machine gun design with a side feed corridor and inclined sliding plane, allowing for the use of a Picatinny rail on the top for optics, a heat shield, and a mechanism to maintain and eject the ammunition belt efficiently, including a 45° inclination of the feed passage and non-return pawls to secure the belt during reloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optics are mounted on the feed cover, then sighting capability is provided, but sighting accuracy deteriorates due to misalignment when the cover is opened and closed
Solution Approach 1:
The patent extracts the optics mounting function from the movable feed cover and relocates it to the fixed receiver. This allows the optics to remain stationary and properly aligned regardless of the feed cover's position, resolving the misalignment issue while maintaining adaptability for various optical components.
Solution Approach 2:
The patent transitions from mounting optics on a movable two-dimensional surface (feed cover) to a fixed three-dimensional structure (receiver). This dimensional change provides a stable mounting platform that maintains consistent optical alignment while still allowing versatility through standardized mounting interfaces.
2Adaptability or versatility
If the feed cover is made long to accommodate optics, then optics can be mounted, but the machine gun weight increases and mobility decreases
Solution Approach 1:
The patent extracts the optics mounting function from the feed cover structure, eliminating the need to extend the cover length. This maintains the machine gun's original weight and mobility characteristics while preserving the capability to mount various optical components on the receiver.
3Ease of operation
If the feed cover is opened for reloading, then ammunition can be replenished, but optics are tilted and exposed to heat and pollution
Solution Approach 1:
The patent extracts the optics from the feed cover assembly, separating the reloading function (feed cover) from the optics mounting function (receiver). This allows the feed cover to be opened for reloading without affecting the optics position, preventing heat and pollution exposure while maintaining ease of operation.
4Strength
If steel is used for the carcass construction, then structural strength is sufficient, but weapon weight increases significantly
Solution Approach 1:
The patent employs composite construction for the carcass, combining steel components with polymer materials. This composite approach maintains the necessary structural strength for withstanding firing stresses while significantly reducing the overall weight of the machine gun, improving mobility without compromising strength.
Data Source
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AI summary
The invention relates to a machine gun (1) comprising a feedway having a main surface (3) for sliding an ammunition belt (5), side faces (8, 23) that guide the ammunition (18) belt (5) during use, and at least one surface (25, 29) for retaining the belt (5), arranged on the upper edge of the side faces (8, 23), said retaining surfaces (25, 29) facing the sliding surface (3) and said retaining surfaces (29, 25) being open so as to allow the insertion of the ammunition (18) belt (5).