Minigun Safing Blade Assembly Integration
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Solution Overview
Problem
The existing top cover and safing sector assembly for 7.62 miniguns requires operators to open the top cover and remove the safing sector to safe the gun, making it time-consuming and inconvenient, especially in combat or training environments, and poses a risk of damaging bolt assemblies if barrels are rotated electrically with the safing sector open.
Innovation Solution
A one-piece top cover and safing blade assembly that allows safing without opening the top cover, incorporating a safing blade that can be rotated to an open position to disable the gun, allowing electrical rotation of the barrels without firing, and featuring a latching mechanism to secure the blade in place, thereby preventing accidental firing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the top cover and safing sector are separated into two pieces allowing independent operation, then the top cover can be opened for quick access to inner workings, but the safing process becomes time-consuming requiring both cover opening and sector removal
Solution Approach 1:
The patent combines the top cover and safing sector into a single integrated assembly where the safing blade is attached to the top cover. This merging eliminates the need to separately remove the safing sector after opening the cover, reducing the safing process to simply opening the top cover, thereby resolving the time-loss contradiction while maintaining quick access capability
2Reliability
If the safing sector is partially or completely removed to disable the gun, then the minigun cannot fire, but the operator risks damaging bolt assemblies if barrels are rotated electrically with the safing sector open
Solution Approach 1:
The integrated safing blade acts as an intermediary mechanism that provides visual and mechanical indication of the safe condition. When the blade is in its open position, it physically blocks the firing mechanism while also serving as a clear indicator to operators that the gun is safe, eliminating the need to monitor the complex interaction between safing sector position and barrel rotation electrical interlocks
3Adaptability or versatility
If the top cover and safing sector are designed as separate components with semi-permanent retention, then the top cover can pivot independently, but the safing process requires multiple discrete steps increasing operational complexity
Solution Approach 1:
By integrating the safing blade with the top cover into a single assembly, the patent reduces the number of discrete components and steps required for safing. The combined assembly maintains the versatility of independent top cover operation while simplifying the safing process to a single action of opening the cover, thereby reducing operational complexity
Data Source
AI summary
A top cover and safing blade assembly replaces the prior art top cover and safing sector in 7.62 miniguns. The top cover and aft camming portion of a longitudinal helical track are combined in a single unit, thus permitting the forward camming portion of the helical track, incorporated in the safing blade, to be removed separately. Safing the gun by opening the safing blade and rearming it by closing the safing blade can be accomplished in far less time than is required in prior art safing systems. Live cartridges can be quickly cleared from the minigun by electrically rotating the barrels after the safing blade has been locked in its open position.