Quick-Disconnect Muzzle Mounting Mechanism for Positive Lock-Up
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Solution Overview
Problem
Existing quick-disconnect mount mechanisms for firearm muzzle devices, such as sound suppressors and blast shields, lack a secure and efficient means of attachment and detachment, often requiring multiple turns or complex locking mechanisms that can be cumbersome and prone to accidental disassembly.
Innovation Solution
A two-stage mounting mechanism featuring radial lugs and a coupling assembly with non-round openings and clamping features, allowing for quick attachment and positive lock-up through partial rotation and threaded clamping, ensuring secure alignment and easy detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard threads with many turns are used to attach sound suppressors, then the attachment is secure, but the attachment and detachment process becomes time-consuming and complex
Solution Approach 1:
The mounting mechanism is divided into two distinct parts: a mount fixture with radial lugs attached to the muzzle, and a coupling assembly with non-round openings that receives the lugs. This segmentation allows the attachment process to be broken into two stages: quick insertion followed by optional clamping, enabling secure attachment while reducing the time and complexity compared to traditional multi-turn threading.
2Productivity
If quick-disconnect mechanisms with minimal turns or lugs are used, then the attachment and detachment speed increases, but the security and reliability of the connection decreases
Solution Approach 1:
The coupling assembly includes a clamping mechanism that can dynamically adjust the clamping force on the radial lugs. The clamp can be engaged to provide a secure, rigid connection when needed, or disengaged to allow quick detachment. This dynamic capability enables the system to transition between secure locked-state and quick-release state, maintaining both connection security and operational speed.
3Reliability
If acme threads with rachet mechanisms are used, then the suppressor is held securely in place, but the mechanism becomes more complex and prone to failure
Solution Approach 1:
The invention extracts the essential retention function from complex threaded rachet mechanisms and implements it through a simpler geometry-based system. The non-round openings in the coupling assembly and corresponding radial lugs on the mount fixture create a mechanical interference fit that provides secure retention without requiring additional rachet teeth, springs, or complex locking components. This geometric locking mechanism is inherently simpler and more reliable.
4Reliability
If lug mounts with spring detents are used, then the suppressor is held in the engaged position, but the mechanism becomes more complex and may fail under high back-pressure
Solution Approach 1:
The coupling assembly features non-round (curved) openings that receive the radial lugs, creating a geometric interlock that resists rotational and axial forces. This curved geometry provides inherent retention without requiring spring detents or other active retaining components. The shape-complementary interface between the non-round openings and radial lugs maintains engagement reliability under high back-pressure conditions while keeping the mechanism simple.
Data Source
AI summary
Provided is a quick-disconnect muzzle mounting mechanism having a mount fixture and a coupling assembly. The mount fixture is fixable to the muzzle end of a firearm barrel and includes a plurality of substantially radial lugs. The coupling assembly is fixable to a muzzle device and includes a first part with a non-round opening adapted to axially receive the lugs of the mount fixture and a second part axially adjustable relative to the first part to clamp the lugs therebetween.