Cam-Locking Firearm Accessory Mount for Fast Secure Retention
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Solution Overview
Problem
Existing firearm attachment systems often struggle to balance quick attachment and detachment with secure retention, especially under extreme conditions.
Innovation Solution
A firearm accessory mounting device comprising a nut, collar, and follower system that uses cam tracks to radially engage followers inward upon torque threshold, creating a secure and reliable joint between the muzzle device and accessory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a quick attachment mechanism is used, then attachment speed is improved, but retention reliability deteriorates
Solution Approach 1:
The attachment mechanism transitions from a static connection to a dynamic one where the follower moves radially inward along cam tracks during tightening. This dynamic engagement allows the system to achieve both quick attachment (through rotational movement) and secure retention (through radial clamping force) by converting rotational torque into radial clamping action via the cam mechanism.
Solution Approach 2:
The attachment system is divided into distinct functional components: the nut for threading engagement, the collar for structural support and follower guidance, and the follower for active clamping. This segmentation allows each component to perform its specific function optimally while working together to achieve both quick attachment and reliable retention.
2Reliability
If a permanent attachment mechanism is used, then retention reliability is improved, but attachment speed deteriorates
Solution Approach 1:
The mechanism provides a dynamic tightening process where the follower engages progressively along cam tracks as the nut is tightened. This allows the system to achieve secure retention through the cam-driven radial clamping action while maintaining quick attachment capability through the rotational tightening motion, avoiding the need for time-consuming conventional spring loading procedures.
3Reliability
If conventional spring loading is used, then secure attachment is achieved, but device complexity increases
Solution Approach 1:
The invention extracts and eliminates the conventional spring loading mechanism from the attachment system. Instead of using springs to provide clamping force, the design employs a cam-driven follower that converts rotational torque into radial clamping action, thereby achieving secure attachment without the complexity of spring assemblies, loaders, or additional actuation mechanisms.
Solution Approach 2:
The cam-driven follower system is self-actuating through the tightening rotation itself. As the nut is rotated to tighten the attachment, the cam tracks automatically guide the follower radially inward to engage the clamping action. This self-service mechanism eliminates the need for separate spring loading operations or additional actuation steps, reducing overall device complexity while maintaining attachment security.
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
Facilitates quick and secure attachment/detachment of firearm accessories, ensuring stability under repeated firing conditions without the need for conventional spring loading, enhancing manufacturability and longevity.
Implementation Method 1
The nut can comprise cam tracks that guide the stem of the follower from an unlocked position to a locked position
Implementation Method 2
The firearm accessory mounting device can comprise threaded surfaces that create a joint between the muzzle device and a firearm accessory
Data Source
AI summary
A firearm accessory mounting device is disclosed, comprising a nut, a collar coupled to the nut, and a follower captured between the collar and within a cam track of the nut. When the nut is rotated relative to the collar, threaded engagement secures the nut to the collar. Once the threaded engagement causes a torque threshold to be reached, further rotation of the nut causes the follower to extend radially inward to create a compressive force on a muzzle device and quickly and stably attach the firearm accessory mounting device.