Firearm QD Adapter Wedge Mechanism for Secure Attachment
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Solution Overview
Problem
Traditional QD bodies for firearms are large, heavy, and vulnerable to detachment under severe conditions, necessitating a lighter, smaller, and more reliable coupling mechanism for attaching accessories.
Innovation Solution
A wedging adapter design that uses a screw to increase the effective outer diameter of a connection post, allowing for a semi-permanent coupling to a QD socket, preventing unintentional detachment and allowing minimal or no rotation, thus providing a secure and lightweight attachment point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional QD bodies are used for attaching accessories to firearms, then the attachment mechanism is simple and easy to operate, but the QD bodies are large, heavy, and vulnerable to detachment under severe conditions
Solution Approach 1:
The patent changes the physical parameters of the connection post by using a screw mechanism to increase its effective outer diameter. This allows the connection post to transition from a loose fit to a tight, interference-fit connection within the QD socket, thereby improving attachment reliability while maintaining a compact and lightweight design.
2Ease of operation
If traditional QD bodies are used for attaching accessories to firearms, then the attachment mechanism is simple and easy to operate, but the QD bodies are large and heavy
Solution Approach 1:
The screw mechanism allows for easy adjustment of the connection post's effective diameter by simply rotating the screw. This maintains ease of operation while enabling a secure, semi-permanent coupling that is both lightweight and compact, eliminating the need for heavy traditional QD bodies.
3Reliability
If traditional QD bodies are used for attaching accessories to firearms, then the attachment mechanism allows for quick detachment, but the QD bodies are vulnerable to detachment under severe conditions
Solution Approach 1:
The patent uses a screw mechanism to dynamically change the effective outer diameter of the connection post, creating a semi-permanent coupling that resists detachment under severe conditions. While the mechanism is slightly more complex than a simple QD interface, it provides significantly improved reliability without excessive complexity.
4Reliability
If traditional QD bodies are used for attaching accessories to firearms, then the attachment mechanism allows for rotation, but the QD bodies interfere with other equipment in dynamic environments
Solution Approach 1:
By increasing the effective outer diameter of the connection post through the screw mechanism, the patent creates a tight fit within the QD socket that prevents unwanted rotation and interference with other equipment. This maintains attachment stability while allowing for controlled positioning when needed.
Data Source
AI summary
An accessory mounting interface and method are disclosed. The interface has an upper portion having a firearm accessory and at least one through hole extending from a first surface to a second surface of the upper portion, the upper portion having a first post portion with a first side surface and a first flange. A first elongated fastener is arranged through the through hole and has a first end extending below the second surface of the upper portion. The interface also has a second post portion that is movable between a first configuration defining a first transverse distance between the first and second side surfaces and a second configuration defining a second transverse distance between the first and second side surfaces, the first transverse distance greater than the second transverse distance. The first flange substantially opposes the second flange when the second post portion is in the first configuration.