Pivoting Accessory Mount with Cam Locking Mechanism
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Solution Overview
Problem
In the tactical firearm environment, there is a need for a mounting device that allows optical sighting devices to be easily moved between operative and inoperative positions without requiring tools, while securing the device against inadvertent movement and enabling quick re-installation in a calibrated condition for precision firing.
Innovation Solution
A pivoting accessory mount for firearms with a base and top portion, where the top is pivotally attached and capable of limited linear movement, featuring a protrusion for engagement with locking structures to secure the device in either position, and a spring mechanism to assist in locking the device in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an optical sighting device is mounted on a firearm, then the firearm can be used for precision firing, but the sighting device cannot be easily moved to an inoperative position without tools
Solution Approach 1:
The mounting device employs a dynamic quick-release mechanism that allows the optical sighting device to be rapidly moved between operative and inoperative positions. The release button activates a cam mechanism that disengages locking lugs from slots, enabling tool-free removal and reattachment of the sighting device while maintaining secure engagement during use.
Solution Approach 2:
A cam mechanism acts as an intermediary between the release button and the locking lugs. When the release button is pressed, the cam rotates and forces the locking lugs out of engagement with the slots, providing a mechanical advantage that enables quick release without tools. The cam converts rotational motion into linear displacement of the locking elements.
2Ease of operation
If the optical sighting device is moved to inoperative position, then it is out of line of sight, but the device may move inadvertently
Solution Approach 1:
The mounting device maintains dynamic locking engagement through spring-loaded locking lugs that automatically engage with slots on the mounting rail. The springs ensure continuous contact and secure retention of the optical sighting device in both operative and inoperative positions, preventing inadvertent movement while allowing intentional release through the button mechanism.
3Adaptability or versatility
If the optical sighting device is removed and re-installed, then it can be moved between positions, but the calibration is lost requiring re-sighting
Solution Approach 1:
The mounting device preserves the optical sighting device's position and calibration settings through a memory feature. When the device is removed and reattached, the mounting mechanism automatically returns it to its previous calibrated position on the mounting rail, eliminating the need for time-consuming re-sighting procedures while maintaining the ability to move between positions.
4Productivity
If a tool-free release mechanism is provided, then quick movement is enabled, but the mounting device becomes more complex
Solution Approach 1:
The quick-release mechanism uses a cam-based dynamic system where a single button press rotates a cam that forces locking lugs out of engagement slots. This mechanical advantage system provides tool-free release with minimal user input, achieving rapid sight removal and re-installation despite the added structural complexity of the cam and spring components.
Data Source
AI summary
A pivoting mount for a firearm used to attach a firearm accessory is provided. The pivot mount has a base configured to attach to the firearm, and a top pivotally connected to the base. The top of the pivoting mount is pivotable between an engaged and disengaged position.