Firearm Foregrip Dovetail Rail Locking Mechanism
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Solution Overview
Problem
Existing firearm front grips often slip along the mounting rail due to lack of secure locking and are uncomfortable to grip, affecting shooting stability.
Innovation Solution
A foregrip design featuring a mounting rail engaging member with a dovetail track and a bar clamp that securely engages with the firearm's dovetail rail, combined with a gripping member and lower sealing member for stable and comfortable grip, allowing for easy positioning and secure attachment along the rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple downwardly extending rectangular front grip is used, then the device complexity is reduced, but the grip stability and comfort are worsened
Solution Approach 1:
The front grip is divided into multiple functional segments: a mounting portion with dovetail track for rail engagement, a gripping portion with ergonomic contours for hand comfort, and a bar clamp mechanism for secure locking. This segmentation allows each part to optimize its specific function while maintaining overall stability.
Solution Approach 2:
The grip incorporates a movable bar clamp that can be adjusted along the longitudinal axis to engage with different positions on the mounting rail, allowing dynamic positioning and secure locking at any desired location while maintaining grip stability.
2Ease of manufacture
If a prior art front grip is used, then the manufacturing is simplified, but the grip slips along the mounting rail affecting shooting stability
Solution Approach 1:
The mounting interface uses an asymmetric dovetail track geometry that provides inherent anti-slip characteristics. The angled surfaces of the dovetail engagement create mechanical interlocking that prevents longitudinal slippage while maintaining ease of assembly through a single-direction insertion motion.
Solution Approach 2:
The bar clamp acts as an intermediary locking element that bridges the gripping portion and the mounting rail. It engages with both the dovetail track and the rail slots, providing positive mechanical locking that prevents slippage while allowing simple manual operation.
3Device complexity
If a prior art front grip is used, then the structure is simplified, but it is difficult to grip comfortably affecting shooting stability
Solution Approach 1:
The gripping portion features locally optimized ergonomic contours with rounded edges and contoured surfaces specifically shaped to fit the natural curvature of the hand. This local quality enhancement provides comfortable grip without requiring complex overall restructuring of the device.
Data Source
AI summary
A foregrip for use with a firearm having a handguard extending along the barrel and a mounting rail, with transverse spaced apart slots, extending longitudinally along a lower surface of the handguard parallel with the barrel and including slots spaced there along. The foregrip including a member formed to engage the mounting rail and slide longitudinally there along. The member includes a transverse slot formed through an upwardly directed surface thereof. A gripping member has an upper end formed to engage the mounting rail engaging member. A bar clamp carried by the gripping member is positioned to slide into the slot in the mounting rail engaging member and extend into engagement with a slot in the mounting rail, whereby the foregrip is positioned at a selected position longitudinally along the mounting rail.