Handguard Sleeve Locking Wedge Assembly for Lightweight Firearm Mounting
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Solution Overview
Problem
Existing handguards for firearms are often heavy, cumbersome, and require complex installation processes, which can lead to installation bias and potential detachment issues.
Innovation Solution
A lightweight handguard assembly system utilizing a barrel nut with an annular groove, an adapter with wedge pockets, and locking wedges that form a secure mechanical lock, allowing for easy and durable attachment to the firearm without relying solely on compression force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional handguards are used, then the handguard provides adequate protection and mounting capability, but the handguard adds excessive weight to the firearm
Solution Approach 1:
The handguard assembly is divided into separate components: a lightweight handguard sleeve and a barrel nut attachment mechanism. This segmentation allows the handguard to be made from lighter materials while maintaining attachment reliability through a dedicated mounting system.
Solution Approach 2:
The handguard sleeve is constructed from composite materials or lightweight alloys that reduce weight while maintaining structural integrity. The combination of lightweight materials with a robust attachment mechanism resolves the contradiction between weight reduction and attachment reliability.
2Ease of manufacture
If complex installation processes are used, then the handguard can be securely attached, but the installation requires precision and may result in installation bias
Solution Approach 1:
The barrel nut and handguard sleeve are designed with self-aligning features that guide proper positioning during installation. The complementary curved surfaces automatically orient the components correctly, eliminating the need for precise manual alignment and reducing installation bias.
Solution Approach 2:
Instead of requiring precise alignment of the handguard onto the barrel, the design inverts the approach by having the barrel nut with curved surfaces that actively guide and orient the handguard sleeve into the correct position, making installation more forgiving and easier.
3Device complexity
If compression force alone is used for attachment, then the design is simple, but the attachment may detach under sustained force
Solution Approach 1:
The barrel nut incorporates curved or annular grooves that engage with corresponding features on the handguard sleeve. This curved geometry creates a mechanical interlock that resists detachment forces more effectively than simple compression, while adding minimal complexity to the overall design.
Solution Approach 2:
The attachment mechanism transitions from one-dimensional compression force to two-dimensional or three-dimensional mechanical engagement through curved surfaces and grooves. This dimensional change allows the attachment to withstand sustained forces without detachment while maintaining relatively simple construction.
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
The system provides a lightweight, rigid, and easily installable handguard assembly that secures firmly to the firearm, eliminating installation bias and ensuring long-term stability.
Implementation Method 1
the upper section bears an upper surface that includes a concavely curving surface and a center-placed tab extending from the upper surface, the tab being dimensioned to be insertable into the annular groove of the barrel nut and the concavely curving surface having a slope substantially the same as the slope of the convexly curving outer surface of the barrel nut so that when the tab is inserted into the annular groove of the barrel nut the concavely curving surface is positioned concentrically adjacent to the convexly curving outer surface of the barrel nut
Data Source
AI summary
The invention as described herein includes a handguard assembly for attachment to an upper receiver of a firearm. It includes a barrel nut that extends from a first end to second end and has a convexly curving outer surface that defines an annular groove extending around at least a portion of the circumference of the barrel nut. An adapter is structured to be capable of mechanical attachment to the handguard sleeve at the handguard sleeve's first end and had a first end that has an internal diameter that is dimensioned so that the second end of the barrel nut is insertable into the first end, and it further includes an adapter body comprising a wall having an outer surface and at least one wedge pocket is disposed on the outer surface of the adapter body wall. Included also is at least one locking wedge with an upper section dimensioned to be insertable into and through the aperture of the upper portion of the wedge pocket and a lower section dimensioned to be biased into the slot of the lower portion of the wedge pocket.