Firearm Chassis With Integrated Vertical Rails And Standardized Screws
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Solution Overview
Problem
Existing firearms face challenges in assembly due to varying fastener lengths and limited accessory attachment options, requiring numerous different fasteners and restricting the types and orientations of components that can be mounted on traditional rail systems.
Innovation Solution
A firearm chassis with integrated mounting rails, including vertical and horizontal Picatinny, Weaver, or ARCA Swiss style rails, and standardized action screw apertures, allowing for modular configuration and the use of identical action screws, facilitating the attachment of various accessories and components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional sloped stocks are used to connect the barrel action, then the stock can be assembled with the barreled action, but multiple different sized fasteners are required and assembly becomes complex
Solution Approach 1:
The patent applies universality by designing the chassis with standardized mounting surfaces and threaded holes that accept a single type of fastener for multiple attachment locations. The chassis body includes a forend portion with a forward action screw threaded hole and a stock portion with a rearward action screw threaded hole, both designed to accommodate the same fastener type, eliminating the need for multiple different sized fasteners while maintaining assembly simplicity.
2Adaptability or versatility
If horizontal rails are used on the handguard or upper receiver, then components can be attached, but the types and orientations of mountable components are limited
Solution Approach 1:
The patent applies dimensionality change by transitioning from traditional horizontal rails to vertical mounting rails. The first vertical mounting rail is located at the front end of the chassis body and the second vertical mounting rail is located at the rear end, extending in the vertical direction rather than horizontally. This dimensional change enables components to be mounted in vertical orientations and expands the variety of attachable components beyond what horizontal rails permit.
3Device complexity
If identical action screws are used for front and rear mounting, then the number of fastener types is reduced, but the chassis geometry must be precisely controlled
Solution Approach 1:
The patent applies local quality by designing the chassis with specific geometric characteristics at the mounting locations. The forend portion has a forward action screw threaded hole positioned at a first distance from the receiver, and the stock portion has a rearward action screw threaded hole positioned at a second distance from the receiver. By carefully controlling these local geometric features during manufacturing, the chassis achieves precise dimensions that allow identical action screws to be used while maintaining proper alignment and fit.
Data Source
AI summary
A firearm chassis comprises a body having a receiver mount for receiving a firearm receiver or barreled action, and one or more mounting rails configured to removably accept one or more firearm features, wherein the mounting rails may comprise integrated Picatinny, Weaver or ARCA Swiss style rails, such as in vertical and/or horizontal orientations at the front and/or rear of the chassis. A firearm chassis may also be uniquely configured to utilize identical front and rear actions screws for attaching the firearm receiver or a barreled action thereto.