Firearm Breech Block Adaptability via Rotating Handle
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Solution Overview
Problem
Existing breech block systems for firearms are not easily adaptable from a right-handed configuration to a left-handed configuration, requiring significant adjustments.
Innovation Solution
A breech block device with a rotating breech bolt handle connected to a tension crown ring and a clamping sleeve, featuring equidistantly disposed tension cam crowns and clamping sleeve cams, allowing for symmetrical movement and adjustment to accommodate both right- and left-handed users by rotating the breech bolt handle through a predefined angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a breech block system is designed for right-handed operation, then it provides reliable functionality for right-handed users, but it cannot be rapidly adapted for left-handed users without significant adjustments
Solution Approach 1:
The breech block system is divided into modular components including a breech bolt handle, tension crown ring, clamping sleeve, and cam mechanisms that can be independently positioned. This segmentation allows the right-handed and left-handed configuration elements to be separately arranged and quickly swapped without redesigning the entire system.
Solution Approach 2:
The patent employs asymmetrical design elements such as right-handed and left-handed cam profiles, mirrored tension crown ring positions, and laterally offset breech bolt handle mounting locations. These asymmetrical features enable distinct right-handed and left-handed configurations that can be rapidly interchanged by swapping the asymmetrical components.
2Ease of manufacture
If traditional breech block systems use fixed asymmetric components, then manufacturing is simplified, but conversion between right-handed and left-handed systems requires extensive modifications
Solution Approach 1:
The patent creates universal components that can serve multiple functions for both right-handed and left-handed configurations. The tension crown ring, clamping sleeve, and cam mechanisms are designed as multi-functional elements that can be positioned or oriented to accommodate either handedness, eliminating the need for completely separate component sets.
Solution Approach 2:
The system incorporates dynamic and adjustable elements including rotatable breech bolt handles, movable clamping sleeves, and interchangeable cam profiles. These dynamic features allow the fixed manufactured components to be repositioned and reconfigured for different handedness requirements without requiring complex manufacturing variations.
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
Enables quick and efficient conversion between right- and left-handed systems with minimal adjustments, ensuring operability for both handedness configurations.
Implementation Method 1
a firing pin (140) capable of being cocked by a tension spring (130)
Implementation Method 2
cam faces for primary extraction by swinging the bolt either clockwise or counter-clockwise
Data Source
AI summary
A cylinder breech block device (100) of a repeating firearm has a breech block cylinder (200) pivoted in a system housing (160) of the repeating firearm for execution of repetitive action thereof and capable of being locked to said system housing (160) for firing a round. A firing pin (140) capable of being cocked by a tension spring is mounted for linear displacement in the direction of a cartridge (141) stored in a magazine (141) of a barrel (143). Cocking of the firing pin (140) is effected by causing rotation, through a predefined angle, of a breech bolt handle (300) rigidly connected to a tension crown ring (400) that is pivoted on a central shaft (210) of the breech block cylinder (200).