Removable Hand Guard with Floating Barrel Mount
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Solution Overview
Problem
Conventional firearms lack versatility, robust construction, and ease of maintenance, particularly in harsh conditions, due to issues like gas chamber fowling that leads to firearm stoppages.
Innovation Solution
A semi-automatic or automatic rifle design featuring a removable hand guard system with independent pieces that float relative to the barrel, utilizing a locking collar and indirect gas operating system with a movable piston, allowing for easy maintenance and accessory mounting without direct barrel securing, and incorporating features like vent holes and heat shields for cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the hand guard is made removable and segmented into multiple pieces, then ease of maintenance and versatility are improved, but device complexity increases
Solution Approach 1:
The hand guard is divided into multiple separable sections (e.g., forend, handguard, stock) that can be independently removed and reconfigured. This segmentation allows operators to access different parts of the firearm for maintenance without disassembling the entire weapon system, directly improving ease of repair while managing complexity through modular design.
Solution Approach 2:
The hand guard system incorporates dynamic mounting mechanisms that allow the hand guard pieces to be quickly attached and detached from the receiver. This dynamic capability enables rapid reconfiguration for different operational conditions and facilitates easy maintenance by allowing removal of only the necessary components.
2Adaptability or versatility
If the hand guard pieces are independently connected to the receiver, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The hand guard pieces are designed with universal mounting interfaces that can accommodate different configurations and accessory attachments. The same basic hand guard sections can be adapted to work with various receiver types and accessory systems, improving versatility while reducing the need for custom-manufactured parts with extremely tight tolerances.
Solution Approach 2:
Mounting interfaces and transition pieces serve as intermediaries between the hand guard sections and the receiver. These intermediary components provide standardized connection points that simplify the manufacturing requirements of the hand guard pieces themselves while maintaining precise alignment and adaptability across different configurations.
3Ease of operation
If the hand guard floats relative to the barrel, then ease of operation is improved, but reliability may worsen due to potential misalignment
Solution Approach 1:
The hand guard is designed to float relative to the barrel, allowing it to move independently as the barrel heats and expands during firing. This dynamic floating capability prevents stress buildup and potential misalignment that would occur with a rigidly fixed hand guard, thereby maintaining reliability while improving ease of operation and reducing the risk of operational interference.
Data Source
AI summary
A semi-automatic or automatic rifle is provided. The rifle having: an upper hand guard and a lower hand guard each removably secured to an upper receiver of the rifle, wherein the upper hand guard has an integral upper rail that extends along an upper surface of the upper hand guard and the upper hand guard has a rear tab that is received within a mating slot of the upper receiver when the upper hand guard is secured to the upper receiver and wherein the upper rail of the upper hand guard is contiguous with a receiver rail when the upper hand guard is secured to the upper receiver; a cap configured to releasably engage a forward end of the upper hand guard and a forward end of the lower hand guard; and wherein the upper hand guard and the lower hand guard are not directly secured to a barrel of the rifle such that the upper hand guard and the lower hand guard float in position relative to the barrel of the rifle.