Buffer Assembly Counterweight Spring Delay
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Solution Overview
Problem
Existing buffer assemblies for automatic and semi-automatic firearms do not effectively address the need for a tunable, weather-resistant, and long-lasting solution that can be easily adjusted for varying shooting conditions, ammunition types, and shooter preferences, while also smoothing recoil and delaying firing cycles.
Innovation Solution
A buffer assembly comprising a rod with a cap, a shock-absorbing plug, a buffer tube, a counterweight, and springs that work together to delay the firing cycle and smooth recoil, allowing for easy adjustment and tuning through interchangeable components such as counterweights and springs with varying weights and compression forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydraulic seal is used in the buffer assembly, then the buffer assembly can maintain fluid pressure and provide consistent damping, but any leak of the seal would compromise the performance and reliability of the buffer assembly
Solution Approach 1:
The patent replaces the hydraulic sealing system with a purely mechanical spring-based damping system. The buffer assembly uses compression springs to provide resistance to bolt carrier movement, eliminating the need for hydraulic seals and fluid pressure containment. This mechanical substitution removes the vulnerability to seal leaks while maintaining the essential function of controlling recoil and managing energy dissipation through a more robust and maintenance-free mechanism.
2Adaptability or versatility
If a complex buffer assembly with multiple components is used to fine-tune for different conditions, then the adaptability to various shooting conditions improves, but the device complexity increases
Solution Approach 1:
The buffer assembly is divided into modular components including the buffer tube, buffer spring, counterweight, and various retainers that can be independently selected and assembled. This segmentation allows users to fine-tune the system for different shooting conditions by swapping specific components (such as different weight counterweights or spring rates) without redesigning the entire assembly, thereby achieving high adaptability while keeping individual component complexity low.
Solution Approach 2:
The buffer assembly design incorporates universal interfaces and standardized component dimensions that allow the same basic structure to accommodate multiple configurations. The buffer tube, for example, serves as a universal housing that can contain different spring assemblies, counterweights, and damping elements, enabling one platform to handle various shooting conditions through component variation rather than requiring entirely different buffer designs.
3Object-generated harmful factors
If a heavy counterweight is used to smooth recoil, then the recoil smoothing improves, but the weight of the moving parts increases
Solution Approach 1:
The buffer assembly incorporates a dedicated counterweight component that is specifically designed to offset the rearward impulse of recoil by moving in the opposite direction. This counterweight is integrated into the buffer system and works in conjunction with springs and dampers to smooth out the recoil impulse transmitted to the shooter. The counterweight's mass is carefully selected to provide optimal recoil mitigation while considering the overall weight constraints of the firearm system.
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 buffer assembly effectively delays the firing cycle and smooths recoil, enabling fine-tuning for different conditions and preferences, improving the performance of firearms across various weather conditions and ammunition types, and allowing for quick adjustments to achieve desired recoil characteristics.
Implementation Method 1
a buffer spring engaged between the plug and the buffer tube for biasing the buffer tube toward its forward position; a counterweight spring that is weaker than the buffer spring, for biasing the counterweight toward the cap
Implementation Method 2
a shock absorbing plug attached to a rearward end of the rod for engaging an end wall of a receiver extension during an intermediate part of the firing cycle; a shock absorbing washer between the counterweight and the cap for smoothing an impact between the counterweight and the cap
Implementation Method 3
a counterweight mounted for movement on the rod, between a rearward position toward the buffer tube and a forward position toward the cap, for delaying the firing cycle
Data Source
AI summary
A buffer assembly has a rod, a cap having a forward end against which a bolt carrier pushes during a firing cycle, the cap being movable along the rod, a shock absorbing plug attached to a rearward end of the rod for engaging an end wall of a receiver extension during an intermediate part of the firing cycle, a buffer tube moveable on the rod, a buffer spring engaged between the plug and the buffer tube for biasing the buffer tube toward a forward position, a counterweight mounted for movement on the rod, a shock absorbing washer between the counterweight and the cap for smoothing an impact between the counterweight and the cap at an end of the firing cycle, and a counterweight spring that is weaker than the buffer spring, for biasing the counterweight toward the cap.