Adjustable Firearm Stock With Latch and Threaded Rod Mechanism

The patent applies the dynamics principle by transforming the static, fixed comb and length of pull into adjustable, dynamic components. The comb is made movable along the longitudinal axis of the stock through a rod and latch mechanism, allowing it to be repositioned to different heights. Similarly, the length of pull is made adjustable through a threaded rod mechanism that moves the recoil pad along the longitudinal axis. This dynamic design enables the firearm to adapt to different shooters' physiques while maintaining a relatively simple overall structure.

The patent applies segmentation by dividing the stock into modular components with independent adjustment capabilities. The comb is separated as an independent adjustable element that can move relative to the stock body. The length of pull is segmented into adjustable sections through the threaded rod mechanism. This segmentation allows each component to be independently adjusted without affecting the entire stock structure, achieving customizability while controlling complexity.

The patent replaces complex mechanical adjustment systems with simpler mechanisms. Instead of using multiple screws, springs, or cam-based systems commonly found in adjustable stocks, the invention uses a straightforward rod and latch mechanism. The rod provides the adjustment range, while the simple latch component (a spring-loaded ball detent system) provides secure positioning at desired heights. This mechanical substitution achieves precise comb height adjustment with minimal structural complexity.

The patent extracts the adjustment function from the main stock structure by using a separate, dedicated rod and latch mechanism. The comb adjustment system is taken out as an independent subsystem that interfaces with the stock body through a simple opening and chamber. This extraction allows the adjustment precision to be optimized independently without complicating the overall stock manufacturing and structure.

The patent applies self-service through the spring-loaded ball detent mechanism in the latch system. When the rod is moved to a desired position, the spring automatically pushes the ball into engagement with the rod's surface, securing the position without requiring additional locking actions from the user. This self-latching mechanism provides reliable positioning while maintaining ease of operation, as the user simply needs to overcome the spring force temporarily to adjust and then release to lock.

The length of pull adjustment mechanism uses dynamic elements including a threaded rod that converts rotational motion into linear displacement, and a spring-loaded latch that dynamically responds to position changes. The threaded rod allows smooth, controlled adjustment through threading engagement, while the spring-loaded ball provides dynamic locking that automatically engages and disengages based on rod position. This dynamic design achieves both ease of operation and reliability.