Firearm Stock Assembly with Integrated Pivot and Slide Mechanism
Solution Overview
Problem
Existing variably configurable firearm stock assemblies are unreliable and prone to jamming due to numerous pieces and parts, leading to interference in operation and inadequate durability during repeated use.
Innovation Solution
A pivotable and length adjustable firearm stock assembly with a combined pivoting and latching arrangement, featuring a pivot stock with a slide member and a butt stock that can be locked in various positions, allowing for smooth transition between folded and unfolded positions and collapsed and extended lengths, utilizing a lever with lock structure and detent system for axial adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If previous variably configurable stock assemblies used multiple pieces or parts to achieve folding and sliding configurations, then the stock assembly could change positions, but the reliability deteriorated due to numerous parts causing interference and jamming
Solution Approach 1:
The patent combines the folding mechanism and length adjustment mechanism into a single integrated stock assembly. The pivot stock and butt stock work together as one unit with a unified latching arrangement, eliminating the need for separate folding and sliding mechanisms that would interfere with each other. This merging resolves the contradiction by maintaining adaptability through multiple configurations while improving reliability by reducing the number of interacting parts.
2Adaptability or versatility
If previous stock assemblies had numerous pieces or parts for variably configurable positions, then the stock assembly could be adjusted, but the device complexity increased leading to interference in operation
Solution Approach 1:
The patent divides the stock assembly into two main segments: the pivot stock and the butt stock. Each segment has a specific function, and their interaction through the latching arrangement provides multiple configurations without requiring numerous separate parts. This segmentation reduces device complexity by organizing the components into functional modules that work together efficiently.
3Adaptability or versatility
If previous stock assemblies had multiple components for folding and adjustment, then the stock assembly could change configurations, but the ease of operation deteriorated due to jamming and interference
Solution Approach 1:
The latching arrangement is designed to automatically engage and disengage at specific positions during the folding and extension movement. The spring mechanism provides automatic return to the latched position, eliminating the need for manual intervention to prevent jamming. This self-service mechanism improves ease of operation by allowing smooth configuration changes without requiring the user to manually overcome interference between multiple components.
Data Source
AI summary
A pivotable and length adjustable firearm stock assembly includes a pivot stock having one end provided with a combined pivoting and latching arrangement movable about a horizontal pivot axis and adapted to be pivotally mounted on a rear end of the firearm. An opposite end is provided with a slide member having a lock receiving structure. A butt stock has one end slidably mounted on the slide member, and an opposite end provided with a butt plate pivotally mounted thereto. A movable member is interconnected between the pivot stock and the butt stock for locking the butt stock in various axial adjustment positions relative to the slide member of the pivot stock. The pivot stock and the butt stock together are movable about the horizontal pivot axis between a folded position and an unfolded position, and the butt stock is slidably adjustable relative to the pivot stock between various collapsed and extended positions.