Firearm Buttstock Assembly with Metal Guard Element
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Solution Overview
Problem
Polymeric firearm buttstocks lack durability and robustness, particularly when used for alternative purposes such as delivering impact forces, and suffer from wear issues on hard surfaces, while existing solutions fail to enhance strength without increasing weight.
Innovation Solution
A buttstock assembly featuring a base wall with a cushion body and a guard element that projects outwardly, providing enhanced wear resistance and strength through a combination of materials like high-strength polymers and metals, and a secure buttpad assembly that includes a guard element for improved abrasion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If polymeric materials are used for buttstock construction, then weight is reduced and manufacturing cost decreases, but durability and robustness deteriorate
Solution Approach 1:
The patent applies composite materials by combining polymeric buttstock body with metal reinforcement elements (inserts, plates, or coatings) to achieve both weight reduction and enhanced strength. The metal components provide structural reinforcement while the polymeric portions maintain lightweight characteristics, resolving the contradiction between weight and durability.
Solution Approach 2:
The patent implements local quality by strategically placing metal reinforcement elements only in high-stress areas of the buttstock (such as the rear portion near the action and impact zones) rather than throughout the entire structure. This allows the buttstock to have enhanced durability where needed while maintaining overall lightweight properties.
2Weight of moving object
If polymeric buttstocks are used, then weight and cost are optimized, but wear resistance on hard surfaces deteriorates
Solution Approach 1:
The patent uses composite materials by applying metal coatings or attachments to the polymeric buttstock surfaces that contact hard surfaces during firing or alternative uses. This combination provides the wear resistance of metal with the weight advantages of polymer, directly addressing the wear performance issue.
Solution Approach 2:
The patent implements beforehand cushioning by incorporating protective metal layers or coatings on the buttstock exterior surfaces before they are subjected to wear. These protective layers act as a first line of defense against abrasion from hard surfaces, preventing direct contact between the polymeric material and abrasive surfaces.
3Ease of manufacture
If traditional polymeric buttstock construction is used, then manufacturing simplicity is maintained, but ability to withstand impact forces deteriorates
Solution Approach 1:
The patent applies composite materials by integrating metal reinforcement elements into the polymeric buttstock structure. These metal components (such as inserts or plated sections) significantly enhance the buttstock's ability to withstand impact forces from alternative uses while maintaining compatibility with existing manufacturing processes like injection molding.
Solution Approach 2:
The patent implements segmentation by dividing the buttstock into distinct functional zones: polymeric sections for weight reduction and metal reinforcement sections for impact resistance. This segmentation allows each material to be optimized for its specific function while maintaining overall manufacturing efficiency through modular construction approaches.
Data Source
AI summary
A buttpad assembly for use on a firearm includes a base wall, a cushion body and a guard element. A firearm buttstock assembly is also included that has a buttstock body and a buttpad assembly. A method of assembling a firearm buttstock assembly is also included.