Modular Backstrap Assembly for 1911 Handgun
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Solution Overview
Problem
The Model 1911 handgun is complex and difficult to assemble due to its numerous parts, necessitating a simpler and more efficient backstrap assembly solution.
Innovation Solution
A backstrap assembly that is slidably and removably coupled with the handgun's grip, featuring a tongue and groove mechanism, a coupling pin, and a cavity to accommodate the main spring components, allowing for easy installation and compression of the main spring, with additional features to prevent components from dislodging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Model 1911 handgun uses numerous parts for structural completeness, then the firearm achieves reliable functionality, but the assembly process becomes complex and difficult
Solution Approach 1:
The patent combines multiple components into integrated assemblies. The backstrap assembly integrates the backstrap, spring, hammer, and related components into a single removable unit that attaches to the grip. This merging reduces the number of discrete parts that must be handled during assembly while maintaining all necessary functions, directly addressing the contradiction between reliability and assembly complexity.
Solution Approach 2:
The patent segments the firearm into modular components, specifically making the backstrap assembly a separable unit from the grip. This segmentation allows the complex backstrap components to be pre-assembled and tested independently, then installed as a complete module, reducing overall assembly complexity while preserving functional reliability.
2Stability of the object's composition
If the backstrap assembly uses a secure coupling mechanism, then the components remain firmly attached, but the assembly process becomes more complex
Solution Approach 1:
The coupling mechanism is designed to be self-aligning and self-securing. The backstrap assembly includes features that automatically align with corresponding features on the grip during insertion, and the coupling pin design allows the assembly to secure itself without requiring additional fastening steps or complex adjustment procedures, thereby achieving secure attachment without increasing operational complexity.
3Duration of action of moving object
If the main spring is pre-compressed for immediate functionality, then the firearm is ready for use, but the assembly process becomes difficult and components may dislodge
Solution Approach 1:
The backstrap assembly is pre-assembled with the spring and hammer in their correct positions and relationships before installation into the grip. This preliminary assembly allows the spring to be pre-compressed and positioned correctly, ensuring immediate functionality upon installation, while the complete assembly unit prevents component dislodgement during the final installation step into the grip.
Data Source
AI summary
A backstrap assembly is disclosed. The backstrap assembly contains a cavity sized to retain a main spring cap, a main spring retainer, a main spring, and a lower end of a strut, and an opening for a pin, wherein the pin retains the main spring cap, the main spring retainer, and the main spring in the cavity.