Interchangeable Pistol Slide Assembly with Pre-Aligned Sights
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Solution Overview
Problem
Existing firearms, particularly automatic pistols, face challenges in easily converting between calibers and accommodating interchangeable sights, with current solutions complicating the process and potentially reducing reliability and increasing costs.
Innovation Solution
A replacement slide assembly for pistols that allows easy conversion between calibers by ensuring the slide housing moves parallel to the barrel axis, and a sight mounting system that enables interchangeable sights without requiring re-sighting, maintaining the same orientation with the barrel axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pistol is designed with a fixed slide assembly for a specific caliber, then the reliability and performance for that caliber are optimized, but the adaptability to different calibers is reduced
Solution Approach 1:
The slide assembly is divided into separate, interchangeable components including the slide housing, barrel assembly, and firing chamber that can be independently removed and replaced. This segmentation allows different caliber slide assemblies to be easily interchanged on the same pistol frame without requiring complex conversion mechanisms.
Solution Approach 2:
The pistol frame is designed with universal mounting features that accommodate multiple types of slide assemblies for different calibers. The frame serves multiple functions by supporting various slide configurations, enabling the same pistol body to operate with different calibers through simple slide assembly replacement.
2Force
If smaller caliber ammunition is used in a pistol designed for larger caliber, then the cost and recoil are reduced, but the slide housing may not have sufficient power to cycle back and forth
Solution Approach 1:
Different slide assemblies are designed with specific parameters optimized for their respective calibers, including spring tension, barrel weight, and chamber dimensions. When converting to smaller caliber, the corresponding slide assembly has adjusted parameters that ensure proper cycling function with the reduced recoil force of smaller ammunition.
Solution Approach 2:
The recoil spring acts as an intermediary mechanism that translates the reduced recoil force from smaller caliber ammunition into sufficient cycling motion. The spring is specifically calibrated for each caliber to ensure that even with lower recoil energy, the slide housing can complete its rearward and forward cycling motion reliably.
3Adaptability or versatility
If traditional sight mounting methods are used, then the sights are securely attached, but the sights cannot be easily interchanged without re-sighting
Solution Approach 1:
Sights are pre-mounted on detachable sight bases that are already aligned with the barrel axis during manufacturing. These pre-aligned sight bases can be quickly removed and replaced with different sights without requiring field adjustment or re-sighting, as the alignment has been established in advance during production.
Solution Approach 2:
The sight mounting system transitions from a fixed, permanent attachment to a dynamic, detachable connection. Sights are mounted on removable bases that can be quickly swapped, and the system maintains alignment through mechanical features such as indexing pins or tapered mounts that automatically reposition the sight base in the correct orientation upon reattachment.
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
Facilitates easy caliber conversion and sight interchangeability, improving operational simplicity and reliability while maintaining shooting performance.
Implementation Method 1
the recoil of the pistol induces the slide housing to slide backwards along the frame
Implementation Method 2
the spring biasing of the slide housing
Data Source
AI summary
A replacement slide assembly for a pistol, the slide assembly having a barrel assembly with a barrel and a firing chamber. The barrel assembly also has a guide member which is a protrusion that extends horizontally outward from the barrel assembly. The replacement slide assembly also includes a housing with an interior wall that defines a groove that receives the guide member. The guide member and the groove in the housing are located forward of a firing pin assembly also mounted within the housing. The slide assembly or any firearm also includes an adjustable sight assembly that permits interchangeability between different types of sights without requiring that the firearm be re-sighted.