Barrel Bushing Slide Guidance and Retention Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing firearm designs require complex disassembly procedures and additional components for smooth slide operation and field stripping, which can be cumbersome and require tools.
Innovation Solution
A ring-shaped barrel bushing that is biased by the recoil spring into a cone feature on the slide, allowing for smooth slide action and easy disassembly without the need for additional connectors or tools, with a bushing stop retaining the bushing and spring on the barrel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional firearm designs are used with complex disassembly procedures, then structural stability is maintained, but ease of operation deteriorates due to cumbersome disassembly requiring tools
Solution Approach 1:
The firearm is divided into separable modules: the slide assembly can be independently removed from the frame by pivoting rearward, while the barrel bushing and recoil spring remain retained on the barrel. This segmentation allows easy field stripping without requiring complete disassembly or special tools.
Solution Approach 2:
The barrel bushing is extracted as a separate retained component that stays on the barrel when the slide is removed. The bushing stop specifically extracts the function of retaining the recoil spring and bushing independently from the slide assembly, simplifying the disassembly process.
2Reliability
If additional components are added for smooth slide operation, then reliability is improved, but device complexity increases requiring more parts and connectors
Solution Approach 1:
The barrel bushing combines multiple functions into a single component: it guides slide movement, retains the recoil spring, and interfaces with both the barrel and slide. The bushing stop merges the retention function for both the bushing and recoil spring into one simple component.
Solution Approach 2:
The barrel bushing serves multiple purposes: guiding slide reciprocation, retaining the recoil spring, providing a pivot point for disassembly, and maintaining alignment between the barrel and slide. This multi-functionality reduces the need for separate dedicated components.
3Ease of operation
If tools and connectors are required for disassembly, then structural stability is maintained, but ease of operation deteriorates due to tool requirements
Solution Approach 1:
The firearm's disassembly mechanism is self-service: the slide pivots rearward on the retained barrel bushing to automatically clear from the barrel, and the bushing stop automatically retains the recoil spring and bushing. No external tools or connectors are needed—the components themselves enable their own disassembly and reassembly.
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 field stripping and reassembly of firearms by allowing the slide to be removed without screws or tools, maintaining alignment and recoil spring retention, enhancing user convenience and reducing assembly complexity.
Implementation Method 1
A ring-shaped barrel bushing is biased by the recoil spring into a cone feature on the slide
Data Source
AI summary
A firearm including a barrel bushing is disclosed. The barrel bushing provides for guidance of the slide without a need for forward rails. The barrel bushing is retained by a bushing stop that allows the slide to be removed while the recoil spring and bushing are retained on the barrel.