1911 Bushing Wrench Recoil Spring Plug Catcher
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tools for disassembling and reassembling 1911 pattern automatic pistols lack a secure mechanism to handle the recoil spring plug/guide rod plug under spring pressure, risking accidental release and injury or damage.
Innovation Solution
A multi-tool with a flat handle, a barrel bushing aperture, a recoil spring plug catcher/installer, and a ¼ inch hex insert, made of high-density polymer plastic, that securely engages and releases the recoil spring plug/guide rod plug, and accommodates hex tool bits for further disassembly and reassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a barrel bushing wrench is used to rotate the barrel bushing, then the rotation and removal of the barrel bushing is facilitated, but the recoil spring plug can slip off and launch as a projectile causing injury or damage
Solution Approach 1:
The patent introduces a specialized tool that acts as an intermediary between the user and the firearm components. This tool includes a barrel bushing wrench portion for rotating the bushing and a separate recoil spring plug catcher portion that intercepts and contains the plug as it is released from spring pressure, preventing it from launching as a projectile
Solution Approach 2:
The patent combines two separate functions into a single integrated tool: the barrel bushing wrench and the recoil spring plug catcher are merged into one device. This allows the user to perform both the rotation of the barrel bushing and the containment of the recoil spring plug simultaneously, eliminating the need for separate tools and reducing the risk of plug ejection
2Device complexity
If the recoil spring plug is depressed by hand to rotate the barrel bushing, then no additional tool is needed, but the procedure is difficult and awkward due to spring pressure
Solution Approach 1:
The patent merges the functions of depressing the recoil spring plug and rotating the barrel bushing into a single integrated tool. The tool features a recess that receives and holds the plug while a wrench portion rotates the barrel bushing, allowing both actions to be performed simultaneously with one tool rather than requiring complex hand coordination
Solution Approach 2:
The integrated tool serves as an intermediary that manages the spring pressure automatically. The recess in the tool contains the plug and absorbs the spring force, while the wrench portion provides mechanical advantage for rotating the barrel bushing, making the procedure easier and safer
3Ease of operation
If existing barrel bushing wrenches are used, then the barrel bushing can be rotated, but there is no provision to secure the recoil spring plug during the operation
Solution Approach 1:
The patent combines the barrel bushing wrench function and the recoil spring plug security function into a single integrated device. The tool includes both the wrench portion for rotating the barrel bushing and the catcher portion with a recess for securing the plug, ensuring both functions are performed reliably together
Solution Approach 2:
The integrated tool acts as an intermediary that simultaneously manages both the barrel bushing rotation and the plug security. The wrench portion provides controlled rotation while the catcher portion with its recess securely contains the plug, preventing ejection throughout the entire operation
Data Source
AI summary
A firearm tool is provided that can include: an elongate member extending from a first end to a second end and defining opposing planar surfaces; at least two openings defined about the first end of the elongate member and extending between the opposing planar surfaces; one of the two openings configured to engage a bushing; another of the two openings configured to receive a recoil spring; and wherein the at least two openings overlap.