Pistol Disassembly Key Locking for Magazine-Empty Separation
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Solution Overview
Problem
Existing pistol disassembly mechanisms face issues such as accidental firing due to loaded magazines, ergonomic challenges, and complexity in disassembly, particularly in architectures where the barrel and slide decouple via rotation or translation.
Innovation Solution
A disassembly key with mortise-and-tenon blocking means that allows rotation only when the slide is in a predetermined position, featuring a transverse resting and rotation position, and includes a magazine sensor to prevent disassembly with a loaded magazine, ensuring safe and ergonomic disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a disassembly lever is used that can rotate freely when the slide is in the correct position, then the disassembly process is simplified, but the risk of accidental firing increases because the lever can be actuated without ensuring the magazine is removed
Solution Approach 1:
The patent requires the magazine to be removed before the disassembly lever can be actuated. The blocking means prevent lever rotation unless the magazine removal condition is met, forcing the user to perform the safe unloading action first. This preliminary action ensures safety before disassembly can proceed.
Solution Approach 2:
The blocking means act as an intermediary mechanism between the magazine presence and lever rotation. This intermediary blocks the direct path from lever actuation to disassembly, inserting a safety check that prevents accidental firing while allowing legitimate disassembly when the magazine is properly removed.
2Reliability
If a disassembly paddle is used that requires simultaneous force application to both sides, then accidental disassembly is prevented, but the disassembly process becomes more difficult and less ergonomic
Solution Approach 1:
The patent eliminates the need for simultaneous force application by using a lever that rotates in a single direction. The blocking means are designed to release with a simple unidirectional rotation motion, making the operation ergonomic while maintaining safety through the magazine removal requirement rather than complex force application.
3Ease of operation
If the disassembly lever is designed with limited rotation range to avoid contact with the slide, then handling is improved, but the lever may accidentally turn during firing and prevent the next round from being fired
Solution Approach 1:
The blocking means are positioned asymmetrically to allow lever rotation only in the disassembly direction while blocking rotation in the firing direction. This asymmetric design permits sufficient lever travel for ergonomic handling during disassembly while preventing accidental engagement that would interfere with firing operations.
Data Source
AI summary
This disclosure concerns a pistol having an anti-disassembly protection device, which includes a disassembly key arranged rotatably in a frame, and which can be manually turned between an angular locking position and an angular disassembly position, and which disassembly key may occupy a transverse resting position and a transverse rotation position. The disassembly key has blocking means that cooperate with additional blocking means on the frame in order to prevent rotation of the disassembly key into the angular disassembly position when the disassembly key occupies the transverse resting position.