Handgun Locking Device Arched Surfaces Recoil Deformation
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Solution Overview
Problem
Devices with short recoil guns suffer from deformation of bifurcated arms in the locking device due to repeated recoiling forces, leading to increased difficulty in sliding and a significantly shortened useful life.
Innovation Solution
A gun with a locking device featuring wide contact surfaces between mechanical parts, including arched locking surfaces and a U-shaped locking device with device arms that overlap guiding elements to reduce divarication and prevent deformation, allowing for a more stable and efficient recoil mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If tab-like locking projections are used on bifurcated arms, then the locking device can be compact and simple in structure, but the projections get progressively deformed due to repeated recoiling forces, leading to sliding difficulty and shortened useful life
Solution Approach 1:
The locking device employs arched locking surfaces with curved geometries instead of flat tab-like projections. The arch-shaped contact surfaces distribute recoil forces more evenly across the locking mechanism, preventing progressive deformation at specific points. This curved design maintains reliable locking engagement over thousands of firing cycles while preserving structural simplicity.
Solution Approach 2:
The invention changes the geometric parameters of the locking surfaces from flat tabs to arched surfaces with optimized radius and thickness. This parameter modification increases the moment of inertia and structural rigidity of the locking arms, enabling them to withstand repeated recoiling forces without deformation, thereby extending useful life while maintaining compact dimensions.
2Reliability
If wide contact surfaces are used between mechanical parts, then wear is reduced and useful life is extended, but the overall dimensions of the locking device increase
Solution Approach 1:
The locking device utilizes three-dimensional arched surfaces that wrap around the barrel, creating wide contact areas in multiple dimensions. The arch-shaped locking surfaces engage with corresponding grooves in a manner that distributes contact across height, width, and depth, achieving extensive wear resistance without proportionally increasing overall device volume.
Solution Approach 2:
The curved arch geometry concentrates the wide contact surface area into a compact radial space. By distributing contact pressure along the curved surface rather than requiring a large flat area, the design achieves extensive surface contact for wear reduction while maintaining compact lateral dimensions of the locking device.
3Force
If device arms are allowed to diverge during recoil, then the locking mechanism can accommodate recoil forces, but divarication of the arms increases wear and reduces accuracy
Solution Approach 1:
The locking device incorporates pre-compressed spring elements and flexible mounting mechanisms that cushion the impact of recoil forces before they are transmitted to the device arms. This beforehand cushioning reduces the severity of arm divergence during recoil, maintaining tighter tolerances and better accuracy while still accommodating the full force of recoil through the compliant mounting system.
Solution Approach 2:
The arched geometry of the locking arms provides inherent structural rigidity that resists divarication during recoil. The curved shape distributes stress more evenly through the arm structure, reducing unwanted divergence and maintaining precise alignment between locking surfaces, thereby preserving manufacturing precision and shooting accuracy even under high recoil forces.
Data Source
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Figure 5~6
AI summary
Gun (1) comprising a gun frame (2); a barrel (4), supported by the gun frame (2), proximally delimiting a firing chamber (6) extending along a longitudinal axis (X); a slide (8), translatable longitudinally in relation to the barrel (4) between a forward configuration wherein the slide closes the firing chamber (6), and a rearward configuration wherein it is distanced from a proximal mouth (12) of the firing chamber (6), to open the latter; wherein orientation of said chamber (6) is substantially parallel to said axis (X) in the forward configuration and in the rearward configuration; and a locking device (10) mechanically locking barrel (4) and slide (8) to each other in the forward configuration, and that in the rearward configuration is guided transversally in relation to the barrel (4) for unlocking the slide (8). Slide (8) and locking device (10) delimit arched locking surfaces (14, 16) that in the forward configuration are coupled with each other for locking the slide (8), and that in the rearward configuration are mutually spaced in a transversal direction for opening said chamber (6).