Firearm Slide Charging Handle Attachment with Serrated Grip
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Solution Overview
Problem
Conventional semi-automatic handguns require significant force to cycle the slide assembly, posing difficulties for smaller or older users due to insufficient gripping areas on the slide.
Innovation Solution
A charging handle attachment with upper and lower members featuring internal and external serrations that mate with the slide's serrations, secured by fasteners, providing a secure grip without obstructing the rear sight and designed to accommodate various materials and colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional slide assembly gripping areas (ribs, channels) are used, then the structure remains simple, but the gripping effectiveness is insufficient for smaller or older users
Solution Approach 1:
The charging handle attachment is divided into an upper member and a lower member that can be separately manufactured and then assembled together using fasteners. This segmentation allows for optimized gripping surfaces on each member while maintaining manufacturing simplicity and enabling modular replacement or adjustment.
Solution Approach 2:
The charging handle attachment serves as an intermediary device between the user's hand and the slide assembly. It provides enhanced gripping surfaces (ridges, channels, and textured areas) that mediate the force application, making it easier for users with limited hand strength to cycle the slide.
2Ease of operation
If a charging handle attachment is added to enhance gripping, then ease of operation improves, but device complexity increases
Solution Approach 1:
The attachment is segmented into upper and lower members with distinct functions - the upper member provides gripping surfaces and the lower member interfaces with the slide's serrations. This segmentation simplifies manufacturing and assembly while achieving the dual goal of enhanced operation and controlled complexity.
Solution Approach 2:
The charging handle attachment performs multiple functions: it provides enhanced gripping surfaces for user comfort, interfaces with the slide's existing serrations for secure attachment, and maintains compatibility with standard fastener systems. This multi-functionality reduces the need for additional components, thereby managing complexity.
3Illumination intensity
If the upper member is designed to not block the rear sight, then visibility is maintained, but the attachment design becomes more constrained
Solution Approach 1:
The upper member is designed with localized gripping features (ridges and channels) concentrated in specific areas that do not interfere with the rear sight line. This local quality approach ensures that only the necessary portions of the upper member have enhanced gripping surfaces, maintaining sight visibility while providing adequate grip enhancement.
Solution Approach 2:
The attachment design utilizes the vertical dimension by positioning the upper member's gripping surfaces above the sight line level. This dimensional arrangement allows the gripping features to extend upward without blocking the rear sight, effectively resolving the conflict between grip enhancement and visibility.
4Reliability
If internal and external serrations are used for secure attachment, then reliability improves, but manufacturing precision requirements increase
Solution Approach 1:
The serration design incorporates specific geometric parameters (tooth profile, spacing, and depth) that are optimized for both reliability and manufacturability. By carefully selecting these parameters, the attachment achieves secure engagement with the slide while remaining compatible with standard manufacturing tolerances and machining capabilities.
Solution Approach 2:
The internal and external serrations are designed with matching geometries that create a homogeneous interface between the attachment and the slide. This homogeneous design ensures consistent engagement across multiple attachment points, improving reliability while simplifying the manufacturing process through standardized tooth profiles that can be produced with conventional precision.
Data Source
AI summary
A firearm slide accessory includes a charging handle member including an upper member and a lower member. Both the upper and lower members are formed with internal serrations that mate with external serrations of a slide. One or more fasteners secure the upper and lower members together.