Modular Charging Handle for Firearms with Interchangeable Grips
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Solution Overview
Problem
Firearm charging handles lack modularity and ambidexterity, requiring multiple assemblies for ergonomic and mission-specific configurations, and often have complex mechanical parts and stress on pivot pins.
Innovation Solution
A modular charging handle assembly with interchangeable handle segments and a locking mechanism that secures into the firearm's upper receiver, providing an ambidextrous design with few moving parts and robust connection, eliminating the need for multiple assemblies and reducing stress on pivot pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional charging handles are designed with fixed configurations, then manufacturing and operation are simplified, but adaptability and ergonomic versatility deteriorate
Solution Approach 1:
The charging handle is divided into modular segments including a body portion and interchangeable grip portions that can be independently configured. The grip portions can be swapped to provide different ergonomic configurations without changing the core body structure, enabling adaptability while maintaining manufacturing simplicity for each module.
Solution Approach 2:
The charging handle body is designed with universal mounting features that can accommodate multiple types of grip portions. This allows a single body design to serve multiple functions and configurations by simply changing the grip attachments, improving versatility without increasing overall system complexity.
2Adaptability or versatility
If charging handles are designed for single-handed operation, then ease of operation for right-handed users is improved, but ambidexterity deteriorates
Solution Approach 1:
The grip portion is segmented into interchangeable components that can be configured for different hand orientations. Users can swap grip portions to accommodate left-handed or right-handed operation, enabling ambidexterity while maintaining the ergonomic advantages of specialized grip designs for each user type.
3Ease of operation
If charging handles use pivot pin mechanisms, then ease of operation is improved, but mechanical reliability and stress concentration deteriorate
Solution Approach 1:
The vulnerable pivot pin mechanism is extracted and replaced with a direct rigid connection between the grip portion and body. This eliminates the pivot pin while maintaining the necessary movement and operational ease through alternative mechanical means that distribute stress more effectively.
Solution Approach 2:
The grip portion and body are merged through a rigid direct connection that eliminates intermediate pivot components. This combining of elements reduces the number of moving parts and potential failure points while maintaining operational ease through the integrated structure.
Data Source
AI summary
A modular charging handle assembly that includes a charging handle body that extends between a bolt engagement end and a pull end. The charging handle body is oriented along a longitudinal axis. The charging handle assembly also includes a base disposed at the pull end of the charging handle body and operatively connected thereto. The base includes a pair of mounting guides set on either side of the longitudinal axis to provide thereby a modular structure. The charging handle assembly also includes a pair of pull grips mateably and releasably secured to the pair of mounting guides to provide ambidextrous operating means.