Ambidextrous Charging Handle with Integrated Latch Mechanism
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Solution Overview
Problem
Existing charging handles for firearms often face issues with ambidextrous operation, as they can be rendered inoperable by clothing, vegetation, or debris caught between the latch lever and handle, and dust/debris in the latch linkages can interfere with operation, limiting ease of use, especially for injured operators or those with limited hand space.
Innovation Solution
A charging handle assembly where the handle itself acts as the actuator, translating along the body and using a spring to move a latch between latched and unlatched positions, eliminating the need for a latch lever and protecting the latch and spring within the assembly to reduce interference with external obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a latch lever and latch linkage are used in the charging handle, then the charging handle can be operated, but clothing, vegetation, or debris can become caught between the latch lever and handle, rendering the charging handle inoperable
Solution Approach 1:
The patent removes the latch lever and latch linkage from the charging handle assembly, extracting the problematic components that could be caught by clothing or vegetation. The charging handle operates directly without these intermediate components, eliminating the harmful factor of debris entrapment while maintaining the core function of releasing the charging handle from the receiver.
2Ease of operation
If a latch lever and latch linkage are used in the charging handle, then the charging handle can be operated, but dust or debris in the latch linkages can interfere with operation
Solution Approach 1:
The patent eliminates the latch linkage entirely, removing the cavity and mechanical connection points where dust and debris could accumulate and interfere with operation. The direct operation mechanism avoids these vulnerable linkage areas, ensuring reliable operation even in dusty or debris-filled environments.
3Adaptability or versatility
If the handle is made translatable along the body, then ambidextrous operation is enabled, but the structure becomes more complex
Solution Approach 1:
The patent makes the handle translatable along the body, allowing dynamic movement between positions to enable ambidextrous operation. The handle can be moved to different locations on the receiver and secured in place, providing adaptability for left-handed or right-handed operation while maintaining a relatively simple structure through this dynamic positioning capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates ambidextrous operation by allowing the handle to be pulled rearward to unlatch, improving usability in various conditions and reducing entanglement with clothing or debris, enhancing ease of use for operators with limited access or injuries.
Implementation Method 1
A spring biases the handle and latch towards the latched position, and upon release of the handle, the latch can return to the latched position
Data Source
AI summary
A charging handle assembly includes a body extending along a longitudinal axis and having a proximal end portion and a distal end portion. A handle is connected to the proximal end portion of the body and is translatable along the body between a first position and a second position. A latch is connected to the handle or the body and is operable between a latched position and an unlatched position. Moving the handle from the first position to the second position moves the latch from the latched position to the unlatched position. Also disclosed is a charging handle assembly with a latch configured to engage a top of the lower receiver.