Removable Bolt Handle for Firearm Shroud
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Solution Overview
Problem
Bolt action firearms require cumbersome disassembly to replace the bolt handle, which is often integrally formed with other components, making customization and handle replacement difficult and time-consuming.
Innovation Solution
A bolt assembly design that includes a shroud and handle with a radial protrusion, allowing the handle to be removed by rotating the shroud, thus clearing a circumferential opening, enabling easy removal and replacement without disassembling the entire bolt assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bolt handle is integrally formed with other components or welded in place, then the structural strength and reliability are improved, but the ease of removal and replacement of the bolt handle deteriorates
Solution Approach 1:
The bolt handle assembly is divided into separate components: a handle body, a shaft, and a bolt assembly. The handle body can be removed from the bolt assembly by rotating the shroud, allowing customization without compromising the structural integrity of each component. This segmentation enables easy replacement while maintaining reliability through proper reassembly.
Solution Approach 2:
The handle body is nested within the shroud, which rotates with respect to the bolt body. The shaft connects the handle body to the bolt assembly, creating a nested structure where the handle body can be independently removed by rotating the outer shroud, facilitating easy replacement while maintaining structural strength during operation.
2Ease of operation
If the entire bolt assembly is disassembled to replace the bolt handle, then the bolt handle replacement is achieved, but the device complexity and time required increase
Solution Approach 1:
The handle body is extracted as a separate removable component from the bolt assembly. By rotating the shroud, the handle body can be independently removed without disassembling the entire bolt assembly, significantly reducing the complexity and time required for handle replacement while maintaining full functionality of the remaining components.
Solution Approach 2:
The shroud is designed to rotate with respect to the bolt body, creating a dynamic mechanism that enables easy removal and reinstallation of the handle body. This rotational movement provides a simple, controlled method for handle replacement without requiring complex disassembly procedures.
3Stability of the object's composition
If the bolt handle is fixed in place, then the structural stability is improved, but the adaptability for customization deteriorates
Solution Approach 1:
The bolt handle system is segmented into a removable handle body and a stable bolt assembly. The handle body can be customized and replaced while the bolt assembly remains stable and fixed in the firearm. This segmentation allows users to adapt the handle to their preferences while maintaining the structural stability of the core firing mechanism.
Solution Approach 2:
The standardized interface between the handle body and bolt assembly allows multiple different handle bodies to be used with the same bolt assembly. The rotational removal mechanism provides a universal method for replacing handles with different shapes, sizes, and grips, enhancing customization while maintaining structural stability through consistent reassembly procedures.
Data Source
AI summary
A bolt assembly for a bolt action firearm includes a bolt body, a handle coupled to the bolt body, and a shroud that receives the bolt body and the handle. Rotation of the shroud with respect to the bolt body allows the handle to be removed from the bolt assembly. A bolt handle for a firearm includes a shaft having a radial extension at one end and a knob at an opposite end, a radial protrusion extending from the radial extension, and prongs extending from the radial extension that define a space for coupling the handle to the bolt body without engaging a firing arm of the firearm.