Two-Piece Firearm Hammer Enables No-Disassembly Customization
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Solution Overview
Problem
Customization of hammers in firearms, particularly the M1911 pistol, requires disassembly of the entire pistol grip and careful handling of internal components, limiting user customization to swapping at the time of purchase.
Innovation Solution
A two-piece hammer design comprising a thumb portion and a sear portion that can be removably coupled without disassembling the firearm, using interlocking non-planar surfaces and threaded fasteners for secure attachment, allowing easy interchangeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hammer is made as a single integrated piece, then the structural strength and reliability are improved, but the ease of customization deteriorates as users cannot easily swap hammers without disassembling the firearm
Solution Approach 1:
The hammer is divided into two separate components: a hammer body portion that remains permanently attached to the firearm, and a hammer tip portion that can be easily removed and replaced. This segmentation allows users to customize the hammer tip without disassembling the firearm, while the permanent attachment of the hammer body maintains structural integrity and reliability.
2Ease of operation
If the hammer is designed for easy removal and replacement, then the ease of operation for customization is improved, but the device complexity increases due to additional coupling mechanisms
Solution Approach 1:
The hammer is segmented into a hammer body portion and a hammer tip portion that can be independently assembled and disassembled, enabling easy customization without requiring full disassembly of the firearm.
Solution Approach 2:
The hammer tip portion includes a threaded bore that allows users to secure it to the hammer body portion using standard threaded fasteners, enabling self-service customization without requiring specialized tools or knowledge. The coupling mechanism is designed to be user-friendly and maintainable by the end user.
3Manufacturing precision
If professional assembly procedures are required for hammer installation, then the manufacturing precision and reliability are improved, but the ease of manufacture deteriorates as it requires trained professionals
Solution Approach 1:
The coupling mechanism between the hammer body portion and hammer tip portion is designed to be assembled and disassembled by users without requiring specialized training or tools. The threaded connection with standard fasteners allows precision assembly that maintains reliability while being accessible to ordinary users.
Data Source
AI summary
A hammer for use within a firing mechanism of a firearm includes a thumb portion removably coupled to a sear portion. The thumb portion includes a spur end to be engaged by a thumb of a user to cock the hammer to a firing position and a sear end having a sear mating end wall with a non-planar surface. The sear portion includes a triggering end to engage the sear of the firing mechanism, and a thumb end having a thumb mating end wall with a corresponding non-planar surface which mates with the non-planar surface of the sear mating end wall of the thumb portion. The thumb portion can then be removed from the sear portion without requiring decoupling of the sear portion from the remainder of the firing mechanism.