Rotary Trigger System with Nested Hammer for Compact Firearm Design
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Solution Overview
Problem
Existing trigger systems for firearms are labor-intensive and expensive to produce, particularly when designed for double-action configurations with flybolts, lacking a compact and lightweight solution that meets increased safety requirements.
Innovation Solution
The hammer, striker, release device, and main spring are mounted for rotation about a common principal axis, allowing for a decocked hammer to be safely stored within the handgun handle, with a trigger system design that includes operational angles between 0° to 40°, enabling efficient cocking and firing mechanisms without precocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional double-action trigger systems with flybolts are used, then safety requirements are met, but production costs and manufacturing complexity increase
Solution Approach 1:
The patent merges multiple separate components (hammer, striker, release device, main spring) onto a single common rotation axis, integrating functions that were traditionally separate in double-action systems. This consolidation simplifies manufacturing while maintaining safety through the shared axis design that ensures coordinated movement of all firing components.
Solution Approach 2:
The common rotation axis serves multiple functions simultaneously: it supports the hammer, striker, and release device; provides the main spring mounting; and enables both cocking and firing operations through a single trigger mechanism. This multi-functionality reduces the number of separate mechanical systems needed, lowering production costs while maintaining reliability.
2Ease of operation
If hammer is exposed outside the handle, then firing operation is easier, but safety is compromised due to external mechanical influences
Solution Approach 1:
The hammer is nested within the handgun handle during the cocked state, with all firing components contained inside the handle boundaries. The common rotation axis allows the hammer to rotate within the handle's internal space, keeping the hammer head protected from external mechanical influences while the trigger mechanism outside provides easy access for firing operation.
Solution Approach 2:
The patent utilizes rotational movement around a common axis to achieve hammer cocking and firing without requiring the hammer to extend beyond the handle. The angular displacement (0° to 40° operational angle) provides the necessary movement range within the constrained spatial envelope of the handle, separating the firing operation dimension from the hammer position dimension.
3Adaptability or versatility
If multiple separate components are used for hammer, striker, and release device, then each component can be optimized independently, but device complexity and weight increase
Solution Approach 1:
While maintaining separate optimized components for hammer, striker, and release device, the patent combines their mounting structures onto a single common rotation axis. This reduces the overall assembly complexity by eliminating multiple separate mounting mechanisms, bearing housings, and alignment features that would be required if each component had its own independent mounting system.
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
This design results in a robust, compact, and lightweight trigger system that enhances safety by allowing the hammer to be safely stored and easily rotated for firing, reducing production costs and complexity.
Implementation Method 1
a main spring for biasing the striker are mounted for rotation about a common principal axis
Implementation Method 2
due to the action of a trigger spring moving the trigger back to its rest position
Implementation Method 3
the action of a release spring biases the hammer toward the entrainer
Implementation Method 4
During a forward movement of the breech block caused by the action of a breach spring
Data Source
AI summary
In a trigger system (100) comprising a hammer (110) for firing a cartridge, a striker (120) adapted to accelerate the hammer (110), and a sear (130) for releasably locking the striker (120), which sear (130) can be unlocked by means of a release device (140) capable of being actuated by means of a trigger bar (160) that can be moved by a trigger (150), wherein a front surface (121) of the striker rests against an end face (111) of the hammer for the purpose of accelerating the hammer (110) to initiate firing, protection of the cocked hammer (110) from external mechanical influences is made possible by mounting the hammer (110), the striker (120), the release device (140), and also a main spring (170) adapted to accelerate the striker (120) for rotation about a common principal axis (180).