Firearm Trigger Assembly With Offset Cavity And Secondary Biasing
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Solution Overview
Problem
Existing firearm trigger designs lack innovative features that provide enhanced functionality and adaptability, particularly in terms of biasing mechanisms to manage hammer orientation effectively.
Innovation Solution
A firearm trigger assembly featuring a hammer with a cavity offset from its axis, incorporating a secondary biasing mechanism with a support member and biasing member, which applies force to the hammer in multiple orientations, cooperating or counteracting the primary biasing mechanism depending on the hammer's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single primary biasing mechanism is used to bias the hammer, then the structure is simple, but the adaptability to different hammer orientations is insufficient
Solution Approach 1:
The biasing mechanism is segmented into a primary biasing mechanism and a secondary biasing mechanism. The primary mechanism provides baseline biasing force, while the secondary mechanism adds orientation-dependent biasing. This segmentation allows the system to adapt to different hammer orientations without requiring a complete redesign of the biasing system.
Solution Approach 2:
The secondary biasing mechanism is configured to be dynamically engaged or disengaged based on hammer orientation. When the hammer is in a specific orientation (e.g., vertical), the secondary mechanism becomes effective and adds additional biasing force. When the hammer is in other orientations, the secondary mechanism is disengaged, maintaining simplicity.
2Adaptability or versatility
If the cavity is positioned on the hammer axis, then the structure is symmetric and simple, but the ability to accommodate the secondary biasing mechanism is reduced
Solution Approach 1:
The cavity is deliberately positioned asymmetrically, offset from the hammer axis. This asymmetric positioning creates space for the secondary biasing mechanism to be installed and operate effectively. The offset cavity allows the support member and biasing member to be arranged in a configuration that enables orientation-dependent biasing, which would not be possible with a symmetric, on-axis cavity.
3Force
If the secondary biasing mechanism is fully engaged, then the biasing force in specific orientations is enhanced, but the device complexity increases
Solution Approach 1:
The secondary biasing mechanism is designed to provide partial biasing force only when needed (when the hammer is in the specific orientation). It does not continuously engage, which would unnecessarily increase complexity. The mechanism provides excessive biasing force only in the specific orientation where it is required, while remaining inactive in other orientations.
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
The solution enables the trigger assembly to efficiently bias the hammer in different orientations, enhancing its operational flexibility and performance by providing adjustable force application, thus improving the overall functionality of the trigger mechanism.
Implementation Method 1
A secondary biasing mechanism is provided including a support member and a biasing member. The biasing member may be a spring.
Data Source
AI summary
In some embodiments, a firearm trigger assembly comprises a hammer arranged to pivot on a hammer axis. The hammer comprises a cavity offset from the hammer axis, and the cavity has an opening that extends along a length of the cavity. A secondary biasing mechanism comprises a support member and a biasing member. The support member comprises a first portion oriented in the cavity and a second portion arranged to support the biasing member. The first portion is fixedly attached to the second portion. The trigger assembly has a first orientation and a second orientation. The secondary biasing mechanism biases the hammer in a first direction about the hammer axis in the first orientation, and in a second direction about the hammer axis in the second orientation.