Double-Barreled Revolver Trigger Guard Mechanism
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Solution Overview
Problem
Existing double-barreled revolvers require adjustment for different calibers and lack a protected trigger space, leading to inefficient firing and accidental discharge risks.
Innovation Solution
A double-barreled revolver design featuring a trigger lever and separate guard element that collectively define a protected trigger space, with a safety trigger tab and biasing springs to enable simultaneous discharge of two cartridges while preventing accidental actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional trigger guard is used in double-barreled revolvers, then the trigger space is protected, but the trigger lever cannot accommodate multiple fingers for efficient simultaneous discharge
Solution Approach 1:
The trigger guard is divided into a fixed portion attached to the frame and a movable portion attached to the trigger lever. This segmentation allows the movable portion to move with the trigger lever, creating additional space for multiple fingers while the fixed portion maintains the protective barrier against accidental discharge.
Solution Approach 2:
The trigger guard transitions from a static conventional design to a dynamic design where the movable portion follows the trigger lever's motion. This dynamic configuration enables the guard to adapt its shape and position, accommodating multi-finger operation while maintaining protection throughout the trigger's range of motion.
2Productivity
If the trigger lever is extended to accommodate multiple fingers, then simultaneous discharge of two cartridges is enabled, but the risk of accidental actuation increases
Solution Approach 1:
The trigger lever is segmented into a fixed portion and a movable portion, with the movable portion extending further to accommodate multiple fingers. This segmentation allows the lever to provide extended finger accommodation while the fixed portion maintains a stable anchor point, reducing the likelihood of unintended movement.
Solution Approach 2:
The movable portion of the trigger guard acts as an intermediary element between the extended trigger lever and the external environment. It provides a protective barrier that moves with the lever, allowing the lever to extend for multi-finger operation while the guard continues to prevent accidental discharge by blocking unauthorized access to the trigger.
3Adaptability or versatility
If different caliber cartridges are used in the cylinder, then versatility is improved, but adjustment mechanisms are required increasing device complexity
Solution Approach 1:
The firing pin assembly is designed with universal functionality to accommodate different cartridge calibers without requiring adjustment mechanisms. The firing pins and their supporting structure are configured to handle various cartridge sizes and types, allowing the revolver to fire different calibers (such as .38 Special and .357 Magnum) using the same fundamental mechanism.
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 design allows for efficient simultaneous discharge of two cartridges across different calibers, enhancing safety by preventing accidental trigger activation through a self-forming trigger guard mechanism.
Implementation Method 1
a trigger biasing structure including one or more bias springs to apply a force to the trigger lever to bias the trigger lever in a second direction opposite the first direction
Data Source
AI summary
A firearm has a frame, a pivot connection connected to the frame, an elongated trigger lever coupled to the pivot connection and movable in a first direction between a rest position and an actuated position, the trigger lever including a first portion and a second portion, the first and second portions of the trigger lever being configured to receive first and second fingers of a user, and a trigger biasing structure including one or more bias springs to apply a force to the trigger lever to bias the trigger lever in a second direction opposite the first direction, and wherein a force applied to move the trigger lever in the first direction is the sum of an applied force multiplied by the distance between the first portion and the pivot connection and the applied force multiplied by the distance between the second portion and the pivot connection.