Trigger Shroud for Firearm Safety

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Solution Overview

Problem

Current firearm safety measures, such as trigger locks and external safeties, are inadequate in preventing unintentional or negligent discharges, as they require operator attention and can be disengaged during critical situations, leaving a risk of accidental firing even for trained professionals.

Innovation Solution

A shroud mechanism that shields the firearm trigger, remaining closed by gravity or spring pressure unless intentionally opened by the operator, preventing inadvertent access while allowing quick, intentional access, thereby minimizing accidental trigger activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a trigger lock is used to block unintentional engagement, then safety against accidental discharge is improved, but the firearm becomes impractical to use for its intended purpose

Engineering Contradiction:
Improvesafety against accidental dischargeVSAvoidpracticality for intended use
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the safety function from a separate trigger lock device and integrates it directly into the trigger mechanism itself. The trigger incorporates a safety feature that is built-in rather than external, allowing the trigger to inherently prevent unintended activation while remaining functional for intended use.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the safety function with the trigger mechanism by integrating a safety element directly into the trigger's structure. This combination allows the trigger to simultaneously perform its primary function of firing the weapon and its secondary function of preventing accidental discharge, eliminating the need for separate safety devices.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If an external safety mechanism is engaged to prevent accidental discharge, then safety is improved, but the operator loses time in disengaging it during critical situations

Engineering Contradiction:
Improvesafety against accidental dischargeVSAvoidtime to disengage safety
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The safety function is merged with the trigger mechanism itself, eliminating the need for separate engagement and disengagement actions. The integrated design allows the safety feature to be inherently part of the trigger's operation, removing the time delay associated with manipulating external safety mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent enables continuous readiness for firing by integrating the safety function directly into the trigger mechanism. The operator maintains continuous control without interruption from separate safety engagement/disengagement cycles, allowing immediate response in critical situations while safety protection remains active.

Inventive Principle:
Principle #20Continuity of useful action

3Productivity

If the trigger is left exposed for quick access, then operational efficiency is improved, but the risk of accidental activation by ambient materials increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidaccidental activation by ambient materials
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies a protective feature locally to the trigger mechanism rather than requiring complete enclosure. The safety element is positioned specifically where needed to prevent ambient material contact while leaving the trigger accessible for intentional operation, providing targeted protection without compromising overall accessibility.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent introduces an intermediary safety feature between the trigger and ambient materials. This intermediate element acts as a barrier that prevents accidental contact from branches, gear, or other environmental factors while still allowing the operator's finger to reach and actuate the trigger intentionally.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 shroud provides continuous safety without impeding efficient operation, reducing reaction time in combat scenarios and preventing accidental discharges by ensuring the trigger remains protected unless purposefully accessed.

Implementation Method 1

remains closed by gravity or spring pressure unless intentionally opened by the operator

Methodology Applied
Scientific EffectSpring pressure: Spring

Implementation Method 2

remains closed by gravity or spring pressure unless intentionally opened by the operator

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS11125519B2Trigger shield apparatus
Publication Date: 2021.09.21 RICHETTI TACTICAL SOLUTIONS LLC
  • US11125519B2 patent drawing
  • US11125519B2 patent drawing
  • US11125519B2 patent drawing

AI summary

Shrouds for preventing unintentional engagement or initiation of triggers of trigger operated devices during handling of the trigger operated device are described.