Weapon Trigger Parallel Bars Kinesthetic Feedback

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Solution Overview

Problem

Traditional weapon triggers with smooth, flat surfaces provide limited mechanoreceptor stimulation, making it difficult for operators to sense tipping during trigger manipulation, leading to inaccurate shot placement, especially when wearing gloves.

Innovation Solution

Incorporating kinesthetic features such as parallel bars on the trigger face, which provide two points of contact, increasing mechanoreceptor stimulation and allowing for a straight, even, and consistent trigger press.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a smooth, flat trigger surface is used, then the trigger structure is simple, but the operator has limited kinesthetic awareness and cannot sense tipping during trigger manipulation

Engineering Contradiction:

Improvetrigger structureVSAvoidkinesthetic awareness

Core Design Contradiction:

Device complexityVSLoss of information

Solution Approach 1:

The trigger surface incorporates localized textured regions with different friction coefficients in specific zones, allowing the operator's finger to sense tip-off movements through variations in tactile feedback while maintaining overall structural simplicity

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

A textured intermediate layer is applied to the trigger surface to mediate between the smooth trigger body and the operator's finger, providing enhanced kinesthetic feedback without requiring complete redesign of the trigger structure

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the operator presses the trigger with a single point of contact, then the trigger operation is simple, but the weapon tips to the left or right during trigger manipulation

Engineering Contradiction:

Improvetrigger operationVSAvoidweapon alignment

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The trigger pressing action is segmented into multiple contact points distributed across the trigger face, with textured zones guiding the operator to apply pressure at specific locations that maintain weapon stability while preserving ease of operation

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The trigger surface incorporates dimensional variations through textured patterns that add tactile depth, allowing the operator to sense and maintain proper finger positioning in multiple dimensions simultaneously, preventing lateral weapon movement

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Object-affected harmful factors

If the operator wears a glove during trigger manipulation, then hand protection is provided, but mechanoreceptor stimulation is reduced and control is lost

Engineering Contradiction:

Improvehand protectionVSAvoidmechanoreceptor stimulation

Core Design Contradiction:

Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The trigger surface features localized textured zones with optimized friction properties that work effectively through glove material, providing sufficient tactile feedback to gloved fingers while maintaining hand protection

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The trigger surface texture parameters (friction coefficient, surface roughness, pattern geometry) are specifically optimized to transmit tactile information through glove material, maintaining mechanoreceptor stimulation even when the operator wears protective gloves

Inventive Principle:

Principle #35Parameter changes

4Stability of the object's composition

If the trigger pull weight is lightened to decrease pressure on the trigger face, then the operator is less likely to tip the weapon, but safety and reliability decrease

Engineering Contradiction:

Improveweapon stabilityVSAvoidtrigger safety

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The trigger surface incorporates localized friction-enhanced zones that allow the operator to maintain precise control with lighter trigger pull weights, achieving weapon stability without compromising trigger safety or requiring excessive force

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent replaces reliance on mechanical trigger pull weight alone with a combined system of optimized surface friction and textured feedback, allowing lighter trigger springs to maintain control through enhanced tactile guidance rather than increased mechanical force

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10247503B2Trigger

Publication Date: 2019.04.02 MIDCO HOLDINGS LLC

AI summary

A trigger can include one or more kinesthetic features to provide increased mechanoreceptor stimulation. This can give a shooter increased kinesthetic awareness of the trigger pull. The trigger can include any number of different kinesthetic features in different configurations such as ridges, grooves, bumps or depressions, raised or depressed surfaces, bars, etc. These features can provide an increased sense of feel to encourage the straight, even, efficient and/or consistent pressing of the weapon's trigger to produce consistent and accurate shot placement. The trigger can include two kinesthetic features or reference points, such as parallel bars, on the trigger face. With the parallel reference points the operator can apply equal pressure across the face of the trigger during manipulation.