Ergonomic Firearm Grip with Curved Extensions

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Solution Overview

Problem

Existing firearm grips do not adequately address hand fatigue during use, requiring users to grip or grasp the handle, which leads to discomfort and reduced accuracy due to improper trigger finger alignment and distribution of firearm weight.

Innovation Solution

An ergonomic firearm grip design featuring a rear grip extension with a circular arc and a front grip extension, along with optional features like a thumb rest, palm swell, and flared bottom, to align the trigger finger with the bore axis and distribute the firearm's weight comfortably, reducing hand fatigue and improving trigger control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional firearm grips are used, then the firearm can be held and operated, but hand fatigue occurs due to improper weight distribution and trigger finger misalignment

Engineering Contradiction:

Improvehand comfortVSAvoidduration of sustained holding

Core Design Contradiction:

Ease of operationVSDuration of action of moving object

Solution Approach 1:

The grip features a circular arc rear extension that curves to align the trigger finger with the bore axis, creating an ergonomic contour that naturally positions the hand and reduces wrist strain during sustained firing

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The grip extends in multiple dimensions with a rear circular arc extension and a front strap extension, adding spatial complexity to distribute weight across different hand regions and improve ergonomic positioning

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Measurement precision

If the trigger finger is not aligned with the bore axis, then the grip can be held, but accuracy decreases due to improper trigger finger alignment

Engineering Contradiction:

Improvetrigger finger alignmentVSAvoidtrigger control

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The circular arc rear extension is specifically designed with a curvature radius that guides the trigger finger into proper alignment with the bore axis, ensuring accurate trigger control while maintaining ergonomic comfort

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Device complexity

If the grip does not have weight distribution features, then the structure can be simple, but wrist strain increases due to poor weight distribution

Engineering Contradiction:

Improvegrip structureVSAvoidwrist strain

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The grip incorporates extensions in multiple dimensions including a rear circular arc extension and front strap extension, creating a multi-dimensional structure that distributes weight across the palm and fingers while maintaining relative structural simplicity

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS8151504B1Ergonomic firearm grip

Publication Date: 2012.04.10 STARK EQUIPMENT CORP

AI summary

An ergonomic firearm grip includes a grip body having a front strap, a rear strap, a lower palm grip portion, and an upper firearm interface portion with parallel sides, a front interface end and a rear interface end, a rear strap extension connected to the rear strap adjacent the upper firearm interface portion where the rear strap extension has a rear curved surface portion that extends horizontally away from the rear strap at the junction of the rear strap extension and the rear strap and forming the rear interface end, and a front strap extension connected to the front strap where the front strap extension has a front curved surface portion that extends horizontally away from the front strap at the junction of the front strap extension and the front strap.