Handguard Assembly Barrel Positioning Mechanism

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Solution Overview

Problem

Handguards for AR-15 style rifles increase firearm weight, affecting maneuverability and aiming precision, and often require manual alignment of sights, which can be cumbersome and imprecise.

Innovation Solution

A handguard assembly comprising an upper and lower component with tabs and slots that automatically position the barrel to align the sights, ensuring the firearm is zeroed when the handguard is attached, using a unique interlocking mechanism with angled components and screws to secure the assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a handguard is attached to the firearm, then protection and grip are provided, but the firearm weight increases

Engineering Contradiction:

Improvebarrel heat protectionVSAvoidfirearm weight

Core Design Contradiction:

Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

The handguard is divided into multiple modular sections that can be attached or removed independently. This segmentation allows users to have protection when needed while reducing weight during maneuvers by removing unnecessary sections.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The handguard system transitions from a static, fixed-weight component to a dynamic, adjustable configuration. Users can adapt the handguard assembly by adding or removing sections based on operational requirements, making the weight characteristic variable rather than fixed.

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If a handguard is attached to the firearm, then protection and grip are provided, but maneuverability is hindered

Engineering Contradiction:

Improvebarrel heat protectionVSAvoidmaneuverability

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The modular handguard sections can be quickly removed or adjusted, allowing the firearm to transition between a protected configuration for stationary use and a streamlined configuration for maneuvering, thus reducing the hindrance to mobility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The handguard system becomes dynamically adjustable, allowing users to optimize between protection and maneuverability by reconfiguring the handguard sections based on the immediate operational context.

Inventive Principle:

Principle #15Dynamics

3Object-affected harmful factors

If a handguard is attached to the firearm, then protection and grip are provided, but aiming precision is affected

Engineering Contradiction:

Improvebarrel heat protectionVSAvoidaiming precision

Core Design Contradiction:

Object-affected harmful factorsVSMeasurement precision

Solution Approach 1:

The modular handguard allows for precise positioning of optical components and sights on specific sections, enabling accurate alignment and calibration that maintains aiming precision while providing necessary protection.

Inventive Principle:

Principle #1Segmentation

4Ease of operation

If manual alignment of sights is performed, then sighting adjustment is possible, but the process is cumbersome and time-consuming

Engineering Contradiction:

Improvesight adjustment capabilityVSAvoidsight alignment time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The handguard is pre-configured with built-in alignment features and reference marks during manufacturing. These preliminary preparations eliminate the need for time-consuming manual alignment procedures, as users can quickly zero the sights by following the pre-established reference system.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The handguard incorporates self-aligning mechanisms that automatically guide the sights into proper alignment through mechanical reference features, reducing or eliminating the need for manual adjustment and allowing the system to self-zero.

Inventive Principle:

Principle #25Self-service

5Ease of operation

If manual alignment of sights is performed, then sighting adjustment is possible, but firing accuracy is reduced

Engineering Contradiction:

Improvesight adjustment capabilityVSAvoidfiring accuracy

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11226169B2Handguard assembly

Publication Date: 2022.01.18 LESLIE JIMI

AI summary

A handguard assembly for attaching to a firearm is disclosed. The handguard assembly comprises an upper component, a lower component, a front cap, and a rear cap. The front cap and rear cap are secured within the lower component. The front cap and rear cap have curved top sides for supporting the barrel of the firearm. The lower component has slots in the sides to receive tabs from the sides of the upper component. When the upper component and lower component are attached to the firearm, the components work together to position the barrel in the preferred position so that the sights of the firearm are zeroed when the handguard assembly is attached to the firearm.