Firearm Rear Sight Assembly with Click-Adjust Elevation Screw

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Solution Overview

Problem

Adjusting the point of impact for a handgun shooter is traditionally complex and requires skill, making it difficult for consumers to do without a gunsmith's assistance.

Innovation Solution

An adjustable rear sight assembly for firearms, comprising a sight base, sight blade, tension member, elevation screw, and fasteners, which allows for precise adjustments to the sight blade's position using a dovetail system and audible 'click' indicators for precise movement measurements, ensuring the sight remains securely attached during operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional adjustable rear sight methods are used, then the sight can be adjusted for point of impact, but the process is complex and requires specialized skill

Engineering Contradiction:
Improveease of sight adjustmentVSAvoidcomplexity of adjustment process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The rear sight assembly is divided into separate functional components: a sight base mounted to the firearm, a sight blade for alignment, a tension member for securing, and an elevation screw for adjustment. This segmentation allows each component to perform its specific function independently, making the overall system easier to understand and operate while maintaining precision

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elevation screw is designed to engage with notches in the sight blade, allowing the user to make adjustments by simply rotating the screw. The mechanical interaction between the screw and notches provides inherent positioning feedback, enabling self-service adjustment without requiring specialized tools or expertise

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If the sight blade is made adjustable, then point of impact alignment is improved, but the risk of detachment during operation increases

Engineering Contradiction:
Improveadjustability of sight bladeVSAvoidsecurity of sight attachment
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The tension member is designed to be compressible, allowing it to dynamically adapt to the forces generated during firearm operation. The compression member can compress under stress and then spring back, maintaining continuous contact with the sight blade while accommodating operational movements, thereby preventing detachment without compromising adjustability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tension member is pre-compressed during assembly to establish immediate engagement with the sight blade. This preliminary compression ensures that the sight blade is securely held in position before any operational forces are applied, preventing detachment while allowing for subsequent adjustment

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If precise adjustment measurements are implemented, then measurement precision is improved, but the device complexity increases

Engineering Contradiction:
Improveprecision of movement measurementVSAvoidcomplexity of measurement system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The measurement system replaces complex mechanical measurement mechanisms with a simple angular displacement system. The elevation screw rotates within a range of motion, and the notches provide discrete angular positions that correspond to specific adjustments. This substitution of continuous mechanical measurement with discrete angular positioning maintains precision while significantly reducing system complexity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12123680B2Rear sight assembly for a firearm
Publication Date: 2024.10.22 WILSONS GUN SHOP INC
  • US12123680B2 patent drawing
  • US12123680B2 patent drawing
  • US12123680B2 patent drawing

AI summary

A rear sight assembly for a firearm is disclosed. The rear sight assembly contain a sight base coupled with the firearm, a sight blade pivotally coupled with the sight base and a tension member positioned between the sight base and the sight blade and configured to push the sight blade against the firearm.