Firearm Sight Mount Magnetic Locking Mechanism

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Solution Overview

Problem

Existing sight mounts for firearms with high or very high trajectories are prone to slippage, misalignment, and difficulty in quick and secure adjustment, especially under stressful conditions, leading to inaccurate shooting due to complex range settings and sensitivity to external influences.

Innovation Solution

A sight mount with a base module and a pivotally mounted trajectory module, featuring an actuator for dialing shooting distances, a lock lever for secure positioning, and a graduated trajectory portion with recesses for precise adjustments, allowing for easy reading of distances from behind and accommodating spin-drift compensation with a curved design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a locking mechanism with a locking knob is used to secure the sight mount at various distances, then the sight mount can be adjusted to different shooting distances, but the locking mechanism may slip out of position or wear over time, causing unintentional movement and misalignment

Engineering Contradiction:
Improveadjustment of shooting distanceVSAvoidposition stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the traditional mechanical locking knob system with a magnetic field-based locking mechanism. The magnetic field is generated by a permanent magnet arranged in the trajectory module, which interacts with a ferromagnetic material in the base module to provide secure positioning at various shooting distances without the need for mechanical knobs that can wear or slip.

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

Solution Approach 2:

The patent changes the locking mechanism from mechanical (friction-based) to magnetic (field-based). This parameter change in the locking principle eliminates wear and slippage issues inherent in mechanical systems while maintaining the ability to securely hold multiple position settings.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If a complex locking mechanism is used to prevent slippage, then position stability improves, but the device complexity increases and quick adjustment becomes difficult

Engineering Contradiction:
Improveposition stabilityVSAvoidlocking mechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent eliminates complex mechanical locking components (knobs, notches, springs) by substituting them with a magnetic field-based system. The permanent magnet and ferromagnetic material combination provides inherent positioning and locking without requiring complex mechanical structures, thus simplifying the overall device while maintaining reliability.

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

3Measurement precision

If the sight mount is designed with precise adjustment capabilities for various distances, then measurement precision improves, but the ease of operation decreases due to the need for careful handling and reading

Engineering Contradiction:
Improveshooting distance settingVSAvoidquick adjustment
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The magnetic locking system allows the trajectory module to be freely adjusted to the desired position and then automatically locked by the magnetic field, eliminating the need for careful manual handling and reading of complex mechanical indicators. This provides both precise positioning and ease of operation.

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

Solution Approach 2:

The magnetic field-based locking mechanism is self-actuating - when the trajectory module is moved to a desired position, the magnetic field automatically engages the ferromagnetic material to lock it in place, without requiring additional user actions like turning knobs or pressing buttons. This enables quick and precise adjustment simultaneously.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2443411B1Sight mount
Publication Date: 2018.07.11 SPUHR I DALBY
  • EP2443411B1 patent drawingFigure 1A~1B
  • EP2443411B1 patent drawingFigure 1C~1D
  • EP2443411B1 patent drawingFigure 2A~2B

AI summary

A sight mount for firearms, comprising an elongate base module (101;201) adapted to be mounted on a firearm and an elongate trajectory module (104;204) in the form a frame pivotally connected to the base module (101;201). The trajectory module (104;204) is adapted to support at least one sight and to be pivoted between different biased positions upwards and downwards relative to the base module (101;201), corresponding to different shooting distances, wherein the trajectory module (104) is adapted to be releasably mounted on either side of the base module (101).