Firearm Accessory Mounting Device with Spring-Pretensioned Locking Spindle

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Solution Overview

Problem

Existing firearm mounting devices are complex, require multiple components, and often need tools for operation, with a high risk of unintentional opening and inadequate locking under dynamic forces.

Innovation Solution

A compact mounting device with a spring-pretensioned locking spindle and bearing knob system that allows tool-free operation, featuring a selector knob with a resting protrusion and locking protrusion for secure engagement with firearm guide elements, enabling easy and secure attachment of accessories.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complex clamping devices with multiple components are used, then reliable locking under dynamic forces is achieved, but device complexity and space requirements increase

Engineering Contradiction:
Improvelocking reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single integrated mounting device that attaches directly to the firearm receiver. The device integrates the clamping mechanism, locking system, and accessory mounting interface into one compact unit, eliminating the need for separate rails and multiple clamping components while maintaining reliable locking under dynamic forces.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mounting device is designed with universal applicability to fit various firearm receivers while providing multiple mounting positions for accessories. The device can accommodate different accessory types and allows for adjustable positioning, making it a multi-functional solution that replaces several specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If traditional screw connections are used, then secure attachment is achieved, but tool requirement and operation time increase

Engineering Contradiction:
Improveattachment securityVSAvoidtool-free operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces traditional screw connections with a cam-based mechanical locking system. The cam mechanism converts rotational motion into linear clamping force, securing the accessory to the firearm without requiring screws or external tools. This mechanical substitution maintains attachment security while enabling tool-free operation.

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

Solution Approach 2:

The mounting device uses a dynamic cam mechanism that allows for quick engagement and disengagement of the accessory. The cam can be rotated to alternately secure and release the accessory, providing a fast, tool-free operation while maintaining secure attachment during use.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If spring-loaded blocking elements are used, then automatic locking is achieved, but reliability under dynamic forces decreases

Engineering Contradiction:
Improveautomatic lockingVSAvoidblocking reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent incorporates a spring mechanism that automatically applies preliminary clamping force when the mounting device is engaged with the firearm receiver. This preliminary action ensures the accessory is securely positioned before the user activates the cam locking mechanism, providing both automatic locking assistance and reliable holding under dynamic conditions.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a simple, space-saving, and reliable mounting system that self-locks automatically, reducing the risk of accidental opening and ensuring secure attachment of accessories even under dynamic conditions.

Implementation Method 1

a spring (7) arranged between the device housing (5) and the bearing knob (16) and serving to pretension the locking spindle (10) in the direction of the bearing knob (16)

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

the locking spindle (10) having at least one locking protrusion (15) which, in a locking position, contacts a guide element (3) of a firearm in the region of a recess (4)

Methodology Applied
Scientific EffectMechanical engagement: Mechanical Fastener

Data Source

PatentUS12007202B2Mounting device for weapon accessories
Publication Date: 2024.06.11 GLOCK TECH
  • US12007202B2 patent drawing
  • US12007202B2 patent drawing
  • US12007202B2 patent drawing

AI summary

Mounting device for accessories of a firearm, and accessories with such integrated mounting devices, the firearm having guide elements with a recess, where the mounting device has at least one bearing knob and at least one locking spindle configured to cooperate with the bearing knob and the at least one recess. The at least one locking spindle has a selector knob with a resting protrusion, a connection piece and a center part on which at least one locking protrusion is formed. The locking spindle is rotatably and/or longitudinally displaceable in the device housing and is arranged to interact with the bearing knob and the spring.