Firearm Muzzle Mounting Device with Radial Locking Element

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Solution Overview

Problem

Existing firearm attachment systems are complex, requiring long threads for safe assembly and often involving multiple components, which complicates assembly, increases production costs, and poses safety risks due to improper operation.

Innovation Solution

A device comprising a sleeve, a mounting piece, and a horseshoe-shaped locking element that allows for quick and secure attachment to the muzzle end of a firearm, utilizing diametrical recesses and a self-centering mechanism for easy assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional threaded mounting is used for attachments, then secure mounting is guaranteed, but assembly becomes complex and time-consuming

Engineering Contradiction:
Improvesecure mountingVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting device is divided into three separate components: a sleeve that fits over the muzzle end, a mounting piece with threaded extension, and a horseshoe-shaped locking element. This segmentation allows each component to perform its specific function independently, simplifying assembly while maintaining secure mounting through the coordinated interaction of parts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking element is designed to be radially displaceable between closed and open positions. In the closed position, it engages with recesses to lock the attachment securely. In the open position, it allows for quick release. This dynamic capability enables both secure mounting and rapid assembly/disassembly without complex procedures.

Inventive Principle:
Principle #15Dynamics

2Reliability

If multiple components are used in mounting devices, then secure mounting is achieved, but production cost increases

Engineering Contradiction:
Improvesecure mountingVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By dividing the mounting device into three simple components, each part can be manufactured using basic machining processes. The sleeve, mounting piece, and locking element are all relatively simple geometries that can be produced cost-effectively, offsetting the benefit of having multiple components through manufacturing simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each component is designed with specific local features optimized for its function: the sleeve has an annular space and opening, the mounting piece has a threaded extension, and the locking element has inwardly directed ribs. These localized features are minimal and straightforward to manufacture, keeping production costs low while achieving secure mounting.

Inventive Principle:
Principle #3Local quality

3Reliability

If multiple components are used in mounting devices, then secure mounting is achieved, but assembly time increases

Engineering Contradiction:
Improvesecure mountingVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The radially displaceable locking element provides a simple locking mechanism that can be engaged and disengaged quickly. The inwardly directed ribs on the locking element snap into the recesses on the muzzle end for immediate locking, and can be easily released by moving the locking element radially outward, significantly reducing assembly and disassembly time compared to traditional threaded systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sleeve is designed with an opening that allows the locking element to be pre-positioned and engaged with the recesses before the mounting piece is fully screwed on. This preliminary locking action secures the attachment in place during assembly, preventing misalignment and ensuring proper positioning from the start.

Inventive Principle:
Principle #10Preliminary action

4Ease of operation

If traditional mounting devices are used, then attachments can be mounted, but rotation of the device is not prevented

Engineering Contradiction:
Improvemounting capabilityVSAvoidrotation prevention
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The horseshoe-shaped locking element with its inwardly directed ribs creates an asymmetric engagement with the recesses on the muzzle end. This asymmetric geometry provides not only axial locking but also prevents rotation of the attachment, as the ribs engage with the recesses in a way that resists rotational forces while maintaining ease of mounting.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP3867590B1Mounting device for a firearm
Publication Date: 2023.01.18 MDG MUZZLE DEVICES GMBH
  • EP3867590B1 patent drawingFigure 1
  • EP3867590B1 patent drawingFigure 2
  • EP3867590B1 patent drawingFigure 3a~3b

AI summary

The present invention relates to a device (1) for mounting an attachment (2) on the muzzle end (3) of a firearm, which attachment has at least two diametric recesses (10) in its outer circumference, the device comprising: a sleeve (5) which can be slid onto the muzzle end (3) and has an axial-normal opening (7); a mounting piece (11) which can be connected to the attachment (2) and has a tubular extension (12) which can be inserted into an annular space between the muzzle end (3) and the sleeve (5) and can be screw-fastened to the sleeve (5); and a locking element (6) which is radially displaceable in the opening (7) of the sleeve (5) between a closed position, in which its two legs (8) engage in one of the recesses (10) each with an inwardly directed rib (9), and an open position, which is released from the recesses (10). When the locking element (6) is in the closed position, end sections (15) of the legs (8) fit under the extension (12) inserted into the annular space.