Weapon Profile Rail Mount with Oblique Guide Slots

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Solution Overview

Problem

Existing fastening systems for attaching additional devices to profile rails on weapons are cumbersome and often require additional tools, leading to complex and rigid assemblies that can compromise aiming accuracy, especially when open sights are obstructed by telescopic sights.

Innovation Solution

A connection piece with obliquely oriented guide slots and spring-loaded holding elements that allow easy adjustment and secure fixation to profile rails, enabling quick installation and removal without additional tools, and accommodating various types of weapons and sighting devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional fastening systems are used to attach additional devices to profile rails, then secure fixation is achieved, but the assembly becomes complex and requires additional tools for installation and removal

Engineering Contradiction:
ImproveEase of installation and removalVSAvoidComplexity of fastening system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The connection piece is designed to be self-installing and self-locking. The holding elements automatically engage with the profile rail when the connection piece is placed on it, and the spring mechanism provides automatic locking without requiring additional tools or complex assembly procedures. The system serves itself by using the insertion motion to compress the spring and activate the locking mechanism.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention combines multiple functions into a single integrated connection piece: the holding elements for attachment, the spring mechanism for locking, and the release mechanism for removal are all merged into one compact unit. This eliminates the need for separate fastening components and reduces overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If additional devices are permanently mounted on weapons using screw mechanisms, then secure attachment is achieved, but aiming accuracy is compromised when open sights are obstructed by telescopic sights

Engineering Contradiction:
ImproveAbility to switch between open sights and telescopic sightsVSAvoidAiming accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The connection piece is designed with a quick-release mechanism that allows dynamic switching between different sighting configurations. The holding elements can be rapidly engaged and disengaged, enabling the user to switch between open sights and telescopic sights as needed, rather than being locked into a permanent mounting configuration.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If spring-loaded holding elements are used for quick release, then ease of removal is achieved, but reliability of secure fixation may be compromised

Engineering Contradiction:
ImproveEase of removalVSAvoidReliability of secure fixation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The release function is extracted as a separate, dedicated mechanism distinct from the locking function. The release element directly acts on the spring mechanism to overcome the holding force, providing a clear and unambiguous removal action that prevents accidental disengagement while maintaining easy intentional release.

Inventive Principle:
Principle #2Taking out (Extraction)

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 connection piece provides a secure, easy-to-install, and adjustable fastening solution that maintains aiming accuracy by allowing easy attachment and removal of additional devices without obstructing open sights, ensuring precise alignment and stability.

Implementation Method 1

at least one spring element (13) acting between the first holding element (3) and the second holding element (5) and designed to push the holding elements (3, 5) into the engaged position

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2122292B1Connecting piece and connecting piece comprising a sight
Publication Date: 2012.05.30 HECKLER & KOCH GMBH
  • EP2122292B1 patent drawingFigure 1
  • EP2122292B1 patent drawingFigure 2
  • EP2122292B1 patent drawingFigure 3

AI summary

The invention relates to a connecting piece (1) for fixing on a profiled rail (19), comprising retaining elements (3; 5) that can be moved between a working and a release position, said elements engaging with corresponding receiving regions (22;24) of the profiled rail (19) releasing the connecting piece (1) in the release position. The retaining elements (3; 5) are coupled by means of a guide slot (41), which is designed in such a way that when the retaining elements (3;5) are displaced in the longitudinal direction of the profiled rail (19), said elements are also moved obliquely, following the course of the slot. The invention also relates to a connecting piece (1) comprising a sight (57;104) with an adjustment element (69;75), which can be moved in opposition to a spring force from a sight position into an adjustment position, said adjustment element (69; 75) being releasably fixed in the sight position in relation to the sight (57; 104) by means of a detent mechanism and can be moved into various sight positions in the adjustment position. The invention further relates to a second connecting piece (1) comprising a second sight (104) that can be mounted directly on the hand guard (109) of a weapon (105) and can be pivoted about a pivoting element (125) from an unused position into a working position, said second sight (104) having a safety element (165) that fixes the sight (104) in the working position against a stop (171), transversely to the axis of the bore.