Quick Disconnect Rail Mount with Cam Adjustment

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Solution Overview

Problem

Firearms rails have varying tolerances and geometries, making it challenging to develop apparatuses and methodologies that can effectively compensate for these differences, leading to compatibility issues with accessories.

Innovation Solution

A quick disconnect apparatus comprising a base member, accessory clamp member, rail clamp member, adjustment member, support bar, cam member, pivot pin, relief plate, and biasing members, which allows for selective coupling and adjustment to accommodate different rail geometries through a dove-tail-receiving passage and cam surface engagement, enabling secure attachment of accessories to firearms with varying rail configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a fixed-geometry clamp member is used to attach accessories to rails, then the manufacturing and operation are simplified, but the adaptability to different rail geometries and tolerances deteriorates

Engineering Contradiction:
Improvesimplicity of attachment operationVSAvoidcompatibility with different rail geometries
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The clamp member incorporates an adjustable geometry mechanism that allows the clamping surface to dynamically adapt to different rail geometries. The adjustment member enables the clamp member to change its geometric configuration to match various rail profiles, resolving the contradiction between operational simplicity and geometric adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The apparatus allows changes in geometric parameters of the clamp member through the adjustment member. By modifying the angle and position of the clamping surface, the system can accommodate different rail tolerances and geometries while maintaining simple attachment operations.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a adjustable clamp member is used to accommodate different rail geometries, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Improvecompatibility with different rail geometriesVSAvoidnumber of adjustment components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clamp member is segmented into adjustable sections that can be independently positioned. This segmentation allows the complex adaptation function to be divided into simpler modular adjustments, reducing overall device complexity while maintaining high adaptability to different rail geometries.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adjustment member serves multiple functions: it adjusts the clamp member's geometry, positions the clamping surface, and compensates for rail tolerances. This multi-functionality reduces the need for separate components, thereby managing device complexity while achieving broad adaptability.

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

3Adaptability or versatility

If a cam member with cam surface is used to provide adjustable clamping force, then the adaptability to different rail geometries improves, but the device complexity increases

Engineering Contradiction:
Improveadjustability of clamping forceVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cam member utilizes the natural cam mechanism to automatically generate adjustable clamping force as the clamp member is positioned. The cam surface geometry itself provides the force adjustment, eliminating the need for separate force-adjustment mechanisms and reducing overall device complexity while maintaining adaptability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS8397421B2Quick disconnect apparatus, assembly and method for utilizing the same
Publication Date: 2013.03.19 LEAPERS INC
  • US8397421B2 patent drawing
  • US8397421B2 patent drawing
  • US8397421B2 patent drawing

AI summary

A quick disconnect apparatus is disclosed. The quick disconnect apparatus includes a base member, a rail clamp member and a rail clamp adjustment device. The base member includes at least one passage. The rail clamp member includes a support bar receiving passage. The rail clamp member is movably-coupled to the base member. The rail clamp adjustment device is coupled to at least one of the base member and rail clamp member. The rail clamp adjustment device includes a pivot pin, a cam member including at least one offset passage and a support bar including a pivot-pin receiving passage. The support bar is inserted through the support bar receiving passage of the rail clamp member and a passage of the at least one passage of the base member to movably-couple the rail clamp member with the base member. The pivot pin is inserted through the at least one offset passage of the cam member and the pivot-pin receiving passage of the support bar to rotatably-couple the cam member relative the support bar. The cam member includes at least one cam surface. The rail clamp member includes an outer surface. The at least one cam surface engages the outer surface of the rail clamp member.