Rail Fitting Fastener With Rotating Anchor and Radial Toothing
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Solution Overview
Problem
Existing fastening systems for vehicles, such as aircraft, are not sufficiently rapid, precise, and flexible for mounting fittings to rails without compromising force transmission between the vehicle structure and fittings.
Innovation Solution
A fastening system comprising a supporting element with radial toothing and an elongate anchoring element with a form-fitting means, allowing for variable positioning and rotation to create a secure, form-fitting connection with the rail, enabling flexible and loadable attachment without fixed fastening points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional fastening systems are used to mount fittings to rails in vehicles, then the mounting can be performed with fixed fastening points, but the process is time-consuming and lacks flexibility
Solution Approach 1:
The anchoring element is designed to be rotatable relative to the supporting element, transitioning from an insertion position to a locked rotational position. This dynamic mechanism allows the fastening system to adapt to different positioning requirements while maintaining secure attachment, resolving the contradiction between quick mounting and flexible positioning.
Solution Approach 2:
The fastening system is divided into separate components: a supporting element with radial toothing and an anchoring element with form-fitting means. This segmentation allows independent positioning and rotation of the anchoring element, enabling rapid mounting while providing flexibility to accommodate varying rail features and manufacturing tolerances.
2Reliability
If fixed fastening points are used on the rail, then the connection is stable, but the system cannot accommodate varying rail features and manufacturing tolerances
Solution Approach 1:
The system allows the anchoring element to be rotated to different angular positions, changing the orientation parameter to accommodate varying rail features and manufacturing tolerances. The radial toothing engagement provides multiple possible engagement points, ensuring reliable connection while adapting to rail variations.
Solution Approach 2:
The supporting element with radial toothing and rotatable anchoring element creates a universal fastening mechanism that can accommodate different rail configurations, manufacturing tolerances, and fitting positions. The form-fitting means engages with the rail undercut in a manner that adapts to various rail geometries while maintaining stable connection.
3Productivity
If a simple plug-in connection is used, then the mounting is rapid, but the force transmission between vehicle structure and fittings is insufficient
Solution Approach 1:
The rotatable anchoring element transitions from a simple plug-in state to a locked rotational position where radial toothing engages. This dynamic transformation maintains rapid mounting while significantly increasing force transmission capability through the engaged toothing mechanism.
Solution Approach 2:
The combination of form-fitting means engaging the rail undercut and radial toothing engaging between supporting and anchoring elements creates a composite connection system. This composite structure provides both rapid installation and high force transmission capability by distributing loads across multiple engagement points.
4Reliability
If radial toothing engagement is implemented, then the connection is secure, but the device complexity increases
Solution Approach 1:
The radial toothing is integrated directly into the supporting element and anchoring element structures, merging the fastening function with the basic component geometry. This reduces the need for separate fastening components while maintaining secure connection through the toothing engagement.
Data Source
AI summary
A fastening system for fastening fittings to a rail has a supporting element, an opening, and a first radial toothing in an interior space adjoining the opening. The system also has an anchoring element having a second radial toothing. The opening of the supporting element and the first radial toothing are configured in a corresponding manner to the anchoring element such that the anchoring element, in a first rotational position, can be introduced without resistance into the opening and, in a second rotational position, produces an engagement between the first radial toothing and the second radial toothing. At least one form-fitting means is arranged at a first end of the anchoring element and can be introduced into an opening contour of a rail, for producing and releasing a form-fitting connection to an undercut of a rail.