Rail Fastening Device with Angled Guide Elements
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Solution Overview
Problem
Existing rail fastening systems in switch areas and slab tracks require complex and costly assembly processes due to the need for multiple screws and intricate profiling, which increases installation effort and cost.
Innovation Solution
A rail fastening device featuring angled guide elements, support elements, and a base unit with integrated screw bolts and projections that allow for preassembly on the rail or switch, reducing the need for additional screws and simplifying the attachment to the substructure by using a clip mechanism or countersunk screws for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple screws and intricate profiling are used for rail fastening in switch areas and slab tracks, then the fastening system achieves secure attachment and precise positioning, but the installation effort and cost increase significantly
Solution Approach 1:
The fastening device is divided into distinct functional components: a base unit with integrated screw bolts for substructure attachment, angled guide elements for rail positioning, and support elements for structural stability. This segmentation allows each component to be optimized independently and facilitates easier assembly by reducing the complexity of integrating multiple functions into a single complex structure.
Solution Approach 2:
The base unit integrates multiple functions that were previously separate: screw bolts for anchoring, angled guide elements for positioning, and support elements for stabilization are combined into a single integrated assembly. This merging reduces the number of separate components that need to be handled and installed individually, thereby reducing installation effort while maintaining secure attachment.
2Manufacturing precision
If multiple screws and intricate profiling are used for rail fastening, then precise positioning and stable rail mounting are achieved, but the device complexity and cost increase
Solution Approach 1:
The base unit serves multiple functions simultaneously: it provides anchoring through integrated screw bolts, positioning through angled guide elements, and structural support through support elements. This multi-functionality reduces the need for separate components for each function, thereby reducing device complexity while maintaining precise positioning capabilities.
Solution Approach 2:
The angled guide elements and support elements are pre-integrated with the base unit in a predetermined configuration that ensures precise positioning when installed. This preliminary arrangement of components eliminates the need for complex on-site adjustments and profiling, reducing both device complexity and installation complexity while maintaining manufacturing precision.
3Stability of the object's composition
If four sleeper screws with spring rings and screw anchors are used at each fastening point, then the rail fastening achieves high stability, but the assembly becomes very expensive
Solution Approach 1:
Multiple fastening functions are merged into the base unit: the integrated screw bolts provide anchoring, while the angled guide elements and support elements provide positioning and stabilization. This consolidation reduces the total number of separate fastening components needed while maintaining fastening stability through the coordinated action of the integrated elements.
Solution Approach 2:
The base unit with integrated components serves multiple fastening functions simultaneously: anchoring, positioning, and stabilizing. This multi-functionality reduces the quantity of separate screws and anchors needed while maintaining fastening stability through the combined effect of the integrated elements working together as a unified system.
Data Source
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AI summary
The invention relates to a device for mounting railroad tracks (22) on a substructure (20; 20a, 20b), comprising two angle guide elements (30; 30a, 30b) disposed on both sides of the rail foot (22a) for each mounting point, and one support element (28) on the side facing away from the rail foot (22a) of each angle guide element (30; 30a, 30b), and a support unit (26) disposed beneath the angle guide element (30; 30a, 30b) and support elements (28) of the mounting point and comprising two threaded bolts (42) for tightening rail clamps (32), disposed such that they extend through openings in the angle guide plates (30; 30a, 30b) in the installed state.