Rail Vehicle Floor Support Element With Modular C-Profile
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Solution Overview
Problem
Existing rail vehicle floor structures are limited in their ability to absorb lateral load changes and allow for variable seating arrangements, often requiring cover rails that disrupt the continuity of the floor covering.
Innovation Solution
A floor structure featuring support elements with laterally outward-facing attachment surfaces for first floor panels and second floorboards that cover the support elements, allowing for adjustable seating configurations without the need for additional attachment to the side wall and enabling a continuous floor covering without visible cover profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If rigid longitudinal beams are used to support floor panels and fasten seat feet, then structural stability is improved, but the ability to absorb lateral load changes is limited
Solution Approach 1:
The floor construction is segmented into modular components: longitudinal girders provide structural stability while transverse floor panels and seat foot attachments are separate modules that can be independently positioned and adjusted, allowing the system to accommodate lateral load variations without compromising overall stability
Solution Approach 2:
The system incorporates dynamic adjustment capabilities through movable floor panels and adjustable seat foot attachments on the longitudinal girders, enabling the structure to adapt to changing lateral loads from different seating configurations while maintaining structural integrity
2Shape
If floor panels are continuously arranged to cover the support element, then a uniform floor surface is achieved, but access to the support element for fastening foot brackets is blocked
Solution Approach 1:
The floor panels are designed to be removable or open in specific sections where seat feet need to be attached to the longitudinal girders, extracting the floor covering from the support element area to allow access while maintaining uniform coverage in other areas
Solution Approach 2:
Attachment mechanisms or intermediary components are provided that allow floor panels to be temporarily removed or opened during installation and adjustment of foot brackets, then restored to maintain the uniform floor surface appearance during normal operation
3Reliability
If cover rails are used to cover transitions in the floor covering, then the support element is protected, but the floor covering continuity is disrupted
Solution Approach 1:
The support element and floor covering are merged into an integrated design where the longitudinal girders are structurally integrated with the floor panels, eliminating the need for separate cover rails and maintaining continuous floor covering appearance while providing adequate protection
Data Source
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AI summary
A support element, fixed to the car body shell of a rail vehicle, is proposed for constructing the floor of a rail vehicle. At least two C-profiles (130, 132), extending longitudinally along the support element (100) and spaced apart transversely, serve to attach footrests for passenger seats. At least one cable duct (120), open on one side, runs longitudinally between the C-profiles (130, 132) along the support element (100). In the assembled state, the footrests are supported on bearing surfaces (131) of the C-profiles (130, 132).