U-Shaped Stiffening Element for Rail Vehicle Ceiling Panels
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Solution Overview
Problem
Existing methods for assembling ceiling panels in rail vehicles require multiple components, including stiffening ribs and H-profiles, which increases complexity and component count.
Innovation Solution
A stiffening element designed as an elongated bent sheet metal part with a U-shaped cross section, featuring filling holes for adhesive and beads for a connecting spring, allowing for dual functionality in stiffening and connecting panels without specific alignment requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple components (stiffening ribs and H-profiles) are used to assemble ceiling panels, then the structural function is achieved, but the number of components and assembly complexity increases
Solution Approach 1:
The patent combines the stiffening rib and H-profile into a single integrated component. The U-shaped cross-section provides both the stiffening function (through the vertical legs) and the connection function (through the horizontal base that spans between panels), eliminating the need for separate components and reducing assembly complexity
Solution Approach 2:
The single component performs multiple functions simultaneously: it provides structural stiffening for the ceiling panels and serves as the connecting element between adjacent panels. This multi-functional design replaces the need for separate stiffening ribs and H-profiles, directly addressing the contradiction between structural adequacy and component reduction
2Strength
If adhesive is applied for bonding ceiling panels, then panel connection is achieved, but adhesive misalignment and waste occur without proper guidance structures
Solution Approach 1:
The horizontal base of the U-shaped component acts as an intermediary structure that guides adhesive application. The base provides a defined surface and geometric reference that ensures adhesive is applied at the correct location and orientation, preventing misalignment and reducing waste while maintaining strong bonding between panels
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
Reduces the number of assembly components needed by enabling a single stiffening element to both stiffen and connect adjacent panels efficiently, with excess adhesive accommodated in the beads, simplifying the assembly process.
Implementation Method 1
excess adhesive being able to be accommodated in the bead provided
Implementation Method 2
adhesive supplied through the filling bores initially flows directly into the contact area between the cladding panel and the stiffening element
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a reinforcing element (1) for a trim panel (2), wherein the reinforcing element (1) is designed as an elongate sheet-metal bent part having a substantially U-shaped cross section, pour-in holes (8) along the central longitudinal section (7) thereof for adhesive and, to the side of the central longitudinal section (7), a bead (9, 10) which runs in the longitudinal direction of the reinforcing element (1), springs back from the central longitudinal section (7) and is designed for the insertion of a connecting spring (11) to an adjacent trim panel (2).