Colored Door Seal for Rail Vehicle Visibility
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Solution Overview
Problem
Rail vehicle doors are difficult for passengers to identify and open, especially in poor visibility conditions, due to a lack of distinct markings that can withstand harsh operating conditions and maintain durability.
Innovation Solution
A door module with a door seal that is colored using specific HSB color model values, providing high lightness and contrast with the door leaf, making the door easily recognizable without additional labeling efforts, and ensuring durability through uniform coloring and suitable materials like silicone rubber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If adhesive foils are used to mark the doors, then the doors become more visible and identifiable, but the markings are not robust and do not withstand harsh operating conditions for very long
Solution Approach 1:
The door seal is merged with the identification marking function. The seal, which is already required for sealing the door gap, is now also colored to serve as the identification marking, eliminating the need for separate adhesive foils or labels.
Solution Approach 2:
The door seal performs multiple functions: sealing the gap between door and body, protecting the door edge, and serving as a visible identification marking. This multi-functionality eliminates the need for additional marking components that would compromise durability.
2Difficulty of detecting and measuring
If adhesive foils are used to mark the doors, then the doors become more visible and identifiable, but additional marking efforts and materials are required
Solution Approach 1:
The door seal is merged with the identification marking function. The seal, which is already required for sealing the door gap, is now also colored to serve as the identification marking, eliminating the need for separate adhesive foils or labels.
Solution Approach 2:
The door seal performs multiple functions: sealing the gap between door and body, protecting the door edge, and serving as a visible identification marking. This multi-functionality eliminates the need for additional marking components that would compromise durability.
3Shape
If the door seal is made inconspicuous and hidden behind folds, then the homogeneous surface appearance is maintained, but the door becomes difficult to identify
Solution Approach 1:
The door seal is colored with high color saturation (≥ 0.5) to create a conspicuous appearance that contrasts with the homogeneous vehicle surface. This color change allows the seal to serve as an effective identification marking while maintaining its sealing function.
Solution Approach 2:
The door seal has different properties in different areas: in the folded region it maintains sealing contact, while in the visible outer region it has high color saturation to provide identification. This local differentiation allows both homogeneous appearance and door visibility.
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to a door module (30, 31) for a rail vehicle (1), comprising a door leaf (40..44) and a door seal (50..54), wherein the door seal (50..54) is arranged at the edge of the door leaf (40..44) and is at least partially visible from the outside (A) when the door leaf (40..44) is closed. The door seal (50..54) is colored, at least in the aforementioned visible area, either white or colored with a color saturation of ≥ 0% to < 20% and a brightness of ≥ 80%, with a color saturation of ≥ 20% to < 40% and a brightness of ≥ 60%, or with a color saturation of ≥ 40% and a brightness of ≥ 40%, wherein the values are specifically based on an HSB color model. Furthermore, the invention relates to a rail vehicle (1) with such a door module (30, 31).