Rail Door Light Strip Mounting for Retrofit Status Indication
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Solution Overview
Problem
Existing light strip solutions for rail vehicle door leaves are complex to integrate and can cause goal conflicts with other safety-relevant functions, and require special design or modifications to the door leaf or window soffit, making them difficult to implement and retrofit.
Innovation Solution
A light strip device with a flexible, elongated body containing LEDs, housed in a holding and mounting profile that can be nondestructively detachably fastened to the window soffit of a rail vehicle door leaf, allowing for easy retrofitting without altering the door leaf or window soffit, and featuring light passage openings for directional light emission and optional transparency for uniform light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light sources are integrated into the closing edge or door leaf structure, then door status indication is achieved, but device complexity increases and conflicts with other safety functions
Solution Approach 1:
The light strip device is segmented into a separate modular unit that can be independently installed on the window soffit without integrating into the door leaf structure. This segmentation eliminates conflicts with other safety functions while maintaining effective door status indication.
Solution Approach 2:
The window soffit serves as an intermediary mounting surface between the light strip device and the door leaf. By using the window soffit as the mounting location rather than integrating directly into the door leaf, the device achieves its indication function without conflicting with other safety-relevant functions on the door leaf.
2Reliability
If light sources are integrated into the door leaf structure, then door status indication is achieved, but ease of manufacture decreases due to special design requirements
Solution Approach 1:
The light strip device is designed as a separate modular unit with its own holding and mounting profile, eliminating the need for special integration into the door leaf structure during manufacturing. This segmentation allows standard production processes for both the door leaf and the light strip device.
Solution Approach 2:
The holding and mounting profile is designed to be self-contained with integrated attachment means, allowing the light strip device to be installed without requiring modifications or special processing of the window soffit or door leaf structure.
3Stability of the object's composition
If light strip is permanently fixed to the door leaf, then stable mounting is achieved, but adaptability decreases for retrofit applications
Solution Approach 1:
The mounting system transitions from a permanent fixed connection to a detachable connection that provides both stability during operation and flexibility for installation/removal. The holding and mounting profile enables stable mounting during use while allowing easy detachment for retrofit or maintenance purposes.
Solution Approach 2:
The holding and mounting profile is designed with universal attachment means that can be applied to various window soffit configurations. This multi-functional design enables the same device to be installed on different door leaf types and facilitates both new installations and retrofit applications.
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
Enables simple and safe installation of light strips on rail vehicle door leaves, providing clear visual signals for door status without interfering with existing safety functions, and allowing for flexible adaptation to curved profiles, while maintaining a low risk of injury and enabling retrofits without modifying the door leaf or window soffit.
Implementation Method 1
the holding and mounting profile has at least one light passage opening in such a way that light generated by the light sources can penetrate through the light passage openings
Implementation Method 2
the holding and mounting profile is opaque with the exception of the light passage openings
Data Source
AI summary
A light strip device to be secured on or in a window jamb of a window opening of a door leaf of a rail vehicle boarding system in a nondestructively releasable manner, wherein the window opening has a window pane. The light strip device has at least: a) one light strip which is provided with a number of light sources arranged in a mutually spaced manner in rows, and b) one holding and installation profile in which the at least one light strip can be received and which is provided with an attachment to the window jamb, wherein c) the holding and installation profile has at least one light through-opening such that light generated by the light sources can penetrate the light through-openings, and the holding and installation profile is opaque with the exception of the light through-openings or d) the holding and installation profile is at least partly transparent.