Rail Vehicle Sliding Door Guide Rail Positioning Means
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Solution Overview
Problem
Existing rail vehicle interior sliding door systems require complex and time-consuming adjustment processes due to unavoidable tolerances in the car body, necessitating precise gap adjustments between the door leaf and paneling, which is both labor-intensive and safety-critical.
Innovation Solution
A rail vehicle interior sliding door system utilizing a lower and upper guide rail with integrated positioning means, allowing for precise panel positioning without direct attachment to the car body, and an assembly jig that facilitates the installation of these guide rails relative to each other, eliminating the need for measuring and adjustment work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If panels are directly attached to the car body to accommodate tolerances, then adaptability to car body variations is improved, but installation time and adjustment complexity increase significantly
Solution Approach 1:
The system segments the door assembly into modular components: guide rails with integrated positioning means, panels, and door leaves. The guide rails are pre-positioned with positioning means that specify exact locations for panels and door leaves, eliminating the need for on-site adjustment of each component. This segmentation allows the complex positioning task to be distributed and pre-solved in manufacturing rather than during installation.
Solution Approach 2:
The positioning means are pre-integrated into the guide rails during manufacturing, establishing the exact positions for panels and door leaves before installation. This preliminary action of pre-positioning eliminates the need for time-consuming measurement and adjustment work during installation, as components are designed to fit precisely based on pre-calculated positions that accommodate car body tolerances.
2Manufacturing precision
If multiple components (panels, door leaves, guide rails) are precisely positioned during installation, then gap precision between door leaf and panels is improved, but adjustment complexity and labor intensity increase
Solution Approach 1:
The positioning means are merged directly into the guide rails, combining the functions of support, positioning, and alignment into a single integrated component. This merging eliminates the need for separate adjustment mechanisms and procedures for each component, reducing adjustment complexity while maintaining precise gap specification between the door leaf and panels.
3Stability of the object's composition
If panels are attached directly to the car body, then structural stability is improved, but installation flexibility and ease of assembly are reduced
Solution Approach 1:
The guide rails serve as intermediary components between the car body and the panels/door leaves. These guide rails are attached to the car body and provide standardized positioning means that facilitate the attachment of panels and door leaves. This intermediary structure maintains structural stability while dramatically simplifying installation, as workers only need to attach components to the pre-positioned guide rails rather than directly to the car body.
Data Source
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AI summary
Sliding door system for rail vehicles, comprising a lower guide rail (100), an upper guide rail (200), at least one door leaf (400) mounted slidably between the guide rails (100, 200), and coverings (500), wherein the coverings (500) are fastened between the upper guide rail (200) and the lower guide rail (100)and the upper guide rail (200) and the lower guide rail (100) comprise positioning means for the exact positioning of the coverings (500).