Rail Vehicle Adjustable Floor for Platform Height Adaptation
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Solution Overview
Problem
Existing rail vehicles face challenges in accommodating different platform heights, particularly for passengers with reduced mobility, as they often require adjustable boarding areas that can match varying platform levels without compromising accessibility or requiring adjustments to other areas like toilets.
Innovation Solution
The rail vehicle features adjustable floor heights in the boarding and seating areas, with elevations that can be set or removed to match platform heights, while maintaining a low, constant floor level in the toilet area, and includes ramps for smooth transitions between areas, ensuring accessibility for wheelchair users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the floor height in the boarding area is adjusted to match different platform heights, then passenger accessibility and safety are improved, but the device complexity increases due to adjustable floor mechanisms
Solution Approach 1:
The floor structure is divided into separate elevation modules that can be independently adjusted. Each boarding area has its own floor elevation mechanism that can be set to different heights, allowing the system to adapt to various platform heights without requiring complex adjustments throughout the entire vehicle.
Solution Approach 2:
The floor elevation is applied locally only to the boarding area where it is needed for platform alignment, while other areas of the vehicle maintain their original floor heights. This localized approach enables platform height adaptation without unnecessarily complicating the overall floor structure of the vehicle.
2Productivity
If the floor height in the boarding area is elevated to match higher platforms, then boarding speed and safety are improved, but accessibility for wheelchair users deteriorates due to height differences
Solution Approach 1:
A ramp structure serves as an intermediary element between the elevated boarding area floor and the lower wheelchair seating area. The ramp provides a gradual transition that allows wheelchair users to access the elevated boarding area without encountering abrupt height changes, thus maintaining accessibility while enabling faster boarding for all passengers.
Solution Approach 2:
The ramp is designed to be movable or adjustable, allowing it to be deployed when wheelchair access is needed and retracted or stored when not required. This dynamic element enables the system to switch between optimized boarding speed and optimized wheelchair accessibility based on current needs.
3Adaptability or versatility
If the floor height is made adjustable for different platforms, then versatility across different routes is improved, but manufacturing complexity increases
Solution Approach 1:
The floor elevation system is constructed from modular, detachable components that can be assembled and disassembled relatively easily. This segmentation allows the elevation mechanisms to be manufactured as separate units and installed in the boarding area without requiring complex integration throughout the entire vehicle structure.
Solution Approach 2:
The floor elevation mechanism uses adjustable parameters such as variable height settings and reconfigurable support structures that can be adapted to different platform heights through simple parameter changes rather than requiring different physical components. This allows a single design to serve multiple platform height requirements.
4Ease of operation
If ramps are added for wheelchair transitions, then accessibility is improved, but device complexity and space requirements increase
Solution Approach 1:
The ramp is designed as a movable structure that can be deployed only when needed for wheelchair access and retracted or stored otherwise. This dynamic deployment reduces the ramp mechanism's impact on overall device complexity and minimizes space requirements when the ramp is not in use.
Solution Approach 2:
The ramp utilizes flexible or thin-profile construction that allows it to be stored in a compact form when not in use. This flexible design reduces the space required for ramp storage and minimizes the structural complexity compared to rigid, permanently installed ramp structures.
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates inter alia to a rail vehicle (10) comprising at least one boarding area (60) for passengers for boarding from and/or disembarking onto a platform, at least one restroom area (20) and at least one seating area (40). According to the invention, the floor in the seating area (40) and the floor in the boarding area (60) is raised or can at least be raised to a floor level (Hs, He) higher than the floor level (Ht) in the restroom area (20).