Modular Seat Support Assembly for Fast Rail Vehicle Installation
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Solution Overview
Problem
Existing support devices for road-rail vehicles are complex, laborious to assemble, and costly, requiring long installation times, while maintaining stability and safety for passenger seats.
Innovation Solution
A support device with modular, removably coupled elements, including a first support element and attachment elements, allows for easy assembly and disassembly, using snap-in or bayonet coupling, and is designed for quick installation by non-expert personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid enbloc support device is used, then stability and safety are improved, but assembly complexity and installation time increase
Solution Approach 1:
The support device is divided into multiple separable components: a first support element that attaches to the seat, a second support element, and a connection element that joins them. This segmentation allows each component to be manufactured and assembled independently, reducing overall assembly complexity while maintaining the structural integrity and stability of the complete support device.
2Reliability
If a rigid enbloc support device is used, then stability and safety are improved, but installation time and cost increase
Solution Approach 1:
By segmenting the support device into modular components with standardized connection interfaces, the installation process can be performed in discrete steps using simple tools. The connection element features a bayonet-style coupling mechanism that enables quick attachment and detachment, dramatically reducing installation time compared to rigid enbloc devices that require complex welding or bolting operations.
Solution Approach 2:
The support device transitions from a static rigid structure to a dynamic modular system where components can be easily assembled and disassembled. The connection element allows for reversible coupling that maintains structural stability when assembled while enabling rapid installation and removal, thus reducing installation time without compromising reliability.
3Ease of operation
If a modular support device with removable coupling is used, then ease of assembly is improved, but device complexity increases
Solution Approach 1:
The connection element serves as an intermediary component that simplifies the coupling between the first and second support elements. It features a bayonet-style interface with a coupling body and receiving cavity that guide the assembly process, allowing workers to connect components through a simple rotational motion rather than complex alignment procedures. This intermediary element masks the underlying complexity while providing ease of assembly.
4Ease of operation
If a modular support device with removable coupling is used, then ease of disassembly is improved, but structural integrity may be compromised
Solution Approach 1:
The connection element employs a bayonet-style coupling mechanism that provides dynamic coupling characteristics: when assembled, the interlocking geometry and friction forces create a rigid connection sufficient to support seat loads and maintain structural integrity; when force is applied to disassemble, the same mechanism allows for easy detachment. This dynamic behavior enables the system to switch between requiring strength during operation and allowing easy disassembly during maintenance or relocation.
Data Source
Figure 1~3
AI summary
Support device (10) for supporting one or more seats (100) of a road-rail vehicle for public transport having a floor (101) and at least one wall (102) substantially perpendicular thereto, wherein each seat (100) has a load-bearing structure (103). The support device (10) comprises a first support element (11) configured to be disposed substantially horizontal under the load-bearing structure (103) of each seat (100) to support it, and to be associated cantilevered with the wall (102) at a certain distance (D) from the floor (101).