Modular Car Body Stabilizing Elements for Retrofitting
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Solution Overview
Problem
Existing rail vehicle car body shells lack flexibility in adapting to changing usage requirements, as the fixed stabilizing elements for doors and windows restrict interior design and require significant effort to reconfigure, limiting the ability to convert between different functional sections.
Innovation Solution
A car body shell design with modular stabilizing elements that can be functionally adapted to change between door and window modules without replacing the entire structure, allowing for the conversion of window pillars into door pillars and vice versa, reducing the need for permanent door pillars and enhancing interior flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fixed stabilizing elements (door pillars) are provided for potential door sections, then the structural strength for door installation is ensured, but the interior design freedom is restricted and conversion effort increases
Solution Approach 1:
The stabilizing elements are divided into a first stabilizing element that forms part of the functional section and a second stabilizing element that is separate therefrom. This segmentation allows the second element to be selectively positioned or removed based on whether a door module is installed, providing structural support when needed while maintaining interior design freedom when doors are not present.
Solution Approach 2:
The configuration of stabilizing elements is made dynamic rather than fixed. The second stabilizing element can be adaptively positioned or removed depending on the functional requirements, allowing the structure to transition between different states (door installation vs. no door) and enabling flexible interior design adaptations.
2Adaptability or versatility
If door pillars are permanently installed in functional sections, then the ability to install door modules is ensured, but the conversion effort to change functional sections increases significantly
Solution Approach 1:
By segmenting the stabilizing elements into first and second elements, the patent enables selective removal or repositioning of only the second element during conversion, rather than removing entire door pillar structures. This reduces conversion effort while maintaining the capability to install door modules when needed.
Solution Approach 2:
The second stabilizing element can be temporarily removed or repositioned during conversion processes and then recovered or reinstalled when door modules are added to new functional sections. This approach reduces conversion effort by avoiding permanent installation and enabling reuse of stabilizing elements.
3Adaptability or versatility
If the entire stabilizing element structure is replaced during conversion, then the functional section can be changed, but the conversion effort and time increase
Solution Approach 1:
The stabilizing element structure is segmented into first and second elements, where only the second element needs to be modified or repositioned during conversion rather than replacing the entire structure. This significantly reduces conversion time while maintaining full convertibility between different functional sections.
Solution Approach 2:
The first stabilizing element is designed to remain in place and serve as a permanent structural component, while the second element is prepared for easy repositioning. This preliminary configuration enables rapid conversion by eliminating the need to remove and reinstall the entire stabilizing structure.
Data Source
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AI summary
The shell has a side region (16) arranged between a roof region (14) and a base region. The side region has longitudinal profiles, cross columns, window columns and door columns with functional sections for accommodation of functional elements of different functions. Functions of the functional sections are defined by the profiles and the columns. A part of the profiles and the columns is adjusted for changing the functions of the functional sections. The functional sections accommodate a door module (4) or a window module (6). An independent claim is also included for a method for retrofitting a carbody.