Roller-Blind Space Divider for Secure Rail Freight Segregation
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Solution Overview
Problem
Public rail transportation vehicles lack a secure means to transport freight without making it accessible to passengers, as existing storage spaces are not segregated.
Innovation Solution
A space divider with a roller blind and attachment hooks that can be easily installed on existing handrails, dividing the vehicle into passenger and freight areas, using a roll-up cover to separate the two spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a space divider with roller blind is installed to separate freight from passengers, then freight security is improved, but device complexity increases
Solution Approach 1:
The space divider is segmented into modular components: a frame structure, a roller blind mechanism, and attachment hooks. This segmentation allows the system to provide comprehensive freight security while maintaining ease of installation and removal, as each component can be independently assembled and disassembled without requiring complex integration procedures.
Solution Approach 2:
The roller blind is designed as a dynamic, movable partition that can be rolled up and down to create or remove separation between passenger and freight areas. This dynamic capability allows the system to provide security when needed while simplifying the overall vehicle configuration when the divider is not in use, effectively reducing the average device complexity.
2Ease of operation
If attachment hooks are used to install the space divider on existing handrails, then ease of installation is improved, but strength of attachment may be reduced
Solution Approach 1:
The attachment hooks are designed to utilize the existing handrail structure of the vehicle for support, allowing the space divider to attach itself to the vehicle's own components without requiring additional installation infrastructure. This self-service approach enables easy installation while maintaining adequate attachment strength by leveraging the vehicle's existing structural elements.
3Ease of manufacture
If the roll-up cover is made in fabric, then ease of manufacture is improved, but protection against passenger access may be reduced
Solution Approach 1:
The roll-up cover utilizes a flexible fabric material that can be easily manufactured and rolled onto the winding tube. The fabric provides sufficient visual and physical barrier to prevent passenger access to freight while maintaining ease of manufacture. The flexibility of the fabric allows it to be effectively contained within the frame structure and attachment system, ensuring reliable access prevention despite the material's inherent flexibility.
Data Source
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AI summary
A space divider (30), for a public rail transportation vehicle (10), comprises a roller blind (32), having a roll-up cover (34), a winding tube, to which a first extremity (34A) of the roll-up cover is attached and on which the roll-up cover can be rolled up, a frame (38), in which the winding tube is mounted, and an end bar (40), to which a second extremity (34B) of the roll-up cover is attached; and comprises at least one attachment hook (42), fixedly secured to the frame (38). The at least one attachment hook attaches the frame of the space divider to a first handrail (22B) of a public rail transportation vehicle (10), the first handrail extending vertically or horizontally, so as to allow the roll-up cover to be deployed horizontally or vertically from the first handrail to divide the interior of the vehicle in two volumes.