Evacuation Assist Cover Structure for Tilted Vehicle Exits
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Solution Overview
Problem
Closed cabin vehicles, such as helicopters, pose a significant risk to occupants during accidents as they can trap passengers, especially when tilted, due to obstacles like water retention trays hindering evacuation and the difficulty in reaching lateral emergency exits.
Innovation Solution
A device comprising a case with a cover that secures to the vehicle's interior wall, allowing the cover to pivot open to form a grip or bearing area for passengers to hoist themselves to an exit, and a liquid retention device to manage spills, using fastening members and mechanical mechanisms for easy installation and operation without power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a water retention tray is installed on the helicopter floor to collect seawater, then liquid retention capability is improved, but passenger evacuation difficulty increases due to obstruction
Solution Approach 1:
The floor is segmented into modular sections: solid flooring areas for passenger movement and discrete liquid retention trays positioned in specific zones. This segmentation allows the floor to serve dual functions of passenger evacuation and liquid containment without mutual interference
Solution Approach 2:
The patent introduces intermediate structural elements such as raised floor panels and containment ridges that act as mediators between the liquid retention function and passenger evacuation path. These intermediaries guide liquids to designated trays while maintaining clear, unobstructed evacuation routes for passengers
2Reliability
If the helicopter cabin is equipped with abundant rescue equipment, then rescue capability is improved, but evacuation difficulty increases due to clutter
Solution Approach 1:
Rescue equipment is segmented and organized into dedicated compartments and mounting locations throughout the cabin. Equipment such as life rafts, medical kits, and communication devices are positioned in accessible but non-obtrusive locations, allowing comprehensive rescue capability while maintaining clear evacuation pathways
Solution Approach 2:
Cabin structures and fixtures are designed with multi-functionality, serving both as structural support and equipment mounting points. Floor panels, wall panels, and overhead structures integrate equipment storage and mounting capabilities while maintaining their primary structural and evacuation functions
3Adaptability or versatility
If the helicopter is designed for side-landing capability, then operational versatility is improved, but passenger evacuation becomes difficult when tilted
Solution Approach 1:
Evacuation aids are strategically positioned at specific locations corresponding to potential tilt orientations. Grab handles, footrests, and escape route markings are installed on walls and structures that will remain accessible in various tilt positions, ensuring evacuation assistance is available regardless of landing orientation
Solution Approach 2:
The patent incorporates movable and adjustable evacuation assistance elements such as telescopic handholds, articulating support structures, and flexible positioning mechanisms that can adapt to different tilt angles and orientations, maintaining effectiveness across multiple landing scenarios
Data Source
AI summary
A vehicle comprising an inner wall (5), an evacuation exit of the vehicle, and a device (1) for assisting the emergency evacuation of the vehicle secured to said wall (5) by means of a fastening means (3, 4), said device (1) comprising a case (2) with a main body (20) delimiting an inner volume (V), and also a cover (7) connected to the main body (20) by a permanent connection means (8), said main body (20), fastening member (3, 4), cover (7) and permanent connection means (8) being shaped and dimensioned such that the cover (7) contributes to forming, in the open position, a bearing area and/or a grip allowing a person to hoist themselves towards the evacuation exit.