Dismountable Seat Assembly for Emergency Patient Extraction
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Solution Overview
Problem
Existing devices for evacuating injured individuals from vehicles often result in uneven positioning of the buttocks and legs, requiring additional cushions or mattresses to stabilize the patient during extraction.
Innovation Solution
A dismountable seat assembly with an individual back and seat, detachable via emergency connecting means, allowing for the extraction of the seat's buttocks-supporting portion with the back, maintaining the 'head-neck-column' axis and providing secure straps for stabilization, while keeping the attaching means fixed to the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the entire seat assembly is extracted from the vehicle during emergency evacuation, then the injured person can be removed completely, but the device complexity increases and time is lost in detaching attaching means
Solution Approach 1:
The seat assembly is divided into two main segments: a fixed attaching means that remains in the vehicle and a detachable seat back with integrating means that can be extracted with the injured person. This segmentation allows rapid evacuation without detaching the entire seat assembly, resolving the contradiction between evacuation speed and device complexity.
Solution Approach 2:
The integrating means is designed to be detachably connected to the attaching means, allowing the seat back portion to be extracted while leaving the attaching means fixed in the vehicle. This extraction principle enables quick removal of the injured person without the time-consuming process of detaching the entire seat assembly.
2Reliability
If cushions or additional mattresses are used to level the buttocks and legs, then patient stabilization is achieved, but the device complexity and time required for evacuation increase
Solution Approach 1:
The seat back and seat base are integrally connected through the integrating means, forming a unified structure that maintains proper patient alignment. This merged design eliminates the need for separate cushions or mattresses to level the patient's body parts, reducing device complexity while ensuring reliable stabilization during evacuation.
3Adaptability or versatility
If the attaching means is designed to be completely removable, then modularity is improved, but the reliability of secure attachment during evacuation is reduced
Solution Approach 1:
The attachment system is segmented into a permanently fixed attaching means in the vehicle and a detachable integrating means on the seat back. This segmentation maintains reliable secure attachment during evacuation while allowing the seat back to be removed for patient extraction, balancing attachment security with evacuation adaptability.
Data Source
AI summary
A dismountable seat assembly for attaching to an anchoring component of a vehicle includes an individual back hingeably attached to an individual seat, an attaching component and an emergency connecting component. The emergency connecting component connects at least a part of the individual seat which is attached to the individual back to the attaching component in a detachable way, so that the individual back and the at least part of the individual seat attached to the individual back are detachable together from the attaching component.