Flexible Aircraft Cabin Zone for Wheelchair Securement
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Solution Overview
Problem
Aircraft interiors lack a flexible configuration to accommodate both conventional passengers and wheelchair users without disrupting boarding procedures or sacrificing seating density, as standard aircraft aisles are too narrow for standard wheelchairs and existing solutions do not provide secure and efficient securement space for wheelchairs during flight.
Innovation Solution
The aircraft interior configuration includes a flexible use space that can be reconfigured to provide conventional passenger seating or securement space for wheelchairs, utilizing adjustable strap restraints and a floor palette with seat tracks to securely fasten wheelchairs, while maintaining a consistent seating arrangement and density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the aircraft aisle width is reduced to accommodate standard wheelchairs, then wheelchair accessibility is improved, but passenger seating density is reduced
Solution Approach 1:
The aircraft interior is segmented into distinct zones: a wheelchair securement zone with expanded width at the rear of the cabin, and a passenger seating zone with standard aisle width. This segmentation allows the wheelchair accommodation space to be separated from the main passenger flow area, preserving seating density while providing accessible securement space.
Solution Approach 2:
The solution transitions from a linear aisle-based accommodation approach to a two-dimensional zone-based approach. By creating a dedicated securement zone that extends across the cabin width at the rear, the design accommodates wheelchairs without narrowing the main aisle, effectively using spatial dimensionality to resolve the contradiction.
2Ease of operation
If transfer wheelchairs are used to navigate narrow aisles, then aisle width constraints are satisfied, but passenger disruption increases
Solution Approach 1:
The invention extracts the wheelchair securement function from the main passenger aisle area and relocates it to a dedicated securement zone at the rear of the cabin. This allows passengers to board using standard procedures without requiring transfer to specialized wheelchairs, eliminating the time-consuming transfer process while still providing appropriate securement space.
Solution Approach 2:
Wheelchair securement positions are pre-configured in the rear zone before boarding begins. Passengers can board directly with their personal wheelchairs and proceed to these pre-prepared securement areas, eliminating the need for preliminary transfers or special boarding procedures.
3Adaptability or versatility
If personal wheelchairs are allowed in the main cabin, then passenger comfort is improved, but securement space availability decreases
Solution Approach 1:
The invention merges the wheelchair securement function with the existing aircraft interior structure by integrating securement anchors into the floor and bulkhead structures of the rear zone. This allows personal wheelchairs to be accommodated in a dedicated area without requiring additional space beyond the standard aircraft cabin envelope, maintaining securement capacity while improving passenger comfort.
4Adaptability or versatility
If the aircraft interior is reconfigured for wheelchair securement, then accessibility is improved, but seating capacity is reduced
Solution Approach 1:
The rear zone is designed with dynamic reconfigurability, allowing the space to function as wheelchair securement area during flights with wheelchair passengers and as additional passenger seating during flights without wheelchair passengers. This dynamic adaptation maximizes both accessibility and seating capacity depending on operational requirements.
Data Source
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AI summary
An interior configuration (100) for an aircraft including a longitudinal aisle (114) and rows of passenger seats (106), wherein a row of the passenger seats is disposed in a flexible use space (104) adjacent the aisle and a bulkhead (116), and wherein the flexible use space includes a floor palette (144) and attendant seats (130, 132, 134) equipped with flip-up seat bottoms (126) such that the flexible use space can be configured for passenger seating or to provide securement space within the flexible use space for securing items such as a wheelchair, pet carrier, large items and items of value.