Translating Aircraft Seat Design for Space-Efficient Bed Conversion
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Solution Overview
Problem
Aircraft seat units that convert from upright to bed configurations occupy significant space and increase aircraft weight, reducing fuel efficiency and passenger capacity.
Innovation Solution
A lightweight aircraft seat unit with a backshell and seat pan that slides between configurations, utilizing a slider and handle for easy conversion, potentially integrated with a console and actuator, to minimize space and weight while providing comfort and privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the seat is designed to slide between upright and bed configurations, then passenger comfort and versatility are improved, but the device complexity and space requirements increase
Solution Approach 1:
The seat back is designed to be movable relative to the seat pan, allowing dynamic reconfiguration between upright and bed positions. The slider mechanism enables the seat back to translate horizontally, creating a flat surface for sleeping while maintaining structural integrity through guided motion paths.
Solution Approach 2:
The seat back portion is designed to nest within the backshell when in the bed configuration, allowing the moving components to occupy minimal space. The slider and seat back components are integrated into the backshell structure, eliminating the need for separate housing elements.
2Adaptability or versatility
If conventional seat units with multiple parts are used, then passenger experience is improved, but aircraft weight increases reducing fuel efficiency
Solution Approach 1:
Multiple functional elements are merged into integrated components. The backshell serves as both a structural support and a housing for the slider mechanism. The seat back incorporates both the moving interface and structural elements, eliminating the need for separate parts and reducing overall weight.
Solution Approach 2:
The slider mechanism serves multiple functions: it enables configuration changes, provides structural support, guides motion, and integrates with the backshell. This multi-functionality reduces the need for additional dedicated components, thereby reducing weight while maintaining versatility.
3Adaptability or versatility
If the seat back depth is increased for comfort in bed configuration, then passenger comfort is improved, but the space occupied in upright configuration increases reducing passenger capacity
Solution Approach 1:
The seat back transitions from a compact vertical position to an extended horizontal position through the slider mechanism. In the upright configuration, the seat back occupies minimal depth within the backshell. When slid to the bed configuration, the seat back extends to provide adequate sleeping surface area, effectively increasing depth only when needed.
Solution Approach 2:
The seat back movement is constrained to horizontal translation along the slider path, changing the spatial arrangement from vertical to horizontal. This dimensional change allows the seat back to provide extended surface area for sleeping without increasing the vertical footprint or overall volume occupied in the upright position.
Data Source
AI summary
The present invention provides an aircraft seat unit comprising a backshell and a seat, the seat having a seat pan portion connected to a back portion, wherein the seat is configured to slide within the backshell between an upright configuration, where a passenger can sit on the seat pan portion in a sitting position with their back supported by the back portion of the seat, and a bed configuration, where the passenger can lie on the seat pan and seat back portions.