Cable-Adjusted Seatback Support Strip for Passenger Lumbar Comfort
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Solution Overview
Problem
Aircraft passengers experience back pain during long flights due to prolonged sitting, necessitating a system that supports the back effectively.
Innovation Solution
A system with a support strip adjacent to the seatback frame, coupled to cables and adjustors in the armrests, allowing passengers to adjust the support strip's position using knobs or levers for enhanced comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed support structure is used in the seatback frame, then structural stability is maintained, but adaptability to different passenger needs is reduced
Solution Approach 1:
The support strip is segmented from the main seatback frame, allowing it to be independently positioned and adjusted. This segmentation enables the support strip to be customized for different passengers while keeping the overall seat structure simple and stable.
Solution Approach 2:
The support strip transitions from a static fixed position to a dynamic adjustable position through the cable and adjustor mechanism. This allows the support strip to adapt to different passenger needs while maintaining structural stability when not in use.
2Adaptability or versatility
If an adjustable support mechanism is added to the seatback, then adaptability is improved, but device complexity increases
Solution Approach 1:
A cable system acts as an intermediary between the support strip and the armrest adjustors, simplifying the mechanical connection. This intermediary mechanism allows for easy adjustment without requiring complex integrated systems within the seatback frame itself.
Solution Approach 2:
The cable adjustors are positioned in the armrests, allowing passengers to easily access and adjust the support strip position themselves without requiring assistance or complex control systems. This self-service approach reduces overall system complexity.
3Ease of operation
If the support strip is positioned far from the passenger's back, then ease of adjustment is improved, but support effectiveness is reduced
Solution Approach 1:
The support strip is positioned to contact the lower back region where lumbar support is most needed. The cable adjustors in the armrests provide easy remote operation, while the support strip itself remains in the optimal local position for effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables passengers to customize the support strip's position for comfort, reducing back pain during flights by providing adjustable lumbar support.
Implementation Method 1
The cable adjustor includes a first knob, wherein the first knob includes an axle coupled to the inner cable, wherein a rotation of the first knob causes the inner cable to wind onto the axle
Data Source
AI summary
A device may include a support strip disposed adjacent to a lower position of a seatback frame of a passenger seat. A device may include a first cable coupled on a first end to a first strip end of the support strip. A device may include a first cable adjustor coupled to a second end of the first cable, wherein an actuation of the first cable causes a movement of the support strip from a back position to a forward position.