Deployable Headrest for Forward Resting Comfort
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Solution Overview
Problem
Passengers on long haul flights often find existing seat configurations ergonomically uncomfortable for resting, particularly when trying to lean forward, and may be hesitant due to cleanliness concerns.
Innovation Solution
A seat assembly with a moveable headrest that can be stowed within the backrest and deployed to support passengers in a forward resting position, featuring a padded insert and antimacassar for hygiene, and an electronic device compartment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If passengers lean forward to rest on the back of the seat in front or on a tray table, then they can rest in a forward position, but the position is not ergonomically comfortable and raises cleanliness concerns
Solution Approach 1:
The headrest is segmented from the main seat backrest, allowing it to be deployed independently as a separate forward-leaning support structure. This segmentation enables the headrest to provide a dedicated clean surface for resting without requiring contact with the shared backrest or tray table surfaces that raise hygiene concerns.
Solution Approach 2:
The deployable headrest acts as an intermediary structure between the passenger and the seat backrest/tray table. Instead of directly contacting potentially unclean surfaces, the passenger rests on the headrest which can be cleaned and maintained separately, mediating the cleanliness issue while enabling forward resting position.
2Ease of operation
If a deployable headrest is added to provide forward resting support, then ergonomic comfort is improved, but device complexity increases
Solution Approach 1:
The headrest transitions from a static fixed structure to a dynamic deployable structure that can move between stowed and deployed positions. This dynamic capability allows the headrest to provide ergonomic support when needed while remaining compact when not in use, balancing comfort improvement with space constraints.
Solution Approach 2:
The headrest structure is designed to nest within or against the seat backrest when in the stowed position. This nesting approach minimizes the increase in device complexity by utilizing existing seat structures for storage, rather than requiring separate dedicated space for the headrest mechanism.
3Ease of operation
If the headrest is kept deployed to provide continuous support, then ergonomic comfort is maintained, but it may snag on objects and requires additional space
Solution Approach 1:
The headrest employs a dynamic deployable mechanism that allows it to be stowed when not in use, eliminating the snagging risk associated with permanently deployed structures. The ability to transition between deployed and stowed states provides continuous support when needed while avoiding obstacles when not needed.
Data Source
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AI summary
A seat assembly includes a seat cushion, a backrest, and a headrest moveably coupled to a back of the backrest. The headrest is configured to be moved between a stowed position in which the headrest is retained within a portion of the backrest and a deployed position in which the headrest is configured to support a passenger in a forward resting position.