Aircraft seat unit, and aircraft seat unit assembly
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Solution Overview
Problem
Existing aircraft seat designs fail to provide adequate support for diverse passenger requirements, as the hardness of the seat surface remains constant in both seating and flat forms, insufficiently meeting the varied needs of passengers.
Innovation Solution
An aircraft seat unit with a seat portion that can change between a short and long state, featuring a first buttocks support layer that is harder than a second buttocks support layer, allowing passengers to select the desired level of hardness and comfort based on their needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the seat surface hardness is kept constant in both seating and flat forms, then the seat structure is simple, but the ability to meet diverse passenger requirements is insufficient
Solution Approach 1:
The seat cushion is divided into multiple layers with different hardness characteristics. The first cushioning layer has a first hardness value, the second cushioning layer has a second hardness value different from the first, creating a multi-layer structure that provides different support characteristics for different seating positions.
Solution Approach 2:
Different regions of the seat cushion have different hardness properties. The front portion of the seat cushion contains the first cushioning layer with first hardness, while the rear portion contains the second cushioning layer with second hardness, allowing localized adaptation to different passenger needs.
2Adaptability or versatility
If the seat cushion is made uniformly hard, then structural support is good, but comfort for relaxation is insufficient
Solution Approach 1:
The cushion is segmented into multiple independent layers with different hardness characteristics. Each layer can be manufactured separately and then assembled, providing both manufacturing simplicity and functional versatility.
Solution Approach 2:
The cushion uses composite material construction with at least two different cushioning materials having different hardness values. This allows the cushion to provide both firm support and soft comfort zones within a single integrated component.
Data Source
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AI summary
In order to provide an aircraft seat unit and an aircraft seat unit assembly capable of meeting various passenger requirements, an aircraft seat unit is provided with a seat portion including a first buttocks support layer and a second buttocks support layer, and a backrest portion. The seat portion is configured to be capable of changing states between a short seat portion state and a long seat portion state. The first buttocks support layer configured to support the buttocks of a passenger in the short seat portion state is harder than the second buttocks support layer configured to support the buttocks of the passenger in the long seat portion state.