Adjustable Seal Frame for Aircraft Cabin Seats
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Solution Overview
Problem
The irregular shape of gaps between floor-mounted cabin attendant seats and aircraft walls requires custom-designed seal frames for each unique scenario, increasing design time, material needs, and installation complexity.
Innovation Solution
The use of displacement elements such as leaf springs or manually adjustable threaded elements, combined with fabric tensioning systems, allows the seal frame to conform to the aircraft wall's irregular shape, eliminating the need for custom designs by maintaining tension and adapting to different orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If custom-designed seal frames are used for each unique gap scenario, then the gap coverage effectiveness is improved, but the design time and installation complexity increase
Solution Approach 1:
The seal frame is designed with adjustable components that allow a single universal frame design to accommodate multiple different gap configurations. The frame includes adjustable arms and positioning mechanisms that can be configured to fit various gap shapes and sizes, eliminating the need for custom-designed frames for each scenario while maintaining effective gap coverage.
Solution Approach 2:
The seal frame incorporates dynamic adjustment capabilities through movable arms, adjustable connectors, and repositionable components. These dynamic elements allow installers to modify the frame's geometry and dimensions in the field to match the specific gap configuration, reducing design time while ensuring proper fit and coverage effectiveness.
2Reliability
If custom-designed seal frames are used for each unique gap scenario, then the gap coverage effectiveness is improved, but the installation complexity increases
Solution Approach 1:
A single universal seal frame design with adjustable components replaces multiple custom-designed frames, simplifying the installation process. The frame includes standardized adjustment mechanisms that can accommodate various gap configurations without requiring complex custom fabrication or specialized installation procedures for each scenario.
Solution Approach 2:
The seal frame is divided into modular segments or adjustable components that can be independently positioned and configured. This segmentation allows for simplified assembly and adjustment during installation, as each component can be independently adapted to the gap geometry rather than requiring complex integration of custom-designed parts.
3Manufacturing precision
If different gap covers are produced for every individual scenario, then the fit precision is improved, but the material requirements and production complexity increase
Solution Approach 1:
A single universal seal frame design with adjustable components replaces the need to produce multiple different gap covers for various scenarios. The frame's adjustment capabilities allow it to achieve precise fit for different gap configurations using the same materials, thereby reducing overall material requirements while maintaining manufacturing precision.
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
This solution simplifies the design and installation process by allowing a single seal frame to fit various irregular gaps, reducing material requirements and complexity while maintaining effective coverage and preventing wear on the aircraft wall.
Implementation Method 1
displacement elements connecting the frame to the posterior of the seat... The displacement elements are leaf springs or coil springs
Data Source
Figure 1A~1D
Figure 2
Figure 3A~3B
AI summary
A floor mounted aircraft seat seal frame includes a frame (200), displacing elements (202, 204) connecting the frame to the posterior of the seat, and fabric tensioning elements (210, 212, 214, 216) that keep a gap covering fabric connected to the posterior surface of the seat in tension around the frame. The frame displacing elements, which may be leaf springs, coil springs, or manually adjustable element, allow the frame to conform to a wall behind the seat, regardless of the tapering of the wall.