IFE Display Quick-Release Latch for Secure Seat Mounting
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Solution Overview
Problem
Conventional display device mounting systems for aircraft seats are labor-intensive and time-consuming for installation, removal, and maintenance due to the need for partial disassembly and secure attachment to internal seat structures, which complicates equipping and repairing in-flight entertainment systems.
Innovation Solution
A quick release mechanism with a pair of main latch assemblies, including an activation rod with sloped teeth, a lock rod with sloped teeth, and rotatable lock pawls, allows for rapid attachment and detachment of display devices while ensuring secure locking and preventing unauthorized detachment, featuring audible and visual indicators for correct latching and a spring-loaded mechanism for easy release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mounting systems are used to securely attach display devices to internal seat structures, then security and stability are improved, but installation and maintenance time increases significantly
Solution Approach 1:
The mounting system is divided into separate components: a receptacle assembly permanently mounted to the seat structure, and a display device with a separate striker assembly. This segmentation allows the display device to be quickly attached and detached without affecting the seat structure, resolving the contradiction between secure attachment and quick installation/maintenance.
Solution Approach 2:
The complex internal seat structure disassembly requirement is extracted and eliminated. The new system uses external receptacle assemblies that are already mounted to the seat, allowing display devices to be attached without any disassembly of the seat itself, thus reducing installation time while maintaining security.
2Reliability
If display devices are permanently mounted to internal seat structure, then unauthorized detachment is prevented, but labor intensity for installation and repair increases
Solution Approach 1:
The mounting system transitions from a static permanent installation to a dynamic quick-release system. The striker and receptacle assembly with latch mechanisms enable the display device to be securely mounted during operation but quickly removed when needed, reducing labor intensity for installation and repair while maintaining security during normal use.
Solution Approach 2:
The receptacle assembly acts as an intermediary between the seat structure and the display device. It provides a secure mounting interface that requires no disassembly of the seat, eliminating the labor-intensive process of accessing internal seat structures while still preventing unauthorized detachment through its secure latching mechanism.
3Reliability
If complex disassembly procedures are required for display device installation, then secure mounting is achieved, but productivity for equipping aircraft decreases
Solution Approach 1:
The receptacle assemblies are pre-installed and secured to the seat structures before the display devices are attached. This preliminary action eliminates the need for complex disassembly procedures during display device installation, allowing maintenance personnel to simply attach the display device to the pre-positioned receptacles, thus improving productivity while maintaining secure mounting.
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
The solution significantly reduces installation and maintenance time by enabling rapid and secure attachment/detachment of display devices, preventing false lock indications, and providing clear visual and audible feedback for maintenance personnel, thus improving operational efficiency in aircraft environments.
Implementation Method 1
a lock rod spring having a spiral shape about a rod extending axially through the lock rod to connect to the activation rod, the lock rod spring resiliently urging the sloped teeth of the lock rod to engage the sloped teeth of the activation rod
Data Source
AI summary
A display apparatus receptacle configured to be mounted to a passenger seat. The display apparatus receptacle includes a pair of main latch assemblies releasably connectable to a striker of a display apparatus. The pair of main latch assemblies include an activation rod having an end with sloped teeth. The pair of main latch assemblies also include a lock rod with an end having sloped teeth and attached to a pair of latch plates. The pair of main latch assemblies also include a pair of lock pawls rotatable by movement of the latch plates. The pair of main latch assemblies also include a lock rod spring having a spiral shape about a rod extending axially through the lock rod to connect to the activation rod, the lock rod spring resiliently urging the sloped teeth of the lock rod to engage the sloped teeth of the activation rod.