Aircraft Passenger Service Unit Independent Module Adjustment
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Solution Overview
Problem
Existing passenger service unit designs for aircraft combine reading lights and air supply modules in a way that compromises handling comfort and space efficiency, as the movement of one module affects the position of the other, requiring two hands for adjustment and limiting setting ranges.
Innovation Solution
A service device with a system of a gasper module and a lighting module, where both are assembled in a housing assembly around a common axis, allowing independent movement and positive locking without additional fixing elements, enabling separate and independent adjustment of each module for enhanced comfort and reduced space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the lighting module and gasper module are integrated in a combined housing, then space efficiency is improved, but handling comfort deteriorates as movement of one module affects the position of the other
Solution Approach 1:
The patent divides the service device into separate functional modules (lighting module and gasper module) that are radially adjacent but independently movable. Each module has its own adjustment mechanism allowing independent operation without affecting the other, resolving the contradiction between integrated design and handling comfort.
2Device complexity
If the lighting module and gasper module are combined in one housing, then device complexity is reduced, but ease of operation worsens requiring two hands for adjustment
Solution Approach 1:
The service device is segmented into independently adjustable modules, each with its own control mechanism. This allows a passenger to adjust one module (e.g., lighting) without manually manipulating the other module (e.g., gasper), enabling one-handed operation while maintaining a relatively simple integrated structure.
Solution Approach 2:
The patent implements dynamic adjustment mechanisms for each module, allowing independent movement and positioning. The lighting module can be adjusted independently of the gasper module, and vice versa, providing operational flexibility while maintaining a compact integrated design.
3Reliability
If additional fixing elements are used to secure modules in position, then reliability is improved, but device complexity and installation complexity increase
Solution Approach 1:
The module adjustment mechanisms are designed to be self-locking or self-retaining, where the modules maintain their adjusted positions through their own structural features rather than requiring separate fixing elements. This reduces overall device complexity while ensuring reliable positioning.
Data Source
AI summary
The invention relates to a service device having a system of a gasper module and a lighting module for a passenger service unit of an aircraft, comprising: a lighting source in a housing of the lighting module for providing light and a gasper orifice in a housing of the gasper module for supply of gasper air, wherein the lighting module and the gasper module are assembled in a housing assembly of the service device, wherein the housing assembly is adapted to hold the lighting module and the gasper module essentially around an axis (Z) of the housing assembly. According to the invention the lighting module and the gasper module are separated from each other by a housing assembly bearing part, and a force transmission is applicable to the lighting module and the gasper module for independent movement of at least one of the lighting module and the gasper module relative to the bearing part, and wherein the gasper module housing and the lighting module housing are separately form fitted to the bearing part by a positive locking.