Integrated Aircraft Galley Locks with Visual Status Indicators
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Solution Overview
Problem
Conventional locks used in aircraft galley systems are cumbersome, heavy, and fail to provide adequate visual indication of the locked status, posing safety risks due to potential misinterpretation of secure positions during aircraft operations.
Innovation Solution
The development of integrated locks with a low profile design that incorporates a visual indicator, which can be mechanical or electronic, to provide clear status indication, including a handle compression device that automatically returns to the locked position when not in use, ensuring secure engagement with the galley system frame and clear visual cues for the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional locks are used in aircraft galley systems, then the locking function is provided, but the locks are cumbersome and heavy
Solution Approach 1:
The patent combines the locking mechanism, visual indicator, and handle into a single integrated lock assembly. The locking portion, visual indicator, and handle are merged into one unit that moves together, eliminating the need for separate heavy components and reducing overall weight while maintaining secure locking function.
Solution Approach 2:
The patent replaces traditional heavy mechanical locks with a lighter integrated system that incorporates a visual indicator mechanism. The lock uses a compression device and visual indicator (mechanical or electronic) to provide locking status, substituting bulky mechanical indicators with more efficient designs that reduce weight.
2Loss of information
If conventional locks are used in aircraft galley systems, then the locking function is provided, but they do not provide adequate visual indication
Solution Approach 1:
The patent incorporates a visual indicator that changes appearance (color, position, or illumination) to indicate the locking status. The visual indicator provides clear, unambiguous visual feedback about whether the lock is engaged or disengaged, eliminating information loss and improving reliability through consistent visual communication.
Solution Approach 2:
The integrated lock incorporates a visual indicator that provides immediate feedback to the user about the locking status. The visual indicator responds to the position of the locking portion and handle, giving continuous feedback about the lock state to prevent misinterpretation and ensure reliable operation.
3Ease of operation
If conventional locks are used in aircraft galley systems, then the locking function is provided, but they are cumbersome to use
Solution Approach 1:
The patent merges the locking mechanism, visual indicator, and handle into a single integrated assembly that moves together as one unit. This integration simplifies the overall device by eliminating separate components and their associated mounting hardware, making the lock easier to operate while reducing complexity.
Solution Approach 2:
The integrated lock performs multiple functions within a single device: it provides locking, visual indication, and handle operation. The locking portion engages with the frame, the visual indicator shows status, and the handle controls operation - all in one unified mechanism that reduces complexity compared to separate components.
Data Source
AI summary
Provided are integrated locks, aircraft galley systems using such locks, and aircraft including such galley systems. An integrated lock has a low profile and provides secure locking and visual indication of the lock status to meet various FAA regulations. The visual indication may be provided mechanically (e.g., by moving a two-color indicator between two positions) or electronically (e.g., by triggering a switch connected to a light or an electro-chromic device). Furthermore, a main indicator may be connected to multiple different locks to provide a combined visual indication of the status of all locks. A visual indicator may be disposed on a galley system frame. Each integrated lock may include a handle portion and a locking portion connected to the handle portion and configured to engage the galley system frame when the handle portion is in the locked position and the door is closed.