Vertical Sliding Baggage Compartment Door
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Solution Overview
Problem
Baggage compartment doors in aircraft cabins, when opened, often obstruct the aisle due to their horizontal extension, posing a safety hazard and requiring a solution that allows for reliable and secure operation without encroaching on adjacent space.
Innovation Solution
A door with guide means for vertical translational movement, utilizing complementary guide rails and slideways oriented perpendicularly to maintain rigidity and compactness, along with retracting and locking mechanisms, and speed regulation to ensure safe and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a horizontally sliding door is used to close a floor-level baggage compartment, then good guidance of the door is achieved, but the door extends into the aisle and obstructs the passageway when opened
Solution Approach 1:
The door movement is changed from horizontal sliding to vertical translation. The guide means constrain the door to move only in the vertical direction, perpendicular to the aisle, eliminating the horizontal extension that causes obstruction while maintaining controlled guidance through the guide rails and slideways.
Solution Approach 2:
Instead of the door moving outward horizontally into the aisle, the door moves upward vertically along the guide means. This inverts the traditional door opening direction, allowing the door to clear the opening space without encroaching on the adjacent passageway.
2Object-generated harmful factors
If the door is provided with guide means for vertical translational movement, then the door does not encroach on adjacent space, but the door may lack rigidity in open position
Solution Approach 1:
The guiding function is extracted from the door itself and implemented through separate guide means (guide rails and slideways) fixed to the compartment structure. This allows the door to achieve controlled vertical movement while the guide system provides the necessary constraints to maintain rigidity in the open position without the door encroaching on adjacent space.
Solution Approach 2:
By changing the door movement to vertical translation along guide means, the door achieves controlled guidance in the vertical dimension while eliminating horizontal displacement. This dimensional change allows the door to maintain rigidity through proper guide design without encroaching on the lateral space.
3Ease of operation
If retracting means are provided to enable automatic door opening, then ease of use is improved, but the door may open too quickly creating safety hazards
Solution Approach 1:
Speed limitation means are provided to monitor and control the door opening speed. The feedback mechanism ensures the door opens at a controlled rate, preventing excessively fast opening that could create safety hazards while maintaining the convenience of automatic opening operation.
Solution Approach 2:
Speed limitation means are incorporated into the retracting mechanism to preemptively control the door opening speed. This prior cushioning approach prevents the door from opening too quickly by imposing speed constraints before the door reaches hazardous velocities, ensuring safe operation.
Data Source
AI summary
This door is intended for a compartment, such as an aircraft baggage compartment. The door can be moved between a first position, in which it closes an opening of the compartment, and a second position, in which the opening is accessible. This door is provided with a guide system on both sides of the opening of the compartment to guide the door in a substantially vertical translational movement.