Aircraft Stowage Bin Cover Anti-Slip Strip Design
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Solution Overview
Problem
Overhead stowage bin cover assemblies in aircraft fail to provide sufficient resistance against downward movement of luggage or payload when bin buckets are opened, leading to potential luggage falling on passengers due to gravitational force and smooth luggage materials overcoming existing edge stops.
Innovation Solution
A stowage bin cover assembly with anti-slip strips positioned in grooves on the cover, which frictionally engage the payload to resist movement, providing robust resistance without increasing manufacturing costs or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a raised edge stop is used to resist downward movement of luggage, then resistance to payload migration is improved, but manufacturing costs and weight increase
Solution Approach 1:
The patent changes the surface parameter of the edge stop by adding a textured or non-slip coating that increases friction coefficient. This allows the existing edge stop geometry to provide sufficient resistance without increasing its height or requiring more material, thereby maintaining ease of manufacture while improving resistance to payload downward movement.
Solution Approach 2:
The patent applies a non-slip surface treatment only to the specific contact area of the edge stop where payload interaction occurs, rather than modifying the entire edge stop structure. This localized quality enhancement provides the necessary friction increase without adding significant manufacturing complexity or cost.
2Force
If the height of the edge stop is increased to enlarge the obstruction, then resistance to payload migration is improved, but the opening width for loading luggage is reduced
Solution Approach 1:
The patent modifies the friction parameter of the edge stop surface through texturing or coating, allowing the edge stop to maintain its original height while providing increased resistance to payload sliding. This preserves the loading opening width while achieving the desired resistance force through enhanced surface friction rather than increased geometric obstruction.
3Force
If a raised edge stop is used to obstruct payload movement, then resistance to migration is improved, but the cover assembly weight increases
Solution Approach 1:
The patent changes the surface friction parameter of the edge stop through texturing or coating applications that add minimal mass. This allows the edge stop to provide enhanced resistance to payload downward movement without requiring additional structural material or increased dimensions, thereby minimizing weight increase in the cover assembly.
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
Effectively prevents or resists unintentional migration of luggage or payload, ensuring safety and reducing manufacturing costs by using efficient and lightweight anti-slip strips.
Implementation Method 1
the anti-slip strip will frictionally engage a payload received in the stowage bin, where the frictional engagement may resist movement of the payload
Data Source
AI summary
A stowage bin cover assembly coupleable to a stowage bin is provided. The stowage bin cover assembly includes a stowage bin cover coupleable to the stowage bin, the stowage bin cover including a first groove; and an anti-slip strip coupleably received in the first groove. The anti-slip strip can be positioned and oriented to project above an uppermost outer surface of the first groove such that the anti-slip strip will frictionally engage a payload received in the stowage bin, the frictional engagement resisting movement of the payload. Related methods are also provided.