Aircraft Floor Movable Part Pivoting Joint Access
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Solution Overview
Problem
In aircraft design, the existing floor structures often lack sufficient access to the areas under the floor, particularly when the upper area is used for container storage, making it difficult to access and maintain components located under the central sail box and main landing gear box.
Innovation Solution
The aircraft floor incorporates a mobile floor part with a portion of rail that allows for a larger transverse movement, facilitated by a joint that enables easy handling. This design provides increased access to the areas under the floor by allowing the mobile floor part to be easily pivoted and moved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If rails are placed close together for container storage, then container storage capability is improved, but access to the area under the floor deteriorates
Solution Approach 1:
The floor is divided into fixed floor parts and movable floor parts. The movable floor parts can be pivoted or removed to provide access to the area under the floor, while the fixed floor parts with closely spaced rails maintain container storage capability. This segmentation allows the system to achieve both contradictory requirements simultaneously.
Solution Approach 2:
The floor structure incorporates movable floor parts that can change position dynamically. These movable parts are connected via articulations allowing them to pivot between a horizontal position (providing floor surface) and a raised position (providing access). This dynamic capability enables the floor to adapt between storage mode and maintenance mode.
2Strength
If a fixed floor structure is used, then structural strength is improved, but accessibility to areas under the floor deteriorates
Solution Approach 1:
The floor is segmented into fixed and movable portions. The fixed floor parts provide the necessary structural strength, while the movable floor parts provide access when needed. This segmentation allows the overall structure to maintain strength while enabling accessibility.
Solution Approach 2:
Different parts of the floor have different properties: fixed floor parts have high structural strength, while movable floor parts prioritize accessibility. This local differentiation of qualities allows each part to optimize its function without compromising the other.
3Ease of operation
If movable floor parts are introduced to improve access, then accessibility is improved, but device complexity increases
Solution Approach 1:
The floor incorporates movable parts with articulations that allow pivoting motion. These articulations provide a relatively simple mechanical means to achieve complex functionality - the ability to transform from a solid floor surface to an accessible structure with minimal complexity increase.
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 enhances accessibility to the areas under the floor, allowing for easier operations during aircraft assembly, equipment installation, and maintenance, while also providing a robust connection to support the weight of containers.
Implementation Method 1
the floor comprising at least one articulation (52) connecting the movable floor part (46) to the fixed floor part (44)
Data Source
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AI summary
The invention relates to an aircraft floor comprising at least one hinge (52), connecting movable (46) and fixed (44) floor sections, which has a pivot axis (A52) parallel to a longitudinal direction. The floor also comprises: - at least two cross members (36), each having first and second cross member portions (48.1, 48.2) attached respectively to the fixed (44) and movable (46) floor sections and connected to each other by a pivot joint (54), - at least one rail (38) comprising at least a first rail section (50.1) attached to the movable floor section (46) and at least a second rail section (50.2) attached to the fixed floor section (44) of the floor, extending from said first rail section (50.1).