Galley Footstep System with Foldable Step Panel
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Solution Overview
Problem
Flight attendants face challenges in reaching elevated compartments in aircraft galleys due to the lack of a stable and safe footstep system, with existing solutions being unstable and difficult to use, and typical galley footsteps are too narrow to provide adequate support.
Innovation Solution
A vertically oriented galley footstep system that is securely mounted within a compartment door, featuring a pivotally coupled upper step panel and bracing panel, with guide tracks and pins for easy deployment between retracted and extended positions, providing a stable and safe support surface without protruding into the galley workspace.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a typical narrow pivotal bar footstep is used between adjacent galley compartments, then the footstep can be stored in the limited space between compartments, but it provides insufficient stable support area for flight attendants wearing various types of shoes
Solution Approach 1:
The footstep system transitions from a static narrow bar to a dynamic foldable structure that can be deployed to a larger surface area when needed. The panel folds from a compact vertical position to an extended horizontal position, dynamically changing the support surface area to accommodate different shoe types and provide stable footing.
Solution Approach 2:
The footstep panel extends in the horizontal dimension when deployed, transforming from a narrow vertical bar (1D) to a wide horizontal platform (2D). This dimensional change provides sufficient surface area for stable support while maintaining compact storage in the vertical dimension.
2Ease of operation
If a wider footstep is used to provide adequate support surface area, then flight attendants can stand safely, but the footstep would protrude into the galley workspace when not in use
Solution Approach 1:
The footstep system is designed as a dynamic deployable structure that transitions between a compact retracted position (when not in use) and an extended support position (when needed). This eliminates workspace obstruction during normal operations while providing adequate support surface area when required.
Solution Approach 2:
The footstep panel nests within or alongside the compartment door structure when retracted, similar to a nested doll configuration. This allows the wide support surface to be contained within the existing galley space boundaries, preventing workspace obstruction while maintaining the capability to extend when needed.
3Device complexity
If a simple pivotal bar is used, then the device complexity is low, but the footstep cannot support the weight of an individual or prevent slipping and shifting
Solution Approach 1:
The footstep panel appears to be constructed from a composite structure combining a rigid support framework with a stable surface material. This composite construction provides both the necessary weight-bearing capacity and slip resistance while maintaining reasonable structural complexity.
Solution Approach 2:
The footstep system incorporates a controlled deployment mechanism with guide tracks and retainers that actively manage the transition between retracted and extended positions. This dynamic control system ensures reliable weight support and prevents unintended movement or slipping during both deployed and retracted states.
4Ease of operation
If the footstep is permanently extended to provide continuous support, then flight attendants can easily access elevated compartments, but the footstep occupies galley workspace and cannot be retracted
Solution Approach 1:
The footstep system is designed as a dynamic deployable structure that transitions between a compact retracted position (when not in use) and an extended support position (when needed). This eliminates workspace obstruction during normal operations while providing adequate support surface area when required.
Solution Approach 2:
The footstep operates on a periodic deploy-retract cycle, extending only when needed for accessing elevated compartments and retracting when not in use. This periodic action minimizes workspace occupation while maintaining accessibility when required.
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 footstep system offers a safe and stable support for flight attendants to reach elevated compartments, is easily deployable, and does not occupy galley space when not in use, ensuring a secure and efficient working environment.
Implementation Method 1
The step panel is pivotally coupled to a lower bracing panel by a hinge
Implementation Method 2
The footstep system may include a first guide track on a first side of the step panel, and a second guide track on a second side of the step panel. The step panel may include first and second pins extending from respective first and second lateral edges. The first and second pins may be slidably retained within the first and second guide tracks.
Implementation Method 3
The compartment door may include first and second retainers that retain the first and second pins to retain the footstep system in the retracted position.
Implementation Method 4
The footstep system may include at least one push latch that supports the footstep system in the extended position.
Implementation Method 5
Optionally, the footstep system may include at least one spring that supports the footstep system in the extended position.
Data Source
AI summary
A compartment door of a galley within an internal cabin of a vehicle (such as an aircraft) includes a front panel having a front outer surface, and a footstep system secured to the front panel. The footstep system is moveable between a retracted position and an extended support position. The footstep system is vertically oriented in the retracted position. The footstep system outwardly extends and folds to provide a step surface in the extended support position.