Retractable Cargo Deck Guide Assembly for Flush Pallet Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cargo aircraft guide systems either encroach on the working volume with non-retractable guides or require special tools for retractable mechanisms, posing hazards and inefficiencies during on-ground loading operations.
Innovation Solution
A retractable guide assembly that self-centers pallets without obstructing the cargo deck, stows flush with the floor when not in use, and operates without the need for special tools, featuring a support subassembly, moveable guide subassembly, and actuator subassembly to pivot between stowed, deployed, and maintenance conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If non-retractable guides are used above the cargo area deck, then guidance function is provided, but the guides encroach into the working volume of the cargo aircraft
Solution Approach 1:
The guide assembly is designed to be retractable rather than fixed, allowing it to dynamically change position between deployed and stowed states. The movable subassembly can pivot between a deployed position where guide surfaces are accessible and a stowed position where the entire assembly retracts beneath the cargo floor, eliminating encroachment on working volume while maintaining guidance functionality when needed
2Area of stationary object
If retractable guide mechanisms are used, then the working volume is preserved, but special hand tools are required for handling operations
Solution Approach 1:
The guide assembly incorporates a self-actuating mechanism that uses the weight and movement of the pallet itself to trigger deployment and retraction. When a pallet is pushed against the guide assembly during loading, the force automatically pivots the guide into its deployed position. After loading, the guide automatically retracts without requiring manual intervention or special tools, eliminating the operational complexity introduced by traditional retractable mechanisms
3Ease of operation
If guides are located above the cargo floor, then guidance is provided, but they pose hazards and obstructions during aerial delivery operations and personnel movement
Solution Approach 1:
The guide assembly transitions from a static above-floor position to a dynamic system that retracts beneath the cargo floor when not in use. The movable subassembly pivots to position the guide surfaces above the floor only during active loading operations, and retracts completely below the floor surface during aerial delivery and personnel movement, eliminating hazards and obstructions while preserving guidance functionality 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 solution enhances operational safety and efficiency by maintaining a clear working area, eliminating the need for special tools, and ensuring proper pallet alignment during loading and storage without obstructing aerial operations or personnel movement.
Implementation Method 1
a moveable guide subassembly pivotally connected to the support subassembly so as to be pivotally moveable relative thereto
Implementation Method 2
an actuator subassembly operatively interconnecting the moveable guide subassembly and the support subassembly
Data Source
AI summary
Retractable guide assemblies are provided to guide cargo load pallets onto a cargo deck of a cargo aircraft, the guide assembly having a support subassembly comprising a recessed housing box, a moveable guide subassembly pivotally connected to the support subassembly so as to be pivotally moveable relative thereto, and an actuator subassembly operatively interconnecting the moveable guide subassembly and the support subassembly. The actuator subassembly may thereby allow the moveable guide subassembly to be pivotally moveable between (i) a releasably locked stowed condition, (ii) a releasably locked deployed condition and (iii) a freely moveable unlocked maintenance condition.