Pivoting Cargo Lashing Assembly for Flexible Aircraft Loading
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Solution Overview
Problem
Existing cargo loading systems in aircraft lack flexibility in arranging diverse cargo loads, particularly for non-standardized items, and require additional fastening options for passenger seats, leading to inefficiencies in loading time and personnel requirements.
Innovation Solution
A lashing device with pivotable lashing elements that can be secured individually or as a unit, allowing multiple chains or straps to be attached, distributing load capacity across multiple points, thereby increasing flexibility and load distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single lashing ring is used per lashing point, then the structure is simple and easy to manufacture, but the flexibility in arranging diverse cargo loads is limited
Solution Approach 1:
The lashing device is segmented into a main body and multiple detachable lashing elements (at least two). These elements can be individually attached or detached from the main body, allowing flexible configuration for different cargo arrangements while maintaining a simple base structure when not in use.
Solution Approach 2:
The lashing elements are designed to be pivotable about a pivot axis, transitioning between a stowed position (aligned with the pivot axis) and an extended operational position. This dynamic capability allows the same structure to adapt to different cargo configurations without requiring multiple fixed lashing points.
2Adaptability or versatility
If multiple lashing elements are added to increase cargo arrangement flexibility, then the adaptability improves, but the device complexity increases
Solution Approach 1:
Multiple lashing elements are merged into a single integrated lashing device with a common main body and shared pivot axis. This allows multiple lashing functions to be achieved through one compact unit rather than requiring separate lashing rings distributed throughout the cargo hold.
Solution Approach 2:
The main body serves multiple functions: it provides the mounting structure for lashing elements, acts as a load-bearing component, and functions as a securing point for chains or straps. The same lashing device can accommodate different cargo types (standardized containers, non-standardized goods, passenger seats) using the same basic structure.
3Productivity
If lashing points are distributed numerous and at equal distances, then the structural coverage is improved, but the loading time increases due to more fastening operations
Solution Approach 1:
The lashing elements are segmented and can be independently operated. This allows operators to attach or detach only the specific number of lashing elements needed for each cargo item, rather than having to secure multiple fixed lashing points for every load.
Solution Approach 2:
The lashing elements are pre-mounted on the main body in a stowed position, ready for quick deployment. When cargo needs to be lashed, the elements are simply pivoted into position and attached to chains or straps, eliminating the need for complex assembly operations during loading.
Data Source
AI summary
A lashing device for a cargo loading system of a means of transport, in particular an aircraft, includes a main body for load bearing and securing to a supporting structure, and at least two lashing elements for lashing loads or goods. The at least two lashing elements are mounted on the main body to be pivotable about a pivot axis and are designed to be lashable in each case individually or as a unit. An aircraft is disclosed having the lashing device.