Quick Release Lever Mechanism for Aerial Lashing Tension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing aerial delivery lashing systems lack a quick and efficient means to de-tension and disconnect the load binder, resulting in prolonged derigging times due to residual tension in the webbing.
Innovation Solution
A quick release assembly comprising a main body, cover member, pin, and lever, which allows for easy de-tensioning and disconnection by pivoting the lever to move the pin within the main body, enabling the release of the strap from the D-shaped ring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional load binders are used to tension the lashing strap, then the lashing system can securely restrain the payload, but the residual tension prevents the load binder from being opened and disconnected
Solution Approach 1:
The quick release assembly is divided into separate functional components: a main body, a movable pin, and a lever mechanism. This segmentation allows the pin to be independently actuated by the lever to release the strap, separating the tensioning function (load binder) from the releasing function (quick release assembly), thereby enabling easy disconnection even under tension.
Solution Approach 2:
The pin is designed to be movable rather than fixed, allowing it to shift position in response to lever actuation. This dynamic element enables the transition from a locked state (pin blocking the strap) to an unlocked state (pin retracted), providing quick release capability while maintaining secure restraint during operation.
2Device complexity
If conventional lashings are used without quick disconnect members, then the structure is simpler, but the derigging time is prolonged due to the need to manually de-tension and remove components
Solution Approach 1:
The quick release assembly is pre-configured with the pin in a locked position that automatically secures the strap when assembled. The lever mechanism is pre-positioned to enable immediate release action. This preliminary setup eliminates the need for sequential manual operations (de-tensioning, then disconnecting) and allows for instant release, dramatically reducing derigging time despite the added structural complexity.
3Speed
If the pin is made movable to enable quick release, then the disconnection speed increases, but the device complexity increases due to additional moving parts
Solution Approach 1:
The lever and pin are integrated into a single actuation system where the lever directly manipulates the pin's position. This merging of components reduces the number of separate moving parts compared to systems with independent release mechanisms. The combined lever-pin assembly provides quick release functionality while minimizing structural complexity through functional integration.
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 quick release system reduces derigging time by providing a simple mechanism to disconnect the lashing system, allowing for rapid release of payloads from aerial delivery platforms with minimal effort, even under high tension conditions.
Implementation Method 1
The lever is mounted at the opening of the main body. A first end of the lever is at the slot, and a second end of the lever extends from a side of the main body. The pin is configured to move between the first and second ends in response to pivoting of the lever.
Data Source
AI summary
Disclosed herein is a quick release assembly. The quick release assembly includes a main body, a cover member, a pin, and a lever. The main body has a first end, a second end, and an opening between the first and second ends. The first end includes a first receiving portion. The second end includes a second receiving portion. The cover member is between the first and second ends. The pin is disposed between the main body and the cover member. The pin includes a slot. The lever is mounted at the opening of the main body. A first end of the lever is at the slot, and a second end of the lever extends from a side of the main body. The pin is configured to move between the first and second ends in response to pivoting of the lever.