Rotating Locking Body for Emergency Cargo Net Release
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Solution Overview
Problem
Existing load securing nets often become difficult to open and unload due to high tensile stress, requiring cutting, which occurs frequently in parcel delivery operations.
Innovation Solution
Incorporation of emergency opening devices with a seat belt lock and latch plate that can be releasably locked, featuring a rotatably mounted blocking body allowing selective opening under high tensile stress, enabling access to secured loads without cutting the net.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If load securing nets are used to secure cargo with high tensile forces, then the cargo is securely held in place, but the net becomes difficult to open and unload requiring cutting
Solution Approach 1:
The locking body is designed to be rotatable between a locked position and an unlocked position, allowing the net to transition from a high-strength secured state to an easily opened state. The rotatable locking body enables dynamic switching between these two functional states without compromising the tensile strength during cargo securing.
Solution Approach 2:
The emergency opening device is integrated as a separate functional component within the load securing net structure. This segmentation allows the opening mechanism to be independently operated without affecting the overall structural integrity and tensile strength of the net when in the locked state.
2Force
If the net is designed to withstand very high loads, then cargo security is improved, but the net cannot be opened to remove the charge and has to be cut up
Solution Approach 1:
The locking body's rotatable design allows it to maintain a secure locked position under high load conditions while enabling easy rotation to an unlocked position for release. This dynamic mechanism ensures the net can withstand very high loads during transport while remaining easily openable at the destination without cutting.
3Reliability
If the locking mechanism is made secure to prevent accidental opening, then cargo security is maintained, but the net becomes difficult to open intentionally
Solution Approach 1:
The rotatable locking body provides a clear mechanical distinction between locked and unlocked states, ensuring reliable cargo securing while allowing intentional opening through deliberate rotation action. The rotational movement requires intentional user action, preventing accidental opening, yet remains simple to execute when needed.
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
Enables safe and efficient opening of load securing nets under high tensile stress, allowing for the removal of loads without damaging the net, reducing operational challenges in parcel delivery.
Implementation Method 1
a blocking body (16) which is designed such that the clear height allows the projection (12) to be pushed through the receiving slot (10) past the blocking body (16) in a first rotational position and prevents the projection (12) from moving past the blocking body (16) in a second rotational position
Data Source
Figure 1a~3
Figure 4~5
AI summary
An emergency opening device for a cargo securing net comprises a belt buckle and a buckle tongue that can be detachably locked together, the buckle tongue having a flat insertion section for insertion into the belt buckle along an insertion direction. According to the invention, the belt buckle has a locking element that is rotatably mounted about a pivot axis extending transversely to the insertion direction and whose rotational position limits the clear height of a receiving slot, the insertion section having a projection extending transversely to the insertion direction, and the locking element being designed such that, in a first rotational position, the clear height allows the projection to be pushed through the receiving slot past the locking element, and in a second rotational position, prevents the projection from moving past the locking element.