Offset Slot Strap Connector for Cargo Immobilization
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Solution Overview
Problem
Existing methods for securing loads or cargo, such as cargo nets and tensioned straps, fail to fully immobilize loads of varying shapes and sizes, leading to potential shifting during transport due to inability to confine the majority of the load's surface area or adjust internally.
Innovation Solution
A connector system comprising a body with four arms and offset slots allows for the coupling of straps to create a net-like system that can be adjusted and tensioned to securely enclose loads of different sizes, using offset openings to distribute tension evenly and prevent strap cutting or tearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If cargo nets are used to confine the majority of the surface area of a load, then the load is covered extensively, but the cargo nets cannot be tensioned or re-tensioned to fully secure and immobilize the load
Solution Approach 1:
The cargo net is segmented into multiple adjustable straps that can be independently tensioned. The net structure is divided into modular sections connected by adjustable connectors, allowing each strap to be tensioned separately to secure different portions of the load effectively.
Solution Approach 2:
The cargo net incorporates dynamic adjustment mechanisms that allow the net to be tensioned and re-tensioned as needed. The adjustable connectors enable the net to adapt to different load sizes and shapes, providing ongoing security and immobilization capability throughout transport.
2Reliability
If individual straps are tensioned to fully secure and immobilize a load, then the load is secured as a whole, but the straps cannot confine the majority of the surface area of a load
Solution Approach 1:
The invention merges the advantages of both cargo nets and individual straps by combining a net structure with adjustable strap tensioning mechanisms. This hybrid system provides both extensive surface area coverage from the net structure and effective immobilization from the tensioned straps working together.
Solution Approach 2:
The adjustable strap system serves multiple functions: it provides surface area coverage like a net, enables tensioning and immobilization like individual straps, and can be adjusted to accommodate various load sizes and shapes. The same system performs both confinement and securing functions.
3Device complexity
If cargo nets are used without internal adjustment capability, then the net structure is simple, but different sized cargo nets are required for various shaped or sized loads
Solution Approach 1:
The cargo net incorporates dynamic adjustment mechanisms that allow the net to be tensioned and re-tensioned as needed. The adjustable connectors enable the net to adapt to different load sizes and shapes, providing ongoing security and immobilization capability throughout transport.
4Strength
If offset openings are used in the slots, then tension is distributed evenly and strap cutting or tearing is prevented, but the connector structure becomes more complex
Solution Approach 1:
The connector employs asymmetric slot designs with offset openings that are strategically positioned to distribute tension forces evenly across the strap. The asymmetric geometry of the slots and offset openings creates optimal force distribution patterns that prevent strap failure while maintaining connector strength.
Data Source
AI summary
Described are connectors comprising: a body; at least four arms extending from the body; a first pair of opposing, substantially closed slots along a first axis of the body, wherein each slot is defined by one or more of the at least four arms and an edge of the body; and a second pair of opposing, substantially closed slots along a second axis of the body, wherein each slot is defined by one or more of the at least four arms and an edge of the body; wherein, each slot comprises an opening defined by at least two of the at least four arms; and wherein, the openings of the first pair of opposing, substantially closed slots are offset and the openings of the second pair of opposing, substantially closed slots are offset. Methods of coupling straps together via such connectors, and the resulting net-like structure, are also described.