Wall Securement Device for Heavy Cargo Lashing
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Solution Overview
Problem
Current methods for securing cargo in ocean shipping containers, relying on lashing and anchor points, face limitations due to rust, wear, and deformation, restricting the weight of cargo that can be secured and leading to regulatory issues and increased costs, with existing systems being cumbersome and not suitable for heavy loads.
Innovation Solution
A method and device using wall securement devices with apertures in the corner profiles of containers, allowing for easy and secure lashing of cargo with straps, providing a reliable and cost-effective alternative that can handle heavier loads and comply with regulatory standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional lashing points (D-rings) are used for securing cargo, then the cargo can be secured to prevent shifting, but the maximum weight is limited to 500-1000 daN per lashing point due to rust, wear, and deformation
Solution Approach 1:
The invention extracts the securing function from the conventional D-ring lashing points and relocates it to the corner posts of the container. By positioning securing devices directly on the corner posts, the system bypasses the weakened D-rings and utilizes the stronger corner post structure, thereby increasing both strength and reliability of the lashing system
Solution Approach 2:
The invention introduces corner post-mounted securing devices as intermediary elements between the cargo and the container structure. These securing devices serve as mediators that transfer loads from the cargo through the corner posts to the container frame, bypassing the unreliable D-ring lashing points while maintaining secure cargo restraint
2Stability of the object's composition
If multiple lashing and anchor points are used to secure cargo against shifting, then cargo stability is improved, but the complexity of the securing system increases with substantial amounts of strapping material
Solution Approach 1:
The invention merges the functions of multiple lashing points into integrated securing devices mounted on the corner posts. Each corner post device combines anchor point, lashing point, and structural support functions into a single unit, reducing the number of separate components and strapping materials needed while maintaining cargo stability
Solution Approach 2:
The corner post securing devices serve multiple functions simultaneously: they act as anchor points for lashing, provide structural support for the cargo, and enable securing in multiple directions. This multi-functionality reduces the need for separate dedicated components for each function, simplifying the overall securing system
3Ease of operation
If conventional D-ring lashing points are used, then cargo can be secured, but the process is cumbersome and time-consuming due to the need for multiple straps in vertical and horizontal directions
Solution Approach 1:
The invention segments the securing system into discrete corner post-mounted devices that can be independently installed and used. Each corner post device is a self-contained unit that simplifies the lashing operation, allowing workers to secure cargo by attaching straps to these pre-positioned devices rather than navigating complex arrangements of multiple D-rings and straps
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 2D~2E
AI summary
The current invention concerns a method and device for securing cargo load in a container. In an embodiment of the current invention, such method comprises: • - providing a wall securement device (1) comprising two or more apertures allowing the passage of securing means such as straps, which wall securement device is attached to an inner rigid structure of the wall; and • - lashing the cargo load with securing means by use of the wall securement device, whereby the wall securement device is located at the corner post of said container. In a second aspect, the current invention provides for a wall securement device for securing loads.