Container Lashing Straps With Tuned Length and Stiffness
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Solution Overview
Problem
Existing lashing systems for securing loads in containers often result in uneven support due to varying strap stretch, leading to potential damage and safety hazards during transport.
Innovation Solution
A system comprising multiple groups of lashing straps with varying effective lengths and stiffness, strategically secured to lashing points on the container floor and ceiling, ensures equal force distribution across the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If straps of uniform length are used for lashing, then the lashing system is simple to implement, but the load is not equally supported due to varying strap stretch
Solution Approach 1:
The patent applies local quality by differentiating strap properties based on their position and function. Straps are categorized into first group straps (for securing front portion of load) and second group straps (for securing rear portion of load), with each group having specific effective lengths and stiffness values tailored to their location. This localized differentiation ensures that each strap group compensates for position-specific stretch characteristics, achieving equal load support throughout the container.
2Reliability
If straps with different effective lengths are used, then equal force distribution is achieved, but the device complexity increases
Solution Approach 1:
The lashing system is segmented into distinct functional groups: first group straps with a first effective length for the front portion of the load, and second group straps with a second effective length for the rear portion. This segmentation allows each group to be optimized independently for its specific location, managing complexity through systematic categorization while achieving the goal of equal force distribution across the entire load.
Solution Approach 2:
The patent changes key parameters of the straps, specifically effective length and stiffness, to optimize performance. First group straps have different effective lengths and stiffness values compared to second group straps. By adjusting these parameters based on position, the system achieves equal force distribution without requiring complex active control mechanisms, thereby managing device complexity through parameter optimization.
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 system provides consistent and equal support to the load, enhancing safety and preventing damage by ensuring that all forces exerted on the load are evenly distributed.
Implementation Method 1
the straps of said first group have an effective stiffness which is different from said second group
Data Source
AI summary
The current invention relates to a system and method for lashing a load in a container. More particular, the present invention provides a system for lashing a load in a container, wherein said system comprises at least a first group and a second group of woven lashing straps, wherein within each group the straps have the same length, and wherein the length of the straps of said first group is greater than the length of the straps of the second group and wherein the straps the first group of straps have a stiffness which is different from said second group.