Coated Warp-Yarn Strap for Side-Curtain Tensioning and Load Stability
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Solution Overview
Problem
Side-curtain trailers experience load shift during transportation, leading to instability and safety risks due to the lack of effective restraints that compromise access and efficiency, as existing solutions like load coating straps or metal gates either fail to provide sufficient strength or flexibility.
Innovation Solution
A strap design featuring warp yarns with a higher linear mass density than weft yarns, interleaved in a specific sequence and coated to maintain a substantially straight configuration, providing enhanced strength and flexibility for tensioning vehicle side curtains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heavy duty material is used to manufacture curtains to provide sufficient strength, then the strength is improved, but the flexibility and ease of operation deteriorates
Solution Approach 1:
The curtain system is segmented into multiple functional components: the curtain fabric itself, separate tensioning straps with buckles, and attachment hardware. This allows the heavy-duty curtain to provide strength while the separate straps handle the tensioning and adjustment operations, making the system easier to operate despite using strong materials.
Solution Approach 2:
Straps with buckles serve as intermediary elements between the curtain and the trailer frame. These straps transfer and distribute the tensioning forces, allowing the curtain material to focus on providing strength and closure while the intermediary straps handle the mechanical adjustment and tensioning operations.
2Stability of the object's composition
If additional gate or barrier structures are added to prevent load shift, then the stability is improved, but the device complexity and access time increases
Solution Approach 1:
The tensioning straps serve multiple functions: they secure the curtain to the trailer frame, prevent load shift by creating tension across the curtain, and allow for easy adjustment and removal. This multi-functionality eliminates the need for separate gate or barrier structures, maintaining stability while reducing device complexity.
Solution Approach 2:
The strap system is dynamic and adjustable, allowing operators to quickly tension or release the curtain as needed. Unlike fixed gates or barriers, the straps can be rapidly adjusted to different positions and tension levels, providing stability when needed while allowing quick access when the curtain is released.
3Strength
If the curtain is made inflexible to provide strength, then the strength is improved, but the ease of operation deteriorates
Solution Approach 1:
The system separates the strength-providing function (curtain fabric) from the operation function (straps with buckles). The heavy-duty curtain material provides strength while the separate adjustable straps handle the drawing and tensioning operations, making the overall system easier to operate despite using strong, less flexible materials.
Data Source
AI summary
In summary, the invention is directed to a strap for tensioning a vehicle side curtain, the strap comprising: a strap body having a plurality of warp yarns and a weft yarn, the weft yarn being interleaved with each of the plurality of warp yarns, wherein the warp yarns are tensioned in a substantially straight configuration; and a coating to retain the warp yarns in their straight configuration.