Swivel Hook Tie Down Preventing Strap Twist
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tie-downs twist and kink when securing cargo, slowing down the fastening and unfastening process due to their single continuous design.
Innovation Solution
A swivel coupling with trapezoidally shaped segments and a swivel hook that allows for rotatable movement, preventing twisting of restraining straps by allowing them to rotate relative to each other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single continuous strap is used for tie-down, then the structure is simple, but the strap twists and kinks during use which slows down the fastening and unfastening process
Solution Approach 1:
The single continuous strap is divided into multiple separate segments (first strap, second strap, third strap, fourth strap) that can move independently. Each strap segment is connected through swivel couplings, allowing them to rotate and adjust independently, preventing twisting and kinking while maintaining structural simplicity.
2Device complexity
If a single continuous strap is used for tie-down, then the device complexity is low, but the strap twisting diminishes the speed by which cargo may be fastened and unfastened
Solution Approach 1:
The tie-down system incorporates dynamic elements through swivel couplings that allow the strap segments to rotate and adjust their orientation in real-time during fastening and unfastening operations. This dynamic capability prevents twisting and enables faster operation without significantly increasing device complexity.
3Strength
If conventional tie-downs are used, then the securing means can be tightened, but the strap twists as cargo moves or securing means is tightened which slows down the process
Solution Approach 1:
The tie-down system uses multiple independent strap segments connected by swivel couplings, allowing each segment to adjust independently as cargo moves or securing means are tightened. This segmentation prevents twisting while maintaining strong securing capability and enables faster operation.
Data Source
AI summary
A swivel coupling is provided for connecting a multi-piece restraint having two trapezoidally shaped segments capable of rotating with respect to each other. Each segment includes rectangular and multiple cylindrical portions with one being orthogonal to the segment and having an orifice for receiving a connecting means to join the segments. In another embodiment, one segment is joined to an attachment having a hook that includes a base portion and a hook portion where the base portion includes an orthogonal cylindrical portion having an orifice for receiving a connecting means that extends through the orifice and through the second orifice of the segment.