Rotatable Cargo Tie-Down Structure for Adjustable Vehicle Bed Retention
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Solution Overview
Problem
Existing cargo retaining systems in vehicles are not adjustable to accommodate cargo items of different sizes and shapes, and lack sufficient strength to withstand transport vibrations.
Innovation Solution
A rotatable and retractable cargo retaining system with a mounting plate, tie-down hook, and ratchet strap device, featuring adjustable holes and orifices, allowing for secure attachment and reorientation to fit various cargo configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If horizontal bars are mounted by the size of the bed, then the cargo can be retained during transport, but the system is not adjustable to accommodate cargo items of different sizes and shapes
Solution Approach 1:
The system divides the cargo retaining function into separate modular components: mounting plates with multiple holes, rotatable arms with multiple orifices, and tie-down hooks with multiple attachment points. Each component can be independently positioned and oriented to accommodate different cargo configurations, providing adjustability without requiring a completely different system structure.
Solution Approach 2:
The rotatable arm allows dynamic repositioning of the tie-down hook to different angles and positions. The arm can rotate to orient the hook in various directions, enabling the same structural components to serve multiple cargo configurations rather than requiring fixed-position hardware for each scenario.
2Strength
If tie-down anchors are mounted on bottom or side walls with straps and ratchets, then cargo can be retained, but the system does not have enough strength to support movement and vibration during transport
Solution Approach 1:
The rotatable arm provides dynamic positioning capability, allowing the tie-down hook to be oriented in multiple directions while maintaining secure attachment. This enables the strength of the anchor mounting to be utilized effectively regardless of cargo orientation, combining structural strength with directional adaptability.
Solution Approach 2:
The system combines multiple material properties and structural features: the mounting plate provides rigid structural support, the rotatable arm offers mechanical strength with rotational flexibility, and the tie-down hook provides secure attachment. This composite approach integrates strength and adaptability within a unified structural system.
3Adaptability or versatility
If the cargo retaining system uses fixed-position mounting, then the structure is simple, but it cannot rotate to accommodate different cargo orientations
Solution Approach 1:
The system segments the positioning function into discrete adjustable elements: multiple holes in the mounting plate for vertical positioning, a rotatable arm for angular orientation, and multiple orifices in the tie-down hook for final attachment positioning. This segmentation provides rotation and adaptability while keeping each individual component relatively simple.
Data Source
AI summary
A cargo retaining system adapted to be mounted on a vehicle bed including: a mounting plate adapted to be placed on a side wall of the vehicle bed; a tie-down hook secured to an opposite side wall of the vehicle bed; a ratchet strap device secured to the mounting plate; a plurality of holes located around the perimeter of the mounting plate; a plurality of orifices located in the central region of the mounting plate. The tie-down hook includes a flat section and a bended section. The flat section includes a plurality of perforations. The bended section includes a plurality of holes and the ratchet strap device includes a strap having a first end secured to the ratchet strap device and a free end with a hook that connects and disconnects to the plurality of holes of the bended section of the tie-down hook.