Cargo Net Restraint for Overhanging Vehicle Loads
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Solution Overview
Problem
Conventional cargo nets fail to adequately secure elongated loads that extend beyond the cargo area of a vehicle, leading to potential loss and safety hazards.
Innovation Solution
A cargo net system comprising horizontal and vertical straps with reinforced cables forming attachment points, combined with adjustable tie-down straps, secures overhanging loads by anchoring to vehicle mounts, and includes a signaling device for visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cargo nets are used to secure loads, then the cargo area is covered, but the overhanging portion of elongated cargo cannot be adequately retained
Solution Approach 1:
The cargo restraint system is divided into distinct functional segments: a cargo net for covering the cargo area, extended straps for securing the overhanging portion, and separate attachment points for different locations. This segmentation allows each component to specialize in restraining specific portions of elongated cargo, resolving the contradiction between reliable retention and adaptability to extended loads.
Solution Approach 2:
The invention extends the restraint system beyond the two-dimensional cargo bed area into the third dimension by incorporating straps that reach outward to secure cargo extending beyond the vehicle boundaries. The horizontal straps extend laterally beyond the cargo net perimeter, creating a three-dimensional restraint envelope that captures overhanging loads.
2Area of stationary object
If the cargo net is made larger to cover overhanging cargo, then coverage is improved, but the net becomes difficult to store when not in use
Solution Approach 1:
The restraint system is segmented into a compact cargo net portion and separate extendable strap portions. When not in use, the straps can be detached or folded back, allowing the net to be stored in a compact form despite providing extensive coverage when deployed. This segmentation resolves the contradiction between large coverage area and ease of storage.
Solution Approach 2:
The straps are designed to be dynamically extendable and retractable, transitioning between a compact stored state and an extended deployed state. The horizontal straps can be extended beyond the net perimeter during use and retracted or folded during storage, providing variable dimensions that resolve the contradiction between coverage area and storability.
3Strength
If reinforced cables are added to form attachment points, then the securing strength is improved, but the device complexity increases
Solution Approach 1:
The reinforced cables serve multiple functions: they strengthen the net structure, provide attachment points for straps, and create secure anchoring locations for cargo. By making the cables multi-functional, the invention increases securing strength without proportionally increasing device complexity, as the same structural elements perform multiple roles.
Solution Approach 2:
The invention merges the reinforcement function with the attachment function by integrating cable reinforcements directly into the net structure at strategic locations where straps need to attach. This combination eliminates the need for separate reinforcement plates or additional attachment hardware, maintaining simplicity while providing both strength and attachment capability.
Data Source
AI summary
An apparatus and system for securing elongated cargo extending beyond a vehicle bed. The apparatus comprises a flexible net with perpendicular webbing straps forming a grid structure. Reinforced loops extend from the net perimeter, and adjustable tie-down straps couple the loops to the vehicle bed. A central attachment point mounts a signalling device. The system restrains overhanging cargo against the bed, preventing loss during transport. The net and straps are removably coupled, allowing easy installation, removal, and storage. The invention provides an effective solution for securing loads inadequately retained by conventional restraints, enhancing safety and reducing cargo loss risk.