Variable-Load Spring Arm for Trailer Sway and Weight Distribution
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Solution Overview
Problem
Existing weight distribution systems for towing vehicles face challenges in accommodating different towed vehicles, are difficult to assemble, require multiple spring bars for varying loads, and experience issues with composite-metal interfaces, leading to limitations in form and material performance.
Innovation Solution
A weight distribution system featuring a variable load rating spring arm that can be operatively engaged between plate members of a ball mount, secured with a pin, and selectively attached to both the towing and towed vehicles, allowing for adjustable sway control and weight distribution through mechanisms that include friction pads and adjustable orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional weight distribution systems use fixed spring bars, then they can provide stable weight distribution for specific load conditions, but they require multiple different spring bars to accommodate varying loads and different vehicles
Solution Approach 1:
The spring bar incorporates an adjustable mechanism that allows users to modify the spring bar's characteristics (such as stiffness or length) to match different load conditions and vehicle configurations. This dynamic adjustability replaces the need for multiple fixed spring bar variants, enabling a single spring bar design to serve multiple purposes across varying towing scenarios.
Solution Approach 2:
The spring bar is designed with universal adaptability features that enable it to function effectively across a wide range of load conditions and vehicle types. Through integrated adjustment mechanisms and standardized interfaces, the spring bar can be configured to suit different towing requirements, eliminating the need for vehicle-specific or load-specific spring bar variants.
2Reliability
If weight distribution systems use composite materials, then they can reduce weight and improve corrosion resistance, but they face challenges at interfaces with metal components including wear, bearing loads, and fastening issues
Solution Approach 1:
The design introduces intermediary elements or transition zones at the composite-metal interfaces that mediate between the composite spring bar and metal components. These intermediaries may include specialized bonding layers, friction-reducing coatings, or mechanical transition features that distribute loads more evenly and reduce wear at the critical interface zones, thereby maintaining the corrosion resistance benefits of composites while eliminating interface-related problems.
3Ease of operation
If weight distribution systems are designed for easy assembly, then they can reduce installation time and complexity, but they may compromise on adjustment capabilities for different configurations
Solution Approach 1:
The spring bar incorporates pre-configured adjustment mechanisms and pre-positioned features that allow users to make necessary adjustments for different configurations during the assembly process itself, rather than requiring separate adjustment steps after installation. This preliminary integration of adjustment capabilities into the assembly process maintains ease of installation while preserving full adaptability for different towing scenarios.
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 easy assembly, customizable sway control, and effective weight distribution across various towing and towed vehicles, enhancing vehicle stability and reducing sway by utilizing composite and metal components effectively.
Implementation Method 1
spring arm (or spring bar) configured to be operatively engaged between plate members of a ball mount
Implementation Method 2
spring arm (or spring bar) configured to be operatively engaged between plate members of a ball mount
Implementation Method 3
control sway of the towed vehicle relative to the towing vehicle
Data Source
AI summary
The present invention relates generally to a weight distribution system, and; more specifically, the present invention relates to a system of distributing weight of a towed vehicle to a towing vehicle and controlling sway of the towed vehicle relative to the towing vehicle. In one embodiment, the present invention relates to various different embodiments of a variable load rating spring arm (or spring bar) for a weight distribution systems.