Rear Track Assembly with Transverse Reinforcement Rods
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Solution Overview
Problem
Existing track systems for All-Terrain Vehicles (ATVs) and Side-by-Side vehicles are not optimized for traction in certain terrains like mud, snow, and sand, leading to suboptimal performance, and increasing motor horsepower may not provide desired improvements in deep snow conditions.
Innovation Solution
A track assembly with a specific range of track lengths, traction lug heights, and frame dimensions, combined with features like transverse reinforcement rods and L-shaped clips, is designed to enhance traction and performance by leveraging the propulsion mechanism differences between ATV/Side-by-Side vehicles and snowmobiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the horsepower of the vehicle's motor is increased to improve acceleration, then vehicle power increases, but the cost increases and performance improvement may not be achieved in deep snow conditions
Solution Approach 1:
The patent changes the track length parameter to a specific range (120-180 inches) and traction lug height parameter (2-4 inches) to optimize propulsion efficiency. This allows the vehicle to achieve better acceleration and traction in deep snow without increasing motor horsepower, thereby avoiding the cost increase associated with higher power motors while still improving performance in challenging conditions.
2Reliability
If the track length is increased to improve traction in deep snow, then propulsion efficiency improves, but the device complexity increases
Solution Approach 1:
The patent specifies a track length within the range of 120-180 inches and traction lug height within 2-4 inches. These parameter ranges are optimized to provide sufficient traction in deep snow conditions while avoiding excessive track length that would complicate the suspension system, increase weight, and require more complex support structures. The balanced parameter selection maintains reliability without proportionally increasing device complexity.
3Reliability
If the frame height is increased to improve performance in certain driving conditions, then vehicle performance improves, but the device complexity increases
Solution Approach 1:
The patent specifies an effective frame height within the range of 17-20 inches. This parameter range is optimized to provide adequate clearance and performance in various driving conditions including deep snow, while avoiding excessive frame height that would require more complex suspension geometry, increase overall vehicle height, and complicate the integration with the vehicle chassis. The balanced parameter selection improves performance without proportionally increasing frame structure complexity.
Data Source
AI summary
A track assembly mountable to a rotatable rear axle of a vehicle includes a frame, a drive wheel rotationally mounted to the frame and being structured to be attached to the axle of the vehicle, a front idler wheel and a rear idler wheel assemblies mounted to the frame, and a track. The track has an inner surface facing the drive wheel, and an outer surface opposite the inner surface. The outer surface has a plurality of traction lugs distributed along the outer surface. The track includes a plurality of longer transverse reinforcement rods distributed therethrough and a plurality of shorter transverse reinforcement rods distributed therethrough. The shorter transverse reinforcement rods are shorter in length than the longer transverse reinforcement rods. Each of the longer and shorter transverse reinforcement rods is aligned along at least a part of its length with at least one of the traction lugs.