Telescopic Roll-Over Guard for ATV
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Solution Overview
Problem
All-terrain vehicles and similar vehicles can accidentally roll over, leading to the rider being pinned between the vehicle and the ground, causing serious injury due to the lack of effective roll-over protection systems.
Innovation Solution
A roll-over protection system comprising an elongate guard with a lower and upper region, mounted to the vehicle to prevent it from rolling upside down, featuring a shape that encourages sliding over rolling, made of suitable materials like metal, and adjustable to fit various vehicles, with mounts allowing for movement relative to the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an elongate roll-over guard is mounted to extend upwardly from the vehicle, then the vehicle is prevented from rolling upside down, but the guard may dig into the ground when upside down causing additional injury risk
Solution Approach 1:
The upper region of the roll-over guard is formed with a curved or rounded configuration instead of sharp angles. This curvature prevents the guard from digging into the ground when the vehicle rolls over, allowing it to slide along the ground surface while still maintaining effectiveness in preventing complete upside-down positioning of the vehicle.
2Reliability
If the guard extends upwardly from the vehicle to provide protection, then rider safety is improved, but the guard may interfere with normal vehicle operation when travelling through bushland
Solution Approach 1:
The roll-over guard is designed with selective height distribution along its length. The upper region has a reduced height or curved profile in areas that might contact vegetation during normal operation, while maintaining sufficient height in critical protection zones. This localized variation in geometry allows the guard to provide adequate rider protection without interfering with maneuverability through bushland.
3Strength
If the guard is made of rigid material to ensure structural strength, then protection effectiveness is improved, but the guard may cause more severe impact when the vehicle rolls over
Solution Approach 1:
The roll-over guard incorporates material or structural parameter variations along its length. The lower region uses higher strength materials or thicker sections to ensure structural integrity during normal operation and initial rollover contact. The upper region uses lower strength materials or thinner sections that can deform more easily, reducing impact severity when the vehicle rolls over while still maintaining overall guard effectiveness.
Data Source
AI summary
A roll-over protection system (1) for a vehicle (2), such as a quad bike. The system (1) comprises a telescopic hairpin-shaped roll-over guard (3), a lower mount (4) and an upper mount (5) for mounting the guard (3) to regions of the vehicle (2) that may move relative to each other. In use, the guard (3) extends upwardly from the vehicle (2) so as to prevent the vehicle (2) from remaining upside down after having turned over, and the mounts (4, 5) are moveable relative to the guard (3) when the two spaced apart regions move relative to each other during normal use of the vehicle (2).