Adjustable Front Wheel Assemblies for Utility Vehicle Stability
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Solution Overview
Problem
Utility vehicles face instability when engaging attachments of different weights, leading to reduced performance and traction, especially on uneven terrain, due to unbalanced load distribution and varying attachment locations.
Innovation Solution
The vehicle features adjustable front wheel assemblies that allow for independent adjustment of wheel stance and wheel base, enabling optimal balance of the overhung load relative to the vehicle and operator, thereby enhancing stability and traction by changing the lever arm length and pivot point for different attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the wheel base and wheel stance are fixed, then the vehicle structure is simple, but the vehicle becomes unstable when engaging attachments of different weights
Solution Approach 1:
The patent applies the dynamics principle by making the front wheel assemblies adjustable rather than fixed. The wheel assemblies can be repositioned along the frame to change the wheel base distance, and the lateral position can be adjusted to change the wheel stance. This dynamic adjustment capability allows the vehicle to adapt its stability characteristics to match different attachment weights and operating conditions, resolving the contradiction between vehicle stability and structural simplicity.
2Reliability
If the front wheel assemblies are made adjustable to balance overhung load, then vehicle stability improves, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the front wheel assembly into separable components that can be independently adjusted. The wheel assembly includes a wheel, an axle, and mounting structures that can be repositioned relative to the frame. This segmentation allows flexible adjustment of both wheel base and wheel stance to optimize attachment performance while managing the complexity through modular design.
3Ease of operation
If the wheel base is shortened to improve agility, then the vehicle becomes more responsive, but traction may be compromised
Solution Approach 1:
The patent resolves the contradiction between agility and traction by making the wheel base adjustable. When agility is needed, the front wheel assemblies can be positioned closer to the rear wheels, shortening the wheel base for quicker response. When traction is needed, especially when engaging heavy attachments, the front wheel assemblies can be positioned farther apart to lengthen the wheel base, improving stability and traction. This dynamic reconfiguration allows optimal performance for different operating conditions.
Data Source
AI summary
A utility vehicle with adjustable wheel assemblies to accommodate different weight attachments selectively engageable with the vehicle. Adjustment assemblies are provided to engage each of the front wheel assemblies. Each adjustment assembly includes a guide plate, a first arm of a first length and a second arm of a second length. The operator will select the appropriate one of the first and second arms to secure to the guide plate and to one of the front wheel assemblies. The guide plates include holes therein for locking the selected one of the arms in a particular orientation. This is accomplished by inserting a pin through an aperture in the selected first or second arm and one of the holes in the guide plate. A first end of the selected first or second arm is secured to the guide plate and a second end thereof is engaged with the associated wheel assembly.