Vehicle Grab Bar Side-Mounted Grip Design
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Solution Overview
Problem
In off-road vehicles with multiple passenger seats, passengers in center seats face difficulty in holding the grab bar due to its placement, leading to reduced riding comfort and increased sway during vehicle motion.
Innovation Solution
The vehicle design includes a grab bar positioned closer to the third seat portion, with a first grip portion in front of the second seat portion, allowing easy access and reducing obstruction for the driver, and a second grip portion at a higher position for the third seat, providing comfortable access and egress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the grab bar is positioned in front of the passenger seat to support the passenger, then the passenger can hold the grab bar, but the driver's view and operation are obstructed
Solution Approach 1:
The grab bar is repositioned from a horizontal arrangement in front of the passenger seat to a vertical arrangement at the side of the passenger seat. This dimensional change allows the passenger to access the grab bar at shoulder height without obstructing the driver's view or operation, resolving the spatial conflict between passenger support and driver accessibility.
2Quantity of substance
If additional passenger seats are added to increase carrying capacity, then more passengers can be transported, but passengers in center seats cannot easily access the grab bar
Solution Approach 1:
By moving the grab bar from a front-facing horizontal position to a side-mounted vertical position, center seat passengers can now access the grab bar from their side without needing to reach forward over other passengers. This dimensional repositioning enables easy access for passengers in previously inaccessible center seats while maintaining the vehicle's multi-passenger capacity.
3Ease of operation
If the grab bar is positioned high to be accessible for standing passengers, then it supports standing passengers, but it becomes obstructive for seated passengers and driver
Solution Approach 1:
The grab bar is positioned at a specific height corresponding to the shoulder level of seated passengers rather than being placed high for standing passengers. This localized positioning optimizes the grab bar's utility for the primary seated passenger群体 while eliminating obstructions to both the driver and seated passengers, creating a locally optimized solution for the vehicle's main operating condition.
Data Source
AI summary
A vehicle includes a pair of front wheels, a pair of rear wheels, a frame portion, a first seat portion, a second seat portion, a third seat portion, a steering wheel, and a grab bar. The first seat portion, the second seat portion and the third seat portion are supported by the frame portion and are disposed side by side in this order in a width direction of the vehicle. The steering wheel is in front of the first seat portion. The grab bar is on a side closer to the third seat portion in the width direction of the vehicle when viewed from the steering wheel. The grab bar includes a first grip portion in front of the second seat portion.