roll bar

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roll bar

n.
A sturdy metal bar over the top of a car or other wheeled vehicle to prevent or reduce injury in case of a rollover.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

roll′ bar`


n.
a steel bar arching over an automobile from side to side, designed to protect the passengers if the vehicle rolls over.
[1950–55]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

roll bar

Protective metal bar that arches over the driver in an open cockpit.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
Translations
References in periodicals archive ?
Prosecutors claim that he drove a Mercedes Sprinter panel van when it was "unsafe to do so" because the "antiroll bar link was insecure due to the nearside bracket being broken."
Uprated dampers, a new antiroll bar and stiffer springs help cope with all that extra power, as do the special tyres that are wider at the rear to provide extra grip for the blistering speed.
A strut brace has been fitted across the engine bay along with a fat 26mm antiroll bar.
To match the sportier performance there are stiffer shock absorbers, a larger diameter antiroll bar and a ride height that is 20mm lower than the normal Twingo.
Steering feel and responsiveness have been improved by the use of a new intermediate shaft, a revised antiroll bar and an increase in body shell rigidity through the use of a powerful urethane to bond the windscreen.
As a result, the suspension has been revamped and an antiroll bar added.
The antiroll bar allows loads to be transferred from the right to the left side of the suspension.
Some prefer to develop active suspension while some others prefer to focus on advancing the antiroll bar. However, from the manufacturers point of view, cost is the key factor.
The front module of conventional buses considered in this study employed an antiroll bar to enhance the roll stiffness of the vehicle.
A stiffer rear-axle antiroll bar and softer suspension gives a ride that is comfortable and precise but also a bit passionless.
The independent front suspension set-up features an antiroll bar and double acting gas-filled shock absorbers are used all round.