roll bar

American  

Or rollbar

noun

1. a heavy steel transverse bar in the form of an inverted U rising from the framework of an automobile to prevent its occupants from being crushed if the vehicle rolls over.

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Etymology

Origin of roll bar

First recorded in 1950–55

Example Sentences

Last season, drivers tested a Y-shaped roll bar, called the halo, encircling the cockpit.

From New York Times • May 27, 2017

The lavender 911 I’m testing has the big brakes, sports seats, roll bar, and leather-swathed everything.

From The Verge • Feb. 2, 2016

The 2014 Targa 4 and 4S both feature the same large glass rear window and silver "Targa bar" roll bar of the original models.

From Los Angeles Times • Aug. 29, 2014

The bill notes that other states allow such vehicles on recreational trails, and points to the larger vehicles’ seat belt and roll bar safety features.

From Washington Times • Jun. 18, 2014

It has four-wheel drive, bush guards, a roll bar, and heavy off-road tires.

From 100 New Yorkers of the 1970s by Millard, Max