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A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.
A bullbar on a Land Rover Discovery fitted with spotlights and a sand flag. Push bar of a police car in Abu Dhabi, used to move stranded vehicles out of the way. A bullbar or push bumper (also kangaroo bar, roo bar, winch bar or nudge bar in Australia, livestock stop [NB 1] or kangaroo device in Russia, and push bar, ram bar, brush guard, grille guard, cactus pusher, rammer, PIT bar, PIT ...
The device consists of two pieces which, when locked together, form one long, fixed bar with two protruding hooks opening towards the ends of the bar. Each piece has one hook, intended to fit around the rim of the steering wheel. The smaller of the two pieces fits inside the larger piece and slides in and out for sizing.
Electrified exit hardware, sometimes called "panic hardware" or "crash bars", are used in fire exit applications. A person wishing to exit pushes against the bar to open the door, making it the easiest of mechanically-free exit methods. Electrified exit hardware can be either fail unlocked or fail locked.
An anti-intrusion bar or beam is a passive safety device, installed in most cars and other ground vehicles, which must protect passengers from side impacts. [1] Side impacts are particularly dangerous for two reasons: a) the location of impact is very close to the passenger, who can be immediately reached by the impacting vehicle; b) in many side-impact accidents, the impacting vehicle may be ...
A more commercial application of the nerf bar is for convenience purposes on a pickup truck or sport utility vehicle. It may act as a step to ease entry and exit from the vehicle, or to help prevent damage to the vehicle when crossing rocks off-road. Nerf bars can also be used to double as side bull bars on off-road vehicles. [citation needed]
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The Jeep Wrangler, a vehicle which is short, narrow, and designed to be used on uneven terrain, is unusual in that it comes with a roll bar as standard equipment. [ citation needed ] The decline in popularity of convertibles in the US was partly caused by concern about lack of protection in rollover accidents, because most convertibles have no ...