A safety cage is required in most racing series. Mounted in race cars, sometimes also in street cars,  its task is to protect the driver. It’s steel bars braced and welded to each other. A well designed roll cage protects the driver from being crushed in a wreck – allowing him to leave the vehicle intact, protecting against possible crushing by the non-rigid body of the car. As much as the roll cage for safety in a race car, you can see in the following video, where the driver falls out of the way and roll over falling down over 30 meters.

Roll cage is all about safety – thanks to its rigid construction, protects the driver during roll-over as well as in the case of side or frontal impacts. However, it is not mounted in road cars, with its practicality, as well as the conditions of use, due to the number of seats in the rear row, the amount of space above the head – which also forces to wear a helmet during –  to protect against hitting a steel cage during an accident.

Modern cars are designed to withstand lower speed impacts with similar weight objects. Everything in the car is designed to reduce the deceleration forces on the driver. It is effective on public roads and during possible accidents, but not in race cars. The impact on the racing car, is higher, with increased rigidity of the chassis, and reduced deformation limits. It creates the demand for:

  1.  Light helmets, with restraining gear (HANS) – protecting the head from hitting the steel cage, and decreasing forces on the neck.
  2. 6 point belts, which will allow the driver to stay in his place in the car druing an accident.
  3. Nomex fire suits – due to difficulty to get off the burning wreck.

 

An additional advantage of the roll cage is that it stiffens the entire structure, which positively affects on the driveability .

If you wonder why racing cars are equipped with a safety cage, I hope that this article gave you some fresh knowledge.