roll cage
noun
Meaning
A reinforced metal frame constructed inside the cabin of a vehicle to prevent the roof from collapsing during a rollover accident.
Examples
- The rally car was fitted with a custom roll cage to ensure the driver's safety on the dangerous mountain course.
- After the vehicle flipped three times, the intact roll cage proved its worth by keeping the cockpit from being crushed.
Synonyms: safety cage, roll bar, roll hoop, protective framework