Definition of inertia reel in English:

inertia reel

noun

  • A reel device that allows a vehicle seat belt to unwind freely but locks under force of impact or rapid deceleration.

    • ‘With the inertia reel belts used in cars nowadays, it is vital to ensure the belt is pulled very, very tightly around the seat to ensure it stays tight and the seat cannot wobble.’
    • ‘It was a modern inertia reel type of seat belt system.’
    • ‘Six airbags, five 3-point inertia reel seatbelts, an energy absorbing side impact protection system, a ring of steel surrounding the car and high strength steel beams at front and rear are standard.’
    • ‘It was fitted with three inertia reel three-point (lap and diagonal) belts.’
    • ‘Further injuries resulted from harness webbing stretch, failure of harness inertia reels and what researchers term the human body's ‘jelly-like’ extrusion through harness restraints.’

Pronunciation

inertia reel

/iˈnərSHə ˌrēl/