Patent ID: 7510042

Claim:
A seat belt apparatus for a vehicle comprising: a first belt retractor which can retract a seat belt of the vehicle, and which permits the retracted seat belt to be pulled out; a second belt retractor which can retract the seat belt of the vehicle, and which prohibits the retracted seat belt from being pulled out; a movement state quantity detector which detects a movement state quantity of the vehicle that indicates a possibility of rollover of the vehicle; a first belt retracting controller which determines that the vehicle will roll over and controls the first belt retractor such that the first belt retractor retracts the seat belt when the movement state quantity detected by the movement state quantity detector satisfies a predetermined determination condition; and a second belt retracting controller which controls the second belt retractor such that the second belt retractor retracts the seat belt when the movement state quantity detected by the movement state quantity detector satisfies the predetermined determination condition after a predetermined time has elapsed since the first belt retracting controller determines the possibility of rollover of the vehicle.