Patent ID: 6626463
Filing Date: 2003-09-30
Classification: B60R

Abstract:
A seatbelt device, comprising:a seatbelt for securing a passenger to a seat; a retractor for retracting one end of said seatbelt; a tongue plate through which said seatbelt passes; a buckle arranged in the vicinity of the abdominal region of said passenger and connected removably to said tongue plate; a collision prediction device for predicting a collision of a vehicle with an obstacle and generating a collision unavoidable signal when a distance from the vehicle to the obstacle is less than or equal to a collision unavoidable distance; a collision detection device for generating a collision signal upon detecting a collision based on the impact acceleration inflicted upon the vehicle upon collision; a first seatbelt tension increasing element for increasing the tension of said seatbelt when said collision unavoidable signal is received, a second seatbelt tension increasing element for increasing the tension of said seatbelt when said collision signal is received, wherein said first seatbelt tension increasing element increases the tension of the seatbelt before said second seatbelt tension increasing element increases the seatbelt tension, and after activation, said first seatbelt tension increasing element continues in operation until the impact acceleration has abated after the collision of the vehicle or until the buckle is disengaged.