Patent ID: 6708914
Filing Date: 2004-03-23
Classification: B60R,F15B

Abstract:
A seatbelt pretensioner in cooperation with a seatbelt retractor reel, the pretensioner comprising:a housing with at least one passage, the passage having a first end and a second end; a flexible member having an end secured to said housing and extending across said at least one passage; a gas generator in fluid communication with the first end of the passage for providing a gas pressure thereto; and an actuator movable in said passage and having at least a first and a second pressure surface, said first pressure surface located on an end face of said actuator; wherein upon pretensioner activation the gas generator initially provides a gas pressure to the first pressure surface, then to the second pressure surface, thereby driving the actuator from the first end toward the second end of said passage, simultaneously driving said flexible member toward said second end.