公开(公告)号：US20210354656A1

公开(公告)日：2021-11-18

申请号：US16875698

申请日：2020-05-15

Applicant: AUTOLIV ASP, INC.

Inventor： BIN WANG ,  CHRISTOPHER D. HALL ,  JON BURROW ,  KEN KOHLNDORFER

IPC: B60R22/195

Abstract: A seat belt pretensioner for use in a seat belt pretensioning retractor assembly includes a pretensioner tube in fluid communication with a gas generator, and a driving element with a piston disposed inside the pretensioner tube and formed a flexible elongated rod. At least a portion of an outer surface of the elongated rod spaced from an inside surface of the pretensioner tube defines at least one clearance space to be filled by the deformed elongated rod in the event that a gas pressure from the gas generator is applied to the piston when a sprocket is engaged with the elongated rod causing an overpressure condition in an actuation volume defined between the piston and the gas generator within the pretensioner tube.

公开(公告)号：US20200290561A1

公开(公告)日：2020-09-17

申请号：US16354844

申请日：2019-03-15

Applicant: AUTOLIV ASP, INC.

Inventor： RICHARD W. KONING ,  BIN WANG ,  JON E. BURROW ,  CHRISTOPHER D. HALL ,  KENNETH HERBERT KOHLNDORFER

IPC: B60R22/34 ,  B60R22/36

Abstract: A vehicle seat belt assembly having a seat belt retractor with a spool rotatable with respect to a retractor frame, the spool storing a seat belt webbing wrapped thereon. The retractor also includes a primary locking mechanism for selectively locking the spool with respect to the retractor frame to provide vehicle occupant restraint. The retractor further includes an auxiliary locking mechanism for selectively locking the spool with respect to the retractor frame upon a predetermined restraint load acting on the spool.

公开(公告)号：US20200086825A1

公开(公告)日：2020-03-19

申请号：US16132833

申请日：2018-09-17

Applicant: AUTOLIV ASP, INC.

Inventor： CHRISTOPHER D. HALL ,  JON E. BURROW

IPC: B60R22/34

Abstract: A seat belt retractor for use with a seat belt webbing includes a spindle, a tread head part, a torsion bar, a stop nut and an energy management element. The spindle is configured for winding the seat belt webbing around the spindle. The tread head part is configured for having a locked condition or a free condition. The torsion bar is engaged with the spindle and the tread head part and configured to deflect torsionally by allowing relative rotation between the spindle and the tread head part when the tread head part is in the locked condition. The stop nut is operatively coupled with the tread head part and the spindle and configured to move in axial direction. Furthermore, the energy management element placed between the stop nut and the tread head part is configured to be deformed by the axial movement of the stop nut.