公开(公告)号：US20200269806A1

公开(公告)日：2020-08-27

申请号：US16283948

申请日：2019-02-25

Applicant: AUTOLIV ASP, INC.

Inventor： Christopher D. HALL ,  Bin WANG ,  Kenneth H. KOHLNDORFER ,  Jon E. Burrow ,  Richard W. Koning

IPC: B60R22/46

Abstract: A seatbelt pretensioning retractor assembly for use in a vehicle is provided. The seatbelt pretensioning retractor assembly includes a housing adapted for being mounted to a frame and having an interior cavity, a pretensioner tube having an arcuate and curved shape, a sprocket rotatably mounted to the housing and fixedly coupled to a spindle, a rod disposed within the tube and a guide plate having a guide portion and a rod guide. The rod exits the tube along a perimeter of the sprocket, and toward an arcuate landing surface of the guide portion. In addition, the guide plate further includes a couple of tabs and ribs for avoiding rattling of the pretensioner tube in normal use of the retractor assembly.

公开(公告)号：US20240416863A1

公开(公告)日：2024-12-19

申请号：US18333896

申请日：2023-06-13

Applicant: AUTOLIV ASP, INC.

Inventor： Bin WANG ,  Christopher D. HALL ,  Jon E. BURROW ,  Ken KOHLNDORFER

IPC: B60R22/46

Abstract: A seatbelt pretensioner system includes a pretensioner tube in fluid communication with a gas generator and a pretensioner rod having a proximal end portion disposed toward the gas generator and a distal end portion disposed at an exit of the pretensioner tube. The pretensioner rod is disposed inside the pretensioner tube in a pre-actuation state and adapted to travel within the pretensioner tube toward a pretensioner wheel upon an actuation of the gas generator in a post-actuation state. The pretensioner rod includes a protrusion formed in a radial direction of the rod to couple with the pretensioner tube to restrict the rod from moving out from the pretensioner tube in the pre-actuation state. The pretensioner rod is configured to avoid the stripping of the rod and reduce energy consumption when the polymer rod is deformed during pretensioning.

公开(公告)号：US20200269805A1

公开(公告)日：2020-08-27

申请号：US16282525

申请日：2019-02-22

Applicant: AUTOLIV ASP, INC.

Inventor： Christopher D. HALL ,  Bin WANG ,  Kenneth H. KOHLNDORFER ,  Jon E. Burrow ,  Richard W. Koning

IPC: B60R22/46

Abstract: A seatbelt pretensioning retractor assembly for use in a vehicle is provided. The seatbelt pretensioning retractor assembly includes a housing adapted for being mounted to a frame and having an interior cavity, a pretensioner tube having an arcuate and curved shape, a sprocket rotatably mounted to the housing and fixedly coupled to a spindle, a polymer rod disposed within the tube and a guide plate having a guide portion and a rod guide. The polymer rod exits the tube along a perimeter of the sprocket, and toward an arcuate landing surface of the guide portion. In addition, the rod guide is configured for preventing the polymer rod from trapping before engaging with the sprocket or after pretensioning.