US 11,851,023 B2
Pre-tensioner for seat belt
Dae Woon Kim, Gyeonggi-do (KR); Jung Woo Park, Gyeongsangnam-do (KR); and Won Ryong Song, Gyeongsangnam-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Samsong Industries, Ltd., Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Samsong Industries, Ltd., Seoul (KR)
Filed on Aug. 29, 2022, as Appl. No. 17/897,875.
Claims priority of application No. 10-2021-0126425 (KR), filed on Sep. 24, 2021.
Prior Publication US 2023/0097938 A1, Mar. 30, 2023
Int. Cl. B60R 22/20 (2006.01); B60R 22/26 (2006.01)
CPC B60R 22/201 (2013.01) [B60R 22/26 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pre-tensioner for a seat belt, the pre-tensioner comprising:
a housing;
a wire coupled to the housing;
an anchor or a buckle coupled to another end opposite to one end of the wire fastened to the housing;
a carrier disposed on a first surface of the housing;
a fixing member connected to the carrier;
a first pulley disposed in a first zone of the first surface of the housing;
a second pulley disposed in a second zone of the first surface opposite to the first zone with respect to the carrier;
a driving unit having at least a portion coupled to the second pulley; and
a belt disposed to mesh with the first pulley, the second pulley, and the carrier.