US 12,139,097 B2
Seat belt retractor having vehicle sensor
Chan Ki Moon, Hwaseong-si (KR); Hyeon Kyu Kang, Hwaseong-si (KR); Ho Beom Yoon, Hwaseong-si (KR); and Yong Kwan Song, Hwaseong-si (KR)
Assigned to AUTOLIV DEVELOPMENT AB, Vargarda (SE)
Appl. No. 17/753,230
Filed by Autoliv Development AB, Vargarda (SE)
PCT Filed Aug. 27, 2020, PCT No. PCT/KR2020/011449
§ 371(c)(1), (2) Date Feb. 24, 2022,
PCT Pub. No. WO2021/040420, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 10-2019-0105224 (KR), filed on Aug. 27, 2019.
Prior Publication US 2022/0289135 A1, Sep. 15, 2022
Int. Cl. B60R 22/40 (2006.01); B60R 22/34 (2006.01)
CPC B60R 22/40 (2013.01) [B60R 22/34 (2013.01); B60R 2022/3402 (2013.01); B60R 2022/401 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A seat belt retractor having a vehicle sensor, the seat belt retractor comprising:
a fixed frame connected to a vehicle body;
a spool mounted on the fixed frame so as to be rotatable about a shaft arranged in a predetermined direction, in which a seat belt is wound around the spool;
a control disc connected to the shaft about which the spool rotates to rotate together with the spool, and having external teeth;
a vehicle sensor unit for detecting a change in acceleration of a vehicle by a fluctuation of an inertial member to prevent the control disc from rotating; and
an installation member coupled to a housing which is coupled to one sidewall of the fixed frame,
wherein the vehicle sensor unit is directly and rotatably coupled to the installation member.