公开(公告)号：US12043209B2

公开(公告)日：2024-07-23

申请号：US17292030

申请日：2019-10-29

Applicant: Autoliv Development AB

Inventor： Antto-Christian Glässer ,  Markus Hueg ,  Florian Künzler

IPC: B60R22/41 ,  B60R22/46 ,  B60R22/48

CPC classification number: B60R22/46 ,  B60R22/41 ,  B60R22/48

Abstract: A seat belt retractor, with a belt shaft mounted rotatably in a frame, a blocking device for blocking the belt shaft in an extension direction of the seat belt, a control device having a control disc with a toothing for activating the blocking device, an electric actuator with a first blocking lever, which is spring-loaded into the toothing of the control disc in an engagement direction, an ECL blocking lever which, in a first position, blocks the first blocking lever of the actuator during a first belt band extension in a position in which said blocking lever does not engage in the toothing of the control disc, and an LC blocking lever which, in a first position, blocks the first blocking lever of the actuator when a predetermined belt band extension length is fallen short of in a first position.

公开(公告)号：US11052868B2

公开(公告)日：2021-07-06

申请号：US16468014

申请日：2017-11-23

Applicant: AUTOLIV DEVELOPMENT AB

Inventor： Tjark Brosowski ,  Markus Hueg ,  Aniruddha Deshpande

IPC: B60R22/40 ,  B60R22/415

Abstract: A seat belt retractor with a belt shaft rotatably supported in a frame for winding up a seat belt. A blocking device blocks the belt shaft in the winding off direction. A control disk (1) is spring-loaded in the direction of winding up and with a cogging (2). A sensor device (3) inertia mass (4) and a blocking lever (5) can be deflected by the inertia mass (4), which blocks the control disk (1) by deflecting the inertia mass (4) and an engagement of the blocking lever (5) into the cogging (2) of the control disk (1). A counter gear unit (6) driven by the rotary movement of the belt shaft, and a first switching device (7) is activated by the counter gear unit (6) and blocks the control disk (1) after a first belt webbing withdrawal (A) and frees it again after a second belt webbing intake (B). A second switching device (8) is activated by the counter gear unit (6) and fixes the blocking lever (5) after a belt webbing intake (C) in a non-engagement position into the cogging (2) of the control disk (1).